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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Estructura de procesos y operaciones de telecomunicaciones Taber´s S.A.

Cadenillas Ortega, Taber abdel January 2012 (has links)
El plan piloto de Titulación para la obtención de Grado de Ingeniero Industrial en base a la Experiencia Profesional nace por la necesidad de lograr que los profesionales, obtengan su Título Profesional de una manera alternativa a las que ya existen en la actualidad, para lo cual el profesional debe elaborar un trabajo de investigación de algún tema en que se haya desempeñado durante al menos los tres años consecutivos de trabajo. En esta ocasión, en la empresa TELECOMUNICACIONES TABER`S S.A., bajo la dirección de su Gerente General y Accionista Principal, el Autor aplico sus conocimientos profesionales adquiridos, para obtener su grado de Ingeniero mediante un proceso de investigación, siendo este informe uno de los trabajos de investigación propuestos a la Universidad Privada Ricardo Palma, en función a lo implementado en la empresa. El tema del presente informe muestra la alternativa en actividad sobre la Estructura de Procesos y Operaciones para la Agencia Autorizada de Telefónica Móviles S.A. (TM), identificándose como de gran necesidad e importancia, luego de la experiencia adquirida durante los trabajos profesionales desarrollados dentro de la Gerencia General de la empresa. En el primer capítulo del informe se presentan los aportes al tema que justifican el desarrollo del trabajo en beneficio de la empresa, mediante la Ingeniería Industrial.
2

Revolutionär gerillakrigföring i mellanstatliga konflikter

Ottosson, Oscar January 2017 (has links)
In today's modern society western countries have adopted a regular doctrine for future wars, even though an irregular method have been proven effective against the modern regular army. Due to a balance between the superpowers the doctrines stay the same, but for smaller nations the balance is of lesser importance. The aim of this thesis is to shine light on the problem, and try to give argu-ments for a discussion about how Sweden and other smaller nations can use irregular warfare in order to defend themselves against bigger nations. In order to do that this thesis will investigate how revolutionary guerrilla warfare theory can be applied on international conflicts. Guerilla warfare is the tactic of choice primarily since history show that small numbers can win against overwhelming-ming odds. By Using Robert Tabers theory about successful guerilla warfare, this thesis will compare the war in Vietnam and the second Boer war in order to see how Tabers theory was used or not. The research shows that Tabers theory indeed was used in both conflicts and can somewhat be used to describe the outcome of each conflict.
3

An Investigation of Improving Wear of 390 Die-cast Aluminum Through Hardcoat Anodizing

Whiting, Michael J. 26 August 2005 (has links) (PDF)
The objectives of this research were to investigate the wear that occurs on the surface of a Hardcoat anodized die-cast aluminum surface, which was sliding against a composite rubber belt. This research investigated known wear theories and the results for previous testing to understand the mechanisms that were likely occurring in this application. These theories indicated that the wear occurring may be reduced by changing the hardness of the materials involved. Archard's equation gave tangible evidence of this fact, but related to the base material and not a surface coating. It was hypothesized that Hardcoat anodizing would follow the theory of Archard's equation and increase the wear resistance of 390 die-cast aluminum when sliding against a composite rubber belt. Standardized wear tests were implemented in order to test this theory. The results of the wear tests indicated that the wear resistance of the Hardcoat anodized coating did not follow the wear theories and wore at a higher rate than the base material surfaces. This is likely due to the phenomenon seen by Jiang and Arnell where the surface roughness influenced the wear rate of DLC coatings. They found that there existed a transition point where the wear rate of the surface increased with an increase of surface roughness. The Hardcoat anodized surface was rougher than the surface of the base material due to alloy materials and the processing characteristics of 390 Aluminum die-casting material. Subsequently the Hardcoat anodized surface wore at a higher rate than did the base surface. A case study was conducted on an ATV to investigate the accuracy of the results from the laboratory testing. This case study showed a significant localized wear groove in the stock CVT drive sheave with little wear occurring elsewhere. The Hardcoat anodized CVT drive sheave did not show evidence of a significant localized wear groove as the stock sheave but indicates that wear occurred more evenly across the surface. This wear is evident due to visible aluminum through the Hardcoat layer. In addition, there was a ridge at the outer diameter of the sheave where the belt could not wear the surface. Both of these items indicated that significant wear occurred on the surface, but the presence of a localized wear groove is non-existent.

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