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Perosomus Elumbus in a Goat in Trinidad, West Indies

Experimental Study of Separated Ramp-induced Shock/boundary-layer Interaction with Upstream Micro-vortex Generation at Mach 2.5

Shock wave/boundary layer interactions (SBLIs) are important issues for high-speed vehicles. SBLIs reduce the performance of aerodynamic surfaces and engine inlets, amongst a number of adverse effects. Micro-vortex generators (MVGs) are a flow control method with strong potential to mitigate the effects of SBLI by energizing the boundary layer through momentum transfers from the freestream. They have been implemented in actual configurations at low speeds. The present research includes a combined experimental and theoretical analysis of the evolution of the perturbation downstream the MVG, the formation of vortices, and their interaction with the shock front. Experiments were performed with a baseline MVG configuration of 90° trailing edge on flat plate, ramp alone, and also with MVG mounted ahead of a 20° ramp. The surface flow visualization and particle image velocimetry (PIV) results are presented; the surface flow visualization shows a substantial suppression of SBLIs. A new method to quantify the effectiveness of the MVG on the shock recompression is presented. Moreover, the PIV results were used as the initial input values for the simulation work. A theoretical analysis of the interaction of the MVG perturbation with the boundary layer is performed by assuming linear dynamics of the perturbation. The major assumption is that the interaction between MVG perturbation and the shear flow is affected by transient growth as a result of the non-orthogonality of the linearized Navier-Stokes equations. A new method to perform the projection of the measured perturbation on the continuous modes of the boundary layer is presented. The method takes advantage of the biorthogonality of the direct and adjoint modes. The implementation of such a method using both the Chebyshev polynomials and a shooting algorithm is discussed. The results of the theoretical analysis are encouraging and display a similar trend as the experiments. Both experimental and theoretical results yield perturbation decay not far downstream from the MVG: about 72 mm for experiments, and about 95 mm for simulation. The experiments display two distinguishable growths downstream of MVG, while the simulation predicted one small growth at the very beginning. Both works show trends that agree well with each other.

A new method to quantify the effectiveness of the MVG on the shock recompression is presented. Moreover, the PIV results were used as the initial input values for the simulation work.

Psychobiology and Treatment of Anorexia Nervosa and Bulimia Nervosa

During the past 15 years, research on anorexia nervosa and bulimia nervosa has grown drastically, providing empirical evidence for a more accurate classification schema of eating disorders. This book brings together the most recent clinical research concerning all facets of these distinct but interrelated disorders, providing a current overview of the psychobiology and treatment of anorexia nervosa and bulimia nervosa. Written by experts in the field, Psychobiology and Treatment of Anorexia Nervosa and Bulimia Nervosa reviews a diagnostic schema of eating disorders from the perspectives of cross-cultural, longitudinal, and family studies. It presents the psychobiology of anorexia and bulimia nervosa in the context of neuroendocrinology and the psychological perceptions associated with eating behavior. The book also examines the family's contribution to the development and maintenance of eating disorders from the perspective of family interaction studies. The final section of this book reviews the latest developments in the integration of psychodynamic concepts into the psychotherapy of anorexia and bulimia nervosa, covers cognitive behavioral approaches, and examines the pharmacological treatment of eating disorders.

This book brings together the most recent clinical research concerning all facets of these distinct but interrelated disorders, providing a current overview of the psychobiology and treatment of anorexia nervosa and bulimia nervosa.

Managing for Total Quality

From Deming to Taguchi and SPC

Covers on-line and off-line quality control, applications in service and manufacturing companies, statistical theory, Japanese approaches, and Western standards

Crosby, P.B. (1979), Quality is Free: The art of making quality certain, McGraw-
Hill: New York. Crosby, P.B. (1984), Quality without Tears, McGraw-Hill: New
York. Cullen, J. and Hollingum, J. (1987), Implementing Total Quality, IFS
Publications: ...

Data-collection methods, quality-assurance data, and site considerations for total dissolved gas monitoring, lower Columbia River, Oregon and Washington, 2000

Total quality management in local government

development of a survey instrument for line-worker attitude evaluations

Quality assurance data, comparison to water quality standards, and site considerations for total dissolved gas and water temperature, lower Columbia River, Oregon and Washington, 2001

Multiple Tax Amnesties and Compliance in South Africa