Engineering Commons^™

A Taxonomy Of Scheduling Problems In Semiconductor Device Test Operations, Tali Freed, Robert C. Leachman, Kenneth H. Doerr

Industrial and Manufacturing Engineering

Semiconductor device test facilities differ not only by production volume and tester brands. The complexity of the devices and the characteristics of the testers affect the scheduling methodologies as well. Goals and strategies vary from one firm to another, leading to a variety of objectives and performance measures. Due to random yield lot size is variable and lot priorities are common. Changeover times are oftentimes sequence-dependent. Since semiconductor device testing systems are very costly, scheduling methods that increase the throughput of the facility are financially significant. In this paper we describe a variety of semiconductor device testing environments, develop mathematical …

Santa Clara Magazine, Volume 43 Number 4, Spring 2002, Santa Clara University

Santa Clara Magazine

3 - BIG GIFT FOR BUSINESS SCHOOL BUILDING By SCM Staff. Silicon Valley investor Don Lucas donates $15 million to the Leavey School of Business.

8 - REACHING THE GOAL By Barry Holtzclaw. The women's soccer program has steadily become a national power.

16 - THE ART OF ADMISSION By John Kovacevich. The admissions office shapes the classes of the future by seeking a mix of diversity, creativity, and promise .

Establishing A Lan Network For Designing And Analyzing Of Manufacturing Products, Yuqiu You

Morehead State Theses and Dissertations

A thesis presented to the faculty of the College of Science & Technology at Morehead State University in partial fulfillment of the requirements for the Degree of Master of Science by Yuqiu You in Spring of 2002.

Range Estimation Is Np-Hard For Epsilon-Square Accuracy And Feasible For Epsilon To The Power Of 2-Delta, Vladik Kreinovich

Departmental Technical Reports (CS)

The basic problem of interval computations is: given a function f(x1,...,xn) and n intervals [xi-,xi+], find the (interval) range Y of the given function on the given intervals. It is known that even for quadratic polynomials f(x1,...,xn), this problem is NP-hard. In this paper, following the advice of A. Neumaier, we analyze the complexity of asymptotic range estimation, when the bound "epsilon" on the width of the input intervals tends to 0. We show that for small c>0, if we want to compute the range with an accuracy c times epsilon squared, then the problem is still NP-hard; on …

The Airline Quality Rating 2002, Brent D. Bowen, Dean Headley, Uno Aviation Institute

Faculty Books and Monographs

UNOAI Report 02-2

The Airline Quality Rating (AQR) was developed and first announced in early 1991 as an objective method of comparing airline quality on combined multiple performance criteria. This current report, Airline Quality Rating 2002, reflects monthly Airline Quality Rating scores for 2001. AQR scores for the calendar year 2001 are based on 15 elements that focus on airline performance areas important to air travel consumers.

The Airline Quality Rating 2002 is a summary of month-by-month quality ratings for the 11 largest U.S. airlines operating during 2001. Using the Airline Quality Rating system of weighted averages and monthly performance …

30th Conference On Senior Engineering Design Projects, College Of Engineering And Applied Sciences

Senior Engineering Design Conference

The 30th Conference on Senior Engineering Design Projects was held on April 16, 2002 at the College of Engineering and applied Sciences on the Parkview Campus of Western Michigan University. The college sponsors the conference to showcase the work of its graduating seniors, who are required to complete a capstone project that puts into practice what they have learned. Many of the projects are sponsored by business and industry.

Fisheries Management Report No. 6 - Proceedings Of Marron Farming Open Day 2002, Greg B. Maguire

Fisheries Published Reports

The marron industry is of considerable importance to the Department of Fisheries, being one of the older aquaculture industries in Western Australia, and one that accounts for around half the aquaculture licence holders in the State. While it has not grown as quickly as many hoped in the past, in 2000/01, some 52.2 tonnes of marron were produced, worth $1.18 million at the farm gate.

It is regionally significant, particularly in the south-west, and depending on appropriate site selection, has considerable potential in other areas. Farms are distributed from near Geraldton to around Bremer Bay, with additional interest around Esperance. …

Course Notes: Engineering Entrepreneurship, Paul Savory

Department of Industrial and Management Systems Engineering: Instructional Materials

This special-topic class will focus on starting and managing a successful business. Topics will include: marketing, finance, human resources, operations, legal issues, initial public offering, and succession and estate planning. Due to the engineering background of the students, special emphasis will be on exploring the legal issues involved in the process of applying for a patent. The course will enable a student to evaluate his or her own desires and prospects for a career as an entrepreneur. In so doing, it will provide the aspiring entrepreneur with a framework for selecting, funding, and starting his or her own business. While …

Comparative Performance Of Rubberized Hot Mix Asphalt Under Alf Loading, Hanlin Qin

Doctoral Dissertations

In response to the Intermodal Surface Transportation Efficiency Act (ISTEA) of 1991, Louisiana constructed five projects to evaluate several methods of using discarded tire rubber in highway pavements. The field performance was quite variable. To achieve the agreement among state agencies on the engineering benefits of using crumb rubber modifier (CRM) in HMA pavement and to define the circumstances where the LaDOTD can use asphalt rubber materials in the most cost effective way, a full-scale research program has been conducted at the Louisiana Transportation Research Center (LTRC) to evaluate the performance of CRM-HMA asphalt pavement under Accelerated Loading Facilities (ALF). …

Computing Variance For Interval Data Is Np-Hard, Scott Ferson, Lev Ginzburg, Vladik Kreinovich, Luc Longpre, Monica Aviles

Departmental Technical Reports (CS)

When we have only interval ranges [xi-,xi+] of sample values x1,...,xn, what is the interval [V-,V+] of possible values for the variance V of these values? We prove that the problem of computing the upper bound V+ is NP-hard. We provide a feasible (quadratic time) algorithm for computing the lower bound V- on the variance of interval data. We also provide a feasible algorithm that computes V+ under reasonable easily verifiable conditions.

Behavior Of Nano-Engineered Platelets In A Coronary Artery Stenosis Model, Hua Ai

Doctoral Dissertations

Cardiovascular disease is the leading cause of death in North America. Cardiac infarction caused by thrombus plaque rupture can often lead to sudden death. Arterial stenosis caused by atherosclerosis is an important precursor leading to thrombus formation. Shear stress, abnormal lipid metabolism, and subendothelial layer exposure are the major contributors to arterial thrombus formation. Platelet activation by the above factors, followed by adhesion is the basic sequence in thrombus formation.

Platelets were encapsulated with nanofilm in order to reduce platelet activation and adhesion under high shear stress. Polyions, nanoparticles and immunoglobulins were assembled in nano-organized shells on fixed bovine platelets …

Modeling And Experimental Verification Of Growth Of An Axisymmetric Cylindrical Rod By Three-Dimensional Laser-Induced Chemical Vapor Deposition, Qing Chen

Doctoral Dissertations

Three-dimensional laser-induced chemical vapor deposition (3D-LCVD) is a recently developed micro-manufacturing process that holds great potential for the production of complex microstructures with high aspect ratio. A laser beam is focused through a vacuum chamber window onto a movable substrate. The heat from the laser at or near the focal spot on the substrate induces the decomposition reaction of precursor gas in the chamber. As a result, solid-phase reaction products are deposited on the substrate to form the microstructure. In this dissertation, a numerical model is developed for simulating kinetically-limited growth of an axisymmetric cylindrical rod by pre-specifying the surface …

Infopipes: An Abstraction For Multimedia Streaming, Andrew P. Black, Huang Jie, Rainer Koster, Jonathan Walpole, Calton Pu

Computer Science Faculty Publications and Presentations

To simplify the task of building distributed streaming applications, we propose a new abstraction for information flow – Infopipes. Infopipes make information flow primary, not an auxiliary mechanism that is hidden away. Systems are built by connecting predefined component Infopipes such as sources, sinks, buffers, filters, broadcasting pipes, and multiplexing pipes. The goal of Infopipes is not to hide communication, like an RPC system, but to reify it: to represent communication explicitly as objects that the program can interrogate and manipulate. Moreover, these objects represent communication in application-level terms, not in terms of network or process implementation.

Spectral Analysis Of Transition Metal-Doped Mgo “Matched Emitters” For Thermophotovoltaic Energy Conversion, Lucian G. Ferguson, Fatih Dogan

Materials Science and Engineering Faculty Research & Creative Works

A new, thermally excited Co/Ni-doped MgO ceramic emitter for TPV energy conversion is described in this work and termed the “matched emitter” because its emissive power spectrum is very efficiently matched with the portion of the electromagnetic spectrum that can be converted directly into electrical energy by infrared responding GaSb photovoltaic cells. Ligand Field Theory calculations are used to estimate the crystal field splitting energies at high temperatures for Co and Ni-doped MgO matched emitters. Experimental measurements of the high temperature (1300–1400◦C) emissive power spectrums for Co and Ni-doped MgO emitters are compared with predictions obtained from ligand field calculations …

Rheology Of Silica Based Inkjet Coatings And Their Filterability, Peeyush Tripathi

Masters Theses

Coating rheology has long been understood to be a key factor in the smooth operation and performance of a coater. As coaters run faster and formulations become more complex, the demands on a coating's rheology grow more stringent.

Silica based coating formulations present unique rheological challenges, thus providing the opportunity for coating formulators to improve their performance through rheological studies under various conditions of shear. Due to rheological restrictions (gelling), silica based coatings are generally applied at 25-26% solids which is very low as compared to calcium carbonate or clay based coating, at 68-70% solids. Consequently, any improvement in coatings …

Self-Drilling Screw Connections Subject To Combined Shear And Tension, Katherine Zwick, Roger A. Laboube

American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)

No abstract provided.

Perception Of Competence In Male And Female Pilots: Between Group Differences, Marianne Paulsen

Master's Theses - Daytona Beach

This study investigated the relationship between gender and competence as perceived by pilots. Scenarios were utilized that depicted an airline captain successfully landing an airplane amidst adverse conditions. Scenarios varied only by the gender of the Captain: male, female, or unspecified by variance of pilot name. Perceived effectiveness, competence, avoidance, blame, and attribution as depicted by the Captain's performance in the scenario were assessed by 30 male and 30 female certified flight instructors. Results showed that female flight instructors' ratings of avoidance ability and attribution for success differed from male flight instructors. Attribution for blame differences between scenario conditions was …

Mobile Business As Strategic Tools In The Us Airline Industry, Marzel Stratmann

Master's Theses - Daytona Beach

This thesis analyzes opportunities and threats of mobile business in the context of the US airline industry as a strategic tool to create a sustainable competitive advantage through the implementation of an effective mobile business model. The analysis is based on the assumption that mobile airline strategies have to create a strategic fit with the business environment seen from an airline perspective. Forces inherent in the global environment as well as in the micro-environment are analyzed using environmental scanning as systematic technique. Exploratory data obtained from a focus group interview is added to the analysis in order to assess opportunities …

Course On Engineering Entrepreneurship, Paul Savory

Department of Industrial and Management Systems Engineering: Instructional Materials

This is the syllabus and course note packet for students in my Engineering Entrepreneurship course. This special-topic class focuses on starting and managing a successful business. Topics will include: marketing, finance, human resources, operations, legal issues, initial public offering, and succession and estate planning. Due to the engineering background of the students, special emphasis will be on exploring the legal issues involved in the process of applying for a patent. The course will enable a student to evaluate his or her own desires and prospects for a career as an entrepreneur. In so doing, it will provide the aspiring entrepreneur …

Rehabilitation Of Rectangular Simply Supported Rc Beams With Shear Deficiencies Using Cfrp Composites, Ahmed Khalifa, Antonio Nanni

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

The present study examines the shear performance and modes of failure of rectangular simply supported reinforced concrete (RC) beams designed with shear deficiencies. These members were strengthened with externally bonded carbon fiber reinforced polymer (CFRP) sheets and evaluated in the laboratory. The experimental program consisted of twelve full-scale RC beams tested to fail in shear. The variables investigated within this program included steel stirrups, and the shear span-to-effective depth ratio, as well as amount and distribution of CFRP. The experimental results indicated that the contribution of externally bonded CFRP to the shear capacity was significant. The shear capacity was also …

Air Quality Impact Evaluation Of A Hypothetical Fire-Fighter Training Facility, William Glenn Fuller

Doctoral Dissertations

Human Health Risk Assessments (HHRAs) have become a required component in the permitting process for hazardous waste incinerators and boilers and for closure or evaluation of chemical and petroleum facilities. However, although not currently required, these evaluations are also essential for additional daily processes having the potential to adversely impact the environment. One such process includes emissions produced from a firefighter training facility. Firefighter training facilities perform scenarios to enhance the firefighting ability of the trainees. Three typical scenarios conducted at such a facility include air rescue and firefighting, building fire simulation, and propane system fires. During the course of …

A New Long -Term Design Model For Rehabilitation Pipe Liners, Shanyun Wang

Doctoral Dissertations

Thin-walled plastic pipe liners are routinely used to rehabilitate structurally sound host pipes that have lost their hydraulic integrity. Such liners are often installed below the water table and are consequently subjected to external hydrostatic pressure which may lead to creep-induced radial deflections and eventual collapse of the liner within the host pipe. Most of the current liner design model is based on the extension of short-term model to a long-term buckling liner design method. The objective of this thesis is to examine and provide a correction factor C* to allow short-term liner buckling models to be more accurately used …

Flight Physician - April, 2002, Civil Aviation Medical Association

Browse all Civil Aviation Medical Association Newsletters

A sixteen page newsletter of the Civil Aviation Medical Association. The newsletter provided news about civil aviation medicine and information related to the organization.

Synthesis Of Pmma-Ceramics Nanocomposites By Spray Process, X.-D. Zhou, H. C. Gu

Materials Science and Engineering Faculty Research & Creative Works

PMMA-ceramics nanocomposites particles were synthesized by a spray process. PMMA-ZnO compositions showed a higher homogeneous than PMMA-SiO₂. The surface of PMMA-SiO₂ composites was SiO₂ rich. Donut shape particles were formed at high gas flow rate, which was due to the competition between surface tension and dragging force. The Zeta potential dramatically changed in PMMA-ZnO composites whereas there was a slight change in PMMA-SiO₂ system.

Cfd Of Multiphase Flow In Packed-Bed Reactors: Ii. Results And Applications, Y. Jiang, M. R. Khadilkar, M. (Muthanna) H. Al-Dahhan, M. P. Dudukovic

Chemical and Biochemical Engineering Faculty Research & Creative Works

Numerical Simulations of Multiphase Flow using the K-Fluid CFD Model Described in Part I of This Issue Are Presented for Packed Beds at Various Operating Conditions. Both Steady-State and Unsteady-State (E.g., Periodic Operation) Feed Conditions Were Studied Numerically. Predictions of the K-Fluid CFD Model Are Comparable with the Experimental Data in the Literature for Liquid Upflow in a Cylindrical Packed Bed. in Addition to the Mean Porosity and the Longitudinally Averaged Radial Porosity Profile, the Variance of the Porosity Distribution is Needed for Predicting the Probability Density Function of the Sectional Flow Velocity. in the Trickling Flow Regime, the K-Fluid …

Cfd Of Multiphase Flow In Packed-Bed Reactors: I. K-Fluid Modeling Issues, Y. Jiang, M. R. Khadilkar, M. (Muthanna) H. Al-Dahhan, M. P. Dudukovic

Chemical and Biochemical Engineering Faculty Research & Creative Works

The Eulerian K-Fluid CFD Model Was Used to Simulate the Macroscale Multiphase Flow in Packed Beds. the Geometric Complexity of the Bed Structure is Resolved by Statistically Describing the Porosity Distribution. the Complicated Multiphase Interactions Are Computed using the Ergun Type of Formula Developed based on Bench-Scale Hydrodynamic Experiments. the Work is Presented in Two Sequential Articles. Part I Discusses Implementation Issues of the K-Fluid CFD Model for Packed Beds. the Drag Exchange Coefficients Are Obtained from the Model of Holub Et Al. for the Particle-Fluid Interfaces Xks and from the Model of Attou Et Al. (1999) for the Gas …

Multi-Probe Conductivity Method For Monitoring Time-Dependent Processes In Fresh Cementitious And Other Dense Slurry Systems, Pavate V. Trimbak, Kamal Khayat, Carmel Jolicoeur

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

The invention provides a novel probe comprising multiple conductivity electrodes, which can be used to monitor various types of time-dependent processes in aqueous suspension, slurries, pastes, etc. for example, fresh cementitious materials, such as grouts, mortars and concrete. The processes which can be monitored as function of time through this novel method can be either "physical" or "chemical"; physical-type processes comprise settling, sedimentation, segregation, water migration, surface bleeding, channelling, etc.; chemical-type processes comprise dissolution or precipitation of solids, and any reactions involving the solution and solid phases present in the slurry.

Evaluation Of The Dayton Its Demonstration Project, Jason Yaw, Kavita Boddu, Nikiforos Stamatiadis

Kentucky Transportation Center Research Report

This is the second and final report of the Dayton ITS Demonstration Project, which evaluates the effectiveness of Advanced Traveler Information System (ATIS) devices located in the vicinity of the Nutter Center (Figure 1), Dayton, Ohio. The intention of these devices is to provide real-time information to travelers accessing the Nutter Center during special events. The first report documented the existing conditions (1999) and defined various measures of effectiveness used to evaluate the traffic conditions. The ATIS devices were installed in the meantime. To complete the evaluation of the demonstration project, this report evaluates the performance of the road network …

Enterprise Resource Planning, Ted Grossardt, Joel Brumm

Kentucky Transportation Center Research Report

This goal of this project was to assist the Cabinet in improving the way data is gathered, maintained, and used in the Highway Information System (HIS). The procedure was to identify the critical uses of various data categories, the specific needs for that data, and how that matched up with how the data is handled currently. The end result is a database of metadata information about the HIS database itself. This will enable new users and those unfamiliar with the background of the HIS to easily locate information about how data was collected, how frequently it is updated, and the …

A Formal Object Model For Layered Networks To Support Verification And Simulation, Rasha M. B. E. Morsi

Electrical & Computer Engineering Theses & Dissertations

This work presents an abstract formal model of the interconnection structure of the Open Systems Interconnection Reference Model (OSI-RM) developed using Object-Oriented modeling principles permitting it to serve as a re-usable platform in supporting the development of simulations and formal methods applied to layered network protocols. A simulation of the object model using MODSIM III was developed and Prototype Verification System (PVS) was used to show the applicability of the object model to formal methods by formally specifying and verifying a Global Systems for Mobile communications (GSM) protocol. This application has proved to be successful in two aspects. The first …