Sökning: "accelerators"

Visar resultat 11 - 15 av 93 avhandlingar innehållade ordet accelerators.

  1. 11. Numerical and Experimental Studies of Wakefield Accelerators

    Författare :Henrik Ekerfelt; Atomfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; laser wakefield acceleration; betatron radiation; ionization-induced trapping; density down-ramp trapping; colliding pulse injection; direct laser acceleration; laser wakefield merging; particle-in-cell simulations; high-intensity optics; Fysicumarkivet A:2019:Ekerfelt;

    Sammanfattning : This thesis is based on work done by the author on the development of laser wakefield accelerators.Wakefield acceleration in plasmas is a promising technique to provide the next generation of accelerating structures and particle beams. LÄS MER

  3. 12. Stress steroids as accelerators of Alzheimer's disease. : Effects of chronically elevated levels of allopregnanolone in transgenic AD models

    Författare :Sara Bengtsson; Mingde Wang; Torbjörn Bäckström; Maja Johansson; Caroline Graff; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Allopregnanolone; Alzheimer s disease; beta-amyloid; synaptophysin; chronic stress; Morris water maze; obstetrik och gynekologi; Obstetrics and Gynaecology; medicinsk farmakologi; Medical Pharmacology; Neurology; neurologi; Geriatrics; geriatrik; medical behavioral science; medicinsk beteendevetenskap;

    Sammanfattning : Background Alzheimer’s disease (AD) and dementia are devastating con­ditions not only for the affected patients but also for their families.  The economical costs for the society are tremendous. LÄS MER

  4. 13. NoGAP: Novel Generator of Accelerators and Processors

    Författare :Per Axel Karlström; Dake Liu; Peter Marwedel; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; ADL; ESL; Processor; Accelerator; Compiler; Electrical engineering; Elektroteknik; Computer engineering; Datorteknik;

    Sammanfattning : ASIPs are needed to handle the future demand of flexible yet highperformance embedded computing. The flexibility of ASIPs makes them preferable over fixed function ASICs. Also, a well designed ASIP, has a power consumption comparable to ASICs.  However the cost associated with ASIP design is a limiting factor for a more wide spread adoption. LÄS MER

  5. 14. Death Penalty in Decline : Brakes and Accelerators in U.S. State Legislatures

    Författare :Emma Ricknell; Magnus Hagevi; Karl Loxbo; Kaare Strøm; Linnéuniversitetet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; abolition; bill proposals; death penalty; Democrats; gubernatorial veto; legislative entrepreneurs; legislative professionalism; morality policy; public opinion; Republicans; state legislatures; women legislators; Statsvetenskap; Political Science;

    Sammanfattning : After reaching a peak during the 1990s, death sentences and executions havedeclined throughout the states. During this time, a steady stream of states havetaken the step to join a growing group of abolitionist states, or alternatively, have a moratorium on executions in place. In a parallel development, supportfor the death penalty among the U.S. LÄS MER

  7. 15. No entrepreneur is an island : An exploration of social entrepreneurial learning in accelerators

    Författare :Duncan Levinsohn; Ethel Brundin; Anders Melander; Jönköping University; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES;

    Sammanfattning : This dissertation explores the learning of social entrepreneurs in accelerators. Building on Jarvis’ (2010) existential theory of learning, it conceptualises entrepreneurial learning as a process in which purposeful individuals encounter and transform experiences of disjuncture. These experiences are embedded in both human and material contexts. LÄS MER