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  • 1.
    Al-Anbari, Mohammad A.
    et al.
    Collage of Engineering, University of Babylon, Iraq.
    Thameer, Mohanad Y.
    Collage of Engineering, University of Babylon, Iraq.
    Al-Ansari, Nadhir
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.
    Landfill Site Selection by Weighted OverlayTechnique: Case Study of Al-Kufa, Iraq2018Ingår i: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 10, nr 4, artikel-id 999Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Landfill siting is a hard and complex process. For this reason, it is considered as one of the major problems in waste management. This is due to the fact that a number of factors are involved within the process such as such as inhabitants’ growth, rapid economic growth, living standards improvements, etc. In Iraq, landfill siting does not follow environmental regulations. Al-Kufa city located is located south-western part of Iraq (area of 550 km2 and inhabitants 372,760). Existing landfills are not selected according to the environmental standards. Landfill site that is required was achieved using a multi-criteria decision analysis (MCDA) and spatial overlay analysis using a geographic information system (GIS). Many factors were considered in the siting process; including geology, water supplies resources, urban centers, sensitive sites, and wells. AHP (analytic hierarchy process) method was used in weighting the criteria used. The result showed that there are six sites most suitable covering an area about (113) km2.

  • 2.
    Aldieri, Luigi
    et al.
    Department of Economic and Statistical Sciences, University of Salerno, Fisciano, Italy.
    Grafström, Jonas
    Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, Samhällsvetenskap.
    Sundström, Kristoffer
    The Ratio Institute, Stockholm, Sweden.
    Vinci, Concetto Paolo
    Department of Economic and Statistical Sciences, University of Salerno, Fisciano, Italy.
    Wind Power and Job Creation2020Ingår i: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 12, nr 1, artikel-id 45Artikel, forskningsöversikt (Refereegranskat)
    Abstract [en]

    The purpose of this paper is to provide a global overview of job effects per MW of wind power installations, which will enable improved decision-making and modeling of future wind-power projects. We found indications that job creation connected to wind-power installations is rather limited. In total, 17 peer-reviewed articles and 10 reports/non-peer-reviewed papers between 2001 and 2019 were assessed. Our three major policy conclusions are as follows: (a) job creation seems to be limited; (b) each new project should consider a unique assessment, since all projects have been undertaken within different institutional frameworks, labor markets, and during separate years, meaning that the technology is not comparable; and (c) the number of jobs depends on the labor intensity of the country.

  • 3.
    Al-Janabi, Ahmed Mohammed Sami
    et al.
    Department of Civil Engineering, Faculty of Engineering, Universiti Putra Malaysia, UPM Serdang, Selangor, Malaysia.
    Ghazali, Abdul Halim
    Department of Civil Engineering, Faculty of Engineering, Universiti Putra Malaysia, UPM Serdang, Selangor, Malaysia.
    Ghazaw, Yousry Mahmoud
    Department of Irrigation and Hydraulics, Faculty of Engineering, Alexandria University, Alexandria, Egypt. Department of Civil Engineering, College of Engineering, Qassim University, Buraydah, Saudi Arabia.
    Afan, Haitham Abdulmohsin
    Institute of Research and Development, Duy Tan University, Da Nang, Vietnam.
    Al-Ansari, Nadhir
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.
    Yaseen, Zaher Mundher
    Sustainable Developments in Civil Engineering Research Group, Faculty of Civil Engineering, Ton Duc Thang University, Ho Chi Minh City, Vietnam.
    Experimental and Numerical Analysis for Earth-Fill Dam Seepage2020Ingår i: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 12, nr 6, s. 1-14, artikel-id 2490Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Earth-fill dams are the most common types of dam and the most economical choice. However, they are more vulnerable to internal erosion and piping due to seepage problems that are the main causes of dam failure. In this study, the seepage through earth-fill dams was investigated using physical, mathematical, and numerical models. Results from the three methods revealed that both mathematical calculations using L. Casagrande solutions and the SEEP /Wnumerical model have a plotted seepage line compatible with the observed seepage line in the physical model. However,when the seepage flow intersected the downstream slope and when piping took place, the use of SEEP /Wto calculate the flow rate became useless as it was unable to calculate the volume of water flow in pipes. This was revealed by the big dierence in results between physical and numerical models in the first physical model, while the results were compatible in the second physical model when the seepage line stayed within the body of the dam and low compacted soil was adopted. Seepage analysis for seven dierent configurations of an earth-fill dam was conducted using the SEEP /W model at normal and maximum water levels to find the most appropriate configuration among them. The seven dam configurations consisted of four homogenous dams and three zoned dams. Seepage analysis revealed that if sucient quantity of silty sand soil is available around the proposed dam location, a homogenous earth-fill dam with a medium drain length of 0.5 m thickness is the best design configuration. Otherwise, a zoned earth-fill dam with a central core and 1:0.5 Horizontal to Vertical ratio (H:V) is preferred.

  • 4.
    Alkaradaghi, Karwan
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi. Department of Geology, College of Science, Sulaimani University, Sulaimaniyah, Iraq. Kurdistan Institution for Strategic Studies and Scientific Research, Sulaimaniyah, Iraq.
    Ali, Salahalddin S.
    Department of Geology, College of Science, Sulaimani University, Sulaimaniyah, Iraq. Komar University of Science and Technology, Sulaimaniyah, Iraq.Komar Research Center, Sulaimaniyah, Iraq.
    Al-Ansari, Nadhir
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.
    Laue, Jan
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.
    Chabuk, Ali
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.
    Landfill Site Selection Using MCDM Methods and GIS in the Sulaimaniyah Governorate, Iraq2019Ingår i: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 11, nr 17, artikel-id 4530Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    A shortage of land for waste disposal is one of the serious problems that faces urban areas in developing countries. The Sulaimaniyah Governorate, located in the north of Iraq, is one of the major cities in the Kurdistan Region of the country, covering an area of 2400 km2 with a population of 856,990 in 2016. Currently, there is no landfill site in the study area that meets scientific and environmental criteria, and inappropriate solid waste dumping is causing negative environmental impacts. The process of landfill site selection is considered a complex process and is restricted by numerous factors and regulations. This paper proposes multi-criteria decision-making (MCDM) methods in a model for landfill site decision. The model assumes the input of two groups of factors that need to satisfy the optimal values of weight coefficients. These groups of constants are natural factors and artificial factors, and they included thirteen selected criteria: slope, geology, land use, urban area, villages, rivers, groundwater, slope, elevation, soil, geology, road, oil and gas, land use, archaeology and power lines. The criteria were used in the geographic information system (GIS), which has a high capacity to process and analyze various data. In addition, multi-criteria decision-making (MCDM) methods followed by the weighted linear combination (WLC) method were used to derive criteria weightings using a matrix of pair-wise comparison. Finally, all the multi criteria decision methods were combined to obtain an intersection of the suitability index map for candidate landfill sites. Seven appropriate sites for landfill were suggested, all of which satisfied the scientific and environmental criteria which were adopted in this study.

  • 5.
    Andersson, Klas
    et al.
    Göteborgs universitet.
    Jagers, Sverker
    Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, Samhällsvetenskap.
    Lindskog, Annika
    Göteborgs universitet.
    Martinsson, Johan
    Göteborgs universitet.
    Learning for the Future?: Effects of ESD on teacher education students2013Ingår i: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 5, nr 12, s. 5135-5152Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Currently, politicians, university representatives, scholars and leading NGOs share a strong belief in the ability of educational systems to generate positive attitudes to sustainable development (SD) among citizens, with the idea of Education for Sustainable Development (ESD) as perhaps the most apparent expression of this conviction. The aim of this paper is to investigate whether ESD might have the intended effects on teacher education students. More specifically, we account for the results from a panel study on the effects of a course on SD held in autumn 2010 at the University of Gothenburg (n = 323) on teacher education students. The surveys consisted of questions about the students’ concerns about various issues, including issues related to SD, and their attitudes towards SD and views of moral obligations to contributing to SD. The study included a control group (n = 97) consisting of students from the teacher-training programme at University West, which had not and did not include ESD. We find positive effects of ESD on almost all attitudes and perceptions, including e.g., personal responsibility in relation to SD and willingness to contribute to SD, while there is no noticeable effect in the control group. We conclude the paper by discussing the implications of our results for the idea of ESD in teacher training programmes at Swedish higher education institutions.

  • 6.
    Armanuos, Asaad M.
    et al.
    Irrigation and Hydraulics Engineering Department, Civil Engineering Department, Faculty of Engineering, Tanta University, 31512 Tanta, Egypt.
    Al-Ansari, Nadhir
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.
    Yaseen, Zaher Mundher
    Sustainable Developments in Civil Engineering Research Group, Faculty of Civil Engineering, Ton Duc Thang University, Ho Chi Minh City, Vietnam.
    Assessing the Effectiveness of Using Recharge Wells for Controlling the Saltwater Intrusion in Unconfined Coastal Aquifers with Sloping Beds: Numerical Study2020Ingår i: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 12, nr 7, artikel-id 2685Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Groundwater systems are considered major freshwater sources for many coastal aquifers worldwide. Seawater intrusion (SWI) inland into freshwater coastal aquifers is a common environmental problem that causes deterioration of the groundwater quality. This research investigates the effectiveness of using an injection through a well to mitigate the SWI in sloping beds of unconfined coastal aquifers. The interface was simulated using SEAWAT code. The repulsion ratios due to the length of the SWI wedge (RL) and the area of the saltwater wedge (RA) were computed. A sensitivity analysis was conducted to recognize the change in the confining layer bed slope (horizontal, positive, and negative) and hydraulic parameters of the value of the SWI repulsion ratio. Injection at the toe itself achieved higher repulsion ratios. RL and RA declined if the injection point was located remotely and higher than the toe of the seawater wedge. Installation at the toe achieved a higher RL in positive sloping followed by horizontal and negative slopes. Moreover, the highest value of RA could be reached by injecting at the toe itself with a horizontal bed aquifer, followed by negative and positive slopes. The recharge well is confirmed as one of the most effective applications for the mitigation of SWI in sloping bed aquifers. The Akrotiri case study shows that the proposed recharging water method has a significant impact on controlling SWI and declines in both SWI wedge length and area.

  • 7.
    Brolund, Johan
    et al.
    Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, Samhällsvetenskap.
    Lundmark, Robert
    Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, Samhällsvetenskap.
    Effect of Environmental Regulation Stringency on the Pulp and Paper Industry2017Ingår i: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 9, nr 12, artikel-id 2323Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    he article investigates whether environmental regulations have affected productivity development and technological change in the European pulp and paper industry. A dynamic panel data approach is selected for analyzing a sample consisting of the pulp and paper industries in eight European countries. Industry total factor productivity for the period 1993–2009 is used as the dependent variable; it is explained by the intensities of environmental regulations for various types of pollutants, as well as by a number of other independent variables. The econometric results indicate that the regulation of nitrogen oxides is associated with productivity improvements with a one-year lag, whereas regulations regarding sulphur dioxide and carbon dioxide have not had any statistically significant impact. In line with the a priori expectations, the price of pulp is connected to a negative effect, while lagged R&D expenditures have had corresponding positive impacts. However, since stationary tests are asymptotic and the data series are quite short, strong conclusions regarding the actual causal effect of environmental policy could not be drawn. The results could therefore not be viewed as a proof of the so-called strong Porter hypothesis postulating that stringent well-designed environmental regulations increase productivity growth compared to a no-policy scenario.

  • 8.
    Bui, Dieu Tien
    et al.
    Geographic Information Science Research Group, Ton Duc Thang University, Ho Chi Minh City, Minh, Vietnam. Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho Chi Minh City, Minh, Vietnam.
    Asl, Dawood Talebpour
    Department of Geomorphology, Faculty of Natural Resources, University of Kurdistan, Sanandaj, Iran.
    Ghanavati, Ezatolla
    Department of Geomorphology, Faculty of Geography, University of Kharazmi, Tehran, Iran.
    Al-Ansari, Nadhir
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.
    Khezri, Saeed
    Department of Geomorphology, Faculty of Natural Resources, University of Kurdistan, Sanandaj, Iran.
    Chapi, Kamran
    Department of Watershed and Rangeland Management, Faculty of Natural Resources, University of Kurdistan, Sanandaj, Iran.
    Amini, Ata
    Kurdistan Agricultural and Natural Resources Research and Education Center, AREEO, Sanandaj, Iran.
    Pham, Binh Thai
    Institute of Research and Development, Duy Tan University, Da Nang, Vietnam.
    Effects of Inter-Basin Water Transfer on Water Flow Condition of Destination Basin2020Ingår i: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 12, nr 338Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    In recent years, the intensification of drought and unsustainable management and use of water resources have caused a significant decline in the water level of the Urmia Lake in the northwest of Iran. This condition has affected the lake, approaching an irreversible point such that many projects have been implemented and are being implemented to save the natural condition of the Urmia Lake, among which the inter-basin water transfer (IBWT) project from the Zab River to the lake could be considered an important project. The main aim of this research is the evaluation of the IBWT project effects on the Gadar destination basin. Simulations of the geometrical properties of the river, including the bed and flow, have been performed, and the land cover and flood map were overlapped in order to specify the areas prone to flood after implementing the IBWT project. The results showed that with the implementation of this project, the discharge of the Gadar River was approximately tripled and the water level of the river rose 1 m above the average. In April, May, and June, about 952.92, 1458.36, and 731.43 ha of land adjacent to the river (floodplain) will be inundated by flood, respectively. Results also indicated that UNESCO’s criteria No. 3 (“a comprehensive environmental impact assessment must indicate that the project will not substantially degrade the environmental quality within the area of origin or the area of delivery”) and No. 5 (“the net benefits from the transfer must be shared equitably between the area of origin and the area of water delivery”) have been violated by implementing this project in the study area. The findings could help the local government and other decision-makers to better understand the effects of the IBWT projects on the physical and hydrodynamic processes of the Gadar River as a destination basin.

  • 9.
    Bui, Dieu Tien
    et al.
    Geographic Information Science Research Group, Ton Duc Thang University, Ho Chi Minh City, Vietnam. Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho Chi Minh City, Vietnam.
    Shirzadi, Ataollah
    Department of Rangeland and Watershed Management, Faculty of Natural Resources, University of Kurdistan, Sanandaj, Iran.
    Amini, Ata
    Kurdistan Agricultural and Natural Resources Research and Education Center, AREEO, Sanandaj, Iran.
    Shahabi, Himan
    Department of Geomorphology, Faculty of Natural Resources, University of Kurdistan, Sanandaj , Iran. Department of Zrebar Lake Environmental Research, Kurdistan Studies Institute, University of Kurdistan.
    Al-Ansari, Nadhir
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.
    Hamidi, Shahriar
    Department of Water Science and Engineering, Faculty of Agriculture, University of Kurdistan, Sanandaj, Iran.
    Singh, Sushant K.
    Department of Health, Insurance & Life Sciences, Data & Analytics, Virtusa Corporation, Irvington, NJ, USA.
    Pham, Binh Thai
    Institute of Research and Development, Duy Tan University, Da Nang, Vietnam.
    Ahmad, Baharin Bin
    Faculty of Built Environment and Surveying, Universiti Teknologi Malaysia (UTM), Johor Bahru, Malaysia.
    Ghazvinei, Pezhman Taherei
    Department of Civil Engineering, Technical and Engineering College, Ale Taha University, Tehran, Iran.
    A Hybrid Intelligence Approach to Enhance the Prediction Accuracy of Local Scour Depth at Complex Bridge Piers2020Ingår i: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 12, nr 3, s. 1-24, artikel-id 1063Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Local scour depth at complex piers (LSCP) cause expensive costs when constructing bridges. In this study, a hybrid artificial intelligence approach of random subspace (RS) meta classifier, based on the reduced error pruning tree (REPTree) base classifier, namely RS-REPTree, was proposed to predict the LSCP. A total of 122 laboratory datasets were used and portioned into training (70%: 85 cases) and validation (30%: 37 cases) datasets for modeling and validation processes, respectively. The statistical metrics such as mean absolute error (MAE), root mean squared error (RMSE), correlation coefficient (R), and Taylor diagram were used to check the goodness-of-fit and performance of the proposed model. The capability of this model was assessed and compared with four state-of-the-art soft-computing benchmark algorithms, including artificial neural network (ANN), support vector machine (SVM), M5P, and REPTree, along with two empirical models, including the Florida Department of Transportation (FDOT) and Hydraulic Engineering Circular No. 18 (HEC-18). The findings showed that machine learning algorithms had the highest goodness-of-fit and prediction accuracy (0.885 < R < 0.945) in comparison to the other models. The results of sensitivity analysis by the proposed model indicated that pile cap location (Y) was a more sensitive factor for LSCP among other factors. The result also depicted that the RS-REPTree ensemble model (R = 0.945) could well enhance the prediction power of the REPTree base classifier (R = 0.885). Therefore, the proposed model can be useful as a promising technique to predict the LSCP.

  • 10.
    Chabuk, Ali
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi. Department of Environment Engineering, College of Engineering, University of Babylon, Babylon, Iraq.
    Al-Ansari, Nadhir
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.
    Alkaradaghi, Karwan
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi. Kurdistan Institution for strategic studies and scientific Research, Sulaimaniyah, Iraq.
    Al-Rawabdeh, Abdulla Mustafa Muhamed
    Abdullah Mustafa Muhamed Al-Rawabdeh, Department of Earth and Environmental Science, Yarmouk University, Irbid, Jordan.
    Laue, Jan
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.
    Hussain, Hussain Musa
    Remote Sensing Center, University of Kufa, Kufa, Iraq; Department of Geology, Faculty of Science, University of Kufa, Kufa, Iraq.
    Pusch, Roland
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.
    Knutsson, Sven
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.
    Landfill Final Cover Systems Design for Arid Areas Using the HELP Model: A Case Study in the Babylon Governorate, Iraq2018Ingår i: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 10, nr 12, artikel-id 4568Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The main purpose of selecting proper designs for landfills is to accommodate quantities of waste without having a negative effect on the surrounding environment and human health. The Babylon Governorate (province) in Iraq was taken as an example of an arid area with very shallow groundwater and where irregular waste disposal sites had developed that had not been subject to international standards when they were selected for landfill use. In the current study, the suggested design for landfills is a base liner and final cover system. In this suggested design, the final cover system allows for three scenarios. The first scenario considers an evapotranspiration soil cover (ET) (capillary barriers type), the second scenario is a modified cover design of “RCRA Subtitle D”, and the third scenario is a combination of the first and second scenarios. The HELP 3.95 D model was applied to the selected landfill sites in the governorate to check if there was any penetration of the leachate that might in future percolate from the landfill’s bottom barrier layer in arid areas. The results from the suggested landfill design showed that there was no leachate percolation from the bottom barrier layer using the second and third scenarios. For the first scenario, however, there was a small amount of leachate through the bottom barrier layer in the years 2013 and 2014.

  • 11.
    Chabuk, Ali
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi. Department of Environment Engineering, College of Engineering, University of Babylon, Babylon 51001, Iraq.
    Al-Ansari, Nadhir
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.
    Ezz-Aldeen, Mohammad
    Department of Dams and Water Resources Engineering, University of Mosul, Mosul 41001, Iraq.
    Laue, Jan
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.
    Pusch, Roland
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.
    Hussain, Hussain Musa
    Remote Sensing Center, University of Kufa, Kufa 51001, Iraq.
    Knutsson, Sven
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.
    Two Scenarios for Landfills Design in Special Conditions Using the HELP Model: A Case Study in Babylon Governorate, Iraq2018Ingår i: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 10, nr 1, artikel-id 125Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The sound design of landfills is essential in order to protect human health and the environment (air, water, and soil). The study area, Babylon Governorate, is situated in the middle of Iraq, and is distinguished by a hot climate and shallow groundwater. The governorate did not have landfill sites that meet international criteria; in addition, the groundwater depth in Babylon Governorate is commonly shallow. Previously, the most important criteria for the study area and GIS software were used to select the best sites for locating landfills in the major cities of the governorate. In this study, the Hydrologic Evaluation of Landfill Performance (HELP 3.95D) model was applied in order to ensure that there was no leakage of the leachate that results from the waste in the selected landfill sites. It is the most commonly utilized model for landfill design, and it is used to estimate water inflow through the soil layers. For the present study, to avoid groundwater pollution by leachate from a landfill site due to the shallow groundwater depth, compacted waste was placed on the surface using two height scenarios (2 m and 4 m). This design was developed using the soil properties of the selected sites coupled with the weather parameters in Babylon Governorate (precipitation, temperature, solar, and evapotranspiration) for a 12-year period covering 2005 to 2016. The results from both of the suggested landfill designs showed an absence of leachate from the bottom liner.

  • 12.
    Chabuk, Ali
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi. Department of Environment Engineering, College of Engineering, University of Babylon.
    Al-Ansari, Nadhir
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.
    Hussain, Hussain Musa
    Department of Geology, Faculty of Science, University of Kufa.
    Knutsson, Sven
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.
    Pusch, Roland
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.
    Laue, Jan
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.
    Combining GIS Applications and Method of Multi-Criteria Decision-Making (AHP) for Landfill Siting in Al-Hashimiyah Qadhaa, Babylon, Iraq2017Ingår i: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 9, nr 11, artikel-id 1932Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Landfill siting is a complex process. It is one of the major problems in waste management, where many factors should be taken into consideration when selecting a suitable site for landfill in any given area. At the present time, there are many random waste disposal sites distributed throughout Al-Hashimiyah Qadhaa in Iraq. In this study, the Geographic Information System (GIS) and the Analytical Hierarchy Process (AHP) were used to select the best sites for landfill. The process of selecting sites for landfill in Al-Hashimiyah Qadhaa comprised two steps. First, fifteen different criteria were mapped and incorporated into overlay analyses within GIS software to produce the final suitability index map for the site. The second step comprises the exclusion of unsuitable areas from the final map to simplify identification of the candidate sites for landfill in the study area. The weightings of criteria were identified using AHP, and the weightings of the sub-criteria of each criterion were determined based on multiple factors. In order to accommodate solid waste from 2020 until 2030, two suitable candidate landfill sites were determined which fulfill the required area of 1.013 km2 with areas of 1.374 km2 and 1.288 km2 respectively.

  • 13.
    Fallde, Magdalena
    et al.
    Department of Thematic Studies, Technology and Social Change, Linköping University.
    Torén, Johan
    RISE Research Institutes of Sweden.
    Wetterlund, Elisabeth
    Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Energivetenskap.
    Energy System Models as a Means of Visualising Barriers and Drivers of Forest-Based Biofuels: An Interview Study of Developers and Potential Users2017Ingår i: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 9, nr 10, artikel-id 1792Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Forest-derived biofuels have been on the agenda for several decades. Despite extensive research and development efforts, forest biofuel concepts have nevertheless not yet been realized on any significant scale. The discrepancy between the expectations from the research community and the lack of momentum regarding biofuel production raises the question of if and how research results can be used to achieve such goals. Here, we report results from an interview study with the aim of evaluating how energy system models can be used to illustrate barriers and drivers for forest biofuels, with focus on Swedish conditions, using the BeWhere model as case. The study is framed as an example of expertise, and problematizes how energy system models are interpreted among expected users. While the interviews revealed some general scepticism regarding models, and what kinds of questions they can answer, the belief was also expressed that increased complexity might be an advantage in terms of being able to accommodate more barriers against forest biofuels. The study illustrates the complexity of this policy area, where an energy system model can answer some, but never all, ‘what if…?’ questions. The results reveal a need for reformation in energy system modelling in order to more explicitly make society the subject of the work, and also illustrate that the belief in expertise as a tool for consensus-building in decision-making should be questioned.

  • 14.
    Feng, Kailun
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Industriellt och hållbart byggande. Department of Construction Management, Harbin Institute of Technology, Harbin, China.
    Lu, Weizhuo
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Industriellt och hållbart byggande.
    Chen, Shiwei
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Byggkonstruktion och brand. Department of Construction Management, Harbin Institute of Technology, Harbin, China.
    Wang, Yaowu
    Department of Construction Management, Harbin Institute of Technology, Harbin, China.
    An Integrated Environment–Cost–Time Optimisation Method for Construction Contractors Considering Global Warming2018Ingår i: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 10, nr 11, artikel-id 4207Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Construction contractors play a vital role in reducing the environmental impacts during the construction phase. To mitigate these impacts, contractors need to develop environmentally friendly plans that have optimal equipment, materials and labour configurations. However, construction plans with optimal environment may negatively affect the project cost and duration, resulting in dilemma for contractors on adopting low impacts plans. Moreover, the enumeration method that is usually used needs to assess and compare the performances of a great deal of scenarios, which seems to be time consuming for complicated projects with numerous scenarios. This study therefore developed an integrated method to efficiently provide contractors with plans having optimal environment-cost-time performances. Discrete-event simulation (DES) and particle swarm optimisation algorithms (PSO) are integrated through an iterative loop, which remarkably reduces the efforts on optimal scenarios searching. In the integrated method, the simulation module can model the construction equipment and materials consumption; the assessment module can evaluate multi-objective performances; and the optimisation module fast converges on optimal solutions. A prototype is developed and implemented in a hotel building construction. Results show that the proposed method greatly reduced the times of simulation compared with enumeration method. It provides the contractor with a trade-off solution that can average reduce 26.9% of environmental impact, 19.7% of construction cost, and 10.2% of project duration. The method provides contractors with an efficient and practical decision support tool for environmentally friendly planning.

  • 15.
    Feng, Kailun
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Industriellt och hållbart byggande. Department of Construction Management, Harbin Institute of Technology, Harbin, 150001, China.
    Lu, Weizhuo
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Industriellt och hållbart byggande.
    Olofsson, Thomas
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Industriellt och hållbart byggande.
    Chen, Shiwei
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Byggkonstruktion och brand. Department of Construction Management, Harbin Institute of Technology, Harbin, 150001, China.
    Yan, Hui
    School of Civil Engineering and Transportation, South China University of Technology, Guangzhou, 510641, China.
    Wang, Yaowu
    Harbin Institute of Technology, Information Technology Institute, Harbin, China.
    A predictive environmental assessment method for construction operations: Application to a Northeast China case study2018Ingår i: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 10, nr 11, artikel-id 3868Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Construction accounts for a considerable number of environmental impacts, especially in countries with rapid urbanization. A predictive environmental assessment method enables a comparison of alternatives in construction operations to mitigate these environmental impacts. Process-based life cycle assessment (pLCA), which is the most widely applied environmental assessment method, requires lots of detailed process information to evaluate. However, a construction project usually operates in uncertain and dynamic project environments, and capturing such process information represents a critical challenge for pLCA. Discrete event simulation (DES) provides an opportunity to include uncertainty and capture the dynamic environments of construction operations. This study proposes a predictive assessment method that integrates DES and pLCA (DES-pLCA) to evaluate the environmental impact of on-site construction operations and supply chains. The DES feeds pLCA with process information that considers the uncertain and dynamic environments of construction, while pLCA guides the comprehensive procedure of environmental assessment. A DES-pLCA prototype was developed and implemented in a case study of an 18-storey building in Northeast China. The results showed that the biggest impact variations on the global warming potential (GWP), acidification potential (AP), eutrophication (EP), photochemical ozone creation potential (POCP), abiotic depletion potential (ADP), and human toxicity potential (HTP) were 5.1%, 4.1%, 4.1%, 4.7%, 0.3%, and 5.9%, respectively, due to uncertain and dynamic factors. Based on the proposed method, an average impact reduction can be achieved for these six indictors of 2.5%, 21.7%, 8.2%, 4.8%, 32.5%, and 0.9%, respectively. The method also revealed that the material wastage rate of formwork installation was the most crucial managing factor that influences global warming performance. The method can support contractors in the development and management of environmentally friendly construction operations that consider the effects of uncertainty and dynamics.

  • 16. Finnveden, Göran
    et al.
    Ekvall, Tomas
    Arushanyan, Yevgeniya
    Bisaillon, Mattias
    Henriksson, Greger
    Östling, Ulrika Gunnarsson
    Ljungrren-Söderman, Maria
    Sahlin, Jenny
    Stenmarck, Åsa
    Sundberg, Johan
    Sundqvist, Jan-Olov
    Svenfelt, Åsa
    Söderholm, Patrik
    Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, Samhällsvetenskap.
    Björklund, Anna
    Eriksson, Ola
    Forsfält, Tomas
    Guath, Mona
    Policy instruments towards a sustainable waste management2013Ingår i: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 5, nr 3, s. 841-881Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The aim of this paper is to suggest and discuss policy instruments that could lead towards a more sustainable waste management. The paper is based on evaluations from a large scale multi-disciplinary Swedish research program. The evaluations focus on environmental and economic impacts as well as social acceptance. The focus is on the Swedish waste management system but the results should be relevant also for other countries. Through the assessments and lessons learned during the research program we conclude that several policy instruments can be effective and possible to implement. Particularly, we put forward the following policy instruments: “Information”; “Compulsory recycling of recyclable materials”; “Weight-based waste fee in combination with information and developed recycling systems”; “Mandatory labeling of products containing hazardous chemicals”, “Advertisements on request only and other waste minimization measures”; and “Differentiated VAT and subsidies for some services”. Compulsory recycling of recyclable materials is the policy instrument that has the largest potential for decreasing the environmental impacts with the configurations studied here. The effects of the other policy instruments studied may be more limited and they typically need to be implemented in combination in order to have more significant impacts. Furthermore, policy makers need to take into account market and international aspects when implementing new instruments. In the more long term perspective, the above set of policy instruments may also need to be complemented with more transformational policy instruments that can significantly decrease the generation of waste.

  • 17.
    Harring, Niklas
    et al.
    Göteborgs universitet.
    Jagers, Sverker
    Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, Samhällsvetenskap.
    Should we trust in values?: Explaining public support for pro-environmental taxes2013Ingår i: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 5, nr 1, s. 210-227Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    In this paper we are concerned with what explains public acceptance and support of environmental taxes. We examine findings in environmental psychology emphasizing that people’s (environmental) value-orientation is the dominant driver determining individuals’ support for pro-environmental policy instruments. We introduce a complementary model, mainly drawing upon findings in political science, suggesting that people’s support for policy instruments is dependent on their level of political trust and their trust in other citizens. More specifically, we analyze whether political trust and inter-personal trust affect individuals’ support for an increased carbon dioxide tax in Sweden, while checking their value orientation, self-interest, and various socio-economic values. We make use of survey data obtained from a mail questionnaire sent out to a random sample of 3,000 individuals in 2009. We find that apart from people’s values, beliefs, and norms, both political trust and interpersonal trust have significant effects on people's attitudes toward an increased tax on carbon dioxide.

  • 18.
    Harring, Niklas
    et al.
    Centre for Collective Action Research, Department of Political Science, University of Gothenburg.
    Matti, Simon
    Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, Samhällsvetenskap.
    Jagers, Sverker
    Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, Samhällsvetenskap.
    Public support for pro-environmental policy measures: Examining the impact of personal values and ideology2017Ingår i: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 9, nr 5, artikel-id 679Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    This article explores the relationship between two major explanations of the formation of positive attitudes towards environmental policy measures. Ideological orientation and personal values have, in theory, significant overlaps in the sense that they collect general and cross-situational sentiments used to understand and evaluate a wide range of political issues. However, in the empirical literature, although they independently have been shown to have rather significant effects on pro-environmental policy attitudes, they are rarely tested together in order to explore whether they capture the same basic mechanisms. In this article, two data sets from Sweden are used to demonstrate both that ideological orientation and personal values independently affect pro-environmental policy support, as well as that these effects differ across different policy types.

  • 19.
    Isaksson, Raine
    et al.
    Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, Industriell Ekonomi.
    Johnsson, Mikael
    Karlstad University, Department of Humanities & Social Sciences.
    A preliminary model for assessing university sustainability from the student perspective2013Ingår i: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 5, nr 9, s. 3690-3701Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    This paper assesses university sustainability from the perspective of the interested student. A set of questions for a university website analysis is proposed and preliminary results for Swedish universities are presented. The university website analysis intends to emulate a student looking for a university working with sustainable development. University ranking is compared with the results from the sustainability assessment. Results from the study are based on university website analysis of 18 Swedish universities out of a total of 30. Universities are grouped in high ranked, low ranked and benchmark universities. For the majority of the studied universities it was possible to extract the information needed for a sustainability assessment from the website, which indicates that further development of the method is of interest. The average level of performance in the assessment was found to be less than 50% of the maximum of the proposed scale. With Sweden generally being a leading nation in sustainable development the results are below of what could be expected. Ranking, based on the Swedish ranking system does not seem to predict university sustainability performance. The indication is that Gothenburg University, while having further improvement potential, could be considered a benchmark in the Swedish context.

  • 20.
    Jagers, Sverker
    et al.
    Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, Samhällsvetenskap.
    Matti, Simon
    Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, Samhällsvetenskap.
    Ecological citizens: identifying values and beliefs that support individual environmental responsibility among Swedes2010Ingår i: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 2, nr 4, s. 1055-1079Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    As it has been suggested that involvement of individuals in environmental work is necessary for halting environmental degradation, one focus for contemporary environmental policy and political theory is the need for comprehensive individual lifestyle changes. Ecological Citizenship (EC) has been suggested within the field of political theory as an approach to realize personal responsibility for the environment. However, empirical research on whether EC can serve this purpose is still lacking. Based on a survey sent to 4,000 Swedish households, this paper makes the theory of EC empirically operational and explores whether, and to what extent, people in general hold values and beliefs in line with what is expected of EC, in order to shed light on the feasibility of cultivating ecological citizens in Sweden. The study concludes that a significant proportion of the respondents do demonstrate a value base consistent with EC, i.e., non-territorial altruism and the primacy of social justice. While additional tests and studies are needed, the results support the use of EC as a theoretical model for behavioral change.

  • 21.
    Jassim, Hassanean
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Industriellt och hållbart byggande.
    Lu, Weizhuo
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Industriellt och hållbart byggande.
    Olofsson, Thomas
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Industriellt och hållbart byggande.
    Predicting energy consumption and CO2 emissions of excavators in earthwork operations: An artificial neural network model2017Ingår i: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 9, nr 7, artikel-id 1257Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Excavators are one of the most energy-intensive elements of earthwork operations. Predicting the energy consumption and CO2 emissions of excavators is therefore critical in order to mitigate the environmental impact of earthwork operations. However, there is a lack of method for estimating such energy consumption and CO2 emissions, especially during the early planning stages of these activities. This research proposes a model using an artificial neural network (ANN) to predict an excavator's hourly energy consumption and CO2 emissions under different site conditions. The proposed ANN model includes five input parameters: digging depth, cycle time, bucket payload, engine horsepower, and load factor. The Caterpillar handbook's data, that included operational characteristics of twenty-five models of excavators, were used to develop the training and testing sets for the ANN model. The proposed ANN models were also designed to identify which factors from all the input parameters have the greatest impact on energy and emissions, based on partitioning weight analysis. The results showed that the proposed ANN models can provide an accurate estimating tool for the early planning stage to predict the energy consumption and CO2 emissions of excavators. Analyses have revealed that, within all the input parameters, cycle time has the greatest impact on energy consumption and CO2 emissions. The findings from the research enable the control of crucial factors which significantly impact on energy consumption and CO2 emissions.

  • 22.
    Jiangdong, Bao
    et al.
    Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, Arbetsvetenskap.
    Johansson, Jan
    Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, Arbetsvetenskap.
    Jingdong, Zhang
    Zhongnan University of Economics and Law.
    Comprehensive Evaluation on Employee Satisfaction of Mine Occupational Health and Safety Management System based on Improved AHP and 2-Tuple Linguistic Information2017Ingår i: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 9, nr 1, artikel-id 133Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    In order to comprehensively evaluate the employee satisfaction of mine occupational health and safety management system, an analytic method based on fuzzy analytic hierarchy process and 2-tuple linguistic model was established. Based on the establishment of 5 first-grade indicators and 20 second-grade ones, method of improved AHP and the time-orderedWeighted Averaging Operator (T-OWA) model is constructed. The results demonstrate that the employee satisfaction of the mine occupational health and safety management system is of the ‘general’ rank. The method including the evaluation of employee satisfaction and the quantitative analysis of language evaluation information ensures the authenticity of the language evaluation information

  • 23.
    Jiangdong, Bao
    et al.
    Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, Arbetsvetenskap.
    Johansson, Jan
    Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, Arbetsvetenskap.
    Zhang, Jingdong
    Research Center for Environment and Health, Zhongnan University of Economics and Law, Wuhan.
    An occupational disease assessment of the mining industry's occupational health and safety management system based on FMEA and an improved AHP model2017Ingår i: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 9, nr 1, artikel-id 94Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    In order to effectively analyze, control, and prevent occupational health risk and ensure the reliability of the weight, a method based on FMEA (failure mode and effects analysis) and an improved AHP (analytic hierarchy process) model was established. The occupational disease of the occupational health and safety management system (OHSAS18001) of the mining industry in the southwest of Hubei Province is taken as an example, the three most significant risk factors (dust, noise, and gas) are selected as the research objects, the FMEA method is used, an expert questionnaire is carried out to establish the comprehensive assessment matrix of each indicator according to the RPN (risk priority number) value, and, finally, a case study is conducted through the FMEA and the improved AHP model The results show that the occupational disease of the mining industry's occupational health and safety management system belongs to a "general" grade, which is in line with the physical examination results of the Center for Disease Control and Prevention of Ezhou City in 2015. The improved AHP and FMEA comprehensive assessment model of occupational disease is proved feasible. This method can be incorporated in the process management of the enterprise for the purpose of occupational disease prevention in advance and continuous improvement on the occupational health and safety of employees. Additionally, the area research on this integrated model should be optimized continually in actual situations.

  • 24.
    Johansson, Niklas
    et al.
    Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, Industriell Ekonomi.
    Roth, Eva
    Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, Industriell Ekonomi.
    Reim, Wiebke
    Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, Industriell Ekonomi.
    Smart and Sustainable eMaintenance: Capabilities for Digitalization of Maintenance2019Ingår i: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 11, nr 13, artikel-id 3553Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    In the era of Industry 4.0, researchers have begun to more thoroughly examine digital maintenance, i.e., eMaintenance, as digitization is increasingly affecting today’s society. This area is particularly interesting in the case of long-life components such as those used in the mining and transport industries. With eMaintenance, the correct type of maintenance can be utilized and the frequency for device maintenance can be reduced through real-time diagnosis. This leads to reduced costs for companies that implement eMaintenance as well as environmental benefits through improved resource utilization. Advantages of eMaintenance have been described in the literature; however, the capabilities necessary to implement eMaintenance lack proper research. The purpose of this study is to develop a framework that presents the required capabilities and their connection when an organization wants to implement eMaintenance, as well as to identify the outcomes of the transition to eMaintenance. The study is based on an exploratory case study that includes 26 interviews with a digital railway maintenance development company and its main customer, the traffic agency. The study findings are presented in a framework, including five main capabilities for implementing eMaintenance and its relationship within the noted industries. The required capabilities are, namely, digital technology development, organizational development, change of work routines, compliance with regulations, and assuring information security. The framework also analyzes the outcomes of implementing digital maintenance, which demonstrate a variety of economic, environmental, and social benefits.

  • 25.
    Johansson, Tim
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Industriellt och hållbart byggande.
    Segerstedt, Eugenia
    Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, Arbetsvetenskap.
    Olofsson, Thomas
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Industriellt och hållbart byggande.
    Jakobsson, Mats
    Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, Arbetsvetenskap.
    Revealing Social Values by 3D City Visualization in City Transformations2016Ingår i: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 8, nr 2, artikel-id 195Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Social sustainability is a widely used concept in urban planning research and practice. However, knowledge of spatial distributions of social values and aspects of social sustainability is required. Visualization of these distributions is also highly valuable, but challenging, and rarely attempted in sparsely populated urban environments in rural areas. This article presents a method that highlights social values in spatial models through 3D visualization, describes the methodology to generate the models, and discusses potential applications. The models were created using survey, building, infrastructure and demographic data for Gällivare, Sweden, a small city facing major transformation due to mining subsidence. It provides an example of how 3D models of important social sustainability indices can be designed to display citizens’ attitudes regarding their financial status, the built environment, social inclusion and welfare services. The models helped identify spatial variations in perceptions of the built environment that correlate (inter alia) with closeness to certain locations, gender and distances to public buildings. Potential uses of the model for supporting efforts by practitioners, researchers and citizens to visualize and understand social values in similar urban environments are discussed, together with ethical issues (particularly regarding degrees of anonymity) concerning its wider use for inclusive planning.

  • 26.
    Jørgensen, Dolly
    Department of Ecology and Environmental Science, Umeå University.
    Pigs and Pollards: Medieval Insights for UK Wood Pasture Restoration2013Ingår i: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 5, nr 2, s. 387-399Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    English wood pastures have become a target for ecological restoration, including the restoration of pollarded trees and grazing animals, although pigs have not been frequently incorporated into wood pasture restoration schemes. Because wood pastures are cultural landscapes, created through the interaction of natural processes and human practices, a historical perspective on wood pasture management practices has the potential to provide insights for modern restoration projects. Using a wide range of both written and artistic sources form the Middle Ages, this article argues that pigs were fed in wood pastures both during the mast season when acorns were available and at other times as grazing fields. Pollarded pedunculate oak (Quercus robur) likely dominated these sustainable cultural landscapes during the medieval period.

  • 27.
    Larsson, Johan
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Industriellt och hållbart byggande.
    Larsson, Lisa
    Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, Människa och teknik.
    Integration, Application and Importance of Collaboration in Sustainable Project Management2020Ingår i: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 12, nr 2, artikel-id 585Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The need to consider sustainability has substantially increased the complexity of implementing construction and infrastructure projects and new management practices have emerged during the past decade to tackle the global sustainability challenges, where the engagement and coordination of broader competences from stakeholders throughout the supply chain is required. This new project management paradigm has been accompanied by greater attention to the concept of collaborative business arrangements, often called partnering, that has emerged in construction and infrastructure projects to improve project deliveries. However, there are uncertainties about the optimal strategy to foster, integrate and maintain the required collaboration, particularly in sustainable management practices in infrastructure maintenance projects. This paper addresses these uncertainties, based on a single case study of an infrastructure maintenance contract involving an extensive collaborative business arrangement. The findings reveal that different collaborative practices affect diverse aspects of sustainable project management. Further, the extensive collaborative business arrangement has promoted sustainable deliveries based upon organizational learning and continuous improvements. Thus, this study offers an encouraging example of how extensive collaboration can be fostered and play a key role in sustainable project management practices.

  • 28.
    Larsson, Lisa
    et al.
    Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, Människa och teknik.
    Larsson, Johan
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Industriellt och hållbart byggande.
    Sustainable Development in Project-Based Industries: Supporting the Realization of Explorative Innovation2018Ingår i: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 10, nr 3, artikel-id 683Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Both exploitative and explorative innovations are needed for sustainable developmentin any industry, but balancing the two types is a delicate matter, and exploitation tends to bestrongly prioritized in many industries. This is typically evident in project-based industries (PBIs), which are characterized by a fragmented supply chain and the delivery of one-off solutions in business projects. Realizing explorative innovations in this context is complex due to the need to transfer new knowledge between the organization developing the innovations and actors in inter-organizational business projects. The aim of this paper is to highlight areas in the management of explorative innovations developed outside business projects, to increase the understanding of where the specific market setting of PBIs might necessitate an adapted approach for successful realization. A case study of three innovation projects in organizations operating in PBIs have been conducted. The findings confirm that the major challenges lie in the transition between development project and business project. We highlight three aspects linked to this transition that require a flexible management approach: the assignation and acceptance of suitable responsibilities and roles, flexible support for the innovation process, and system acceptance. The findings may provide guidance for actors in PBIs strategically seeking to promote sustainable development, and provide foundations for further research to develop support for explorative innovation.

  • 29.
    Madhloom, Huda M.
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi. Department of Civil Engineering, Al-Mustansiriayah University, Baghdad 1001, Iraq.
    Al-Ansari, Nadhir
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.
    Laue, Jan
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.
    Chabuk, Ali
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi. Department of Environment Engineering, College of Engineering, University of Babylon, Babylon 51002, Iraq.
    Modeling Spatial Distribution of Some Contamination within the Lower Reaches of Diyala River Using IDW Interpolation2018Ingår i: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 10, nr 1, artikel-id 22Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The aim of this research was to simulate the water quality along the lower course of theDiyala River using Geographic Information Systems (GIS) techniques. For this purpose, the samples were taken at 24 sites along the study area.  The parameters:  total dissolved solids (T.D.S), total suspended solids (T.S.S), iron (Fe), copper (Cu), chromium (Cr), and manganese (Mn) were considered. Water samples were collected on a monthly basis for a duration of five years. The adopted analyzing approach was tested by calculating the mean absolute error (MAE) and the correlation coefficient(R) between observed water samples and predicted results. The result showed a percentage error less than 10% and significant correlation at R > 89% for all pollutant indicators.  It was concluded that the accuracy of the applied model to simulate the river pollutants can decrease the number of monitoring station to 50%. Additionally, a distribution map for the concentrations’ results indicatedthat many of the major pollution indicators did not satisfy the river water quality standards.

  • 30.
    Mangold, Mikael
    et al.
    City Development, Research Institutes of Sweden, Gothenburg.
    Österbring, Magnus
    Architecture and Civil Engineering, Chalmers University of Technology, Gothenburg.
    Overland, Conny
    Department of Business Administration, University of Gothenburg, Gothenburg.
    Johansson, Tim
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Industriellt och hållbart byggande.
    Wallbaum, Holger
    Architecture and Civil Engineering, Chalmers University of Technology, Gothenburg.
    Building ownership, renovation investments, and energy performance: a study of multi-family dwellings in Gothenburg2018Ingår i: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 10, nr 5, artikel-id 1684Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The European building stock was renewed at a rapid pace during the period 1950-1975. In many European countries, the building stock from this time needs to be renovated, and there are opportunities to introduce energy efficiency measures in the renovation process. Information availability and increasingly available analysis tools make it possible to assess the impact of policy and regulation. This article describes methods developed for analyzing investments in renovation and energy performance based on building ownership and inhabitant socio-economic information developed for Swedish authorities, to be used for the Swedish national renovations strategy in 2019. This was done by analyzing measured energy usage and renovation investments made during the last 30 years, coupled with building specific official information of buildings and resident area characteristics, for multi-family dwellings in Gothenburg (N = 6319). The statistical analyses show that more costly renovations lead to decreasing energy usage for heating, but buildings that have been renovated during the last decades have a higher energy usage when accounting for current heating system, ownership, and resident socio-economic background. It is appropriate to include an affordability aspect in larger renovation projects since economically disadvantaged groups are over-represented in buildings with poorer energy performance.

  • 31.
    Matsakas, Leonidas
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Kemiteknik.
    Christakopoulos, Paul
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Kemiteknik.
    Ethanol Production from Enzymatically Treated Dried Food Waste Using Enzymes Produced On-Site2015Ingår i: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 7, nr 2, s. 1446-1458Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The environmental crisis and the need to find renewable fuel alternatives have made production of biofuels an important priority. At the same time, the increasing production of food waste is an important environmental issue. For this reason, production of ethanol from food waste is an interesting approach. Volumes of food waste are reduced and ethanol production does not compete with food production. In this work, we evaluated the possibility of using source-separated household food waste for the production of ethanol. To minimize the cost of ethanol production, the hydrolytic enzymes that are necessary for cellulose hydrolysis were produced in-house using the thermophillic fungus Myceliophthora thermophila. At the initial stage of the study, production of these thermophilic enzymes was studied and optimized, resulting in an activity of 0.28 FPU/mL in the extracellular broth. These enzymes were used to saccharify household food waste at a high dry material consistency of 30% w/w, followed by fermentation. Ethanol production reached 19.27 g/L with a volumetric productivity of 0.92 g/L·h, whereas only 5.98 g/L of ethanol was produced with a volumetric productivity of 0.28 g/L·h when no enzymatic saccharification was used.

  • 32.
    Nguyen, Phong Tung
    et al.
    Vietnam Academy for Water Resources, Hanoi 100000, Vietnam.
    Ha, Duong Hai
    Institute for Water and Environment, Hanoi 100000, Vietnam.
    Nguyen, Huu Duy
    Faculty of Geography, VNU University of Science, Vietnam National University, 334 Nguyen Trai, Hanoi 100000, Vietnam.
    Phong, Tran Van
    Institute of Geological Sciences, Vietnam Academy of Sciences and Technology, 84 Chua Lang Street, Dong da, Hanoi 100000, Vietnam.
    Trinh, Phan Trong
    Institute of Geological Sciences, Vietnam Academy of Sciences and Technology, 84 Chua Lang Street, Dong da, Hanoi 100000, Vietnam.
    Al-Ansari, Nadhir
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.
    Le, Hiep Van
    University of Transport Technology, Hanoi 100000, Vietnam.
    Pham, Binh Thai
    University of Transport Technology, Hanoi 100000, Vietnam.
    Ho, Lanh Si
    Institute of Research and Development, Duy Tan University, Da Nang 550000, Vietnam.
    Prakash, Indra
    Department of Science & Technology, Bhaskarcharya Institute for Space Applications and Geo-Informatics (BISAG), Government of Gujarat, Gandhinagar 382002, India.
    Improvement of Credal Decision Trees Using Ensemble Frameworks for Groundwater Potential Modeling2020Ingår i: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 12, nr 7, artikel-id 2622Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Groundwater is one of the most important sources of fresh water all over the world, especially in those countries where rainfall is erratic, such as Vietnam. Nowadays, machine learning (ML) models are being used for the assessment of groundwater potential of the region. Credal decision trees (CDT) is one of the ML models which has been used in such studies. In the present study, the performance of the CDT has been improved using various ensemble frameworks such as Bagging, Dagging, Decorate, Multiboost, and Random SubSpace. Based on these methods, five hybrid models, namely BCDT, Dagging-CDT, Decorate-CDT, MBCDT, and RSSCDT, were developed and applied for groundwater potential mapping of DakLak province of Vietnam. Data of 227 groundwater wells of the study area were utilized for the construction and validation of the models. Twelve groundwater potential conditioning factors, namely rainfall, slope, elevation, river density, Sediment Transport Index (STI), curvature, flow direction, aspect, soil, land use, Topographic Wetness Index (TWI), and geology, were considered for the model studies. Various statistical measures, including area under receiver operating characteristic (AUC) curve, were applied to validate and compare the performance of the models. The results show that performance of the hybrid CDT ensemble models MBCDT (AUC = 0.770), BCDT (AUC = 0.731), Dagging-CDT (AUC = 0.763), Decorate-CDT (AUC = 0.750), and RSSCDT (AUC = 0.766) improved significantly in comparison to the single CDT (AUC = 0.722) model. Therefore, these developed hybrid models can be applied for better ground water potential mapping and groundwater resources management of the study area as well as other regions of the world.

  • 33.
    Nguyen, Viet-Tien
    et al.
    Institute of Geological Sciences, Vietnam Academy of Science and Technology, Dong da, Hanoi, Vietnam. Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Cau Giay, Hanoi, Vietnam.
    Tran, Trong Hien
    Institute of Geological Sciences, Vietnam Academy of Science and Technology, Dong da, Hanoi, Vietnam.
    Ha, Ngoc Anh
    Institute of Geological Sciences, Vietnam Academy of Science and Technology, Dong da, Hanoi, Vietnam.
    Ngo, Van Liem
    Faculty of Geography, VNU University of Science, Vietnam National University, Hanoi, Thanh Xuan, Hanoi, Vietnam.
    Al-Ansari, Nadhir
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.
    Tran, Van Phong
    Institute of Geological Sciences, Vietnam Academy of Science and Technology, Dong da, Hanoi, Vietnam.
    Nguyen, Huu Duy
    Faculty of Geography, VNU University of Science, Vietnam National University, Hanoi, Thanh Xuan, Hanoi, Vietnam.
    Malek, M. A.
    Institute of Sustainable Energy, University Tenaga Nasional, Selangor, Malaysia.
    Amini, Ata
    Kurdistan Agricultural and Natural Resources Research and Education Center, AREEO, Sanandaj, Iran.
    Prakash, Indra
    Department of Science and Technology, Bhaskarcharya Institute for Space Applications and Geo-Informatics (BISAG), Government of Gujarat, Gandhinagar, India.
    Ho, Lanh Si
    Institute of Research and Development, Duy Tan University, Da Nang, Vietnam.
    Pham, Binh Thai
    University of Transport Technology, Hanoi, Vietnam.
    GIS Based Novel Hybrid Computational Intelligence Models for Mapping Landslide Susceptibility: A Case Study at Da Lat City, Vietnam2019Ingår i: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 11, nr 24, artikel-id 7118Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Landslides affect properties and the lives of a large number of people in many hilly parts of Vietnam and in the world. Damages caused by landslides can be reduced by understanding distribution, nature, mechanisms and causes of landslides with the help of model studies for better planning and risk management of the area. Development of landslide susceptibility maps is one of the main steps in landslide management. In this study, the main objective is to develop GIS based hybrid computational intelligence models to generate landslide susceptibility maps of the Da Lat province, which is one of the landslide prone regions of Vietnam. Novel hybrid models of alternating decision trees (ADT) with various ensemble methods, namely bagging, dagging, MultiBoostAB, and RealAdaBoost, were developed namely B-ADT, D-ADT, MBAB-ADT, RAB-ADT, respectively. Data of 72 past landslide events was used in conjunction with 11 landslide conditioning factors (curvature, distance from geological boundaries, elevation, land use, Normalized Difference Vegetation Index (NDVI), relief amplitude, stream density, slope, lithology, weathering crust and soil) in the development and validation of the models. Area under the receiver operating characteristic (ROC) curve (AUC), and several statistical measures were applied to validate these models. Results indicated that performance of all the models was good (AUC value greater than 0.8) but B-ADT model performed the best (AUC= 0.856). Landslide susceptibility maps generated using the proposed models would be helpful to decision makers in the risk management for land use planning and infrastructure development.

  • 34.
    Parida, Vinit
    et al.
    Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, Industriell Ekonomi. University of Vaasa, Vaasa, Finland.
    Sjödin, David
    Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, Industriell Ekonomi.
    Reim, Wiebke
    Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, Industriell Ekonomi.
    Reviewing Literature on Digitalization, Business Model Innovation, and Sustainable Industry: Past Achievements and Future Promises2019Ingår i: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 11, nr 2, artikel-id 391Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Digitalization is revolutionizing the way business is conducted within industrial value chains through the use of Internet of Things (IoT) technologies, intensive data exchange and predictive analytics. However, technological application on its own is not enough; profiting from digitalization requires business model innovation such as making the transition to advanced service business models. Yet, many research gaps remain in analyzing how industrial companies can leverage digitalization to transform their business models to achieve sustainability benefits. Specifically, challenges related to value creation, value delivery, and value capture components of business model innovation need further understanding as well as how alignment of these components drive sustainable industry initiatives. Thus, this special issue editorial attempts to take stock of the emerging research field through a literature review and providing a synthesis of special issue contributions. In doing so, we contribute by developing a framework that communicates and sets the direction for future research by linking digitalization, business model innovation, and sustainability in industrial settings.

  • 35.
    Pericault, Youen
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Arkitektur och vatten.
    Kärrman, Erik
    RISE Built Environment, Research Institutes of Sweden, Stockholm.
    Viklander, Maria
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Arkitektur och vatten.
    Hedström, Annelie
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Arkitektur och vatten.
    Expansion of Sewer, Water and District Heating Networks in Cold Climate Regions: an Integrated Sustainability Assessment2018Ingår i: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 10, nr 10, artikel-id 3743Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    This study presents an integrated sustainability assessment of technical alternatives for water and heating services provision in suburban areas affected by a cold climate. Each alternative combines a drinking water supply, sewerage (gravity or low-pressure), pipe freeze protection (deep burial or shallow burial with heat tracing) and heating solution (district heating or geothermal heat pumps). An innovative freeze protection option was considered, in which low-temperature district heating (LTDH) is used to heat trace shallow sewer and water pipes. First, the performance of each alternative regarding seven sustainability criteria was evaluated on a projected residential area in Sweden using a systems analysis approach. A multi-criteria method was then applied to propose a sustainability ranking of the alternatives based on a set of weights obtained from local stakeholders. The alternative with a deep buried gravity sewer and geothermal heat pumps was found to have the highest sustainability score in the case study. In the sensitivity analysis, the integrated trench solution with a gravity sewer, innovative heat tracing and LTDH was found to potentially top the sustainability ranking if geothermal energy was used as the district heating source, or if the weight of the cost criterion increased from 24% to 64%. The study highlights the need for integrated decision-making between different utility providers as an integrated solution can represent sustainability gains.

  • 36.
    Pettersson, Maria
    et al.
    Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, Samhällsvetenskap.
    Söderholm, Patrik
    Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, Samhällsvetenskap.
    Industrial pollution control and efficient licensing processes: the case of Swedish regulatory design2014Ingår i: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 6, nr 8, s. 5401-5422Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Industrial pollution accounts for a large proportion of global pollution, and in the European Union, an integrated pollution and prevention approach based on individual performance standards has been implemented to regulate emissions from industrial plants. Crucial for the assessment of the licensing conditions are the Best Available Technique (BAT) requirements, which should be set in accordance with the recently introduced Industrial Emissions Directive (IED). In this paper, we review and assess the licensing of industrial plants in one of the Member States, namely Sweden. Specifically, we discuss how the existing regulations (including the IED) manage to address potential trade-offs between important regulatory design issues, such as flexibility, predictability and the need to provide continuous incentives for environmental improvements. The analysis indicates that while the EU regulations provide flexibility in terms of the choice of compliance measures, in Sweden, it enters an existing regulatory framework that adds a lot of uncertainty with respect to the outcome of the licensing processes. An important challenge for the implementation of the IED is to implement performance standards that lead to continuous incentives to improve environmental performance in industrial sectors without, at the same time, adding new uncertainties. While standards ideally should be both flexible and predictable, achieving one of these criteria may often come at the expense of the other.

  • 37.
    Pham, Binh Thai
    et al.
    Division of Computational Mathematics and Engineering, Institute for Computational Science, Ton Duc Thang University, Ho Chi Minh, Vietnam.Faculty of Civil Engineering, Ton Duc Thang University, Ho Chi Minh, Vietnam.
    Qi, Chongchong
    School of Resources and Safety Engineering, Central South University, Changsha, China.
    Ho, Lanh Si
    Department of Civil and Environmental Engineering, Graduate School of Engineering, Hiroshima University, Hiroshima, Japan.
    Nguyen-Thoi, Trung
    Division of Computational Mathematics and Engineering, Institute for Computational Science, Ton Duc Thang University, Ho Chi Minh, Vietnam.Faculty of Civil Engineering, Ton Duc Thang University, Ho Chi Minh, Vietnam.
    Al-Ansari, Nadhir
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.
    Nguyen, Manh Duc
    University of Transport and Communications, Hanoi, Vietnam.
    Nguyen, Huu Duy
    Faculty of Geography, VNU University of Science, Vietnam National University, Hanoi, Vietnam.
    Ly, Hai-Bang
    University of Transport and Technology, Hanoi , Vietnam.
    Le, Hiep Van
    Institute of Research and Development, Duy Tan University, Da Nang, Vietnam.
    Prakash, Indra
    Department of Science & Technology, Bhaskarcharya Institute for Space Applications and Geo-Informatics (BISAG), Government of Gujarat, Gandhinagar, India.
    A Novel Hybrid Soft Computing Model Using Random Forest and Particle Swarm Optimization for Estimation of Undrained Shear Strength of Soil2020Ingår i: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 12, nr 6, artikel-id 2218Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Determination of shear strength of soil is very important in civilengineering for foundation design, earth and rock fill dam design, highway and airfield design,stability of slopes and cuts, and in the design of coastal structures. In this study, a novel hybrid softcomputing model (RF-PSO) of random forest (RF) and particle swarm optimization (PSO) wasdeveloped and used to estimate the undrained shear strength of soil based on the clay content (%),moisture content (%), specific gravity (%), void ratio (%), liquid limit (%), and plastic limit (%). Inthis study, the experimental results of 127 soil samples from national highway project Hai Phong-Thai Binh of Vietnam were used to generate datasets for training and validating models. Pearsoncorrelation coefficient (R) method was used to evaluate and compare performance of the proposedmodel with single RF model. The results show that the proposed hybrid model (RF-PSO) achieveda high accuracy performance (R = 0.89) in the prediction of shear strength of soil. Validation of themodels also indicated that RF-PSO model (R = 0.89 and Root Mean Square Error (RMSE) = 0.453) issuperior to the single RF model without optimization (R = 0.87 and RMSE = 0.48). Thus, theproposed hybrid model (RF-PSO) can be used for accurate estimation of shear strength which canbe used for the suitable designing of civil engineering structures.

  • 38.
    Ranängen, Helena
    et al.
    Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, Industriell Ekonomi.
    Cöster, Mathias
    Department of Business Studies, Uppsala University.
    Isaksson, Raine
    Department of Engineering Sciences, Quality Sciences, Uppsala Universit.
    Garvare, Rickard
    Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, Industriell Ekonomi.
    From global goals and planetary boundaries to public governance: A framework for prioritizing organizational sustainability activities2018Ingår i: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 10, nr 8, artikel-id 2741Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Background: A particular challenge in the work to realize the global goals for sustainable development is to find ways for organizations to identify and prioritize organizational activities that address these goals. There are also several sustainability initiatives, guidelines and tools to consider when planning, working with and reporting on sustainable development. Although progress has been made, little has been written about how organizations rise to and manage the challenge. The paper explores how organizations address sustainable development, which sustainability aspects they prioritize and whether previous research can improve the priority process by using materiality analysis approach. Methods: A case study approach was chosen. Data was collected by interactive workshops and documentation. The participating organizations were two Swedish municipalities; Results: The municipalities have introduced a number of sustainability aspects into their organizational governance, especially in terms of society, human rights and the environment. A materiality analysis was conducted to determine the relevance and significance of sustainability aspects. The result shows that climate action, biodiversity and freshwater use are aspects that should be prioritized; Conclusion: The materiality analysis methodology chosen for prioritizing of sustainability aspects was useful and easy to work with. However, the sustainability aspect matrix and the risk assessment have to be updated regularly in order to form an effective base for the materiality analysis.

  • 39.
    Reim, Wiebke
    et al.
    Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, Industriell Ekonomi.
    Parida, Vinit
    Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, Industriell Ekonomi. Department of Management, University of Vaasa, Vaasa, Finland.
    Sjödin, David
    Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, Industriell Ekonomi.
    Circular Business Models for the Bio-Economy: A Review and New Directions for Future Research2019Ingår i: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 11, nr 9, artikel-id 2558Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Circular and bio-economy represents a political and industrial initiative to ensure that our society can rely on renewable biological sources while achieving economic growth. However, there is a need to critical review how realistic and feasible such initiatives are towards fulfilling the promised benefits of this economy. The literature on bio-economy often discusses the importance of innovative business models and their role in a successful shift to a bio-economy. Still, much of the discussion that is related to circular business models is fragmented and immature. Therefore, the purpose of this study is to conduct a systematic literature review of circular business model activities and the barriers to a bio-economy. Further, this review provides future research directions for a shift to a bio-economy. This study is based on a systematic review of 42 scientific journal articles and book chapters on a forest-based bio-economy. The business model canvas is used to provide a structured aggregation of the existing circular business models activities being used by the forestry sector. In addition, we develop a framework that describes the barriers to bio-economy-based circular business models and suggest new directions for future research. The study highlights the need for alignment among the elements of a business model as a key condition for its successful implementation in a bio-economy

  • 40.
    Sandberg, Marcus
    et al.
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Industriellt och hållbart byggande.
    Mukkavaara, Jani
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Industriellt och hållbart byggande.
    Shadram, Farshid
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Industriellt och hållbart byggande.
    Olofsson, Thomas
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Industriellt och hållbart byggande.
    Multidisciplinary Optimization of Life-Cycle Energy and Cost Using a BIM-Based Master Model2019Ingår i: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 11, nr 1, artikel-id 286Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Virtual design tools and methods can aid in creating decision bases, but it is a challenge to balance all the trade-offs between different disciplines in building design. Optimization methods are at hand, but the question is how to connect and coordinate the updating of the domain models of each discipline and centralize the product definition into one source instead of having several unconnected product definitions. Building information modelling (BIM) features the idea of centralizing the product definition to a BIM-model and creating interoperability between models from different domains and previous research reports on different applications in a number of fields within construction. Recent research features BIM-based optimization, but there is still a question of knowing how to design a BIM-based process using neutral file formats to enable multidisciplinary optimization of life-cycle energy and cost. This paper proposes a framework for neutral BIM-based multidisciplinary optimization. The framework consists of (1) a centralized master model, from which different discipline-specific domain models are generated and evaluated; and (2) an optimization algorithm controlling the optimization loop. Based on the proposed framework, a prototype was developed and used in a case study of a Swedish multifamily residential building to test the framework’s applicability in generating and optimizing multiple models based on the BIM-model. The prototype was developed to enhance the building’s sustainability performance by optimizing the trade-off between the building’s life-cycle energy (LCE) and life-cycle cost (LCC) when choosing material for the envelope. The results of the case study demonstrated the applicability of the framework and prototype in optimizing the trade-off between conflicting objectives, such as LCE and LCC, during the design process.

  • 41.
    Surendran, U.
    et al.
    Centre for Water Resources Development and Management (CWRDM), Kerala, India.
    Sushanth, C. M.
    Centre for Water Resources Development and Management (CWRDM), Kerala, India.
    Joseph, E. J.
    Centre for Water Resources Development and Management (CWRDM), Kerala, India.
    Al-Ansari, Nadhir
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.
    Yaseen, Zaher Mundher
    Sustainable Developments in Civil Engineering Research Group, Faculty of Civil Engineering, Ton Duc Thang University, Ho Chi Minh City, Vietnam.
    FAO CROPWAT Model-Based Irrigation Requirements for Coconut to Improve Crop and Water Productivity in Kerala, India2019Ingår i: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 11, nr 18, artikel-id 5132Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The irrigation requirements for coconut in Kerala are general in nature. This study determined the irrigation requirements for coconut, using CROPWAT based on agro-ecological zones (AEZs) for proposing the recommendations. The irrigation recommendations are generated based on the climatic, soil, and crop characteristics. The results showed that the irrigation requirements varied with the locations. Overall, for the state of Kerala, the irrigation requirements varied from 350 to 900 L of water per coconut palm, with the irrigation intervals ranging from three to nine days based on the AEZs. Moreover, this study also confirmed the variation of the water requirements observed within the districts. The quantity of water required per palm varied between 115 to 200 liters per day (LPD) per palm, which is lower than the existing recommendations of 175 to 300 LPD per palm. The proposed irrigation requirements appraised with the presently followed recommendations of the Kerala state, and its advantages discussed for improving the crop and water productivity. In nutshell, if the current recommendation is adopted, 30% of the water used for irrigation can be saved, as well as leading to an improvement in crop production.

  • 42.
    Söderholm, Kristina
    et al.
    Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, Samhällsvetenskap.
    Bergquist, Ann-Kristin
    Umeå universitet.
    Growing green and competitive: a case study of a Swedish pulp mill2013Ingår i: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 5, nr 5, s. 1789-1805Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The experiences of past efforts of industrial pollution control while maintaining competitiveness should be of great value to research and policy practice addressing sustainability issues today. In this article, we analyze the environmental adaptation of the Swedish pulp industry during the period 1970–1990 as illustrated by the sulfite pulp producer Domsjö mill. We investigate how this company managed to adapt to heavy transformation pressure from increasing international competition in combination with strict national environmental regulations during the 1960s to the early 1990s. In line with the so-called Porter hypothesis, the company was able to coordinate the problems that were environmental in nature with activities aiming at production efficiency goals and the development of new products. Swedish environmental agencies and legislation facilitated this “win-win” situation by a flexible but still challenging regulatory approach towards the company. From the early 1990s and onwards, the greening of the pulp industry was also a result of increased market pressure for green paper products.

  • 43.
    Söderholm, Kristina
    et al.
    Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, Samhällsvetenskap.
    Wihlborg, Elin
    Department of Management and Engineering, Division of Political Science, Linköping University.
    Striving for Sustainable Development and the Coordinating Role of the Central Government: Lessons from Swedish Housing Policy2016Ingår i: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 8, nr 8, artikel-id 827Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Housing plays an important role in the development of welfare policies and also often in achieving sustainability goals. There exists, however, implementation gaps between policies and practices in urban development and housing. Here it should be possible to draw lessons from policy implementations in the past. In this article we explore the strategies of the Swedish central government in implementing a social housing policy in the mid-20th century. The policy was successfully implemented in that it resulted in the rapid expansion and modernisation of the Swedish apartment stock in the late 1960s and early 1970s, and acute housingshortages and poor housing standards were overcome. The main lesson learned from the Swedish case study is the critical role of the central government in implementation throughthe strategic coordination of policy aims, instruments, stakeholders and interests throughout the implementation process. Although the central government could have used hard, almost authoritarian policy instruments to force the realisation of the new policy, it mainly used soft policy tools and focused on coordination. In the contemporary networked governance setting, the central government, like no other player, still has the potential to guide and coordinate implementation processes for the realization of sustainable housing visions.

  • 44.
    Wan, Xing
    et al.
    School of Business Administration, Nanjing University of Finance and Economics.
    Cenamor, Javier
    Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, Innovation och Design. School of Economics and Management, Lund University.
    Chen, Jing
    School of Business Administration, Nanjing University of Finance and Economics.
    Exploring performance determinants of China's cable operators and OTT service providers in the era of digital convergence-From the perspective of an industry platform2017Ingår i: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 9, nr 12, artikel-id 2247Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    This paper investigates key determinants of business performance in China's video industry in the era of digital convergence. Specifically, we analyze China's OTT (over-the-top) service providers and cable operators based on the perspective of an industry platform, which acts as the core module of a business ecosystem and is capable of facilitating and coordinating interdependence among different agents. Panel data models are established to empirically explore what factors impact the performance of these two types of players. The findings demonstrate that both platform use and the size of an installed base are crucial for the determinants of the performance of OTT service providers and cable operators. An online video platform can also benefit from an increasing proportion of mobile viewers by implementing a multi-screen strategy. Further, an OTT service provider can profit from the interaction between its installed base and UGC (user-generated content), while cable operators can take advantage of positive feedback between their demand side and supply side.

  • 45.
    Wan, Xing
    et al.
    School of Business Administration, Nanjing University of Finance and Economics.
    Cenamor, Javier
    Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, Innovation och Design.
    Parker, Geoffrey
    Thayer School of Engineering, Dartmouth College, Hanover, NH.
    Van Alstyne, Marshall
    Questrom School of Business, Boston University.
    Unraveling Platform Strategies: A Review from an Organizational Ambidexterity Perspective2017Ingår i: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 9, nr 5, artikel-id 734Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Platform strategies, which highlight the interdependence in and evolution of business ecosystems, are increasingly relevant for sustainable business models in the digital era. So far, platform research has existed as a fragmented body of insights from different fields, but an integrated theoretical perspective can lead to a more coherent understanding of the research overall. Organizational ambidexterity emphasizes the balance between exploration and exploitation, which is particularly conducive to understanding the sustainability of a firm. Using an organizational ambidexterity perspective, the authors analyze five platform strategies: pricing, openness, integration, differentiation, and envelopment. This paper provides a systematic review of the theoretical and empirical studies in leading management, economics, and information systems journals from 2000 to 2016. The findings show that platform strategies can help platform owners achieve ambidexterity by domain, temporal, and organizational separation. Finally, this paper proposes an agenda for future research.

  • 46.
    Yaseen, Zaher Mundher
    et al.
    Sustainable Developments in Civil Engineering Research Group, Faculty of Civil Engineering, Ton Duc Thang University, Ho Chi Minh City, Vietnam.
    Ali, Zainab Hasan
    Civil Engineering Department, College of Engineering, University of Diyala, Baquba, Iraq.
    Salih, Sinan Q.
    Institute of Research and Development, Duy Tan University, Da Nang, Vietnam.
    Al-Ansari, Nadhir
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.
    Prediction of Risk Delay in Construction Projects Using a Hybrid Artificial Intelligence Model2020Ingår i: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 12, nr 4, artikel-id 1514Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Project delays are the major problems tackled by the construction sector owing to the associated complexity and uncertainty in the construction activities. Artificial Intelligence (AI) models have evidenced their capacity to solve dynamic, uncertain and complex tasks. The aim of this current study is to develop a hybrid artificial intelligence model called integrative Random Forest classifier with Genetic Algorithm optimization (RF-GA) for delay problem prediction. At first, related sources and factors of delay problems are identified. A questionnaire is adopted to quantify the impact of delay sources on project performance. The developed hybrid model is trained using the collected data of the previous construction projects. The proposed RF-GA is validated against the classical version of an RF model using statistical performance measure indices. The achieved results of the developed hybrid RF-GA model revealed a good resultant performance in terms of accuracy, kappa and classification error. Based on the measured accuracy, kappa and classification error, RF-GA attained 91.67%, 87% and 8.33%, respectively. Overall, the proposed methodology indicated a robust and reliable technique for project delay prediction that is contributing to the construction project management monitoring and sustainability. 

  • 47.
    Yaseen, Zaher Mundher
    et al.
    Sustainable Developments in Civil Engineering Research Group, Faculty of Civil Engineering, Ton Duc Thang University.
    Ameen, Ameen Mohammed Salih
    Department of water resources engineering, Faculty of civil engineering, University of Baghdad.
    Aldlemy, Mohammed Suleman
    Department of Mechanical Engineering, Collage of Mechanical Engineering Technology.
    Ali, Mumtaz
    Deakin-SWU Joint Research Centre on Big Data, School of Information Technology, Deakin University.
    Afan, Haitham Abdulmohsin
    Institute of Research and Development, Duy Tan University.
    Zhu, Senlin
    State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing Hydraulic Research Institute.
    Al-Janabi, Ahmed Mohammed Sami
    Department of Civil Engineering, Faculty of Engineering, University Putra Malaysia.
    Al-Ansari, Nadhir
    Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Geoteknologi.
    Tiyasha, Tiyasha
    Faculty of Civil Engineering, Ton Duc Thang University.
    Tao, Hai
    Department of Computer science, Baoji University of Arts and Sciences.
    State-of-the Art-Powerhouse, Dam Structure, and Turbine Operation and Vibrations2020Ingår i: Sustainability, ISSN 2071-1050, E-ISSN 2071-1050, Vol. 12, nr 4, artikel-id 1676Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Dam and powerhouse operation sustainability is a major concern from the hydraulic engineering perspective. Powerhouse operation is one of the main sources of vibrations in the dam structure and hydropower plant; thus, the evaluation of turbine performance at different water pressures is important for determining the sustainability of the dam body. Draft tube turbines run under high pressure and suffer from connection problems, such as vibrations and pressure fluctuation. Reducing the pressure fluctuation and minimizing the principal stress caused by undesired components of water in the draft tube turbine are ongoing problems that must be resolved. Here, we conducted a comprehensive review of studies performed on dams, powerhouses, and turbine vibration, focusing on the vibration of two turbine units: Kaplan and Francis turbine units. The survey covered several aspects of dam types (e.g., rock and concrete dams), powerhouse analysis, turbine vibrations, and the relationship between dam and hydropower plant sustainability and operation. The current review covers the related research on the fluid mechanism in turbine units of hydropower plants, providing a perspective on better control of vibrations. Thus, the risks and failures can be better managed and reduced, which in turn will reduce hydropower plant operation costs and simultaneously increase the economical sustainability. Several research gaps were found, and the literature was assessed to provide more insightful details on the studies surveyed. Numerous future research directions are recommended.

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