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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.

Evaluation of non-intrusive load monitoring for shipboard cycling system diagnostics

Mosman, James P. 06 1900 (has links)
CIVINS / The Non-Intrusive Load Monitor (NILM) is a device that utilizes voltage and current measurements to determine the operating schedule of all of the major loads on an electrical service. Additionally, the NILM can use its electrical measurements to diagnose impending failures in the mechanical systems that are actuated by the electric loads. Ongoing NILM research conducted at Massachusetts Institute of Technology's Laboratory for Electromagnetic and Electronic Systems (LEES) is exploring the application of NILM technology in shipboard environments. For the current shipboard applications, diagnostic software development is in progress. To aid in that process, research was done to understand the dynamics of a shipboard cycling system. This thesis presents an in-depth examination of the development of diagnostic indicators for a shipboard vacuum assisted waste disposal system. Measurements and experimentation were conducted onboard USCGC SENECA (WMEC-906), a 270-foot Coast Guard Cutter. In order to better understand the system dynamics, a computer based model was developed to simulate the system. The intent of creating an in-depth model was to develop diagnostic methods that are applicable to any shipboard cycling systems. First, a base model is designed followed by the exploration of a realistic model that includes variation commonly found in the system. Thirdly, a diagnostics section explores methods to detect increased pump operation and distinguish between high system usage and the presence of a leak. Lastly, a basic cost analysis is done on the sewage system to show the benefits of installing a NILM. / CIVINS / US Navy (USN) author.

A cost-effectiveness analysis of tactical satellites, high-altitude long-endurance airships, and high and medium altitude unmanned aerial systems for ISR and communication missions

Collier, Corey M. Kacala, Jeffrey C. January 2008 (has links) (PDF)
Thesis (M.S. in Space Systems Operations)--Naval Postgraduate School, September 2008. / Thesis Advisor(s): Welch, William J. "September 2008." Description based on title screen as viewed on November 5, 2008. Includes bibliographical references (p. ). Also available in print.


Seider, Daniel. January 1984 (has links)
No description available.

Cost benefit analysis of outsourcing initiatives/strategy at water utilities corporation (Botswana) / G Mogomotsi

Mogomotsi, G 11 January 2016 (has links)
After the Water Utilities Corporation adopted outsourcing as a policy initiative and operational directive various non-core functions were outsourced. This raises obvious questions as to why the Corporation suddenly decided to do this. Does the Corporation indeed benefit in terms of value addition from outsourced functions? Some of the pertinent questions include: To what extent did policy guidelines and operational measures govern the said outsourcing initiatives? What are the costs and benefits of the following: fleet management, IT/functional/Technical/and Infrastructure support? This paper argues that Public Utility Companies such as the WUC are not implementing outsourcing initiatives the right way. As a result, outsourcing at WUC is ridden with more costs than benefits. Using multiple data collection methods thirty respondents, employed at various WUC work stations completed the questionnaires. The results from the questionnaire suggest that outsourcing is the right business decision to be made, but cost benefit assessment must be undertaken in order to derive more benefits from outsourcing initiatives. In tackling the problems of the predominance of costs versus benefits an overhaul of the policy and implementation framework needs to be done. In carrying out a cost benefit analysis of outsourcing initiatives at Water Utilities Corporation, a three-tier dimensional model in which quantitative data, qualitative data and cross quantity-quality data was analysed and tabulated. According to the cost benefit analysis variant model, a negatively discounted cost benefit ratio indicates more costs over benefits for any particular analysis of data. While measures of non-monetary outsourcing costs are improving, at least four other key areas warrant more attention: First, routine savings derive from routine precautions to determine an efficient working model of outsourcing. Second, models of vendor (provider) and the Corporation (service provider) and the Corporations' clients (consumer) are underdeveloped in this field . Third, outsourcing externalities occur when entities (such as the Corporation, Premises Managers, some persons and environments) produce targets and situations that provide outsourcing opportunities. These entities externalise or do not bear the outsourcing costs to the corporation and society that they produce. This can be explained by the convergence of qualitative responses from respondents, the efficiency and effectiveness of the vendors and the overall saisfaction of the Coporation of the services provided by the vendors. This report has been conducted on Water Utilities Corporation ,Botswana. Data has been collected by observing total outsourcing process, taking personal interviews, analysis cost and revenue data and searching through data archives. / Thesis (MBA) North-West University, Mafikeng Campus, 2011

Cost-benefits analysis of certified environmental management systems

麥永靑, Mak, Wing-ching, Sarah. January 1998 (has links)
published_or_final_version / Environmental Management / Master / Master of Science in Environmental Management

The contingent valuation method in valuing public goods: its uses and problems

陳劍雄, Chan, Kim-hung. January 1991 (has links)
published_or_final_version / Economics / Master / Master of Social Sciences

The flexible generation of management information from automated batch manufacturing facilities

Chandler, J. R. January 1987 (has links)
No description available.

Health micro-financing and health cost management in a large organisation : a corporate case study of Eskom South Africa

17 August 2015 (has links)
M.B.A. / Please refer to full text to view abstract

Enhancement of the acquisition process for a combat system a case study to model the workflow processes for an Air Defense System Acquisition /

Chia, Wee Lee. January 2009 (has links) (PDF)
Thesis (M.S. in Computer Science)--Naval Postgraduate School, December 2009. / Thesis Advisor(s): Michael, James Bret ; Shing, Man-Tak. "December 2009." Description based on title screen as viewed on February 01, 2010. Author(s) subject terms: Acquisition process, concept-refinement phase, GQM Method, use case analysis, activity diagram, workflow process, StateChart Assertions, runtime execution monitoring. Includes bibliographical references (p. 45-47). Also available in print.

Analysis of elements of the Continuous Monitoring Program

Bolls, Matthew L. January 2009 (has links) (PDF)
Thesis (M.B.A.)--Naval Postgraduate School, December 2009. / Thesis Advisor(s): Euske, Kenneth J. ; Mutty, John E. "December 2009." Description based on title screen as viewed on January 28, 2010. Author(s) subject terms: Ticonderoga Class Cruiser, Oliver Hazard Perry Frigate, Continuous Monitoring Program (CMP), operating target (OPTAR), other consumable (SO), repair parts (SR), and administrative (SX), sub-account. Includes bibliographical references (p. 81-82). Also available in print.

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