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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.
41

Técnica experimental para quantificar a eficiência de distribuidores de líquidos industriais do tipo tubos perfurados paralelos. / Liquid aspersion effuciency quantification experiment: application in ladder type distributors.

Moraes, Marlene Silva de 07 July 2008 (has links)
O presente texto descreve um método experimental simples para comparar a eficiência de distribuidores de líquido empregados nas indústrias de tratamento de minérios em lavadores, classificadores e moinhos e nas indústrias de processos químicos. A técnica consiste basicamente em analisar a dispersão pelo desvio padrão da massa do líquido coletado em tubos verticais dispostos em arranjo quadrático colocados abaixo do distribuidor. Como exemplo de aplicação, empregouse para a coleta da massa de líquido uma unidade piloto, montada no Laboratório de Engenharia Química da Universidade Santa Cecília em Santos, com um banco de 21 tubos verticais de 52 mm de diâmetro interno e 800 mm de comprimento. Uma manta acrílica que não dispersa o líquido com 50 mm de espessura foi fixada entre o distribuidor e o banco de tubos para evitar respingos. Foram realizados ensaios com nove distribuidores do tipo espinha de peixe de 4 tubos paralelos cada, para uma coluna piloto com 400 mm de diâmetro. A literatura é discordante no que concerne aos parâmetros de projeto e eficiência destes distribuidores. Variaram-se o número (n) de orifícios (95, 127 e 159 furos/m2, 12, 16 e 20 furos por distribuidor) o diâmetro (d) dos orifícios (2, 3 e 4 mm) e as vazões de entrada indicadas por rotâmetro nos distribuidores (q) de 1,2; 1,4 e 1,6 m3/h. A melhor eficiência de espalhamento pelo menor desvio padrão (0,302) foi obtida com n de 159 furos/m2, d de 2 mm e q de 1,4 m3/h indicando as limitações dos parâmetros de projeto da literatura. A pressão (p), na entrada do distribuidor para esta condição, foi de apenas 0,51 kgf/cm2. A relação adimensional entre a área da seção do tubo de alimentação e a somatória da área dos furos foi de 5,81, a vazão volumétrica total por unidade de área da seção da coluna para esta melhor condição foi de 11,32 m3/(h.m2) e a velocidade média (v) em cada orifício foi de 6,31 m/s. Portanto, o método proposto permite comparar e quantificar a eficiência de distribuidores além de demonstrar a não validade de alguns parâmetros de projeto recomendados pela literatura. / The current text describes a simple experimental method in order to compare the efficiency of the liquid distributors applied at the ore treatment industries in washers, classifiers and mills as well as at the chemical processing industries. The technique basically consist of analyzing the dispersion through the standard deviation of the liquid mass which was collected in vertical pipes placed in a square way under the distributor. As an example of us usage, it has been applied a pilot scale for collecting the liquid mass, installed at the Santa Cecília Universitys Chemical Engineering Laboratory in Santos, with a setting of 21 vertical tubes measuring 52 mm in internal diameter and 800 mm in length. A 50 mm thick acrylic blanket was fixed between the distributor and the pipe setting in order to avoid splashes. Some experiments have been made with a ladder-tipe distributors containing 4 parallel tubes each, for a pilot column of 400 mm in diameter. The literature shows disagreement regarding the characteristics of the project and the efficiency of the distributors. The number of holes has varied (n) 95, 127 and 159 holes/m2; 12, 16 and 20 holes for distributor, the diameter of the holes (d) 2, 3 and 4 mm and the flow of entrance in the distributors (q) of 1,2; 1,4 and 1,6 m3/h. The best efficiency of splashing of the lowest deviation pattern (0,302) was achieved with n of 159 holes/m2, d of 2 mm and q of 1,4 m3/h showing the limitation of characteristics of the project literature. The pressure (p), for this condition in the distributor entrance, was only 0,51 kgf/cm2. The measuring relation between the area of the section of the feeding pipe and the addition of the area of the roles was 5,81, the total volume of the out flow for unit of the area of the column section for this better condition was 11,32 m3/(h m2) and the average speed (v), in each hole was 6,31 m/s. Finally, the indicated method permits the comparison and quantification of the efficiency of the distributors, besides showing that some of the project concepts are not valid and the literature does not recommend them.
42

Millennium bridge: a contemporary Australian history

Beaton, Hilary January 2006 (has links)
The script, Millennium Bridge, is an investigation into the passions and fears that are shaping contemporary Australia today. Charting the political climate of the past decade, at the play's centre a man is building a bridge from Australia to Asia. The central dramatic question being asked is &quotIn an environment where the emphasis on economic prosperity overrides that of human rights and freedom of speech--what will be the consequences for the Australian people?" The accompanying analysis of the ten-year period it took to write Millennium Bridge illuminates the significance of institutional issues on a play and playwright's development. Written from the perspective of a mid-career playwright, the paper argues that the professional and personal circumstances within which a work of art is created (and their effect on the playwright's confidence and financial capacities) are a significant determinant of the productivity of playwrights.
43

Change and Growth of Australian Music Value Chains

Steedman, Sam, sam.steedman@gmail.com January 2009 (has links)
The Australian music industry is growing and developing yet specific information about the ways in which distribution systems develop is limited. In this study I examined the growth and change of the Australian music value chain. This includes the development of digital distribution systems and the effect that peer-to-peer technology has on system development, specifically the disintermediation between consumers and artists to the detriment of the multinational value chains. The drivers of this change are broken into social and technical elements in order to describe the growth and change occurring. The method used included a comprehensive literature review and use of secondary data from key music industry associations. The Australian music industry is a subset of the global industry and is led by foreign markets and their methods in which music content moves from the creators to the consumers. The consumption patterns of Australian music consumers are changing. The overall value of the music industry is dropping as the new digital downloads market emerges and the overall volume of sales increases; this reflects similar trends in foreign markets. CD single sales have dropped and digital single sales (in MP3 format) have increased. However, there needs to be a balance in the future development of Australian music distribution systems between the needs of music consumers and the sustainability of music companies, where there is both connectivity and steady revenue flow. There are technical elements that have caused a movement away from the traditional forms of music distribution as new technologies facilitate the change, such as Apple's iPod and broadband Internet connections. Advancement of distribution systems has increased piracy levels and the response has been the implementation of digital rights management (DRM), which prevents connectivity. There are also social elements that affect growth and change such as connectivity, or the consumers freedom to choose when, where and how to listen to their music. When music product has a restriction placed upon it its value to the consumer drops. Multinational music companies have failed to recognise the value users place on the freedom to pick and choose and have tried to control rather than to co-develop systems that meets both parties needs.
44

Técnica experimental para quantificar a eficiência de distribuidores de líquidos industriais do tipo tubos perfurados paralelos. / Liquid aspersion effuciency quantification experiment: application in ladder type distributors.

Marlene Silva de Moraes 07 July 2008 (has links)
O presente texto descreve um método experimental simples para comparar a eficiência de distribuidores de líquido empregados nas indústrias de tratamento de minérios em lavadores, classificadores e moinhos e nas indústrias de processos químicos. A técnica consiste basicamente em analisar a dispersão pelo desvio padrão da massa do líquido coletado em tubos verticais dispostos em arranjo quadrático colocados abaixo do distribuidor. Como exemplo de aplicação, empregouse para a coleta da massa de líquido uma unidade piloto, montada no Laboratório de Engenharia Química da Universidade Santa Cecília em Santos, com um banco de 21 tubos verticais de 52 mm de diâmetro interno e 800 mm de comprimento. Uma manta acrílica que não dispersa o líquido com 50 mm de espessura foi fixada entre o distribuidor e o banco de tubos para evitar respingos. Foram realizados ensaios com nove distribuidores do tipo espinha de peixe de 4 tubos paralelos cada, para uma coluna piloto com 400 mm de diâmetro. A literatura é discordante no que concerne aos parâmetros de projeto e eficiência destes distribuidores. Variaram-se o número (n) de orifícios (95, 127 e 159 furos/m2, 12, 16 e 20 furos por distribuidor) o diâmetro (d) dos orifícios (2, 3 e 4 mm) e as vazões de entrada indicadas por rotâmetro nos distribuidores (q) de 1,2; 1,4 e 1,6 m3/h. A melhor eficiência de espalhamento pelo menor desvio padrão (0,302) foi obtida com n de 159 furos/m2, d de 2 mm e q de 1,4 m3/h indicando as limitações dos parâmetros de projeto da literatura. A pressão (p), na entrada do distribuidor para esta condição, foi de apenas 0,51 kgf/cm2. A relação adimensional entre a área da seção do tubo de alimentação e a somatória da área dos furos foi de 5,81, a vazão volumétrica total por unidade de área da seção da coluna para esta melhor condição foi de 11,32 m3/(h.m2) e a velocidade média (v) em cada orifício foi de 6,31 m/s. Portanto, o método proposto permite comparar e quantificar a eficiência de distribuidores além de demonstrar a não validade de alguns parâmetros de projeto recomendados pela literatura. / The current text describes a simple experimental method in order to compare the efficiency of the liquid distributors applied at the ore treatment industries in washers, classifiers and mills as well as at the chemical processing industries. The technique basically consist of analyzing the dispersion through the standard deviation of the liquid mass which was collected in vertical pipes placed in a square way under the distributor. As an example of us usage, it has been applied a pilot scale for collecting the liquid mass, installed at the Santa Cecília Universitys Chemical Engineering Laboratory in Santos, with a setting of 21 vertical tubes measuring 52 mm in internal diameter and 800 mm in length. A 50 mm thick acrylic blanket was fixed between the distributor and the pipe setting in order to avoid splashes. Some experiments have been made with a ladder-tipe distributors containing 4 parallel tubes each, for a pilot column of 400 mm in diameter. The literature shows disagreement regarding the characteristics of the project and the efficiency of the distributors. The number of holes has varied (n) 95, 127 and 159 holes/m2; 12, 16 and 20 holes for distributor, the diameter of the holes (d) 2, 3 and 4 mm and the flow of entrance in the distributors (q) of 1,2; 1,4 and 1,6 m3/h. The best efficiency of splashing of the lowest deviation pattern (0,302) was achieved with n of 159 holes/m2, d of 2 mm and q of 1,4 m3/h showing the limitation of characteristics of the project literature. The pressure (p), for this condition in the distributor entrance, was only 0,51 kgf/cm2. The measuring relation between the area of the section of the feeding pipe and the addition of the area of the roles was 5,81, the total volume of the out flow for unit of the area of the column section for this better condition was 11,32 m3/(h m2) and the average speed (v), in each hole was 6,31 m/s. Finally, the indicated method permits the comparison and quantification of the efficiency of the distributors, besides showing that some of the project concepts are not valid and the literature does not recommend them.
45

A comparative study of power relationships of large State-Owned Enterprises (SOEs) and Private-Owned Enterprises (POEs) over small distributors considered from the distributors' perspective - the case of the iron and steel industry in China

Liu, Wei January 2016 (has links)
This thesis investigates manufacturer-distributor power relationship in the Chinese Iron and Steel Industry. The main objectives of this study are to identify, describe and investigate the power relationships in Chinese Iron and Steel Industry; to understand the concept of power from the perspective of distributors and their relationship with State-Owned Enterprises and Private-Owned Enterprises in this industry; and to explore the possibility of developing an extended research power-relationship framework by investigating the power construct and potentially related and relevant factors in the Chinese market that may impact predicted outcomes such as positive conflict resolution attitude and levels of conflict. Two quantitative pilot studies were conducted, consisting of 14 surveys with semi-structured questions each, which were instrumental in the design of an extended power relationship model by incorporating the factors such as the level of trust, frequency of communication and level of guanxi that drive positive conflict resolution attitude into the traditional power model that had not been combined in a single framework before. Subsequently, the main study was carried out comprising 148 questionnaires completed by distributor firm managers. These represent the views of 74 respondents, who responded for both state-owned enterprises and private-owned enterprises in the Chinese Iron and Steel Industry The sample size is 74 respondents including 14 respondents that were also respondents for the pilot studies. This study generated four main findings. 1) a State-Owned Enterprises tend to use more non-coercive power than Private-Owned Enterprises, and have a stronger negative effect than Private-Owned Enterprises; 2) although Private-Owned Enterprises were rated higher than State-Owned Enterprises in the level of trust, and have a stronger positive effect when explaining the observed relationship between the level of trust and positive conflict resolution attitude, the difference is really minimal; 3) Private-Owned Enterprises were rated higher than State-Owned Enterprises in the frequency of communication, and have a stronger positive effect than State-Owned Enterprises in the explanation of the relationship between frequency of communication and positive conflict resolution attitude. 4) Private-Owned Enterprises were rated higher than State-Owned Enterprises in the level of guanxi, and have stronger positive effect than State-Owned Enterprises in the explanation of the relationship between level of guanxi and positive conflict resolution attitude. These findings contribute to fill gaps in the literature with regard to power relationships in distribution channels. This thesis extends the current boundary of knowledge through the formulation of an extended framework that integrates conflict resolution constructs into a typical/traditional power model. This extended framework comprises new constructs such as level of trust, frequency of communication and level of guanxi and hypothesises their impact on conflict resolution attitude and level of conflict in the Chinese distribution channel. New knowledge is created by investigating differences regarding the use of power by SOEs and POEs considered from the distributor perspective in the Chinese context. Theoretical and managerial implications are discussed in detail.
46

A study and implementation of an electronic commerce website using active server pages

Boutkhil, Soumaya 01 January 2001 (has links)
The purpose of this project is to design an electronic commerce site for MarocMart company. MarocMart.com is an one-stop shopping company for a number of high quality products: carpets, jewelry, pottery, wood, leather, metals, and fashion items, etc... Each article is unique, hand-made by Moroccan craftsmen.
47

Java/XML-based Trading Information Processing System for produce wholesale market

Yang, Ching-Ling 01 January 2004 (has links)
The purpose of this project is to investigate the use of the emerging XML technologies to improve online Business to Business (B2B) supply chain processes.
48

[en] RESIDENTIAL PHOTOVOLTAIC SYSTEMS IN BRAZIL: A TECHNICAL-ECONOMIC ANALYSIS FROM THE PERSPECTIVE OF PROSUMERS AND UTILITIES / [pt] SISTEMAS FOTOVOLTAICOS RESIDENCIAIS NO BRASIL: UMA ANÁLISE TÉCNICO-ECONÔMICA SOB A PERSPECTIVA DE PROSUMIDORES E DISTRIBUIDORAS

30 December 2021 (has links)
[pt] As mudanças recentes nas matrizes elétricas mundiais são geralmente motivadas pela busca de fontes de energia mais limpas e pela dificuldade na construção de novas gerações centralizadas. Como resultado, este estímulo altera não apenas a tecnologia da fonte de energia, mas também a sua localização, que agora passa a ser mais próximas aos centros consumidores ou até mesmo conectadas à rede de distribuição, como a Geração Distribuída (GD). No Brasil, a GD possui um arcabouço regulatório que permite aos seus adeptos, chamados de prosumidores, terem um papel ativo na rede de distribuição, injetando e consumindo eletricidade consoante o seu balanço elétrico. Esse comportamento traz novos desafios para as companhias de distribuição, e, embora alguns benefícios da GD possam ser obtidos para essas companhias, a perda de mercado e diminuição de suas receitas fixas podem acarretar em transferência de custos estruturais, dos prosumidores para os consumidores sem este tipo de instalação. Nesse contexto, o presente trabalho realiza uma análise técnico-econômico, para novos empreendimentos residenciais de GD fotovoltaica, parcela mais significativa de GD no Brasil. Essa análise considera todas as opções propostas de revisão da regulação de GD pelo órgão regulador e aborda tanto o impacto no retorno do investimento pelos prosumidores, quanto o impacto nas receitas em todas as distribuidoras do país. Para isto, no âmbito do investidor, serão avaliados três diferentes fatores econômicos: LCOE, payback descontado e benefício-custo; já no âmbito da distribuidora, será avaliado o impacto do aumento das GD na receita da empresa e na tarifa de energia elétrica imposta pela mesma, para tanto será realizado uma previsão de mercado para os próximos dez anos, considerando o modelo baseado em Bass. Os estudos realizados apontaram que qualquer uma das opções propostas pelo órgão regulador causará uma redução do mercado aderente a instalação da GD, o que consequentemente levará a uma redução dos prejuízos das distribuidoras e cenários menos favoráveis ao investimento pelo lado do prosumidor. / [en] Recent changes in the world s electrical mix are generally motivated by the search for cleaner energy sources and by the difficulty in building new centralized power plants. As a result, this stimulus changes not only the energy source technology, but also its location, which is now closer to consumer centers or even connected to the distribution network, such as Distributed Generation (DG). In Brazil, DG has a regulatory framework that allows its supporters, called prosumers, to play an active role in the distribution network, injecting and consuming electricity according to their own electrical balance. This behavior brings new challenges for distribution companies, and although some benefits of DG can be obtained for these companies, the loss of market and reduction of their fixed revenues can result in the transfer of structural costs, from prosumers to consumers without this type of installation. In this context, this work performs a technical-economic analysis for new residential projects of photovoltaic DG, the most significant portion of DG in Brazil. This analysis considers all proposed options for reviewing DG regulation by the regulatory body and addresses both the impact on return on investment by prosumers and the impact on revenues in all distribution companies in the country. For this, within the investor, three different economic factors are evaluated: LCOE, discounted payback and benefit-cost; within the scope of the distribution companies, the impact of the increase in DG on the company s revenue and on their electricity tariff are also evaluated, for which a market forecast will be made for the next ten years, considering the model based on Bass. The obtained results indicate that any of the options proposed by the regulatory agency will cause a reduction in the market adherent to the installation of the DG, which will consequently lead to a reduction in the revenue losses for distribution companies and less favorable scenarios for investment on the prosumer side.
49

Маркетинговое управление процессом бережливого распределения в крупных компаниях дистрибьютерах : магистерская диссертация / Marketing management of the lean distribution process in large distribution companies

Лашку, К. Ф., Lashku, K. F. January 2022 (has links)
В выпускной квалификационной работе рассматриваются особенности маркетинговой деятельности дистрибьютерских компаний, их специфика управления процессами распределения и создание ценности услуг, а также концепция «lean» при управлении процессами распределения. Проведена оценка маркетинговой и конкурентной среды дистрибьютерской компании «ЭТМ». В рамках исследования предлагается проект по совершенствованию процесса распределения товаров и услуг в компании и обосновывается целесообразность внедрения концепции бережливого распределения. / The final qualification work examines the features of the marketing activities of distribution companies, their specifics of managing distribution processes and creating the value of services, as well as the concept of "lean" in managing distribution processes. An assessment of the marketing and competitive environment of the distribution company "ETM" was carried out. The study proposes a project to improve the process of distribution of goods and services in the company and substantiates the feasibility of introducing the concept of lean distribution.
50

併購成長策略個案分析-以大聯大控股公司為例 / A Case Study on the M&A Strategy of the WPG Holding

吳永昌, Wu, Yung Chang Unknown Date (has links)
有鑒於全球半導體產業已趨成熟,全球半導體通路商之間的競爭也越來越白熱化,越來越多家半導體通路商藉由企業併購,進行所代理產品線的互補、技術整合與併購後的企業資源整合,進而產生併購綜效(Synergy),以達半導體通路商的經濟規模,才足以持續保有競爭力。 本研究藉由大聯大控股公司的併購策略,持續保持競爭力,以及併購後所產生綜效作為研究對象,針對未來半導體通路商產業的全球佈局之策略參考,在面對全球景氣循環不佳環境下,半導體通路商毛利率越來越低情況下,如何思考通路商的營運策略、通路商的價值與市場定位,尋求全球戰略佈局,發揮企業的核心價值與核心競爭力。在其併購前之充分準備、規劃與決定併購方式,併購後如何持續做好經營管理,組織設計與調整組織..等做完整分析,從中找出『半導體通路商之核心能力、併購戰略與整合佈局』等交互關係。 研究說明併購前應有的考慮事項如:環境評估、競爭策略方向、白地策略、價值鏈加值、併購後之系統整合、資源整合、組織的設計創新、經營管理制度創新..等因素,供相關企業於併購前後可採取之策略參考,圓滿達成併購績效目標,並達到預期併購綜效,符合股東期望。 本案例研究結果歸納出下列重點: 1.併購前首重交易前之準備階段(即評估併購目標公司和制定整併計畫)。 2.挑選併購對象時,相關併購所創造的價值比無相關併購要來得高。 3.周詳的整合計畫與管理機制,是實現併購綜效的主要關鍵。 4.留住關鍵人才是確保企業併購成功的重要基石。 5.併購後,如何消彌兩家企業間文化差異,是合併後經營成敗的關鍵因素。 6.併購後保留雙方的優良企業文化,再循序漸進轉化成新的企業願景、文化。 7.藉由不斷的溝通協調,建立共識,設定目標,資源整合等,才可以提升綜效。 8.設計新組織架構、新的營運與管理模式,讓併購綜效延續,持續保有競爭力。 9.階段性組織調整與經營策略調整,並配合上游供應商策略,是半導體通路商重要成功關鍵因素。 10.依併購對象規模條件決定,小公司由子集團併購,大公司由控股公司併購。 / In view of the mature global semiconductor industry, more and more intense competition between the global semiconductor distributor, a growing number of semiconductor distributors through mergers and acquisitions, product line agent complementary, technology integration, mergers and acquisitions, enterprise resource integration, and thus produce a net synergistic effect (synergy), to achieve the economies of scale of the semiconductor distributor, enough to sustain their competitiveness. By WPG Holdings company's acquisition strategy, the study continued to remain competitive and generate synergies after the acquisition as an object of study for future semiconductor distributors industry's and global distribution strategy reference, the poor in the face of the global business cycle environment, getting lower and lower gross profit margin in the semiconductor distributors, how to think about the operating strategy of the distributor, distributor’s value and market positioning, seeking global strategic layout, play to the company's core values and core competitiveness. Fully prepared in the pre-merger planning and decision mergers and acquisitions, post-merger continued good business management, organizational design and adjust the organization. Do a complete analysis, to find out the core competencies of the semiconductor distributors, M & A strategy and integration layout and other interactive relationship. Study shows that pre-merger due considerations such as: environmental assessment, direction of competitive strategy, Seizing the white space strategy, value chain, value-added, M & A system integration, integration of resources, organization design innovation, management system innovation. And other factors, for related enterprises can be taken before and after the M & A strategy reference, the successful completion of the merger and acquisition performance objectives, and achieve the expected synergistic gains, in line with the expectations of shareholders. This case study results are summarized to the following priorities: 1. Preparation phase before the first heavy trading in the pre-merger (ie, assessment of the M & A target company and the development of the whole and plans). 2. Selection of acquisition targets, the value of mergers and acquisitions are creating related to mergers and acquisitions to come. 3. Comprehensive integration planning and management mechanism, which is the key to achieve synergistic gains. 4. Retain key personnel to ensure that the cornerstone of success of mergers and acquisitions. 5. After the merger, and how to eliminate a key factor in business success of the cultural differences between the two companies merged. 6. After the merger, to retain both excellent corporate culture, and then step-by-step into the new corporate vision, culture. 7. By continuous communication and coordination, consensus-building, goal setting, resource integration, can enhance the synergy. 8. The design of the new organizational structure, the new operation and management mode, make a merger synergy continuation, continued to stay competitive. 9. Phased organizational restructuring and business strategy adjustment, and in line with the strategy of vendor suppliers are the semiconductor distributor important critical success factors. 10. Conditions in accordance with the scale of acquisition targets decided, a small company by the sub-group mergers and acquisitions, and large companies by the holding company mergers and acquisitions.

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