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Displaying results 241 - 270 of 484 in total
Conference Session
Division Experimentation & Lab-Oriented Studies - Labs in Mechanical and Materials Engineering
Collection
2017 ASEE Annual Conference & Exposition
Authors
Ken Lulay P.E., University of Portland; Heather E. Dillon, University of Portland; Karen Elizabeth Eifler, University of Portland; Timothy A. Doughty, University of Portland; Daniel Anderson, University of Portland; Jose Israel Bastida De Jesus
Tagged Divisions
Division Experimentation & Lab-Oriented Studies
university, Heather Dillon worked for the Pacific Northwest National Laboratory (PNNL) as a senior research engineer.Dr. Karen Elizabeth Eifler, University of Portland I am a teacher educator with a special interest in teacher induction and retention.Dr. Timothy A. Doughty, University of Portland Dr. Timothy A. Doughty received his BS and MS from Washington State University in Mechanical and Materials Engineering and his Ph. D. from Purdue University. He has taught at Purdue, Smith College, and is now an Associate Professor of Mechanical Engineering at the University of Portland. From 2009 to 2001 he served as a Faculty Scholar with Lawrence Livermore National Laboratories and has served as the Dundon-Berchtold Fellow of
Conference Session
NSF Grantees’ Poster Session
Collection
2014 ASEE Annual Conference & Exposition
Authors
Rebecca A. Atadero, Colorado State University; Meena M. Balgopal, Colorado State University; Karen E Rambo-Hernandez, Colorado State University; Anne Marie Aramati Casper, Colorado State University
Tagged Topics
NSF Grantees Poster Session
Tagged Divisions
Division Experimentation & Lab-Oriented Studies
Paper ID #8700Project-Based Learning in Statics: Curriculum, Student Outcomes, and On-going QuestionsDr. Rebecca A Atadero, Colorado State University Dr. Atadero is an assistant professor in the Department of Civil and Environmental Engineering at Col- orado State University. She earned her Ph.D. in Structural Engineering from the University of California, San Diego. Her research interests include inspection, management and repair of existing structures, FRP for civil engineering application and engineering education.Dr. Meena M Balgopal, Colorado State UniversityDr. Karen E Rambo-Hernandez, Colorado State UniversityMs. Anne
Conference Session
NSF Grantees’ Poster Session
Collection
2014 ASEE Annual Conference & Exposition
Authors
Matthew W. Ohland, Purdue University and Central Queensland University; Catherine E. Brawner, Research Triangle Educational Consultants; Catherine Mobley, Clemson University; Richard A. Layton, Rose-Hulman Institute of Technology; Russell Andrew Long, Purdue University, West Lafayette; Clemencia M. Cosentino, Mathematica Policy Research; Margaret D. Sullivan, Mathematica Policy Research
Tagged Topics
NSF Grantees Poster Session
Tagged Divisions
Division Experimentation & Lab-Oriented Studies
Paper ID #9116Characterizing and Modeling the experience of Transfer Students in Engi-neeringDr. Matthew W. Ohland, Purdue University and Central Queensland University Matthew W. Ohland is Professor of Engineering Education at Purdue University and a Professorial Re- search Fellow at Central Queensland University. He has degrees from Swarthmore College, Rensselaer Polytechnic Institute, and the University of Florida. His research on the longitudinal study of engineer- ing students, team assignment, peer evaluation, and active and collaborative teaching methods has been supported by over $12.8 million from the National
Conference Session
NSF Grantees’ Poster Session
Collection
2014 ASEE Annual Conference & Exposition
Authors
Matthew W. Ohland, Purdue University and Central Queensland University; Richard A. Layton, Rose-Hulman Institute of Technology; Misty L. Loughry, Georgia Southern University; David Jonathan Woehr, University of North Carolina Charlotte; Daniel M. Ferguson, Purdue University, West Lafayette; Eduardo Salas, University of Central Florida; Kyle Heyne, University of Central Florida
Tagged Topics
NSF Grantees Poster Session
Tagged Divisions
Division Experimentation & Lab-Oriented Studies
Paper ID #9102SMARTER Teamwork: System for Management, Assessment, Research, Train-ing, Education, and Remediation for TeamworkDr. Matthew W. Ohland, Purdue University and Central Queensland University Matthew W. Ohland is Professor of Engineering Education at Purdue University and a Professorial Re- search Fellow at Central Queensland University. He has degrees from Swarthmore College, Rensselaer Polytechnic Institute, and the University of Florida. His research on the longitudinal study of engineer- ing students, team assignment, peer evaluation, and active and collaborative teaching methods has been supported by over
Conference Session
NSF Grantees’ Poster Session
Collection
2014 ASEE Annual Conference & Exposition
Authors
Stephen J. Krause, Arizona State University; Dale R. Baker, Arizona State University; Adam R. Carberry, Arizona State University; Terry L. Alford, Arizona State University; Casey Jane Ankeny Ph.D., Arizona State University; Milo Koretsky, Oregon State University; Bill Jay Brooks, Oregon State University; Debra M. Gilbuena, Oregon State University; Cindy Waters, North Carolina A&T State University; Brady J. Gibbons, Oregon State University; William Joseph Stuart P.E., Oregon Institute of Technology; Sean Maass; Candace K. Chan, Arizona State University
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NSF Grantees Poster Session
Tagged Divisions
Division Experimentation & Lab-Oriented Studies
Paper ID #10148JTF Web-Enabled Faculty and Student Tools for More Effective Teachingand Learning Through Two-Way, Frequent Formative FeedbackProf. Stephen J Krause, Arizona State University Stephen J. Krause is professor in the Materials Program in the Fulton School of Engineering at Arizona State University. He teaches in the areas of bridging engineering and education, capstone design, and introductory materials science and engineering. His research interests include strategies for web-based teaching and learning, misconceptions and their repair, and role of formative feedback on conceptual change. He has co-developed a
Conference Session
Pedagogical Innovations in Laboratory Education
Collection
2011 ASEE Annual Conference & Exposition
Authors
Murthy Kasi, North Dakota State University; Yaping Chi, North Dakota State University; G. Padmanabhan, North Dakota State University
Tagged Divisions
Division Experimentation & Lab-Oriented Studies
Lines LinesFigure 1. An example of a flownet(a)(b) Dam Cutoff Stream wall lines Equipotential linesFigure 2. Flow nets showing stream lines and potential lines for (a) a discharging well in anaquifer bounded by a stream parallel to an impermeable barrier (plan view) (slightly modified1), Page 22.1392.3and (b) groundwater flow beneath a dam with a cutoff wall (sectional view).Laboratory courseThe flownet experiment was
Conference Session
Division Experimentation and Lab-Oriented Studies - Best of DELOS
Collection
2017 ASEE Annual Conference & Exposition
Authors
Malia L. Kawamura, University of Illinois, Urbana-Champaign; Andrew G. Alleyne, University of Illinois, Urbana-Champaign; Erick Sutanto
Tagged Divisions
Division Experimentation & Lab-Oriented Studies
York University Tandon School of Engineering1,2. FeedbackInstruments produces process control laboratory modules for temperature control and mass flowrate control as shown in Figure 1. These modules use heat and mass as surrogates for chemicalreaction process control. Figure 1. Temperature and mass flow rate process control training systems3.In the absence of laboratory exercises that directly investigate process control of reactions, acommon approach in undergraduate chemical engineering courses is to focus on textbookproblems. Many undergraduate textbooks abstract away reactant and product names and insteaduse generic reagents4–9. For example, a usual problem formulation is AB  C , which meansadding reactant A and reactant B to
Conference Session
Unique Laboratory Experiments and Programs
Collection
2006 Annual Conference & Exposition
Authors
Kendrick Aung, Lamar University
Tagged Divisions
Division Experimentation & Lab-Oriented Studies
they provide hands-onexperiences and demonstrate applications of theoretical principles to the real-world engineeringproblems. There are two required laboratory classes in the curricula of mechanical engineering atLamar University: MEEN 3311 Measurements Lab and MEEN 4313 Materials Lab. These labcourses were the principal courses designed to meet the ABET EC 2000 outcome (b) related toexperimentation: an ability to design and conduct experiments as well as to analyze and interpretdata. This paper will discuss the Measurements Lab, a core junior level course for mechanicalengineering majors in the Department of Mechanical Engineering at Lamar University. Thecourse is a two-credit hour class with one 1-hour lecture and one 3-hour lab session per
Conference Session
Innovation in Laboratory Studies and Outreach Programs
Collection
2009 Annual Conference & Exposition
Authors
John Gumaer, Central Washington University
Tagged Divisions
Division Experimentation & Lab-Oriented Studies
% 0.0% 0.0%PICKit1 Use Positive Comments N/A N/A N/A 83.3%PICKit1 Use Negative Comments N/A N/A N/A 0.0% Page 14.1145.6The average course grade for the class as a whole increased from a B- to a B+. The overallnumerical score on the course evaluation did not change significantly. Written course evaluationcomments indicated that students did not feel constrained by limited access to lab facilities ashad been the case in the years prior to 2004. Written comments on the student evaluationsindicated that a majority of the students in the 2004 class liked the
Conference Session
Laboratory Experiences in Mechanical, Materials and Thermal Systems
Collection
2013 ASEE Annual Conference & Exposition
Authors
David R Veazie P.E., Southern Polytechnic State University
Tagged Divisions
Division Experimentation & Lab-Oriented Studies
A B C CathodeFigure 3. (Left) A Si wafer containing five electrodeposited Ni80-Fe20 test specimens; and (Right) an actual Ni80-Fe20 test specimen (top) with schematic drawing (bottom) of a reference ASTM dog-bone shape Ni80-Fe20 test specimen depicting dimensions (in millimeters).Mechanical Properties and TestingIn this study, electrodeposited Ni80Fe20 test specimens were fabricated for mechanical, magnetic,and composition testing. Sharpe7 states that tensile tests have the advantage of uniform stress andstrain fields, which is why they are used to determine mechanical properties at larger scales.However, they have disadvantages at smaller scales in that larger forces are required
Conference Session
Unique Laboratory Experiments and Programs
Collection
2006 Annual Conference & Exposition
Authors
Jason Yao, East Carolina University; Philip Lunsford, East Carolina University
Tagged Divisions
Division Experimentation & Lab-Oriented Studies
andtruth tables, and then they are required to implement digital logic functions withLabVIEW’s graphical function modules. Objectives: 1. Learn basic rules of Boolean algebra. 2. Realize digital logic functions from truth tables. 3. Understand De Morgan’s Theorem. 4. Design simple digital logic.Figure 3 depicts a LabVIEW interface that is used in this lab session. The students firstclick on switches on the interface and examine the change of the indicator to find out thelogical relationships between input (switches A, B, C, and D) and output (indicators for“A and B” and “C or D”). Figure 4 is the two LabVIEW diagrams to implementAND/OR operations.Other logic gates, including NAND, NOR, XOR, etc. are also implemented in a
Conference Session
Instrumentation and Controls Laboratories
Collection
2008 Annual Conference & Exposition
Authors
Philip Brach, University of the District of Columbia; Ahmet Zeytinci, University of the District of Columbia
Tagged Divisions
Division Experimentation & Lab-Oriented Studies
thetechniques used for the adjustment of observed measurements. Perhaps it was just the result ofinnate judgment that resulted in the methods for adjusting measurements to agree with knownphysical relationships. For example, it is obvious that the sum of the interior angles in a circle asshown in Figure-1 must be equal to 360º. Σ (A + B + C + D) = 360º A Plane Geometry of a Circle Page 13.1252.2 D B Fig 1 C (Defined relationship
Conference Session
Unique Laboratory Experiments and Programs Poster Session
Collection
2007 Annual Conference & Exposition
Authors
Samuel Lakeou, University of the District of Columbia; Tinh Dinh, University of the District of Columbia; Abiyu Negede, University of the DIstrict of Columbia
Tagged Divisions
Division Experimentation & Lab-Oriented Studies
Digital to Analog Converter Actuators (DAC) Fig. 1 Typical CPLD-Based Controller CircuitA typical circuit design employing a CPLD requires the following steps, as depicted in thedesign flow of Fig. 2 : a) Design entry; b) Design Simulation; c) Design synthesis; and d) Device programming.“Design Entry” provides a description of the required circuit based on the design specifications.The simplest design entry is achieved through schematic capture of the circuit from a library ofcomponents provided by the design tools such as the Integrated Synthesis Environment (ISE)1from
Conference Session
DELOS Poster Session
Collection
2008 Annual Conference & Exposition
Authors
Robert Szlavik, California Polytechnic State University
Tagged Divisions
Division Experimentation & Lab-Oriented Studies
POLY command, between the potential across the resistor in Figure 3 (b) and the potential across the circuit elements in Figure 2. The initial potential on the capacitor is zero which constitutes the initial condition C(0) = 0 #/cell. Formulation of an equivalent circuit model that encompasses the dynamic behavior of thesystem is not unique. Figure 3, parts (a) through (e), illustrate the generation of the variouscircuit parameters associated with the network shown in Figure 2. Branch current and nodepotential relationships to specific parameters or variables are indicated on the circuit diagrams asrequired for clarity. Figure 3. Equivalent circuits for generation of parameters and branch currents for
Conference Session
Unique Laboratory Experiments and Programs
Collection
2006 Annual Conference & Exposition
Authors
Charles Neuman, Queensborough Community College; David Lieberman, Queensborough Community College; Don Engelberg, Queensborough Community College; Alex Flamholz, Queensborough Community College; Paul Marchese, Queensborough Community College; George Tremberger, Queensborough Community College; Tak Cheung, Queensborough Community College
Tagged Divisions
Division Experimentation & Lab-Oriented Studies
explanation of an uncertainly formula derivation.RLC circuit with hysteresis lossA series RLC circuit can be set up with a sinusoidal source. A dual trace scope is used to analyzethe circuit. The scope usually has coaxial inputs so one side is always grounded. The voltageacross (L + C) and C can be measured and data is entered into Excel. Sinusoidal datamanipulation is easily implemented in Excel so the voltage across any two elements can begenerated in Excel. Lissajous figures can also be generated by Excel. Lissajous figures are afamily of curves described by the parametric equations x(t )= A cos (at-b) and y(t) = B cos (ct-d).The figures generated by Excel can be compared to the scope data in x-y mode as well as thecalculated data using the
Conference Session
Innovative Uses of Technology and Techniques for Laboratory Exercises
Collection
2012 ASEE Annual Conference & Exposition
Authors
David R. Veazie, Southern Polytechnic State University; Daniel Edward Ephraim
Tagged Divisions
Division Experimentation & Lab-Oriented Studies
etching process takes approximately five hours—theresults are five nickel iron dog-bone test specimens. The five dog-bone test specimens are thenrinsed and dried using deionized water and compressed nitrogen. Figure 3 shows a dog-bonespecimen with dimensions that is ready for mechanical testing. Negative Power Supply A B D C Cathode Figure 2. A Si wafer containing five electrodeposited Ni80-Fe20 test specimens. Gage Area Figure 3. (Left) Actual Ni80-Fe20 test specimen; and (Right) schematic drawing of a dog-bone shape Ni80-Fe20 test specimen depicting
Conference Session
Unique Laboratory Experiments and Programs Poster Session
Collection
2007 Annual Conference & Exposition
Authors
Robert Szlavik, California Polytechnic State University
Tagged Divisions
Division Experimentation & Lab-Oriented Studies
electrophysiologyrelated simulations since it is possible to simulate hybrid circuits with both biological andsynthetic electronic components.Bibliography1. N. K. Sinha, Control Systems, New York: Holt, Rinehart and Winston, 1988.2. R. S. Tucker “Large-signal circuit model for simulation of injection-laser modulation dynamics,” IEE Proceedings, Part I, vol. 128, no. 5, pp. 180-184, 1981.3. B. Bunow, I. Segev, and J. Fleshman, “Modeling the electrical behavior of anatomically complex neurons using a network analysis program: excitable membrane,” Biol. Cybern., vol. 53, pp. 41-56, 1985.4. R. B. Szlavik, A. K. Bhuiyan, A. Carver, and F. Jenkins, “Neural-electronic inhibition simulated with a neuron model implemented in SPICE,” IEEE Transactions
Conference Session
Fluid Mechanics Experiments and Laboratories
Collection
2008 Annual Conference & Exposition
Authors
MURAT OKCAY; BILGEHAN UYGAR OZTEKIN
Tagged Divisions
Division Experimentation & Lab-Oriented Studies
in Appendix B.7. DiscussionThe use of PIV technology in fluid flow research is well established and widely accepted.Results from the measurements provide very valuable information about the flow fields to theresearchers and engineers of multiple disciplines. Consequently the aerodynamic design of anautomobile can be improved and the combustion process in the engine inside the sameautomobile could be optimized. Nowadays the technology has also been applied in the area ofMEMS, biomedical, and physiological research and in many other areas.Fluid mechanics is a highly visual subject. During the teaching process one must take fulladvantage of this fact. FLOWEXTM ePIV gives the opportunity to achieve this to its full extentmaking this technology
Conference Session
ELOS Best Paper Nominations
Collection
2011 ASEE Annual Conference & Exposition
Authors
Li Tan, Purdue University, North Central; Jean Jiang, Purdue University North Central
Tagged Divisions
Division Experimentation & Lab-Oriented Studies
y Vin x PP 6 Bit 2 Vout Sense A AD 6 PP 5 Bit 3 Vout Sense B xAnalog input PP 4 Bit 4 GND signal Signal 68HC12 AD557 PP 3 Bit 5 GND 10 uF conditioning Microcontroller Ri Rf
Conference Session
Mechanical and Architectural Engineering Laboratories
Collection
2011 ASEE Annual Conference & Exposition
Authors
Hamadou Saliah-Hassane, University of Quebec, Montreal; Maarouf Saad, Ecole de Technologie Superieure; Willie K. Ofosu, Pennsylvania State University, Wilkes-Barre; Karimou Djibo, LICEF Research Center; Hassane Alzouma Mayaki, UCAD and LICEF Research Center, Montreal, Canada.; Mamane Moustapha Dodo Amadou ing., École de technologie supérieure
Tagged Divisions
Division Experimentation & Lab-Oriented Studies
detailed description of thesoftware and hardware used in our test scenario are the following:The ImplementationThe Cloud is based on virtualization components [4]. It offers flexibility of resource useand installation of custom applications. The Cloud by his role allows users to connect toWeb services without installing or buy special equipment. This new concept of remotelaboratory in the Cloud Computing Era, instead of what we and all other involved inresearch on virtual learning environments are most of the time doing for years[1-3],mainly helps in three ways: a) no or little time and money is spent to set a sophisticatedlearning management environment; b) no more need to buy and install remote accessibledevices in a centralized laboratory and
Conference Session
Division Experimentation & Lab-Oriented Studies: Best Papers
Collection
2016 ASEE Annual Conference & Exposition
Authors
Kristen Ann Thompson, Loras College; Danial J. Neebel PE, Loras College
Tagged Topics
Diversity
Tagged Divisions
Division Experimentation & Lab-Oriented Studies
mathematical operations to convertthe rotation rate to a flow velocity. The created VI, shown in Figure 1, calculates both the linearvelocity of the fluid, the mass flow rate, and the volumetric flow rate. The VI also displays theoutput from the sensor on a chart. (a) (b) Figure 1: VI in LabVIEW™ to measure flow rate from sensor. (a) User Interface (b) Program code.Task 2: Water Flow RateIn the study of fluid mechanics one of the fundamental equations, = vA, relates the massflow rate, , to the velocity of the fluid, v, by multiplying the velocity by the area, A, of thepipe, and the density of the fluid, ρ. Students investigate the
Conference Session
Design of Laboratory Experiments
Collection
2006 Annual Conference & Exposition
Authors
Bradley Burchett, Rose-Hulman Institute of Technology
Tagged Divisions
Division Experimentation & Lab-Oriented Studies
B ? È0 0 Ù É D2 D2 Úand ÇK 0 0 0 C?È 1 É0 0 K2 0ÙÚ .Where K1 and K2 are static gains, D2 is a combination term * + D2 ? J A J d - m p r 2 - m 2p l cg2 r 2and J A is the pendulum moment of inertia about its mounting joint
Conference Session
Division Experimentation & Lab-oriented Studies: Mechanical Engineering and Control
Collection
2015 ASEE Annual Conference & Exposition
Authors
Julianne Vernon, University of Michigan, College of Engineering; Cynthia J. Finelli, University of Michigan; Noel C. Perkins, University of Michigan; Bradford G Orr, University of Michigan
Tagged Divisions
Division Experimentation & Lab-Oriented Studies
. These scores are not significantly different (p-value #1 = 0.797 and p-value#2 = 0.621)Only one of the fourteen DCI concepts for Intervention #1 had statistically significant differencewhen compared to Control #1. The score on concept 8 (zero velocity does not imply zeroacceleration and conversely) for students in the Intervention #1 is statistically significantlyhigher than that for students in Control #1 (53% ± 3.9% versus 26% ± 6.0%, p<0.0001). Thisconcept measures a student’s understanding that: “An object can have (a) nonzero accelerationand zero velocity or (b) nonzero velocity and no acceleration.” Though the concept isn’t directlylinked to either of the i-Newton experiments for that specific term, the concept was covered inthe
Conference Session
Design of Lab Experiments II
Collection
2007 Annual Conference & Exposition
Authors
Gerald Recktenwald, Portland State University; Robert Edwards, Pennsylvania State University-Erie
Tagged Divisions
Division Experimentation & Lab-Oriented Studies
of the thermocouples and the metal. Despite the anomalies in thetemperature measurements, the trend in the data is clear: the black toast gets substantially hotter Page 12.1562.13than the shiny toast. Figure 7. Temperature of individual thermocouples attached to each piece of toast. Figure 8. Average temperature of the thermocouples for each piece of toast. Figure 8 is a plot of the average temperature histories for the data in Figure 7. Averaginghides the variability between thermocouples attached to a given metal sample, and it makes theoverall trends easier to see. Three vertical reference lines labeled A, B, and C
Conference Session
Division Experimentation & Lab-oriented Studies Electrical Engineering and Circuits
Collection
2017 ASEE Annual Conference & Exposition
Authors
Carl Iolani Pettiford, Liberty University
Tagged Divisions
Division Experimentation & Lab-Oriented Studies
using multiple sensors. Each team collectedreadings from their own sensor unit as the magnetic source was moved about the space betweenthe sensors. The data collected from each team was distributed so that all teams had a copy ofthe combined data set. A MATLAB program was used for post-processing the multipoint dataso that the combined results from all the sensors could be viewed for analysis, as shown inFigure 5.Figure 4: Student Lab Team photo of Hardware Sensor configuration for Multipoint Experiment (Sensors located at positions A,B, C, and D).Figure 5: MATLAB software interface for Multipoint post-analysis.The effectiveness of the lab tool was assessed from the student lab reports. Students are requiredto use a Lab Report template (shown
Conference Session
Distance, Remote, and Virtual Experiments
Collection
2007 Annual Conference & Exposition
Authors
Richard Chiou, Drexel University; Yongjin Kwon, Drexel University; Shreepud Rauniar, Drexel University; Horacio Sosa, Drexel University
Tagged Divisions
Division Experimentation & Lab-Oriented Studies
INPUT LOGIC OUTPUT CR-1 10001 SW-1 2 10001 1 00001 00001 L4 RL 10002 SW-2 SW-2 10002 2 00002 00002 L4 3 CR-2 4 CR-1 4 GL (a) (b)Figure 3. (a) Relay ladder logic diagram in comparison with (b) PLC ladder logicdiagram.Figure 4: Programmable logic operations with
Conference Session
Innovations in Mechanical Engineering Experiments and Labs
Collection
2007 Annual Conference & Exposition
Authors
Afshin Goharzadeh, The Petroleum Institute; Peter Rodgers, The Petroleum Institute; Christian Mandel, The Petroleum Institute
Tagged Divisions
Division Experimentation & Lab-Oriented Studies
) Side View b) Top View Figure 2. Schematic diagram for vertical jet flow characterization. The entire experiment is placed in a rectangular Plexiglass tank, figure 3, with theexternal enclosure filled with Dow Corning silicon oil (DC 550) in order to avoidcurvature issues during the flow visualization. The fluid flow is obtained using a lasersheet adjusted in vertical direction and CCD camera perpendicular to laser light, figure 3.A field of view of 0.5 x 0.4 m2 is obtained. Flow meter External square CCD camera enclosure
Conference Session
Division Experimentation & Lab-Oriented Studies: Bring-Your-Own-Experiments 1
Collection
2015 ASEE Annual Conference & Exposition
Authors
Nebojsa I Jaksic, Colorado State University - Pueblo
Tagged Divisions
Division Experimentation & Lab-Oriented Studies
using the 3D pen. When changing filaments, the filament that isalready in the pen can be partially unloaded by pressing the Back button. When the motor stopsmoving the filament, the remaining filament needs to be pulled out by hand the rest of the way. Page 26.317.4 a b Figure 2. Ahiro 3D pen: a) side view, b) rear viewAhiro was the first 3D pen used in the departments’3D-printing lab. During the trial run, itstopped extruding material after about five minutes of use. The 3D pen would not feed filamentproperly. Under closer inspection it was discovered
Conference Session
Mechanical and Architectural Engineering Laboratories
Collection
2011 ASEE Annual Conference & Exposition
Authors
Robert McMasters, Virginia Military Institute; Ryan Taylor, Virginia Military Institute
Tagged Divisions
Division Experimentation & Lab-Oriented Studies
negative as the rocket starts to fall. Figure 4shows a plot of this computed height as a function of time. As can be seen in this figure, thefinal calculated rocket height is approximately 55 meters. There was some variability in thiscalculated value between students of ten percent or so due to laboratory measurementuncertainties. The calculation of uncertainty was a required component of the lab report for therocket project and was calculated using the standard root sum error expression  R  R  R 2 2 2    R   a    b   ...   z  (9
Conference Session
NSF Grantees’ Poster Session
Collection
2014 ASEE Annual Conference & Exposition
Authors
Zhiqiang Wu, Wright State University; Bin Wang, Wright State University; Chi-Hao Cheng, Miami University; Deng Cao, Central State University; Ashraf Yaseen
Tagged Topics
NSF Grantees Poster Session
Tagged Divisions
Division Experimentation & Lab-Oriented Studies
received waveforms. Software radio hasled the trend in the wireless communication arena to design and build wireless communicationsystems using reconfigurable software rather than fixed hardware. We see this as an opportunityfor STEM education innovation by bringing in this new technology within a limited budget. Transmitter Software Based RF Frontend Communication DAC Receiver RF Software Based Frontend Communication ADC Figure 1. SDR (a) A typical SDR diagram; (b) A USRP board.We have