Collection

1997 Annual Conference

Authors

Luis M. Bocanegra; Jose L. Rivera

the microphone.Interference between the sound waves reflected from the sample and those traveling toward it setup a standing wave field whose amplitude varies with the position in the tube. With the aid of anoscilloscope, the amplitude of the maximum and minimum signals received by the travelingmicrophone may be measured. From these values the sound absorption coefficient, D , iscalculated as follows 4B α = (1) ( B + 1 )2where B is the ratio between the maximum and minimum voltage displayed by the oscilloscope, Vmax B

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1997 Annual Conference

Authors

Byron S. Gottfried

of each day’s programming activity,primarily for accountability rather than grading purposes. A more comprehensive programmingassignment, to be completed outside of class, was also given each week. Page 2.385.2The Transparency SetOver the past two years we have refined the transparency set, which now includes 96 separatetransparencies. These transparencies serve as the backbone of the course. The nature of thetransparencies can be seen from the representative examples shown in Figs. 1 through 3. Figure1, for example, shows a very simple but complete C program. It is introduced during the secondclass session to illustrate several points

Collection

1997 Annual Conference

Authors

M. E. Parten

number of digital books are also available on reserve in the library listed under the EE labs. Programs: Pspice, PLsyn Week Topic Book 1 Number Systems (C) Ch 1 2 Boolean Algebra (C) Ch 2 3-5 Combinational Logic (C) Ch 3 with Intro. To HDL Plsyn & Pspice 6,7 Sequential Machines (C) Ch. 5 Plsyn 8-10 Programmable logic devices (C) Ch 6

Collection

1997 Annual Conference

Authors

Ratan Kumar

multimedia application, providing simulation, performing mathematicalmanipulations and spreadsheet analysis. Previously created models were often used for softwarethat needed an extra learning time. The multimedia tool as a learning aid holds a lot of promisein providing a good learning mechanism. This helps the students to learn by acting and reflectingand not by watching and listening. Currently most of the multimedia tools are on CD ROM’s.However in the area of dynamics, not many are available. The author used the work byGrammoll’ extensively. Figure 1 shows a sample screen availble in the software for 4.1 F-16 Scramble Prkicipte of Impufse ati Momenw 4.2 The Porsche Barge Jump

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1997 Annual Conference

Authors

Mark A. Shields; Bryan Pfaffenberger

uniformly as the single most valuableexperience of TCC 101. In a course evaluation questionnaire, students ranked the ECOPproject highly (see Table 1); in fact, they ranked it higher than all other course experiences(see Table 2). Table 1. Selected Responses to Student Course EvaluationQuestion Section 1 Section 2 Section 3Please indicate the relative contribution of 1.50 1.64 1.62ECOP to what you’ve learned in the course sofar (1 = Very Important, 2= Important, 3 =Somewhat Important, 4= Not Important)Do you feel that you’ve had something 1.60 1.57 1.42valuable, useful, and important to contributeto your ECOP team project

Collection

1997 Annual Conference

Authors

Ingrid H. Soudek

issues because both start out Page 2.389.1with the same basic ideas, but Gilligan shows how gender affects course of actions taken inresponse to a "dilemma" and how the interpretation of women's choices of action consistently areinterpreted as falling short of moral autonomy. (Gilligan, 1982, 17-23)Kohlberg believes that the goal of moral development is to reach moral autonomy, which,according to him, few people are able to achieve. On the way to moral autonomy, an individualgoes through three stages of moral development: 1. The Preconventional Level is the mostprimitive and is seen mostly in young children and a few adults. The individual is

Collection

1997 Annual Conference

Authors

John A. Orr; David Cyganski; Richard Vaz

engineering orcomputer science. Currently, only students in these disciplines are apt to become familiar withstate of the art capabilities and applications of computer and communications networks.However, professionals in virtually all fields, including engineering, science, management andfinance, the health professions, law, education, social and political science and journalism, willencounter opportunities to be more effective practitioners and leaders in their disciplines if theycan make good use of information technologies. Hence, there is a need for students in alldisciplines to become acquainted with the underlying principles of modern informationtechnologies [1].A new course titled “Information Engineering Across the Professions” addresses

Collection

1997 Annual Conference

Authors

Richard Gilbert; Andrew M. Hoff

manufacturingpersonnel. These people will not have degrees in material science and may not have anyinitial material science or processing training. The icon sequence approach is a particularlyvaluable vehicle for training this group. Figure 1 represents a general process behavioral model that illustrates a particularsequence of material process icons which produce a resistor function when implemented insilicon. Upon examination of this figure it is clear that there are many similar iconsrepresented, but the label at the bottom of similar icons may be different. Hence, in evensuch a simple sequence, classes of material processes may be separated. For example scrub,clean, strip, and etch are representative elements of a chemical process functional

Collection

1997 Annual Conference

Authors

Richard R. Schultz

1 Session 3532 Teaching Signals and Systems through Visualization with Image Processing Richard R. Schultz University of North DakotaAbstract: Most signals and systems courses teach abstract concepts such as convolutionand Fourier transform theory using only one-dimensional (1-D) signals. However, real-life1-D signals such as speech and music do not possess easily recognizable visual forms, andthus the effect of applying a particular signal processing

Collection

1997 Annual Conference

Authors

Scot Douglass

quizzes or exams. We attempt toclarify from the beginning that good participation is not a function of the quantity ofcomments made in class, but is based on a number of fairly well-defined criteria. Inrespect to participation, each student is evaluated according to the following sixcategories. 1) Quality of listening as demonstrated in the coherency of his comments with those of others. 2) Commitment to group learning as seen in her respect for the ideas of others, a certain civility in the treatment of others, an active commitment to including the Page 2.393.4 entire class, etc. 3) Pre-class preparation as evidenced

Collection

1997 Annual Conference

Authors

Duane L. Marcy; James C. Sturm

function. The fabricationsteps that were used to create discrete transistors are exactly the same as those required to make anintegrated circuit. At Princeton, the process used is a four level, 252m, PMOS process, which isoutlined in the left-hand column of Table 1. Once the new mask set is designed, the fabricationportion of the lab is taught exactly as it was for upper-level course. Note, the new mask only has tobe designed once and can be re-used for each new lab session. The measurements portion of the lab also has to be modified to correspond to the circuitscreated by the new mask set. This will be done by combining the three measurements sessions of theold lab to the three sessions at the end of the semester, as shown in Table 1

Collection

1997 Annual Conference

Authors

Jerry W. Samples

faculty. The short course addresses topics in preparation, presentation, self-critique,learning models, course and lesson goals and objectives, advanced technology, student-teacherrelations, testing/grading, advising, legal aspects of teaching, and time management. Perhapsthe most unique feature of the course is that participants and instructors prepare, present, andcritique practice classes. This work details the development, execution, and assessment of thisinnovative engineering teacher training program.1. IntroductionThe vast majority of engineering professors have had no training on how to educate students, andyet they are expected to be capable and efficient engineering teachers because of their technicalschooling and engineering experience

Collection

1997 Annual Conference

Authors

Roman Kuc

Web page on the Yale computer system. The enrollment was equally distributed over the Freshman to Senior classes. Two grad-uate students and two high school students were also enrolled. Students came from variousbackgrounds, but predominantly from the liberal arts. A few computer science and physicsmajors who were interested in learning about applications also enrolled.LecturesThe following topics are covered in the lectures, with each topic corresponding to a chapterin the manuscript: 1. Digital information sources. Information% defined as a quantity that is needed by a system to complete a task. The mechanical switch, familiar to all students, is treated as a source of binary information. An open pair of contacts represents a

Collection

1997 Annual Conference

Authors

Robert E. Magowan; Azmi Bin Ahmad; Deborah Hochstein

gatheringinformation from a variety of engineering texts and interviewing both engineering faculty andconstruction firms, the students selected four controllable variables and three interactions, eachwith two levels, (Table 1), which resulted in a total of seven degrees of freedom. Hence an L8orthogonal array was selected for the inner array. The four controllable factors were, regular tapwater, (A), Portland cement (type I), (B), pea-gravel, (C), and sand, (D). The three interactionswere between: water and cement, (AxB); water and coarse aggregate, (AxC); and cement andcoarse aggregate, (BxC). The two uncontrollable (noise) factors were humidity, factor X, andtemperature, factor Y. Studying the interaction between these noise factors required threedegrees of

Collection

1997 Annual Conference

Authors

Thad Welch

Systems is a required course for all ElectricalEngineering, Civil Engineering, Physics, and Computer Science majors. Of the 42 studentsstarting the course only 2 were Electrical Engineering majors. A majority of the ElectricalEngineering majors take this course during the Spring semester. The questions, a partial listingof the possible responses and the average numerical response to the questions are providedbelow.1. How comfortable would you be working on an energized three-phase 240 VAC circuit? 1. Very Comfortable Page 2.398.1 2. Moderately Comfortable 3. Not Very Comfortable Average - 2.452. How comfortable would you be

Collection

1997 Annual Conference

Authors

Valerie L. Young; Peter L. Silsbee; Joseph W. Newkirk; Bradford L. Snowden; Anu Maria; Jerry W. Samples

recently been through a similartraining program was a good thing, too. Sort of a bridge between the newbies and thementor. Most of the ground rules of the critiquing itself were unspoken, and I don’t thinkneed to be laid out explicitly for a self-selected group. Honesty and the criticism of whatthe person did, not of the person, were both followed by all participants as I remember.Three things about me that made me go to the short course:1. Wanted to get a head start on the teaching part of my tenure package. I have muchmore experience with research than with teaching.2. Had some rotten teachers myself as an undergraduate and decided that teaching is animportant part of the university mission and I wanted to do better.3. My one semester of

Collection

1997 Annual Conference

Authors

Philip J. Regalbuto; Page Ransom; Mary Morton-Gibson; Lise V. P. Esch

Technology core curriculum to meet future needs. One of the ways to improvethe Engineering Technology curriculum is to integrate key skills. In the Summer of 1996, fivemembers of the SCATE team from Trident Technical College were granted release time to reviseEGR 103 course content to reflect the new emphasis on team building, co-operative learning andcommunication skills that are in demand from industry and education.1 The remaining two teammembers were granted release time to study and develop assessment methods.Course revisionIn the revised version of this course some of the topics were retained: Units and measurements;graphing; calculator skills and treatment of significant digits are topics that elude theunderprepared student. Four additional

Collection

1997 Annual Conference

Authors

Philip R. Dail

one class, I have discovered a variety of instructionalstrategies for making large classes work reasonably well. Many of the ideas I will share arecommon practices to experienced educators. My intention is that these ideas will prove helpfulto those with less experience.Pre-First Day(1) Plan a first-day activity. Nothing is more frustrating to a student than to feel “left out” or at least “in the dark” at the first class meeting. In a class where intimidation due to size is already a factor, spending the first class pouring over a syllabus is probably not an effective means of engaging the class. Having them scan the syllabus in groups of 2 or 3 and prepare questions about what they did not understand is one means of involving

Collection

1997 Annual Conference

Authors

Herbert Hess

value ofhuman interaction is a reason that distance education by Internet is more complex and difficult aproblem than some of its proponents would lead educators to believe.1 To mitigate their own occasional absence, instructors have employed several low-techmethods. Among the more popular are canceling the class, postponing the class, or hiring asubstitute instructor. With the recent advances in communication technology, a wider range ofoptions opens. A creative instructor may now take advantage of a greater range of professionalopportunities outside the classroom while disrupting the classroom schedule less than was thecase in the past. This paper presents field-tested options to combine technologies to maintain thepersonal touch, not

Collection

1997 Annual Conference

Authors

John T. Bell; H. Scott Fogler

Session 3213 Ten Steps to Developing Virtual Reality Applications for Engineering Education John T. Bell, H. Scott Fogler Department of Chemical Engineering University of MichiganIntroductionWork has been conducted in the Department of Chemical Engineering at the University ofMichigan for several years to develop a series of virtual reality ( VR ) based computer modulesfor use in undergraduate engineering education. The goals of this work have been threefold: 1. To produce modules with as much practical use to as many

Collection

1997 Annual Conference

Authors

Thomas G. Stanford; Donna J. Michalek; Donald Keating

researchers and university teachers, there is broadrecognition that graduate engineering education must change to meet new challenges in thedevelopment of engineers for technology innovation in industry. As Morita,1 Chairman of SonyCorporation points out ... $The challenge for all countries, not just ours, is management of newtechnologies, new development, new products. We will need a lot of new ideas. Technology Page 2.430.1management will be the key to success for companies anywhere in the world in the coming years.Knowing how to make the best use of your engineers will be a test of whether a company willsucceed in the coming age.#Over the long term

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1997 Annual Conference

Authors

William W. Schultz; Roger W. Pryor; Michael Vaksman; Mark Schumack; Kevin Belfield; Vladimir Sheyman; Mukasa Ssemakula; Shuvra Das

, and case studies are given.I. INTRODUCTIONTraditionally, thermodynamics, fluid mechanics, and heat transfer are difficult subjects forstudents to master. Thermodynamics in some universities, for example, has failure rates as largeas 20% - 40%, contributing to poor retention rates in engineering [1]. Students eager to learn atthe beginning of the term in fluid mechanics soon become lost as they struggle with the calculusand identification of appropriate models for various flow phenomena. By the time they reachheat transfer (if they get that far) – a subject that requires knowledge of both thermodynamics andfluid mechanics – many have resigned themselves to an insecure understanding at best, and

Collection

1997 Annual Conference

Authors

Mary E. Besterfield-Sacre; Larry J. Shuman; Cynthia Atman; Harvey Wolfe

require additional stress. For example, over the past four yearswe have observed a significant positive trend in the attitudes of our entering freshmen relative totheir initial impressions of engineering. (See Table 1.) This suggests that initiatives to better in-form prospective students about engineering have been effective, and these students may be moreinclined to remain in engineering. (We have documented that freshmen who left engineering ingood academic standing, began the year less committed to engineering than those who stayed11.) Year Male Female 1994 3.82 3.67 1995 3.86 3.81

Collection

1997 Annual Conference

Authors

Rick L. Homkes; Kevin D. Taylor; Russell A. Aubrey

Collection

1997 Annual Conference

Authors

Kathryn A. Neeley

integral part ofprofessional engineering education, we will need to go beyond generalizations and readyexplanations to inquire into (1) the specific knowledge, skills, and experiences that constitute the Page 2.442.1ability to communicate effectively about technical matters and (2) the cultural and historicalcontexts that have shaped contemporary views of engineers and technology.We need a new vision of technical communication that is interdisciplinary and integrative andestablishes strong links between communication and intellectual activity. It should have severalkey components.1.) It should be consistent with the notion of career preparation

Collection

1997 Annual Conference

Authors

Sue Godez; Scott Evans; George H. Staab; Eric Engdahl

Collection

1997 Annual Conference

Authors

Amer Mokaddem; James Moller

the learning of stress transformation and Mohr’s circle is introduced. It displays diagramsof the state of stress and the corresponding Mohr’s circle as transformation angle is varied.Results of student testing indicate it is most effective at improving ability to anticipate thevariation of stress magnitude as transformation angle varies and for identifying principal stresseson the circle.IntroductionThe transformation of stress, strain, moment of inertia among coordinate systems is important instatic and structural analysis. Late in the last century, Mohr 1, 2 introduced a graphicalconstruction to assist in the process. At Mohr’s time, the technology for graphical constructionwas drafting and any technology for computation was quite tedious

Collection

1997 Annual Conference

Authors

Paul Rossler

weigh the design experiences (70% of the final course grade) so that students take each design experience seriously. • Limit design teams to two students to minimize student coordination and group dynamic costs. • Eliminate longer, comprehensive exams and use shorter quizzes after each design experience to test individual member’s subject knowledge and skill. • Complete all design experiences by the ninth week of the academic section.General Design Experience FrameworkStudents were first introduced to basic concepts and relationships of production system dynamics(as opposed to the static case). They then developed a spreadsheet analysis of a simpleproduction system (Figure 1). The basis for

Collection

1997 Annual Conference

Authors

Kara B. Wright; Charles T. Wright; Christine L. Collier; Lawrence Genalo

no prior experience withprogramming languages. The programming language they were given to use was ICC11, asubset of the programming language C. Included with ICC11 was a collection of built-incommands with which to control simple robots. One such command, motor(mtr,spd), isprovided to instruct motor mtr to turn at speed spd. For the particular computer system used,four motors can be controlled with mtr given the value 1, 2, 3, or 4. The speed value, spd, can bein the range from -16 to +16 inclusive. Thus, for example, the command motor(1, 16) tells motor1 to go in the forward direction at the speed of 16 (i.e., full speed ahead). The commandmotor(1,-16) causes motor 1 to go backwards at full speed while the command motor(1,0) turnsmotor 1

Collection

1997 Annual Conference

Authors

Holly G. Peterson

which air parcels aretagged with a tracer gas. The air parcels are tracked while measuring concentrations downwindof the source, and by investigating how the tracer behaves, we learn how pollutants are advectedand diluted by the atmosphere. As reported by Gifford, substances used as tracers by early researchers include Kleenexlint, dandelion seeds, balloons, smoke puffs, and soap bubbles.1 Shortcomings associated withthese tracers are non-negligible mass constraints in addition to detection and measurementlimitations. During the past decade, however, significant developments have been made ingaseous tracer technologies. Compared to particles or balloons, non-reactive gases are morelikely to truly follow the airflow, and tracer gas