Time filter

Source Type

Lulea, Sweden

Luleå University of Technology or Luleå tekniska universitet of Sweden is Scandinavia's northernmost university of technology. It has four campuses, located in Luleå , Kiruna , Skellefteå and Piteå . Wikipedia.

Kaplan A.F.H.,Lulea University of Technology
Applied Physics Letters | Year: 2012

The modulation of the angle-dependent Fresnel absorptivity across wavy molten steel surfaces during laser materials processing, like drilling, cutting, or welding, has been calculated. The absorptivity is strongly altered by the grazing angle of incidence of the laser beam on the processing front. Owing to its specific Brewster-peak characteristics, the 10.64 μm wavelength CO 2-laser shows an opposite trend with respect to roughness and angle-of-incidence compared to lasers in the wavelength range of 532-1070 nm. Plateaus or rings of Brewster-peak absorptivity can lead to hot spots on a wavy surface, often in close proximity to cold spots caused by shadow domains. © 2012 American Institute of Physics. Source

Kastensson A.,Lulea University of Technology
Journal of Cleaner Production | Year: 2014

Given the all-encompassing environmental challenge facing the automotive industry the weight of the car is one essential factor that has an effect on CO2 emissions for both conventional cars and for Electric Vehicles and Hybrid Electric Vehicles. Even though automakers understand and have largely mastered the technical difficulties involved with alternatives to the all-steel body, the mainstream industry has nevertheless for the most part retained it. The purpose of this paper is to explore the SåNätt lightweight project as a concrete example of how two Swedish automakers (Saab and Volvo) have approached the lightweight challenge, but also to conceptualize the project in terms of what hinders and enables environmental innovations in the automotive industry. The result of the study indicates fundamentally different approaches between the automakers. While Saab focused on radical development of new concepts aiming to build a supplier structure for collaboration, Volvo focused on incremental development emphasizing short-term implementation. The empirical data also reveals a tendency for Volvo to be more deeply committed to its infrastructure for body manufacturing (the production of the all-steel body), thus hindering more radical changes. The paper concludes by highlighting a paradox emerging from the case, questioning whether established actors in the automotive industry can effectively deal with the environmental challenge. © 2013 Elsevier Ltd. All rights reserved. Source

Zobel T.,Lulea University of Technology
Journal of Cleaner Production | Year: 2013

Adoption of environmental management systems constitutes one of the most important elements of corporate sustainability in recent years. The purpose of this study is to contribute knowledge as to which firms are most likely to adopt an environmental management system, those which are in greatest need of effective approaches or those which are already environmental frontrunners. A comparison between the improvement in environmental performance over a six-year period prior to ISO 14001 certification and the corresponding improvement in firms choosing not to adopt a system was performed. Environmental data was analyzed by using t-tests for six different areas: air emissions, water emissions, resource use, energy use, waste and overall environmental performance. In none of these environmental areas have we been able to find any statistically significant differences between certified and non-certified firms at 95% confidence level regarding the change in environmental performance prior to ISO 14001-certification or the corresponding period in non-certified firms. Our results indicate that it is equally likely that firms showing less or no improvement choose to implement and certify an environmental management system as it is for firms showing more improvement to do so. © 2012 Elsevier Ltd. All rights reserved. Source

Management studies highlight the importance of an organization's capability to both exploit existing knowledge and technologies for short-term profits and also explore new knowledge and technologies to enhance long-term innovation. Although this paradox recently has received escalating interest in management research, studies dealing with project-levels and project-based organizations (PBOs) are scarce. This conceptual paper discusses how PBOs in the construction industry can manage the exploration/exploitation paradox at different organizational levels. Short-term project focus and decentralization inhibits learning from one point in time and space to another, making it easier to reap the benefits of exploitation than of exploration. Current structural and sequential separation of exploration and exploitation activities at business unit, project portfolio, and project levels do not solve the paradox, due to lack of integrating mechanisms. Hence, PBOs in the construction industry may suffer from inadequate extent of exploration, while the extent of exploitation is not reaching its potential. Cooperative procurement procedures can serve as a basis for facilitating both exploration and exploitation of knowledge and technologies in construction projects. © 2012 Elsevier Ltd and IPMA. Source

Agency: Cordis | Branch: H2020 | Program: CSA | Phase: SC5-13c-2015 | Award Amount: 2.00M | Year: 2016

MIN-GUIDE is a project addressing the need for a secure and sustainable supply of minerals in Europe by developing a Minerals Policy Guide. The key objectives of the project are (1) providing guidance for EU and MS minerals policy, (2) facilitating minerals policy decision making through knowledge co-production for transferability of best practice minerals policy, and (3) fostering community and network building for the co-management of an innovation catalysing minerals policy framework. This will be achieved through a systematic profiling and policy benchmarking of relevant policy and legislation in Europe, which includes the identification of innovation friendly best practices through quantitative indicators and a qualitative analysis country-specific framework conditions, as well as through the compilation of minerals statistics and reporting systems. These insights will form the basis for developing an interactive, tailor-made online Minerals Policy Guide. Another key feature of the MIN-GUIDE project will be knowledge co-production for minerals policy decision makers through Policy Laboratories exploring these best practice examples along the whole mineral production value chain (exploration and extraction, processing, recycling and mine closure). Furthermore, MIN-GUIDE will facilitate the building of a sustainable minerals policy stakeholder network through this knowledge co-production and utilization in Policy Laboratories as well as through three major Conferences. These Conferences will explore the minerals governance framework, work on recommendations for promoting innovation along the whole minerals production value chain, and put it into the wider context of the circular economy. The MIN-GUIDE project and in particular the dissemination of the Minerals Policy Guide to specific target audiences will have the expected impact of guiding EU MS and EU level minerals policy-making towards a more coherent, transparent and innovation-catalysing framework.

Discover hidden collaborations