Sökning: "panel study"

Visar resultat 16 - 20 av 478 avhandlingar innehållade orden panel study.

1. 16. Study into the Potential and Feasibility of a Standalone Solar-Wind Hybrid Electric Energy Supply System

   Författare :Getachew Bekele; Björn Palm; Philip Eames; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Wind Speed; Sunshine Duration; Solar Radiation; Feasibility Study; Standalone System; Solar-Wind Hybrid; Thermal energy engineering; Termisk energiteknik;

   Sammanfattning : The tendency to use renewable energy resources has grown continuouslyover the past few decades, be it due to fear over warnings of globalwarming or because of the depletion and short life of fossil fuels or evenas a result of the interest which has developed among researchers doingscientific research into it. This work can be considered as joining any ofthese groups with an objective of giving electric light to the poorpopulation living in one of the poorest nations in the world. LÄS MER

3. 17. Adhesion and Friction - a Study on Tactility

   Författare :Kenneth Duvefelt; Ulf Olofsson; Emile Van Der Heide; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Adhesion; finger; friction; humidity; material; model; tactile friction; tactility; Machine Design; Maskinkonstruktion;

   Sammanfattning : Although we are surrounded by hundreds of surfaces we can still distinguish them from each other simply by touch. The tactile information, interpreted by our brain and given by our fingers, is precise, but to put words to the sensation is very difficult — is it smooth, sticky or harsh? We do not only perceive surfaces differently, we also describe them in our own way. LÄS MER

4. 18. Spatial forest resource competition: an economic study : How increased competition and production flexibility affect woody feedstock markets

   Författare :Elias Olofsson; Robert Lundmark; Hanne Kathrine Sjölie; Luleå tekniska universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Economics; Nationalekonomi;

   Sammanfattning : This thesis explores the Swedish forestry and forest industry sectors, together with their adjoining markets, and examines how these sectors are currently positioned to meet future developments and demands. For this purpose, four specific research questions are formulated, focusing on: (1) the structural composition of forest industry sector and how it will be affected by an increasing feedstock competition; (2) the production flexibility of the forest industry; (3) the resource allocation and price effects from increased feedstock competition; and (4) the potential implications from improved harvesting efficiency. LÄS MER

5. 19. The Hemming Process: A Numerical and Experimental Study

   Författare :Mats Sigvant; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; explicit FE method; joining; hemming; sheet metal forming;

   Sammanfattning : Finite element simulations of hemming, a method used in the automotive industry to join two sheet metal panels by bending the flange of the outer panel over the inner one, are dealt with in this thesis. This method is used mainly for assembly of closures in automotive bodies (i.e. side doors, hoods, trunk lids and tailgates). LÄS MER

7. 20. Time and inequality - A study of individual preferences

   Författare :Hjördis Hardardottir; Nationalekonomiska institutionen; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Behavioral economics; Experimental economics; Individual preferences; Time preferences; Social preferences; income inequality; Health inequality;

   Sammanfattning : This thesis consists of three papers that study individual preferences. The focus of the first two papers is on time preferences. In the third paper, preferences regarding how inequality in health and income should be defined are elicited. LÄS MER