Sökning: "MAST"

Visar resultat 1 - 5 av 214 avhandlingar innehållade ordet MAST.

1. 1. Study of Collimated Neutron Flux Monitors for MAST and MAST Upgrade

   Författare :Siriyaporn Sangaroon; Göran Ericsson; Marco Cecconello; Matthias Weiszflog; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Fusion; Plasma diagnostics; Neutron camera; collimated neutron flux monitor; MAST; MAST Upgrade; ITER; Applied Nuclear Physics; Tillämpad kärnfysik;

   Sammanfattning : Measurements of the neutron emission, resulting from nuclear fusion reactions between the hydrogen isotopes deuterium and tritium, can provide a wealth of information on the confinement properties of fusion plasmas and how these are affected by Magneto-Hydro-Dynamic (MHD) instabilities.This thesis describes work aimed to develop neutron measurement techniques for nuclear fusion plasma experiments, specifically regarding the performance and design of collimated neutron flux monitors (neutron cameras) for the Mega Ampere Spherical Tokamak, MAST, and for MAST Upgrade. LÄS MER

3. 2. Human-Robot Interaction for Semi-Autonomous Assistive Robots : Empirical Studies and an Interaction Concept for Supporting Elderly People at Home

   Författare :Marcus Mast; Arne Jönsson; Michael Burmester; Jonas Lundberg; Tony Belpaeme; Linköpings universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Semi-autonomous assistive robots; human-robot interaction; user interface design; teleoperation; telemanipulation; elderly people; global environment maps; stereoscopy; Semi-autonoma robotar; människa-robotinteraktion; gränssnittsdesign; distansstyrning; distansmanipulation; äldre; globala omgivningskartor; stereoskopisk;

   Sammanfattning : The research addresses current shortcomings of autonomous service robots operating in domestic environments by considering the concept of a semi-autonomous robot that would be supported by human remote operators whenever the robot cannot handle a task autonomously. The main research objective was to investigate how to design the human-robot interaction for a robotic system to assist elderly people with physical tasks at home according to this conceptual idea. LÄS MER

4. 3. Mast Cells as Sentinels : Role of serglycin and mast cell proteases in infection and inflammation

   Författare :Ananya Roy; Magnus Åbrink; Olaf Utermöhlen; Uppsala universitet; []
   Nyckelord :mast cells; serglycin; chymase; infection; parasite; Immunologi; Immunology;

   Sammanfattning : Mast cells (MCs), normally classified into connective tissue MCs and mucosal MCs, are highly granulated cells found in the interface between the interior and the exterior environment of our body, e.g. skin, airways and gastro-intestinal tract. LÄS MER

5. 4. Investigation of perforated mufflers and plates

   Författare :Ying Guo; Mast Abom; Ragnar Glav; KTH; []
   Nyckelord :sound; perforated; micro-perforated; muffler; flow; hole; impedance; model; experiment;

   Sammanfattning :     Mufflers are used in for instance exhaust system of cars or trucks to reduce noise. Perforated pipes are one of the main components of modern mufflers. To study acoustic properties of mufflers with perforated pipe is one of the main targets of this thesis. LÄS MER

7. 5. Induction of Mast Cell Apoptosis via Granule Permeabilization : A Novel Approach to Target Mast Cells

   Författare :Aida Paivandy; Gunnar Pejler; Magda Babina; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Mast cells; Granules; Apoptosis; Reactive oxygen species; ROS; Lysosomotropic agents; Mefloquine; Immunologi; Immunology; Biokemi; Biochemistry;

   Sammanfattning : Mast cells are densely granulated tissue-resident immune cells that play an important role in orchestrating inflammatory responses. Dysregulated increases in the numbers and activation status of mast cells can have deleterious consequences for the body in various inflammatory diseases. LÄS MER