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. Page 8.1101.3“Proceedings of the 2003 American Society of Engineering Education Annual Conference &Exposition Copyright © 2003, American Society for Engineering Education”This approach was employed using on a paper-and-pencil exams (and, more recently, quizzes)for many years.Some experimentation in the fall 2002 semester yielded the following quiz and final examadministration approach: (Quiz[zes] and exam[s] are henceforth referred to as Q/E.) • Q/E are composed in the same manner in which they have been composed for years using Microsoft Word software, but with directions suitable for electronic Q/E completion and submission. • Q/E are submitted to Blackboard’s digital dropbox of each student. (Q/E submission to
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Session 2003-2140 Roadblocks in the Six-Sigma Process Neslihan Alp, Ph.D. and Mike Yaworsky University of Tennessee at ChattanoogaAbstractSix-Sigma is a quality improvement program used by many major companies with varying degreesof success. This paper shows the Process Map for the Six-Sigma Process and identifies the mostdifficult steps. A survey is conducted to collect data from several companies to develop the Six-Sigma Process Map and determine the most critical steps. The results show that the followingsteps are the most difficult steps throughout the whole process: q Develop project
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uses them to compare student progress in any given Page 8.281.3 Proceedings of the 2003 American Society for Engineering Education Annual Conference & Exposition Copyright 2003 American Society for Engineering Education CE492 ENGINEERING DESIGN PROBLEM TERM 02 -2 _____/10: _____/15 points [App. D] ARCH. CONCEPT: FLOOR PLAN q Building outline not unnecessarily irregular 10% SUBMITTAL GRADE SHEET
of Missouri – Rolla. These games focus on fundamental topics such as centroids, moments of inertia,shear force and bending moment diagrams, the first moment of area Q, and Mohr’s Circle for plane stress. Thesegames seek to develop the student’s proficiency and confidence in narrowly defined but essential topic areas usingrepetition and carefully constructed levels of difficulty. The game format provides students with a learning structureand an incentive to develop their skills at their own pace in a non-judgmental but competitive and often funenvironment. Performance improvements and student reaction to the games are discussed.I. IntroductionEngineering mechanics courses such as Statics and Mechanics of Materials are courses that seekto
American Society for Engineering Education Annual Conference &Exposition Copyright © 2003, American Society for Engineering EducationDigital CircuitryThe fundamental circuitry for the QPSK modulator is shown in Figure 2, and is the block labeledMUX_AND_RINGCTR in Figure 1.A 4-bit ring oscillator is initially loaded with “1100”. The four Q-outputs each produce a 50%duty cycle waveform, at a frequency one-fourth of the internal carrier clock (7200 Hz, in thiscase). In addition, the Q-outputs provide four waveforms, with the required 90-, 180-, and 270-degree phase shifts. These four Q-outputs are then used as inputs to a 4-to-1 multiplexer. One ofthe four inputs is selected by the two bits D1 and D0. Figure 2. QPSK Basic CircuitThis
. q1 = C1v q1 = 1µF * 30V q1 = 30 µC Charge Pump AnalysisThen the total amount of charge that can be stored in C2 is calculated. Note that thevoltage on C2 is said to be 25 volts because of voltage drop across the diode. q2 = C 2 v q 2 = 10 µF * 25V q 2 = 250 µC Storage of C2 CapacitorIn order for the high side driver to maintain the desired voltage of 20 volts, the amount ofcharge being produced must be at least equal to the amount of charge being drawn, andideally the circuit should produce much more
lifetimes, the board must be maintained at a specified Page 8.174.1 Proceedings of the 2003 American Society for Engineering Education Annual Conference & Exposition Copyright 2003, American Society for Engineering Educationtemperature, Tmax. A cooling system has been designed for this application which involvesblowing air past the board to achieve convective cooling or q = h c A(Tmax - Tair )where q will be equal to the electrical power dissipation. Of course, one of the things that is trueabout computers is that the customer always wants the machine to go faster and be morepowerful. To achieve this a
: Page 8.850.2Proceedings of the 2003 American Society for Engineering Education Annual Conference & Exposition.Copyright © 2003, American Society for Engineering Education q Developing a test item bank q Test construction q Test administration q Test scoring q Interpretation and analysis of results q Item analysis and test refinement q Reporting test resultsThis section describes four applications (some of the above seven items are combined)developed to reduce the workload burden, and summarizes the impact their use had on theprocess.The reader may compare the results reported herein to those reported in7, which describes someexcellent work that resulted in an application called Quizzer
Dr. Ralph Flori that introduced the concepts of shear flow and transverse and longitudinal shear stress. Dr. Flori was chosen to present the video lecture because he was not the Mechanics of Materials instructor for any of these students; therefore, a possible source of experimental bias was eliminated. In addition to the presentation of the pertinent theory, Dr. Flori also worked a simple example illustrating how to calculate the first moment of area Q. (4) Example Problems: After the 10-minute lecture, two additional example problems were presented to each student, in one of three possible formats: (a) One-third of the students viewed a video lecture showing a professor (again, Dr. Ralph Flori
; Exposition Copyright c 2003, American Society for Engineering Education Figure 2: The commDSK user interface. 1. The Gain Imbalance slider control varies the in-phase (I) and quadrature (Q) channel magnitudes ratio (I/Q) from 0.5 to 2.0. This effect turns square constellations into rectangular constellations. 2. The Quad skew slider control varies the degree of orthogonality between the I and Q oscillators by as much as ±30 degrees. 3. The In-band Interference slider controls vary the offset frequency of an interferer and the magnitude of the interference. 4. The AWGN slider control allows additive white Gaussian noise to be added to the signal to allow for variable signal-to-noise
Engineering Education Annual Conference & Exposition Copyright © 2003, American Society for Engineering EducationOutcome links represent an estimate of the Course Outcome’s importance to that ProgramOutcome. In a similar manner, Program Outcome – Program Objective links are an estimate ofthe Program Outcome’s importance to a Program Objective. The curriculum emphasis for eachProgram Outcome can be estimated using the expression in Figure 2. for (p = 0; p < M; p++) // each program outcome {programOutcome [p] = 0; for (q = 0; q < L; q++) // each course {for (r = 0; r < K; r++) // each course outcome {ProgramOutcome [p
defining the mass matrix (M) and the stiffness matrix (K) of thedynamic system. The size of the system may in general be N-by-N (N degrees-of-freedom). M x’’ + K x = F(t)By substituting x(t) = M-1/2 q(t) and pre-multiplying each side by M-1/2, the system is convertedto the equation shown below, where Ψ is the mass normalized stiffness matrix. I q’’ + Ψ q = M-1/2 F(t) Ψ = M-1/2 K M-1/2The eigenvalue problem associated with the mass normalized stiffness matrix is next solved todetermine the eigenfrequencies and eigenvectors for the system. A new matrix (P), called themodal matrix, is constructed using the orthonormal eigenvectors associated with the massnormalized
2003 American Society for Engineering Education Annual Conference & Exposition Copyright © 2003, American Society for Engineering Educationcompanies read like a list of Standard & Poor’s 500 or the Dow Jones 50 industrials. While thereare a lot more engineers working in industry than were sampled by the survey, most of theindustry respondents were supervisors and or managers, and are instrumental in making hiringdecisions. Table 2. Topics and activities surveyed in both questionnaires. Q Topics Q Activities 1 Benchmarking of 25 Open-ended problem 2 QFD/House of Quality 26 Creativity
negative) to “9” (very positive). The Page 8.431.5 “Proceedings of the 2003 American Society for Engineering Education Annual Conference & Exposition Copyright 2003, American Society for Engineering Education”first group of questions (Q # 1-6) were given to determine the level of student sophistication andinvolvement with internet, software, and other computer experiences. The responses show that thisgroup of students had extensive experience with spreadsheet (µ = 5.43) and in general software use (µ= 6.25). The second group of questions (Q # 7-12) related to general reaction to the overallexperience
) Angle of Attack radians beta (β) Sideslip Angle radians u x-component of velocity feet/second v y-component of velocity feet/second w z-component of velocity feet/second p Angular roll rate radians/second q Angular pitch rate radians/second r Angular yaw rate radians/second phi (φ) Roll angle radians theta (θ) Pitch angle radians psi (ψ) Yaw angle radians A State matrix B
(based on “Outcomes”)that demonstrate a continuous verifiable commitment of the program and its participants toimprovement. This differs from ABET 98, which addressed maintaining quality by simplyrequiring re-accreditation every six years. 2 Page 8.202.2 Proceedings of the 2003 American Society for Engineering Education Annual Conference & Exposition Copyright 2003, American Society for Engineering EducationABET expects a program to be defined by: q Curriculum q Objectives q
error than when doing these differentiations by hand. (The LDAE computer packagealso incorporates an automatic differentiation feature [8].)As part of their programming effort, the students developed flowcharts to represent the processof creating the equations of the Lagrangian DAEs from the expressions for energy, work, andconstraints that are the basis for the modeling approach taught in this course. One of these flowcharts is shown in Fig. 6, which illustrates the differentiations involved in creating the inertiamatrix M and the generalized effort vector Y of the Lagrangian DAE. The top row of the chartrepresents the variables and functions declared by the user before running the program.Displacement q and flow f are n-dimensional vectors
+ Welectric_other + Qinfiltration - Qexfiltration + Q radiation + Q water_in - Q water_out + Q make-up_air_in - Qmake-up_air_out − Qconduction .In this equation, some of the terms can be measured in a reasonable manner and others cannot.Although a direct measurement of all of quantities is not possible, Qload can be found from anenergy balance and is given as Qload = Wgeo_pump + Welectric_hps + m geo_loop cp ∆Tgeo_loop .All terms on the right-hand-side of this equation can be measured in a reasonable manner. Thecost of delivering a unit of Qload can then be written as Page 8.487.3 Proceedings of the 2003
Page 8.1084.7Proceedings of the 2003 American Society for Engineering Education Annual Conference & Exposition Copyright 2003, American Society for Engineering Education Figure 4 Diesel Cycle Output from TeachPistonResults of Piston-Cylinder Analysis # 1STATE T(K) P(kPa) V(cu.m) U(kJ/kg) S(kJ/kg) M(kg) 1 298.0 100.0000 .1200E-02 .00 5.41 .1397E-02 Polytropic Process: W = .3107 kJ Q = -.2324 kJ n = 1.1000 I = .026 kJ 2 375.2 1258.9260 .1200E-03 56.06
. The Y input was taken from the resistorof the resonance filter, scope still in X-Y mode. In this way we could observe the frequencyresponse of a series resonance circuit, measure 3db points and determine Q of the resonancefilter according to the following equation; fr Q = (3) f1-f2Where fr is the resonant frequency, and f1 and f2 are the lower and upper 3db points respectively.Setup is shown in Figure 3. . Figure 3. Setup for observing and measuring frequency response and the bandwidthA curve tracer was the
the venturimeter coefficient which in turn allows it to be used as a flow-measuring device. Thephysical experiment, shown in Fig. 1, involves measuring the pressure drop between the inlet andthroat sections of the venturimeter for a number of flowrates. The flow through the system isregulated by opening or closing a valve. The pressure reading in the piezometer tubes connectedto the inlet and the throat sections of venturimeter are recorded for the selected flowrate, and thecoefficient of venturimeter (cv) is calculated using the following equation. 2(P1 − P2 ) ρ Q&Actual = c v A2
stepless variation ofthe flow rate. The MPYE thus controls the flow rate regard its magnitude and direction.The MPYE valve operates between 0 and 10V. At 5V input, the flow rate is disabled. Asthe voltage input is decreased from 5 to 0V, the flow rate increases in the negativedirection. As the input voltage is increased from 5V to 10V, the flow rate increases in thepositive direction. Figure 4 below illustrates the output of the MPYE proportional controlvalve. The potentiometer outputs a voltage proportional to the position of the slide. Thepotentiometer operates between 0 and 10V. Q(l/s) Q (l/s) 0 Voltage Input
. • Critically thinking about how much of the information gathered is pertinent. • Critically thinking about how to present that information succinctly. • Paying particular attention to how and when to reference information and sources. • Consideration of the various formats you have to present the information, namely: o A one-page fact sheet; o A PowerPoint presentation; and o An oral presentation (with a brief question and answer, Q&A, session). Page 8.526.2 Proceedings of the 2003 American Society for Engineering Education Annual Conference & Exposition
determining the land use for each sub area. They thenapplied water use factors to determine water requirements. At this point a first cut at pipe sizeswas taken and pumps and a storage tank were added to the system. With the data assembled theH2 ONET program was run to evaluate pressures throughout the system. Since the students werewell versed in the use of AUTOCAD, using H2 ONET was a natural extension for them.However, there was still a learning curve both on how to utilize the program and how to evaluatethe results and make adjustments to the system design. The program made it easy to conduct“what if” questions and compare results of changes in pipe sizes. Several scenarios were runsuch as Q-maximum day plus fire flow in the city, Q-average day
. For this experiment, the students physically count the elbows, tees, contractions,valves, expansions and other instrumentation within the entire system. They alsomeasure the entire length of straight pipe that is contained by the fittings and valves. Inorder to determine how the fittings affect the system, the students identify theequivalent number of velocity heads for each piece of the system from publishedliterature. The data from the fittings and straight length of pipe is tabulated and a totaldischarge head is calculated. Since Equation 6 is dependent upon Q, the volumetricflow rate, the students use the data from the rotameter calibration in assigning a valuefor Q. For different values of Q, the students get a different value for
Engineers,such as (l) an ability to apply advanced mathematics through multivariable calculus, anddifferential equations; (m) a familiarity with statics, linear algebra and reliability; (n) an ability towork professionally in both thermal and mechanical systems areas including the design andanalysis of such systems; (o) a knowledge of contemporary analytical, computational, andexperimental practices; (p) a competence in experimental design, data collection, and dataanalysis; (q) a competence in the use of computational tools; (r) a knowledge of chemistry; and(s) knowledge of calculus-based physics.Under the criteria (a-s), Mechanical Engineering Faculty at AAMU are being challenged torevise the course content, depth and perspectives of the
(D uctile) m 1.5 in 6 y E = 30 x 10 psi n .5 in ν = .3 3 d .5 in ρ = .284 lb/in c 5 in S y = 26 kpsi t .75 in q 170 psi q t