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- Ståhle, Alexander, et al.
(författare)
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Designguide för Smarta gator
- 2022
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Bok (övrigt vetenskapligt/konstnärligt)abstract
- Designguiden för smarta gator konkretiserar hur de fyra megatrenderna urbanisering, digitalisering, samhällsförändringar och miljöförändringar leder till nya krav och utformningsprinciper för framtidens gator. Guiden är tänkt att fungera som en inspiration och ett underlag för att förnya svensk gatupolicy på nationell, regional och kommunal nivå.Guiden innehåller utöver en inledning följande kapitel: en historisk tillbakablick (gatans utveckling), gatans användning, gatans delar, gatans design, designprocessen, guidens genomförande.
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| 3. |
- Adams, Emma, 1989, et al.
(författare)
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Structure-function relationship for alumina supported platinum during formation of ammonia from nitrogen oxide and hydrogen in presence of oxygen
- 2016
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Ingår i: Physical Chemistry Chemical Physics. - 1463-9084 .- 1463-9076. ; 18:16, s. 10850-10855
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Tidskriftsartikel (refereegranskat)abstract
- We study the structure-function relationship of alumina supported platinum during forma- tion of ammonia from nitrogen oxide and dihydrogen by employing in situ X-ray absorption and Fourier transformed infrared spectroscopy. Particular focus is directed towards the effect of increased levels of oxygen on the reaction as a model system for emerging technologies for passive selective catalytic reduction of nitrogen oxides. The suppressed formation of ammo- nia observed as the feed becomes net-oxidizing is accompanied by a considerable increase in the oxidation state of platinum as well as enhanced formation of surface nitrates and loss of NH-containing surface species. In the presence of (excess) oxygen, the ammonia formation is proposed to be limited by the weak interaction between nitrogen oxide and the oxidized platinum surface. This leads to slow dissociation rate of nitrogen oxide and thus low abun- dance of atomic nitrogen surface species that can react with adsorbed hydrogen atoms. In this case the consumption of hydrogen through the competing water formation reaction and decomposition/oxidation of ammonia are of less importance for the net ammonia formation.
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| 6. |
- Bock, David, 1976, et al.
(författare)
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Do negative intrusive thoughts at diagnosis predict impaired quality of life, depressed mood and waking up with anxiety 3, 12 and 24 months after radical prostatectomy?–a longitudinal study
- 2020
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Ingår i: Scandinavian Journal of Urology. - : Medical Journals Sweden AB. - 2168-1805 .- 2168-1813. ; 54:3, s. 220-226
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Tidskriftsartikel (refereegranskat)abstract
- Objective: To evaluate the effect of intrusive thoughts at diagnosis on quality of life, depressed mood and waking up with anxiety up to two years after radical prostatectomy. Method: The Laparoscopic Prostatectomy Robot Open (LAPPRO) trial was a prospective, longitudinal multicenter study of 4003 patients undergoing radical prostatectomy. Questionnaire data were collected preoperatively, at 3, 12 and 24 months after surgery. Results: The group of patients with intrusive thoughts at diagnosis had a statistically significant higher postoperative prevalence of impaired quality of life, depressed mood and waking up with anxiety as compared with the group of patients with no or minor intrusive thoughts. The highest risk increase for impaired QoL, depressed mood and waking up with anxiety ≥1/week was at 12, 3 and 3 months, respectively, where the three outcomes increased by 38% (RR: 1.38; 95%CI: 1.27–1.49)), 136% (RR: 2.36; 95%CI: 1.74–3.19)) and 165% (RR: 2.65; 95%CI: 2.22–3.17)), respectively. Conclusions: The demonstrated link between intrusive thoughts and quality of life, depressed mood and waking up with anxiety deliver is further evidence to the idea that intrusive thoughts has potential as an endpoint for assessing and predicting psychological distress among men with prostate cancer diagnosis. Trial registration number: ISRCTN06393679 (www.isrctn.com). Date of registration: 07/02/2008. Retrospectively registered. © 2020, © 2020 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.
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| 9. |
- Carlsson, Jonas, 1972-
(författare)
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Contributions to Asynchronous Communication Ports for GALS Systems
- 2006
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Digital systems commonly use a single global clock signal to synchronize the whole system. This is not always possible and it can be more advantageously to divide the system into separate clock domains, where each clock domain can operate with its own clock frequency. Communication between the different clock domains are not trivial and must be handled with care. Several schemes can be used depending on the relation between the clock frequencies of the communicating clock domains. This thesis focuses on the Globally Asynchronous Locally Synchronous (GALS) scheme, in which all communications between clock domains are handled using dedicated communication channels. These communication channels use asynchronous handshaking protocols to transfer information between clock domains. No global clock signal is used and the clock signal is instead local for each clock domain.An efficient design flow for GALS system has been developed, which allows a designer to implement GALS systems without prior knowledge of asynchronous circuits. The GALS design flow starts with a high-level model of the system behavior and ends with an implementation in an FPGA or an ASIC. The design flow can also increase the design efficiency for GALS system since the flow alleviates the design and placement of the asynchronous circuits for the designer. A tool that handles the asynchronous circuits in the design flow has been developed.Two types of communication ports have been developed to handle the communication between clock domains. Both of these ports can be used in systems with static schedule or dynamic schedule of transactions. One of the communication ports can easily be migrated to a new CMOS process, since it only uses standard-cells that care provided by most vendors of CMOS processes. A clock gating circuit has been developed to allow a clock domain to use an external stable clock signal to create an internal stoppable clock signal. A stoppable local clock is used to eliminate problems with metastability when transferring data between clock domains with arbitrary clock frequencies.In order to validate the design flow and proposed circuitry, has an integrated circuit for 2-dimensional Discrete Cosine Transform been implemented using the GALS scheme and one of the proposed communication ports. The circuit has been implemented using a standard-cell library in a 0.35 mm CMOS process. A few possible improvements to the implementation are also discussed in the thesis.The GALS design flow with the asynchronous wrapper generation tool has been used to implement the digital baseband processing in the physical layer of the IEEE 802.11a transmitter. The transmitter is built using multiple clock domains. The transmitter has been implemented and tested in a Stratix II FPGA.
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