Sökning: "field study"
Visar resultat 21 - 25 av 5525 avhandlingar innehållade orden field study.
21. Structural analysis and condition monitoring of grinding mills : a case study
Sammanfattning : Grinding mills are large rotating cylindrical steel vessels used to grind ore and minerals into finer particles. The mills are important parts of the mineral enrichment process and the grinding is the last step of the comminution process, where the particle size is reduced by a combination of abrasion and impact. LÄS MER
22. Soil Modification by adding small amounts of binders : A laboratory study
Sammanfattning : Soil stabilization through addition of a hydraulic binder is a method frequently used to modify and improve engineering properties of soft soils. Additives like cement and lime are typically used as stabilizers. More recently, industrial by-products, such as fly ashes, cement kiln dust, blast furnace slags and other slags have been used. LÄS MER
23. Electronic Structure and Transport in Nanofabricated Low-Dimensional Semiconductor Systems : A theoretical study
Sammanfattning : Systematic studies of the transport properties in one type of low-dimensional semiconductor nanostructures, in which the motion of carriers is governed by quantum mechanics, are presented in this thesis. In addition, the electronic states in lowdimensional systems fabricated from GaAs / Al?Ga1-?As heterostructures have been investigated by using both transport methods and the static calculations. LÄS MER
24. Diamond Based Electronics and Valleytronics : An experimental study
Sammanfattning : Diamond is a promising semiconductor material for high power, high voltage, high temperature and high frequency applications due to its remarkable material properties: it has the highest thermal conductivity, it is the hardest material, chemically inert, radiation hard and has the widest transparency in the electromagnetic spectrum. It also exhibits excellent electrical properties like high breakdown field, high mobilities and a wide bandgap. LÄS MER
25. Kreativitetens kännetecken : En fenomenologisk studie
Sammanfattning : Creativity is highly sought after in our society, but that is far from obvious what is really meant by it. Many researchers in the field of creativity stress the lack of clarity, and it is described as a divided felt. The aim of this thesis is to clarify the meaning structure of the phenomenon of creativity, i.e. LÄS MER