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Articles 31 - 35 of 35
Full-Text Articles in Systems Science
Minimizing Post-Production Weight Growth In Tanks Using A Decision Analysis Model, Michael F. Cochrane
Minimizing Post-Production Weight Growth In Tanks Using A Decision Analysis Model, Michael F. Cochrane
Engineering Management & Systems Engineering Theses & Dissertations
Post-production weight growth of tanks is an historic problem for the military. Tanks are difficult to transport because of their weight, and post-production modifications tend to cause this weight to increase over the lifecycle of the tank. In this thesis, a computer model is constructed which uses influence diagrams to model tank weight growth as a probabilistic process. Historical weight data for the MI Abrams tank program is used to derive probabilities for the model. The model is used to predict tank weight growth over both the short and long term with the goal of understanding more about how and …
A Proposed Approach To Iso Compliance And Validation For Metrology Laboratories, J. Lyle Bagley
A Proposed Approach To Iso Compliance And Validation For Metrology Laboratories, J. Lyle Bagley
Engineering Management & Systems Engineering Theses & Dissertations
International competition among metrology laboratories, as well as their customers, has intensified the incentive to seek either accreditation to ISO Guide 25 or ISO 9000 quality system registration for the laboratory. The debate continues as to which is more beneficial to the laboratory and its customers once the decision is made to pursue one or the other. This study addresses the advantages and limitations of each, and how best to prepare for complying with ISO standards. The literature was reviewed and ISO certification experts were questioned about these issues. The results were combined with new applications of existing operations research …
Predicting Utility Bills For Air Combat Command A Study Of Forecasting Techniques, William L. Luthie
Predicting Utility Bills For Air Combat Command A Study Of Forecasting Techniques, William L. Luthie
Engineering Management & Systems Engineering Theses & Dissertations
Many companies use forecasting techniques as a tool in managing their assets. Trends in such items as sales, population and inventory levels have all been determined at one time or another using forecasting, yet research indicates that these tools have not been utilized to predict utility budgets. This research was conducted to determine if such techniques could be applied to the specific task of predicting the utility bill at an Air Force base. Three quantitative models were chosen, the Moving Average, Exponential Smoothing and Regression, to determine their applicability to the task at hand. One base within Air Combat Command, …
Domain Limitations And Interface Requirements For Expert Developed Knowledge Based Systems, Bernard Lee Lewis
Domain Limitations And Interface Requirements For Expert Developed Knowledge Based Systems, Bernard Lee Lewis
Engineering Management & Systems Engineering Theses & Dissertations
The expanded use of graphical, case-based and object oriented techniques in expert systems creation has made it more practical for domain experts to develop their own applications. This thesis focuses on the elements necessary in an expert/developer interface and looks at various forms and techniques that exemplify such an approach. The spreadsheet metaphor is used for an interface or managed set of interfaces that a domain expert can use in building his own expert system or prototype. criteria are established for such interfaces and recent commercial offerings that make expert-created knowledge-bases more practical are reviewed for techniques that qualify. Approaches …
A Case Study In The Development Of A Cost Reduction Methodology In The Public Sector, Ross Cooper Haines
A Case Study In The Development Of A Cost Reduction Methodology In The Public Sector, Ross Cooper Haines
Engineering Management & Systems Engineering Theses & Dissertations
Intense fiscal pressures have caused the Department of Defense (DoD) to explore new ways of reducing operating expenses. The primary technique used to achieve this objective is the use of competition - recently for maintenance requirements not previously subjected to competition. One such maintenance requirement is the periodic overhaul of one of the Navy's front line fighter aircraft - the F-14A Tomcat. This case study documents the cost reduction methodology developed by the DoD's incumbent overhaul facility in preparation for competition. The methodology discusses task time estimation, cost center structure, labor rate development and analysis, internal cost transfers as well …