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Articles 1 - 12 of 12
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A Group Theoretic Tabu Search Methodology For Solving The Theater Distribution Vehicle Routing And Scheduling Problem, John R. Crino
A Group Theoretic Tabu Search Methodology For Solving The Theater Distribution Vehicle Routing And Scheduling Problem, John R. Crino
Theses and Dissertations
The application of Group Theory to Tabu Search is a new and exciting field of research. This dissertation applies and extends some of Colletti's (1999) seminal work in group theory and metaheuristics in order to solve the theater distribution vehicle routing and scheduling problem (TDVRSP). This research produced a robust, efficient, effective and flexible generalized theater distribution model that prescribes the routing and scheduling of multi-modal theater transportation assets to provide economically efficient time definite delivery of cargo to customers. In doing so, advances are provided in the field of group theoretic tabu search and its application to difficult combinatorial …
A Large Scale Integer Linear Program As A Decision Support Tool For Force Mix Selection, Craig A. Punches
A Large Scale Integer Linear Program As A Decision Support Tool For Force Mix Selection, Craig A. Punches
Theses and Dissertations
Recently, organizations have been modifying performance appraisal systems to collect data from multiple sources to guide the development of supervisors. Upward feedback programs focus on development rather than appraisal by supplementing traditional downward feedback with subordinate feedback. The upward feedback instrument developed in this study was designed to measure effective leadership behaviors utilizing an existing five-dimension leadership taxonomy and a new dimension that represents creating a fun workplace. The developed instrument and a proven commercial instrument utilizing the same theoretical framework were administered to samples of N = 391 and N = 417 respectively, and tested for reliability and validity. …
Interim Brigade Combat Team (Ibct) Munitions Distribution Study, Todd S. Bertulis
Interim Brigade Combat Team (Ibct) Munitions Distribution Study, Todd S. Bertulis
Theses and Dissertations
This research sought to describe an alternative way for calculating expected back order (EBO) for reparable inventory systems. The high costs associated with reparable items management, together with its importance for system's availability, make the assessment of back orders of great importance in supporting decisions of what-to-buy and where-to-locate those items. Starting at the point that existing models (METRIC, MOD-METRIC, and VARIMETRIC) rely on some assumptions that often cannot be met in real life, the proposed method (called P-METRIC), which is a mix of simulation and mathematical analytical model, relaxes assumptions about Demand, Time to Repair (TTR), and Ordering & …
Offsets In International Weapons Acquisitions: The Turkish Experience, Ahmet Ilbas
Offsets In International Weapons Acquisitions: The Turkish Experience, Ahmet Ilbas
Theses and Dissertations
Agile Combat Support is focused on providing fast, flexible, responsive, and reliable support as the foundation of all Air Force operations. Combined with the current Air Force focus on ensuring Time Definite Delivery (TDD) and reducing Customer Wait Time (CWT), this new mind-set will place ever-increasing emphasis on supply chain performance as a determining factor in overall campaign effectiveness of future conflicts. An improved methodology for the systematic performance analysis of the distribution segment of the logistics pipeline may aid AFMC transportation personnel (AFMC/LSO) in the quick identification of system bottlenecks, identification of root causes of performance shortfalls, and the …
Comparative Analysis Of Leasing Versus Buying General Purpose Vehicles (Sedan) In The Korean Air Force, Jung J. Kim
Comparative Analysis Of Leasing Versus Buying General Purpose Vehicles (Sedan) In The Korean Air Force, Jung J. Kim
Theses and Dissertations
Elmendorf Air Force Base (AFB) is one of the two key ERS airfields for the Pacific Theater. The condition of en route airfields has recently come to the attention of the DoD and the GAO. Delays at these airfields may cause personnel and equipment to arrive late in theater. Fuel systems at Elmendorf AFB are currently being improved, but the GAO questions whether these improvements will help the throughput. As well as being an en route airfield, Elmendorf is also an important Interim Brigade Combat Team (IBCT) APOE for Fort Richardson. The IBCT is designed to operate in small-scale contingency …
Use Of Critical Chain Scheduling To Increase Aircraft Availability, Daniel D. Mattioda
Use Of Critical Chain Scheduling To Increase Aircraft Availability, Daniel D. Mattioda
Theses and Dissertations
This study addresses the operation and support cost differences between the TUAF C-130E & C-130B, and the USAF C-130J aircraft. The TUAF C-130s have been being used for more than 30 years and changing world situations give armed forces different roles, and Turkey participates in all peacekeeping missions that are assigned by NATO (North Atlantic Treaty Organization) and the United Nations. While performing these roles, the importance of air mobility and the importance of reliability became widely appreciated. Moreover, the coming retiring age of the existing C-130s in the TUAF forced the TUAF to look for ways to improve its …
Development Of A Method For Assessing The Organizational, Cultural, And Political Considerations Affecting The Insertion Of Siloms Into The Mod, Samir Mustafa
Theses and Dissertations
United States Air Force Special Operations Command (AFSOC) has a minimal number of aircraft at its disposal. As a result, the aircraft are considered high demand, low-density (small number in Air Force inventory) weapon systems. Any chance to increase aircraft availability would greatly enhance the capability of AFSOC. Isochronal maintenance (ISO) conducted once every 365 days (per AFI for C-130 aircraft) provides the best opportunity to increase aircraft availability by improving the scheduling of tasks and accurately estimating the inspection duration. Scheduled maintenance portrays the characteristics of projects, therefore, this theses proposed that Critical Chain (CC) scheduling, a project management …
Process Mapping A Diminishing Manufacturing Sources And Materiel Shortages Reactive Management Strategy: A Case Study, Robert E. Overstreet
Process Mapping A Diminishing Manufacturing Sources And Materiel Shortages Reactive Management Strategy: A Case Study, Robert E. Overstreet
Theses and Dissertations
In order to handle its obligations, the Brazilian Ministry of Defense (MoD) will need an information system capable of managing logistics information from all military services. A project to develop an integrated information system to fit the requirements of different, but connected, organizations has inherent challenges. Differences in the organizational structures, cultures and political aspects, are key issues to be observed before the development to assure the project's success. The same is applicable when trying to adapt an already existing information system to fill the needs of another organization. In the new organization, it is mandatory to assess the feasibility …
An Optimization Of The Hub-And-Spoke Distribution Network In United States European Command, Joseph B. Skipper
An Optimization Of The Hub-And-Spoke Distribution Network In United States European Command, Joseph B. Skipper
Theses and Dissertations
The development of Expeditionary Aerospace Force (EAF) operations requires rethinking of many Air Force functions. A Logistics Transformation Team, comprising Air Force and KPMG Consulting Incorporation personnel, is leading much of this transformation work. The very first step of the transformation initiatives is demand planning, which is the process of translating the war fighter's needs into executable logistics support plans and schedules. One important area that the demand planning focuses on is engine maintenance. This sub-mission is assigned to the F101 Engine Pathfinder Team, which is responsible for increasing the availability of the F101 engine. As part of the F101 …
Advanced Planning And Scheduling In The United States Air Force Depot-Level Maintenance, Shenn-Rong Shyong
Advanced Planning And Scheduling In The United States Air Force Depot-Level Maintenance, Shenn-Rong Shyong
Theses and Dissertations
In the post cold war environment, the rapid deployment of combat capability is critical. Deployment lift capability is limited, however, so the real-time selection of the optimal combat asset mix that balances capability provided and sustainment required has become paramount. In this model, the value of a force mix is determined by the sum of the individual weapon system "suitabilities" against their assigned missions. The value is constrained by the numerical limits on the items required to create and support the force mix, and the lift required to move these items. The research considered heuristic and complete enumeration methods against …
Modeling Aerospace Ground Equipment (Age) Usage In Military Environments, Ilhan Kaya
Modeling Aerospace Ground Equipment (Age) Usage In Military Environments, Ilhan Kaya
Theses and Dissertations
There is a wide array of multi-attribute decision analysis methods and associated sensitivity analysis procedures in the literature. However, there is no detailed discussion of sensitivity analysis methods solely relating to additive hierarchical value models. The currently available methodology in the literature is unsophisticated and can be hard to implement into complex models. The methodology proposed in this research builds mathematical foundations for a robust sensitivity analysis approach and extends the current methodology to a more powerful form. The new methodology is easy to implement into complex hierarchical value models and gives flexible and dynamic capabilities to decision makers during …
Improving Performance Analysis Of The Distribution Segment Of The Air Force Logistics Pipeline, Heinz H. Huester
Improving Performance Analysis Of The Distribution Segment Of The Air Force Logistics Pipeline, Heinz H. Huester
Theses and Dissertations
The Army of the future will need to be able to quickly respond to a full spectrum of conflict-from stability and support operations to major theater wars. Today, military leaders have limited options when reacting to the wide range of current threats existing in our world. The nation needs ground combat units that can deploy very rapidly to stabilize a hostile area while possessing combat capabilities able to terminate a threat if necessary. The Army's answer to this requirement is the Interim Brigade Combat Team (IBCT). This study employs an Arena 5.0 discrete-event simulation model to explore the capabilities of …