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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.

A prevention of significant deterioration case study /

Astruc, Salud, January 1993 (has links)
Thesis (M.S.)--Virginia Polytechnic Institute and State University, 1993. / Vita. Abstract. Bibliography references included. Also available via the Internet.

Visual simulation of Brisbane River-Moreton Bay System in a decision framework environment /

Utami, Dian Wahyu. January 2002 (has links) (PDF)
Thesis (M.Sc) - University of Queensland, 2002. / Includes bibliography.

A study of the system of the Annual Assessment of Urban Environmental Quality in China

Leung, Kai-fai, Edward. January 2005 (has links)
published_or_final_version / abstract / China Development Studies / Master / Master of Arts

An adaptive data compression system for environmental telemetry applications

Khalil, Atheer H. January 1994 (has links)
No description available.

Tools for environmental statistics : creative visualization and estimating variance from complex surveys

Courbois, Jean-Yves Pip 07 January 2000 (has links)
Environmental monitoring poses two challenges to statistical analysis: complex data and complex survey designs. Monitoring for system health involves measuring physical, chemical, and biological properties that have complex relations. Exploring these relations is an integral part of understanding how systems are changing under stress. How does one explore high dimensional data? Many of our current methods rely on "black-box" mathematical methods. Visualization techniques on the other hand are either restricted to low dimensions or hopelessly out of context. The first topic explored in this dissertation suggests a direct search method for use in projection pursuit guided tours. In Chapter 2 a direct search method for index optimization, the multidirectional pattern search, was explored for use in projection pursuit guided tours. The benefit of this method is that it does not require the projection pursuit index to be continuously differentiable; in contrast to existing methods that require differentiability. Computational comparisons with test data revealed the feasibility and promise of the method. It successfully found hidden structure in 4 of 6 test data sets. The study demonstrates that the direct search method lends itself well to use in guided tours and allows for non-differentiable indices. Evaluating estimators of the population variance is covered in Chapter 3. Good estimates of the population variance are useful when designing a survey. These estimates may come from a pilot project or survey. Often in environmental sampling simple random sampling is not possible;�� instead complex designs are used. In this case there is no clear estimator for the population variance. We propose an estimator that is (1) based on a methods of moments approach and (2) extendible to more complex variance component models. Several other estimators have been proposed in the literature. This study compared our method of moment estimator to other variance estimators. Unfortunately our estimator did not do as well as some of the other estimators that have been suggested implying that these estimators do not perform similarly as the literature suggests they do. Two estimators, the sample variance and a ratio estimator based on the Horvitz-Thompson Theorem and a consistency argument, proved to be favorable. / Graduation date: 2000

Investigations on the use of fucus germlings in the study of estuarine and coastal pollution

Grundy, Sarah R. January 1996 (has links)
No description available.

An intelligent microcontroller-based sensor system for environmental monitoring /

Rezeki, Salam Maria Srie Unknown Date (has links)
Thesis (PhD)--University of South Australia, 1999

Design and application of a multichannel laser-induced fluorescence system for environmental monitoring /

Pepper, Jane Runyue Wu. January 1999 (has links)
Thesis (Ph.D.)--Tufts University, 1999. / Adviser: Jonathan E. Kenny. Submitted to the Dept. of Chemistry. Includes bibliographical references. Access restricted to members of the Tufts University community. Also available via the World Wide Web;

Development of a source-meteorology-receptor (SMR) approach using fine particulate intermittent monitored concentration data for urban areas in Ohio /

Varadarajan, Charanya. January 2007 (has links)
Dissertation (Ph.D.)--University of Toledo, 2007. / "Submitted as partial fulfillment of the requirements for the Doctor of Philosophy in Engineering." Bibliography: leaves 92-102.

Change detection in remote sensing using supervised fuzzy classification /

Deer, Peter January 1999 (has links) (PDF)
Thesis (Ph. D.)--University of Adelaide, Depts of Georgraphy and Computing Science, 1999. / Includes bibliographical references (leaves 245-267).

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