Thesis (M.S.)--West Virginia University, 2000. / Title from document title page. Document formatted into pages; contains xii, 140 p. : ill. (some col.) Vita. Includes abstract. Includes bibliographical references (p. 137-139).

Chemnitz, Techn. Univ., Diss., 1997.

Zugl.: Duisburg, Essen, Univ., Diss., 2009

No description available.

In this thesis, we investigate the emergence of kinetic processes in finite quantum systems. We first generalize the Redfield theory to describe the dynamics of a small quantum system weakly interacting with an environment of finite heat capacity. We then study in detail the spin-GORM model, a model made of a two-level system interacting with a random matrix environment. By doing this, we verify our new theory and find a critical size of the environment over which kinetic processes occur. We finally study the emergence of a diffusive transport process, on a finite tight-binding subsystem interacting with a fast environment, when the size of subsystem exceeds a critical value.

No description available.

Xu, Xiaoqi. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2011. / Includes bibliographical references (leaves 91-92). / Abstracts in English and Chinese. / Xu, Xiaoqi. / Chapter 1 --- Introduction --- p.1 / Chapter 2 --- Experimental measurements --- p.10 / Chapter 3 --- Review of earlier work --- p.13 / Chapter 3.1 --- Moments of {xP fT) --- p.13 / Chapter 3.2 --- Earlier results of Xr --- p.18 / Chapter 4 --- Probability Density Functions --- p.24 / Chapter 5 --- Scaling behavior of the moments --- p.43 / Chapter 5.1 --- Longest time scale in the problem --- p.43 / Chapter 5.2 --- The maximum order of the moment that can be calculated from a given set of data --- p.47 / Chapter 5.3 --- Moments of the surrogate XT --- p.50 / Chapter 5.4 --- The surrogate XT using water measurements and helium measurements --- p.59 / Chapter 5.4.1 --- PDFs comparison --- p.59 / Chapter 5.4.2 --- Scaling behavior of moments --- p.61 / Chapter 5.5 --- Investigation --- p.64 / Chapter 5.5.1 --- Helium measurements and water measurements --- p.64 / Chapter 5.5.2 --- Xr and Xfr using water measurements --- p.69 / Chapter 5.6 --- Conclusion --- p.73 / Chapter 6 --- Conditional statistics of temperature fluctuations --- p.74 / Chapter 6.1 --- Estimating the maximum order of moment --- p.74 / Chapter 6.2 --- Conditional temperature structure functions using Xfr and Xr --- p.78 / Chapter 6.3 --- Conditional temperature structure functions using x/r and XT at various r in the temperature derivatives --- p.83 / Chapter 7 --- Conclusion --- p.89 / Bibliography --- p.91

In this thesis,I discuss the wave pass on submerged bweakwater,and theheight of submerged breakwater,different slope of submerged breakwater with breaking wave relations.I do experiment to find the regular between breaking wave and the design of submerged breakwater.I use different submerged breakwater,there are two slope.There are 1/2 and 1/5.The height of submerged breakwater is 45 cm,the wide of submerged breakwater is 75 cm.the water deep is from 50cm to 90 cm,Wave cyclical is from 1.2 sec to 2.7 sec,I use H L to choose wave height,and save the data of incident wave.and then I analysis the data to get t K and energy.I also memorize the site of breaking wave and breaking type. From the experiment ,we know that wave do not be broken, be broken, and the regular of breaking wave and breaking type ,so we can use the regular to design the height of submerged breakwater, the slope of submerged breakwater. So we can use the least costs to protect the seacoast. When we know local wave condition, we can design the height of submerged breakwater to break wave that is dangerous for seacoast ,or we want to break wave when the wave height at 1 m or 2 m or others design the height of submerged breakwater. When £m^2h/g is between 0.3 and 2.5,we can find that when R/H0¡¦ is smaller than 1,the wave will break¡CWhen wave break bysubmerged breakwater ,we can find the slope of 1/5 is better than the slope of 1/2 to reduce the wave.Both slope of 1/2 and slope of 1/5 are effective to reduce wave energy at Hi/R=2.

No description available.

The extraction of bitumen (heavy oil) from the oil sands is predominantly achieved through a water-based technology. This involves a slurrying process, typically called conditioning, which is categorized into three equally important steps: bitumen-sand liberation, bitumen coalescence, and air-bitumen attachment. Previous studies found that bitumen recovery was dependent upon process variables such as energy dissipation rate, temperature and caustic addition. Correlations between bitumen droplet size and recovery have also been established; however no investigations linking the aforementioned process variables to the resultant bitumen droplet size had been performed. This work investigates the development of a Batch Extraction Unit built specifically for this investigation as well as a study of the bitumen droplet size as a function of the rate of mechanical energy input. / Chemical Engineering