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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

Determination of the service life of concrete sealers on horizontal and vertical bridge members /

Drumm, Rick O., January 1992 (has links)
Thesis (M.S.)--Virginia Polytechnic Institute and State University, 1992. / Vita. Abstract. Includes bibliographical references (leaves 151-153). Also available via the Internet.
2

Risk-sensitive preventive maintenance policies using semivariance

Tirumalasetty, Venkata Manojramam, January 2010 (has links) (PDF)
Thesis (M.S.)--Missouri University of Science and Technology, 2010. / Vita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed June 7, 2010) Includes bibliographical references (p. 44-46).
3

Inspection, durability, and risk assessment of highway culverts

Al Tarawneh, Bashar K. January 2005 (has links)
Thesis (Ph.D.)--Ohio University, June, 2005. / Title from PDF t.p. Includes bibliographical references (leaves 182-185)
4

Inspection, durability, and risk assessment of highway culverts /

Al Tarawneh, Bashar K. January 2005 (has links)
Thesis (Ph.D.)--Ohio University, June, 2005. / Includes bibliographical references (leaves 182-185)
5

An investigation into the effects of hard turning surface integrity on component service life

Smith, Stephen R. 05 1900 (has links)
No description available.
6

Service life determination of concrete bridge decks and bridge deck overlay systems /

Larsen, Erin P., January 1993 (has links)
Thesis (M.S.)--Virginia Polytechnic Institute and State University, 1993. / Vita. Abstract. Includes bibliographical references (leaves 188-194). Also available via the Internet.
7

A systematic approach to design for lifelong aircraft evolution

Lim, Dongwook. January 2009 (has links)
Thesis (M. S.)--Aerospace Engineering, Georgia Institute of Technology, 2009. / Committee Chair: Mavris, Dimitri; Committee Member: Bishop, Carlee; Committee Member: Costello, Mark; Committee Member: Nam, Taewoo; Committee Member: Schrage, Daniel.
8

Effects of duty cycles on diesel engine component life estimation

Jayasinghe, Dave S. January 1900 (has links)
Thesis (M.S.)--West Virginia University, 2006. / Title from document title page. Document formatted into pages; contains xi, 91 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 77-80).
9

Fleet Introduction Project for the United States Navy's Next Generation Bathythermograph Recorder System

Moss, Larry Reynolds 25 April 1997 (has links)
The following report presents the preliminary design and prototype development phase of a technology insertion program implemented by this author to extend the service life and to improve the performance of the United States Navy's Bathythermograph Data Recorder System onboard Submarines (AN/BQH-7) and Surface Ships (AN/BQH-7A). The performance upgrade will increase the Fleet User's ability to measure sonar performance and will provide more accurate salinity measurements used for submarine ballasting and control. This project is unique not necessarily because Commercial-off-the-Shelf (COTS) and Non-Developmental Item (NDI) componentry is being used but because the focus is on developing a systems engineering process model for (1) the implementation of COTS and NDI technologies in an open systems architecture environment, (2) a maintenance, sparing, and life cycle support model for COTS and NDI programs, and (3) a periodic technology insertion plan for keeping pace with COTS and NDI technology advances and configuration changes. It is intended that this report be used in the future as a good example of the successful implementation of Acquisition Reform and DoD 5000.2B initiatives. / Master of Science
10

Impact of Environmental Classification on Steel Girder Bridge Elements Using Bridge Inspection Data

Dadson, Daniel K. 23 May 2001 (has links)
State Departments of Transportation (DOT's) have established Bridge Management Systems (BMS) with procedures to aid in estimating service lives of bridge components and elements. Service life estimates, together with cost information, are used to develop life-cycle costs of bridges. These estimates are necessary to prioritize and optimize bridge improvement programs within budgetary constraints. Several factors, including age, traffic, and environment have been identified in current BMS literature as being directly responsible for the deterioration of bridge components or elements. However, no formal methodology exists to determine the effects of the environment. Estimating bridge elements service lives, without considering the effect of environmental factors, could potentially lead to biased estimates. A methodology is proposed using statistical analysis to determine the effects of environmental regions on service life estimates of steel girder bridge component (concrete deck) and element/protective system (girder paint) using bridge inspection field data collected by bridge inspectors. Further, existing deterioration models are incapable of using the non-numeric element level inspection data, which most state DOT's have been collecting for nearly thirty years per Federal Highway Administration guidelines. The data format used were the numerical condition appraisal scale (9 through 0) for concrete deck component, and the letter condition appraisal (G-F-P-C) for steel girder paint element. The methodology proposed an environmental classification system for use in BMS programs. In addition, least squares mean and corresponding standard errors and also means and corresponding standard deviations of service lives at the component and element/protective system levels were estimated. The steel girder paint estimated service lives can be used in scheduling maintenance, repair and rehabilitation operations, and also in life-cycle costs analysis at the project and network levels. Because of limitations in the concrete deck data sets, the estimated concrete deck service lives are not true estimates of their service lives but do reflect the influence of environmental exposure characteristics on their performance. / Ph. D.

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