• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 78
  • 52
  • 29
  • 20
  • 12
  • 7
  • 5
  • 3
  • 2
  • 2
  • 2
  • 2
  • 1
  • 1
  • 1
  • Tagged with
  • 250
  • 65
  • 46
  • 44
  • 29
  • 28
  • 24
  • 24
  • 22
  • 22
  • 21
  • 20
  • 20
  • 19
  • 18
  • 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.
31

Fleet Management Services in GSM-modules

Hellström, Nils January 2007 (has links)
This report studies a low cost hardware platform for Fleet Management Services, FMS. The platform manages vehicle data, positioning and wireless communication. The core of the platform is a new kind of ‘intelligent’ GSM modem, called a GSM module. A GSM module is basically a stripped down mobile phone that allows embedded third party application code and has an IP-stack. The report reviews the modules available on the market today and presents experiences from the implementation of a prototype based on the Aplicom A12 module. The main conclusion is that the concept is feasible though the modules' limited performance must be considered in the design.
32

The Study on the Effects of Carriers Performance Under the Proportion of Owned Containership

Chang, Shin-Hao 17 February 2011 (has links)
Maritime is a very competitive industry in global market. In addition to political, economic and prosperity, container carriers have to confront oil prices and climate. It gets high risk and uncertainty in operation. The threat of oversupply of capacity will affect the operation and development of container carriers. Costs is aggravated on container carriers due to they brought too many new vessels when previous boom but economic declined soon. Fleet deployment is a big issue when making operational strategies and plans. Container carriers have to plan how to purchase and lease vessels. People said that the proportion of owned container vessels of Europe container carriers is lower than Asia container carriers. Europe container carries may not spend too much cost to purchase container vessels so it would be more flexible to lease container vessels and able to deploy container vessels in/out of route and create brand new service more mobility. For this reason, operating performance is better than Asia container carriers. This study is base on secondary data from Alphaliner, Containerisation International and American Shipper database and periodical in 2007 and 2008: net profit, total revenue, the numbers of owned, leased and operated container vessels. The 15 major container carriers are divided into three segments: Asia-Chinese, Asia-Non-Chinese and Non-Asia container carriers. The General Linear Mode is practiced on these to find out if any impact or correlation from the proportion of owned container vessel to performance. The conclusions of this study are as following. 1. It¡¦s no correlation between the proportion of owned container vessels and net profit and total revenue in 2007 and 2008 2. The proportion of owned container vessels can not be fixed at a value 3. The proportion of owned container vessels is dynamic, may not be operated by container carriers.
33

Architecture for a remote diagnosis system used in heavy-duty vehicles

Björkman, Anders January 2008 (has links)
<p>The diagnosis system of a Scania vehicle is an indispensable tool for workshop personnel and engineers in their work. Today Scania has a system for fetching diagnostic information from field test vehicles remotely and store them in a database, so called remote diagnosis. This saves the engineers much time by not having to visit every vehicle. The system uses a Windows based on-board PC in the vehicle called an Interactor. The Interactor has a telematic unit for communication with Scanias Fleet Management System and the CAN-bus in the vehicle. In the next generation of the Interactor, its telematic unit is to be replaced by a Linux based telematic unit called the Communicator 200 (C200). The purpose of this master project is to create a new architecture for a remote diagnosis system that uses the new telematic unit Communicator 200.</p><p><br />The thesis gives an analysis of the current remote diagnosis system used at Scania and proposes an architecture for a new generation remote diagnosis system using the C200. Also a system for demonstrating how to perform remote diagnosis over the C200 has been built. The thesis describes the operation and how the demonstration system was implemented.</p>
34

Emergency Medical Services Performance Under Dynamic Ambulance Redeployment

Alanis, Ramon Unknown Date
No description available.
35

Modelo para o dimensionamento de uma frota de contêineres para uma empresa de navegação. / Containers fleet sizing model for a carrier.

Katia Yaguiu 27 September 2006 (has links)
Para uma empresa de navegação, manter uma frota grande de contêineres próprios poderia gerar custos desnecessários para manutenção dos estoques destes contêineres; contudo, se a frota de contêineres próprios for pequena, poderia resultar em um número grande de contêineres arrendados a curto prazo. Assim, nesta dissertação desenvolve-se um modelo de programação linear capaz de estimar a frota ótima de contêineres próprios e alugados, que envolve a dificuldade da tomada de decisão em um comércio extremamente desequilibrado. A revisão bibliográfica apresenta poucas publicações que tratam do tema proposto. O trabalho desenvolvido por Imai e Rivera (2001) é examinado por ser mais semelhante ao tema proposto para esta dissertação. Por tratarem do dimensionamento de frota de contêineres para dois portos e não admitirem aleatoriedades nos tempos de movimentação terrestre de contêineres outros procedimentos foram examinados. Para tentar solucionar o problema de dimensionamento de frota de contêineres próprios para a empresa de navegação dois métodos são analisados: modelo de simulação probabilística e modelo de programação linear. O modelo de simulação é desenvolvido para um problema pequeno. Conforme a ampliação deste modelo e o aumento do número de variáveis, o modelo de simulação passou a ser difícil de ser controlado, pois a mudança dos valores destas variáveis se tornaria muito difícil. O modelo de programação linear é desenvolvido com base nas características e definições adotadas para o modelo de simulação. Este modelo matemático incorpora as aleatoriedades existentes nos processos terrestres, de acordo com as hipóteses adotadas. Este modelo permite auxiliar o planejador a tomar decisões estratégicas, com relação ao tamanho da frota de contêineres necessários para atender a demanda de transporte ao longo do horizonte de planejamento, e operacionais, por apresentar o fluxo de transporte de contêineres vazios entre portos, bem como a quantidade de contêineres alugados, se necessários, para realizar as operações emergenciais associadas a picos de demanda ao longo do período de planejamento. Para testar a consistência do modelo, cenários hipotéticos foram gerados. Por meio dos resultados obtidos para estes cenários, mostra-se a relação do custo dos contêineres alugados e do custo do transporte de contêineres próprios vazios sobre o tamanho da frota de contêineres próprios. / For a carrier, provide a large fleet of owned containers could generate unnecessary costs for maintenance of their inventories; however, if the fleet of owned containers is small, it might result in a large number of short-term leased containers. Thus, it is developed a linear programming model capable to determine the optimal fleet size of owned and leased containers that involves the difficulty of decision-making in an extremely unbalanced trade. The literature survey presents few publications that deal with the considered subject. The work developed for Imai and Rivera (2001) is examined by being more similar to the subject considered in this project. For dealing with the container fleet sizing for two ports and not admitting stochastic travel times inland of containers other procedures are examined. To solve the problem of own container fleet sizing for the carriers two methods are analyzed: probabilistic simulation model and linear programming model. The simulation model is developed for a small problem. As the growing of this model and the increase of the number of variables, the simulation model becomes difficult to control, because the change of the values of these variables would become very hard. The linear programming model is developed on the basis of the characteristics and definitions adopted for the simulation model. This mathematical model incorporates the existing stochastic inland times, in accordance with the adopted hypotheses. This model allows to assist the planner to make strategical decisions, with regard to the size of the fleet of containers necessary to attempt the demand of transport throughout the planning horizon, and operational, for presenting the flow of empty cont ainers between ports, as well as the amount of leased containers, if necessary, to carry through the special operations associated the peaks of demand throughout the period of planning. To test the consistency of the model, hypothetical scenes had been generated. By the results gotten for these scenes, it is showed the relation of the cost of leases containers and the cost of the transport of empty owned containers above the owned container fleet size.
36

Analýza vozového parku Zdravotnické záchranné služby Jihočeského kraje. / Analyse of fleet of Zdravotnická záchranná služba Jihočeského kraje

Kyselová, Lucie January 2008 (has links)
In my dissertation there are all basic data and abstracts, which involve the questions of fleet of Zdravotnická záchranná služba Jihočeského kraje. Mostly I was concentrated on the structure of fleet as well as costs. Currently I tried to describe the problems of logistics and fleet management. Through the analysis of fleet I solved the questions related to costs and incomes of this company. Further I prepared structural analyse, which concentrates on the number and types of cars, also the satisfaction, which is connected with their using. The detailed analysis enabled me to penetrate and explore the branch of costs and incomes. All data are described with graphs and tables.
37

Zvýšení efektivity vybraného podniku / Improving efficiency of selected company

Bouška, Tomáš January 2013 (has links)
The thesis deals with ways of increasing efficiency in retail with focus on logistics from theoretical as well as practical perspective. Application of the practical part is demonstrated on the example of Dotcom, online store project of Tesco Stores ČR a.s. First aim of the thesis is to identify areas with the biggest potential in increasing efficiency with respect to financial demands of the eventual investment and to propose a potential solution. Second aim is to verify a hypothesis that the delivery of goods to customers is inefficient given that the planning system is not being linked to the tracking system.
38

Komunikační strategie modelové řady Škody Fabia / Communication Strategy of Škoda Fabia Range

Trnka, Eduard January 2015 (has links)
This diploma thesis deals with the issue of marketing communication of Škoda Fabia third-generation cars. It is focused on previously unused, yet a very convincing sales argument, that enables a complex quantification of expenditure related to the car ownership. The tool is known as TCO (Total Cost of Ownership) and it has been mostly used by large corporate fleets so far. One of the aims of the thesis is to analyse competitiveness of the Fabia model from the viewpoint of the TCO indicator. This analysis is implemented by means of a specialized tool CarCostExpert by EurotaxGlass´s. A concept of communication strategy based on TCO will be suggested according to its comparison with competitors and interviewing sales network. An estimation of financial potential of the suggested solution as well as analysis of related threats and opportunities are constituent parts of this concept.
39

Využití elektronických systémů pro řízení provozu strojů

Bazgier, Tomáš January 2018 (has links)
This diploma thesis is about electronic and information systems for machine opera-tion control. The theoretical part describes transport telematics, the main systems of satellite positioning used in transport and the specific application of these systems in selected branches. In the practical part, the evaluation of the telematics application Fleet Management in joint-stock company Lesostavby Frýdek-Místek, which uses this system for the control and management of its own fleet, was carried out. The various tools of the given system and their use were described. According to the system outputs after the measurement, the accuracy of the track length recording when moving vehicles on the road was evaluated.
40

Multi-Class Vocation Identification for Heavy Duty Vehicles

Yadav, Varun 12 1900 (has links)
Indiana University-Purdue University Indianapolis (IUPUI) / Understanding the operating profile of different heavy-duty vehicles is needed by parts manufacturers for improved configuration and better future design of the parts. This study investigates the use of a tournament classification approach for both vocation and fleet identi- fication. The proposed approach is implemented using four different classification techniques, namely, K-Means, Expectation Maximization, Particle Swarm Optimization, and Support Vector Machines. Vocations classifiers are developed and tested for six different vocations ranging from coach buses to rail inspection vehicles. Operational field data are obtained from a number of vehicles for each vocation and aggregated over a pre-set distance that varies according to the data collection rate. In addition, fleet classifiers are implemented for five fleets from the coach bus vocation using a similar approach. The results indicate that both vocation and fleet identification are possible with a high level of accuracy. The macro average precision and recall of the SVM vocation classifier are approximately 85%. This result was achieved despite the fact that each vocation consisted of multiple fleets. The macro average precision and recall of the coach bus fleet classifier are approximately 77% even though some fleets had similar operating profiles. These results suggest that the proposed classifier can help support vocation and fleet identification in practice.

Page generated in 0.0487 seconds