Collection

2003 GSW

Authors

Jerry K. Keska; Heechan Shin

concurrent flow of air and water in a transparentvertical tube (Fig 2). The tube is 1 meter long, 35 mm in diameter and can be mounted vertically,horizontally, or at an angle. At this moment, the operator in the lab can set up the angle of tubes inneeds. The water is circulated with controlled by airflow intensity during rotameters and pressurelevel delivered by compressor installed in the lab. A web camera is focused on the tube, whichenables the remote operator to view the flow patterns in the tube. The remote operators can set boththe air and water flow rates remotely by using DAQ I/O system via network. The DAQ boards areconnected to several sensors, which are used to measure the flow parameters in the flow tube andsend back the measurement data

Collection

2003 GSW

Authors

Jerry K. Keska

investigators, whose communications support a more effective learning process andgenerate benefits for both.One of the preliminary requirements for successful implementation of these processes is tomake appropriate choices of references used to access such resources as patents, refereedpapers and reports, and electronic databases via the library or the Internet. In the selection ofresources, two key issues are (1) the use of objective and accurate references, and (2) access tostate-of-the-art information. Two of the most important sources of information in this case arerefereed journal papers and patents. Limited subject knowledge on the part of the student, and Proceedings of the 2003 ASEE Gulf-Southwest Annual Conference

Collection

2003 GSW

Authors

Tariq A. Khraishi

ofthe apparatus at work were taken on that day with a portable digital camera and some are shownin this paper. Some of the designs involved a sliding mechanism whereby the golf ball had toslide down a curve or path of some sort to generate linear momentum capable of flying the ballfor a horizontal distance of at least one meter (Figures 1 and 2 are examples). These designsrelied on the fact that potential energy converted to kinetic energy during the downward slide ofthe ball. Other designs involved the use of a push or pull springs to drive the motion of the ballby converting the spring’s potential energy into kinetic energy of the ball (Figure 3 is anexample). One design used torsional and not linear springs (Figure 4). Several other

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2003 GSW

Authors

Akanni Lawal; James M. Gregory; Lloyd Heinze

and tips on how to teach engineers skills ofcommunicating will be presented. IntroductionDr. Bill Wulf, President of the National Academy of Engineering, stated that it is important forengineers to “know how to communicate effectively.”1 Dr. Wulf’s statement indicates the valuethat communications skills add to engineering graduates. While many engineering studentsresist instruction in communications, they, nevertheless, must have communications skills tosucceed in the modern world of engineering.The challenge is to develop a class that makes the education of communication science and thedevelopment of communication skills efficient and interesting. This challenge has been met with

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2003 GSW

Authors

W. Conway Link; Carlos G. Spaht

ofproportionality was determined for each of four different weights, using the formula Y = k X,where Y is the displacement in millimeters, X is the weight in grams, and k is the constant ofproportionality.Spring #1:X (grams) Y (displacement) k (constant of proportionality)1. 50 0.6 0.0122. 150 1.2 0.0083. 250 1.5 0.0064. 500 2.2 0.0044Spring #2:X (grams) Y (displacement) k (constant of proportionality)1. 20 10 0.502. 40

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2003 GSW

Authors

W. Conway Link; Carlos G. Spaht; Rogers Martin

files and other informationthat students may assess at any time from any location.One of the advantages of the Blackboard system is that it makes available to the instructor thetotal number of accesses (“hits”) per area, number of hits over time, user hits by hour of the day,user hits by days of the week, and number of hits by student. For this study, the investigators hadtwo goals: (1) To fit a linear regression model to the data, using the number of Blackboard hits asthe independent variable and the percent of the student’s total possible number of points in thecourse as the dependent variable; and (2) By using the coefficient of determination, the square ofthe correlation coefficient, to determine how well the regression model fits the

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2003 GSW

Authors

Jiecai Luo; Pradeep K. Bhattacharya

AbstractIn the course of microelectronics, Widlar current source amplifiers are very important part of theclass courseware. Specially, in design of BJT Widlar current source amplifiers for the givencurrent and extra resistor, a student must solve a nonlinear equation to get desired current outputand this turns out to be a difficult step in design. In this short paper, a new convergenceguaranteed algorithm to solve the nonlinear equation is developed, some simulation results arealso provided. With this new algorithm, students can easily do their design. 1. IntroductionMicroelectronics is intended as a core course in electronics for undergraduate electrical andcomputer engineering students. A majority of

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2003 GSW

Authors

Pauline Melgoza

, Document Delivery & Information Supply, v.11,No.4, 2001, pp.37-50.2. Blackboard Homepage, URL: http://www.blackboard.com/3. Carver, C.A., Hill, J., Udo, W. 1999, “Emerging Curriculum Issues in Digital Libraries,” Proceedings – Frontiers in Education Conference, San Juan, Puerto Rico, Nov.10-13, 1999, pp.C12-C18.4. Kearley, J.P., Lange, K.S. 2001 “Partners in Emerging Technology: Library Support for Web-Based Course,’ Journal of Library Administration, v.32,No.1/2, 2001, pp.267-280.5. Leckie, G.J., Fullerton, A. 1999 “Information Literarcy in Science and Engineering Undergraduate Education: Faculty Attitudes and Pedagogical Practices,” College & Research Libraries, v.60,No.1, 1999:Jan., pp.9

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2003 GSW

Authors

Kevin M. Nickels; Mahbub Uddin

and exception. If each student is givena small fixed number of exemptions a-priori, however, the administration of deadline extensionsis greatly simplified and conducted fairly.To address these problems, the authors in the Department of Engineering Science at TrinityUniversity adopted a Late and Regraded Homework Policy for several engineering courses. Thepolicy and the list of courses are outlined in Figure 1 and Table 1 respectively.The policies listed in Figure 1 have possible pedagogic benefits. The regrade policy addresses acommon desire of instructors to have students revisit past work to learn from our corrections andfrom their past mistakes5. There may also be indirect benefits by increasing the efficacy ofcoursework subsequent to the

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2003 GSW

Authors

William E. Odom; Edward S. Kolesar

[1]. Unfortunately, theforces produced by electrostatic and magnetostatic actuators tend to be small, and to achievelarge displacements, it is necessary to either apply a large voltage or operate the devices in aresonant mode. On the other hand, piezoelectric and thermal expansion actuators can beconfigured to produce large forces and large displacements. Unfortunately, piezoelectricmaterials are not routinely supported in the fabrication processes offered by commercial MEMSfoundries. As a result, these limitations have focused attention on thermally-actuated devices forgenerating the large forces and displacements frequently required to position and assemblecomplex MEMS [2].This research focuses on improving the design and performance of

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2003 GSW

Authors

Brandon D. Pitt; Tristan J. Tayag; Mendy L. Nelson

configuration, and we have incorporated a feedback controller as shown in Figure 1 tostabilize the interferometer’s mean optical path length difference at quadrature6. The stabilizedinterferometer signal must then be demodulated to determine the vibration amplitude of thetarget.Digital signal processing (DSP) is a useful method of analyzing and manipulating aninterferometer signal. The architecture and instruction set of digital signal processors are optimalfor the high-speed, mathematically intensive calculations involved in demodulation. Theadvantages of DSP include programmability, computational sophistication, flexibility, and low-cost. In this paper, a novel method of demodulating a stabilized interferometer using DSP isdescribed. First, a

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2003 GSW

Authors

Kuldeep S. Rawat; Gholam H. Massiha

can be described using one or more of these components can besimulated in RoboCell.The other system paraphernalias like conveyors; tables, parts feeders, etc. are realisticallysimulated without any further programming. Even commonly used sensors like optical sensors,are entirely simulated within RoboCell. It also provides a 3-D Graphical Display and UserInterface to allow users to observe and interact effectively with the RoboCell simulation.Meanwhile, the whole program can be saved, stopped, repeated and reset easily. Figure 1 showsa typical setup of an educational robot. Proceedings of the 2003 ASEE Gulf-Southwest Annual Conference The University of Texas at Arlington

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2003 GSW

Authors

A. C. Rogers; Amir Karimi

$250 per team design project are typically provided each semester. By useof existing laboratory resources most teams do not require but a small fraction of their allocatedcost. Some teams, however, have been allowed to exceed their $250 allowable budget when suchexpense enhances the operation of any of the sixteen test stations listed in Table 1. For example,the purchase of equipment for data acquisition and control (transducers, DAC boards, andmultiplexer units) and replacement of faulty parts (pumps, valves, etc) needed for the studentsdesign projects involve costs additional to the standard budget for each team. This approach hasnot only enhanced the quality of our students design projects, but has proven to be a costeffective process for

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2003 GSW

Authors

Edward S. Kolesar; Matthew D. Ruff

robust, three-dimensional structures whose components are fabricated as planar entities. The planar entitiesare then rotated out of the plane of the silicon substrate on integrally fabricated hinges, wherebythey are assembled and joined using arrays of open windows and microrivets. The resultingthree-dimensional structures not only manifest IC quality resolution in both the planar andvertical dimensions, but now the vertical feature sizes that are realizable span from 1 µm tonearly a millimeter. The fabrication process for producing three-dimensional structures frommicrohinged and latachable polysilicon panels was developed using the popular Multi-UserMicroelectromechanical Systems (MEMS) Process (MUMPs) foundry and material system. It

Collection

2003 GSW

Authors

E. H. Shaban

unsatisfactory grade in a course that he taught in a regular basis. Thedepartment asked the faculty member to reconsider a grade change for the graduatingstudent and the faculty member refused. An administrative decision allowed the studentto take an extra test and the student graduated. This incident created an unpleasantenvironment and personality conflict for the faculty member involved with thedepartment. The lawyer used this case during the trial to support the faculty member’slawsuit. The court agreed with the faculty member claim and awarded him the financialloss he suffered for teaching during the summer of 1989 [1].In the summer of 1996, a similar case took place in the same department between afaculty member and another chairman. The faculty

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2003 GSW

Authors

Mohammed Shahbazuddin; Dr. Terrence. L Chambers

in thesupply chain. [1] Proceedings of the 2003 ASEE Gulf-Southwest Annual Conference The University of Texas at Arlington Copyright  2003, American Society for Engineering Education Variability in Supply ChainThe key to understanding supply chain performance is to understand the variability in thesystem. Following are some of the sources of variability in a typical supply chain:Manufacturing: Stock out situations Parts not arriving on time for subassembly operations Machines breaking and disrupting production Labor problems Machine set up/retoolings New product line introductionsWarehousing

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2003 GSW

Authors

P. S. Shiakolas; R. VanSchneck; D. Piyabongkarn; I. Frangeskou

real timethe system response as a result of changes of reference trajectories or controller parameterswould reinforce concepts presented in class. The combination of these two settings in an easyto setup environment and the use of the simulation software for control of the HIL device addanother level of understanding of the fundamental concepts.MATLAB by MathWorks Inc. [1] is widely used in the dynamic system and controls ana lysisand simulation areas. MATLAB is the basic “engine” with add-on components calledtoolboxes. Simulink is a MATLAB add -on that provides a graphical user interface for modeldevelopment and system simulation [2]. The Real Time Workshop, RTW, toolbox is capableof generating real time code for Simulink models [3]. The xPC

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2003 GSW

Authors

William E. Simon; Dr. Terrence. L Chambers

the programobjectives. Such a process is depicted in the diagram of Figure 1.In Table 1 is shown a typical set of desired program outcomes derived through the aboveprocess. The fourteen chosen outcomes are a composite of program requirements from EC-2000 Criteria 1-42 and additional desired outcomes suited to the needs of this particularprogram. It should be noted that while all Mechanical Engineering programs must satisfyCriteria 1-4, additional self-imposed criteria may be adopted for any given program. Once thedesired outcomes are established, a process must then be developed to assure their successfulachievement through adequate assessment and measurement techniques. What follows is adescription of such a process, as well as a long-term

Collection

2003 GSW

Authors

Harold Smith; Madan Dubey; Pradeep Bhattacharya

the programobjectives. Such a process is depicted in the diagram of Figure 1.In Table 1 is shown a typical set of desired program outcomes derived through the aboveprocess. The fourteen chosen outcomes are a composite of program requirements from EC-2000 Criteria 1-42 and additional desired outcomes suited to the needs of this particularprogram. It should be noted that while all Mechanical Engineering programs must satisfyCriteria 1-4, additional self-imposed criteria may be adopted for any given program. Once thedesired outcomes are established, a process must then be developed to assure their successfulachievement through adequate assessment and measurement techniques. What follows is adescription of such a process, as well as a long-term

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2003 GSW

Authors

Carl W. Steidley; Patric Michaud; Stephen Dannelly; Holly Patterson

Collection

2003 GSW

Authors

Carl W. Steidley; Stephen Dannelly; Mario A Garcia; Sreevani Pelala

Collection

2003 GSW

Authors

Ken Van Treuren

figures of merit are used to characterize gasturbine operation. They understand things like efficiency, specific fuel consumption and specificthrust. The turboprop lessons introduce them to turboprop operation including work coefficient.The first class lecture develops the equations of performance to include the core and powerturbine work coefficient. Since the course is a propulsions system design course, propellerefficiency is also discussed. The second lecture looks specifically at the engine to be tested. Theengine is a Pratt and Whitney PT6A-20 turboprop with the specifications given in Table 16 . Across-section diagram of the engine gas path is discussed as well as prominent features of theengine (see Figure 1). The students were to run the

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2003 GSW

Authors

Daniel Waters; Armando Mora; Lizette Zounon; J. Carter Matheney Tiernan

may be able to achieve in the future. The InfinityProject is a nationally recognized partnership between leading research universities, industry,government, and educators that has created innovative educational approaches to modernengineering that are both fundamental and fun.1 The development of the Infinity Project materialwas spearheaded by the Electrical Engineering (EE) faculty at SMU along with engineers atTexas Instruments (TI), makers of the DSP components used in the Infinity VAB kit, andHyperception, Inc., the software developers for the VAB software to control the DSP. TheInfinity Project is designed around hands-on experiments that demonstrate the basic concepts ofelectrical engineering. Each experiment utilizes real-time DSP

Collection

2003 GSW

Authors

Robert Lindsay Wells; Alan Morris; Christine E. Hailey

Proceedings of the 2003 ASEE Gulf-Southwest Annual Conference The University of Texas at Arlington Copyright © 2003, American Society for Engineering EducationCalculus, Differential Equations (and Linear Algebra), Chemistry, Physics, Circuits andEngineering Mechanics (Statics and Dynamics). These courses provide many of the fundamentalskills necessary for success in engineering, and the common curriculum promotes maximumtransferability for students. Table 1 shows a summary of the curriculum (full details can be foundat the THECB web site2). Table 1. Summary of the Field of Study Curriculum for Engineering Academic Topic Courses (3 and 4 credit

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2003 GSW

Authors

Geoffrey Orsak; Betsy Willis

participants havebeen women and minorities, and 65% plan to pursue engineering in college. IntroductionBy 2010, the Department of Labor predicts a shortage of engineers in the U.S. This shortagemay be attributed to a large group of engineers who will be retiring and a lack of freshengineering talent. Less than 15% of all high school graduates in the U.S. have the math andscience background necessary to enter an undergraduate engineering curriculum.1 Only 2% ofhigh school graduates pursue engineering degrees in college, and only 0.5% of women andminority high school graduates pursue engineering degrees in college.2,3 Proceedings of the 2003 ASEE Gulf-Southwest Annual Conference

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2003 GSW

Authors

Geoffrey Orsak; Betsy Willis

novel combination of educational opportunities that reach anincreasingly diverse population of students. IntroductionBy 2010, the Department of Labor predicts a shortage of engineers in the U.S. High schoolgraduates are neither prepared nor interested in pursuing degrees in engineering. Less than 15%of high school graduates have the required background in math and science to enter a freshmenengineering program.1 Less than 2% of high school graduates earn a degree in engineering, andless than 0.5% of female high school graduates earn a degree in engineering.2,3 Over the pastdecade, the number of engineering graduates in the U.S. has remained stagnant.4 Therefore,corporations are forced to bring in

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2003 GSW

Authors

Richard D. Wynn; Chun Ling Huang; Samuel Ibekwe

confers a better generalunderstanding about sand/gas fluidization. This experiment also provides much moreaccurate estimates for the minimum fluidization and material blowout rate. Theinformation obtained in the experiment will be implemented to design better, moreefficient fluidized bed reactors and biomass to pyrolysis processes. IntroductionIn 2000, North America imported more than half its oil at a cost of $109 billion,according to the Energy Information Administration (EIA)1. New energy technologiesbased on indigenous, self renewing resources will help keep these dollars at home tostrengthen the economy and create new job opportunities. With an increasing demand forenergy and a decreasing amount of fossil

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2008 GSW

Authors

Debra Pearson

Session 1-1 Enhancing Engineering Education through Work-Integrated LearningPrograms and Participation in the ASEE Cooperative Education Division (CED) Debra Pearson Division of Professional Practice Georgia Institute of Technology AbstractWork-integrated learning models such as cooperative education, internships, and work abroadprograms enhance engineering education by giving students ample opportunity to practice theirdiscipline in real-world settings. Such

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2008 GSW

Authors

William Jordan

Session 1-2 Ethical Issues Related to Engineering Service Learning William Jordan Mechanical Engineering Baylor University bill_jordan@baylor.edu AbstractService learning within engineering education is increasing in amount andvisibility. The rapid growth of Engineers without Borders (workinginternationally), and the EPICS program (working domestically), demonstrate thistrend.There has been much work dealing with the legitimacy of service learning inengineering education. However, there has been less work

Collection

2008 GSW

Authors

G.H. Massiha

Session 1-3 Home Energy Conservation Audits, A Service Learning Experience For Industrial Technology Students G.H. Massiha Department of Industrial Technology University of Louisiana at Lafayette AbstractThe goal of this project is to conduct testing and community education in the area of home energyconservation and energy reduction to Louisiana homeowners. In the aftermath of hurricanes Katrinaand Rita, rebuilding and repairing of damaged homes located in the areas devastated by