Conference Session

ERM Potpourri I

Collection

2007 Annual Conference & Exposition

Authors

Reem Nasr, Boston University; Steven Hall, Massachusetts Institute of Technology; Peter Garik, Boston University

Tagged Divisions

Educational Research and Methods

2In fact, the domain of integration should be the domain for which both g(t − τ ) and u(τ ) arenon-zero.Participant S59’s response could better illustrate this participant reasoning. Participant S59obtained the same expression that participants S02 and S24 obtained for y(t), but his writtensolution was more elaborate and indicative of the reasoning underlying his response. He wrote: ∞ y(t) = g(t − τ )u(τ ) dτ −∞ −1 2 = g(t − τ )u(τ ) dτ + g(t − τ )u(τ ) dτ −∞ −1

Conference Session

What's New in Dynamics?

Collection

2007 Annual Conference & Exposition

Authors

Arnaldo Mazzei, Kettering University; Richard Scott, University of Michigan

Tagged Divisions

Mechanical Engineering

torsional spring and torsional damper atthe base is given below (see FIGURE 1). l ml 2s%% - Cs% - Gs / mg sin(s ) ? 0 2 (1) s l Rigid rod – Moment of g inertia about pin: ml 2 3 Torsional spring

Collection

2007 Pacific Southwest Section Meeting

Authors

Debra Larson

questions.The conclusions drawn from this trial run of the initial version were: • The questionnaire functioned as was intended, and with some minor refinements will be even better. • The plot’s scale and the demarcation point between cells were inappropriate and yielded too generous interpretations of style.This initial trial also provided the impetus to create and implement a student version.Second Version(s) of Questionnaire and ResultsA revised version of the instructor self-assessment questionnaire was produced shortly after ananalysis of the ETW respondents. Questions 1, 2, 6, 15, and 17 were edited to clarify the intentof each question. Additional, quantitative type information, was provided to help respondentsdistinguish

Collection

2007 Spring ASEE Middle Atlantic Section Conference

Authors

E.N. Bart; Joseph Kisutcza

systems involved were extremely dilute.The rigorous equations were known for some time and one of these is as follows: y2 V dy Z= ∫ (1) ky a S y1 (1 − y )( y − y i ) (1 − y )ilmThree additional equations could be written to accomplish the same result. Z is thenecessary height of packing. Since some of the terms did not change greatly in a dilutesystem it was common practice to remove some of these from under the integral sign andmaking use of an average value between the top of the column and the bottom. The

Conference Session

Novel Applications of Computers/Software in Energy Education

Collection

2007 Annual Conference & Exposition

Authors

Carl Spezia, Southern Illinois University-Carbondale

Tagged Divisions

Energy Conversion and Conservation

. The first topic is steady-state three-phase inductionmotor theory. The presented motor theory is based on the equivalent circuit model.5 Thismodel requires rotor and stator resistances, rotor and stator leakage reactance, and the motormagnetization reactance parameters. Locked-rotor and no-load tests find these parameters.Solving the equivalent circuit model gives the rotor and stator currents as a function of motorslip, s. After rotor current is obtained, the rotor developed power and motors losses can be foundfor any operating point. The tutorial introduces the motor developed torque equation anddemonstrates how to plot the motor torque-speed curve from the developed power found fromthe equivalent circuit.Machine load factor and efficiency

Conference Session

Issues of Diversity

Collection

2007 Annual Conference & Exposition

Authors

Fonda Swimmer, Northern Arizona University; Karen Jarratt-Ziemski, Ft. Lewis College

Tagged Divisions

Women in Engineering

relevance of this for female recruitment and retention towards STEM disciplines will also bediscussed. In addition, practical information regarding the scoping, development, trial and error,and full implementation will be discussed.In addition, this paper will address possibilities for the future of recruitment and retention offemale engineering and science students at Northern Arizona University and the sustainability ofthe existing program.IntroductionDespite two decades of advancement of women in the areas of science, technology, engineeringand math (STEM), women are still sorely underrepresented both in academia and in industrywhen compared to their male counterparts. Women in science and engineering (S & E) haveexperienced some gains in

Conference Session

Thermodynamics and Fluid Mechanics Instruction

Collection

2007 Annual Conference & Exposition

Authors

Stephen McClain, Baylor University; Christopher Smitherman, University of Alabama-Birmingham

Tagged Divisions

Mechanical Engineering

Thermodynamic properties of PropaneSteamProps.mcd Thermodynamic properties of water and moist airPhase Change SubstancesA consistent naming scheme was chosen for the phase change fluids. The function calls for R-22, ammonia, and propane begin with the variable to be determined, followed by an underscore,followed by the independent property(s), followed by a fluid identifier (R22, NH3, or C3H8),followed finally by the values of the independent property(s) in parenthesis. Figure 1 presentsthe format of function calls for the phase change substances. The functions require that allindependent properties be entered with the appropriate absolute units. a_bc XX (b, c) Returned

Conference Session

Curricular Issues in Computer-Oriented Programs

Collection

2007 Annual Conference & Exposition

Authors

Azzedine Lansari, Zayed University; Akram Al-Rawi, Zayed University; Faouzi Bouslama, Université Laval

Tagged Divisions

Information Systems

Page 12.275.8track of their learning experiences, faculty members use the electronic portfolio as a tool tomeasure the level of student understanding. The electronic portfolio can also provide importantinformation on the effective implementation of key concepts in the overall IS curriculum. Figure1 shows the components that are used to monitor the IS program effectiveness. Z U L e a r n in g O u tc o m e s C IS M a jo r C ritic a l T h in k in g a n d R e a s o n in g (C T R ) P ro b le m Id e n tific a tio n a n d A n a ly s is G lo b a l A w a re n e s s (G A ) ( P IA ) In fo rm a tio n L ite ra c y a n

Conference Session

Marketing Engineering to Minority Students

Collection

2007 Annual Conference & Exposition

Authors

Linda Barrington, University of Massachusetts-Lowell; John Duffy, University of Massachusetts-Lowell

Tagged Divisions

Minorities in Engineering

the SLICE project (Service-Learning Integrated throughout a College of Engineering), coordinator of the graduate program in solar engineering, and coordinator of the Village Empowerment Project. Page 12.298.1© American Society for Engineering Education, 2007 Attracting Underrepresented Groups to Engineering with Service-LearningAbstractThe University of Massachusetts Lowell College of Engineering has an objective to integrateservice-learning into core required courses in every department so every student every semesterhas at least one course with S-L (SLICE: Service-Learning Integrated

Collection

2007 St.Lawrence Section Meeting

Authors

R. Dennis Foster

international role in light of their nation‟s national policies. A Canadian professionalengineer of the year 2000, should be prepared [in 1982], to be capable of living his or her lifegoals as a world citizen.” I suggested then, that an Administrator of higher education planningfor the development of an engineering college to serve its nation‟s goals will need to consider 1)regional & national goals, 2) personal life goals, 3) professional practice goals and 4)international citizenship goals. Before the final submission of this hypothetical model I receiveda copy of a real model for the establishment of a Faculty of Engineering at the University ofVictoria. It was interesting to note that goals 1 and 3 were considered, 2 and 4 were not.The past two

Conference Session

Teaching Ethics

Collection

2007 Annual Conference & Exposition

Authors

Cynthia Finelli, University of Michigan; Trevor Harding, California Polytechnic State University; Donald Carpenter, Lawrence Technological University; Matthew Mayhew, New York University

Tagged Divisions

Engineering Ethics

in a week-long, NSF-sponsored workshop on Conducting Rigorous Research in Engineering Education and was an invited participant in the NSF-sponsored Engineering Education Research Colloquy Series.Trevor Harding, California Polytechnic State University Dr. Trevor S. Harding is Associate Professor of Materials Engineering at California Polytechnic State University where he teaches courses in introductory materials engineering, structural materials, and amorphous materials. Previously, he was Associate Professor of Industrial and Manufacturing Engineering at Kettering University. Dr. Harding earned B.S. degrees in Aerospace Engineering and Materials Science and Engineering (1995), an M.S. degree

Conference Session

Innovative Mechanics Education Programs and Projects

Collection

2007 Annual Conference & Exposition

Authors

Pramod Chaphalkar, Grand Valley State University; David Blekhman, California State University Los Angeles

Tagged Divisions

Mechanics

an extension of the 1-D Bar elementin local coordinates (Figure 5).Çk 0 /k 0 Ê u ix Û Ê f ix ÛÈ0 Í Í Í ÍÈ 0 0 0ÙÙ Í uiy Í Í f iy ÍÈ/ k Ë Ü?Ë Ü 0 k 0Ù Íu jx Í Í f jx ÍÈ ÙÉ0 0 0 0Ú ÍÌu jy ÍÝ ÍÌ f jy ÍÝ Page 12.966.7Figure 5. 2-D Truss element as 1-D Bar element Figure 6. Trigonometric transformationsThe stiffness matrix in the global coordinates is obtained with trigonometric transformations(Figure 6)}U ? ]T_}u and }F ? ]T_ }fwhere the transformation matrix [T] can be shown to be Çcos s / sin s

Collection

2007 St.Lawrence Section Meeting

Authors

Rei Marzoughi

picture reflects engineering curriculums that are highlyspecialized with lack of reference to context2.The implications of these findings are far reaching. Do the results imply that we simply have notfaced the problem of how to get the technical core of the curriculum to work synergistically withthe complementary studies component? What does this mean with regards to the ability of ourprofession to protect the public interest? The purpose of my paper is to interpret my ownengineering education through the use of the two questions posed earlier, and in relation to thefindings of the study described above.The Engineering and Society ProgramEngineering and Society (E&S) is a five year program in which students partake in the exactsame courses as

Conference Session

Innovative K-12 Engineering Programs

Collection

2007 Annual Conference & Exposition

Authors

William Lee, University of South Florida; Linda Nook, Riverview High School; William Massolio, Riverview High School; Robert Liming, Riverview High School; Nancy Smith, Riverview High School; Susan Pantling, Riverview High School; Rodeny Jones, Riverview High School; Jan Davis, RIverview High School; Judy Meksraitis, Riverview High School; Effa Beauette, Riverview High School

Tagged Divisions

K-12 & Pre-College Engineering

professional societies (including the American Societyfor Engineering Education ) have also stressed the value of the liberal arts (see note 2) part ofundergraduate engineering education. Kranzberg=s 1993 article1 presents a good overview ofthis subject as it relates to engineering. Dr. Shirley Jackson=s 2001 speech2 is another goodsummary along with a document produced by the Liberal Education Division of ASEE3. TheRoyal Academy of Engineering in Great Britain has also addressed the issue of involving the artsin engineering4.Various innovative approaches have been proposed and implemented to allow the engineeringstudent more exploration in the liberal arts (for example, see the summary by Florman5).Examples of undergraduate academic programs which

Conference Session

Mechanics Division Poster Session

Collection

2007 Annual Conference & Exposition

Authors

Ing-Chang Jong, University of Arkansas; Joseph Rencis, University of Arkansas

Tagged Divisions

Mechanics

- > x / xK @2 / > x / xw @4 6 EI 2 EI 6 EI 2 EI 24 EI w1 / w0 (10) m0 / > x / xw @ - 5 > x / xm > 3 120 EI ( L / x w ) 6 EIBy letting x = L in Eqs. (9) and (10), we obtain the model formulas for the slope s b and deflec-tion yb at the right end b of the beam ab as follows: Va L2 M a L s b ? sa - - / P ( L / xP ) 2

Conference Session

Perspectives for Women Faculty

Collection

2007 Annual Conference & Exposition

Authors

Nicole Hawkes, WiSE / University of Southern California; Jean Morrison, University of Southern California; Cauligi Raghavendra, University of Southern California

Tagged Divisions

Women in Engineering

. Through an analysis of the WiSE Program at USC,we hope to present a model from which others can draw on to tackle the same issues at their owninstitutions.IntroductionIn 2000, the University of Southern California (USC) launched its Women in Science andEngineering (WiSE) Program. Funded by a $20 million gift to the endowment, the goal of theprogram is to increase the number of tenured and tenure-track women faculty in science andengineering (S&E). Spearheaded by an energetic group of tenured faculty, the programs andactivities of the WiSE program have been designed to address a broad range of issues that affectthe representation of women in S&E.Operating from the Office of the Provost, WiSE works with deans and departments in the

Conference Session

Mechanical Engineering Technology Curriculum Innovations

Collection

2007 Annual Conference & Exposition

Authors

Shannon Sweeney, Pennsylvania State University-Erie; Richard Englund, Pennsylvania State University-Erie; Robert Edwards, Pennsylvania State University-Erie

Tagged Divisions

Engineering Technology

were 46 juniors surveyed the first year. Page 12.549.3There were 38 seniors and 48 juniors surveyed the second year.Assessment ResultsThe following table shows a summary of the assessment results. There are many ways that thedata and numbers could be analyzed and presented. The authors have chosen a weightedresponse based on assigned weights for each response. For reference, the table shows thepercentage response for each administration of the quiz. Percentage Response Weighted Response Question Response Response Jr.'s Jr.'s Sr.'s Jr.'s Jr.'s Sr.'s No. Choice Weight FA06 FA05 FA06 FA06

Conference Session

Technology Integration in the Classroom for Manufacturing I

Collection

2007 Annual Conference & Exposition

Authors

Kurt Rosentrater, USDA-ARS; Jerry Visser, South Dakota State University

Tagged Divisions

Manufacturing

* where:  − A1(T − T *)  ηo = D1 exp    A2 + (T − T *) Page 12.1279.5where: η is the viscosity (Pa.s), γ is the shear rate (1/s), T is the temperature (K), T* is D2+D3.P(K), P is the pressure (Pa), A2 is A2*+D3.P (K), while n, τ*, D1, D2, D3, A1, and A2* areregression coefficients based upon empirical data. For the base polypropylene used in this study,the values of these coefficients were, respectively, 0.2751 (-), 24200 (Pa.s), 4.66x1012 (Pa.s),263.15 (K), 0 (K/Pa), 26.12 (-), and 51.6 (K).Using

Conference Session

IE Program Design I

Collection

2007 Annual Conference & Exposition

Authors

Leslie Potter, Iowa State University; K. Jo Min, Iowa State University; Frank Peters, Iowa State University

Tagged Divisions

Industrial Engineering

(namely students and industrial partner participants) are alsoidentified. In this paper, we highlight the impact of improvement efforts on outcome items (h)and (c), and begin discussions about results for outcome item (j).Over the past seven semesters, the assessment schedule within the capstone design course haspurposely repeated several outcomes. This schedule is seen in Table 1. Semester Outcome Items Assessed F'03 c, e, f, g S'04 c, e, f, g F'04 d, g, h, p S'05 h, i, j F'05 c, h, i, j S'06 f, i, j, n F'06 c, g, h, i, jTable 1. Outcome assessment schedule in capstone design course.Rubric data is gathered each semester for the assigned outcomes within

Conference Session

Technology Integration in the Classroom for Manufacturing I

Collection

2007 Annual Conference & Exposition

Authors

Yongjin Kwon, Drexel University; Shreepud Rauniar, Drexel University; Richard Chiou, Drexel University; Horacio Sosa, Drexel University

Tagged Divisions

Manufacturing

directly over the conveyor areconsidered as two horizontal planes. These two planes are considered parallel, hence any point Page 12.1236.4on the image plane (denoted as ai and bi in Figure 3) can be mapped into the robot plane. Figure 2. Snapshot of the API developed for EQM. By operating individual values of ai and bi with the scale factors Sx and Sy, the imagecoordinates (pixel coordinates) can be translated into the robot coordinates using the followingfunctional relationship40: f : Pi 5 R i +S i © v i +i i , (1)where Pi = the robot state vector

Collection

2007 ASEE Midwest Section Conference

Authors

Joseph J. Rencis; Sachin Terdalkar

stress S max in Figure 2a at a local stress-riser in the truss element isdefined as follows: Proceedings of the 2007 Midwest Section Conference of the American Society for Engineering Education 4S max = K t S ave (1)where Save is the uniform normal stress in the truss element at the location of the stress-riser and K t is the theoretical stress concentration factor (based on theoretical elastic,homogenous, isotropic material). The application of the theoretical stress concentration factor K t for static loadingdepends on the material type as follows:• Ductile Material ( ε f

Conference Session

What's New in Dynamics?

Collection

2007 Annual Conference & Exposition

Authors

Jiang Zhou; Paul Corder, Lamar University; Kendrick Aung, Lamar University

Tagged Divisions

Mechanical Engineering

find the numerical solution directly from the aboveequation and initial conditions. Matlab code using Symbolic Toolbox and the response plot areshown in Figure 2. % Solve the ode and assign the solution to variable 'x' x = dsolve('D2x + 2*Dx + 5*x = 3','Dx(0) = 0','x(0) = 0','t') % Plot the response from 0 to 5 seconds ezplot(x, [0,7]) % Assign labels to axes and a title to the plot xlabel('Time (s)') ylabel('Response by dsolve') % Plot gridlines grid on % Define axis axis([0 7 0 0.8]); Figure 2 - Matlab code using Symbolic Toolbox and response plotingTwo approaches are introduced to the students to find the solution of an ODE in Simulink. Thefirst one is based on

Conference Session

Innovations in Mechanical Engineering Education Poster Session

Collection

2007 Annual Conference & Exposition

Authors

Kenneth Miller, Saint Cloud State University

Tagged Divisions

Mechanical Engineering

daemon,# identified by the full daemon path listed below. Paste (Ctrl_v) the saved TEST-Code on this I/O Panel,# click Load and then Super-Calculate to recover the solution. You can email a solution in this manner.############################################################################################## Daemon Path: Test>Daemons>Systems>Open>SteadyState>Specific>RefrigCycle>PC-Model; Version: v-8.0bj04##--------------------Start of TEST-Codes----------------------------------------------------------------------------- States { State-1: H2O; Given: { p1= 12.5 MPa; T1= 550 deg-C; Vel1= 0.0 m/s; z1= 0.0 m; mdot1= 24.0 kg/s; }\ State-2: H2O; Given: { p2= 20.0 kPa; s2= "s1

Conference Session

Special Session on Fixed-Point Education

Collection

2007 Annual Conference & Exposition

Authors

Cameron Wright, University of Wyoming; Thad Welch, Boise State University; Michael Morrow, University of Wisconsin-Madison; Gerald Vineyard, U.S. Naval Academy

Tagged Divisions

Computers in Education

new winDSK6 module, calledCommFSK, which includes the following features: • generation of phase continuous and phase discontinuous FSK with adjustable data rate; • control of the modulated signal’s amplitude, center frequency, and frequency deviation; • source data selection from a pattern of alternating 0’s and 1’s, several PN-sequences, random data, all 0’s, all 1’s, ASCII text messages from keyboard, or data from files; • optional built-in or user-defined asynchronous communications protocol; • user defined FIR-based filtering of the resulting FSK signal; and, • full integration into the winDSK6 program. Page

Conference Session

Undergraduate Spacecraft Design II

Collection

2007 Annual Conference & Exposition

Authors

Charles Bittle, University of North Texas; Mitty Plummer, University of North Texas

Tagged Divisions

Aerospace

search, acquisition, track andtarget subsystems. In the early 1970’s, the first author was evolved with designing, building andinstalling successful ground based missile locating and tracking systems for the Department ofDefense. Funds for additional ground based missile locating and tracking systems were notallocated because a decision was made to deploy satellite missile defense systems. The 1972Antiballistic Missile (ABM) Treaty with the Soviet Union delayed development of missiledefense systems by the United States (U.S.). Now, the U.S. has a National Missile Defense(NMD) program. The most pressing concern today is the feasibility of an attack by NorthKorean ballistic missiles bearing nuclear or biological weapons. Hypothesizing that a

Conference Session

Creating 'Materials' Awareness

Collection

2007 Annual Conference & Exposition

Authors

Gukan Rajaram, North Carolina A&T State University; Devdas Pai, North Carolina A&T State University; Jagannathan Sankar, North Carolina A&T State University

Tagged Divisions

Materials

AGREE NOT SURE DISAGREE DISAGREE BEFORE AGREE STRONGLY BEFORE AGREE STRONGLY TODAY TODAY The activities on nanoscience and engineering made N a n o t e c h n o lo g y p re s e n t a t io n me more confident that I can do science/engineering 8 10

Collection

2007 ASEE Midwest Section Conference

Authors

Meader Woo; John M. Watkins

controller. The continuous time plant is given by 100 G ( s) = . ( s + 1)( s − 1)The system is sampled at 0.01 seconds. Because the system is unstable, an initial controller isneeded to stabilize the system. The following PID controller stabilizes the system. 12.1187( z − 0.99)( z − 0.9613) D( z ) = z ( z − 1) Now using Simulink we can connect this system to the DSA block as shown in Figure 2. Proceedings of the 2007 Midwest Section Conference of the American

Conference Session

Gender and Accessibility Issues in K-12 Engineering Education

Collection

2007 Annual Conference & Exposition

Authors

Linda Hirsch, New Jersey Institute of Technology; John Carpinelli, New Jersey Institute of Technology; Howard Kimmel, New Jersey Institute of Technology; Ronald Rockland, New Jersey Institute of Technology; Joel Bloom, New Jersey Institute of Technology

Tagged Divisions

K-12 & Pre-College Engineering

AC 2007-392: THE DIFFERENTIAL EFFECTS OF FEMALE ONLY VS. CO-EDENRICHMENT PROGRAMS ON MIDDLE SCHOOL STUDENTS' ATTITUDESTOWARD SCIENCE, MATHEMATICS AND ENGINEERINGLinda Hirsch, New Jersey Institute of Technology DR. LINDA S. HIRSCH is the Program Evaluator in the Center for Pre-College programs. She has a doctoral degree in educational psychology with a specialty in psychometrics and a Masters degree in statistics. She has been involved in all aspects of educational and psychological research for 15 years. Dr. Hirsch has extensive experience conducting longitudinal research studies and is proficient in database management, experimental design, instrument development, psychometrics and

Conference Session

Graphics and Visualization

Collection

2007 Annual Conference & Exposition

Authors

La Verne Abe Harris, Arizona State University; Frederick Meyers, The Ohio State University

Tagged Divisions

Engineering Design Graphics

designed. CAD, which is the use of a wide-range of computer-based tools fordesigning and developing products, is an important geometry-authoring tool for the productlifecycle management. It ranges from 2D vector-based drafting systems to 3D parametric surfaceand solid design modeling systems. In the product lifecycle a physical prototype can be producedfrom drawings or from a computer-aided manufacturing system (CAM). The prototype is thentested for design compliance and produced for mass production in the manufacturing division.When Internet technologies were adopted in the engineering design industry in the 1990's, workin engineering design was restructured. Collaboration is the trend of today in order to benefitboth higher education and

Conference Session

Undergraduate Spacecraft Design II

Collection

2007 Annual Conference & Exposition

Authors

Lawrence Boyer, St. Louis University; Krishnaswamy Ravindra, St. Louis University; John George, St. Louis University; Kyle Mitchell, St. Louis University

Tagged Divisions

Aerospace

during burnsc = total distance covered during coasting∆s = distance covered during one iteration of coasting portionΣ∆s = total distance covered during coastingt/c = thickness ratio of finsV = velocityρ = air density, sea levelIntroduction:Most aerospace engineering curriculums contain an introductory course that introduces a Page 12.897.2sophomore student to the world of aerospace. Generally this course tends to be a broadintroduction to terminology, basic aerodynamics, performance, propulsion and structures. Insome programs, a hands-on project is assigned to the students to make the course moreinteresting and provide