Sökning: "flight power"

Visar resultat 16 - 20 av 51 avhandlingar innehållade orden flight power.

1. 16. Diamond Devices Based on Valley Polarization

   Författare :Nattakarn Suntornwipat; Jan Isberg; Markus Gabrysch; Saman Majdi; Hitoshi Umezawa; Uppsala universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; CVD diamond; valleytronics; Negative Differential Mobility; NDM; electron polarization; Time-of-Flight; magnetotransport; carrier transport; drift velocity; valley-transistor; Transferred-Electron Oscillator; TEO; TED; Gunn diode;

   Sammanfattning : Diamond is a wide bandgap semiconductor with extreme properties such as high thermal conductivity, high breakdown field, high carrier mobilities and chemical inertness. These properties together with the possibility to synthesize high purity Single-Crystalline (SC) diamond by Chemical Vapor Deposition (CVD), make it a very interesting material and a candidate for use in power electronics and in hazardous environments. LÄS MER

3. 17. Development and Construction of a 2.5-MeV Neutron Time-of-Flight Spectrometer Optimized for Rate (TOFOR)

   Författare :Anders Hjalmarsson; Jan Källne; James Drake; Uppsala universitet; []
   Nyckelord :Nuclear physics; Kärnfysik;

   Sammanfattning : A new neutron time-of-flight spectrometer optimized for high count rate (TOFOR) has been developed for the JET research tokamak. TOFOR will measure the energy distribution of neutrons emitted from the d+d → 3He+n fusion reactions in deuterium plasma. LÄS MER

4. 18. Situated Freedom : Exploring the Aesthetic Practice of Rem Koolhaas/OMA

   Författare :Katja Hogenboom; Helena Mattsson; Sven-Olov Wallenstein; Helene Frichot; Robert Somol; KTH; []
   Nyckelord :HUMANIORA; HUMANITIES; Situated Freedom; Assemblage; Fabulation; Any-Space-Whatever; Irrational Cut; Time-Image; Montrage; Non-Object; Theatre of Variation; Power of the False; Politics of Aesthetics; Messy Method; Aesthetic Practice; Rem Koolhaas; OMA; China Central Television Headquarters; Seattle Central Library; Villa dall’Ava; Maison à Bordeaux.; Arkitekturens historia och teori; History and Theory of Architecture;

   Sammanfattning : The thesis advocates that architecture can, as an operative medium, situate freedom. Following the work of Michel Foucault, the thesis develops an argument for an emancipatory endeavor, termed “situated freedom in architecture. LÄS MER

5. 19. Simulations And Experiments Of Plasma-Induced Effects In Silicon Detectors

   Författare :Ana Maria Gomez L; Ali Al-Adili; Diego Tarrío; Stephan Pomp; Andreas Solders; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; VERDI - VElocity foR Direct particle Identification; PIPS - Passive Implanted Planar Silicon; PDT - Plasma Delay Time; PHD - Pulse Height Defect; FF - Fission Fragment; ToF - Time-of-flight; MCP - Micro Channel Plat; Kärnfysik; Nuclear Physics;

   Sammanfattning : When an atomic nucleus undergoes fission, two fragments with different mass and kinetic energy are emitted. The highly unstable fission fragments (FFs) evaporate prompt neutrons soon after the nucleus splits. LÄS MER

7. 20. Applications of Ion Beam Methods in Silicide/Si and Silicide/GaAs Nanometre Structures

   Författare :Yanwen Zhang; Kärnfysik; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Phase formation; Nanometre structures; silicide; detection efficiency; Ion Beam Analysis; Ion Beam Synthesis; Time-of-Flight Energy Elastic Recoil Detection ToF-E ERD ; implantation; Fysicumarkivet A:1998:Zhang; Kärnfysik; Nuclear physics; Detla E-E ERD;

   Sammanfattning : Ion beam methods are used to analyse material (Ion Beam Analysis, IBA) and to modify the target (Ion Beam Modification of Materials, IBMM). In this thesis, ion beams have been used in various IBA techniques to investigate the surface nanometre structures, and also in an ion beam synthesis (IBS) technique to form thin films and to modify material properties. LÄS MER