Other Operations Research, Systems Engineering and Industrial Engineering Commons^™

Achieving Ultrafine Grains In Mg Az31b-O Alloy By Cryogenic Friction Stir Processing And Machining, Anwaruddin Mohammed

Theses and Dissertations--Manufacturing Systems Engineering

This thesis presents results from the application of cryogenic cooling on multiple-pass friction stir processing and the subsequent orthogonal machining on friction stir processed and as-received Mg AZ31B-O disks, and shows their combined effects on microstructure and microhardness values. A simple friction stir tool, a specially designed fixture and liquid nitrogen are used to perform multiple-pass friction stir processing experiments on Mg AZ31B-O alloy. The friction stir processed and as-received sheets are then made into disks for the orthogonal machining experiments. This study analyzes the microhardness, microstructure changes by cryogenic friction stir processing and the effect of machining conditions such …

The Impact Of 3pl’S Green Initiatives On The Purchasing Of Transport And Logistics Services: An Exploratory Study, Pietro Evangelista, Maria Huge-Brodin, Karin Isaksson, Edward Sweeney

Conference papers

There is a lack of research investigating the interaction and reciprocal influences between the buyer perspective and the supplier of transport and logistics services. Studies on the buyer perspective analyse the selection criteria to buy 3PL services, while research focused on green 3PL services examine initiatives undertaken by these companies to provide more environmentally sustainable services. The objective of this paper is to fill this void through an explorative case study analysis on the environmental attitude of 3PL companies in order to derive relevant implications for buyer’s behaviour. The results provide useful guidelines to buyers for understanding awareness, initiatives as …

Toward A Technology Management Core: Defining What The Technology Manager Needs To Know, Mark Doggett, Pam Mcgee, Sophia Scott

SEAS Faculty Publications

With the increasing demands on organizations to do “more with less,” and produce acceptable market results, productivity and performance standards continually raise the expectations on competitive success. To meet these expectations, organizations should create learning opportunities that combine the application of technical management skills along with the softer skills involved in people management. Technical managers with little training or past experience with nontechnical skills often perform poorly in technical management positions (Kroecker, 2007). Because this generation lives in a highly technical environment, managers need to be proficient in dealing with knowledge workers and systems; therefore, there is a growing emphasis …

Virtual Ed: Utilisation Of A Discrete Event Simulation-Based Framework In Identifying "Real-Time’ Strategies To Improve Patient Experience Times In An Emergency Department, Waleed Abo Hamad, John Mcinerney, Amr Arisha

Articles

Objectives and Backgrounds Emergency Department (ED) overcrowding and associated excessive Patient Experience Times (PETs) have proven deleterious impacts on patient mortality, morbidity and overall length of hospital stay. Health systems constantly seek cost-effective organisational strategies to reduce ED crowding and improve patient outcomes, but complex change implementation is constrained by the necessity of maintaining concurrent safe patient-care. Computer modelling in a “virtual reality” has been successfully utilised in industries outside medicine, in providing innovative “real-time” solutions to outdated practices. Therefore a bespoke “Virtual ED” computer model, based on a Discrete Event Simulation (DES) -Based Framework was constructed to determine the …

The Effects Of Anti-Price Gouging Legislation On Supply Chain Dynamics, Jason Edward Maynard

Master's Theses

The purpose of this thesis is to model the effects of anti-price gouging (APG) legislation on the costs to businesses during the recovery period of a disaster. A system dynamics model of a business’s replenishment procedures is used to simulate the effects of APG legislation on business performance. Economists have published expansive research on the effects of price ceilings on supply and demand, but there is little research evidence on the operational consequences of price ceiling legislation on business costs. APG legislation increases consumer’s forward buying and shortage gaming after a disaster by removing price incentives to be frugal. Forward …

A Space Acquisition Leading Indicator Based On System Interoperation Maturity, Jason T. Shibata

Theses and Dissertations

The Department of Defense‘s space acquisition enterprise has experienced numerous challenges since the advent of space power. Space borne capabilities are needed more than ever, but space acquisition frequently fails to meet its goals. The decades of space acquisition experience form a rich history that can be used to build a leading indicator of success to enable effective program execution. First, the space acquisition areas of greatest concern were determined to be cost, schedule and requirements. These areas are considered as systems composed of the people, processes and products that execute the program. Second, the vital interoperation characteristics, or attributes …

Conceptual Design And Analysis Of Service Oriented Architecture (Soa) For Command And Control Of Space Assets, Eric B. Snyder

Theses and Dissertations

The mission-unique model that has dominated the DoD satellite Command and Control community is costly and inefficient. It requires repeatedly “reinventing” established common C2 components for each program, unnecessarily inflating budgets and delivery schedules. The effective utilization of standards is scarce, and proprietary, non-open solutions are commonplace. IT professionals have trumpeted Service Oriented Architectures (SOAs) as the solution to large enterprise situations where multiple, functionally redundant but non-compatible information systems create large recurring development, test, maintenance, and tech refresh costs. This thesis describes the current state of Service Oriented Architectures as related to satellite operations and presents a functional analysis …

Integrating Balanced Scorecard And Simulation Modelling To Improve Emergency Department Performance In Irish Hospitals, Amr Arisha, Waleed Abo-Hamad, Khaled Ismail

Conference papers

In the healthcare sector, there is a requirement for innovative solutions in managing the high levels of complexity and uncertainty within Emergency Departments (EDs). Simulation modeling is currently seen as a competent means of analyzing EDs, which allows changes effects to be understood and predicted more easily. The Balanced Scorecard (BSC), well-known performance management concept, has become a steering method in approaching new improvement cycles. This paper presents a methodology that integrates BSC and simulation modeling to improve the performance of ED in a University Hospital in North Dublin. BSC design began with understanding patient's needs, ED activities, as well …

Pull Production System Training Guide, Adem Bilgutay

Industrial and Manufacturing Engineering

This book is a series of lessons designed to train operators and managers in pull manufacturing. It begins with a description of the different forms of waste that a system can help to identify and eliminate. The second section details the kanban as a system for controlling flow and as a powerful tool for identifying problems. It will describe the many different variations of kanban that exist to control flow in different production environments and the calculations that allow them to be used effectively. The final section will detail the activities that an operator should engage in when there is …

Expansion In Existing And Future Franchises, Shane Hart, Daniel Jeng

Industrial and Manufacturing Engineering

Zensho Group has recently acquired the restaurant US based chains CoCo’s and Carrows but has not been able to affirm the same growth as the company has established in its home country of Japan. In order to fulfill their need to grow, extensive market analysis and research needs to be done. An expansion eastward and the introduction of their flagship restaurant chain, Sukiya, would offer growth potential. Determining the best locations for these new stores is the goal of this project. Low cost and high market penetration potential will be used to recommend the ideal locations that will benefit the …

Combining Mobile Technologies For Accurate, Open Source, Privacy Sensitive, Zero Cost, Location Determination, Seamus Rooney

Doctoral

Determining the location of an object or individual using a mobile device (e.g. cell phone) is an important aspect of modern information gathering. Various solutions have been proposed which all have their strengths and weaknesses. To date, no solution has been devised for a mobile device that will work effectively in multiple environments and without assistance from network-provider connections1. To address this, it is argued that the current state of the art can be advanced using a hybrid approach that combines a number of sensor technologies to provide a more reliable, and accurate mobile location determination that functions in multiple …

Customer Management Analysis Of Irish Plumbing & Heating Distribution System: A Simulation Study, Amr Arisha, Amr Mahfouz, John Crowe, Finbarr Bennett

Conference papers

The sudden burst of the property bubble, coupled with current global economic conditions has resulted in a huge decrease in demand for plumbing and heating fixtures in the Irish construction industry. Moreover, inefficient supply chain management policies have imposed further pressures on companies resulting in more system bottlenecks and unnecessary costs. Inventory management is seen as a functional area that can ease such bottlenecks and in turn increase supply chain efficiency, decrease costs and increase customer satisfaction. The challenge is to predict the balance of on-hand inventory and order quantity to optimise customer satisfaction and minimise inventory cost. It is …

Lean Inventory Management System For Boeing Missile Defense, Danielle Partridge

Industrial and Manufacturing Engineering

Lean inventory management is influential for business. One of the wastes businesses aim to reduce, using lean principles, is inventory. Inventory management provides the essential tools for eliminating extra inventory and cost that is tied up in capital.

Boeing’s Ground Based Missile Defense inventory area was failing at meeting their proprietary lean manufacturing goals. There was a need for an inventory system that included: lean principles, inventory management and user-friendly capability. The goal of this project’s inventory management database process was to minimize inventory investment while still meeting functional requirements. The deliverables for this project met the needs of Boeing’s …

Increasing Production Capacity At A Start Up Biomedical Company, Traci J. Otsuji

Industrial and Manufacturing Engineering

The following senior project was first introduced during a summer internship at a biomedical company called Asthmatx Inc. Asthmatx is responsible for the development and manufacturing of a catheter‐based device for moderate to severe cases of asthma. Upon the approval of FDA, Asthmatx had planned to ramp up their production capacity significantly in order to accommodate the potential growth.

The first step in the process improvement was a facility reconfiguration that involved the adjustment of process sequencing and the implementation of ergonomic catheter channels. Next, time studies were conducted to gain more accurate time standards of the production process. After …

Process Improvement For The Department Of Surgery Sierra Vista Medical Center, Jessica Paz

Industrial and Manufacturing Engineering

This report proposes and analyzes process improvement methods for the Surgical Services Department at Sierra Vista Regional Medical Center. The department currently operates with an average of 25% of elective cases starting on time. This can be attributed to a number of inefficiencies that occur throughout the hospital.

The following Industrial Engineering methods were utilized to improve patient flow:  creation of a data collection system to quantify delays  use of simulation and facility redesign techniques to determine feasibility and benefits of moving towards a surgical center model  development of a user interfaced database to record and analyze …

Police Operations Simulation, Robert Mcgee

Industrial and Manufacturing Engineering

In this report, the author explains the process of creating the Police Operations Simulation, shows step-by-step how it works, and statistically analyzes the results from SLOPD’s own proposed and current schedules. The data-gathering from the department and the simulation itself will receive the bulk of the coverage in this report, followed by sample results from SLOPD and a business plan for future sale to other departments.

Using the given numbers, it appears that the proposed schedule will result in significantly improved coverage for the city of San Luis Obispo. While any increase in the number officers on patrol tends to …

Laser Clean Room Re-Design: A Manufacturing Facility Re-Layout, Jennifer J. Siu

Industrial and Manufacturing Engineering

Alcon’s Laser Clean Room fosters inefficient production practices, is outdated for its current process, and lacking in clear process/product flow. A facility re-design is applied to bring order, efficiency, and optimize flow in the laser production lines.

Deliverables include a new layout that decreases product travel distances and increases productivity as well as an implementation plan and cost/savings analysis. Major design decisions include downsizing the clean room, sorting to find waste and establishing clear process/product flows. The design was implemented within three weeks and results yield 29% reduction of product travel distance, 10.4 hrs/day saved from eliminated gowning time and …

Cable Time Estimation Database, Joshua L. Okerman

Industrial and Manufacturing Engineering

The use of time standards are the basis for a high efficiency system in the manufacturing environment. This project will investigate the process followed to design and develop a database used to calculate accurate cable assembly time standards used for scheduling at General Atomics. This project will then justify the use of the Cable Time Estimation Database, through an economic analysis compared to the current methods applied.

Preference Driven University Course Scheduling System, Heather A. Bellardo

Master's Theses

University course planning and scheduling is the process of determining what courses to offer, how many sections are needed, determining the best term to offer each section, assigning a faculty member to instruct each section, and scheduling each section to a timeslot to avoid conflicts. The result of this task has an impact on every student and faculty member in the department. The process is typically broken down into three major phases: course offering planning, faculty assignment to planned course sections, and course scheduling into timeslots.

This thesis looks at each of these phases for the Industrial and Manufacturing department …

Screen Printing Scheduling Methodology, Brandon Wolfe, Kyle Naylor

Graphic Communication

As the shift towards offshore business within the screen printing industry increases, American businesses must find a way to remain competitive. Due to manufacturing costs and regulation it is impossible for Americans to compete with the low per unit cost of foreign suppliers. By decreasing the time to market, American businesses will be able to remain competitive and recover lost business. In order to achieve this, a flexible scheduling model must be developed in order to increase throughput of a production process. This model serves to account for variables and variances that occur within the screen printing process, allowing for …