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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.
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Showing 21 to 25 of 25 (0.094 seconds)| 21 |
Verfahren zur Ermittlung des Einflusses von infrastrukturellen und betrieblichen Faktoren auf die spezifischen Kosten der EisenbahninfrastrukturAlsalamat, Hassan 25 June 2012 (has links)
Die Arbeit ist ein Beitrag zur betrieblich-ökonomischen Optimierung der Eisenbahninfrastruktur auf der Grundlage ihres Kosten-Nutzen-Verhältnisses. Der wesentliche Inhalt der Arbeit ist die Erarbeitung einer Methodik, mit deren Hilfe die Kosten einer Eisenbahnstrecke je fahrbarer Zugtrasse, basierend auf Streckenstandards, der Deutsche Bahn AG, berechnet werden können.
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The effect brought about by the implementation of a compulsory competitive tendering policy on the administration of parks and recreation maintenance in Britain: 1988-1994Haycock, Eric 01 1900 (has links)
The aim of the study was to analyze the effect brought about by the
promulgation of the British Local Government Act of 1988 on the maintenance
of parks and recreational services. The Act made it compulsory to local
authorities to expose the maintenance of parks and recreational services to a
tendering process, commonly known as compulsory competitive tendering.
The implementation of compulsory competitive tendering had to be done
between the promulgation of the Act in 1988, and 1994. With regard to this
period, a perception existed that the standard of the administration of the
maintenance of parks and recreational services declined.
The research was done to determine if the implementation of compulsory
competitive tendering on the maintenance of parks and recreational services
could have resulted in a decline in the standard of the administration of the
services, and how it could have happened. It was determined that the motive
of the British Government at the time of implementation of the compulsory
competitive tendering was primarily to save money. The result of the
implementation of compulsory competitive legislation on the maintenance of
parks and recreational services were amongst other things:
- low morale of staff who were pressured to change
- culture changes necessary to comply to compulsory competitive
organisational structures
- legislation that influenced the lives of traditional local authority employees
drastically, and
- the development of a new approach to financial management to comply to
the government's expectations of saving money. / Public Administration / M. A. (Public Administration)
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Funkční díly v ocenění stavebního objektu / Functional parts valuation of the buildingŠevčík, Jaroslav January 2016 (has links)
Diploma thesis deals with comparing of current awards by Classification of building structures and works and awards by Functional parts. It is possible to calculate Building life cycle costs by Functional parts. This is definately the advantage of the system because the calculation cannot be done by Classification of building structures and works. A new law on public procurement deals with Building life cycle costs as an evaluation criterion. So it is recommended to use Functional parts awards. The other goal of the thesis is to find bridges between Functional parts and the issue of BIM. BIM is a trend of global construction industry.
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The effect brought about by the implementation of a compulsory competitive tendering policy on the administration of parks and recreation maintenance in Britain: 1988-1994Haycock, Eric 01 1900 (has links)
The aim of the study was to analyze the effect brought about by the
promulgation of the British Local Government Act of 1988 on the maintenance
of parks and recreational services. The Act made it compulsory to local
authorities to expose the maintenance of parks and recreational services to a
tendering process, commonly known as compulsory competitive tendering.
The implementation of compulsory competitive tendering had to be done
between the promulgation of the Act in 1988, and 1994. With regard to this
period, a perception existed that the standard of the administration of the
maintenance of parks and recreational services declined.
The research was done to determine if the implementation of compulsory
competitive tendering on the maintenance of parks and recreational services
could have resulted in a decline in the standard of the administration of the
services, and how it could have happened. It was determined that the motive
of the British Government at the time of implementation of the compulsory
competitive tendering was primarily to save money. The result of the
implementation of compulsory competitive legislation on the maintenance of
parks and recreational services were amongst other things:
- low morale of staff who were pressured to change
- culture changes necessary to comply to compulsory competitive
organisational structures
- legislation that influenced the lives of traditional local authority employees
drastically, and
- the development of a new approach to financial management to comply to
the government's expectations of saving money. / Public Administration and Management / M. A. (Public Administration)
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Analysis of a novel thermoelectric generator in the built environmentLozano, Adolfo 05 October 2011 (has links)
This study centered on a novel thermoelectric generator (TEG) integrated into the built environment. Designed by Watts Thermoelectric LLC, the TEG is essentially a novel assembly of thermoelectric modules whose required temperature differential is supplied by hot and cold streams of water flowing through the TEG. Per its recommended operating conditions, the TEG nominally generates 83 Watts of electrical power. In its default configuration in the built environment, solar-thermal energy serves as the TEG’s hot stream source and geothermal energy serves as its cold stream source. Two systems-level, thermodynamic analyses were performed, which were based on the TEG’s upcoming characterization testing, scheduled to occur later in 2011 in Detroit, Michigan.
The first analysis considered the TEG coupled with a solar collector system. A numerical model of the coupled system was constructed in order to estimate the system’s annual energetic performance. It was determined numerically that over the course of a sample year, the solar collector system could deliver 39.73 megawatt-hours (MWh) of thermal energy to the TEG. The TEG converted that thermal energy into a net of 266.5 kilowatt-hours of electricity in that year. The second analysis focused on the TEG itself during operation with the purpose of providing a preliminary thermodynamic characterization of the TEG. Using experimental data, this analysis found the TEG’s operating efficiency to be 1.72%.
Next, the annual emissions that would be avoided by implementing the zero-emission TEG were considered. The emission factor of Michigan’s electric grid, RFCM, was calculated to be 0.830 tons of carbon dioxide-equivalent (CO2e) per MWh, and with the TEG’s annual energy output, it was concluded that 0.221 tons CO2e would be avoided each year with the TEG. It is important to note that the TEG can be linearly scaled up by including additional modules. Thus, these benefits can be multiplied through the incorporation of more TEG units.
Finally, the levelized cost of electricity (LCOE) of the TEG integrated into the built environment with the solar-thermal hot source and passive ground-based cold source was considered. The LCOE of the system was estimated to be approximately $8,404/MWh, which is substantially greater than current generation technologies. Note that this calculation was based on one particular configuration with a particular and narrow set of assumptions, and is not intended to be a general conclusion about TEG systems overall. It was concluded that while solar-thermal energy systems can sustain the TEG, they are capital-intensive and therefore not economically suitable for the TEG given the assumptions of this analysis. In the end, because of the large costs associated with the solar-thermal system, waste heat recovery is proposed as a potentially more cost-effective provider of the TEG’s hot stream source. / text
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