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Juntti, Ulla
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Publications (10 of 48) Show all publications
Garmabaki, A. S., Naseri, M., Odelius, J., Juntti, U., Famurewa, S., Barabady, J., . . . Strandberg, G. (2024). Risk Assessment of Climate Change Impacts on Railway Infrastructure Asset. In: International Congress and Workshop on Industrial AI and eMaintenance 2023: . Paper presented at 7th International Congress and Workshop on Industrial AI and eMaintenance, IAI 2023, Luleå, Sweden, June 13-15, 2023 (pp. 773-788). Springer Science and Business Media Deutschland GmbH
Open this publication in new window or tab >>Risk Assessment of Climate Change Impacts on Railway Infrastructure Asset
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2024 (English)In: International Congress and Workshop on Industrial AI and eMaintenance 2023, Springer Science and Business Media Deutschland GmbH , 2024, p. 773-788Conference paper, Published paper (Other academic)
Place, publisher, year, edition, pages
Springer Science and Business Media Deutschland GmbH, 2024
Series
Lecture Notes in Mechanical Engineering, ISSN 2195-4356, E-ISSN 2195-4364
National Category
Infrastructure Engineering Reliability and Maintenance
Research subject
Operation and Maintenance Engineering
Identifiers
urn:nbn:se:ltu:diva-103883 (URN)10.1007/978-3-031-39619-9_57 (DOI)2-s2.0-85181981308 (Scopus ID)
Conference
7th International Congress and Workshop on Industrial AI and eMaintenance, IAI 2023, Luleå, Sweden, June 13-15, 2023
Funder
Vinnova, 2019-03181Vinnova, 2021-02456
Available from: 2024-01-23 Created: 2024-01-23 Last updated: 2024-02-01Bibliographically approved
Jägare, V., Juntti, U. & Garmabaki, A. H. (2024). Roadmap for implementing climate adaptation innovations in railway. International Journal of Systems Assurance Engineering and Management
Open this publication in new window or tab >>Roadmap for implementing climate adaptation innovations in railway
2024 (English)In: International Journal of Systems Assurance Engineering and Management, ISSN 0975-6809, E-ISSN 0976-4348Article in journal (Refereed) Epub ahead of print
Place, publisher, year, edition, pages
Springer Nature, 2024
Keywords
railway infrastructure, climate adaptation, system innovation, implementation, business models, regulations
National Category
Other Environmental Engineering
Research subject
Operation and Maintenance Engineering
Identifiers
urn:nbn:se:ltu:diva-110716 (URN)10.1007/s13198-024-02581-8 (DOI)001352523800001 ()2-s2.0-85208983648 (Scopus ID)
Funder
Vinnova, 2021-02456
Available from: 2024-11-14 Created: 2024-11-14 Last updated: 2025-03-27
Jägare, V., Juntti, U. & Garmabaki, A. H. (2024). System Innovation Challenges for Climate Adaptation. In: International Congress and Workshop on Industrial AI and eMaintenance 2023: . Paper presented at 7th International Congress and Workshop on Industrial AI and eMaintenance, IAI 2023, Luleå, Sweden, June 13-15, 2023 (pp. 707-721). Springer Science and Business Media Deutschland GmbH
Open this publication in new window or tab >>System Innovation Challenges for Climate Adaptation
2024 (English)In: International Congress and Workshop on Industrial AI and eMaintenance 2023, Springer Science and Business Media Deutschland GmbH , 2024, p. 707-721Conference paper, Published paper (Other academic)
Place, publisher, year, edition, pages
Springer Science and Business Media Deutschland GmbH, 2024
Series
Lecture Notes in Mechanical Engineering, ISSN 2195-4356, E-ISSN 2195-4364
National Category
Civil Engineering
Research subject
Operation and Maintenance Engineering
Identifiers
urn:nbn:se:ltu:diva-103889 (URN)10.1007/978-3-031-39619-9_52 (DOI)2-s2.0-85181983538 (Scopus ID)
Conference
7th International Congress and Workshop on Industrial AI and eMaintenance, IAI 2023, Luleå, Sweden, June 13-15, 2023
Funder
Vinnova, 2022-00270
Available from: 2024-01-23 Created: 2024-01-23 Last updated: 2024-01-23Bibliographically approved
Karim, R., Jägare, V., Juntti, U., Glover, C. & Lund Cipolla, A. (2020). The roadmap for digitalised operation and maintenance of railway: ePilot - A railway collaboration platform. Luleå: Luleå University of Technology
Open this publication in new window or tab >>The roadmap for digitalised operation and maintenance of railway: ePilot - A railway collaboration platform
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2020 (English)Report (Other (popular science, discussion, etc.))
Place, publisher, year, edition, pages
Luleå: Luleå University of Technology, 2020. p. 63
National Category
Other Civil Engineering
Research subject
Operation and Maintenance Engineering
Identifiers
urn:nbn:se:ltu:diva-77446 (URN)978-91-7790-550-9 (ISBN)978-91-7790-551-6 (ISBN)
Available from: 2020-01-17 Created: 2020-01-17 Last updated: 2024-03-27Bibliographically approved
Jägare, V., Karim, R., Juntti, U. & Söderholm, P. (2019). A framework for testbed concept in railway. In: P.O. Larsson-Kråik; A. Ahmadi (Ed.), Proceedings of the International Heavy Haul Association STS Conference (IHHA 2019): . Paper presented at International Heavy Haul STS Conference (IHHA 2019), Narvik, Norway, June 12-14, 2019 (pp. 986). International Heavy Haul Association (IHHA)
Open this publication in new window or tab >>A framework for testbed concept in railway
2019 (English)In: Proceedings of the International Heavy Haul Association STS Conference (IHHA 2019) / [ed] P.O. Larsson-Kråik; A. Ahmadi, International Heavy Haul Association (IHHA) , 2019, p. 986-Conference paper, Poster (with or without abstract) (Refereed)
Abstract [en]

One major prerequisite for an effective implementation and innovation process is the enablement and provision of a collaborative environment. A common area for multi-organisational collaboration together with a technology platform, enabling data sharing and Big Data Analytics, has been developed called ‘Testbed Railway’ with a corresponding framework ‘Railway 4.0’. Testbed Railway can be used to strengthen the railway industry's adaptability and competitiveness by developing and providing a testbed for research and innovation in the rail industry, nationally and internationally.

Place, publisher, year, edition, pages
International Heavy Haul Association (IHHA), 2019
Keywords
Testbed Railway, Implementation of innovations, Multi-organisational collaboration
National Category
Transport Systems and Logistics Other Civil Engineering
Research subject
Operation and Maintenance
Identifiers
urn:nbn:se:ltu:diva-75968 (URN)
Conference
International Heavy Haul STS Conference (IHHA 2019), Narvik, Norway, June 12-14, 2019
Funder
Swedish Transport AdministrationLuleå Railway Research Centre (JVTC)
Note

ISBN för värdpublikation: 9780911382709; 9780911382716 

Available from: 2019-09-11 Created: 2019-09-11 Last updated: 2021-06-08Bibliographically approved
Jägare, V., Karim, R., Söderholm, P., Larsson-Kråik, P.-O. & Juntti, U. (2019). Change management in digitalised operation and maintenance of railway. In: PROCEEDINGS: International Heavy Haul Association Conference June 2019: . Paper presented at International Heavy Haul Association (IHHA) STS 2019, 10-14th June 2019, Narvik, Norway. (pp. 904-911).
Open this publication in new window or tab >>Change management in digitalised operation and maintenance of railway
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2019 (English)In: PROCEEDINGS: International Heavy Haul Association Conference June 2019, 2019, p. 904-911Conference paper, Published paper (Refereed)
Abstract [en]

Globally, railway is experiencing a major technology transformation (or paradigm shift), triggered by the enhanced utilisation of digital technology. This technological transformation affects not only the technical systems, i.e. railway infrastructure and rolling stock, but also regulations, organisations, processes,and individuals. Hence, hardware, software, but also liveware (i.e. humans) are affected. Today, the digitalisation of railway is characterised by digital services. There are also a range of challenges, e.g. data acquisition,transformation, modelling, processing, visualisation, safety, security, quality, and information assurance. To deal with these challenges, the railway industry needs to define strategies, which enable a smooth transformation of the existing configuration to a digitalised system. Digital railway requires a holistic change management approach based on system-of-systems thinking and a set of appropriate technologies and methodologies. The railway digitalisation strategy should be based on systematic risk management that address aspects of, e.g., information security, traffic safety and project risk. In addition, managing changes for a digitalised railway effectively and efficiently also requires a framework for aspects such as needs finding, requirement identification, and impact of changes for individual, teams and organisation. In this work a major case studywithin the ePilot, has been performed in context of the operation and maintenance processes of the Swedish railway. Therefore, this paper aims to propose a framework for implementing innovations and driving change in a digitalised railway.

Keywords
Change management, digitalisation, railway, risk management, implementing innovation, framework for implementation
National Category
Transport Systems and Logistics Other Civil Engineering
Research subject
Operation and Maintenance
Identifiers
urn:nbn:se:ltu:diva-75966 (URN)9780911382716 (ISBN)9780911382709 (ISBN)
Conference
International Heavy Haul Association (IHHA) STS 2019, 10-14th June 2019, Narvik, Norway.
Available from: 2019-09-11 Created: 2019-09-11 Last updated: 2019-10-21Bibliographically approved
Juntti, U. & Jägare, V. (2019). Enhanced collaboration models in eMaintenance projects. In: P.O. Larsson-Kråik; A. Ahmadi (Ed.), Proceedings of the International Heavy Haul Association STS Conference (IHHA 2019): . Paper presented at International Heavy Haul STS Conference (IHHA 2019), Narvik, Norway, June 12-14, 2019 (pp. 925-931). International Heavy Haul Association (IHHA)
Open this publication in new window or tab >>Enhanced collaboration models in eMaintenance projects
2019 (English)In: Proceedings of the International Heavy Haul Association STS Conference (IHHA 2019) / [ed] P.O. Larsson-Kråik; A. Ahmadi, International Heavy Haul Association (IHHA) , 2019, p. 925-931Conference paper, Published paper (Refereed)
Abstract [en]

The increased digitalisation has led to greater transparency in recent decades, even in the railway industry, as it is now has taken a more holistic approach, discussing the railways as one system and introduced eMaintenance as a concept. Today the railway system is divided in several subsystems managed by different stakeholders, all having their own business objectives. In order to enhance the collaboration in the Swedish railway, Trafikverket initiated a project called ePilot in 2013, where all the stakeholders were invited to participate with the objective to implement results from research and development within railway maintenance.

ePilot provides a collaboration platform for the development of solutions for maintenance decision support, based on the needs and requirements from various stakeholders, in order to enable and transform the Swedish fragmented rail industry to an integrated industry. A new collaboration model has been developed in the ePilot, providing tools and game rules for enhanced collaboration towards jointly agreed goals. The model is dependent on trust, credibility in order for all parties to feel safe, during the whole project.

This paper will describe factors enabling a successful collaboration, collaborative methodology and provide conditions for continued participation in the ePilot project.

Place, publisher, year, edition, pages
International Heavy Haul Association (IHHA), 2019
National Category
Transport Systems and Logistics Other Civil Engineering
Research subject
Operation and Maintenance
Identifiers
urn:nbn:se:ltu:diva-75967 (URN)
Conference
International Heavy Haul STS Conference (IHHA 2019), Narvik, Norway, June 12-14, 2019
Funder
Swedish Transport Administration
Note

ISBN för värdpublikation: 9780911382709; 9780911382716 

Available from: 2019-09-11 Created: 2019-09-11 Last updated: 2021-06-08Bibliographically approved
Jägare, V., Juntti, U. & Karim, R. (2019). Governance of digital data sharing in a cross-organisational railway maintenance context. In: Miguel Castano Arranz, Ramin Karim (Ed.), Proceedings of the 5th International Workshop and Congress on eMaintenance: Trends in Technologies & methodologies, challenges, possibilites and applications. Paper presented at 5th International Workshop and Congress on eMaintenance, Stockholm, Sweden, 14-15 May 2019 (pp. 1-8). Luleå University of Technology
Open this publication in new window or tab >>Governance of digital data sharing in a cross-organisational railway maintenance context
2019 (English)In: Proceedings of the 5th International Workshop and Congress on eMaintenance: Trends in Technologies & methodologies, challenges, possibilites and applications / [ed] Miguel Castano Arranz, Ramin Karim, Luleå University of Technology, 2019, p. 1-8Conference paper, Published paper (Refereed)
Abstract [en]

The purpose of this paper is to study and explore the essential aspects of data governance in eMaintenance that need to be considered such as data sharing and data ownership in a cross-organisational railway maintenance context. Furthermore, the paper develops and provides an approach to strategies and guidelines, which can be used to govern digital data sharing.

To fulfil this purpose, case studies of several projects where sharing of data between stakeholders in order to develop maintenance decision support, was selected as a research strategy and supported by a literature study. Empirical data were collected through interviews, workshops, document studies, and observations. An approach was developed and validated using a case study.

The proposed approach supports the understanding and establishing strategies and guidelines for data governance in a cross-organisational railway context. This can be considered as one of the enablers for information logistics for maintenance purposes where the approach can be used as a support tool in order to facilitate the development of maintenance decision support within the railway industry.

Place, publisher, year, edition, pages
Luleå University of Technology, 2019
Keywords
Data governance, cross-organisation, maintenance, maintenance decision support, railway, eMaintenance
National Category
Other Civil Engineering
Research subject
Operation and Maintenance
Identifiers
urn:nbn:se:ltu:diva-76274 (URN)
Conference
5th International Workshop and Congress on eMaintenance, Stockholm, Sweden, 14-15 May 2019
Funder
Swedish Transport Administration
Note

ISBN för värdpublikation: 978-91-7790-475-5

Available from: 2019-10-07 Created: 2019-10-07 Last updated: 2020-09-15Bibliographically approved
Jägare, V. & Juntti, U. (2018). Reliable railways through collaboration and intelligent innovations. In: : . Paper presented at Intelligent Rail Summit 2018, Malmö, Sweden, November 27-29, 2018.
Open this publication in new window or tab >>Reliable railways through collaboration and intelligent innovations
2018 (English)Conference paper, Oral presentation with published abstract (Other academic)
Abstract [en]

The Swedish railway is composed of several stakeholders, each one with individual objectives and strategies. Although maintenance data used by all, data sharing is not common. Due to this, the lack of data sharing, effects maintenance decision making negatively.

To support the collaboration necessary for data sharing, decision support tools and enhanced information and communication technologies are needed. Solutions have been successfully developed through research within the eMaintenance field. Research in ICT and maintenance have been conducted in the eMaintenance Lab at Luleå Railway Research Center (JVTC) at Luleå University of Technology, for more than a decade.

Condition based maintenance is enabled by implementing eMaintenance research results in the ePilot-project, in order to create a collaboration platform; which can transform the Swedish fragmented rail industry to an integrated system, from an organizational and technical point of view. Today, 25 sub-projects has been completed covering solutions e.g. system for predicting degradation of wheel and rail using data from way-side and mobile monitoring equipment and new inspection techniques.

The paper aims to describe some of the key factors that might enable or hinder the collaboration, sharing of data and implementation of good results, jointly creating the best prerequisites for the operation and maintenance of the railway system.

The goal of the project is to improve punctuality and minimize disruption in rail services. The project is an industry collaboration between JVTC, the Swedish Transport Administration, railway actors and innovators in Sweden.

National Category
Transport Systems and Logistics
Research subject
Centre - Luleå Railway Research Center (JVTC); Operation and Maintenance
Identifiers
urn:nbn:se:ltu:diva-75969 (URN)
Conference
Intelligent Rail Summit 2018, Malmö, Sweden, November 27-29, 2018
Available from: 2019-09-11 Created: 2019-09-11 Last updated: 2021-09-03Bibliographically approved
Leijon-Sundqvist, K., Tegner, Y., Juntti, U., Karp, K. & Lehto, N. (2016). Hand skin temperature: are there warm and cold rewarming patterns after cold stress test? (ed.). Thermology International, 26(3), 81-87
Open this publication in new window or tab >>Hand skin temperature: are there warm and cold rewarming patterns after cold stress test?
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2016 (English)In: Thermology International, ISSN 1560-604X, Vol. 26, no 3, p. 81-87Article in journal (Refereed) Published
Abstract [en]

In 116 thermographic measurements of 66 healthy male participants, 44 of whom were measured at least twice, hand skin temperature distributions before and after a cold stress test (CST) were examined to identify any typical characteristics of hand skin rewarming. On each hand, measurements from 18 regions of interest recorded every 10 s were used to calculate the surface average temperature. Temperatures at baseline (Tb), directly after cooling (Tc), and after 15 min of rewarming (Tf) were used for comparison and the averages of each finger, palm, and hand were analyzed. Using fits of normal distribution for the measured data, final hand skin temperatures were divided into two groups, A and B, with a calculated boundary at 25.4 °C. Digital analyses of all thermograms were performed to describe the process, and each group's rewarming patterns were observed. Group A was considered to demonstrate warm rewarming, since the whole hands reached a Tf approximately equal to the Tb. By contrast, Group B demonstrated cold rewarming and had whole hand Tf less than Tb. The predictive value of Tc was lower than that of Tb in Group A, whereas the opposite occurred in Group B. Altogether, the findings suggest different hand skin temperature rewarming patterns in healthy males.

National Category
Other Health Sciences
Research subject
Health Science
Identifiers
urn:nbn:se:ltu:diva-11572 (URN)2-s2.0-85005987231 (Scopus ID)a94b21bd-cfa7-4507-ab07-0baf7a860395 (Local ID)a94b21bd-cfa7-4507-ab07-0baf7a860395 (Archive number)a94b21bd-cfa7-4507-ab07-0baf7a860395 (OAI)
Note

Validerad; 2016; Nivå 1; 2016-11-21 (andbra)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-03-05Bibliographically approved
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