Sökning: "leakage reduction"

Visar resultat 1 - 5 av 82 avhandlingar innehållade orden leakage reduction.

1. 1. Static Power Reduction and Estimation in CMOS Circuits Considering Emerging Leakage Mechanisms

   Författare :Mindaugas Drazdziulis; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; subthreshold; CMOS; wake-up time; power gating; gate leakage; VLSI;

   Sammanfattning : Due to semiconductor technology advancements, the static power dissipation caused by leakage currents in CMOS circuits is growing at a much faster rate than dynamic power; the dominant power component. As a result, controlling and limiting static power becomes as crucial as controlling dynamic power. LÄS MER

3. 2. Low-Power Clocking and Circuit Techniques for Leakage and Process Variation Compensation

   Författare :Martin Hansson; Atila Alvandpour; Ram Krishnamurthy; Linköpings universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Low-power; resonant clocking; multi-GHz; CMOS; leakage tolerance; low-leakage techniques; process variation; process variation compensation; Electronics; Elektronik;

   Sammanfattning : Over the last four decades the integrated circuit industry has evolved in a tremendous pace. This success has been driven by the scaling of device sizes leading to higher and higher integration capability, which have enabled more functionality and higher performance. LÄS MER

4. 3. Design, Modelling and Control of Electrical Machines - With Applications to Iron-powder Machines and Acoustic Noise

   Författare :David Martinez; Industriell elektroteknik och automation; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; BEM; induction machine; noise prediction; vector control; acoustic noise; HEV; series magnetization; leakage reduction; thermal model; FEM; MEC; claw-poles; SMC; slip-ring-less machine; sound intensity measurements; vibration; Electrical engineering; Elektroteknik;

   Sammanfattning : This thesis consists of two parts, the first dealing with the design of iron-powder synchronous machines, and the second with the analysis and prediction of the acoustic noise in electrical machines. In Part I, a 1.6 kW electrically magnetized claw-pole machine with magnetically conducting end-plates has been analyzed and a prototype tested. LÄS MER

5. 4. On the Escape of Lyman Radiation from Local Galaxies

   Författare :Elisabet Leitet; Nils Bergvall; Erik Zackrisson; Bengt Gustafsson; Duilia F. De Mello; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Galaxies; starbursts; spiral galaxies; Lyman continuum; Lyman alpha; leakage; cosmic reionization; escape fraction; Astronomy; Astronomi;

   Sammanfattning : Cosmic reionization was most likely initiated by star forming dwarf galaxies. Little is known about the physical mechanisms allowing ionizing Lyman continuum (LyC) photons to escape from galaxies, but to learn more we can study local galaxies in detail. LÄS MER

7. 5. Reducing water damage by using a holistic approach to costs, occurrence and solutions in buildings

   Författare :Christian Mattsson; Avdelningen för Installations- och klimatiseringslära; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Water damage; building defects; Tap water; Costs; Sewage; Heating; Leakage; Vattenskador: byggnader; byggnadsdefekt; kostnader; avlopp; värmesystem; läckage; tappvatten;

   Sammanfattning : A large amount of water damage cases and resources are annually reported and spent on water damage in Sweden from cases occurring in buildings from building services such as tap water-, sewage, heating systems, household appliances such as refrigerators, freezers and dishwashers and inadequate waterproof membranes in wet rooms. These water damage cases in buildings cause several problems in the built environment regarding economic, environmental, and social aspects of sustainability such as unhealthy indoor environments due to higher levels of moisture, mold growth, and redundant usage of building materials and resources in reparations and renovations of water damaged constructions, immense amounts of monetary resources spent annually by both residents, building owners and insurance companies to restore the buildings to their designed purpose. LÄS MER