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1999 Annual Conference

Authors

John K. Estell

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1999 Annual Conference

Authors

William E. DeWitt; William J. Hutzel; Timothy L. Skvarenina

electricalsystems.Introduction Facilities engineering is becoming an important career option for students in the PurdueSchool of Technology. The continuing boom in industrial and commercial construction, alongwith an increased emphasis on energy efficiency, has helped create a strong demand fortechnicians and engineers who manage mechanical and electrical equipment in moderncommercial buildings. In fact, the Office of Manpower Studies within the School of Technologyprojects that facilities engineering will be one of the fastest growing technical careers over thenext ten years.1 Figure 1 illustrates the technical skills needed by today’s facility engineer.2 Althoughmechanical and electrical skills are essential, the distinction between the two is

Collection

1999 Annual Conference

Authors

James Pearson

beenrequired for all engineering students. Since 1985, most of these projects have been incooperation with regional industries while the remaining ones have been JBU projects.The faculty felt that more could be accomplished in these projects if the students hadprevious experience in creative thinking, project planning, keeping a log book,searching for parts, ordering parts, meeting project schedules and in the generalfrustrations of the design process.An ABET visitor suggested that it would be desirable to have some team designexperiences in the design emphasis at JBU. In response, three things have been done:1. Added two team design experiences to the freshman course, Engineering Concepts and Design.2. Added one team design experience to the

Collection

1999 Annual Conference

Authors

John G. Nee

part of the assessment effort.Students take the exam on a voluntary basis or it can be part of a senior level requirement.Individual scores are provided only to the candidate, however, the faculty advisor will receive astatistical report that includes high/low, mean score and score distribution. Reports also includeinformation regarding the distribution of scores within the major topic areas as well. The examhas undergone revisions and modifications over the years with the last major revision completedin the fall of 1996.The seven major concept areas tested include: 1) mathematics, 2) materials, 3) design/graphics,4) manufacturing processes, 5) management/economics, 6) quality control, and 7) computerapplications. Each of these seven concept

Collection

1999 Annual Conference

Authors

Tom Christensen; R. M. Seymour; Kim McKeage; Deborah Skinner; Darrell Donahue

theirdesign project from the marketing perspective.BackgroundTwo major dynamics of business and manufacturing are concurrent engineering and customer-centered product development. Customer focus is perceived by some as the most importantdeterminant of business success, and engineers must be prepared to function in the design processaccordingly.1 Concurrent engineering is a recent strategy for managing customer-centered designprocesses that has been acknowledged by many for its successes.The basic principles of concurrent engineering are 1) integrated product development; 2) inclusionof all relevant perspectives on the product during design and development; 3) global integration ofall stakeholder needs in the design process. These concepts combine

Collection

1999 Annual Conference

Authors

John Spinelli; Cherrice Traver

Collection

1999 Annual Conference

Authors

Sohail Anwar; Frances Winsor

- mechanical Project Design Theory & Instrumentation mechanical Project Design 3 3 3IET 216 Production Design IET 105 Economics of EMET 321W Electrical IET 105 Economics ofLab 2 Industry 2 Machines 3 Industry 2MATH 250 Calculus & S/H/A Social Science/ HLED Health Education 1 S/H/A Social Science/Differential Equations 3 Humanities/Arts Elective 3 Humanities/Arts Elective 3MET 210W Product Design3 S/H/A Social Science/ MATH 250 Calculus & S/H/A Social Science/ Humanities

Collection

1999 Annual Conference

Authors

Sohail Anwar; Frances Winsor

of EMET 321W Electrical IET 105 Economics ofLab 2 Industry 2 Machines 3 Industry 2MATH 250 Calculus & S/H/A Social Science/ HLED Health Education 1 S/H/A Social Science/Differential Equations 3 Humanities/Arts Elective 3 Humanities/Arts Elective 3MET 210W Product Design3 S/H/A Social Science/ MATH 250 Calculus & S/H/A Social Science/ Humanities/Arts Elective 3 Differential Equations 3 Humanities/Arts Elective 3S/H/A Social Science/ ESACT Physical S/H/A Social Science/Humanities/Arts Elective 3

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

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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