Collection

1999 Annual Conference

Authors

Theodore E. Fahlsing

of a completed power supply projectis in Figure 1. Figure 1: Power SupplyVoltage Regulated Power Supply Design As with most introductory electronic device courses it starts with the PN junction andapplications of diodes. Special emphasis is placed on device specifications. The fundamentalsof basic rectification and capacitive filtering are covered in the lecture and the associated labs.The lecture topics are enhanced by using the circuit of the power supply constructed in the firstcourse of the project sequence as a vehicle to explain the design process of selecting theappropriate specifications for the transformer, diodes for the rectifier and capacitor for the filter

Collection

1999 Annual Conference

Authors

S. Andrew Hale; Roger Rohrbach; Larry Stikeleather; John Parsons; James Young; Susan M. Blanchard

Collection

1999 Annual Conference

Authors

Takayuki Sugita

on the results of the study conducted, 50 % of the students have come to under-stand and 70 % became interested in learning CAD. Some students who at first disliked the tradi-tional manual drafting turned out to advocate CAD and CAD preference is more influenced by thetraditional drafting experience rather than by keyboard skills.1.IntroductionTowards the end of 1970 CAD has been especially prevailing as the main tool in the field of theautomotive, aircraft, architecture and electricity. Presently, it is not too daring to say that CAD hasconsiderably replaced traditional manual drafting. In light of this technological advancement, CADsystems have been gradually putting into use even in high-school level. Considering the fast tech-nological

Collection

1999 Annual Conference

Authors

Shih-Liang Wang

of computer graphics addresses, among other topics,geometric transformation and parametric curves and surfaces, including B-spline and Beziercurves. These subjects applied to the design of airfoils, auto bodies and ship hulls, as well as tocommercial advertising and movie making. Without good understanding of these graphics fun-damentals, CAD users can not effectively use associated tools.Most textbooks [1-4] covering these graphics subjects are primarily written for computer sciencemajors. Algorithms to implement these concepts are efficient but difficult to be programmed inthe conventional programming languages that engineering students are familiar with. Many en-gineering students feel the complex mathematical expressions and programs

Collection

1999 Annual Conference

Authors

Ann M. Bisantz; Amjad Aref; Alexander N. Cartwright

used near the beginning of a freshman levelintroductory engineering course. The case had the following objectives: 1. To introduce new engineering students to the discipline of engineering by illustrating the roles of various types of engineering in a large, current engineering project that has the potential to greatly impact aspects of society - the Intelligent Transportation System (ITS). 2. To introduce these students to the idea that engineering projects are multi-disciplinary in nature. 3. To introduce the students to a fundamental way of engineering thinking – the decomposition of problems and systems into smaller, more manageable parts. 4. To introduce the concepts of system

Collection

1999 Annual Conference

Authors

Robert M. Ybarra

(1) DmWe did, however, created experiments to measure solid/liquid equilibria, q* and pore diffusioncoefficient, Dp followed by a capstone fixed bed adsorber experiment.Equilibrium Isotherm. The equilibrium isotherm describes how the adsorbate molecule distributesbetween an adsorbed state and bulk fluid phase. The familiar Langmuir isotherm model representsthe solid/liquid equilibria bc q* = 1 (2) 1 + b2 cIf the adsorption becomes highly favorable, the isotherm approximates a rectangular or irreversibleform (c = 0, q* = 0; c

Collection

1999 Annual Conference

Authors

Nanette Veilleux

volume from the edge,e) must be able to add the all the volumes together (use a variable to store the runningtotal-- this is what the sum from i=1 to n volume_i means) and then divide by 5 to findthe average volume,f) must use at least one repetition or selection structure,g) must be well-commented, correctly indented and readable,h) must compile and run,i) must be accompanied by a report of input and output used to test how well theprogram works,j) must be accompanied by a disk with the source (*.cpp) code on it. A large degree of scaffolding is present in the requirement description alone. Items b-e describe,recipe-fashioned, how to find the average of the volumes of a cube, given the area of a facesquare. A student who has comprehended the

Collection

1999 Annual Conference

Authors

Digendra K. Das

simulation assignments in this course.In the undergraduate level, simulation was introduced in such courses as Fluid Mechanics, HeatTransfer, and Thermodynamics. Students were required to complete two or three simulationassignments in addition to their usual hands-on laboratory assignments. A couple of typicalHeat Transfer and Fluid Mechanics models assigned to the students are briefly described below.Model 1:The objective of this model was to convert a ramp type input temperature distribution from theFahrenheit scale to the Celsius scale using the relationship: TC = (TF -32)(5/9) --------------(1)The simulation model was developed using the software SIMULINK and is shown in Fig. 1.The following data were used in the model

Collection

1999 Annual Conference

Authors

Walthea V. Yarbrough; Sarah J. Rajala; Richard L. Porter; Hugh Fuller; Laura Bottomley; Mary Clare Robbins

assessed in all courses using the PFEAS as well as otherinternal assessment instruments. The identified contents are listed in Table 1 and the deliverymethodologies in Table 2. Considerable experience was also obtained with the 1996 and 1997offering of E497F, although a laboratory component was not specifically a part of thosecourses, which offered considerable assessment data 7. Table 1. Identified Contents of the New Course engineering problem solving decision making ability to apply math and science oral communication data analysis and interpretation written communication multidisciplinary teamwork critical thinking probability and statistics

Collection

1999 Annual Conference

Authors

Laura A. Miller; Keith A. Miller; David J. Beebe

and clarify concepts and phrases that may not be familiar toall students. Ultimately the instructor administers quizzes and tests designed to assess studentunderstanding of the material. These educational techniques take place in a particular sequencedetermined by the instructor who decides which chapters of the text are most relevant for thecourse and in which order they should be taught. Therefore, our question is, “Can we design anALN that closely resembles this educational style?”There are two aspects of the GDLM to consider: 1) the modes in which students will interactwith each other and the instructor (modes of interaction), and 2) the on-line Mallard supplementwhich mimics and/or incorporates the instructional techniques of a

Collection

1999 Annual Conference

Authors

Daniel J. Tylavsky

receive a copy of the digital-design experiments discussed in this paper, send arequest to Dr.Dans@ieee.orgI. Hardware Laboratory ExperimentsThe objective of the hardware laboratory design is to start students with basic experiments thatemphasize common laboratory measuring and debugging techniques. Later more sophisticatedexperiments emphasize the design skills students have acquired in the lecture portion of the classas shown in Table 1.All of the hardware labs emphasize hardware realizations. Later labs include some use ofdigital-logic simulations to simulate circuits students build using TTL hardware. The objectiveof this mix is to allow students to discover, on their own, the role that simulation plays in theprototyping of complex

Collection

1999 Annual Conference

Authors

Donald Zinger

material.IntroductionConversion of power using electronics switching circuits has become widely accepted. Usingpower switches electrical energy can be converted efficiently using compact packages. Becauseof the increased acceptance of power electronic circuits, courses in power electronics have beenadded to the curriculum of many schools 1.Typically introductory power electronics courses are offered without a laboratory experience.Power electronic laboratories are often offered as an independent course. Such a course structureis implied with the power electronics curriculum suggested as a result of an NSF workshop onpower electronics 1. The majority of engineering students, however, are active, visual, andsensing learners 2,3 . A laboratory experience that would allow

Collection

1999 Annual Conference

Authors

John Parsons

our existing courses were changed to include biology. Thecurrent curriculum is given in Table 1. Some of the Biological and Agricultural Engineering(BAE) and engineering science electives by concentration area are given in Table 2. In addition,the students select from an approved list of courses of biological sciences for each concentrationarea. The remaining elective courses in the Humanities and Social Sciences areas are selectedfrom approved lists to meet the university’s general education requirements.Table 1. Biological Engineering Curriculum (128 credit hours). FRESHMAN YEARFall Semester Credits Spring Semester

Collection

1999 Annual Conference

Authors

J. A. Bragg; Stephen P. DeWeerth; Clinton D. Knight

nature of educational software gives it great potential as a tool to helpstudents gain intuition about a topic. After presenting a typical engineering scenario in asimple, graphical manner, a program could allow a student to change parameters and seeimmediately how their changes affect the system. Far more than a static picture or ananimation, educational software offers the possibility of a truly interactive learningenvironment.II. Course ContentJava Programming for Engineers has two primary student-produced components: (1) aseries of programming assignments that illustrate the capabilities of the Java language,and (2) a design project that applies Java to computer-enhanced education. We focus thecourse material on Java capabilities—object

Collection

1999 Annual Conference

Authors

K. A. Korzeniowski; J. L. Rice

. IntroductionThis paper describes how an automatable platform, the Khepera robot, has been integrated into partsof the curriculum at the United States Naval Academy (USNA). The Khepera robot is a smallmicroprocessor driven device.1 The device is shown in Figure 1. It is a convenient platform forinvestigating each element of an autonomous system; namely data acquisition, signal conditioningand microprocessor control. This device is flexible enough to be used for a full range of purposes,from pre-college recruiting to laboratory design projects.This paper discusses how the Khepera robot is used in engineering recruiting and integrated intodesign projects. Code fragments are offered in this paper. The code is written primarily in Procommscript.2 This enables

Collection

1999 Annual Conference

Authors

Sandra D. Yeigh

we run water through it? This problem and others like it arepresented in Consider a Spherical Cow 1. How much natural gas is needed to heat a 1700 sq-fthouse? Do you know how to read your electric bill? How much energy is saved if everyone inthe United States stops driving her/his personal automobile for just one day? Consequently, towhat extent can greenhouse gases be reduced if all personal automobiles are parked for just oneday in the U.S.? A common sense approach with an order of magnitude estimation skill cananswer the above questions. First-year students understand risk and the environment, yet fewunderstand the connection between energy and the environment. By posing questions that linkenergy and the environment, students can be

Collection

1999 Annual Conference

Authors

Akihiko Kumagai; Mukasa Ssemakula

’ shop floor experience, we have conducted the followingactivities to develop this kinematic course.1. Undertook an intensive immersion in the functions and activities of the candidates on the shop floor at the CAT equivalent to a full two weeks. This familiarized developers with the typical manufacturing roles and assignments of candidates.2. Identified relevant shop floor applications at the CAT to be used for launching the learning activities undertaken in each module.3. Defined detailed learning and performance objectives for each module in consultation with the Coalition’s instructional designers and multimedia developers.4. Identified the core resource (textbook) for candidates to use together with the

Collection

1999 Annual Conference

Authors

Gloria Rogers; Julia Williams

to document student outcomes in engineeringeducation has been driven by the adoption of revised engineering accreditation criteria,Engineering Criteria 2000 (EC2000).1 In Criteria 3, portfolios are mentioned as one wayto document and assess student outcomes. In a white paper issued in 1996 by the JointTask Force on Engineering Education Assessment, portfolios were referred to as beingcorrelated with nine of the eleven desired attributes of engineering graduates identified inEC2000.2A portfolio has been described as a "purposeful collection of student work that exhibitsthe student's efforts, progress, and achievements. The collection must include studentparticipation in selecting contents, the criteria for selection, the criteria for judging

Collection

1999 Annual Conference

Authors

Emma Torbert; Eleanor Abrams; David Bourgeois; Carmela Amato-Wierda; Anneliese Mueller; Christopher F. Bauer

increasing amount of chemistry involved in numerous recent research and technologydevelopments. Many of these developments involve interdisciplinary teams of scientists andengineers working synergistically. For example, the manufacturing of integrated circuits in thesemiconductor industry is a series of chemical deposition and etching reactions.1 Biosensors relyon immobilized proteins as part of the sensing mechanism that detects the protein’s substrate.These proteins are immobilized on synthetic lipid membranes.2 Mechanical and electronicdevices are being designed at the molecular level. These miniature microelectromechanicalsystems are known as MEMS and they are manufactured using semiconductor devicefabrication. The acceleration sensor used to

Collection

1999 Annual Conference

Authors

William S. Janna; A. Renner

4.18.1Subscripts 1 = source of radiation 2 = receiver of radiation s = area on hemisphere surface b = area on base of hemisphere Page 4.18.2I. IntroductionMany problems that today are easily solved with a calculator were at one time ratherdifficult to complete. The calculation phase of the solution method was verytedious, involving the use of a slide rule or a mainframe computer. Consequently,alternative methods of obtaining a solution to a particular problem were developed.Graphical methods, for example, were developed to a high degree in a number ofareas as an alternative or supplement to the calculation method. There are graphicalprocedures for addition, subtraction, multiplication and division1

Collection

1999 Annual Conference

Authors

Ray Bachnak

adjust VREF/2 to get the exact range required – use a voltage divider with a variable resistor. À Should use LEDs to display the digital output.Description of the CircuitA circuit that satisfies the design requirements is shown in Fig. 1. The applied input is controlledthrough a variable resistor connected to a voltage follower that electrically isolates the input sidefrom the rest of the circuit. The upper diode will be ON if the voltage at its lower end is greaterthan 5.7 V. This arrangement guarantees that the input voltage to pin 6 of the ADC0804 neverexceeds the maximum allowed value of VCC + 0.3 V. To achieve good results, the referencevoltage at the pin labeled VREF is adjustable through the use of a variable resistor

Collection

1999 Annual Conference

Authors

Christopher Hall

internal compo-nents of the satellite, solar radiation pressure, atmospheric drag, and other forces. The study ofsatellite dynamics and control is typically divided into astrodynamics and attitude dynamics, withadditional applied material on spacecraft design.Kepler (1571–1630) and Newton (1642–1727) laid the foundations for the subject of astrodynam-ics as it is taught today. Kepler’s three laws were formulated from curve-fitting of the carefullyrecorded astronomical observations of Tycho Brahe (1546–1601): 1. The orbit of each planet is an ellipse with the Sun at one focus. Page 4.355.1 2. The line joining the planet to the Sun sweeps out

Collection

1999 Annual Conference

Authors

Robert P. Hesketh; Stephanie Farrell; C. Stewart Slater

this project, several educational objectives are met: to develop creative andcritical thinking, to introduce design principles, to provide hands on experience, to developteamwork and communication skills, and to stimulate enthusiasm for engineering.IntroductionRowan University is pioneering a progressive and innovative Engineering program that usesinnovative methods of teaching and learning to prepare students better for a rapidly changing andhighly competitive marketplace, as recommended by ASEE [1]. Key features of the programinclude: (i) multidisciplinary education through collaborative laboratory and course work; (ii)teamwork as the necessary framework for solving complex problems; (iii) incorporation of state-of-the-art technologies

Collection

1999 Annual Conference

Authors

Leonard Sokoloff

) 0V (OFF) Ve(max) (b) Page 4.356.3 Fig. 1 Closed Loop Control SystemThe Controller Output is often subjected to signal conditioning in order to provide theproper signal level or power as required by the Actuator. If the Actuator is a motor, thenthe signal conditioning block may be a power amplifier that generates the appropriatepower to drive the motor.The use of negative feedback is the key to the proper operation of a control system.Consider the operation of the ON/OFF control system depicted in Fig. 1b. The object ofthe temperature control

Collection

1999 Annual Conference

Authors

Michio Tsutsui

increased demand for English-Japanese bilinguals is particularlynoticeable. For example, Table 1 shows the number of companies that placed positionannouncements for English-Japanese bilingual engineers and scientists in the Nikkei PlacementGuide International (a yearly recruitment publication) each year for the past four years.1 Table 1: Companies recruiting bilingual engineers and scientistsYear Number of companies that recruit Place of employment bilingual engineers and scientists (total number of companies listed) Japan US Others1998 86 (86) 84 23 151997 94 (99) 94

Collection

1999 Annual Conference

Authors

Jerry A. Caskey

formaterial balances has been Elementary Principles of Chemical Processes by Felder andRousseau. The CD-ROM developed from the Marathon Sat Gas plant contains information forcalculating material balances for the following situations: 1. Distillation column 2. Gas absorption column 3. Three-phase water separatorThe distillation column and the gas absorption column problem sets are reasonablystraightforward; however, each operation contains 11 components including water and hydrogensulfide. In addition to material balance calculations, each problem set includes information toinitiate class discussion on corrosion, H2S removal, H2O removal, H2O solubility, alternateprocesses, etc. The CD-ROM shows pictures of

Collection

1999 Annual Conference

Authors

Asad Yousuf

500 -700nm. The wavelength of the specific light source that is diffracted is determined by thefollowing phase matching condition: λ = ∆n α va/fa (1)The ATOF parameters referenced in Eq. (1) are defined below: λ = Wavelength ∆n = Refractive index va = Velocity of the acoustic wave fa = Frequency of the acoustic wave α = Geometry of CrystalThe process of image acquisition at different frequencies is controlled by the LabView. Initiallythe frequency is set from the front panel and the user can click on run camera from the frontpanel to acquire an image at this frequency and save the image in TIFF format. This process isrepeated

Collection

1999 Annual Conference

Authors

Venkateswaran Nallaperumal; S. A. Chickamenahalli

the motor torque and power of the lathe with respect to the depth of cut in real time and studyof these for different materials and different tools are goals of the Labview application.The development of the project is described and the results from the Lathe instrumentation areenclosed and discussed. Inquiry based and advanced features associated with the project thatcould enable examining student understanding of data acquisition, interfacing, sensing andprogramming at the end of the project are highlighted. Utilization of the project as part of the ETand Manufacturing curriculum is highlighted. The scope of future work is presented.1. IntroductionPC based instrumentation has been widely accepted as a very effective means of measuring

Collection

1999 Annual Conference

Authors

Timothy A. Paull; J. Michael Jacob; Robert J. Herrick

of problems and entered the solutions, the work wasimmediately evaluated and the results printed on the student’s screen. Since the numbersin the problems are variable, the student was able to try other versions of the missedproblem by requesting a new set of homework problems. Each time, the server created anew set of problems with new solutions, allowing drill and mastery learning. Final scoreswere submitted to the course instructor.IV. ImplementationIV. i. SoftwareThe software used for this project was Test Pilot; a Java based authoring programdeveloped at Purdue University. Figure 1 shows the opening page for the Test Pilotsoftware. (Note: Test Pilot is currently in use at over 175 institutions worldwide. Theyrange from commercial use

Collection

1999 Annual Conference

Authors

Robert H. Bond

, or some combination of all ofthese and more. This paper describes what is meant by each of the above, and then looks at howeach of the above topics are presented in the design course.II. Project DefinitionThe question that must be answered during this phase of the design project is "How will weknow when we are done?" A very good reference book for this and other aspects of projectplanning and execution is "Getting the Job Done" 1. Success in this phase of the project will notinsure the success of the project, but doing a poor job will insure some degree of failure or atleast much wasted effort. This process takes much time and energy and is typically thought ofas non productive work by the students and many practicing engineers. A primary