A Mathematical Programming Approach For Dispatching And Relocating Ems Vehicles.,
2014
University of Louisville
A Mathematical Programming Approach For Dispatching And Relocating Ems Vehicles., Farshad Majzoubi 1983-
Electronic Theses and Dissertations
We consider the problem of dispatching and relocating EMS vehicles during a pandemic outbreak. In such a situation, the demand for EMS vehicles increases and in order to better utilize their capacity, the idea of serving more than one patient by an ambulance is introduced. Vehicles transporting high priority patients cannot serve any other patient, but those transporting low priority patients are allowed to be rerouted to serve a second patient. We have considered three separate problems in this research. In the first problem, an integrated model is developed for dispatching and relocating EMS vehicles, where dispatchers determine hospitals for …
A Novel Numerical Framework For Simulation Of Multiscale Spatio-Temporally Non-Linear Systems In Additive Manufacturing Processes.,
2014
University of Louisville
A Novel Numerical Framework For Simulation Of Multiscale Spatio-Temporally Non-Linear Systems In Additive Manufacturing Processes., Nachiket Patil
Electronic Theses and Dissertations
New computationally efficient numerical techniques have been formulated for multi-scale analysis in order to bridge mesoscopic and macroscopic scales of thermal and mechanical responses of a material. These numerical techniques will reduce computational efforts required to simulate metal based Additive Manufacturing (AM) processes. Considering the availability of physics based constitutive models for response at mesoscopic scales, these techniques will help in the evaluation of the thermal response and mechanical properties during layer-by-layer processing in AM. Two classes of numerical techniques have been explored. The first class of numerical techniques has been developed for evaluating the periodic spatiotemporal thermal response involving …
A Heuristic Algorithm For Determining The Part Set In A Powder-Bed Additive Manufacturing Machine.,
2014
University of Louisville
A Heuristic Algorithm For Determining The Part Set In A Powder-Bed Additive Manufacturing Machine., Sonja Dieder
Electronic Theses and Dissertations
The goal of this research is to develop a procedure for the placement of a priority part into a planned build in a powder-bed additive manufacturing machine. Toward that goal, a heuristic procedure was developed that seeks to maximize the revenue in a scheduled build, subject to due-date constraints; i.e., all parts with the closest due date will not only be included in the build, but will be placed near the bottom of the build. Likewise, any part in the scheduled build that does not have an immediate due date is a candidate for removal in order to accommodate a …
Supply Chain Flexibility In The Special Purpose Vehicle Industry.,
2014
University of Louisville
Supply Chain Flexibility In The Special Purpose Vehicle Industry., Florian J. Loderbauer 1982-
Electronic Theses and Dissertations
Supply chains of the Special Purpose Vehicle (SPV) industry are complex and with many constraints. Since the SPV industry is a special field of operation, there is no classical supply chain strategy which is appropriate. It is possible to apply concepts of industries with similar requirements but there is a high loss of time and money because these classical concepts do not fit to the SPV industry. Even strategies of the conventional automobile industry cannot be transferred. Therefore, there is the need to develop a supply chain concept for companies of the SPV industry. As a first step, basic knowledge …
Two-Stage Network Design In Humanitarian Logistics.,
2014
University of Louisville
Two-Stage Network Design In Humanitarian Logistics., Seyed Soroush Moeini
Electronic Theses and Dissertations
Natural disasters such as floods and earthquakes can cause multiple deaths, injuries, and severe damage to properties. In order to minimize the impact of such disasters, emergency response plans should be developed well in advance of such events. Moreover, because different organizations such as non-governmental organizations (NGOs), governments, and militaries are involved in emergency response, the development of a coordination scheme is necessary to efficiently organize all the activities and minimize the impact of disasters. The logistics network design component of emergency management includes determining where to store emergency relief materials, the corresponding quantities and distribution to the affected areas …
Simulation Model For Optimization Of A Landside Harbor Logistic Chain Of Container Terminals.,
2014
University of Louisville
Simulation Model For Optimization Of A Landside Harbor Logistic Chain Of Container Terminals., Klaus Striegel
Electronic Theses and Dissertations
The world wide transportation of all kind of goods with containers is a fast growing business. The challenge is to transport in the shortest time to the lowest cost. The vessels therefore become bigger and bigger. The biggest vessel with 16000 TEU is since December 2012 in service. But the next generation with 18000-22000 TEU is already being built. This raises questions in acceleration of loading and unloading process, the handling in the yards of the harbors and the transportation of the containers to Hinterland. The most common way is still to transport the container from the yard by truck, …
Models For Incorporating Block Scheduling In Blood Drive Staffing Problems,
2014
University of Arkansas, Fayetteville
Models For Incorporating Block Scheduling In Blood Drive Staffing Problems, Yulong Su
Industrial Engineering Undergraduate Honors Theses
The purpose of this research is to develop decision support models that can be used by the American Red Cross (ARC) to schedule blood drives with improved shifts for the phlebotomists that staff them. Currently, phlebotomists work inconsistent hours and the ARC believes this is a leading cause of high turnover rates they are experiencing. For example, phlebotomists sometimes staff a blood drive until 11 PM one night and will have to work another at 8 AM the next morning. Assigning phlebotomists more consistent shifts in blocks of time will definitely improve their work schedule. Before switching to block scheduling, …
Investigating Present And Future Interactions Between Radio Frequency Identification, Additive Manufacturing And Supply Chain Management,
2014
California Polytechnic State University, San Luis Obispo
Investigating Present And Future Interactions Between Radio Frequency Identification, Additive Manufacturing And Supply Chain Management, Michael Nobuhiro Ochi
Master's Theses
A screening experiment was paired with research observing the past, present and futures of additive manufacturing (a.k.a. rapid prototyping, 3D printing), radio frequency identification, and supply chain management. The experiment tested different properties of objects created with a desktop fused deposition modelling printer to observe if any single factors or interactions affected the read range of embedded passive UHF RFID inlay. The combination of material and infill percentage had a statistically significant effect on read range, however the analysis is weak since the data could not justify the normality assumption of ANOVA. Furthermore, the size of the effect was small …
Uncertainty In Relief Supply Distribution,
2014
University of Arkansas, Fayetteville
Uncertainty In Relief Supply Distribution, Christopher A. Bayles
Industrial Engineering Undergraduate Honors Theses
In the aftermath of a natural disaster the efficient planning of humanitarian relief efforts, e.g., delivering supplies to locations in need, can often mean the difference between lives being saved and lives being lost. In this paper we focus on two things: (1) appropriate objectives for routing problems in the context of delivery of relief supplies, and (2) how to handle the uncertainty associated with delivery of relief supplies after a disaster. Through applying uncertainty to parameters such as travel time between locations, we seek to examine if/how optimal routes change as a result of different objectives and the presence …
Robust System For Infection Control: An Industrial Systems Engineering Approach,
2014
University of Nebraska-Lincoln
Robust System For Infection Control: An Industrial Systems Engineering Approach, Sundaravel Vinay Swarup Achudhan
Department of Mechanical and Materials Engineering: Dissertations, Theses, and Student Research
Health care delivery in the United States needs improvement. Each year about 98,000 people die as a result of medical errors and the United States is outranked by a number of developed countries in life expectancy, mortality and comorbidity. Healthcare quality is determined based on the quality of the service provided to the patient during their visit. Apart from the traditional problem solving design and development tools used to improve healthcare quality, The National Academy of Engineering and the Institute of Medicine recommend systems engineering principle and systems engineering tools to be used in health care to improve the industry. …
Time-Driven Activity-Based Costing For Healthcare Provider Supply Chain Processes,
2014
University of Arkansas, Fayetteville
Time-Driven Activity-Based Costing For Healthcare Provider Supply Chain Processes, Martha Isaura Gonzalez
Graduate Theses and Dissertations
In a time when healthcare costs continue to rise, nearly a third of hospital operating expenses are related to supplies, and the healthcare supply chain is complex, it is pertinent for healthcare providers to have a clear understanding of their healthcare supply chain process costs. Having a clear picture into how these costs are driven and where opportunities for cost reductions exist can support supply chain efficiencies. In this research, we develop a Time-Driven Activity-Based Costing (TDABC) supply chain cost management tool for healthcare providers. A TDABC management system can provide healthcare providers with valuable product and process supply chain …
Poisson Distributed Individuals Control Charts With Optimal Limits,
2014
University of Arkansas, Fayetteville
Poisson Distributed Individuals Control Charts With Optimal Limits, Negin Enayaty Ahangar
Graduate Theses and Dissertations
The conventional method used in attribute control charts is the Shewhart three sigma limits. The implicit assumption of the Normal distribution in this approach is not appropriate for skewed distributions such as Poisson, Geometric and Negative Binomial. Normal approximations perform poorly in the tail area of the these distributions. In this research, a type of attribute control chart is introduced to monitor the processes that provide count data. The economic objective of this chart is to minimize the cost of its errors which is determined by the designer. This objective is a linear function of type I and II errors. …
Strategies To Improve The Efficiency Of Emergency Medical Service (Ems) Systems Under More Realistic Conditions,
2014
Clemson University
Strategies To Improve The Efficiency Of Emergency Medical Service (Ems) Systems Under More Realistic Conditions, Kanchala Sudtachat
All Dissertations
Emergency medical service (EMS) systems provide medical care to pre-hospital patients who need rapid response and transportation. This dissertation proposes a new realistic approach for EMS systems in two major focuses: multiple unit dispatching and relocation strategies. This work makes recommendations for multiple-unit dispatch to multiple call priorities based on simulation optimization and heuristics. The objective is to maximize the expected survival rate. Simulation models are proposed to determine the optimization. A heuristic algorithm is developed for large-scale problems. Numerical results show that dispatching while considering call priorities, rather than always dispatching the closest medical units, could improve the effectiveness …
Detailed Inventory Record Inaccuracy Analysis,
2014
University of Arkansas, Fayetteville
Detailed Inventory Record Inaccuracy Analysis, Hayrettin Kaan Okyay
Graduate Theses and Dissertations
This dissertation performs a methodical analysis to understand the behavior of inventory record inaccuracy (IRI) when it is influenced by demand, supply and lead time uncertainty in both online and offline retail environment separately. Additionally, this study identifies the susceptibility of the inventory systems towards IRI due to conventional perfect data visibility assumptions. Two different alternatives for such methods are presented and analyzed; the IRI resistance and the error control methods. The discussed methods effectively countered various aspects of IRI; the IRI resistance method performs better on stock-out and lost sales, whereas error control method keeps lower inventory. Furthermore, this …
Monitoring Hospital Safety Climate Using Control Charts Of Non-Harm Events In Reporting Systems,
2014
Clemson University
Monitoring Hospital Safety Climate Using Control Charts Of Non-Harm Events In Reporting Systems, Susan Robinson
All Theses
The primary aim of this thesis is to design an approach and demonstrate a methodology to supplement safety culture assessment efforts. The framework affords an enhanced understanding of hospital safety climate, specifically reporting culture, through the use of control charts to monitor non-harm patient safety events documented in reporting systems. Assessing safety culture and climate remains difficult. One of the most common methods to assess safety culture is a self-report survey administered annually. Surveys assess safety climate, because they are a snapshot of the management's and front-line staff's perceptions of safety within their settings. One component of safety culture is …
Compressed Air Leak Study,
2014
Western Michigan University
Compressed Air Leak Study, Colin Knue, Suresh Kumar Baskaran
Research and Creative Activities Poster Day
Today compressed air plays very important role as part of expense. A huge chunk of expenditure can be saved as such. Effort in terms of monetary and energy will be a waste if even fraction of the compressed air is lost because of leak in the system without making the best use of it. There are leak detection and repair systems that can be adapted to overcome such wastage of compressed air. In this project, a procedure using ultrasonic leak detector to identify, locate and repair leaks is adapted. The summary of controlling already existing leaks and preventing more new …
Systems Simulation Analysis Of A Hospital Rapid Response System,
2014
Western Michigan University
Systems Simulation Analysis Of A Hospital Rapid Response System, Shoruk Mansour
Research and Creative Activities Poster Day
The poster presents a systems simulation analysis of a hospital rapid response system. Analysis of interventions and future work related to the project are included.
Ergonomics Study Led Lighting Assembly,
2014
Western Michigan University
Ergonomics Study Led Lighting Assembly, Marylin Glass-Angeles, Nathan Christensen, Josef Imesh, Lorena Peña, Natalia Matos
Research and Creative Activities Poster Day
The current assembly process of the LED Lighting product line at Landscape Forms (LF) combines high force exertion, motion repetition and an uncomfortable posture. Therefore, Industrial Engineers overseeing the manufacturing of these products raised a concern for their workers health and were interested in identifying injury risks related to the current methodology as well as opportunities for the reduction of such risks.
The Green Manufacturing Industrial Consortium’S (Gmic) Approach To Zero-Waste-To-Landfill (Zwtl),
2014
Western Michigan University
The Green Manufacturing Industrial Consortium’S (Gmic) Approach To Zero-Waste-To-Landfill (Zwtl), Nathan J. Christensen, Marylin Glass-Angeles
Research and Creative Activities Poster Day
Introduction: As organizations continually seek to reduce various forms of waste, some may seek to reduce their landfill impact and improve recycling and material disposal practices. Many organizations interested in reducing their landfill waste have embarked on a zero-waste-to-landfill (ZWTL) journey. This journey involves thoroughly exploring the landfill waste of an organization, reverse tracking the waste to its source, and establishing new practices and procedures for eliminating the source of waste from the landfill stream. The purpose of this poster is to describe the methodology used by the Green Manufacturing Initiative to assist companies on their ZWTL journey.
Veneer Defect Data Collection & Analysis,
2014
Western Michigan University
Veneer Defect Data Collection & Analysis, Marylin Glass-Angeles, Josef Imesh, Nathan Christensen, Nathan Bowen, Zachary Miller
Research and Creative Activities Poster Day
Objectives: This project is Phase I of a two part study with the purpose of aiding Steelcase in reducing defects occurring in the sanding step of the wood manufacturing process. During Phase I, the team collected data and used the results to identify the greatest material and profit losses. The continuing goal of the study will be to address these issues to the greatest extent possible.
