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| 2. |
- Elfgren, Lennart, 1942-, et al.
(author)
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Infrastructure in NW Russia - Potential development : A Pre-feasibility Study with Special Reference to Winter Transportation, Concrete Structures, and Timber Structures
- 2000
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Reports (other academic/artistic)abstract
- In co-operation with a Finnish Group of researchers a pre-feasibility study was undertaken regarding potential development of the Infrastructure in NW Russia. Special emphasis was given: Winter Transportation and Reinforcement of Load Bearing Ice Covers; Concrete Construction and Strengthening of Concrete Structures; Timber Construction and Mechanical Wood Industry Development; and Energy Conservation and Industrial Energy Development.Based on the study three Russian-Swedish co-operation projects have started:- Load Bearing Ice Covers (Literature Survey)- Forces caused by Ice Crushing against Off-Shore Structures (EC funded Research Project)- Strengthening of a Bridge. Co-operation Stabilator/Skanska - Arkhangelsk Road
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| 3. |
- Erni, W., et al.
(author)
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Technical design report for the PANDA (AntiProton Annihilations at Darmstadt) Straw Tube Tracker
- 2013
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In: European Physical Journal A. Hadrons and Nuclei. - : Springer Science and Business Media LLC. - 1434-6001 .- 1434-601X. ; 49:2
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Journal article (peer-reviewed)abstract
- This document describes the technical layout and the expected performance of the Straw Tube Tracker (STT), the main tracking detector of the PANDA target spectrometer. The STT encloses a Micro-Vertex-Detector (MVD) for the inner tracking and is followed in beam direction by a set of GEM stations. The tasks of the STT are the measurement of the particle momentum from the reconstructed trajectory and the measurement of the specific energy loss for a particle identification. Dedicated simulations with full analysis studies of certain proton-antiproton reactions, identified as being benchmark tests for the whole PANDA scientific program, have been performed to test the STT layout and performance. The results are presented, and the time lines to construct the STT are described.
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| 4. |
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| 5. |
- Fransson, Lennart, et al.
(author)
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Field investigation of load‑curvature characteristics of reinforced ice
- 1986
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In: Polartech '86. - Espoo : Technical Research Centre of Finland. - 9513827143 ; , s. 175-196
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Conference paper (peer-reviewed)abstract
- Load-deformation characteristics are studied for three types of top reinforcement in a floating ice cover: (a) sand, (b) birch branches and (c) sawn timber. The curvature of the ice cover is measured during application of a constant load. A three-parameter creep model is proposed for the ice deformation. Expressions are deduced for the characteristic lenght and the maximum deflection of the ice cover based on the curvature.
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| 6. |
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| 7. |
- Nybacka, Mikael, et al.
(author)
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Project: CASTT - Centre for Automotive Systems Technologies and Testing
- 2007
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Other publication (pop. science, debate, etc.)abstract
- Through the Centre for Automotive Systems Technologies and Testing, Luleå University of Technology aims to first of all support automotive winter testing in Northern Sweden. This means to support the local automotive test entrepreneurs and through them their customers: the car manufacturers and their suppliers. To succeed in this task, the center relies on the university's areas of leading research and most importantly on the cooperation between those areas.
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| 8. |
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| 9. |
- Bergdahl, Lars, 1943, et al.
(author)
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Waves for design of wind-power plants in shallow seas
- 2009
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In: Proceedings of the 20th International Conference on Port and Ocean Engineering under Arctic Conditions. ; 1, s. 1-11
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Conference paper (peer-reviewed)abstract
- Usually there is little knowledge of long-term wave conditions at prospective sites for windpower plants, while the deep-water or open sea conditions may be more known and geographically less varying. However, most wind-energy plants are intended for water depths less than 20 m. A concept for assessing design waves at a near-shore site is to transform the offshore wave spectra to the target site by a model for spectral wave-energy transfer over the actual bottom topography. The inshore spectra can be used for linear statistics of extreme waves and design wave loads can be produced. In this context it is important to know the realism of used spectral forms.Based on 58 measured wave spectra at 6 m water depth at the near-shore wind farm Bockstigen in the Baltic the most realistic spectrum was found to be the TMA spectrum, which is a JONSWAP spectrum modified for shallow water. Some few examples are given.
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| 10. |
- Bergström, Malin, et al.
(author)
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Children with two homes: Psychological problems in relation to living arrangements in Nordic 2-to 9-year-olds
- 2019
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In: Scand J Public Health. - : SAGE Publications. - 1403-4948 .- 1651-1905. ; 47:2, s. 137-145
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Journal article (peer-reviewed)abstract
- Aim: Joint physical custody, children spending equal time in each parents' respective home after a parental divorce, is particularly common in Nordic compared with other Western countries. Older children have been shown to fare well in this practice but for young children there are few existing studies. The aim of this paper is to study psychological problems in 2- to 9-year-old Nordic children in different family forms. Methods: Total symptom score according to the Strengths and Difficulties Questionnaire as well as scores showing externalizing problems were compared among 152 children in joint physical custody, 303 in single care and 3207 in nuclear families through multiple linear regression analyses. Results: Children in single care had more psychological symptoms than those in joint physical custody (B = 1.08; 95% CI 0.48 to 1.67) and those in nuclear families had the least reported symptoms (B = -0.53; 95% CI -0.89 to -0.17). Externalizing problems were also lower in nuclear families (B = -0.28, 95% CI -0.52 to -0.04) compared with joint physical custody after adjusting for covariates. Conclusions: Young children with non-cohabiting parents suffered from more psychological problems than those in intact families. Children in joint physical custody had a lower total problem score than those in single care after adjusting for covariates. Longitudinal studies with information on family factors before the separation are needed to inform policy of young children's post-separation living arrangements.
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