Global ETD Search

211	Optimisation of BMW Group Standardised Load Units via the Pallet Loading Problem Heinze, Anja January 2006 (has links) The BMW Group uses load units for the transportation of assembly parts from the suppliers to the plants and for the internal material flow. This thesis analyses the advantageousness of introducing a load unit with a new size. There are three reasons why the current choice of containers is not sufficient. Firstly, there is a certain range of assembly parts that does not fit very well into the existing standard load units. Secondly, the average measurements of the parts have grown in the last years and thirdly, several of the existing containers leave unused space in the transportation vehicles. For this the relevant costs and other, more qualitative aspects like the placing at the assembly line are considered. A container size is identified that offers a significant savings potential. For this potential the handling and transportation costs are identified as the relevant leverages. These costs are found to depend mainly on the utilisation degree of the load units. To calculate the different utilisation degrees, a packing-algorithm in form of a four-block heuristic is applied and its results are extrapolated on the basis of existing BMW packing information. Thus, several assembly parts are identified that fit better into the suggested load unit than in the existing ones. These results are assessed using BMW’s expense ratios for handling and transportation. 80 parts are determined for which the migration to the new size would result in savings of more than 5,000 EUR for each per year in Dingolfing. Together, these parts offer a savings potential of about 0.9 million Euro. Logistics Packing Problem Load Unit Container Material Flow Analysis Cost Analysis Optimization, systems theory Optimeringslära, systemteori
212	Design of a backpack container with cooking and eating tools. Jiménez Sánchez, Carlos, Gallego Sánchez, Irene January 2012 (has links) The aim of this project was to develop a product in cooperation with Primus Company in Stockholm. It consisted of designing a container with the items needed when cooking and eating outdoors, in order to help the users eat and cook in a proper way while practicing activities such as camping or hiking. Considering the specifications posed by Primus, research was done. One of the main issues to start this research was to carry out a market analysis in order to know all the products similar to the one that was going to be developed. Then, an analysis of the company and the main competitors of it was done in order to develop a product with Primus style and to get ideas for the product. In addition, a questionnaire study directed to potential users was carried out. In this way, it was possible to get to know things such as which items people usually carry in their backpack for cooking and eating outdoors and which ones they considered essential. This helped with making a choice of what the product should contain. Once all the information collected from the research and from the study of the specifications was prioritized, the concept development phase started. For reaching an outcome, many aspects such as the items that the container should include, the shape of the container and the best material for the product were discussed. Primus TetraCube is a product that suits all the requirements established at the beginning. In this way, Primus TetraCube is a product that can be carried in an 80 litres backpack and where the user can store all the necessary items for four people who want to eat and cook outdoors. It has also been designed taking into consideration all the details, resulting in a product that follows the aesthetics of Primus with soft shapes and colours such as red, black and grey. Everything combined make Primus TetraCube a comfortable product which helps the user feel at home in terms of convenience and comfort. Primus design product container space-saving backpack outdoors cooking eating camping
213	Influence of planting depth on landscape establishment of container-grown trees Bryan, Donita Lynn 15 May 2009 (has links) Tree transplanting practices influence plant survival, establishment, and subsequent landscape value. The inability to adequately quantify effects of inappropriate tree planting and transplanting practices threatens long-term viability and productivity (sustainability) of trees within terrestrial ecosystems. Tree planting depth, i.e. location of the root collar relative to soil grade, is of particular concern for tree growth, development, and performance in the landscape. A series of model studies was conducted to investigate effects of planting depth, container production methods, and transplanting practices on landscape establishment of container-grown trees. Studies included determining the effect of planting depth and soil amendments on live oak (Quercus virginiana Mill.) and baldcypress (Taxodium distichum (L.) L. Rich.), the effect of planting depth during container production and subsequent landscape establishment of lacebark elm (Ulmus parvifolia Jacq.), the effect of planting depth and irrigation practices on landscape establishment of sycamore (Platanus occidentalis L.), and the effect of planting depth and transplant season on landscape establishment of baldcypress. Optimum planting depth varied among species and was dependent on cultural practices and/or environmental conditions. Overall, live oak and baldcypress growth was better when planted with root collars at grade in sand in raised beds compared to planting below grade in control soils. Lacebark elm growth was greater when planted at grade during the initial container production phase and below grade in the second container production phase. Subsequent landscape establishment was variable, but planting at grade to 5 cm above grade produced greater growth. Sycamore trees planted below grade had increased mortality and decreased growth compared to trees planted at grade or above grade, while irrigation had no effect. Baldcypress planted above grade had reduced growth compared to those planted at or below grade, while transplant season had no effect. Species and cultivars within species may differ markedly in their response to environmental/cultural stresses, including planting depth. Each tree species originating from a specific environment may represent an ecotype adapted to that particular environment. Therefore, tree survival and performance may depend on the difference between the environment from which the tree was grown and the experimental system into which it is introduced. oxygen soil amendment season plant species irrigation landscape performance cultural practices container production
214	A federated simulation approach to modeling port and roadway operations Wall, Thomas Aubrey 08 April 2010 (has links) This research develops a computer simulation method for federating an Arena© port operations model and a VISSIM© roadway network operations model. The development of this method is inspired by the High Level Architecture (HLA) standard for federating simulations, and incorporates several elements of the HLA principles into its design. The federated simulation model is then tested using a time-lag experiment to demonstrate the presence of feedback loops between federated model components wherein changes to input parameters of one model during runtime can be shown to affect the operational performance of the other model. This experiment also demonstrates how several initial transient phase and steady state operating characteristics of the federated system can be determined from the federation output data. The results indicate that the method developed in this study is capable of capturing the dynamic interaction of two models in federated simulation. It is shown that feedback loops can exist between two models in federated simulation. Most notably, the federation output shows that increased traffic volume in the roadway network model influences the accumulation of containers in the port terminal queue of the port model. The federation output also shows that increased container volume leaving the port terminal model affects both port and road truck utilization, as well as the total number of port trucks in the roadway network model. Challenges and future directions for research in federating transportation-related simulations are also presented. Computer simulation Vissim Arena HLA Federated simulation Container terminals Containerization Simulation methods
215	Offshore-Containerterminals als Transshipment-Hub - dargestellt am Beispiel der Deutschen Bucht / Offshore-Containerterminals used as transshipment-hub - shown on the example of the German Bight Reise, Sönke 23 July 2005 (has links) (PDF) Deutlich ansteigende interkontinentale Handelsbeziehungen bilden die wesentliche Grundlage das Wachstum der Containerschifffahrt. Die Schnittstelle der Containerschifffahrt zu den landgebundenen Verkehrsträgern bilden Containerterminals. Deren Entwicklung muss im Zusammenhang mit der Containerschifffahrt gesehen werden. Die Entwicklung des Containerschifffahrtsmarktes wird sich auch in Zukunft weiter dynamisch fortsetzen. Prognosen zur Umschlagsentwicklung sind für die Containerterminals von besonderem Interesse, da die Containerterminals bestrebt sind, genügend Kapazitäten bereitzustellen. Im Umfeld eines Containerterminals sowie in ihnen selbst können diverse Kapazitätsengpässe entstehen. In vielen Fällen ist dringender Handlungsbedarf hinsichtlich der Beseitigung von potenziellen Engpässen gegeben. Eine Option stellt dabei der Neubau von Containerterminals dar. Der Hafenbau wird in dichtbesiedelten Räumen zunehmend schwieriger und teurer. Die aus heutiger Sicht zur Verfügung stehenden Flächen werden langfristig nicht ausreichen, um das Umschlagsaufkommen der Zukunft zu bewältigen. Deswegen kann die Errichtung von herkömmlichen Containerterminals langfristig nicht als ausschließliche Option zur Beseitigung von Umschlagsengpässen angesehen werden. Das Konzept eines Offshore-Containerterminals (OCT) stellt einen alternativen Ansatz dar, der zukünftige Engpässe vermeidet oder ihre Auswirkungen mindert. Ziel des Konzepts ist die Verlagerung von Transshipments von den herkömmlichen Containerterminals auf einen OCT. Dieses Konzept wird auf seine wirtschaftliche Tragfähigkeit untersucht. Letzlich stellt das Konzept des OCTs als Transshipment-Hub eine Möglichkeit dar, die unter heutigen Verhältnissen zwar unrentabel erscheint, unter zukünftigem Expansionsdruck und Kostensteigerungen bei der Erschließung neuer Terminalflächen jedoch als Konzept ökonomisch konkurrenzfähig sein kann und eventuell ohne Alternative ist. Bremerhaven Container Containerterminal Deutsche Bucht Feederverkehr Hafen Hamburg Kapazitätsengpässe Offshore Ostsee Transshipment Umschlagsaufkommensentwicklung Baltic Sea Bremerhaven Container Hamburg capacity bottlenecks containerterminal development of container turnover feederservice german bight offshore port transshipment ddc:330 rvk:QR 832 Bremerhaven / Hafen Container Containerterminal Deutsche Bucht Engpassplanung Hafen Hamburg / Hafen Kapazitätsplanung Offshorebauwerk Umladeproblem Zubringerverkehr
216	Effizient Programmieren mit der C++ Standard Template Library Guenther, Marco 07 May 2003 (has links) - Einführung in die Arbeit mit Templates - Vorstellung der in der STL enthaltenen Templates - Beispiele für deren Nutzung Iteratoren Standard Template Library Templates ddc:004 C++ Container STL Template
217	Quay crane scheduling at container terminals : reducing the maximum tardiness of vessel departures / Wang, Lei. January 2003 (has links) Thesis (M. Phil.)--Hong Kong University of Science and Technology, 2003. / Includes bibliographical references (leaves 40-42). Also available in electronic version. Access restricted to campus users.
218	Landscape on the move : the study of migrant workers & shipping containers in Shenzhen Bai, Jie, 白潔 January 2012 (has links) published_or_final_version / Architecture / Master / Master of Landscape Architecture Migrant labor - China - Shenzhen Shi
219	Scheduling trucks in port container terminals by a genetic algorithm Zhang, Yuxuan, 張宇軒 January 2005 (has links) published_or_final_version / abstract / Industrial and Manufacturing Systems Engineering / Master / Master of Philosophy Trucks - Routes - Mathematical models. Scheduling - Mathematical models. Genetic algorithms.
220	Genetic algorithm for scheduling yard cranes in port container terminals Tsang, Wan-sze., 曾韻詩. January 2003 (has links) published_or_final_version / abstract / toc / Industrial and Manufacturing Systems Engineering / Master / Master of Philosophy Cargo handling - Mathematical models. Cranes, derricks, etc. Production scheduling. Genetic algorithms.

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