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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.
131

Proposta de um modelo de avaliação de prestadores de serviços logísticos utilizando o AHP : o caso de uma indústria de motores

Vaclavik, Marcia Cristiane January 2011 (has links)
É consenso entre estudiosos e práticos que a Logística desempenha um importante papel na integração da Cadeia de Suprimento dos mercados. Num ambiente cada vez mais competitivo, as organizações procuram práticas de negócios e soluções que possam ajudá-las na busca pelo sucesso. Uma dessas práticas é a terceirização das funções logísticas, através da contratação de empresas especializadas, de forma que as organizações contratantes possam se concentrar no foco do seu negócio, aumentando sua eficiência, melhorando a utilização dos recursos, reduzindo os custos de transporte, reestruturando sua cadeia de suprimentos e aumentando sua lucratividade. Nesse cenário, onde a crescente participação dos prestadores de serviços logísticos (ou, PSLs) torna-se fator estratégico para o crescimento das organizações através de alianças cada vez mais complexas, surge a necessidade de mecanismos de avaliação de desempenho que, efetivamente, reflitam a integração e a flexibilidade dos recursos envolvidos. Assim, o presente estudo se propôs a desenvolver um modelo de avaliação de desempenho de PSLs, através da metodologia da Pesquisa Operacional, apoiado pelo método AHP. A empresa escolhida para a aplicação do modelo foi a MWM International Motores – MIM – e o modelo foi aplicado no processo de transporte nacional que atende o mercado de reposição de peças. Foram avaliados 5 PSLs, através de 3 critérios e 13 atributos, qualitativos e quantitativos. Como principais resultados, verificou-se que a sistemática adotada foi aderente ao ambiente analisado, auxiliando no processo de avaliação e permitindo que a empresa possa estimular seus prestadores de serviços logísticos a melhorar seus processos e o produto destes processos – o próprio serviço prestado, traçando, juntamente com os seus parceiros, um plano de melhoria contínua que vise alcançar resultados melhores para a ambas empresas. / There is consensus among scholars and practitioners that Logistics plays an important role in the integration of the market’s Supply Chain. In an increasingly competitive environment, organizations seek solutions and business practices that can help them in their quest for success. One such practice is the outsourcing of logistics operations through the recruitment of specialized firms, so that the contracting organizations can focus on their business, increasing efficiency, improving resource utilization, reducing transportation costs, restructuring their supply chain and increasing their profitability. In this scenario, where the increasing participation of logistics service providers, known as 3PL (third-party logistics providers) becomes a strategic factor for the growth of organizations through increasingly complex alliances, a need arises for performance evaluation mechanisms that effectively reflect the integration and flexibility of the involved resources. Thus, the present study aims to develop a model to evaluate the performance of 3PLs using the methodology of operational research, supported by the AHP method. The company chosen to implement the model was MWM International Motores (MIM) and the model was applied in the national transport of the spare parts process. There were 5 LSPs evaluated using 3 criteria and 13 attributes, both qualitative and quantitative. The main results showed that the adopted system was considered adherent to the environment, assisting in the evaluation process, and allowing the company to encourage its 3PLs to improve their processes and products - the very service provided, mapping, together with its partners, a plan for continuous improvement aimed at achieving better results for both companies.
132

Modelagem analítica da eficácia do gerenciamento costeiro integrado através de análise multicritério

LIMA, Josilene Pereira 10 March 2015 (has links)
Submitted by Isaac Francisco de Souza Dias (isaac.souzadias@ufpe.br) on 2016-02-04T19:18:17Z No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Dissertacao - Josilene Pereira Lima.pdf: 3535384 bytes, checksum: 12a980ebc381ac5abe704176862e6953 (MD5) / Made available in DSpace on 2016-02-04T19:18:17Z (GMT). No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Dissertacao - Josilene Pereira Lima.pdf: 3535384 bytes, checksum: 12a980ebc381ac5abe704176862e6953 (MD5) Previous issue date: 2015-03-10 / CAPES / A gestão integrada da zona costeira (do inglês Integrated Coastal Zone Management – ICZM) envolve uma abordagem integrada de elementos naturais e antrópicos e deve ser organizada para minimizar os conflitos e utilizar os recursos de forma sustentável. O gerenciamento costeiro integrado pode ser considerado como um processo administrativo permanente onde as ações tomadas, podem ou não serem eficazes para uma comunidade, um estuário ou a costa de uma nação inteira. A partir da definição sobre ICZM e demais legislações brasileiras foram identificadas algumas possíveis variáveis para fazer parte de um modelo de avaliação da eficácia do gerenciamento costeiro integrado. A avaliação da eficácia foi determinada pela análise multicritério através do método Analytic Hierarchy Process – AHP, considerando níveis hierárquicos distribuídos em critérios sociais, econômicos e ambientais, totalizando 11 variáveis. Os critérios para estabelecer os pesos entre as variáveis, foram estabelecidos através de um questionário aplicado a um especialista em gerenciamento costeiro. A saída deste modelo representa um valor numérico, considerando a variação entre 0,000 e 1,000, onde a medida que a nota aumenta melhores são as condições associadas a gestão costeira integrada. Após desenvolvido o modelo analítico, dados amostrais considerando informações espaciais obtidas por sensoriamento remoto e estatísticas obtidas pelo censo do IBGE (2000 e 2010) foram aplicadas ao município da Ilha de Itamaracá-PE. Os resultados numéricos encontrados para este estudo de caso foram 0,344 e 0,401 para os anos de 2000 e 2010 respectivamente. Para analisar os resultados foram considerados um limiar mínimo e máximo da eficácia do gerenciamento costeiro integrado tendo como referência informações das variáveis encontradas para os municípios pertencentes a zona costeira de Pernambuco onde foram obtidos os valores 0,279 e 0,650 representando a variação mínima e máxima encontrada para este Estado. Por fim uma análise separada de cada variável foi efetuada através da construção de mapas temáticos e comparações de informações numéricas identificando assim, o comportamento individual de cada variável no modelo analítico. Destaca-se que a aplicação do método de avaliação multicritério AHP para este estudo de análise da eficácia do gerenciamento costeiro integrado demonstrou ser uma importante ferramenta para diagnosticar e fornecer subsídios à tomada de decisão em ambientes costeiros. / The Integrated Coastal Zone Management (ICZM) involves an integrated approach of natural and anthropic elements and it should be organized to minimize conflicts and apply resources in a sustainability way. The integrated coastal management can be considered as a permanent administrative process where the actions taken, may or may not be effective for a community, an estuary or the coast of an entire nation. From the definition of ICZM and other Brazilian laws was identified a number of possible variables to be part of an evaluation model for the effectiveness of integrated coastal zone management. The efficacy was determined by multi-criteria analysis using the method Analytic Hierarchy Process - AHP considering hierarchical levels distributed in social, economic and environmental criteria, a total of 11 variables. The criteria for establishing the weights between variables were established through an inquiry requested to a specialist in coastal management. The output of this model is a numerical value, considering the variation between 0.000 and 1.000, with the increasing of this score represents a better condition related to integrate coastal zone management. After the analytical model developed, sample data considering spatial information obtained by remote sensing and statistics obtained by the IBGE (Brazilian Institute of Geography and Statistics) census (2000 and 2010) were applied to the municipality of Itamaracá Island - PE. The numerical results for this case study were 0.344 and 0.401 for the years 2000 and 2010 respectively. To analyse the results were considered a minimum and maximum threshold of ICZM effectiveness having as reference information found for the variables considering all Pernambuco coastal zone municipalities, were was obtained 0.279 and 0.650 representing the minimum and maximum variation found for this state. Finally a separate analysis of each variable was performed by building thematic maps and numerical comparisons identifying the behaviour of each variable in the analytical model. It is noteworthy that the application of multi-criteria evaluation method AHP for this study case using ICZM effectiveness has proven to be an important tool to diagnose and provide subsidies to decision making in coastal environments.
133

Seleção de áreas para aterros sanitários baseada em mapeamento geotécnico e Analytic Hierarchy Process - AHP / not available

Gilvana Nogueira Marques 10 December 2002 (has links)
Dentre as várias técnicas de tratamento e disposição dos resíduos sólidos urbanos a disposição em aterros sanitários é a mais usada, devido ao baixo custo e relativa simplicidade operacional. No entanto, a falta de estudos para áreas adequadas é um dos principais fatores limitantes da aplicação desta técnica. É imprescindível o conhecimento dos atributos do meio-físico para avaliar as suas várias interações com o aterro sanitário. Essas interações e a variedade de atributos, dificultam a seleção do local adequado para a instalação do aterro sanitário. Diante disto, há a necessidade de uma metodologia que considere as interações, juntamente com os atributos, e se mostre eficaz na seleção do melhor local para o aterro. Propões-se aqui uma metodologia que considera 14 atributos do meio físico, referentes ao substrato rochoso, materiais inconsolidados, água e feições de relevo. Em vista da variedade de atributos, múltiplas alternativas possíveis e objetivos muitas vezes conflitantes, a serem considerados, foi aplicada a técnica de tomada de decisão denominada processo hierárquico analítico (PHA). O PHA divide um problema complexo em problemas mais simples na forma de uma hierarquia de decisão e, permitiu a obtenção do índice de adequabilidade (I.A.), que representa o valor numérico da adequabilidade de uma determinada áreas para a instalação de aterros sanitários, além de possibilitar a sua hierarquização em relação às áreas adjacentes. Esta metodologia foi aplicada na região de Araraquara, estado de São Paulo, limitada pelo paralelos 21º45\' e 22º00\' sul e meridianos 48º00\' minutos e 48º15\' minutos oeste Gr. O I.A. possibilitou o zoneamento e a classificação de unidades de combinação em favorável, moderada, severa e restritiva para a implantação de um aterro sanitário. A metodologia mostrou-se eficaz e permitiu comparar os 14 atributos de forma numérica, ao introduzir a ) técnica de tomada de decisão através do processo de hierarquia analítica. Desta forma, apresentou as vantagens de diminuir a subjetividade do processo de seleção e ponderar atributos inter-dependentes, direcionados ao objetivo de selecionar áreas para a implantação de um aterro sanitário. / Among several techniques for disposition and treatment of urban solid waste, sanitary landfill is the most employed, by their low cost and relative operational simplicity. However, the lack of research for suitable areas is one of the main problems to the application of this technique. It is necessary to know the attributes of the environment to assess their numerous interactions with the environment sanitary landfill. This interactions and the variety of the attributes becomes diffilcut the selection of the most suitable area to the installation of the sanitary landfill. A methodology to be effiecient in the selection of the best site to this facility, must consider the interactions and the attributes of the environment. This paper proposes a methodology which consider 14 attributes of the environment related to the rocky substrate, unconsolidated materials, water and relief. Because the variety of attributes, multiple possible alternatives and competing objectives to be consider was applied a decision support system (D.S.S.) technical named analytic hierachy process (AHP) which divides a complex problem in simpler ones in the form of a decision hierarchy. The use of AHP reaches the numerical suitability index (SI), of the areas to the installation of a sanitary landfill and becomes possible to hierarchy these areas. This methodology was applied in an area located in the Araraquara region, São Paulo state, limited by the parallels 21º45\' and 22º15\' south and meridians 48º00\' and 48º15\' West gr. The use of the suitability index (SI) permitted the zoning and ranking of the sub-areas and their classification in favorable, moderate, severe and restrictive to the installation of a sanitary landfill. The methodology to compare the 14 attributes in a numerical way by the use of the making decision technique applied to the AHP. By this way had the advantage of less subjectivity of the process of area selection and to weigh inter-dependents attributes, addressed to the objective of to select sites to the sanitary landfill.
134

Metodología de Evaluación y Optimización de Sistemas Renovables Híbridos para Electrificación de Zonas Aisladas de la Red

Peñalvo López, Elisa 05 June 2017 (has links)
The objective of this thesis is the definition and development of a comprehensive methodology of energy planning for areas isolated from the mains, considering not only the energy context of the country and its development towards a sustainable scenario, but also studying the potential of renewable generation in the remote area under study, the ability for demand management and the socio-economic aspects involved in the final decision on what renewable energy solution would be the most appropriate in accordance with the characteristics of the location. The research work is organized into three major phases. The first one defines the algorithm of analysis of the context energy of the country and its evolution towards a future energy scenario based on renewable energies. A second phase which analyzes the best configurations of hybrid renewable systems capable of responding to energy needs in the area, sorting them based on their net present value. And a third one introducing the method of multi-criteria analysis which allows to select, from among all possible configurations identified in the previous stage, the most appropriate to the needs and characteristics of the area to study, taking into account not only economic or technical aspects, but also sociological, political, and environmental criteria. Finally, the developed methodology is applied to a case concrete as example of its potential. An isolated community in the Democratic Republic of the Congo has been selected since 90% of the population living in areas isolated from the mains, and being one of the African countries with the greatest potential for renewable energy generation. / El objetivo de esta tesis es la definición y desarrollo de una metodología integral de planificación energética para zonas aisladas de la red eléctrica que considere no solo el contexto energético del país y su desarrollo hacia un escenario sostenible, sino también el estudio del potencial de generación renovable en la zona remota a estudiar, la capacidad de gestión de la demanda y los aspectos socio-económicos que intervienen en la decisión final sobre qué solución energética renovable sería la más apropiada de acuerdo con las características de la ubicación. El trabajo de investigación se organiza en tres grandes etapas. La primera donde se define el algoritmo de análisis del contexto energético del país y su evolución hacia un escenario energético futuro basado en energías renovables. Una segunda fase donde se analizan las mejores configuraciones de sistemas renovables híbridos capaces de responder a las necesidades energéticas de la zona, clasificándolas en base a su valor neto actual. Y una tercera donde se describe el método de análisis multi-criterio que permite seleccionar, de entre todas las posibles configuraciones identificadas en la etapa anterior, la más adecuada para las necesidades y características de la zona a estudiar, teniendo en cuenta no solo aspectos económicos o técnicos, sino también criterios sociológicos, políticos y medioambientales. Finalmente, se aplica la metodología a un caso concreto en la República Democrática del Congo como ejemplo de su aplicación. Para el análisis del caso de estudio, se ha seleccionado una comunidad aislada en la República Democrática del Congo ya que el 90% de la población vive en zonas aisladas de la red eléctrica, y es uno de los países de África con mayor potencial de generación con energías renovables. / L'objectiu d'aquesta tesi és la definició i desenvolupament d'una metodologia integral de planificació energètica per a zones aïllades de la xarxa elèctrica que considere no solament el context energètic del país i el seu desenvolupament cap a un escenari sostenible, sinó també l'estudi del potencial de generació renovable en la zona remota a estudiar, la capacitat de gestió de la demanda i els aspectes soci-econòmics que intervenen en la decisió final sobre quina solució energètica renovable seria la més apropiada d'acord amb les característiques de la ubicació. El treball de recerca s'organitza en tres grans etapes. La primera on es defineix l'algorisme d'anàlisi del context energètic del país i la seua evolució cap a un escenari energètic futur basat en energies renovables. Una segona fase on s'analitzen les millors configuracions de sistemes renovables híbrids capaços de respondre a les necessitats energètiques de la zona, classificant-les sobre la base del seu valor net actual. I una tercera on es descriu el mètode d'anàlisi multi-criteri que permet seleccionar, d'entre totes les possibles configuracions identificades en l'etapa anterior, la més adequada per a les necessitats i característiques de la zona a estudiar, tenint en compte no sol aspectes econòmics o tècnics, sinó també criteris sociològics, polítics i mediambientals. Finalment, s'aplica la metodologia a un cas concret en la República Democràtica del Congo com a exemple de la seua aplicació. Per a l'anàlisi del cas d'estudi, s'ha seleccionat una comunitat aïllada en la República Democràtica del Congo ja que el 90% de la població viu en zones aïllades de la xarxa elèctrica, i és un dels països d'Àfrica amb major potencial de generació amb energies renovable. / Peñalvo López, E. (2017). Metodología de Evaluación y Optimización de Sistemas Renovables Híbridos para Electrificación de Zonas Aisladas de la Red [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/82308 / TESIS
135

Evaluation of the potential locations for logistics hubs : A case srudy for a logistics company

Alam, Sheikh Ariful January 2013 (has links)
The location of logistics hubs is one of the most crucial success factors for potential economic growth in logistics sector. Since the logistics hub has direct and indirect impacts on different stakeholders including investors, policy makers, infrastructure providers, hub operators, hub users and the community itself, it needs to be considered carefully. Therefore, logistics hubs should be located in such a way that it can provide a better accessibility to three different modes of transportation- road, rail and waterways. The aim of this study is to evaluate the potential locations for logistics hubs and to find out the criteria that affect for the selection of location for logistics hubs. A comprehensive literature study reveals the factors that are affecting the selection of location for logistics hubs and the methods to evaluate those locations considering the criteria. Location selection or evaluation is a typical multi-criteria decision making (MCDM) problem in which performance criteria plays a vital role for the final decision making. Both qualitative and quantitative MCDM methods are applied in this study, where the Analytic Hierarchy Process (AHP) is qualitative and the gravity method is quantitative method. Analytic Hierarchy Process (AHP) is a structured approach to reach the final decision which is one of the best methods of all MCDM problems, used in recent literature to evaluate the location selection problems. A case study is done for the logistics company, Brinova Fastigheter AB in Sweden. This study is followed by AHP method which is considered with selected factors, i.e. highway accessibility, intermodal capacity, port capacity and land availability. Moreover, this study is conducted by evaluating the four major potential locations in Sweden i.e. Stockholm, Göteborg, Helsingborg and Karlshamn for selecting as a logistics hub. Besides, the location for selecting logistics hubs is evaluated by the gravity method, which is a quantitative method to determine the level of accessibility for the selected locations, considering the flow of goods both inbound and outbound and the transport cost between the locations. The result from the AHP method recommend that Göteborg is the best potential location to establish logistic hub whereas the Gravity model represents that Stockholm has the highest level of accessibility for logistics activity. Therefore the study suggested that both Göteborg and Stockholm are considered to be the best potential locations considering in present situation
136

Non-economic loss and damage in the context of climate change: Comparative analysis of Wakayama (Japan) and Khulna (Bangladesh) / 気候変動に係る非経済的ロス&ダメージ:和歌山(日本)及びクルナ(バングラディッシュ)における比較分析

Chiba, Yohei 25 September 2017 (has links)
京都大学 / 0048 / 新制・課程博士 / 博士(地球環境学) / 甲第20744号 / 地環博第167号 / 新制||地環||33(附属図書館) / 京都大学大学院地球環境学舎地球環境学専攻 / (主査)准教授 吉野 章, 教授 岡﨑 健二, 准教授 西前 出 / 学位規則第4条第1項該当 / Doctor of Global Environmental Studies / Kyoto University / DFAM
137

New Method Aiming at Comprehensive Evaluation of Low Impact Development:Case Study in Tianjin, China / 環境影響の少ない都市計画の新たな総合的評価モデルの開発:中国天津市を例として

Li, Yu 25 March 2019 (has links)
京都大学 / 0048 / 新制・課程博士 / 博士(工学) / 甲第21743号 / 工博第4560号 / 新制||工||1711(附属図書館) / 京都大学大学院工学研究科都市社会工学専攻 / (主査)教授 田中 茂信, 准教授 田中 賢治, 教授 中北 英一 / 学位規則第4条第1項該当 / Doctor of Philosophy (Engineering) / Kyoto University / DFAM
138

A generalizable method and case application for development and use of the Aviation Systems – Trust Survey (AS-TS).

Hicks, Jamison 12 May 2023 (has links) (PDF)
Automated systems are integral in the development of modern aircraft, especially for complex military aircraft. Pilot Trust in Automation (TIA) in these systems is vital for optimizing the pilot-vehicle interface and ensuring pilots use the systems appropriately to complete required tasks. The objective of this research was to develop and validate a TIA scale and survey methodology to identify and mitigate trust deficiencies with automated systems for use in Army Aviation testing. There is currently no standard TIA assessment methodology for U.S. Army aviation pilots that identifies trust deficiencies and potential mitigations. A comprehensive literature review was conducted to identify prominent TIA factors present in similar studies. The compiled list of factors and associated definitions were used in a validation study that utilized the Analytic Hierarchy Process (AHP) as a pair-wise comparison tool to identify TIA factors most relevant to Army pilots. A notional survey, the Aviation Systems – Trust Survey (AS-TS), was developed from the identified factors and pilots were used as subjects in scenario-based testing to establish construct validity for the survey. Exploratory factor analysis was conducted after data collection and a validated survey was produced. A follow-on study interviewed Army test and evaluation experts to refine the survey methodology and ensure appropriate context for the recommended mitigations. A final packet was developed that included instructions for the rating scale, associated item definitions, and recommended mitigations for trust deficiencies. Future research will focus on other Army demographics to determine the generalizability of the AS-TS.
139

Key Considerations When Selecting Environmental Rating System : Decision-Making Analysis from Landlord and Tenant Perspective

Sauchyk, Dzmitry January 2017 (has links)
It is estimated that nearly 100 various environmental product certification rating tools are implemented in the United States construction and real estate industries. Choice of a certain building sustainability measurement tool depends on the specific need for reflection of buildings’ impact on the natural and urban environment as well as its tenants. Selection of the appropriate rating system is a decision-making process performed by the project client (landlord of the building, potential or current tenant) which can be affected by clients’ insufficient knowledge or otherwise be biased. The result of selection decision has significant consequences for the project design, construction process complexity and entire life-cycle of the building. In this work, an effort is made to facilitate decision-making process of best environmental rating alternative selection for a “green building” project. The analytic hierarchy process is used to perform unbiased decision making on the environmental rating selection. The decision process has been evaluated from the landlord and the tenant perspectives. The findings of this study show that for the landlord, it would be enough to be certified with a single-attribute rating that covers only one characteristic of building sustainability and, according to AHP analysis, satisfies all significant landlord’s requirements for the environmental rating system. The main conclusion of the study is that selection of environmental rating is a multicriteria problem that should take into consideration the requirements from landlord and tenant as well as the environmental ratings characteristics but not based on the distinct assessment of the mentioned factors.
140

Defining A Stakeholder-relative Model To Measure Academic Department Efficiency At Achieving Quality In Higher Education

Robinson-Bryant, Federica 01 January 2013 (has links)
In a time of strained resources and dynamic environments, the importance of effective and efficient systems is critical. This dissertation was developed to address the need to use feedback from multiple stakeholder groups to define quality and assess an entity’s efficiency at achieving such quality. A decision support model with applicability to diverse domains was introduced to outline the approach. Three phases, (1) quality model development, (2) input-output selection and (3) relative efficiency assessment, captured the essence of the process which also delineates the approach per tool applied. This decision support model was adapted in higher education to assess academic departmental efficiency at achieving stakeholder-relative quality. Phase 1 was accomplished through a three round, Delphi-like study which involved user group refinement. Those results were compared to the criteria of an engineering accreditation body (ABET) to support the model’s validity to capture quality in the College of Engineering & Computer Science, its departments and programs. In Phase 2 the Analytic Hierarchy Process (AHP) was applied to the validated model to quantify the perspective of students, administrators, faculty and employers (SAFE). Using the composite preferences for the collective group (n=74), the model was limited to the top 7 attributes which accounted for about 55% of total preferences. Data corresponding to the resulting variables, referred to as key performance indicators, was collected using various information sources and infused in the data envelopment analysis (DEA) methodology (Phase 3). This process revealed both efficient and inefficient departments while offering transparency of opportunities to maximize quality outputs. Findings validate the potential of the ii Delphi-like, analytic hierarchical, data envelopment analysis approach for administrative decision-making in higher education. However, the availability of more meaningful metrics and data is required to adapt the model for decision making purposes. Several recommendations were included to improve the usability of the decision support model and future research opportunities were identified to extend the analyses inherent and apply the model to alternative areas.

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