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1.
  • 3-D band-stop FSS for X-band and Ku-band
  • 2017
  • Ingår i: 2017 Progress In Electromagnetics Research Symposium - Fall (PIERS - FALL). - : Electromagnetics Academy. - 9781538612118 - 9781538612125 ; , s. 671-675
  • Konferensbidrag (refereegranskat)abstract
    • A 3-D Frequency Selective Surface (FSS) with band-stop characteristics for X-band and Ku-band is proposed. A 3-D FSS unit cell is constructed by analyzing two 2-D FSS's. The size of the 3-D FSS unit cell is 5 mm × 5 mm wherein two layers of FR4 substrate with respective widths of 0.762 mm and 0.5 mm are used. Dual stop bands are obtained with this FSS unit cell around 10 GHz and 17.4 GHz; where a wide stop-band of 5.2 GHz is obtained. The parametric study carried out on the proposed design in terms change in nature of substrate, alternate use of different substrates and variation in angle of incidence. The 3-D FSS shows its band rejection property X-band and Ku-band respectively. Ansoft HFSS commercial EM solver software is used to carry out the simulation work.
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2.
  • A., F. (författare)
  • NA
  • 2019
  • Konferensbidrag (övrigt vetenskapligt)
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3.
  • A., Johnsson, et al. (författare)
  • Physical inactivity increases the risk of endometrial cancer and premenopausal breast cancer
  • 2015
  • Ingår i: American Association for Cancer Research (AACR) 106th Annual Meeting 2015,Philadelphia, United States,2015-04-18 - 2015-04-22. - : American Association for Cancer Research Inc.. ; 75:15 Suppl
  • Konferensbidrag (refereegranskat)abstract
    • Background. Epidemiological studies indicate that physical activity reduces the risk of cancer. Physical inactivity or sedentary behavior, has recently been suggested as a risk factor independent of physical activity level. Breast and endometrial cancer incidence have both been associated with physical activity, and endometrial cancer incidence with physical inactivity/sedentary behavior. The purpose of the present study was to investigate physical inactivity as a risk factor for breast cancer, divided into pre- and postmenopausal subtypes, and for endometrial cancer, and to explore possible dose-response relations regarding the level of physical inactivity. Methods. In a population-based prospective cohort study, 29 520 women in the southern part of Sweden, in ages between 25 and 64 years, participated. A questionnaire-based survey was performed 1990-92. Their reported professions were classified as sedentary or not which together with reported participation in competitive sports constituted the basis for classification into three activity-levels; (1) physical inactivity, defined as having sedentary occupation and no participation in competitive sports, (2) partly inactive, defined as either having a sedentary occupation or non- participation in competitive sports, (3) Physical active, defined as not having a sedentary occupation and participation in competitive sports. The association between physical inactivity and pre and postmenopausal breast and endometrial cancer incidence were analyzed by Cox regression, adjusted for hormonal factors, family history of cancer, body mass index (BMI) and age. Results. Physical inactive women had a significantly increased risk of endometrial cancer (HR = 2.41, 95% CI 1.14-5.11) and premenopausal breast cancer (HR = 2.40, 95% CI 1.14-5.02), compared with women who were less physical inactive. No such association was found for postmenopausal breast cancer. Analysis of linear trend showed a significant dose-response relationship with increased risk of both premenopausal breast cancer (ptrend 0.02) and endometrial cancer (ptrend
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5.
  • A. Mouris, Boules, et al. (författare)
  • A Dual-Polarized Multi-Antenna Structure for Simultaneous Transmission of Wireless Information and Power
  • 2019
  • Ingår i: A Dual-Polarized Multi-Antenna Structure for Simultaneous Transmission of Wireless Information and Power. - : IEEE. - 9781728106922
  • Konferensbidrag (refereegranskat)abstract
    • In this paper, a dual-polarized multi-antenna structure is designed at 2.45 GHz with the goal of allowing simultaneous transmission of wireless information and power. Differential feeding was used to minimize the mutual coupling due to radiation leakage in addition to a mushroom-type EBG structure for suppressing the surface waves. Simulation results for the proposed structure show a mutual coupling level lower than -40 dB between the information transmitting antenna and the power transmitting antennas for both polarizations. The isolation level between the antennas is improved by at least 22 dB and 14 dB for the E-plane and H-plane coupling, respectively.
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6.
  • A Study of Design Efficiency with a High-Level Language for FPGAs
  • 2007
  • Ingår i: Proceedings of the 14th International Reconfigurable Architectures Workshop (RAW'07). - Piscataway, N.J. : IEEE. - 1424409101 ; , s. 1-7
  • Konferensbidrag (refereegranskat)abstract
    • Over the years reconfigurable computing devices such as FPGAs have evolved from gate-level glue logic to complex reprogrammable processing architectures. However, the tools used for mapping computations to such architectures still require the knowledge about architectural details of the target device to extract efficiency. A study of the Mobius language and tools is presented in this paper, with a focus on generated hardware performance. A number of streaming and memory-intensive applications have been developed and the results have been compared with the corresponding implementations in VHDL and a behavioral hardware description language. Based upon experimental evidences, it is concluded that Mobius, a minimal parallel processing language targeted for reconfigurable architectures, enhances productivity in terms of design time and code maintainability without considerably compromising performance and resources.
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7.
  • Aaboen, Lise (författare)
  • BATON-CHANGING ON EGGSHELLS – TRANSFERRING SUPPLIER RELATIONSHIPS WHEN MOVING PRODUCTION
  • 2014
  • Konferensbidrag (refereegranskat)abstract
    • Production transfers are a result of outsourcing and offshoring decisions. Though, because ofthe strategic focus of the outsourcing literature have not the operational issues of howrelationship development between sender, receiver and raw material been fully depicted. Thepurpose of the present paper is to explore relationship development connected to transfer ofraw material supplies responsibility during transfer of production. To fulfil the purpose, fourdifferent production transfers were studied: three from Sweden to China, Romania andHungary respectively and one transfer from Holland to Sweden. We can see that thedependence and power shifts gradually between the sender and the receiver and therelationship between them sets the arena for what relationship is developed between thereceiver and the raw material suppliers. Furthermore, short social distances can over bridgecultural and technological distances to some extent, because it motivates to take therelationship into a more developed state.
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8.
  • Aaboen, Lise, 1978 (författare)
  • Business Incubators as Networks - How and Why?
  • 2008
  • Ingår i: Proceedings of ECEI 2008 The 3rd European Conference on Entrepreneurship and Innovation. ; , s. 1-8
  • Konferensbidrag (refereegranskat)
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9.
  • Aaboen, Lise, et al. (författare)
  • Designing and Assessing Learning in Venture Creation Programs - Winner of Best Practitioner Development Workshop Award
  • 2018
  • Konferensbidrag (övrigt vetenskapligt)abstract
    • Workshop Summary In Venture Creation Programs the venture acts as a ‘learning vessel’, enabling what students need to learn - and more - given a greater or lesser extent of guidance. But how do we ensure that the students are engaging in ‘doing what they need to do’ in order to ‘learn what they need to learn’? In this workshop, participants will benchmark and crowdsource to identify and develop teaching tool prototypes for venture creation programs. Each ‘teaching tool’ consist of a learning objective, a combination of learning activities and an assessment suggestion. The workshop consists of two steps: the first is to capture learning activities from the entire group; then we divide into smaller groups where we develop them further into teaching tools. The teaching tools can later be used by the participants in their home university in order to package integrated venture activities so that the activities become aligned to the learning objectives.
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10.
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