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Visar resultat 1 - 5 av 78 avhandlingar som matchar ovanstående sökkriterier.

1. 1. Tactile Perception : Role of Friction and Texture

   Författare :Lisa Skedung; Mark Rutland; Siegfried Derler; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; human skin; tactile friction; finger friction; skin friction; skin tribology; biotribology; tactile perception; haptic perception; psychophysics; haptics; surface roughness; surface texture; contact area; nanostructure; model surfaces; surface wrinkling; printing paper; tissue paper; magnitude estimation; multidimensional scaling; tactile threshold; psychophysical relations; smoothness; coolness; coarseness; softness; force sensor; skin lipids; topical formulations; skin creams; taktil friktion; fingerfriktion; hudfriktion; hudtribologi; biotribologi; taktil perception; psykofysik; haptik; ytråhet; ytstruktur; ytveckning; nanostruktur; kontaktarea; modellytor; friktionskoefficient; kraftmätare; bestruket papper; obestruket papper; tryckpapper; mjukpapper; multidimensionell skalning; magnitud estimation; taktilt tröskelvärde; lenhet; mjukhet; svalhet; strävhet; hudlipider; topikala beredningar; hudkräm;

   Sammanfattning : Tactile perception is considered an important contributor to the overall consumer experience of a product. However, what physical properties that create the specifics of tactile perception, are still not completely understood. LÄS MER

3. 2. Gear tribology : friction and surface topography

   Författare :Li Xiao; Bengt-Göran Rosén; Liam Blunt; Högskolan i Halmstad; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Friction; Surface topography; Toughness; Lay; Gears; Power transmission; TECHNOLOGY; TEKNIKVETENSKAP;

   Sammanfattning : The quest for energy efficiency leads to the development of highly efficient power transmissions for vehicles. Gears are some of the most rugged and durable torque transmitters among machine elements. Friction between sliding surfaces at gear teeth is one major source of power loss. LÄS MER

4. 3. Tactile Perception - Role of Physical Properties

   Författare :Lisa Skedung; Mark Rutland; Katrin Danerlöv; Sören Andersson; Ann Maria Cornell; KTH; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Finger Friction; Skin Friction; Paper Friction; Friction Coefficient; Piezoelectric Force Sensor; Skin Tribology; Biotribology; Soft Tribology; Surface Roughness; Profilometry; Coated Paper; Uncoated Paper; Printing Paper; Magazine Paper; Tactile Perception; Psychophysics; Multidimensional Scaling; Magnitude Estimation; Paper Coarseness; Thermal Conductivity; X-ray Photoelectron Spectroscopy.; Chemistry; Kemi;

   Sammanfattning : The aim of this thesis is to interconnect human tactile perception with various physical properties of materials. Tactile perception necessitates contact and relative motion between the skin and the surfaces of interest. LÄS MER

5. 4. On the Multi-Scale Nature of Ski-Snow Friction : Field Testing, Characterisation and Modelling of Cross-Country Ski Performance

   Författare :Kalle Kalliorinne; Andreas Almqvist; Roland Larsson; Steph Forrester; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cross-Country Skiing; Winter Sports; Winter Olympics; Multi-Scale; Sports Equipment; Contact Mechanics; Ski-Camber Profile; Ski-Base Texture; Ski; Snow; Friction; RTK-GNSS; Machine Elements; Maskinelement; Centre - Centre for Sports and Performance Technology SPORTC ; Centrumbildning - Centrum för idrotts- och prestationsteknologi SPORTC ;

   Sammanfattning : The goal of most endurance sports is to get from point A to B in the shortest time possible. Throughout the course, athletes need to overcome the resistive forces that are present in their specific sport. LÄS MER

7. 5. Corporate Ownership and Liquidity in China’s Stock Markets

   Författare :Mingfa Ding; Nationalekonomiska institutionen; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Political connections; QFII; Foreign institutional investor; Liquidity; Block ownership; Real friction; Informational friction; Information asymmetries; Trading activity;

   Sammanfattning : This thesis consists of an introduction and three self-contained chapters that address liquidity issues related to corporate ownership in the Chinese stock markets. The first paper provides new insight into the relation between foreign institutional investors and stock liquidity by employing the Qualified Foreign Institutional Investor (QFII) scheme in the Chinese stock markets. LÄS MER