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2003 GSW

Authors

Richard Bannerot

thatactually evaluate team performance of “real” groups. Brickell, et al.2 looked at the issueof the student’s GPA and interest. They formed five sets of groups: Four sets with thecommutations of homogenous and heterogeneous GPA and interest and one control set.They concluded that groups with heterogeneous GPA and homogeneous interestperformed best. Although this result is intuitively acceptable, the opposite grouping(homogeneous GPA and heterogeneous interest) was second best with essentially thesame group rating (87.7 to 87.5 with variances of 0.09 and 0.17, respectively). Hunkeleret al.3 provide a more convincing study of the effects of individual characteristics ongroup performance. They concluded that:1) four person groups outperformed

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2003 GSW

Authors

Richard Bannerot

engineering students. The major component of the coursegrade (50%) was a two month long, team design project: design, build and test. Theproblem statement for the fall 2002 class is given in Fig. 1. Twenty per cent of the gradewas based on my evaluation of the final artifact. (The rest of the grade was determinedfrom written progress reports, final written and oral reports and the results from twotesting sessions). Last fall the students were asked to evaluate all the designsthemselves. They were given the instructions found in Fig. 2. The designs were all ondisplay in the workshop, and students in groups of eight were given about fifteen minutesto view and record their evaluations of the designs including their own. The students hadalso viewed all

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2003 GSW

Authors

Ronald E. Barr; Thomas J. Krueger; Ted A Aanstoos

concurrent engineering design paradigm based on 3-D solid modeling principles.1-3 Thispast decade has also unveiled the important applications of the 3-D model to engineeringanalysis, manufacturing, and downstream documentation. Low-cost analysis, simulation, andrapid prototyping software and hardware systems are now becoming available for educationalpurposes, and the power of this latest design paradigm is now being realized by the engineeringdesign and graphics education community. 4-8 Proceedings of the 2003 ASEE Gulf-Southwest Annual Conference The University of Texas at Arlington Copyright 2003, American Society for Engineering Education

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2003 GSW

Authors

Ronald E. Barr; Marcus G. Marcus G.; Anthony Petrosino; Lawrence D. Abraham; Tejas Karande; Bijal Patel

as needed. There is no required textbook for the course and the primarylecture content has been prepared over the years by the first author. The major lecture topicscovered in the course include: 1. Musculoskeletal Physiology and Anthropometrics; 2. Analysis and Simulation of Human Movement; 3. Biomechanical Systems and Control; 4. Computer Graphics Modeling in Biomechanics; and 5. Experimental Techniques in Biomechanics.In the Fall 2002 semester, the course was involved in testing educational materials as part of amuch larger educational research consortium, the NSF-sponsored VaNTH Engineering ResearchCenter for Bioengineering Education. 1 The objective of the consortium is to develop a

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2003 GSW

Authors

Ronald E. Barr; Justin Cone; Robert J. Roselli; Sean P. Brophy

Initial Experiences Using an Interactive Classroom Participation System (CPS) for Presenting the Iron Cross Biomechanics Module Ronald E. Barr1 , Justin Cone 2 , Robert J. Roselli3 , and Sean P. Brophy3 Mechanical Engineering Department 1 and Faculty Innovation Center2 The University of Texas at Austin Austin, Texas 78712 Biomedical Engineering Department3 Vanderbilt University Nashville, Tennessee 37235 AbstractThe Classroom Participation System (CPS) is an interactive, computer-based instructional

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2003 GSW

Authors

Khosrow Behbehani; Kevin D. Nelson; Robert C. Eberhart

Collection

2003 GSW

Authors

Pradeep K. Bhattacharya

bulk micromachining though people are trying to hybridize thesecomponents.1 So a compromise is used to marry standard CMOS process to fabricate electricaland mechanical parts with wet etches such as potassium hydroxide (KOH) or ethylene-diamine-pyrocatechol (EDP), to remove materials, anisotropically, at different rates along different crystalplanes. Since KOH is incompatible with CMOS processing and metal ion and hydroxyl iondiffusion contaminates dielectric oxides, this etch is only used for non-active electronic devices.One must not forget that focus is shifting towards the fabrication of new nano-devices based onthese thin electronic oxide materials and there are many new integration challenges in oxidebased nano-electronics. For example

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2003 GSW

Authors

Shantanu Bhattacharya; Jordan M. Berg; Darryl James

, familiar phenomena such as fluidmixing behave counter to the intuition developed by students in a standard engineeringcurriculum. We present a laboratory project designed to stress this point to students taking a first-year graduate introduction to microsystems. The pilot group found the results surprising andcounter-intuitive. It appears that the project was instrumental in clarifying key concepts inmicrofluidics. IntroductionAfter several decades in which microsystems research mainly addressed electromechanicalsystems [1], the focus has begun to shift to fluidic systems. This shift is driven primarily bypotential application of microsystems to chemistry, biology and medicine [2]. An introductorycourse in

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2003 GSW

Authors

Robert R. Bittle; R. Stephen Weis; Becky B. Bittle; David Yale

the enthusiasm for learning that the individuals attending our summer course have,the classroom sessions are always interactive and filled with lively discussions. The time goesby very quickly. Figure 1. Energy conversion in the laboratory. Water wheel in the background.The afternoon sessions are held in the Thermal Systems Laboratory. The week-long objectivefor the afternoon sessions is to build a complete energy conversion system. The system we haveused for the past two summers has converted the potential energy of the lab water supply intoelectrical power through a water wheel. The teachers have been in charge of building the waterwheel, its installation, and characterizing the

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2003 GSW

Authors

Bonnie Boardman; Lynn Peterson

descriptions of the lecture course, Experiences in Engineering, and the lab course,Introduction to X Engineering are given in Figure 1 below. The X in the lab title represents theoffering department. For example, there will be an Introduction to Mechanical Engineeringcourse, an Introduction to Computer Science Engineering course, etc. The lecture courses willbe co-listed in each department. XE 1104 (1-0) 1 hour credit. Experiences in Engineering: Introduction to basic engineering concepts. Students will become familiar with engineering and its many sub-fields, ethical responsibilities, creativity and design. XE1105 is required co

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2003 GSW

Authors

Terrence L. Chambers; William E. Simon

controller of an entire assembly line, controlling three other machines in additionto our own. Finally, through the mediation of the MEPoL field agent, all parties agreedupon the scope of the project.A further difficulty is simply that the projects turned out to be deceptively difficult tosolve. As a result, the students ended up putting in far too many man-hours on eachproject. Figure 1 shows the students working on one of the projects. Proceedings of the 2003 ASEE Gulf-Southwest Annual Conference The University of Texas at Arlington Copyright  2003, American Society for Engineering EducationFigure 1. Students Working on Industrial Project Lessons

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2003 GSW

Authors

Chu–Chen Chen; Chun Ling Huang

Energy Conservation and Energy Management,Building System Performance Simulation Techniques, Building System Contracting ProjectManagement, and Internships. IntroductionAs the energy educators and energy consultant in Building Energy Systems Design, the authorscontinue to hear concerns that energy education is still neglected at institutions of higher learning[1, 2]. During the Tri-State Engineering Society meeting in the summer of 2002, one of ourauthors [3] presented a survey about the educational system in three Southern states. Thefindings from this survey indicated that only two of the seventeen Mechanical EngineeringDepartments offer only one technical elective course related to the Heating

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2003 GSW

Authors

Ifte Choudhury; Ricardo E. Rocha; Richard Burt

The University of Texas at Arlington Copyright © 2003, American Society for Engineering EducationGiven this importance, industries report that students graduating from technical programsare generally not well prepared for the writing requirements of the contemporaryworkplace 1. Industries naturally have their own set of terminology committed to thespecific requirements and situations exclusive to their form of business. Communicatingeffectively within an industry is a direct result of an individual’s ability to understand anduse the industry’s vocabulary and communication practices. Effective writtencommunication skills can assist in the acquisition of sought-after contracts and clients aswell as assist in maintaining

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2003 GSW

Authors

C. J. Chuong; K. Nelson; K. Behbehani; R. C. Eberhart

/MSdual degree program. This new program is significant in: 1) being responsive to the everchanging environment of biomedical engineering, placing particularly strong emphasis on thelife sciences; 2) emphasizing the application of engineering principles to problems whichincrease understanding in the field of cell and molecular biology; 3) providing focused trainingto meet the demands of a rapidly growing segment of a high-tech industry. This program bringsintellectual diversity to our graduate students, intermingling students with strong life sciencebackground with the more traditionally trained students with engineering backgrounds. Thisprogram is set up for problem-based learning, and may provide a platform to develop a newproblem-based

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2003 GSW

Authors

David L. Cocke; John L. Gossage; Emrah Alicli; Beytullah Misirli; Kuyen Li

available and best practice pedagogy (BPP), that Classroom is very complementary with the technology, can be a powerful guide to technology based classroom innovation. Best practice pedagogy, Pedagogical Assessment/ Evaluation defined as the best of the art and science of Processes teaching, utilizes research, theory, the study of learning, and the history and philosophy of Figure 1. Four main classroom processes education. Chemical

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2003 GSW

Authors

H.W. Corley

. Contest AdministrationThe money for the scholarship is raised by the author during the fall semester preceding theFebruary contest. Funds come from both industry and individuals. In previous years The BeckGroup, UPS, and TD Industries have provided support. Two weeks before the contest, a two-page poster similar to the 2002 edition shown in Appendix 1 on pages 4-5 is posted around theengineering buildings to announce the contest. The colorful chimpanzee version of the famousRodin sculpture The Thinker attracts students to the posters. It has become the unofficial DirtyDozen logo. Finally, a week before the contest the UTA student newspaper The Shorthornpublishes a short front-page article about the contest as part of its Engineering Week

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2003 GSW

Authors

Jeanne M. Gerlach; Bill D. Carroll

results.Draft standards developed by the committee for grades 8-12 are detailed in Table 1. Knowledgeand application expectations for standard 2 are given in Table 2. ConclusionsDeveloping teacher certification standards for engineering is a positive step. However, the realchallenge is attracting qualified candidates to teaching. It will be difficult for anyone notcompleting an undergraduate degree program in engineering to meet the draft standards.Another challenge is interpret the standards at a level appropriate and realistic for grades 8-12.The final step is for educators to find creative approaches to address these challenges. Proceedings of the 2003 ASEE Gulf-Southwest Annual

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2003 GSW

Authors

Mostafa Ghandehari; Samee Ullah Khan

Examples from Elements of Theory of Computation Mostafa Ghandehari Samee Ullah Khan Department of Computer Science and Engineering University of Texas at Arlington, TX-76019, USA Tel: +1(817)272-5688, Fax: +1(817)272-3784 {ghandeha,sakhan}@cse.uta.edu AbstractStudy of formal languages is a central topic in theoretical computer science and engineering.Results from number theory are used to give examples of regular and non-regular languages. Inparticular Goldbach’s conjecture gives examples of two non-regular languages whoseconcatenation is regular

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2003 GSW

Authors

James M. Gregory; Akanni Lawal; John Rivera; Lloyd Heinze; Gary Harris; Donald Bagert

now packaged at a website, E—COACH (College Optimal Advisor and Career Helper) that can be used to provide just-in-timeinformation and assessment to help students succeed in college.1 E—COACH can be accessedfrom the College of Engineering web page at www.coe.ttu.edu. Students can use this site forassessment and feedback of information in selecting a major, determining type of leadershipstrength, learning how to learn including study and time management, and sleep management.E—COACH also provides access to QUICK Advisor, which includes online scheduling andregistering for classes. While all students at Texas Tech University have access to these tools,we monitor the gpa of NSF scholars (our small test group to determine who the processes will

Collection

2003 GSW

Authors

James M. Gregory; Xuepeng Xie; Susan Mengel

percent drop in efficiency for thecombination of 0.05 percent blood alcohol and 18 hours of sleep debt. This paper willinclude information about the development and use of this model to improve studentacademic performance. IntroductionSleep is required for human life; it is just as essential as air, water, and food. Humansbecome highly stressed and eventually die when they are denied air, water, food andsleep. For air, problems develop in a matter of minutes depending on metabolism andhealth of the individual. With water, problems develop within a few days. With sleep,problems develop within a few weeks.1 For food, problems and death occur in a matterof a few months depending on the initial weight of the

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2003 GSW

Authors

Melanie Hagewood; Ken Van Treuren

the turbulence generation grid and thewind tunnel itself. In summary, two major questions were explored during this experiment: 1) isthe flow at a given cross-section of the tunnel both uniform in velocity and turbulence intensityand 2) is the turbulence downstream of the turbulence generation grid decaying as expected?These two questions were evaluated by comparing the data from this experiment with the resultspresented in Roach1 . Background and TheoryTurbulence intensity, or TI, is a measure of the level of turbulence present in the flow. TI isdefined as the square root of the mean square of the fluctuating velocity divided by the time-averaged velocity, or

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2003 GSW

Authors

Mohammed E. Haque

a T = Σ (wi xi) Activation function given set of input values2. An ANN is composed of simple interconnected elements called processing elements w1 w2 w3 Synaptic weights (PEs) or artificial neurons that act as Inputs coming from microprocessors. Fig. 1 illustrates a other PEs (corresponds X1 X2 X3 to the dendrites of a simple processing element of an ANN biological neuron

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2003 GSW

Authors

Chun-Ling Huang

include the ability to use symbols, learning through observation, planning,self-regulation, and self-reflection [1]. A brief description of each of these humancognitive capacities follows: Ability to Use Symbols: By the use of symbols, humans transform immediatevisual experiences into internal cognitive models that in turn serve as guides for theiractions. Through symbolizing, people also ascribe meaning, form and duration to theirpast experiences. Learning Through Observations: Learning can also occur indirectly by observingother people’s behavior and its outcomes. Individuals’ capacity to learn by observationenables them to obtain and accumulate rules for initiating and controlling differentbehavioral patterns without having to

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2003 GSW

Authors

Alfred J. Jayachandran; Edward S. Kolesar

components can readily be accomplished using microelectro-mechanical systems (MEMS) technology. Numerous electrically driven microactuators havebeen investigated for positioning individual elements in microelectromechanical systems(MEMS) with the most common modes of actuation being electrostatic, magnetostatic,piezoelectric and thermal expansion [1]. Electrostatic and Magnetostatic actuators producerelatively small forces, which are insufficient to achieve large displacements. In order to achievelarge displacements due to larger forces, piezoelectric and thermal expansion actuators should beused. Unfortunately, piezoelectric materials are not routinely supported in the fabricationprocesses offered by commercial MEMS foundries, as a result, these

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2003 GSW

Authors

H. Dwayne Jerro; Chun-Ling Huang; Patrick Mensah

principles and laws necessary forenergy transformation are also covered. These concept maps are developed in hope that thestudent will be able to qualitatively and quantitatively grasp the fundamentals and how they arelinked, and appropriately apply them in the analysis of engineering systems. IntroductionOne of the key elements to becoming a capable engineer is to be able to visualize a givenproblem. One body of thought is to (1) seek understanding of the problem, (2) formulate awritten description of the problem, and then (3) formulate a method, procedure, or schematic tosolve the problem. However, many engineering students find it difficult formulating a solution. Proceedings of the

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2003 GSW

Authors

Jennifer R. Jewers; Robert R. Bittle

. Because glass tubes have extremely smooth inner walls in comparison to the relativeroughness of a drawn copper capillary tube, the two-phase flow behavior may be different. Theproper characterization of the two-phase flow field downstream of the flash point is necessary foran accurate prediction of pressure drop and flow rate in the capillary tube.The fiberscope used was a 0.020 in. (0.51 mm) diameter glass fiber bundle roughly 39 in. (1 m)in length with at teflon coating. The fiberscope was inserted into the upstream end of thecapillary tube through a specially designed fitting. The fiberscope lens at the end of the fiberbundle was positioned approximately 32 in. (80 cm) downstream of the capillary tube inlet. Bycarefully controlling the

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2003 GSW

Authors

William Jordan

pointed out9,10,these codes are not perfect, and will not cover all the possible issues that the engineer might face.We believe that teaching about basic moral theories can give the engineer a good moral basisupon which to make decisions. In this paper we will introduce several of the basic moraltheories that have been discussed by Martin and Schinzinger7. Among the theories we will useare: 1. Utilitarian theories. 2. Duty theories. Proceedings of the 2003 ASEE Gulf-Southwest Annual Conference The University of Texas at Arlington Copyright ©2003, American Society for Engineering Education 3. Rights theories. 4. Virtue

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2003 GSW

Authors

Bill Elmore; Stan Napper

pointed out9,10,these codes are not perfect, and will not cover all the possible issues that the engineer might face.We believe that teaching about basic moral theories can give the engineer a good moral basisupon which to make decisions. In this paper we will introduce several of the basic moraltheories that have been discussed by Martin and Schinzinger7. Among the theories we will useare: 1. Utilitarian theories. 2. Duty theories. Proceedings of the 2003 ASEE Gulf-Southwest Annual Conference The University of Texas at Arlington Copyright ©2003, American Society for Engineering Education 3. Rights theories. 4. Virtue

Collection

2003 GSW

Authors

Amir Karimi

within the College ofSciences and Mathematics and began offering undergraduate degrees in Civil, Electrical, andMechanical Engineering. In 1983 the college name was changed to Sciences and Engineering.In preparation for the ABET accreditation under the Engineering Criteria 2000 (EC-2000)1, a setof educational objectives and statements of output assessments2 were developed for themechanical engineering undergraduate program in Spring 1999. Proceedings of the 2003 ASEE Gulf-Southwest Annual Conference The University of Texas at Arlington Copyright  2003, American Society for Engineering EducationAn academic restructuring in Spring 2000 resulted in the partition of the College

Collection

2003 GSW

Authors

Jerry K. Keska; Raghavender Charupalli

fluctuations withreasonable and tractable models of performance. In the two-phase flow experiments, it isnecessary to consider the fluctuations as random. As a tool to carry out the procedure, acomputer-aided system (CAS) presented in Figure 1 and 3 is developed, which consists of thefollowing components. 1.AT-MIO-16E-2 data acquisition (DAQ) board (E series architecture 500kSamples/s, 12-bit, 16 analog input multifunction DAQ, 16 single-ended/8 differential channels, two 12-bit analog outputs, 8 digital I/O channels). 2. CB-68LP I/O Connector, having dimension 7.62 by 16.19cm equipped with 68 screw terminals for easily connecting 68-pin DAQ devices, has a vertical mounted 68-pin connector, which includes one 68-pin