Sökning: "Simplicity"

Visar resultat 21 - 25 av 258 avhandlingar innehållade ordet Simplicity.

1. 21. Ultra High Speed InP Heterojunction Bipolar Transistors

   Författare :Mattias Dahlström; KTH; []
   Nyckelord :InP HBT carbon high-speed;

   Sammanfattning : This thesis deals with the development of high speed InPmesa HBT’s with power gain cut—off frequencies up toand above 300 GHz, with high current density and low collectordischarging times.Key developments are Pd—based base ohmics yielding basecontact resistances as low as 10 Ωµm2, base—collector grades to enable to use ofInP in the collector, and an increase in the maximum currentdensity through collector design and thermal optimization. LÄS MER

3. 22. Steady waves in local and nonlocal models for water waves

   Författare :Tien Truong; Matematik (naturvetenskapliga fakulteten); []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; The steady Euler equations; the Whitham equation; solitary waves; highest waves; periodic waves; transverse dynamics; The steady Euler equations; the Whitham equation; solitary waves; highest waves; periodic waves; transverse dynamics;

   Sammanfattning : We study the steady Euler equations for inviscid, incompressible, and irrotational water waves of constant density. The thesis consists of three papers. The first paper approaches the Euler equations through a famous nonlocal model equation for gravity waves, namely the Whitham equation. LÄS MER

4. 23. Class of Accurate Low Order Finite Elements

   Författare :Magnus Fredriksson; Hållfasthetslära; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; quadrilateral ; variational ; finite element ; element technology ; HuWashizu ; hexahedral ; Technological sciences; Teknik;

   Sammanfattning : High accuracy and low computational costs are essential properties for efficient finite element codes. Improvements of the finite element method in order to satisfy these qualities have been the subject for extensive research activities ever since its introduction. LÄS MER

5. 24. On Admission Control for IP Networks Based on Probing

   Författare :Ignacio Más; Gunnar Karlsson; Wolfgang Effelsberg; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Admission control; QoS; IP networks; Telecommunication; Telekommunikation;

   Sammanfattning : The current Internet design is based on a best-effort service, which combines high utilization of network resources with architectural simplicity. As a consequence of this design, the Internet is unable to provide guaranteed or predictable quality of service (QoS) to real-time services that have constraints on end-to-end delay, delay jitter and packet loss. LÄS MER

7. 25. Performance Monitoring and Control in Wireless Sensor Networks

   Författare :Ibrahim Orhan; Thomas Lindh; Ilangko Balasingham; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; body sensor networks; wireless sensor networks; performance monitoring; performance control; admission control; Bluetooth performance; clock drift compensation; time synchronization;

   Sammanfattning : Wireless personal area networks have emerged as an important communication infrastructure in areas such as at-home healthcare and home automation, independent living and assistive technology, as well as sports and wellness. Wireless personal area networks, including body sensor networks, are becoming more mature and are considered to be a realistic alternative as communication infrastructure for demanding services. LÄS MER