Conference Session

Recruitment, Retention, and First-Year Programs in ECE

Collection

2011 ASEE Annual Conference & Exposition

Authors

Eric A Freudenthal, University of Texas, El Paso; Art Duval, University of Texas, El Paso; Sarah Hug, University of Colorado, Boulder; Alexandria Nicole Ogrey; Kien H. Lim, University of Texas, El Paso; Catherine Tabor, El Paso Independent School District; Rebeca Q. Gonzalez, UTEP-Graduate Student and EPISD-Teacher; Alan Siegel, New York University

Tagged Divisions

Electrical and Computer

science teacher in El Paso, Texas. She holds a BA in mathematics, a BS in physics , and a MA in Science Teaching (emphasis physics).Rebeca Q. Gonzalez, UTEP-Graduate Student and EPISD-Teacher A former Electrical engineering from ITCJ in Mexico currently teaching 9-12 pre-engineering courses and computer science and a master of arts in teaching science graduate student from University of Texas at El Paso.Prof. Alan Siegel, New York University Alan Siegel is a professor in the department of computer science and NYU. His research is in the mathe- matical foundations of computer algorithms, and in the pedagogical approaches used to teach introductory mathematical topics and algorithms in the US and abroad

Conference Session

Capstone Design Projects in ECE

Collection

2011 ASEE Annual Conference & Exposition

Authors

Ziqian Liu, State University of New York, Maritime College

Tagged Divisions

Electrical and Computer

-oriented control, the model of induction motor can be represented on d-q rotating axis, in whichthe d-axis is aligned with the rotor flux at all time and the q-axis is always 90 ahead of the d-axis. Therefore, we take new variables similar to3, 4 as follows d cos sin a (6) q sin cos b id cos sin ia

Conference Session

ECE Division Poster Session

Collection

2011 ASEE Annual Conference & Exposition

Authors

Tokunbo Ogunfunmi, Santa Clara University; Mahmudur Rahman, Santa Clara University

Tagged Divisions

Electrical and Computer

the polarities of the Potential and under what condition work is done on the charges as against by the charges. Q. Potential difference from point C to F is 1.65 V. It takes 2.56 nJ to move 6x109 protons from A to C. How much work needs to be done to move 3x108 electrons from F to A?2) concept: Polarity of voltage sources In this example the conventional polarity notation scheme in voltage sources is clarified. In a circuit diagram, terminals of voltage sources denoted by + or – does not necessarily indicate that it is at positive or negative potential, rather the terminal denoted by + is at a higher potential than that denoted by – . Both terminals can be in reality at positive, negative or a combination

Conference Session

Innovations in Power Engineering Education

Collection

2011 ASEE Annual Conference & Exposition

Authors

Linfeng Zhang, University of Bridgeport; Xingguo Xiong, University of Bridgeport; Navarun Gupta, University of Bridgeport

Tagged Divisions

Electrical and Computer

its structure is shown in Figure 7 (a). Theprice on the central dispatch of the smart grid is dynamic, high in the day time and low in thenight time. There is two-way transmission between the main dispatch and a microgrid. aperformance metric Q for each microgrid is defined as: Q  w1F  w2 E  w3 S Where, F is a cost index of electricity, E is an environmental effect index due toatmospheric emissions, and S is a load satisfaction. Q, F, E, and S are all between 0 and 1. wi(i=1, 2, 3) are weighting factors and  wi  1 . The ultimate objective for each MG is tomaximize its overall performance index. Page 22.35.7

Conference Session

New Developments in Teaching Electromagnetics and Related Topics

Collection

2011 ASEE Annual Conference & Exposition

Authors

Robert H. Caverly, Villanova University

Tagged Divisions

Electrical and Computer

opportunity to further enhance student learning and engagement inthe area of system engineering, electronics and high frequency design and constructiontechniques. Some schools have used high frequency design classes from a theoreticalperspective but with a lower frequency project component to illustrate the timeless concepts.Other schools2-4 are using the latest PC-soundcard based software defined radio (SDR) kits andideas to illustrate receiver concepts as well as I/Q modulation schemes; PC software fromexternal sources are used to process the I/Q signals from the hardware SDR and so there is a fearthat some important concepts may be lost through the use of the ‘black box’ software. However,the hardware component is still invaluable for students to

Conference Session

Recruitment, Retention, and First-Year Programs in ECE

Collection

2011 ASEE Annual Conference & Exposition

Authors

Qing Zheng, Gannon University; Ramakrishnan Sundaram, Gannon University

Tagged Divisions

Electrical and Computer

assemble and validate the project with thePCB-based platform. From the follow-up survey for the Engineering Day and the ECEDay events, it has been shown that these events had a very positive effect on high schoolstudents for considering careers in ECE.Bibliography:[1] Sundaram, R. and Zheng, Q., “Stem-Based Projects to Integrate the Undergraduate Electrical and Computer Engineering Program with the K-12 Stem curriculum,” Proceedings of the 2010 American Society for Engineering Education Annual Conference & Exposition, Louisville, Kentucky, USA, June 20-23, 2010.[2] Frechtling, J. and Sharp, L. (2002). The 2002 User-Friendly Handbook for Mixed Evaluation, NSF 02-057. Arlington, VA: NSF.[3] NSF 97-153: User-Friendly Handbook for

Conference Session

Laboratory Development in ECE

Collection

2011 ASEE Annual Conference & Exposition

Authors

Sergey N. Makarov, Worcester Polytechnic Institute; Reinhold Ludwig, Worcester Polytechnic Institute; Kaung Myat Win, Worcester Polytechnic Institute, ECE Department

Tagged Divisions

Electrical and Computer

based on the Lorentz force effect.1.2 Second step - Generator action: E  W / q  lB V Fig. 2. Linear generator (linear dynamo) based on the Lorentz force effect.1.3 Third step - Brake action: Fb  lI b B  l 2B 2 / R Page 22.276.3Fig. 3. Braking effect of the Lorentz force - motor (or generator) setup.2. Rotating DC machine. Torque constant and voltage constant (one lecture)The lecture sequence is outlined using four figures that follow. We first derive the torqueconstant, then introduce the stall torque and the stall current. Finally, we proceed to theequivalent circuit model of a motor and to the voltage constant. This lecture

Conference Session

Teaching Circuit Theory and Electronics

Collection

2011 ASEE Annual Conference & Exposition

Authors

James W. Bales, Massachusetts Institute of Technology

Tagged Divisions

Electrical and Computer

appear to have magical power to theuninitiated. By the end of the hour we can alter the function generators settings, scramble theoscilloscopes controls, and the students can recover the signal (albeit with some guidance from acheat sheet).We then present two ways of considering capacitors. First, we present the physical model as adevice that stores charge, and draw the corresponding analogy from hydraulics (water stored in atank or bucket). We then give a more abstract definition that a capacitor is a device that obeys the Page 22.90.8equation V = q/C, and draw the parallel to Ohm's law, where I is replaced by q and R by 1/C. Webriefly touch

Conference Session

Teaching Analog and Digital Communication: Novel Ideas for Lecture Courses, Laboratories, and Projects

Collection

2011 ASEE Annual Conference & Exposition

Authors

Jay Wierer, Milwaukee School of Engineering; Edward W. Chandler, Milwaukee School of Engineering

Tagged Divisions

Electrical and Computer

instead of an analogswitch. The TIMS-provided BPSK experiment was simplified to eliminate the phase shifter andline-code encoder, but still have a functional modulator that produces the expected BPSKwaveform. Instead of using an M-level encoder to generate I and Q data signals from a bitstream, as is done in a TIMS-provided experiment, a QPSK modulator is constructed inExperiment 6 using two independent data streams from the Sequence Generator module, eachmultiplies either a sine or cosine carrier, and the two modulated carriers are added. The use ofthe spectrum-analyzer capabilities built into the oscilloscope again allows students to view signalspectra. Students easily verify that the bandwidth of the BPSK signal with message data at

Conference Session

New Trends in ECE Education

Collection

2011 ASEE Annual Conference & Exposition

Authors

Farzad Pourboghrat, Southern Illinois University; Narayanan Ramachandran, Southern Illinois University, Carbondale; Aishwarya Vasu, Southern Illinois University, Carbondale; Arjun Shekar Sadahalli, Southern Illinois University, Carbondale; Prashanthi Banala, Southern Illinois University, Carbondale; Giampiero Campa, MathWorks

Tagged Divisions

Electrical and Computer