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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.
1

Automation And Verification Of Ankara Wind Tunnel

Katirci, Argun 01 September 2003 (has links) (PDF)
All the operational and measurement systems of Ankara Wind Tunnel was modified to operate automatically under the control of a central computer system programmed using the Lab View programming language. A cruciform air-to-air missile with triangular canard control and a trapezoidal wing model was tested by a 35mm diameter internal balance at Mach 0.2 and data was compared with the test data of the same model&rsquo / s test that was performed at NASA Langley Research Center.
2

No Researcher Is an Island : Collaboration in Higher Education Institutions

Ljunggren, Maria January 2013 (has links)
The developing knowledge economy affects organizations within the innovation system where higher education institutions (HEI) are regarded as a significant part. There is a large amount of research that focus on different aspects of collaboration such as the outcome, the process and its infrastructure. To emphasize HEIs role in the national and regional innovation systems concepts such as Mode 2 and Triple helix, and the Knowledge triangle, have developed. These concepts have also heavily influenced Swedish innovation policy.   This thesis is set to analyze collaboration work between Swedish HEIs and the public and private sectors, and to understand how collaboration: i) occurs in practice in research and undergraduate education; ii) is influenced by policy efforts, and; iii) influence HEI’s internal and external social capital building. Firstly, research and teaching links is analyzed to highlight the integration of collaboration, research and education within specific research profiles. This is because previous research has neglected collaboration and its effect on undergraduate education. Secondly, social capital theory is used as a framework for the analysis. Social capital theory is used to obtain a thorough understanding of individual researchers’ attitude to collaboration and participation in collaboration activities.   The results indicate that short term projects had long-term effects since it established new education programs and projects. Collaboration also effects undergraduate education through research profiles with their integration of research and education in groups within as well as outside the HEI. The results also show that social capital building through top steered initiatives is complex. In the HEIs there was no relation between researchers expressing a positive attitude towards different forms of collaboration and a high participation level in collaboration activities. This suggests that building of external social capital within HEIs is not related to the nature of the internal social capital. There was interfaculty differences in both the researchers’ attitude to collaboration activities and participation in collaboration activities. As expected, professors had more opportunities and ability for collaboration. They also indicated a resistance to use a central infrastructure for collaboration to build external social capital. The opposite was demonstrated for professors from the humanities who had little experience of collaboration. They still did not to use the infrastructure to a large extent. Suggestively policy makers should encourage a more efficient external social capital building through earmarked funding for collaboration on a department level rather than on the HEIs’ central level.
3

Towards a comprehensive framework for co-simulation of dynamic models with an emphasis on time stepping

Hoepfer, Matthias 08 July 2011 (has links)
Over the last two decades, computer modeling and simulation have evolved as the tools of choice for the design and engineering of dynamic systems. With increased system complexities, modeling and simulation become essential enablers for the design of new systems. Some of the advantages that modeling and simulation-based system design allows for are the replacement of physical tests to ensure product performance, reliability and quality, the shortening of design cycles due to the reduced need for physical prototyping, the design for mission scenarios, the invoking of currently non-existing technologies, and the reduction of technological and financial risks. Traditionally, dynamic systems are modeled in a monolithic way. Such monolithic models include all the data, relations and equations necessary to represent the underlying system. With increased complexity of these models, the monolithic model approach reaches certain limits regarding for example, model handling and maintenance. Furthermore, while the available computer power has been steadily increasing according to Moore's Law (a doubling in computational power every 10 years), the ever-increasing complexities of new models have negated the increased resources available. Lastly, modern systems and design processes are interdisciplinary, enforcing the necessity to make models more flexible to be able to incorporate different modeling and design approaches. The solution to bypassing the shortcomings of monolithic models is co-simulation. In a very general sense, co-simulation addresses the issue of linking together different dynamic sub-models to a model which represents the overall, integrated dynamic system. It is therefore an important enabler for the design of interdisciplinary, interconnected, highly complex dynamic systems. While a basic co-simulation setup can be very easy, complications can arise when sub-models display behaviors such as algebraic loops, singularities, or constraints. This work frames the co-simulation approach to modeling and simulation. It lays out the general approach to dynamic system co-simulation, and gives a comprehensive overview of what co-simulation is and what it is not. It creates a taxonomy of the requirements and limits of co-simulation, and the issues arising with co-simulating sub-models. Possible solutions towards resolving the stated problems are investigated to a certain depth. A particular focus is given to the issue of time stepping. It will be shown that for dynamic models, the selection of the simulation time step is a crucial issue with respect to computational expense, simulation accuracy, and error control. The reasons for this are discussed in depth, and a time stepping algorithm for co-simulation with unknown dynamic sub-models is proposed. Motivations and suggestions for the further treatment of selected issues are presented.
4

Oběh dokladů a vnitřní kontrolní systém / The workflow of the accounting documents and the system internal control

Polcrová, Lucie January 2009 (has links)
The thesis topic is the accounting workflow of the company Siemens Enteprise Communications, s.r.o. The first, theoretical, part of the thesis focuses on general characteristics of the accounting system including the company rules and the need for such a system. The second part of the thesis deals with the workflow of accounting documents (invoices, credit notes, travel orders and other accounting documents). The thesis closes with a comparison of two workflow systems.
5

Recertifikační audit integrovaného systému řízení / Re-certication Audit of the Integrated Management System

Koláčková, Ivana January 2011 (has links)
My main intention of this thesis is to describe the preparation for the re-certification audit of the integrated management system in the way someone else except for me has a benefit from my experience in this area. I will depict which actions have to be done, what, when and how it has to be checked. In all parts, not just in the project one, I will try to integrate some advices into the text, e.g. how the internal auditors should behave. As this thesis is finished after the end of the audit, I will be able to strike a balance of my proposals according to the results of the audit.
6

Management jakosti a integrovaný systém řízení / Quality Management and Integrated Management System

BŘICHÁČKOVÁ, Lenka January 2011 (has links)
Graduation theses is directed on the Management System and the characteristics of the company and its development since 2003. Theses is introduced on the Integrated Management System, which consists of the Quality Management System, the Environmental Management System and the Occupational Health and Safety Assessment Series. The theses is especially directed on the Occupational Health and Safety Assessment Series. Management System is analyzed and steps are recommended to improve these processes.

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