Conference Session

Student Learning Techniques & Practices in Engineering Technology

Collection

2008 Annual Conference & Exposition

Authors

B. Sridhara, Middle Tennessee State University; Joseph Prince, Middle Tennessee State University

Tagged Divisions

Engineering Technology

from the higher to the lower points(Figure 1) in the least time.1 Figure 1. A curve along which a particle is falling under the action of gravity The time required to travel from point P1 to point P2 is given by1, 2 Page 13.1093.3Where v is the particle’s velocity and ds is the arc length through which it is falling. Applyingthe law of conservation of energy we can write for the particleOrSubstituting this for v in the integrand of the first equation and following the steps given inReferences 1 and 2, we can show that 2 x = ½ k (q – sinq), 2 y = ½ k (q – cosq

Conference Session

Laboratory Development in ECE Education

Collection

2008 Annual Conference & Exposition

Authors

Osama Mohammed, Florida International University; Nagy Abed, Quanta Technology

Tagged Divisions

Electrical and Computer

transformed in a coordinate system that rotates with therotor flux vector. The main function of the controller is to control the switching of thepower converter so that desired currents are supplied to the motor.The actual motor currents are measured by the Hall-effect sensors, which have goodfrequency response and fed to the FPGA board. As the motor neutral is isolated, only twophase currents are fed back to the board and the other phase current is calculated from them.The calibration of the current sensor is such that for 1 A current flowing through the currentsensor, output is 0.5 volts. Q axis reference current is calculated from the speed error signalby the PI controller.Three phase reference currents are generated utilizing reference q axis

Conference Session

Multidisciplinary Design Constituents

Collection

2008 Annual Conference & Exposition

Authors

Catherine Skokan, Colorado School of Mines; Michael Ewing, Colorado School of Mines; Barbara Moskal, Colorado School of Mines; Heidi Barker, Regis University

Tagged Divisions

Multidisciplinary Engineering

activities. The second week will also provide for discussionswith the teachers concerning the connections to mathematics, science, and engineering aswell as the appropriateness of the material and episodes. A future study will compare theeffectiveness of the two-week classroom workshop with the hybrid version.Bibliography1. Numb3rs, http://en.wikipedia.org/wiki/Numb3rs, accessed 1/082. http://www.weallusematheveryday.com/tools/files/waumed_taping_terms.pdf, accessed 1/083. Moskal, Barbara, Skokan, C., Kosbar, L., Dean, A., Westland, C., Barker, H., Nguyen, Q., and Tafoya, J., 2007, K-12 Outreach: Identifying the Broader Impacts of Four Outreach Projects: JEE, Vol. 96, No. 34. NUMB3RS: We All Use Math Every Day, http

Conference Session

Solar Power, Wind Power, and Energy System Initiatives

Collection

2008 Annual Conference & Exposition

Authors

Narciso Macia, Arizona State University; John-Paul Ishioye, Arizona State University; Brigid Dotson, University of Washington; Maria Macia, Veritas Preparatory Academy

Tagged Divisions

Energy Conversion and Conservation

Figure 1: Model schematic for thermal model of homeSol-Air TemperatureA/C and Heating engineers have developed a methodology that permits them to take into accountsolar irradiation in heat transfer mechanisms associated with heating/cooling loads calculations[2]. The heat flux passing through an exterior, sunlit surface is given by: q A b g ? cEt - h0 To / Ti / gFR (0.1)where: Page 13.695.3 Proceedings of the 2008 American Society for Engineering Education Annual Conference &

Conference Session

Materials In Design And Manufacturing

Collection

2008 Annual Conference & Exposition

Authors

Krishna Bhavaraju, University of Louisiana at Lafayette; Pavel Ikonomov, Western Michigan University; Suren Dwivedi, University of Louisiana at Lafayette; Alamgir Choudhury, Western Michigan University

a) b) F Q J J Q M2 M4 M3 M1 M3 M1 M2 R K M4

Conference Session

Manufacturing Engineering Technology Curriculum

Collection

2008 Annual Conference & Exposition

Authors

Rex Kanu, Ball State University

Tagged Divisions

Engineering Technology

, 40, 290-296.4. Zhang, Q., Wang, K., Men, Y., Fu, Q., Dispersion and Tensile Behavior of Polypropylene/Montmorillonite Nanocomposites Produced via Melt Intercalation, Chinese Journal of Polymer Science, 2003, 21 (3), 359-367.5. Hull D., Clyne, T.W., An Introduction to Composite Materials, 2nd Edition, 1996, Cambridge University Press, UK, page 1.6. Agwarwal, B.D., Broutman, L.J., Analysis and Performance of Fiber Composites, 2nd Edition, 1990, John Wiley and Sons, Inc, New York, USA, page 2.7. Dasari, A., Lim, S-H., Yu, Z-Z., Mai, Y-M., Toughening, Thermal Stability, Flame Retardancy, and Scratch- Wear Resistance of Polymer-Clay Nanocomposites, Australian Journal of Chemistry, 2007, 60(7), 496-518.8. Winey, K.I., Vaia, R.A

Conference Session

Fluid Mechanics Experiments and Laboratories

Collection

2008 Annual Conference & Exposition

Authors

B. Terry Beck, Kansas State University; Brian Anderson, Kansas State University; Mina Hosni, Kansas State University

Tagged Divisions

Division Experimentation & Lab-Oriented Studies

the duct model. The airspeeds are too small for the normal wind tunnel measurement systemwhich makes use of the pressure drop in the wind tunnel converging section resulting from theBernoulli effect. An indirect method is possible, by measuring the volumetric flow rate suppliedto the rake manifold from the smoke generation system. If the total volumetric flow rate of aircontaining smoke is Q, then the average discharge velocity from N identical rake tubes will be U= Q/(NA), where A is the internal cross-sectional area of a single typical rake tube. Since theexit tube flow must be properly balanced with the external airspeed for so-called iso-kineticinjection, U will be approximately the airspeed in the tunnel test section at the point of the

Conference Session

Alternative Energy Source Projects

Collection

2008 Annual Conference & Exposition

Authors

Esther Ososanya, University of the District of Columbia; Abiose Adebayo, University of the District of Columbia; Jean-Pierre Fodjouo, University of the District of Columbia; Steven Omoijuanfo, University of the District of Columbia; Francis Ayissi, University of the District of Columbia; Tuan Ly, University of the District of Columbia; Kevin Allen, University of the District of Columbia; Mamoun Mohammed Ali, University of the District of Columbia; Gizaw Mulugeta, University of the District of Columbia; Anene Wynn, University of the District of Columbia; Dimitri Ditombi Bamba, University of the District of Columbia; Meraj Shaikh, University of the District of Columbia

Tagged Divisions

Energy Conversion and Conservation

efficiency of the anaerobic digestion process is controlled by: ‚ The type of waste digested ‚ It’s concentration ‚ It’s temperature ‚ The presence of toxic materials ‚ The PH and Alkalinity ‚ The HRT (Hydraulic Retention Time) time available to convert waste to gas HRT = V/Q Q = volume of tank V = daily flow of gas ‚ The SRT (Solid Retention Time) time required to convert the solid to gas ( 10- 15 days) for low rate digestion and ( 20-30 days) for high rate digestionCosts Estimation:The $ amount of the anaerobic digestor can be estimated according to

Conference Session

Innovative Curriculum in Electrical Engineering Technology

Collection

2008 Annual Conference & Exposition

Authors

Cheng Lin, Old Dominion University; Gene Hou, Old Dominion University; Yuzhong Shen, Old Dominion University; Hector Garcia, Old Dominion University

Tagged Divisions

Engineering Technology

+ (r ) i −1 T ij ∆rij ij l iji −1The collection of the lengths of six cylinders gives a matrix equation, ∆l ij = B∆q (16)  riji - 1 T I riji -1 ~ T r0   ∆s where B is a 1 × 6 matrix whose row is equal to  i -1 − i-1  and

Conference Session

NSF Grantees Poster Session

Collection

2008 Annual Conference & Exposition

Authors

Norb Delatte, Cleveland State University; Paul Bosela, Cleveland State University; Rosemary Sutton, Cleveland State University; Joshua Bagaka's, Cleveland State University; William Beasley, Cleveland State University

• Remembered 4 major case studies, who presented them (outside speaker presented 2 of them) and that there were some supplementary materials • Remembered a mixture of technical details as well a role of team, communication, etc.Q. 2. Students found case studies useful Real problems that engineers have to know – not just equations or books, but Page 13.232.7 • communication etc. • Interesting • Maybe will help students avoid mistakes in the futureQ. 3. Issues or Problems • More class interaction about case studies. • More interaction and time for Q & A in

Conference Session

Materials in Design and Manufacturing

Collection

2008 Annual Conference & Exposition

Authors

Zhiqiang Hu, University of Missouri - Columbia

Tagged Divisions

Mechanical Engineering

ecology and environmental biotechnology. Environmental Science & Technology 2006, 40,1096-1103.11. Hu, Z. Q., Chandran, K., Grasso, D., and Smets, B. F. Effect of nickel and cadmium speciation on nitrification inhibition. Environmental Science & Technology 2002, 36,3074-3078.12. Ellis, T. G., Barbeau, D. S., Smets, B. F., and Grady, L. C. P. Respirometric technique for determination of extant kinetic parameters describing biodegradation. Water Environment Research 1996, 68,917-926.13. Magbanua, B. S., Smets, B. F., Bowyer, R. L., Rodieck, A. G., Sanders, R. W., Sowers, W. W., Stolze, S. B., and Grady, C. P. L. Relative efficacy of intrinsic and extant parameters for modeling biodegradation of

Conference Session

Manufacturing Engineering Technology Curriculum

Collection

2008 Annual Conference & Exposition

Authors

Wei Zhan, Texas A&M University; Jay Porter, Texas A&M University

Tagged Divisions

Engineering Technology

1st Q uartile -290.50 M edian -44.15 3rd Q uartile 193.50 -800 -400 0 400 800 M aximum 1060.00 95% C onfidence Interv al for M ean -78.18 -35.90

Conference Session

Thermodynamics, Fluids and Heat Transfer - I

Collection

2008 Annual Conference & Exposition

Authors

Troy Dent, University of Alabama; Keith Woodbury, University of Alabama; Robert Taylor, University of Alabama

Tagged Divisions

Mechanical Engineering

Surface Temperature, T ( x, t ) − Ts  x  = erf   (13) Ti − Ts  2 α ⋅t Constant Surface Heat Flux, α ⋅t 2 ⋅ q"0 π exp − x  − q"0 ⋅x erfc x  2 T ( x, t ) − Ti =  4 ⋅α ⋅ t  (14) k   k  2 α ⋅t and

Conference Session

Inter- and Multidisciplinary Laboratories

Collection

2008 Annual Conference & Exposition

Authors

Samuel Lakeou, University of the District of Columbia; Esther Ososanya, University of the District of Columbia; Wagdy Mahmoud, University of the District of Columbia; Fatou Mbengue, University of the District of Columbia; Bodjona Coboyo, University of the District of Columbia; Abdulaziz SIrag, University of the District of Columbia; Ben Latigo, University of the District of Columbia

Tagged Divisions

Division Experimentation & Lab-Oriented Studies

circuit condition (V=0), the diode current of equation (1) will be reduced tothe short circuit current Isc= Iop given by: Isc= Iop = (A Ln gop + A Lp gop) (2)When the diode is not loaded or when there is an open circuit across the diode, the totalcurrent I=0. The corresponding voltage V=Voc is the open circuit voltage and is expressedby: kT Ç Ln - L p Voc ? ln È . g op - 1Ù (3) q ÉÈ ( L p / v p ) pn - ( Ln / v n )n p ÙÚAn illuminated diode can therefore generate power but not much power can be deliveredby a single junction which will have a voltage less than its contact

Conference Session

Projects & Laboratories in Mechanical ET

Collection

2008 Annual Conference & Exposition

Authors

Razwaan Arif, Farmingdale State College; Han Chu, Farmingdale, SUNY; Yeong Ryu, State University of New York, Farmingdale; Adam Filios, Farmingdale, SUNY; Hazem Tawfik, Farmingdale State College; Kamal Shahrabi, Kean College of New Jersey

Tagged Divisions

Engineering Technology

Page 13.199.9Sources, Volume (83), 128-133, 1999.[5] T. H. Yang, Y. G. Yoon, C. S, Kim, S. H. Kwak, and K. H. Yoon, “A novel preparationmethod of a self-humidifying polymer electrolyte membrane,” Journal of Power Sources,Volume (106), pp. 328-332, 2002.[6] D. Staschewski, and Z. Q. Mao, “Hydrogen-air PEMFC operation with extraordinarily lowgas pressure and internal humidification-conception and experimental prototype stack,”International Journal of Hydrogen Energy, Volume (24), 543-548, 1999.[7] D. Picot R. Metkemeljer, JJ. Bezian and L. Rouveyre, “Impact of the water symmetry factoron humidification and cooling strategies for PEM fuel cell stacks,” Journal of Power Sources,Volume (75), 251-260, 1998[8] P. Sridhar, R. Perumal, N. Rajalakshmi

Conference Session

Experiments and Laboratories in Mechanical Engineering

Collection

2008 Annual Conference & Exposition

Authors

Messiha Saad, North Carolina A&T State University

Tagged Divisions

Division Experimentation & Lab-Oriented Studies

= . (11) Q in . . Qin = m HV fuel (12)Where HVfuel is the heating value of the fuelExperimental Results Figures 6-11 show sample of the output results obtained at various operatingconditions by the students. 120000 360 Engine Speed, Revolutions Per Minute

Conference Session

Mechanical Engineering Poster Session

Collection

2008 Annual Conference & Exposition

Authors

Messiha Saad, North Carolina A&T State University

Tagged Divisions

Mechanical Engineering

desired output to the required input.The desired output is the power produced to propel the aircraft and the required input isthe heating value of the fuel . WP ηP = . (11) Q in . . Qin = m HV fuel (12)Where HVfuel is the heating value of the fuelExperimental Results Figures 6-11 show sample of the output

Conference Session

Creative Engagement and Developmental Tutoring Method

Collection

2008 Annual Conference & Exposition

Authors

Cecil Shy, Prairie View A&M University; James Northern, Prairie View A&M University; Veda Brown, Prairie View A&M University

Tagged Divisions

Minorities in Engineering

. Page 13.1097.6Bibliography1. National Science Foundation, “Historically Black Colleges and Universities – Undergraduate Program” NSF02160, October 2002.2. David Clarke, “Practice, Role and Position: Whole Class Patterns of Participation”, Patterns of Participation in the Classroom, Annual Meeting of the American Educational Research Association, Chicago, April 21-25, 2003.3. K. Haimes Korn, G. Crossley, “On Student-Centered Learning and Active Participation,” Available online: http://writing.fsu.edu/?q=node/587, May 2007.4. B. Lewis, “Foster Responsible, Ethical Behavior, Through Class Meetings,” Student-Centered Learning: Community Circle, online: http://k6educators.about.com/od/classroommanagement/a

Conference Session

Physics Education Research (PER) Relevant for Engineering Education

Collection

2008 Annual Conference & Exposition

Authors

David Meltzer, University of Washington, Seattle, Washington, USA

Tagged Divisions

Educational Research and Methods

path taken.” This P-V diagram represents a system consisting of a fixed amount of ideal gas that undergoes two different processes in going from state A to state B: Process #1 State B Pressure Process #2 State A Volume [In these questions, W represents the work done by the system during a process; Q represents the heat absorbed by the system during a process.] 1. Is W for Process #1 greater than, less than, or equal to that for Process #2? Explain. 2. Is Q for Process #1 greater than, less than, or equal to that for Process #2? Please explain your answer.FIGURE 1. Two of the questions posed to students in both

Conference Session

Mechanics and the Internet

Collection

2008 Annual Conference & Exposition

Authors

Shahnam Navaee, Georgia Southern University

Tagged Divisions

Mechanics

area (Q) can be obtained using the following equation: b(h 2 / 4 / y 2 )Q? (25) 2Determination of the Principal Stresses:A square differential element of beam subjected to the normal stresses sx and sy and a shearingstress txy is shown in Figure 4. To develop the expression for the principal normal and shearingstresses acting on the element of the beam, the equation for the normal stress s and shearingstress t on an inclined plane with an angle of inclination of s are obtained first. uy A v xy ux

Conference Session

Tools of the Trade

Collection

2008 Annual Conference & Exposition

Authors

Robert Niewoehner, U.S. Naval Academy; Craig Steidle, US Naval Academy; Eric Johnson, US Naval Academy

Tagged Divisions

Engineering Management

, data, etc.for the CAIB report.11 These were then discussed Socratically as a class. The belowsummarizes/paraphrases students’ responses. Note that these questions and this activity workwith any topic in any field. Q- What was the purpose of the CAIB? A- The CAIB sought to identify the causes of the Columbia’s loss and recommend actions for the resumption of U.S space flight activity. Q- What questions did the CAIB principally try to answer? Page 13.1244.5A- What caused the loss of Columbia? What contributory factors may have been present?What actions should NASA and the U.S. government take in the future to reduce

Conference Session

Curriculum Development and Teaching Models in NRE

Collection

2008 Annual Conference & Exposition

Authors

Sheldon Landsberger, University of Texas at Austin; Rose Stiffin, Flroida Memorial University; Dimitri Tamalis, Florida Memorial University; Michael elliott, Flroida Memorial University; Ayivi Huisso, Florida Memorial Univeristy

Tagged Divisions

Nuclear and Radiological

where thestudents are required to take 13 hours of nuclear and radiation engineering courses with theMechanical Engineering Department. There is an excellent opportunity for recruiting thesestudents as well. Below is a detailed description of the above mentioned courses. 1. Introduction to Nuclear Power Systems This course is an introduction to the concepts of nuclear engineering and is the firstcourse to be taken in the sequence. The course starts with an introduction to nuclear structure andnuclear decay. The structure of the atom is discussed along with binding energy, radioactivedecay and the calculation of Q values. Basic nuclear reaction calculations are covered nextincluding reaction rates and calculations of the neutron

Conference Session

NSF Grantees Poster Session

Collection

2008 Annual Conference & Exposition

Authors

Ying Wu, Iowa State University; Qingze Zou, Iowa State University; Stephanie Culter, Virginia Commonwealth University; Kam Leang, Virginia Commonwealth University; Gina Pannozzo, Virginia Commonwealth University; Santosh Devasia, University of Washington

compensate for hysteresisbehavior19, 23, 24. % Step 1: Load in the measurement data; a=load(’wholespectrum’); wholespectrum=a.wholespectrum ; output1=wholespectrum.Y(1).Data; input1=wholespectrum.Y(2).Data; % Step 2. Use the MATLABsystem identification % toolbox to obtain the frequency response data; zsw1 = iddata ( output1’, input1’, 0.0001 ); zswd1 = detrend ( zsw1 ); %specify the frequency range f_range = ( 1 : 600 ) . * 2 * pi; zf_sw1 = spafdr ( zswd1, [], f_range ); rd ( : , : ) = zf_sw1 ( 1 , 1 , : ).ResponseData; fre q = zf_sw1 ( 1 , 1 , : ).Frequency; New_rd

Conference Session

Trends in Engineering Education

Collection

2008 Annual Conference & Exposition

Authors

Joye Jepson, Antioch University; Norman Fortenberry, National Academy of Engineering

Tagged Divisions

Women in Engineering

undergraduate engineering success for underrepresented minority students. Journal of Engineering Education, 92(1), 27-27-39.36. McCoy, L. P., & Heafner, T. L. (2004). Effect of gender on computer use and attitudes of college seniors. Journal of Women and Minorities in Science and Engineering, 10(1), 55-55-66.37. McLoughlin, L. A. (2005). Spotlighting: Emergent gender bias in undergraduate engineering education. Journal of Engineering Education, 94(4), 373-373-381.38. Meyer, Diana. (2002). Wulf: Leading the NAE as it helps shape national policy. http://72.14.209.104/search?q=cache:aYFXqc2VAe4J:https://www.ece.uiuc.edu:4443/alumni/su02/wulf.html+ Dr.+William+A.+Wulf+%22engineering+is+a+creative+profession+that+thrives

Conference Session

Computer ET Innovation

Collection

2008 Annual Conference & Exposition

Authors

David Forsman, Pennsylvania State University-Erie

Tagged Divisions

Engineering Technology

e M a t h c a d Q u a d E q S w i m m e r P r o b l e m T i m

Conference Session

Service - Learning Projects

Collection

2008 Annual Conference & Exposition

Authors

Heather Wright, Michigan Technological University; Linda Phillips, Michigan Technological University; James Mihelcic, Michigan Technological University

Tagged Divisions

Environmental Engineering

Conference Session

Improving Mechanics & Structural Modeling Courses

Collection

2008 Annual Conference & Exposition

Authors

Raghu Echempati, Kettering University; Enayat Mahajerin, Saginaw Valley State University; Anca Sala, Baker College

Tagged Divisions

Mechanical Engineering

with MathCAD basics from previous courses,which allowed a smooth transition to solving the specific problems encountered in controlsystems.Grading Scheme:100 points each for each of: homework (H), quizzes (Q), midterm exam (M), final exam (F), andproject (P) have been assigned for a total of 500 points. The grade distribution is shown in Table6. A statistical analysis similar to the one in Table 3 for “Course 1” is not given, due to the smallnumber of students in the course. Also, the project for this course is an individual effort. Eachstudent chooses their control system, and performs the modeling and analysis. However a shortpower point presentation is prepared and given in the final class session by each student andcomments are received

Conference Session

Web-Based Learning in Engineering Technology

Collection

2008 Annual Conference & Exposition

Authors

Ronald Uhlig, National University; Ali Farahani; Howard Evans, National University; Shekar Viswanathan, National University; Mark Sotelo, National University

Tagged Divisions

Engineering Technology

Q u J u l 0 7 J a 0 8 C h a

Conference Session

Innovation in Construction Engineering Education I

Collection

2008 Annual Conference & Exposition

Authors

Kun-jung Hsu, Leader University

Tagged Divisions

Construction

time-cost tradeoff curve. The diagrammatic expression of critical path method andmathematical method will be combined with interaction way, by which a more clear and efficientexposition of solving the time-cost tradeoffs problem.Bibliography1. Burns, S-A, Liu, L., and Feng, C-W., 1996, LP/IP hybrid Method for Construction Time-Cost Trade-off Analysis, Construction Management and Economics, 14: 265276.2. Elmaghraby, S.E., Pulat, P.S., 1979, Optimal Project Compression. with Due Dated Events, Nay. Research Logistics Q., 26 (2), 331-348.3. Fulkerson, D. R., 1961. A Network Flow Computation for Project Cost Curves, Management Science, Vol. 7, No. 2. (Jan., 1961), pp. 167-178.4. Kelley Jr., James E., 1961 Critical-Path Planning and

Conference Session

Professional Practice and AEC Education

Collection

2008 Annual Conference & Exposition

Authors

Gouranga Banik, Southern Polytechnic State University

Tagged Divisions

Architectural

Frequently Comment Category Needs more hands on or practical training Same (11) (14)Q.3 Do graduates feel they were well-equipped for the workplace by their education?This final question is answered by the results from Fig. 2, which represents graduates' estimationof their achievement of essential skills and the effectiveness of university teaching to achievethose skills. These include an ability to work effectively in diverse teams and projects, an abilityto lead others effectively, creativity adaptability & flexibility and an ability to exerciseprofessional judgment.All these abilities are likely to be developed over a period of time through practical experienceand recent graduates therefore do