Sökning: "Weighting"

Visar resultat 16 - 20 av 155 avhandlingar innehållade ordet Weighting.

1. 16. Photon Counting X-ray Detector Systems

   Författare :Börje Norlin; Christer Fröjdh; Hans-Erik Nilsson; Kenway Smith; Mittuniversitetet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Monte Carlo simulation; Three-dimensional; Energy weighting; X-ray; Pixel detector; Charge sharing; Imaging; Medipix; Spectroscopy; Dental diagnosis; Image quality; Electronics; Elektronik;

   Sammanfattning : This licentiate thesis concerns the development and characterisation of X-ray imaging detector systems. “Colour” X-ray imaging opens up new perspectives within the fields of medical X-ray diagnosis and also in industrial X-ray quality control. LÄS MER

3. 17. Konvertering av direkteluppvärmda flerbostadsområden-Beslutsunderlag och drivkrafter

   Författare :Magnus Stjerndahl; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; weighting methods; residential buildings; energy efficiency; environmental assessment; direct-acting electric heating; incentives; heat supply; heating systems; life cycle cost LCC ; life cycle assessment LCA ; decision making;

   Sammanfattning : The Swedish society is interested in reducing the use of electricity and especially electricity for heating purposes. For this purpose governmental subsidies have been introduced to support a change from electric heating to other types of heat supply systems. Owners of single and multifamily buildings can apply for the investment subsidy. LÄS MER

4. 18. Difficulties to Read and Write Under Lateral Vibration Exposure : Contextual Studies Of Train Passengers Ride Comfort

   Författare :Jerker Sundström; Shafiquzzaman Khan; Neil J. Mansfield; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; lateral vibrations; passenger activities; reading; writing; sitting posture; frequency weighting; rated difficulty; field study; laboratory study; transient vibrations; stationary vibrations.; Vehicle engineering; Farkostteknik;

   Sammanfattning : Many people use the train both as a daily means of transport as well as a working place to carry out activities such as reading or writing. There are, however, several important factors in this environment that will hamper good performance of such activities. LÄS MER

5. 19. Thermal Modeling of Walls, Foundations and Whole Buildings Using Dynamic Thermal Networks

   Författare :Eva-Lotta Wentzel; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; walls; weighting functions; Dynamic thermal networks; building; dynamic heat conduction; foundation; step-response functions;

   Sammanfattning : The modeling of the energy balance of buildings is a major task in building physics. A new theory called dynamic thermal networks is under development at the Building Physics Research Group at Chalmers. The calculations are based on step-response functions, and the problems are illustrated in so-called dynamic networks. LÄS MER

7. 20. Light-weighting Methodology in Rail Vehicle Design through Introduction of Load Carrying Sandwich Panels

   Författare :David Wennberg; Sebastian Stichel; Per Wennhage; Ragnar Larsson; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; sandwich panels; rail vehicle; lightweight; optimisation; carbody; Vehicle engineering; Farkostteknik; Construction engineering; Konstruktionsteknik; Construction materials; Konstruktionsmaterial;

   Sammanfattning : Lightweight design in rail vehicles has been important for quite some time. Structures have been optimised to fulfill their purpose and cut unnecessary weight to reach allowable axle loads. Classically this is done by using steel, thin-walled structures, throughout the car body, or, alternatively, power-pressed aluminum profiles. LÄS MER