| 1. |
- Thorslund, Birgitta, 1976-, et al.
(författare)
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Interaction between cyclists, motor vehicles and infrastructure : a simulator study on cyclist strategy and behaviour at intersections
- 2020
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Ingår i: Proceedings of 8th Transport Research Arena TRA 2020. ; , s. 10-
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- Severe and fatal accidents between cyclists and motor vehicles are common at intersections, and many involve right-turning vehicles, with drivers not observing an adjacent cyclist. Few structured investigations exist regarding the interaction between the two, and factors to be studied are how infrastructure and vehicle properties affect human decision-making and cycling behaviour. Therefore, a bicycle simulator study was performed, where vehicle type, lane markings and width were systematically varied in a scenario with a cyclist approaching a vehicle from behind at an intersection. 33 participants each cycled through 8 intersections. Data on cycling trajectories, stopping points and speed was coupled with survey data and semantically categorized verbal responses to questions regarding strategy for choice of stopping point. Results show that all three factors (vehicle type, lane markings and available vehicle-adjacent space) significantly affects cyclists’ behaviour (lateral and longitudinal stopping position), speed choice and verbally expressed conscious strategies.
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| 2. |
- Bhatti, Harrison John, 1979-, et al.
(författare)
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Electric Roads : Energy Supplied by Local Renewable Energy Sources and Microgrid Distribution System
- 2019
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- The electric road system is an emerging concept in this modern era. The advancement of technology has made it possible to give this concept a real shape (electric road system). However, the energy provided to the electric roads is still produced by non-renewable energy sources, which are completely unhealthy and harmful for society. Furthermore, the traditional grid is not suited to integrate with decentralized/localized energy generation and distribution systems. It is an ineffectual and environmentally extravagant system. Therefore, the preliminary contribution of this research is to introduce a decentralized/localized energy generation system based on renewable energy sources and energy distribution to electric roads through the emerging technology of microgrid and smart grid systems, which have the capability to integrate with renewable energy sources easily. Thus, producing electricity with renewable energy sources is environmentally friendly, less expensive, and available without charges. However, each source of energy has some environmental impacts and cost differences. A brief description of the environmental and cost impact of renewable energy sources (wind, solar) is also presented.
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| 3. |
- Islam, Md Mafijul, et al.
(författare)
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Towards benchmarking of functional safety in the automotive industry
- 2013
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Ingår i: Lecture Notes in Computr Science. - Berlin, Heidelberg : Springer Berlin Heidelberg. - 1611-3349 .- 0302-9743. - 9783642387883 ; , s. 111-125
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Konferensbidrag (refereegranskat)abstract
- Functional safety is becoming increasingly important in the automotive industry to deal with the growing reliance on the electrical and/or electronic (E/E) systems and the associated complexities. The introduction of ISO 26262, a new standard for functional safety in road vehicles, has made it even more important to adopt a systematic approach of evaluating functional safety. However, standard assessment methods of benchmarking functional safety of automotive systems are not available as of today. This is where the BeSafe (Benchmarking of Functional Safety) project comes into the picture. BeSafe project aims to lay the foundation for benchmarking functional safety of automotive E/E systems. In this paper, we present a brief overview of the project along with the benchmark targets that we have identified as relevant for the automotive industry, assuming three abstraction layers (model, software, hardware). We then define and discuss a set of benchmark measures. Next, we propose a benchmark framework encompassing fault/error models, methods and the required tool support. This paper primarily focuses on functional safety benchmarking from the Safety Element out of Context (SEooC) viewpoint. Finally, we present some preliminary results and highlight potential future works.
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| 5. |
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| 6. |
- Käck, Andreas, 1976
(författare)
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Superconducting Qubits: Charge read-out and backaction
- 2004
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- For quantum computers to become reality, not only do the qubits have to be carefully engineered to be well isolated during operation time, but this also puts great strain on the measurement setup. We have looked at the backaction from a single-electron transistor (SET), operated both in the normal and in the superconducting state, on a single Cooper-pair box qubit. We have also designed a new read-out setup for a flux qubit using a Cooper-pair transistor that would allow read-out at the flux degeneracy point. In the first case we calculate the mixing time and the influence on the qubit steady-state distribution. We find that the mixing time is larger than typical experimental measurement times, indicating the possibility of single shot read-out. For the steady-state distribution of the qubit, we calculate the Coulomb staircase, finding additional structure due to the noise in the SET. For the flux qubit we design a read-out scheme involving a quantum flip-flop process, where the measurement outcome results in the presence or absence of an incoherent tunneling process. We estimate read-out and mixing times and find that single shot read-out should be achievable.
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| 7. |
- Sjögren, Leif, 1953-, et al.
(författare)
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Infrastruktur för bilar med automatiserade funktioner : ett kunskapsunderlag om behov av nödvändiga anpassningar
- 2022
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- Pågående digitalisering av transportsystemet, inklusive automatiserade fordon, innebär ett paradigmskifte. Utvecklingen av fordon med avancerat förarstöd, automatiserade funktioner och självkörande fordon är nu en självklar användning i transportsystemet. Tack vare introduktionen av nya sensorer i fordonen och uppkoppling finns ett komplement som möjliggör automationsfunktioner som kan stödja den mänskliga föraren med köruppgiften under hela eller delar av resan. Å andra sidan bör det stå klart att dagens transportsystem och infrastruktur har utformats för att manövrera fordon med hjälp av mänskliga förare och deras tillhörande begränsningar och möjligheter.Projektet syftar till, att ur ett väghållarperspektiv med fokus på det statliga vägnätet, redogöra för det aktuella kunskapsläget avseende befintliga och möjliga anpassningar av digital och fysisk infrastruktur för att ge stöd till fordon med automatiserade funktioner. Projektet syftar även till långsiktig kunskapsuppbyggnad.Underlag har samlats in via litteraturstudier och framför allt hämtats från studier av pågående och utförda relevanta projekt såväl nationella som internationella. Vidare har mycket kunskap hämtats in genom författarnas nätverk och deras deltagande i relevanta internationella och nationella grupper. En workshop med berörda kommersiella aktörer har också genomförts inom projektet.
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