(3D-printing failures)due to errors in design, operation, part placement, material selection, etc. and the failures due to3D printers’ malfunctions (3D printer failures).3D-Printing Failures 3D-printing failures can be classified into three types based on their severity: (a)catastrophic 3D-printing failures where the 3D printers are damaged; (b) complete 3D-printingfailures where the failed objects cannot be repaired, and (c) partial 3D-printing failures where theobjects can be repaired by using some post-printing processes.Sometimes, early during printing, a corner of the printed part warps up and separates from theprinting platform. Since this corner is now higher than the tip of the extruder nozzle, the nozzlecan push all the built
A CAD Rendering of the Tower (Mast) of Candy Crane Page 26.1114.4 Figure 3.3 A CAD model of the Jib (Horizontal Beam)a) A CAD Model of the Candy Crane Assembly b) A Candy Crane Prototype Page 26.1114.5 Figure 3.4 Candy Crane a) A CAD Model b) A Physical Prototype with its Control unit Figure 3.4 Emulator4. Electrical/Electronic DesignThe electrical and electronics design includes circuit design that includes the use of candy cranecontroller, emulator controller, touch sensors (limit switches), and wireless communicationsystem. Figure 4.1 is the circuit
higherrotation speeds, it will seem as if the wheels are moving forwards but slowly. This phenomenoncan be seen in the following YouTube video. In this case we are under-sampling, or sampling ata too low rate relative to the frequency of the wheel’s rotation, and the wheels spinningbackwards is our vision experiencing aliasing.http://www.youtube.com/watch?v=jHS9JGkEOmA Page 26.717.10 In the image below, we see two cases (case A and case B). Remember our brain samplesfor image processing. Imagine you’re looking at the wheel in case A, the first time you saw thewheel it was at position f1 and the next time you were able to make out the position of
“because you don’t have the resources or the equipment or the knowledgethat is available out in the world”13. These Makers collaborate together to share information andexperiences within the community14. This community populates maker spaces and hackerspaces15 and gather with Makers in commercial spaces like Tech Shop16 and Maker Bench17.This study works alongside a larger project to explore if Makers can be considered engineers andvice versa2.B. LeadershipLeadership can be defined as having the knowledge and skills to lead a team in achieving goals3.Engineering leadership is often determined by an analysis of what leaders in engineering do18.Leaders should be lifelong learners, be service-oriented, express a positive attitude, balance theirlives
. Page 26.1447.6Table 4.Question MatrixCategories/Dimension A. Knowledge B. Abilities Behaviors1. Initiative/Confidence 1A 1B 1C2. Communication 2A 2B 2C3. Interpersonal Interaction 3A 3B 3C4. Teamwork 4A 4B 4C5. Engagement 5A 5B 5CCognitive interviewsAfter developing 60 possible survey questions regarding competencies and 4 user questions, twocollege recruiters were identified to assist with improving the survey instrument
principles.Although the exact definition of inquiry-based instruction varies somewhat between differentinvestigators, we will use the defining features offered by Laws et al.1 and highlighted by Princeand Vigeant2 (see Table 1). Proceedings of the 2015 American Society for Engineering Education/Pacific South West Conference Copyright © 2015, American Society for Engineering Education 592 Table 1. Elements of Inquiry-Based Learning Activities. (a) Use peer instruction and collaborative work (b) Use activity-based guided-inquiry curricular materials (c) Use a learning cycle
. Proceedings (p. 1). Institute of Industrial Engineers-Publisher.3 Silberman, M. (1996). Active Learning: 101 Strategies To Teach Any Subject. Prentice-Hall, PO Box 11071, Des Moines, IA 50336-1071.4 Meyers, Chet, and Thomas B. Jones. Promoting Active Learning. Strategies for the College Classroom. Jossey-Bass Inc., Publishers, 350 Sansome Street, San Francisco, CA 94104, 1993.5 Prince, M. (2004). Does active learning work? A review of the research. Journal of Engineering Education-Washington, 93, 223-232.6 Smith, K. A. (1995, November). Cooperative learning: Effective teamwork for engineering classrooms. In fie (pp. 2b5-13). IEEE.7 Faust, J. L., and Paulson, D. R. (1998). Active learning in the college classroom. Journal
all non-engineering degree programs. At University B, however,the engineering physics degree program had a Choice Value just above the physics and appliedmathematics and statistics degree program Choice Values. Table 2: Total choice values by degree program at five diverse institutions. Choice Values Engineering Degree Program (all B.S.) CU Boulder Univ. B Univ. C Univ. D Univ. E RU/VH# RU/H Mast. L Mast. M Bacc/Div Aerospace Engineering Sciences 185.8 8.5
measurements, and do so in teams. Previous projects developed for the freshmanclinic sequence have been described extensively and include topics ranging from flashlightfabrication and design and reverse engineering a coffee machine4,5 to detailed exploration of thehuman body6. Many of the projects conducted in FECI satisfy ABET student outcomerequirements. In particular, the course overall aims to meet objectives a, b, d, g, k of the ABETCriteria for Accrediting Engineering Programs7.To meet both the course and ABET objectives, a project inspired by the Consumer Reportsorganization was developed and implemented for the first time in Fall 2011. It has subsequentlybeen used in FECI in the Fall 2011, 2013, and 2014 semesters. The project was designed to
.) Page 26.1558.6Figure 1(b). Visualization of a single user’s behavior during a video watching session, showingcases of speed changing (vertical blue lines mark the time of each speed change). The passing ofeach minute marker as the student watches the video is represented by a black dot. (VideoLocation on the vertical axis represents the user’s location within the video in seconds, whileStudent Timeline on the horizontal axis represents real time in hours:minutes:seconds.)Figure 1(c). Visualization of a single user’s behavior during a video watching session, showingmultiple cases of jumping. Note that the black “watching” lines seem horizontal due to therelatively short timescale on the horizontal axis in this example (the whole horizontal
engineering students’ approaches to WSPsThe current study builds on previous empirical research about engineering students’ approachesto a specific WSP: water shortage in Jordan. In a phenomenographic study, we previouslyidentified four distinct approaches towards the problem1,2. In an order of increasing complexity,these approaches are called (A.) simplify and avoid, (B.) divide and control, (C.) isolate andsuccumb, and (D.) integrate and balance. Approach A is characterized by a general lack ofsincere engagement with the problem. Approach B represents an instrumental approach todealing with the problem. The problem is assumed to be divisible into independent parts that canbe solved in isolation from each other. Approach C differs from approach B in
comparative literature review.,” ACM Comput. Surv., vol. 38, no. 3 Article 7, 2006. [2] E. Lindsay and M. C. Good, “Effects of laboratory access modes upon learning outcomes,” Educ. IEEE Trans., vol. 48, no. 4, pp. 619–631, 2005.[3] J. E. Corter, J. V Nickerson, S. K. Esche, C. Chassapis, S. Im, and J. Ma, “Constructing reality: A study of remote, hands-on, and simulated laboratories,” ACM Trans. Comput. Interact., vol. 14, no. 2, p. 7, 2007.[4] B. Aktan, C. A. Bohus, L. A. Crowl, and M. H. Shor, “Distance learning applied to control engineering laboratories,” Educ. IEEE Trans., vol. 39, no. 3, pp. 320–326, 1996.[5] Labshare, “The
an opportunity for our students to reflect on their experience with test benches in lab.CPLD Design ProcedureThe following outlines how our students use ISE with a CPLD. Students first produce adescription of the desired logic circuit, our emphasis is on using schematics like that in Figure 1.The inputs A and B are to the left and the output F is to the right. Figure 1: Example circuit schematicNext, produce a test bench file that describes a sequence of input signals. While a test bench canbe made to evaluate the resulting outputs, our emphasis is on visual inspection of the simulationresults. In Figure 2 we can see that the circuit behaves like an exclusive-OR gate. Figure 2
for Team 1 and Appendix C for Team 2. Images of the team’s configuration, gestures, andvisual elements at specific intervals during the analyzed interactions are presentedchronologically in Appendix B for Team 1, and Appendix D for Team 2. Select sections of thetranscripts and select figures are repeated in the analysis below; figures whose captions beginwith the letters C or D can be found in Appendix C or Appendix D respectively.5.1.1. Team 1 - an example of not togetheringOur analysis of Team 1 left us with the image of multiple solitudes. Although the team membersfreely raised issues, stated ideas and opinions, and individually seemed to try to be productive,their discussions rarely produced a decision or created any kind of shared
the mesh equation game.7. AcknowledgmentsThis work was supported by the National Science Foundation through the TransformingUndergraduate Education in Science, Technology, Engineering and Mathematics Program underGrant Nos. DUE-1044497 and DUE-1323773. We thank Drs. J. Aberle, M. Ardakani, R. Ferzli,S. Goodnick, R. Gorur, G. Karady, Hongwei Mao, B. Matar, L. Sankar, Donghoon Shin, MengTao, C. Tepedelenlioglu, T. Thornton, D. Vasileska, Chao Wang, Hongbin Yu, and Hongyu Yufor using our software in their sections of EEE 202 at ASU; A. Holmes for using it in his courseECE 2630 at the University of Virginia; and Y. Astatke for using it in his course EEGR 202 atMorgan State University. We thank Daniel Sayre of John Wiley & Sons, Inc. for
' regulation of motivation. Journal of Educational Psychology, 90(2), 224-235.[10] Zimmerman, B. J. (2008). Investigating self-regulation and motivation: Historical background, methodological developments, and future prospects. American Educational Research Journal, 45(1), 166-183.[11] Zumbrunn, S., Tadlock, J., & Roberts, E. D. (2011). Encouraging self-regulated learning in the classroom: A review of the literature. Metropolitan Educational Research Consortium (MERC).[12] Wolters, C. A., Yu, S. L., & Pintrich, P. R. (1996). The relation between goal orientation and students' motivational beliefs and self-regulated learning. Learning and Individual Differences, 8(3), 211-238.[13] Pintrich, P. R. (2000). An achievement goal
Description DE2 Board A 8-bit instruction/data (in HEX) on SSD 4 and 5. This instruction is entered using switches (C) B 8-bit memory location in on-board RAM displayed on SSD 0 and 1. This address is entered using switches (D) C Switches used to enter 8-bit instruction. Switch 15 (left) is the MSB and switch 8 (right) is the LSB. D Switches used to enter 8-bit memory address. Switch 7 (left) is the MSB and switch 0 (right) is the LSB E Push button 0 used to write the instruction
convertercontrols the output power [2]. This kind of converters is designed in order to operate in maximum powerranges. This method decreases the costs of the system. Figure 1. An example of hybrid electric energy systemA. Economic Aspect of Hybrid Electric Energy SystemsUsing a hybrid electric energy system can lower the costs of consumed energy; also increase the reliabilityand control of the system. A wind/photovoltaic hybrid energy system can be the best option for isolatedplaces [4]. Sometimes due to high costs of required equipment or administrative costs, supplying the powerfrom main network is more economic [5].B. Application of Hybrid Energy in Power SystemsHere are some main advantages of using hybrid electric energy
. Page 26.170.2All important files created or modified during this project can be found at a stable locationonline4 for users to review at any point in time, and will provide the proper configuration orsource code for the project step in question. Also included is a detailed 145-step guide for thecompletion of all steps in this project, and is more lengthy and explicit than what is covered here. Figure 1: Diagram of Raspberry Pi Model BBeing slightly larger than a credit card and armed with an array of ports for input and output, theRaspberry Pi comes in two models: Revision 1.0 boards (Model A) and Revision 2.0 boards(Model B). Shared features include a Broadcom BCM2835 system on a chip [a 700MHz ARM11family central processing
and see if it will increase the awareness of the brain. It will give us moreclues regarding brain functions. The result will lead to better control of productivity. These resultsare necessary to figuring out how to stimulate relaxation without external influences such as place,material, and moment. © American Society for Engineering Education 2015 2015 ASEE Northeast Section ConferenceReferences1 S. Phongsuphap and Y. Pongsupap, “ Analysis of heart rate variability during meditation by a pattern recognition method,” Computing in Cardiology, vol. 38, pp. 197-200, 2011.2 M. A. Vazquez, J. Jin, J. Dauwels, and F. B. Vialatte, “ Automated detection of paroxysmal gamma waves
-dimensionalconstruct of interest, and the parameters aj, bj, and cj, for the jth item. a j ( i b j ) e (1) P ( X ij | i ; a j , b j , c j ) c j (1 c j ) a ( b ) 1 e j i jThe difficulty (or threshold) parameter bj is understood to be “on the same scale” as θ, allowingfor the matching of items and examinees. The discrimination (or slope) parameter aj determinesthe rate of ascent from the lower asymptote to 1. Finally, cj
components: (1) mechanical hardware; (2) electronics hardware; and (3)control software. The integration of these components yields varying levels of manufacturingtool cost, reliability and accuracy.2.1.1 Mechanical HardwareMulti-axis CNC motion can be generated using one of four methods: (1) moving gan-try/stationary bed Figure 2-1 (A & B); (2) moving gantry/moving bed Figure 2-1 (C & D); (3)stationary tool/moving bed Figure 2-2 (E & F); and (4) delta machine Figure 2-2 (G & H). Thecharacteristics and benefits of each are listed in Figure 2-1.The strategy differences in generating linear motion can be neglected in larger commercial CNCmachinery as they have been developed to compensate for loses. For example, a moving bed sys-tem
character, Jack, witnesses a traffic accident at the major intersectionof a town and then invites a player to help him fix the faulty traffic light system with the rightlogic specified in Fig. 1 (b). Rather than rely on dry instructional prompts, the game introduces Page 26.1523.3the player to an artificial intelligence (AI) that guides him/her through the actions necessary torepair the logic circuit. Meantime, the AI presents learning roadmap to the player, one of themetacognitive interventions in the game to show the key milestones and actions that might betaken in the design process as seen in Fig. 2 (a). While the player walks through the map
, the factorial validity of the decision-makingquestionnaire was tested. The researchers predicted that: (a) indicators related to group decision-making processes would load appropriately on three factors (Processing Information,Understanding Decisions, and Processing Alternatives), (b) error terms would be uncorrelated,and (c) no items would cross-load. The factors were permitted to covary based on the hypothesisthat they are related facets that constitute the overall decision process. The hypothesized modelfor the factorial structure of effective group design decision making is in Figure 1. Figure 1. Hypothesized CFA Model for effective design decision making.* An error during creation of the revised survey led to the
2.057 1.530 2.211 1.600 Table 2: Input factor and levels investigated Name Low High Factor A Type Rice Salt Factor B Density Free Tap Factor C Tag Position Front Back Free = Free flow density Tap = Tap density (after vibration) Page 26.1347.7 Table 3. Design matrix for the factor investigation. Std Runs A
Figures 2 and 4 are performed by calling a number of other subVIs designed by theauthor. In the development of several of these subVIs, various computing and programming featuresof MATLAB were utilized. The block diagram of the two main VIs presented in Figures 2 and 4are provided in Figures 5(A) and 5(B). The specific details involved in the actual programming ofthese VIs are not the main focus of this paper and therefore are not included here.Creation of Web Published LabVIEW Virtual InstrumentsPrior to the utilization of the VIs described in the previous section, these VIs were converted intoHTLM files so that they can be accessed and ran by the author in various classroom locations oncampus. The four stages involved in the conversion of a
. Page 26.1043.7 Figure 2. Project manual specifications: (a) contents; and (b) formatting. Figure 3. Exhibits of student works of the joint course project.Assessment results and discussionThrough the joint course project, instructors collected the assessment data following theassessment plan specified in the preceding Table 1. Each SLO was assessed through multiple Page 26.1043.8measures. For each direct measure, instructors developed certain metrics and grading rubrics toassess relevant student assignments and activities. For instance, Model & Design Documentationis a direct measure utilized to assess SLO 1
://www.abet.org/uploadedFiles/Accreditation/Accreditation_Step_by_Step/Accreditation_Documents/Curre nt/2013_-_2014/eac-criteria-2013-2014.pdf14. Jones, B. D. (2009). Motivating students to engage in learning: The MUSIC model of academic motivation. International Journal of Teaching and Learning in Higher Education, 21(2), 272-285.15. Brogan, D.S., Lohani, V.K., and Dymond, R.L., 2014. Work in Progress: The Platform-Independent Remote Monitoring System (PIRMS) for Situating Users in the Field Virtually. Proc. 2014 ASEE Annual Conference & Exposition. Indianapolis, Indiana.16. McDonald, W.M., Lohani, V.K., Dymond, R.L., Brogan, D.S., Bradner, A., 2014. Integrating a Real-Time Environmental Monitoring Lab into University
Institute ofChemical Engineers (AIChE), the discipline’s major professional society. The overall objectiveis to lower the activation barrier for using conceptual instruction and assessment so that manymore chemical engineering faculty will incorporate concept-based learning into their classes.The specific objectives of this project are to:1. Develop the AIChE Concept Warehouse, a flexible database-driven website for conceptual questions in the core chemical engineering sciences. Features of the AIChE Concept Warehouse include: a. Making concept questions available in different formats to facilitate widespread use. b. Allowing integration of questions within a course and from different courses so students can link concepts to one
notation G (F, E (D, C, (B, A))) is a commonfeature when it involves the difference of the outcomes of two second-order relational processes.A bat and prey example in Doppler shift learning would be represented as beat frequency(original frequency of bat, shifted frequency received by bat (echo-reflection, shifted frequencyreceived by prey (original frequency of moving bat, moving prey))). An engineeringthermodynamics example in the understanding of Steam Tables would be represented as averageinternal energy increase (higher pressure, average internal energy (temperature, phase description(pressure, mixture quality))). On the other hand, a collision example represented as stop distance(surface friction, wreckage speed ( momentum conservation