Search for dissertations about: "Current crowding"

Showing result 6 - 10 of 16 swedish dissertations containing the words Current crowding.

2. 6. Modeling and characterization of novel MOS devices

   Author : Stefan Persson; KTH; []
   Keywords : MOSFET; SiGe; high-k dielectric; metal gate; mobility; charge sheet model; retrograde channel structure; intrinsic charge; intrinsic capacitance; contact resistivity;

   Abstract : Challenges with integrating high-κ gate dielectric,retrograde Si1-xGexchannel and silicided contacts in future CMOStechnologies are investigated experimentally and theoreticallyin this thesis. ρMOSFETs with either Si or strained Si1-xGex surface-channel and different high-κgate dielectric are examined. READ MORE

4. 7. Enterobacteriaceae Producing Extended-Spectrum Beta-Lactamases : Aspects of Detection, Epidemiology and Control

   Author : Birgitta Lytsy; Åsa Melhus; Dan Andersson; Håkan Hanberger; Uppsala universitet; []
   Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Extended-spectrum beta-lactamase; ESBL; pulse-field gel elctrophoresis; typing methods; infection control; typningsmetoder; vårdhygien; Bacteriology; Bakteriologi; Clinical Bacteriology; Klinisk bakteriologi;

   Abstract : Enterobacteriaceae belong to the normal enteric flora in humans and may cause infections. Escherichia coli is the leading urinary tract pathogen with septicaemic potential, whereas Klebsiella pneumoniae causes opportunistic infections and often outbreaks in hospital settings. READ MORE

5. 8. Bacterial adhesion to polyelectrolyte modified materials based on nanocellulose

   Author : Jonatan Henschen; Lars Wågberg; Per Larsson; Josefin Larsson; Aji Mathew; Michael Malkoch; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Bacterial adhesion; cellulose nanofibrils; polymer adsorption; polyvinylamine; Fiber- och polymervetenskap; Fibre and Polymer Science;

   Abstract : Since the introduction of materials based on cellulose nanofibrils (CNFs), these materials have been studied extensively and are suggested to be suitable for use in, for example, hygiene and health care products. A property not very well studied but that could further increase the usability of CNF products is the possibility of controlling bacterial adhesion to the materials. READ MORE

6. 9. Creating Ultrafast Biosensors for Neuroscience

   Author : Yuanmo Wang; Chalmers tekniska högskola; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; quantification; glucose; choline oxidase; gold nanoparticles; enzyme monolayer; enzymatic activity; Biosensor; adsorption; brain slice; enzyme stability; acetylcholine esterase; artificial cell; exocytosis; glucose oxidase; deformation; glutamate; glutamate oxidase; acetylcholine; amperometry;

   Abstract : Neuronal communication is the basis for all our brain function and relies on regulated exocytosis, a cell function that involves release of quantal amounts of neurotransmitters into the gap space between interconnected neurons to serve as chemical signals. To study exocytosis, which is a fast process that occurs on the timescale of sub-milliseconds to milliseconds, a toolbox of analytical methods has been developed where the electrochemical based techniques offer quantitative and sufficient high temporal recording speed. READ MORE

7. 10. Bipolar Transistor Parameter Extraction, Modeling and Test Structure Design

   Author : Fredrik Ingvarson; Chalmers tekniska högskola; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Abstract : In this thesis, techniques are presented for determining the model parameter values required by compact bipolar transistor models in circuit simulators. Specifically, extraction of the Early voltages and the transistor series resistances are treated in detail. Extraction of other compact model parameters is also covered. READ MORE