Browsing Auburn Theses and Dissertations by Department "Industrial and Systems Engineering"
Now showing items 141-160 of 183
Real Options Evaluation of Financial Investment in Flexible Manufacturing Systems in the Automotive Industry
(2008-05-15)
Applying financial option pricing theory to real world investment evaluation practice, real option analysis is quickly emerging as a new approach to economic evaluation and selection of strategic investment alternatives ...
Reliability Modeling of Microelectronic Interconnections in Long-term Applications
(2019-10-17)
Solder alloy materials are used to form mechanical and electrical connections between printed circuit boards and electronic components. Enhancing the reliability of electronic assemblies is mostly dependent on the reliability ...
Reliability of Aging in Microstructures for Sn-Ag-Cu Solder Joints with Different Surface Finishes during Thermal Cycling
(2016-05-06)
A direct and deleterious effect on packaging reliability has been observed during elevated temperature isothermal aging for fine-pitch ball grid array (BGA) packages with Sn-1.0Ag-0.5Cu (SAC105) and Sn-3.0Ag-0.5Cu (SAC305) ...
Reliability of Doped SnAgCu Solder Alloys with Various Surface Finishes Under Realistic Service Conditions
(2019-04-24)
The electronic packaging industry has moved from eutectic Sn-Pb solder materials to near-eutectic SnAgCu (SAC) solder materials in the past decade because of the increasing awareness of health and safety concerns associated ...
Reliability of Lead-Free Electronic Package Interconnections under Harsh Environment
(2014-07-24)
Lead-free solder alloy has evolved and applied in industries for many years. The reliability is of concern for lead-free solder joints of assembled circuitry, especially those exposed to high temperature in a long period ...
Reliability of Solder Attachment Options with Lead Free for 0.4 mm Micro BGA Packages
(2011-05-16)
Electronic Modules have become an integral part in Automobiles. User friendly applications in Automobiles require high reliable electronic components to perform in harsh temperature ranges of -40 C to 165 C. Micro-electronic ...
Reliability/Availability of Manufacturing cells and Transfer Lines
(2011-05-04)
One of the major wastes in a manufacturing system is downtime caused by machine breakdown/failure and the time and cost incurred to repair the failed machine. Machine breakdown leads to stoppage of production in manufacturing ...
Retail Spatial Design with a Racetrack Aisle Network Considering Revenue and Adjacencies
(2008-12-15)
In this dissertation, a novel model for the retail store design problem is proposed. The new approach consists of placing departments in a racetrack configuration within the store subject to area and shape constraints. ...
Revisiting the OSHA Hand Speed Constant
(2017-11-30)
This research focused on after-reach and over-reach in automated systems. OSHA uses a hand speed constant developed in 1935 (1.6 m/s) to calculate the “safe distance” on dual palm buttons and presence sensing devices. The ...
Seat Belt Safety in Rollover Accidents: Investigating Buckle Release Force and its Impact on Occupant Protection
(2023-05-02)
Seat belts have been a crucial safety feature in vehicles for over a century. They undoubtedly remain the most effective safety device in a vehicle for reducing both fatal and nonfatal injuries resulting from motor vehicle ...
Sensitivity Analysis of Subjective Ergonomic Assessment Tools: Impact of Input Information Accuracy on Output (Final Scores) Generation
(2006-05-15)
Subjective ergonomic assessment tools are widely used by practitioners to detect existing or potentially hazardous conditions. Their output scores are used to design, implement, and evaluate measurements and controls in ...
Simulation and Digital Twin: Contrasting the Capabilities and Bridging the Gap
(2023-08-02)
Driven by the advancements related to Industry 4.0, Digital Twin (DT), usually described as a virtual representation of a physical product or system connected with bi-directional data, has been a topic of increasing interest ...
Simulation Modeling and Analysis of Printed Circuit Board Assembly Lines
(2005-12-15)
This thesis focuses on simulation modeling and analysis of printed circuit board assembly lines. The objectives of the study include assessing the feasibility of process flow logic and relative impact of changing line ...
A Simulation Study to Improve Customer Waiting Time in Concessions at Jordan-Hare Stadium
(2019-11-13)
Attendance of college football, as well as other live events, has been dwindling for years. To enhance the fan experience, many stadiums have been investing on renovations such as installing larger screens, and building ...
SMT Line Improvements for High Mix, Low Volume Electronics Manufacturing
(2011-06-03)
This work covers two major projects aimed at increasing quality and efficiency on a high mix, low volume surface mount electronics production line. Specifically the installation of a ten zone reflow oven and an enhanced ...
Solving Scheduling Deteriorating Jobs with Rate Modifying Activity
(2011-03-08)
Traditional scheduling problems assume that the processing time of a given job is always fixed. However, the processing times may change in real industrial applicants. To reflect the real world, we use two new phenomenons ...
The Space Allocation Problem for Temporary Displays in Supermarkets
(2024-06-12)
In this research, a novel approach to the shelf-space allocation problem of product categories to temporary displays in a supermarket is proposed. The main store aisles display similar products, which are categorized and ...
Staff Scheduling in Service Systems with Non-Stationary Arrival Processes
(2021-12-05)
There are significant issues that cause customers’ dissatisfaction with service systems.
One of the most critical frustrations deals with the unpredictable waiting time in the queue
before getting service. This issue is ...
Statistical and Visual Analysis of Solder Joint Reliability in extreme Environments
(2019-04-26)
Over the last several decades, surface mount technology has advanced and become the most profitable industry worldwide. Cell phones or some type of hand held technology have become prominent throughout multiple age groups. ...
Strategic Investment Decisions for Product Development Projects - An Option-Game Approach
(2015-04-08)
Gate-criteria have been identified as critical drivers of the success of a new product development (NPD) process. However, a major weakness of NPD projects is that gate-criteria are often inadequate for making go/kill ...