Operations and Supply Chain Management Commons^™

Penswastaan Kereta Turus Dan Utiliti Atm : Persepsi Terhadap Perkhidmatan Dan Juga Perbandingan Kos Antara Spanco Dan Atm, Mohamad Yusoff Yaacob, Shaiful Hisham Mahat, Daud Mohamed

Student Works (2000-2009)

Sejak awal penubuhan ATM pengurusan fleet kereta turus dan utiliti adalah dibawah tanggungjawab ATM sepenuhnya. Waiau bagaimanapun pada 30 Oktober 1993, perjanjian konsesi telah ditandatangani antara Kerajaan Malaysia dan Syarikat SPANCO Sdn Bhd. Dalam perjanjian ini, SPANCO telah diberi hak konsesi untuk memberi perkhidmatan kereta turus dan utiliti kepada ATM. Setelah hampir 9 tahun SPANCO memberi perkhidmatan kini timbul beberapa rungutan di kalangan pengguna ATM yang secara umumnya mempersoalkan keupayaan SPANCO dalam memberi perkhidmatan yang terbaik kepada ATM. Kos sewaan serta senggaraan yang terus meningkat dari tahun kesetahun juga turut menimbulkan persoalan mengapa pengurusan kereta turus dan utiliti ini perlu …

A Force Structuring Model For A Moderately-Sized Nato Country, Hakan Bal

Theses and Dissertations

The purpose of this research is to develop a mathematical model which will aid the decision-makers of a moderately-sized NATO country to develop their future force structure composition. As the number of alternatives grows, and as the consequences become more important and more uncertain, the force structuring decision becomes increasingly difficult. The valuable lessons of past experience cannot be ignored. However, when one considers the high rotation rates of most countries' air forces, the rapid change in technology and the vast array of options available, even the most experienced leaders need some assistance. Hence, decision support tools are needed to …

Aircraft Maintenance Performance: The Effects Of The Functional Decentralization Of On-Equipment Maintenance, Mark A. Commenator

Theses and Dissertations

The Air Force has implemented various aircraft maintenance organizational structures. The implementation of the Objective Wing in the early 1990s was the latest occurrence of reorganization. This research looks at the effect of the type of aircraft maintenance organizational structure on aircraft maintenance performance. The type of organizational structure was defined by the functional centralization of the on-equipment maintenance. Aircraft maintenance performance was measured using TNMCM rates, fix rates, repeat/recur rates, man-hours per flying hour, and scheduling effectiveness rates. Three F-15 wings and three F-16 wings were selected to compare the changes in aircraft maintenance performance and to determine if …

The Effect Of Improving The Logistics Pipeline On Supply Support Of Aerospace Expeditionary Forces, Steven L. Martinez

Theses and Dissertations

One of the biggest considerations for an Aerospace Expeditionary Force (AEF), in terms of cost and airlift requirement, is the use of aircraft spares kits to support combat operations. To date, these kits are built on the assumption that there would be no resupply for the first 30 days of a contingency. However, with more efficient transportation and information resources available today, it seems logical that resupply would occur much more quickly. If so, the Air Force should be able to trim its wartime stocks of aircraft spares. This thesis investigated the effect of improving the logistics pipeline on the …

Requirements-Based Methodology For Determining Age Inventory Levels, James A. Mackenna

Theses and Dissertations

The purpose of this research was to illuminate crucial areas in analyzing AGE needs on an operational flightllne and assist in determination of AGE inventory levels. Further refinements could result in more objective and accurate assessments of actual flightline AGE needs and associated risks involved with reduction of AGE inventory levels. The research in this thesis consists of a discrete event simulation to determine desired AGE inventory level through an analysis of aircraft launches and wait time for AGE support by varying AGE (mean time between failure) MTBF and AGE inventory. Stochastic inputs for aircraft failures, AGE delivery times, and …

The Distributer's Three-Dimensional Pallet-Packing Problem: A Human Intelligence-Based Heuristic Approach, Erhan Baltacioglu

Theses and Dissertations

The Distributor's Pallet Packing Problem is to load a set of distinct boxes with given dimensions on pallets or in containers to maximize volume utilization. This problem is still in its early stages of research, but there is a high level of interest in developing effective models to solve this NP-hard problem to reduce the time, energy and other resources spent in packing pallets. In its search to improve operations, the Air Force is also making an effort to solve this problem. Building an analytical model and developing a genetic algorithm approach have been tried, but the problem needs more …

Re-Engineering Of The Quality Assurance Process Using Work Study Methodology, Yew Hoong Chia

Student Works (2000-2009)

This project paper explores the application of Work Study methods to improve the manufacturing processes in the current semiconductor manufacturing environment. The scope of the project is narrowed down to the Quality Assurance Out-going Final Inspection (QA OFI) Gate process step at the End-Of-Line (EOL) Operations in Motorola Malaysia Sendirian Berhad. This QA OFI Gate process step had recently become a bottleneck to the total EOL operations and in need of productivity improvement. It was observed that Work Study methods were not being used extensively or applied in a systematic manner in the company being studied. Many changes were made …

Vehicle Routing For Milk Procurement, Janat Shah

IIMB Management Review

In a typical co-operative dairy, one of the significant operating costsunder the control of the management is the cost of milk collectionand transportation. (Exhibit 1 shows the typical cost structure of adairy) The dairy under study picked up milk from 500-800 pick uppoints (nodes) twice a day. The vehicle routes were decided manu-ally keeping in mind the peak load expected at the nodes during thecoming year. The dairy had about 50 odd routes, each route cover-ing an average of 15 nodes. Usually dairies do not own the ve-hicles but use transport contractors who enter into an annual con tract with …

Product-Mix Optimiser For An Integrated Steel Plant, Goutam Dutta, Gopal P Singh, P N Roy

IIMB Management Review

Optimal utilisation of constrained resources is one of the most important problems in the area of operations management. The determination of optimal productmix is an extremely difficult task for an organisation producing multiple products in multiple stages, sharing a set of common plant resources and experiencing a fluctuating market over time. In the absence of a quick method to determine optimality under changing conditions, plant managers have to make decisions based on their experience and intuition. 

The Pilgrim's Progress: Operations Research In Queuing, G Raghuram

IIMB Management Review

Good management practice is synonymous with applying operations research (OR). Both imply a systematic approach beginning with clarity in problem definition, understanding the objectives and constraints, characterising the alternatives (these three steps constitute  model building), evaluating (analysing) them and finally selecting an alternative for implementation. In addition to this basic methodology, there is also an implication of a quantitative basis to the extent possible. It is this quantitative basis which lends to the common perception that good management practice is much larger than OR

Supply Chain Analysis And Management, Vikas Chandra

IIMB Management Review

No abstract provided.

The Distributor’S Three-Dimensional Pallet-Packing Problem: A Mathematical Formulation And Heuristic Solution Approach, Brian P. Ballew

Theses and Dissertations

It is through practice and experience Air Force loadmasters are able to pack the Air Force standard HCU-6/E (463L) pallets efficiently. Although the loadmasters perform their jobs exceptionally well, the Air Force is in search of a model that will more efficiently pack the pallets. We have developed a mathematical formulation of the three-dimensional pallet-packing problem which minimizes the amount of unused space on a pallet. The formulation ensures each box is packed with the correct volume and dimensions, and ensures the volume of all the boxes packed is less than the available pallet volume. Additionally, the formulation ensures that …

A Combined Inventory And Delivery Model For Repairable Items, Bahtiyar Eren

Theses and Dissertations

Traditionally, logistics analysts have treated the delivery problem separate from the inventory and repair problems. In other words, each of these three problems-delivery, inventory, and repair-are treated individually. We combine the vehicle routing problems and inventory allocation problems in a single formulation. Furthermore, lateral re-supply is considered, in that supplies are not only available from the main depot, but also from other bases. After we get the lateral re-supply information, we set a delivery allocation plan out of the main depot. Such allocations are then delivered via vehicles stationed at the main depot. There is a repair capability for each …

Using Rsm, Doe, And Linear Regression To Develop A Metamodel To Predict Cargo Delivery Of A Time Phase Force Deployment Document, Kenneth S. Browne

Theses and Dissertations

Air Mobility Command (AMC) uses the Airlift Flow Model as their primary tool to estimate the amount of cargo delivered in a Time Phase Force Deployment Document (TPFDD). The primary objective of this research was an exploratory investigation in the development of a metamodel to predict the amount of cargo delivered from a TPFDD by AMC into a theater. In creating a valid metamodel the analyst would be able to quickly provide the decision-maker with accurate insights should input parameters change. This would save valuable time and replace the need to physically change the input parameters and re-run the simulation. …

A Strategic Analysis Of Powder Coating Industry In Malaysia : A Case Study Of Ici-Nof Powder Coatings (M) Sdn. Bhd, Meng San Tay

Student Works (2000-2009)

The powder coating industry in Malaysia has increasingly replaced the traditional liquid paints in metal-based industries due to its environmental friend liness, governmental legislation and improved technology. The powder coating industry had grown steadily in the early 1990's in tandem with the Malaysian economic performance. The high growth rate of the industry has attracted new entrants to set up manufacturing plants in the country. However, the unprecedented currency crisis in 1997 has drastically reduced the market size and demand. Faced with an overcapacity scenario, the players are scrambling for market shares by competing heavily in price. The research aims to …

The Challenge Of Maintaining Or Replacing An Aging Airlift Fleet: A Cost/Capability Analysis For The Brazilian Air Force Mobility System, Julio C. Messias

Theses and Dissertations

Despite the high Operational and Support costs incurred, the Brazilian Air Force's (BAF) declining budget has led to the establishment of conservative policies that favor short run solutions for a critical BAF airlift problem of operating an aging fleet. As a result of this policy, service life extensions of older airlift aircraft are the preferred solution. Using an equal airlift capacity approach to examine the Brazilian Air Force mobility system, this research performs a cost comparison analysis between two aircraft currently in operation at Brazilian's airlift command: C-130 Hercules and C-95 Bandeirante. To accomplish the cost analysis, this research develops …

Cost-Benefit Analysis Of Leasing Versus Buying Air Force General Purpose Vehicles In The Continental United States, Robert J. Neal Jr.

Theses and Dissertations

Given the increasingly aging vehicle fleet and declining vehicle budget, this research performed a cost-benefit analysis of leasing versus buying various Air Force general purpose vehicles for the entire continental United States (CONUS). In contrast to previous analyses, which have examined the leasing versus buying issue on a base-by-base basis, this analysis studies the issue from an Air Force-wide perspective using a cost-buying model. Costs and benefits are calculated for three purchasing options (Air Force ownership, GSA leasing, and commercial leasing) to determine and recommend the best alternative for the Air Force. Finally, a sensitivity analysis is to test the …

Space-Available Transportation: An Analysis Of The Cost Of Providing 'Free' Travel, Frank J. Long

Theses and Dissertations

The purpose of this study is to estimate the costs borne by the government for providing space-available travel to eligible uniformed services personnel and their dependents. As the primary provider of the space-available privilege, it is important that the Air Force have an estimate of the burden that the administration of that privilege places on the budget. In January 1993, the Air Force discontinued its 15-year-old practice of charging a fee for space-available travel aboard AMC-owned or controlled aircraft. The fee had been set at $10 in 1978 and was collected to recover a portion of the costs associated with …

An Examination Of The United States Air Service's Logistics Operations, Andrew W. Hunt

Theses and Dissertations

This historical study details the U.S. Air Service's logistics operations at home and abroad in an attempt to determine the relationship between the process and more recently established logistic principles. The information in the study was collected through an extensive review of both first hand accounts and historical compilations of the nature of World War I aviation logistics. Information regarding the production of the De Haviland DH-4 and Liberty Engine serve as the primary case examples of the operation of the logistics system. The established principles required for comparison were extracted from the writings of a number of expert military …

The Scheduling Process In A Depot From The Brazilian Air Force, Fabricio J. Saito

Theses and Dissertations

The Brazilian Air Force (BAF) in its logistic structure contains 5 Air Logistic Centers (depots). This thesis concentrates its analysis on one of the most important BAF depots located at Sao Paulo (PAMASP). This thesis explores the scheduling process currently used in PAMASP. This thesis adopted a managerial approach in a sense that it looked to take a big picture of the current process. The researcher performed field interviews with the goal of describing the process. During the visit to PAMASP, the researcher also gathered problems related to the process. The recommendations stated on this study were based on the …

The Cost Effective Quality Maintenance Of Ship Containers : Management And Technical Practices Which Reflect High Standards Of Containers In The Ceylon Shipping Corporation, H.M. Ajith Dehipola

World Maritime University Dissertations

This dissertation seems to highlight the need of have a quality repair standards to develop, implement and oversee the container repairs in the Ceylon shipping corporation. The mechanism and process through which this can be achieved is examined and explained by the author in a manner which can be understood by the readers in the late chapters. It is also emphasised, in this work that the need exist for properly and highly trained personal to fulfil the required standards in container repairs. It is fairly clear that, the life of a container is depend from many factors. Some of the …

An Analysis Of Early Software Reliability Improvement Techniques, John G. Leonard, Ric K. Nordgren

Theses and Dissertations

This research explores early life cycle software reliability prediction models or techniques to predict the reliability of software prior to writing code, and a method for increasing or improving the reliability of software products early in the development life cycle. Five prediction models and two development techniques are examined. Each model is statically analyzed in terms of availability of data early in the life cycle, ease of data collection, and whether data is currently collected. One model and the two techniques satisfied those requirements and are further analyzed for their ability to predict or improve software reliability. While the researchers …

Fisheries Management Report No. 1 - The Impact Of Occupational Safety And Health On The Management Of Western Australian Fisheries, Cameron Wilson

Fisheries Published Reports

This report has been produced at the request of Fisheries Western Australia ("Fisheries Department") as a result of a fixed term consultancy by Pacific Management Systems Pty Ltd ("Pacific").

In essence, the Terms of Reference require consideration of the interaction and possible conflict between the principal piece of legislation governing safety and health of employees in Western Australian workplaces, the Occupational Safety and Health Act 1984 ('OSH Act'), and the Fish Resources Management Act 1994 ('FRM Act') being the principal source of legislation in respect of the management of Western Australia's fish resources.

Concerns with regard to the possible conflict …

Foreign Military Sales Supply Support: Is There A Better Way?, Eric G. Ellmyer, Won Joon Jang

Theses and Dissertations

In today's world of declining defense budgets, there is an increasing need for South Korea to ensure they obtain the best dollar value when procuring defense articles. With the increasing financial situation, the purpose of this thesis is to research a surrogate third party firm and determine to what degree South Korea and other foreign military sales customers obtain the best value for their money for follow-on support item procurements. South Korea has participated in the Parts and Repair Ordering System program since its inception. However, South Korea has received little, if any, feedback regarding lead time and cost performance …

Applying Cross-Decking And Activity-Based Costing To Military Distribution Centers: A Proposed Framework, Jonathan P. Elliott, Dwight H. Hintz Jr.

Theses and Dissertations

Current events and fiscal constraints have focused DoD planners' attention on reducing logistics costs and improving efficiency while maintaining effective combat operations support. Military leaders are seeking private industry best practices that may help the DoD achieve these goals. Two commercially successful business practices that may help the DoD achieve its goals are cross-docking and Activity-Based Costing (ABC). Cross-docking is a commercially proven approach to material distribution through a distribution center that can help reduce inventories, speed material flows, and cut related logistics activity costs. However, the DoD is faced with the challenge of costing current and potential logistics processes …

Identification And Reduction Of Bottlenecks Concerning Micap Re-Supply Of F-16 Weapons System Avionics Line Replaceable Units, Karl N. Muno, Patrick K. Pezoulas

Theses and Dissertations

This thesis evaluates selected F-16 avionics Line Replaceable Units (LRUs) transiting the logistics pipeline in order to examine the existence of bottlenecks and explore potential solutions within the current Department of Defense (DoD) logistics reparable pipeline. A previous study reported that a reduction in the overall pipeline resupply time of at least one day equates to a savings of approximately $25.45 million (Hill et al, 1990:iii). Bottlenecks cause movement delays to the entities moving through the logistics reparable pipeline. The pipeline segments are: AO (requisition), AE (item availability), AS (shipment status), and D6 (receipt). The bottlenecks of concern are those …

Aerial Port Location Study, Levenchi L. Dingle

Theses and Dissertations

This study performed an investigation on determining the appropriate number and locations of continental United States aerial ports. To accomplish this a linear programming formulation was adapted with the optimizing function based on trading off the cost of shipping cargo against port operating costs. Cargo would travel from CONUS origin, through aerial port of embarkation (APOE), to aerial port of debarkation (APOD) at minimum cost to the DoD. The need for the study was precipitated by continued reductions in the military budget, consolidation of defense depots, and the reduction in the number of personnel stationed overseas. Cargo movement data was …

Aerospace Ground Equipment's Impact On Aircraft Availability And Deployment, Jeffrey D. Havlicek

Theses and Dissertations

The first purpose of this thesis was to study the effects of four factors on aircraft availability: the aerospace ground equipment (AGE) design configuration, the mean time between failure (MTBF) of AGE, the mean time to repair (MTTR) AGE, and the travel time to transport the AGE around the flightline. A simulation developed by Carrico (1996) that has its foundation based on the Logistics Composite Model (LCOM) was used. ANOVA results indicated that the present estimates of these factors are too broad for trade studies that include an estimate of aircraft availability to begin. The time it takes AGE to …

An Analysis Of Air Mobility Express Requirements Operating Within A Lean Logistics Wartime Environment, Jennifer A. Bollinger, Kellie L. Davila-Martinez

Theses and Dissertations

Lean Logistics was developed in response to budget cuts, force reductions, and a new political world order. The primary objective of Lean Logistics is to minimize the total system wide costs of the Air Force organization. Currently, the Air Force is seeking to cut costs by reducing inventories, improving repair processes, and employing faster transportation where possible. The purpose of this thesis is to determine if the Air Mobility Express (AMX) current sizing plan is capable of supporting the retrograde assets generated during the sustainment portion of a war. The Dyna-METRIC version 6.4 simulation program is employed to analyze the …

Crisis Airlift Management: Effective Scheduling, David C. Penny

Theses and Dissertations

This is a report on the basis, data, findings, and models developed for US Transportation Command and Headquarters Air Mobility Command. Focusing on the dynamic scheduling problem that arises during management of airlift assets into space-constrained airfields during a crisis, this research explains the conditions surrounding this event, discusses several areas of potential cross-functional applications, presents analysis of current performance, and provides several modeling possibilities for schedule efficiency. Past research in the Flow Management Problem (an airline flow control issue) is extensive, but specific applications in crisis airlift are long in coming, primarily due to the complexity of the environment. …