| 1. |
- Blanco, Ana Maria, et al.
(author)
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Impact of flat-top voltage waveform distortion on harmonic current emission and summation of electronic household appliances
- 2018
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In: The Renewable Energies and Power Quality Journal. - : EA4EPQ-European Association for the Development of Renewable Energy, Environment and Power Quality. - 2172-038X. ; 1:16, s. 698-703
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Journal article (peer-reviewed)abstract
- Electronic household appliances are non-linear loads and emit harmonics into the low voltage networks. Usually, these loads are simply modelled by constant current source models, which only represent the harmonic emission of the appliances for a single supply voltage distortion, mostly sinusoidal conditions. Measurements have shown that the harmonic currents emitted by electronic devices can significantly depend on the circuit topology and the existing supply voltage distortion. This paper studies the impact of supply voltage distortion, which can be typically found in public low voltage networks (so-called flat-top voltage waveform), on the harmonic current emission of individual devices with different circuit topologies as well as the impact of supply voltage distortion on the harmonic summation of these devices.
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| 2. |
- Blehr, Otto
(author)
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Elk hunting on crusted snow in the Stone Age
- 2022
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In: Fornvännen. - Stockholm : Kungl. Vitterhets Historie och Antikvitets Akademien. - 0015-7813 .- 1404-9430. ; 117:3, s. 208-211
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Journal article (peer-reviewed)abstract
- Hunting elk on crusted snow in late winter/early springmight, have been important when surplus was running low. The data we have about such hunt is to my knowledge a Stone Age panel from Vyg in Russia, a description from subarctic Canada in the 1770s, and a story from Sweden in 1848. In addition, there is as well another Stone Age panel that I find relevant, this one from Kanozero in Russia, showing a bear hunt.
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| 3. |
- Kubilinskas, Eligijus, et al.
(author)
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Recovery, routing and load balancing strategy for an IP/MPLS network
- 2007
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In: Managing Traffic Performance in Converged Networks / Lecture notes in computer science. - Berlin, Heidelberg : Springer Berlin Heidelberg. - 0302-9743 .- 1611-3349. ; 4516, s. 65-76
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Conference paper (peer-reviewed)abstract
- The paper considers a problem of routing, protection and load balancing in the IP/MPLS network. A network design problem combining all these aspects is presented. Proportionally fair distribution of residual bandwidths on links is used for load balancing, and protection is achieved with failure-dependent backup paths. The efficiency of the proposed approach is tested by combining optimization and simulation tools. Numerical experiments show that using the proposed load balancing and protection mechanisms decreases the number of disrupted LSPs in case of failures, as compared to other recovery options considered.
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| 5. |
- Hollberg, Alexander, 1985
(author)
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Does a flipped classroom approach help? – Experiences from a project-based engineering course
- 2023
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In: Proceedings Chalmers Conference on Teaching and Learning 2023. - 9789188041548 ; , s. 24-31
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Conference paper (peer-reviewed)abstract
- Many project-based courses start with theoretical background lectures. However, the application of this knowledge in the students’ projects is often limited. This paper explores the research question: Does a flipped classroom approach improve the connection between theoretical lectures and the practical project? The method consists of converting four conventional lectures into a flipped classroom approach and posing surveys to the students. Furthermore, the teachers reflect on the outcomes in comparison to previous years. The results show that the exercises after the pre-recorded flipped lectures are appreciated by the students. However, the quality of their final project reports and observations during supervision meetings do not show clear results. As the project was carried out in 2021 during the pandemic, the results might be overshadowed by the impact of the remote teaching situation. Finally, the continued work on the flipped classroom approach led to high quality reports and improved course evaluations in 2023.
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| 6. |
- Daoura, Loudin, et al.
(author)
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Postpartum Behavioral Profiles in Wistar Rats Following Maternal Separation : Altered Exploration and Risk-Assessment Behavior in MS15 Dams
- 2010
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In: Frontiers in Behavioral Neuroscience. - : Frontiers Media SA. - 1662-5153. ; 4
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Journal article (peer-reviewed)abstract
- The rodent maternal separation (MS) model is frequently used to investigate the impact of early environmental factors on adult neurobiology and behavior. The majority of MS studies assess effects in the offspring and few address the consequences of repeated pup removal in the dam. Such studies are of interest since alterations detected in offspring subjected to MS may, at least in part, be mediated by variations in maternal behavior and the amount of maternal care provided by the dam. The aim of this study was to investigate how daily short (15 min; MS15) and prolonged (360 min; MS360) periods of MS affects the dam by examining postpartum behavioral profiles using the multivariate concentric square field (MCSF) test. The dams were tested on postpartum days 24-25, i.e., just after the end of the separation period and weaning. The results reveal a lower exploratory drive and lower risk-assessment behavior in MS15 dams relative to MS360 or animal facility reared dams. The present results contrast some of the previously reported findings and provide new information about early post-weaning behavioral characteristics in a multivariate setting. Plausible explanations for the results are provided including a discussion how the present results fit into the maternal mediation hypothesis.
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