Conference Session

Programming for Engineering Students

Collection

2006 Annual Conference & Exposition

Authors

John Lusth, University of Arkansas

Tagged Divisions

Computers in Education

 ✂✁☎✄✆✄✞✝✠✟☛✡✌☞✍✄✏✎ ✑✒✡✌✓✕✔✖✝✗✄✘✡✚✙✂✡✛✁ ✜✣✢✤✁✥✎✒✢✧✦✩★ ★ ✪☞ ✄✫✎ ✜✣✢✤✁✭✬✮✝✠✟☛✡✚✙✰✯ ✱ ✓✕✔✆☞✲✁✴✳✶✵✷✦✸✙✛✝✗✔ ✜✹✢✺✁✸✬✤✝✠✟☛✡✚✙✼✻✽✁☎✢✿✾❀✦❁✡❂✦ ✑✒✌✡ ✢❃✓✞✟☛✡✌✓✆✢✺✝❄✙ ❇❅ ❆✌❈❊❉❂❋●❅●❍■❉ ❏✼❑✪▲◆▼❖▼✒▲◆◗❑❘▲◆▼❖❙❯❚❲❱❨❳❩❊❬✭▲✽❭✗❪❫❬❵❴❜❛❯❝❘❊❬❵❪✘❳❞◗❬❵❡❜❝✫❝❢❱✽❣❫❚❞❤❥✐❇▲◆▼❖❙❯❴❜❬❵❝✪❣☎❦❧❑✪❳❩❝❘❜❑❘❝✫❑✪▲◆❴❯❣♠❪❫❝❘❪✘❳❞❪ ❱♥❚❲❱✽❑♣♦❥▲❨❭q❑✪▲◆❯❯❝✪❑✪❬❵❳❞▲◆srt❝✍❬✈✉❇❝✪❝❘①✇◆❳③②◆❝✪④❙❯❣❫▲◆✇◆❣❵❱❨▼✒▼❖❳❩❯✇✕❙❯❣♠▲⑥⑤❫❝✪❑✪❬♠❪⑦❱✽❜❛s❬♠❡❯❝✖▲◆❴❜❬❵❪❫❳❩❛❯❝✏✉☛▲◆❣♠❚❞❛✤⑧④⑨❁❭⑩❬♠❝❘✤❶❬❵❡❜❳❩❪❷❑❘❱✽❯❯▲✽❬☎r❸❝✏❡❯❝✪❚❩❙❸❝❘❛❹❪♠❳❞❯❑❘❝✏❪❺❬❵❴❯❛❯❝✪❊❬❵❪✒❱❨❬✘❬❵❡❻❱⑥❬✘❚❩❝✍②◆❝❘❚✠❛❜▲✷❯▲✽❬✘❤◆❝✍❬❖❡❻❱❢②◆❝✞❱✷❛❯❝❘❝✪❙s❝✪❯▲◆❴❯✇✽❡❼❴❯❜❛❯❝❘❣❾❽ ❪❫❬❵❱✽❯❛❯❳❞❯✇❖▲◆❣✠✉❿❳❩❛❯❝✭❝❘❯▲✽❴❯✇◆❡✕❝✲➀❧❙t❝✪❣♠❳❩❝✪❯❑❘❝✸❬❵▲✒r❯❴❯❳❞❚❩❛✖❪♠▲◆❙❜❡❯❳❩❪❺❬❵❳❩❑❘❱❨❬❵❝✪❛✆❪❺❤➁❪❫❬❵❝✪▼✒❪✪⑧✠➂✠❡➃❴❯❪❘❶❸❳❩❯❪❺❬❵❣❫❴❯❑✪❬♠▲◆❣♠❪✗▲✽❭⑩❬❵❝✪ ❑❘▲✽❯❑❘❝✪➃❬♠❣❵❱❨❬♠❝❷▲◆✆❑❘❣♠❳③❬❵❳❞❑❢❱✽❚✺❳③❬❵❝❘▼❖❪✗❑❘▲◆▼❖▼✒▲✽✞❬♠▲⑦▼✒❱✽❊❤✕❱❨❙❯❙❯❚❩❳❞❑❢❱❨❬♠❳❩▲◆❜❪❘❶❻❚❩❝❘❱❢②❧❳❞❯✇✒❱✽❪♠❪❫❳❩✇◆❯▼❖❝❘❊❬♠❪✰❬❵❡❯❱❨❬❁❪❫❝❘❝❘▼ ❪♠▲✽▼✒❝✍✉❿❡❻❱❨❬✫❛❜❳❩❪♠❑✪▲◆❯❯❝✪❑✪❬♠❝❘❛✤⑧➅➄✰❜❭➆▲✽❣❫❬❵❴❜❻❱❨❬❵❝✪❚❞❤✽❶❇❬❵❡❯❝✞②◆❝✪❣❫❤❼❚❲❱✽❑♣♦➇▲✽❭❁❴❯❯❛❯❝✪❣♠❪❫❬❵❱✽❯❛❯❳❞❯✇❥r❊❤s❪❫❬♠❴❯❛❯❝❘❊❬♠❪⑦❬❵❡❻❱⑥❬ ❙❯❣❫▲◆▼✒❙❧❬❵❝❘❛✖❪❫❴❯❑♣❡✕❱❨r

Conference Session

Computed Simulation and Animation

Collection

2006 Annual Conference & Exposition

Authors

Ramiro Bravo, Tri-State University

Tagged Divisions

Computers in Education

needed.The conservation of mass applied to two nodes such as A and B provides two equations. Qa = Q1 +Q2 (1) Q1 = Qb + Q3 (2)The conservation of energy applied to the loop A, B, and C provides the third one. h1 + h3 = h2 (3)In this equation, h1, h2, and h3 are the head losses in each pipe.This system of equations cannot be easily solved since the expression for the head losses h asfunction of Q is very complicated. The head loss is given by L V2 h= f

Conference Session

Embedded Computing

Collection

2006 Annual Conference & Exposition

Authors

Christopher Carroll, University of Minnesota-Duluth

Tagged Divisions

Computers in Education

Figure 2. Asynchronous templateFigure 3 below shows a classic SR latch, the most fundamental memory circuit studied inintroductory digital circuit courses. Figure 4 shows exactly the same circuit, but drawndifferently to emphasize the single feedback path, which holds the one state variable in thecircuit. The circuit remembers which of the two input variables, S or R, was most recently a 1,by recording on the output variable, Q, a 1 if it was S or a 0 if it was R. By realizing that this SRlatch, the most fundamental memory circuit in any static memory device, is actually anasynchronous finite state machine, one realizes the fundamental nature of this topic. S S

Conference Session

Computers in Education Poster Session

Collection

2006 Annual Conference & Exposition

Authors

James Reising, University of Evansville

Tagged Divisions

Computers in Education

vector of random numbers mean( v ) = 1.044 v := rnorm( n , µ , σ) the vector of random numbers mean( v ) = 1.00111 h := histogram ( intvls , v ) q := pnorm h ( 〈0〉 ) 〈0〉 ( + .05, µ , σ − pnorm h − .05, µ , σ ) h := histogram ( intvls , v) q := pnorm h

Conference Session

Issues in Digital Signal Processing

Collection

2006 Annual Conference & Exposition

Authors

Robert Kubichek, University of Wyoming; Thad Welch, U.S. Naval Academy; Cameron Wright, University of Wyoming

Tagged Divisions

Computers in Education

. Block diagram of the PXI communication system configured for wireless use.3 Educational Uses of the PXI SystemWhile inexpensive audio-band signal analyzer systems are useful at showing concepts of signalspectrum and I/Q modulation, the benefits of using a professional grade tool for displaying theproperties of real-world signals captured in real-time are difficult to understate. In the followingsections we provide a few examples of the many ways the PXI system can be used to enhanceclassroom teaching. We use the PXI system primarily as a classroom demonstrator as it’s cost(about $39K including educational discount) usually precludes purchasing one for every studentworkbench. However, the system can be used for some student lab exercises with

Conference Session

Issues in Digital Signal Processing

Collection

2006 Annual Conference & Exposition

Authors

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

Tagged Divisions

Computers in Education

-based demonstrations previously mentioned. This new board interconnects aTexas Instrument (TI) C6711 or C6713 DSP starter kit (DSK) to an Analog Devices (AD)quadrature modulator (AD9857). This modulator is capable of operating at up to 200 millionsamples per second (MS/s), with a resulting carrier or intermediate frequency of up to 80 MHz(i.e., 40% of the system’s sample frequency). An onboard 32-bit direct digital synthesizer (DDS)is used to generate the carrier waveform values. Baseband 14-bit in-phase and quadrature (I/Q)data are presented to the modulator, which can be programmed to interpolate the data at rates of4x to 252x. The AD9857 is interfaced to the DSK using an Altera Cyclone FPGA. The FPGAprovides queuing of the I/Q data, and the

Conference Session

Computing Tools for Engineering Education

Collection

2006 Annual Conference & Exposition

Authors

Hassouneh Al-Matar, Oklahoma State University; Afshin Ghajar, Oklahoma State University; Ronald Delahoussaye, Oklahoma State University

Tagged Divisions

Computers in Education

Y m,n-1 X X Figure 1. An interior node at location (m,n) and its neighbors. Applying the heat balance equation around grid point (m,n) we get the followingapproximating algebraic equation, also known as the finite difference equation: ∂T q m−1,n + q m +1,n + q m,n −1 + q m,n +1 + S∆x∆y = ρc∆x∆y (1) ∂t Where

Conference Session

Computing Tools for Engineering Education

Collection

2006 Annual Conference & Exposition

Authors

William Josephson, Tuskegee University; Jaya Krishnagopalan, Tuskegee University; Nader Vahdat, Tuskegee University

Tagged Divisions

Computers in Education

anequation is not explicit in an unknown variable. Such situations are common in chemicalengineering courses starting with the sophomore year. Figure 3 illustrates a case fromthermodynamics4 in which a given equation relates τ, a dimensionless variable equal to atemperature divided by the initial temperature To, to other parameters such as heat transfer Q, thegas constant R, the initial temperature To, molar amount n and a heat capacity relationshipdependent on the material (parameters A, B, C and D). Q = nR[ATo(τ-1) + BTo2 (τ2-1)/2 + CTo3 (τ3-1)/3 + D(τ-1)/τTo]As the equation is cubic in τ it is not able to be solved analytically by first year students.However, an iterative approach (or “trial and error” in student-speak) does

Conference Session

Instrumentation and Laboratory Systems

Collection

2006 Annual Conference & Exposition

Authors

Roxanne Toto, Pennsylvania State University; Mark Wharton, Pennsylvania State University; John Cimbala, Pennsylvania State University; John Wise, Pennsylvania State University

Tagged Divisions

Computers in Education

- (2) It was better when the instructor used the Tablet PC in class Q2. Why? (user had space to elaborate) Q. 3 What effect did the instructor's use of the Tablet PC have on your attention to the lecture materials? - (1) I paid much less attention - (2) I paid a little less attention - (3) There was no effect - (4) I paid a little more attention - (5) I paid much more attention Q.4 Why (user had space to elaborate) Page 11.973.4Figure 1

Conference Session

Issues in Computer Education

Collection

2006 Annual Conference & Exposition

Authors

Jun Luo, Ohio Northern University; Robert Hovis, Ohio Northern University

Tagged Divisions

Computers in Education

papers; 2) if students want to improve their papers based on the results in the evaluationforms, they must turn in the final version of the paper at the end of the tenth week. Theinstructor will calculate a new score for the paper if it has been updated according to theevaluation results. For example, if a student loses points due to spelling errors and later revisesthe paper to correct the errors, then the deducted points will be credited.The second in-class test is given in the fourth class period of this week.Week 10: Presentation.Students are required to give a presentation in class, using Microsoft PowerPoint slides. Eachpresentation is followed by a 2-minute Question-and-Answer (Q&A) session. The students areexpected to clearly address