Sökning: "Input devices"

Visar resultat 1 - 5 av 177 avhandlingar innehållade orden Input devices.

1. 1. Silicon Carbide Microwave Devices

   Författare :Joakim Eriksson; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SBD; high-power microwave devices; Silicon Carbide; diode mixer; wide band gap devices; physical simulations; resistive mixer; microwave devices; MESFET; Schottky diode;

   Sammanfattning : This work deals with silicon carbide (SiC) microwave devices. It treats two devices; the Schottky diode and the metal semiconductor field effect transistor (MESFET). Different MESFET materials, fabrication processes, theoretical models for physical simulation, and device models are presented. LÄS MER

3. 2. Vertical III-V Semiconductor Devices

   Författare :Tomas Bryllert; Fasta tillståndets fysik; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Halvledarfysik; Semiconductory physics; heterostructure barrier varactor frequency multiplier; field effect transistor; resonant tunneling; artificial molecule; terahertz; nanowire; Quantum dots;

   Sammanfattning : This thesis is based on three projects that deal with vertical III-V semiconductor devices. The work spans over basic research as well as more applied aspects of III-V semiconductor technology. All projects have in common that they rely on advanced epitaxial growth to form the starting material for device fabrication. LÄS MER

4. 3. Discrete and Continuous Shape Writing for Text Entry and Control

   Författare :Per Ola Kristensson; Shumin Zhai; William Buxton; Linköpings universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Text entry; Command entry; Human-computer interaction; Input devices; Shorthand; Keyboard; Software keyboard; Pattern recognition; Computer science; Datalogi;

   Sammanfattning : Mobile devices gain increasing computational power and storage capabilities, and there are already mobile phones that can show movies, act as digital music players and offer full-scale web browsing. The bottleneck for information flow is however limited by the inefficient communication channel between the user and the small device. LÄS MER

5. 4. Creating Digital Traces of Ideas : Evaluation of Computer Input Methods in Creative and Non-Creative Drawing

   Författare :Stanislaw Zabramski; Else Nygren; Antti Oulasvirta; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; evaluation; user performance; input methods; mouse; stylus; touch; tracing; ideation; Human-Computer Interaction; Människa-dator interaktion;

   Sammanfattning : Ideas are formed in a process of idea generation that includes creation, development, and communication of new ideas. Drawing has been used as a support for ideation for centuries. Today, computerized tools are commonly used for drawing. Such tools form a user interface between the human and the resulting drawing presented on the screen. LÄS MER

7. 5. On Radio Frequency Behavioral Modeling : Measurement Techniques, Devices and Validation Aspects

   Författare :Per N. Landin; Peter Händel; Magnus Isaksson; Wendy Van Moer; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electronics; Elektronik;

   Sammanfattning : Effektförstärkare för radiofrekvensapplikationer utgör fortfarande ett av de största problemen i trådlösa kommunikationssystem. Detta beror på att dessa förstärkare är ickelinjära, har låg energieffektivitet och ger mycket distortioner. Bättre verktyg för att förstå och korrigera dessa beteenden är nödvändiga. LÄS MER