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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

Ostracode and foraminiferal taxonomy and palaeoecology of the Fossil Cliff Member of the Holmwood Shale, northern Perth Basin, Western Australia /

Ferdinando, Darren. January 2001 (has links)
Thesis (Ph.D.)--University of Western Australia, 2003.
2

Beitrag zur kenntnis der Gastropoden der mitteldeutschen Trias ...

Picard, Wilhelm Edmund Adolf, January 1902 (has links)
Inaug.-diss.--Halle-Wittenberg.
3

Young tertiary and quaternary Gastropoda from the island of Nias (Malay archipelago)

Wissema, Gustaaf Gerard. January 1900 (has links)
Proefschrift - Rijksuniversiteit te Leiden. / Includes bibliographical references (p. 205-212).
4

Capitosaurid amphibians from the upper Luangwa Valley, Zambia

Chernin, Sharon 13 January 2015 (has links)
No description available.
5

Operation optimisation towards generation efficiency improvement in Saudi Arabia using LSS, simulation and mathematical programming

Althaqafi, Mohammad January 2017 (has links)
The efficiency of fossil power generation has improved in recent decades with the different types of fuel and advancing technologies playing a crucial role in this trend. The Kingdom of Saudi Arabia (KSA) is considered among the lowest countries in the world in terms of generation efficiency. As a consequence, recent studies have proposed upgrading the generation stock with highly efficient units, and increasing the share of natural gas over oil to improve the average efficiency. However, despite efforts being made in that direction in the past few years, they have not had a significant impact and there have been few studies in the literature aimed at tackling what the real issues are in the kingdom. This research explores the causes leading to the current level of energy efficiency in KSA using Lean Six Sigma (LSS) and a simulation model, subsequent to which a new framework is developed aimed at delivering sustained continuous improvement. Firstly, LSS is applied to identify the primary area of waste and secondly, the actual efficiency is measured using real data collected from KSA. Subsequently, the outcomes are analysed through utilising a simulation model that has been designed and tested to ensure accurate results are obtained. Following this, an improvement plan is proposed using mathematical models and mathematical programming, which was implemented using a simulation model. Finally, controlling the obtained improvement is included for sustaining its continuity. The main contribution of this thesis lies in the integration of LSS and a simulation model to identify the most influential factors in relation to the generation efficiency level in KSA in terms of their impact on fuel and emissions. Moreover, this research involves developing a new merit order using a mathematical model and mathematical programming for optimisation. The novelty can be seen in combining the quality and quantity of production to generate a single operation measure. The results show that the power plants' operation is a primary cause of the current level of efficiency, while the generation stock has the potential to deliver higher efficiency levels. Around 3.5 and 6% improvement in efficiency have been achieved over the two research stages. This figure has resulted in a fuel saving worth $1.8 billion, significant reduction in subsidies and 8.5 Mtonnes reduction in the total CO2 produced. Finally, this thesis provides a framework based on incentives for power providers that can ensure continuous improvement.
6

Brachiopod paleoecology, paleobiogeography, and biostratigraphy in the upper Middle Devonian of Eastern North America : an ecofacies model for the Appalachian, Michigan, and Illinois Basins /

Koch, William Frederick. January 1978 (has links)
Thesis (Ph. D.)--Oregon State University, 1979. / Typescript (photocopy). Appendix 2 Tables 1/13, issued in separate roll. Includes bibliographical references (leaves 170-181). Also available on the World Wide Web.
7

Die organisation und systematische stellung der sphaeriten ...

Schöndorf, Friedrich. January 1900 (has links)
Inaug.-diss.-Berlin. / Lebenslauf. "Literatur-verzeichnis": p. [270]-271.
8

Characters useful in determining the position of individual teeth in the permanent check-tooth series of Merychippine horses

Bode, Francis D. January 1931 (has links)
Thesis (Masters)--California Institute of Technology, 1931. / Title from home page (viewed 03/08/2010). Includes bibliographical references.
9

Shell characteristics of the family pectinidae as environmental indicators

Clark, George Richmond. Lowenstam, Heinz A. January 1900 (has links)
Thesis (Ph. D.)--California Institute of Technology, 1969. UMI #69-19,586. / Advisor names found in the Acknowledgments pages of the thesis. Title from home page. Viewed 02/17/2010. Includes bibliographical references.
10

Comanchean and Cretaceous Pectinidae of Texas

Kniker, Hedwig Thusnelda 09 June 2009 (has links)
Not Available / text / text

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