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An Adaptive Tabu Search Heuristic For The Location Routing Pickup And Delivery Problem With Time Windows With A Theater Distribution Application, Robert E. Burks Jr. Sep 2006

An Adaptive Tabu Search Heuristic For The Location Routing Pickup And Delivery Problem With Time Windows With A Theater Distribution Application, Robert E. Burks Jr.

Theses and Dissertations

The time constrained pickup and delivery problem (PDPTW) is a problem of finding a set of routes for a fleet of vehicles in order to satisfy a set of transportation requests. Each request represents a user-specified pickup and delivery location. The PDPTW may be used to model many problems in logistics and public transportation. The location routing problem (LRP) is an extension of the vehicle routing problem where the solution identifies the optimal location of the depots and provides the vehicle schedules and distribution routes. This dissertation seeks to blend the PDPTW and LRP areas of research and formulate a …


Modeling A Reparable Supply Chain And Applying Cpfr Concepts, Sandra A. Mayhall Jun 2006

Modeling A Reparable Supply Chain And Applying Cpfr Concepts, Sandra A. Mayhall

Theses and Dissertations

The Air Force supply chain includes parts required to build, fix, or maintain aircraft delivered to the warfighter to carry out missions. Industry has shown that following Collaborative Planning, Forecasting, and Replenishment (CPFR) concepts, particularly reducing inventory through accurate demand forecasts, has increased profits in part by lowering the holding costs of inventory and increasing sales. This is analogous to the Air Force increasing aircraft availability. There is scant evidence that demand forecasts generated at any level in the Air Force are shared with the intent of coordinating replenishment. This thesis uses a simple discrete-event stochastic simulation model to show …


Perceptions Of The Pure Pallet Program, Michael T. Dye Mar 2006

Perceptions Of The Pure Pallet Program, Michael T. Dye

Theses and Dissertations

In coordination with USCENTCOM, USTRANSCOM, and the DLA, AMC implements the pure pallet program to improve warfighter support. The cornerstone of the pure pallet program rests upon the consolidation of materiel early in the supply-chain by constructing end-user specific pallets. This research utilized a web-based survey to measure the perceptions of the air transportation specialists and logistics readiness officers who are implementing the program on behalf of the Air Force. The results indicate that the pure pallet program is achieving its intended results; however, there is a perception problem. Recommendations center on educating personnel on the importance of suboptimization avoidance …


Building A Consensus Forecast For Crude Oil Prices, Kenneth W. Burke Mar 2006

Building A Consensus Forecast For Crude Oil Prices, Kenneth W. Burke

Theses and Dissertations

Skyrocketing fuel prices have stressed the Department of Defense's budget in recent years. In 2001 the DoD spent $4.7 Billion on fuel with the Air Force consuming $2.7 Billion. These figures have grown over due to these increases as well as the increased flying ours to support the Global War On Terror. In fact, the Fiscal Year 2007 budget has already been increased by $1.1 billion, or 1% of the total budget, to accommodate the increased price of fuel. Current forecasts of this resource have yielded poor results, impairing the DoD's ability to budget this critical expense. Further because the …


Hazardous Material Cargo Frustration At Military Aerial Ports Of Embarkation, Niel E. Christensen Mar 2006

Hazardous Material Cargo Frustration At Military Aerial Ports Of Embarkation, Niel E. Christensen

Theses and Dissertations

Since military units often require critical hazardous materials in an expedited manner, identifying choke points within the supply chain is necessary to improve logistic support to front line forces. Hazardous materials are some of the most critical assets for the war fighter, as well as the most restrictive and often most time consuming for transportation. This research quantifies the extent that vendor and depot supplied cargo is being delayed at Aerial Ports of Embarkation. By looking at frustrated hazardous material at Charleston Air Force Base, South Carolina and Dover Air Force Base, Delaware, a case study methodology is used to …


Improving Maintenance Data Collection Via Point-Of-Maintenance (Pomx) Implementation, William D. Cone Mar 2006

Improving Maintenance Data Collection Via Point-Of-Maintenance (Pomx) Implementation, William D. Cone

Theses and Dissertations

Maintenance data collection is an integral part of flightline aircraft maintenance. Historically, this data was input via traditional keyboard data entry methods at a computer terminal. These terminals are typically located in the aircraft maintenance unit (AMU) facility, away from where the actual maintenance is being performed. In contrast to the traditional approach, the Point-of-Maintenance system (POMX) seeks to reduce the data entry burden while increasing data accuracy through the use of E-Tools such as ruggedized laptop computers and handheld portable maintenance aids (PMAs). POMX enables data entry at the aircraft or other maintenance location via wireless local area network …


Understanding Innovation Adoption In The Air Force, Morgan J. Evans Mar 2006

Understanding Innovation Adoption In The Air Force, Morgan J. Evans

Theses and Dissertations

Innovation adoption has become a critical issue for organizations in both the public and private sectors. The search for competitive advantage has led to the recognition that innovation is a vital ingredient for an organization's survival and profitability in this information age. The United States Air Force is seeking to adapt to this new information age by transforming its business processes in order to sustain its competitive advantage as the world's most respected air force. Adopting innovations and integrating new or improved technologies, capabilities, concepts, and processes into Air Force planning and acquisition activities, organizations, and operations are goals of …


An Exploratory Case Study Of Information-Sharing And Collaboration Within Air Force Supply Chain Management, Wendy S. Kierpiec Mar 2006

An Exploratory Case Study Of Information-Sharing And Collaboration Within Air Force Supply Chain Management, Wendy S. Kierpiec

Theses and Dissertations

This research sought to identify key elements of the Air Force supply chain as it relates to industry, determine how techniques of information-sharing and collaboration are used to make Air Force Supply Chain decisions, and examine how the resulting impacts on operational readiness may be measured. A multiple case study research design was used to investigate the application of information-sharing and collaboration in two distinct Air Force supply chains. Cross-case comparative analysis of the supply chains supporting the PTO shafts on the F-15 engine and the T-38 engine evaluated each supply chain's characteristics and levels of information-sharing and collaboration. The …


Factors Affecting The Transfer Of Basic Combat Skills Training In The Air Force, Rodney E. Mccraine Mar 2006

Factors Affecting The Transfer Of Basic Combat Skills Training In The Air Force, Rodney E. Mccraine

Theses and Dissertations

During Operations ENDURING FREEDOM (OEF) and IRAQI FREEDOM (OIF), many Airmen in support career fields were deployed to hostile environments like Afghanistan and Iraq. Deployments of this nature are a departure from normal Air Force operations where support personnel are normally far from the front lines of battle. The purpose of this research was to understand the factors that affect the transfer of basic combat skills training from the classroom to the battlefield. Specifically, this thesis sought to answer five research questions addressing the current combat skills training requirements, the perceived training transfer of basic combat skills, the factors that …


Access Based Cost Estimation For Beddown Analysis, Jasper E. Pennington Mar 2006

Access Based Cost Estimation For Beddown Analysis, Jasper E. Pennington

Theses and Dissertations

The purpose of this research is to develop an automated web-enabled beddown estimation application for Air Mobility Command in order to increase the effectiveness and enhance the robustness of beddown estimates. This includes generating rough order of magnitude cost estimates for the potential beddown of air mobility assets as well as serving as a centralized data warehouse for current and future scenarios. The application developed is intended to provide the analyst with the maximum amount of both quantitative and qualitative input for any potential decision to quickly identify infrastructure requirement shortfalls and associated costs to satisfy those shortfalls. The application …


Headquarters Air Force Material Command Customer Relationship Study, Damelsa D. White Mar 2006

Headquarters Air Force Material Command Customer Relationship Study, Damelsa D. White

Theses and Dissertations

Because of the lack of product and price differentiation, many organizations consider Customer Relationship Management (CRM) their primary focus. CRM uses information about each customer to make each customer more valuable to the organization, and the organization more valuable to the customer, while decreasing the cost of servicing the customer. However, an organization cannot conform to customer specifications if the needs of the customers as well as what the customer values is not known. As a result, Headquarters (HQ) Air Force Materiel Command (AFMC) is taking the initiative to gain an understanding of their customers. The purpose of this study …


Algebra Of Tankers, Margaret M. Romero Mar 2006

Algebra Of Tankers, Margaret M. Romero

Theses and Dissertations

The Air Force's aerial refueling tanker aircraft provide essential support for deployment and employment of combat and combat support aircraft, by extending their endurance and enhancing fighting efficiency. As the lead command for air refuelers, Air Mobility Command (AMC) must frequently examine the capability of current and proposed tanker fleets to meet mission requirements due to limited tanker resources. Analysts in AMC primarily use the Combined Mating and Ranging Plans System to provide actual tanker/receiver aircraft schedules and flight plans that take into account numerous system constraints. However, this tool can take weeks to run. Even recently developed quick look …