Sökning: "2004"
Visar resultat 26 - 30 av 4336 avhandlingar innehållade ordet 2004.
26. Wearable computer interaction issues in mediated human to human communication
Sammanfattning : This thesis explores the use of wearable computers as mediators for human to human communication. The user of a wearable computer can deliver live video, audio and commentary from a remote location, allowing local participants to experience it and interact with people on the other side. LÄS MER
27. Evaluation of rock mass strength criteria
Sammanfattning : Knowledge of the rock mass behaviour in general, the failure process and the strength in particular, is important for the design of all kinds of underground excavations. One of the most common ways of estimating the rock mass strength is by using a failure criterion. LÄS MER
28. Gummiklipp som konstruktionsmaterial i mark- och anläggningstekniska tillämpningar
Sammanfattning : I och med EG:s avfallsdirektiv från 1999 är det förbjudet att deponera hela däck från och med 2003 och förbjudet att deponera fragmenterade däck (gummiklipp) från och med 2006. Lagstiftningen syftar till ökad återanvändning eller återvinning av uttjänta däck. LÄS MER
29. Variables affecting stress development and resin conversion in light-cured dental composites
Sammanfattning : The general aim of this dissertation was to identify and investigate factors that can be used to minimize stress development in light cured dental resins without compromising the conversion level of the polymer. Modulus of elasticity, polymerization contraction strain, degree of conversion and shrinkage of light-cure dental composites were determined after curing with three different light power densities where total irradiated energy (J/cm2) kept constant. LÄS MER
30. Residual stress in a T-butt joint weld : cylinder versus plane plate geometry
Sammanfattning : The welding process introduces residual stress originating from the heating, melting and cooling of the material. From the point of view of fatigue and stress corrosion cracking, the weld residual stress perpendicular to the weld axis is of particular interest. LÄS MER