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Thesis (M. P. A.)--Texas State University-San Marcos, 2007. / "Fall 2007." Includes bibliographical references (leaves 62-67).

Thesis (Ph.D.)--University of Nebraska-Lincoln, 2009. / Title from title screen (site viewed September 08, 2009). PDF text: 109 p. : col. ill. ; 886 K. UMI publication number: AAT 3352412. Includes bibliographical references. Also available in microfilm and microfiche formats.

Thesis (Ph. D.)--University of Hawaii, 1989. / Includes bibliographical references (leaves 135-153).

Thesis (Ph.D.) - University of Queensland, 2005. / Includes bibliography.

This research focuses on the theoretical analysis, development and experimental evaluation of a water cooled Electromagnetic Acoustic Transducer (EMAT) specifically designed for high-temperature Guided Wave Testing (GWT). Its novel design and detailed calculation of its optimum operating conditions resulted in its effectiveness at high temperatures for both short (500oC) and long-term inspection (250oC). All the steps followed for the theoretical and experimental investigation of the limitations of the existing technology and the development of a probe that can overcome these boundaries are presented. Finite Element Analysis (FEA) was performed for the optimization of the EMAT design and estimation of its ultrasonic and thermal properties at room and high temperatures over time. The wave mode purity profile of the Periodic Permanent Magnet (PPM) EMAT was theoretically studied as well as the effect of temperature rise on its ultrasonic performance. Thermal and Computational Fluid Dynamics (CFD) analysis was accomplished for the EMAT design optimization and calculation of its optimum operating conditions. The experimental validation of the theoretical study was also accomplished. The novel water cooled EMAT was developed and experimentally evaluated regarding its ultrasonic and thermal response at room and high temperatures. An empirical method for the enhancement of EMAT performance and its SNR was established. The wave mode purity characteristics of PPM EMAT were experimentally investigated via Laser vibrometry tests, which agreed with FEA results. The impedance analysis and ultrasonic evaluation of the EMAT at both room and high temperatures against various operating conditions were linked and compared to the results obtained from the ultrasonic, thermal and fluid FEA. In all cases, the experimental study is in good agreement with the theoretical results.

Organisations are continuously re-engineering human resource strategy in order to attract, motivate and retain the best possible talent possible. This is a continuous process because strategies are quickly copied and replicated within industries. Share schemes have been used over a long period of time to attract, motivate and retain employees. The dawn of democracy in South Africa has seen the introduction of broad based black economic empowerment share schemes in a number of organisations. Organisations implemented these share schemes not only to improve BEE score rating but to motivate and retain employee.This research studies the impact that B-BBBEE share schemes have had on employee motivation and retention at a South African organisation. / Dissertation (MBA)--University of Pretoria, 2012. / Gordon Institute of Business Science (GIBS) / unrestricted

The objective of this study was to analyse the impact of business magazine cover stories, albeit positive, neutral or negative, on the share price of the featured company. Two of the aspects of investment finance are rational behaviour and efficient markets. Both of these concepts were explored to understand why a cover story would have an impact on a company share price. Causal research was conducted to analyse the correlation between a magazine cover story and the featured company’s share price. The cover stories were collected form the Financial Mail and Finance Week archives. The holding period returns were calculated and compared to zero to analyse whether there was any momentum or contrarian signals. The holding period returns were also adjusted for that of the average of the resources index (J258) to ascertain whether the returns were abnormal or not. The results have shown that in some instances, such as with neutral cover stories, the markets show strong signs of efficiency. The results of positive cover stories showed these to be momentum indicators, however when the results were adjusted for the resource index, many the positive returns dissipated. Negative cover stories had the strongest results, where after the cover story there were clear contrarian signals. Most of the companies stopped showing negative returns. Copyright / Dissertation (MBA)--University of Pretoria, 2010. / Gordon Institute of Business Science (GIBS) / unrestricted

In this paper we examine abnormal returns during active repurchasing programs and if the intensity of repurchasing programs impacts the returns. Through the Jensen’s Alpha approach our findings show us that positive abnormal returns are experienced by repurchasing firms under our study period that ranges from 2010 to 2019. The results show us that during active repurchasing programs companies have showed positive average annual abnormal returns ranging from 1,8% to 6%. We also find that the intensity of share repurchases does not have a statistically significant effect on the given abnormal returns. However, our results indicate that the abnormal returns are higher when the repurchases occurred, rather than when they are authorized.

La presente Tesis consiste en el desarrollo de un plan de marketing para incrementar la participación de Entel en el mercado de equipos prepago, teniendo como clientes objetivos a los usuarios millennials del Departamento de Lima. El objetivo principal es que Entel aumente de 4% a 8% la participación SIM o chip prepago en el periodo de un año (periodo comprendido entre julio 2015 a junio 2016), soportado por un aumento en un 100% del mercado millennials principalmente los pertenecientes al sector económico “C”, buscando restar participación a los dos principales operadores en el mercado local que son Claro y Movistar, quienes para el año 2014 cuentan con un 41% y 55% de participación respectivamente. El estudio toma en consideración los cambios demográficos presentados en los últimos 2 años, así como los cambios en el aspecto legal (portabilidad, desbloqueo de equipos), social (comportamiento del consumidor de equipos móviles), económico (reducción de los costos de interconexión y de tarifas telefónicas) y tecnológico (ampliación de la banda ancha, uso de la tecnología 4G) que influyen en el crecimiento del mercado de telecomunicaciones. 2 El comportamiento de la industria, cuyos cambios experimentados en los últimos años y el posicionamiento de los competidores actuales como Movistar, Claro y Bitel permiten realizar un análisis acerca del nivel de satisfacción o insatisfacción del usuario final, el cual servirá para la definición de la estrategia a tomar para captar al mercado objetivo. El mercado potencial de usuarios millennials se realizó tomando en cuenta los datos relevantes como el número de millennials que habitan en la ciudad de Lima pertenecientes al nivel socioeconómico “C”, así como el estimado de cuantos equipos smartphone y líneas prepago activas se encuentran vigentes al finalizar el año 2014. Asimismo, se explica las razones por la cual Prepago Entel se encuentra ubicado en la etapa de introducción de su ciclo de vida. Con los resultados obtenidos y el análisis respectivo, se determina que la estrategia genérica a realizar por Entel será la de diferenciación, apoyándose en características de la marca como la transparencia y claridad al transmitir sus mensajes, el excelente servicio que proporcionan y la velocidad en la navegación 4G. Finalmente, se proyecta el nivel de ventas de chips prepago que se espera lograr producto de la puesta en marcha de las estrategias de captación de clientes, además de los ingresos que se obtendrán producto del aumento en el número de recargas promedio. Los resultados se verán contrastados con los costos y gastos de la puesta en marcha de estas iniciativas de marketing, demostrando el resultado positivo en el crecimiento de la participación de mercado para Entel. / Tesis