• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 598
  • 172
  • 137
  • 125
  • 59
  • 51
  • 40
  • 21
  • 19
  • 18
  • 18
  • 18
  • 18
  • 18
  • 17
  • Tagged with
  • 1435
  • 407
  • 393
  • 113
  • 110
  • 108
  • 101
  • 101
  • 100
  • 93
  • 89
  • 83
  • 82
  • 79
  • 72
  • 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.
791

Estudo comparativo de ensaios de compressão confinada em argilas e areias saturadas utilizando o ensaio CRS / Comparative study of confined compression tests on saturated clays and sands using the CRS test

Montemezzo, Rodrigo Fabiano January 2005 (has links)
Nesta dissertação é descrita a construção de um equipamento de ensaio de adensamento com velocidade de deformação constante (CRS) no Laboratório de Geotecnologia (LAGEO). Durante os testes de funcionamento, foram ensaiados dois solos: um solo arenoso obtido junto ao trevo de acesso da BR 290 (Free Way) no município de Santo Antonio da Patrulha e um solo argiloso coletado no pátio da Infraero na Av. Sertório em Porto Alegre. Foram realizados um total de 17 ensaios incluindo ensaios convencionais em amostra indeformada de areia e de argila, ensaios convencionais em amostras deformadas de areia e de argila, ensaios em prensa pneumática com carga incremental e ensaios CRS em amostras deformadas e indeformadas. As diferentes técnicas empregadas na obtenção dos resultados mostraram-se bastante satisfatórias e as concordâncias alcançadas nas curvas de “e x σ’v (esc. log)” mostraram a adequação do equipamento desenvolvido. Os ensaios em argila puderam ser realizados com tempos de 4 a 8 horas com resultados comparáveis aos convencionais, especialmente em relação aos coeficientes de adensamento. A utilização de diferentes velocidades de deformação mostrou a influência da velocidade nos resultados. / In this work an apparatus for consolidation tests with constant rate of strain has been built and tested in the Laboratório de Geotecnologia (LAGEO) of Universidade Federal do Rio Grande do Sul (UFRGS). During the initial tests two soils were tested: a sandy soil obtained close to the road junction of the BR 290 (Free Way) with the access of Santo Antonio da Parulha town and a clayey soil sampled in the Infraero plot at Av. Sertório, Porto Alegre. A total of 17 tests were carried out, including conventional tests on undisturbed samples of the clay and the sandy soil, conventional tests on remoulded samples of sandy and clayey soils, tests on a pneumatic frame with incremental loads and tests with constant rate of strain (CRS) on remoulded and undisturbed specimens. The various test techniques employed resulted in quite comparable results. The similarity of the curves “e x σ’v (log)” showed the quality of the apparatus built. The test on clay were carried out in 4h to 8h with comparable results to the conventional tests which take much longer times. The results are quite similar in relation to the coefficients of consolidation. The use of differente rates of strain in some tests showed the influence of the rate in the test results.
792

Atributos físicos do solo em áreas de plantio direto com e sem escarificação

Marasca, Indiamara [UNESP] 18 June 2010 (has links) (PDF)
Made available in DSpace on 2014-06-11T19:24:40Z (GMT). No. of bitstreams: 0 Previous issue date: 2010-06-18Bitstream added on 2014-06-13T19:11:14Z : No. of bitstreams: 1 marasca_i_me_botfca.pdf: 1217023 bytes, checksum: 894e8d34896850b5dd563a516fd86a0e (MD5) / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / O sistema de plantio direto vem sendo empregado em diversas regiões do Brasil; porém, dependendo do local e da intensidade do tráfego de máquinas, tem provocado a compactação do solo e muitos produtores utilizam como solução a escarificação da área para romper a camada que diminui o crescimento das plantas. O objetivo deste trabalho foi avaliar a influência da escarificação (0,30 m) nas propriedades físicas de um Nitossolo Vermelho distroférrico, comparando os resultados com uma área contigua não escarificada, ambas conduzidas, anteriormente, pelo sistema de plantio direto. Para a determinação da resistência mecânica à penetração, densidade e pressão de pré-consolidação do solo foram amostradas as duas áreas de plantio direto, com escarificação (PDCE) e sem escarificação (PDSE). Utilizando-se a UMAS – Unidade Móvel de Amostragem do Solo, construída pelo NEMPA - Núcleo de Ensaio de Máquinas e Pneus Agroflorestais da FCA/UNESP de Botucatu/SP, equipada com GPS, possibilitando o georeferenciamento dessas amostras. A resistência mecânica do solo à penetração de um cone foi obtida através do penetrômetro hidráulico-eletrônico e as outras propriedades foram avaliadas em laboratório através da coleta de anéis padronizados. A amostragem foi realizada no sistema de malha (“grid”) seguindo as dimensões de 15 x 25 m para a resistência à penetração do solo e para a amostragem com anéis numa dimensão de 15 x 50 m, sendo coletados 160 anéis. As amostras com anéis, para a determinação da densidade e para o ensaio no consolidômetro, foram coletadas nas camadas de 0 a 0,10 m, 0,10 a 0,20 m, 0,20 a 0,30 m e 0,30 a 0,40 m e com os dados obtidos com o penetrômetro foram calculados os índices de cone para essas mesmas camadas. Com os dados obtidos e calculados foram construídos e comparados os mapas desse atributo para as áreas escarificada... / The no-tillage system has been used in several regions of Brazil, but depending on the location and intensity of machinery traffic has caused soil compaction and many producers use as a solution to scarification of the area to break the layer decreases plant growth. The aim of this study was to evaluate the influence of scarification (0.30 m) on physical properties of an Alfisol dystrophic, comparing the results with a contiguous area not scarified, both conducted previously by the system of tillage. To determine the penetration resistance, density and pressure of pre-consolidation of soil were sampled both areas of tillage, with scarification (PDCE) and without scarification (PDSE). Using the MUSS - Mobile Unit of Soil Sampling, built by NEMPA – Nucleus for Agronomic and Forest Machines and Tires Tests and FCA/UNESP, Botucatu/SP, equipped with GPS, allowed the georeferencing of these samples. The mechanical resistance to penetration of a cone penetrometer was obtained through the hydraulic-electronic and other properties were evaluated in the laboratory by collecting rings standardized. The sampling was performed at loop system (grid) following the dimensions of 15 x 25 m for the penetration resistance and soil sampling rings with a dimension of 15 x 50 m, and collected 160 rings. Samples with rings for determining the density and test in consolidometer were collected in layers of 0 to 0.10 m, 0.10 to 0.20 m, 0.20 to 0.30, 0.30 to 0.40 m with the data obtained with the penetrometer were calculated for a cone to those layers. With the data collected and calculated were constructed and compared this attribute maps for the areas scarified and not scarified (Tillage). For the test with consolidometer rings were used with undisturbed samples to derive the load-bearing capacity of soil. Soil management adopted provide a decrease in the density of soil tillage with chiseling at depths... (Complete abstract click electronic access below)
793

Comunicação e comportamento organizacional no contexto de aquisição de empresa

Dal Bó, Micheli 28 August 2015 (has links)
As empresas buscam, além da sobrevivência, diferenciar-se em um ambiente marcado pela competitividade. Deste modo, as operações de F&A (fusão e aquisição) tornam-se comuns, trazendo mudanças estruturais e culturais às empresas e afetando o comportamento organizacional. Isso se reflete em resistência às modificações propostas, o que pode determinar o fracasso dos processos. Nesse contexto, a comunicação pode ser fundamental, auxiliando nos processos de mudanças como um todo. Esta pesquisa teve por objetivo analisar a relação entre comunicação e o comportamento organizacional em uma empresa de processamento de proteína animal, que passou por constantes mudanças após um processo de aquisição. O método foi exploratório (estudo de caso) e quantitativo, sendo a população escolhida formada pelos funcionários operacionais, totalizando 584 pessoas. A coleta de dados foi realizada por meio de 258 questionários distribuídos por sorteio. Os dados foram analisados com auxílio do software SPSS versão 22.0. Os principais resultados indicam que a comunicação possui correlação positiva e significativa com as dimensões motivação, oportunidade de participação, incertezas sobre ambiente futuro e comprometimento organizacional. Na análise dos dados demográficos, foi possível concluir que o comprometimento organizacional apresenta variabilidade significativa em relação à idade dos respondentes e a dimensão motivação por recompensas externas apresenta variabilidade significativa em relação aos respondentes que residem ou não na vila da empresa. O grau de escolaridade responde por variabilidade significativa nas dimensões comprometimento organizacional e motivação pela satisfação das necessidades básicas. / Submitted by Ana Guimarães Pereira (agpereir@ucs.br) on 2016-11-22T15:25:16Z No. of bitstreams: 1 Dissertacao Micheli Dal Bó.pdf: 1360808 bytes, checksum: fddb12653e1893d4fde09601f058df52 (MD5) / Made available in DSpace on 2016-11-22T15:25:16Z (GMT). No. of bitstreams: 1 Dissertacao Micheli Dal Bó.pdf: 1360808 bytes, checksum: fddb12653e1893d4fde09601f058df52 (MD5) Previous issue date: 2016-11-22 / Companies seek, in addition to survival, differentiate themselves in a competitive environment. In this way, operations of M&A (merger and acquisition) are common businessevents, bringing structural and cultural changes and affecting organizational behavior in affected companies. This may cause resistance to the proposed changes, which can determine failure of the M&A process. In this context, communication can be critical and can help the change process as a whole. This research aimed to analyze the relationship between communication and dimensions of organizational behavior in an environment of changes by way of acquisition. The method was exploratory (case study) and quantitative. A survey questionnaire was applied to 258 people randomly selected from a population of 584 front line employees. The data were analyzed using the SPSS software version 22.0. Main results indicate that communication has positive and significant correlation with motivation, opportunity to participate, uncertainty about the future and organizational commitment. In the analysis of demographic data, it was observed that organizational commitment has significant variability in relation to age of the respondents. Motivation due to external rewards had significant variability in relation to respondents who reside or not in the village built on the company's property. Level of education responded for significant variability in organizational commitment and motivation due to satisfaction of basic needs.
794

Risks associated with mergers and acquisitions in business : a Chinese perspective

Yang, Ping Ping January 2012 (has links)
Thesis (DTech (Informatics))--Cape Peninsula University of Technology, 2012. / The rapid growth of Chinese cross-border mergers and acquisitions have attracted global attention to Chinese businesses. As new mechanisms of Chinese expansion in the international business arena, cross-border mergers and acquisitions have necessitated indepth academic studies of the risks associated with these activities from a Chinese business context. The influence of the Chinese government's domination of Chinese business is not only presented as different merger and acquisition tactics, but also as styles of operation and management in the process of integration. In cooperating with different counterparts, the shareholders of both acquiring and acquired companies are seeking solutions to related structural and operational changes. This relies on an effective risk management system to achieve a successful synergistic alliance for value creation. In this research study a conceptual framework was developed to identify risks associated with cross-border mergers and acquisitions. The framework aims at identifying risks at threes levels, namely country, business and management. Risks at business and management level are the result of risks at country level, while risks at country level reflect risks at business and management levels. Therefore, risks identified in Chinese inbound mergers and acquisitions will be valuable risk parameters to Chinese outbound mergers and acquisitions. Cooperation during integration is pivotal to successful mergers and acquisitions. Operational and managerial styles of Chinese businesses are profoundly affected by factors such as the Chinese government's role in business, economic policies, laws and regulations, culture, and so forth. This research identifies risks associated with Chinese post- inbound mergers and acquisitions that are impacted upon by Chinese government domination, from a Chinese business perspective. In approaching this objective, this research studied 34 Chinese inbound mergers and acquisitions using a multiple case study method. The research adopted methodological triangulation for collecting evidence, and aimed at using in-depth case analyses to identify risk factors to add academic value to the field of study. As a result, the research findings strongly indicate that the Chinese government's domination has an extensive and intensive impact on risks associated with Chinese businesses in cross-border cooperation. These identified risks include business strategies and operation, policy implementation, legal compliance, and management performance. Consequently, risks associated with Chinese inbound mergers and acquisitions will mirror the risks of Chinese outbound activities. The research results contribute to the practical application for managing risks associated with both Chinese inbound and outbound mergers and acquisitions. As a solution, mitigation of risks is recommended in the process of both pre- and post- mergers and acquisitions. The research provides valuable insights for both risk management and practitioners in mergers and acquisitions, and facilitates the achievement of process synergy.
795

Verificação do desempenho do ensaio de adensamento CRS comparado ao SIC. / Cheking the performance of consolidation test CRS compared to SIC.

Karina Almeida Vitor 30 November 2013 (has links)
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / A presente dissertação objetiva a verificação do desempenho dos ensaios do tipo CRS, com velocidade controlada, quando comparados aos ensaios de adensamento oedométricos convencionais, SIC. O ensaio SIC é executado em vários estágios de carga, cada qual com vinte e quatro horas de duração e razão unitária entre o incremento de tensão e a tensão anterior, requerendo um prazo total de cerca de 10 dias para sua execução. Já o ensaio de adensamento com velocidade controlada, CRS, tem sua duração bastante reduzida, o que levou diversos pesquisadores da área de Geotecnia a concentrarem esforços no estudo de seu desempenho, visando sua utilização mais ampla. Para este estudo foi adquirido equipamento da empresa Hogentogler Inc., designado por GeoStar. Sua instalação, montagem e calibração foram realizadas no Laboratório de Mecânica dos Solos. Foram executados ensaios em corpos de prova obtidos de amostras de caulim, preparadas em laboratório, e também em amostras de solos originários de dois depósitos de diferentes regiões no Estado do Rio de Janeiro: baixada de Jacarepaguá e Itaboraí. A dissertação procurou detalhar a execução dos ensaios, as dificuldades da interpretação das planilhas originadas pelo sistema de aquisição de dados, acoplado ao equipamento GeoStar, as mudanças efetuadas, as ocorrências não previstas, a análise e interpretação dos resultados e a comparação dos parâmetros obtidos com os ensaios SIC e CRS. Procurou-se estudar o efeito da velocidade de deformação, histórico de tensões, qualidade dos corpos de prova, parâmetros do ensaio, facilidade de execução e desempenho. Verificou-se a simplicidade, rapidez e o desempenho satisfatório do ensaio CRS. Sugere-se estender estudos semelhantes a outros locais e, principalmente, a amostras de qualidade superior, na expectativa de confirmar as conclusões detalhadas nesta pesquisa. / This thesis aims to check the performance of the constant rate of strain consolidation test, CRS, compared to the conventional oedometer test, SIC. The SIC test is usually performed in several load stages with load increment of unity, each stage left on for 24hr. The test duration last nearly 10 days. On the other hand, the constant rate of strain consolidation test, CRS, is performed in a much shorter interval. This aspect led many geotechnical researchers to focus efforts in studying the CRS performance, aiming their wider use in practice. The CRS equipment called GeoStar of Hogentogler Inc. has been imported from EUA for the use in this research. Its installation, assembly and calibration have been carried out in the laboratory of Soil Mechanics. CRS and SIC tests have been performed in caulim specimens, molded in the laboratory, and also in soil samples from two deposits of different sites in Rio de Janeiro State: Jacarepaguá and Itaboraí. The author attempted to detail the tests procedures, the difficulties of interpreting the worksheets that come along with the data acquisition system, necessary changes made in the worksheets, the unforeseen events, analysis and interpretation of results and comparison of the parameters obtained with the SIC and CRS tests. The author studied the effect of strain rate, tension history, sample disturbance, test parameters, ease of execution and test performance. The simplicity, short duration and satisfactory performance of CRS tests have been observed. The author suggests the extension of the studies to other sites, and especially the extraction of higher quality samples, hoping to confirm the findings detailed in this research.
796

Caminhos e descaminhos do processo de democratização de Moçambique : democratização pacífica ou uma trégua tensa?

Cuco, Arcénio Francisco January 2016 (has links)
Este trabalho discute o processo de democratização de Moçambique, iniciado em 1992 com o Acordo Geral de Paz (AGP) entre o Governo liderado pela Frelimo (Frente de Libertação de Moçambique) e a Renamo (Resistência Nacional de Moçambique), que pôs fim a uma guerra civil que durou dezesseis anos. Embora haja outros partidos políticos, o processo de democratização tem-se polarizado entre a Frelimo e a Renamo. Por essa razão a discussão do tema está em torno destes dois partidos, pois suas ações são determinantes para a consolidação da democracia no país. A pesquisa foca-se especialmente ao período 2005-2015 (período do governo de Armando Guebuza) momento em que várias incertezas, quanto à possibilidade da consolidação democrática, marcaram o processo. Neste sentido, a pesquisa tem como questão de partida a seguinte: Quais as possibilidades e limites para uma eventual consolidação democrática em Moçambique? Ou seja, que fatores podem contribuir para que a democracia moçambicana se consolide? Defende-se a ideia de que a democracia em Moçambique está sendo construída num ambiente em que os dois principais atores (Frelimo/Renamo) responsáveis pela assinatura do AGP conservam um poder real. Por um lado a Frelimo controla o Poder desde o AGP, em 1992, e por via disso o controlo da Forças de Defesa e Segurança e, por outro lado, a Renamo mantendo um grupo de milícias armados alegadamente para proteger o seu líder. Esta situação alimenta um conflito armado latente com todos os elementos para brotar a qualquer momento O principal objetivo é analisar criticamente a influência da polarização do processo entre a Frelimo e a Renamo para a consolidação da democracia em Moçambique. Esta discussão se enquadra dentro do tema de transições política e consolidação democrática, que vem dominando alguns debates dentro da Ciência Política, sobretudo aos dilemas da passagem de um regime de caráter autoritário para um regime de natureza democrático e os dilemas da consolidação do sistema democrático. A pesquisa é de natureza documental, destacando-se três tipos de documentos: oficiais (protocolos do AGP, algumas leis fundamentais e alguns vídeos contendo discursos das principais lideranças desses partidos); jornais (Savana e Notícias e Boletim sobre o Processo Político em Moçambique) e; relatórios acadêmicos (Instituto de Estudos Sociais e Económicos, afrobarometer, Africa Governance Monitoring and Advocacy Project). / Seeking to discuss about the Mozambican process of democratization, which began in 1992 with the Peace General Accord between Frelimo (Mozambique Liberation Front), the Party Government leader at the time, and Renamo (Mozambique National Resistance), the armed opposition, which ended a civil war that lasted sixteen, is drawn up this research. Although there are other political parties, the process of democratization is being polarized by Frelimo and Renamo. Thus, the topic of debate is around these two parties because their actions are crucial for the country democracy consolidation. This study focus on Armando Guebuzas governance era (2005-2015) time that so many uncertainties situations, in terms of possibility of democratic consolidation, marked the process. In this term the query is, are there possibilities and limits of an eventual democratic consolidation in Mozambique? In other words, which key factors can contribute to consolidate the Mozambique's democracy? It argue that, democracy in Mozambique is being built in an environment in which the two main actors (Frelimo / Renamo) responsible for signing the GPA retain real power. On the one hand, Frelimo has been in control of Power since the GPA in 1992, and thus, controls the Defense and Security Forces and, on the other hand, Renamo maintaining a group of armed militias allegedly to protect its leader This situation fuels a latent armed conflict with all the elements to sprout at any moment.The main objective is to analyze critically the influence of this polarization of Frelimo and Renamo, on the process, for democracy consolidation in Mozambique. This debate falls on theme of political transition and democratic consolidation, mainstream of debates in political science, especially to the dilemmas of the passage of an authoritarian regime to a system of democratic nature and dilemmas of democratic consolidation system. It´s a documentary research based in three type of documents: official (GPA protocols, some fundamental laws and some videos containing speeches of the main leaders of these parties), newspapers (Savana, Notícias and Boletim sobre o processo político em Moçambique) and; academic reports (Instituto de Estudos Sociais e Económicos, afrobarometer, Africa Governance Monitoring and Advocacy Project).
797

Návrh cestní sítě v komplexní pozemkové úpravě. / The proposal of a road network in the complex land consolidation.

BUCHLOVÁ, Jana January 2007 (has links)
The diploma work is concerned on evaluation of the existing road network in complex land consolidation Brná and on a new road network´s proposal. The cadastral ground Brná has 275 hectares and is situated in the region Vysočina approximately 17 km far from Pelhřimov.
798

Použití map pozemkového katastru pro tvorbu KPÚ. / Usage of cadastre of lands maps for land adjustment production.

DOLEŽALOVÁ, Zuzana January 2008 (has links)
The intention of my thesis is to analyze the volume and the method of application ancient maps by land consolidation, especially land maps. Special attention was paid to document preparation and transformation of grids. The result is, that the ancient maps are used most by renewal of field paths, hydro engineering works, shape of parcels optimization and solution of property ratio.
799

Návrh řešení cestní sítě pro komplexní pozemkovou úpravu. / The proposal of a road network plan in a complex land consolidation project

ZÍDKOVÁ, Eva January 2008 (has links)
The diploma work is concerned on evaluation of the existing road network in complex land consolidation Plav. The aim of this work was to design reconstructions of existing roads and construction of new field roads and evaluate necessary appropriation of land. Further aim is to design a plan of additional arrangements {--} outplanting of attendant growth, drains e.g. and evaluate the role of road network in soil protection from erosion. The cadastral ground Plav has 510 hectares and is situated approximately 8 km far from České Budějovice. Field survey focused on road network as an integral part and basis for evaluation of real state of analysed area. The road network in analysed area is insuffiecient. Low density of road network, unsatisfactory technical state, neglected or missing attendant growth demand a lot of arrangements. Many reconstructions and constructions of new roads were planed.
800

Optimalizace geodetických prací v průběhu a po ukončení projektu komplexních pozemkových úprav. / Optimisation of geodetic tasks during and after finishing of land consolidation project.

PLACHÝ, Vladimír January 2008 (has links)
This thesis has a task to sumarize contemporary procedures of land consolidation project in czech republic, with a view to geodetic activities. It is concerned with particular geodetic tasks step by step and comment upon problems, which usually appears while processing them. There are other possible geodetic outputs utilization expanded too. For overview are there the other phasis of land consolidation project summarized. Harmonogram of activities during land comsolidation project then shows, how the particular phasis concurs.

Page generated in 0.0759 seconds