unit connected to that particular relay port. The automatedchicken farm unit has a solar unit that extracts and converts energy from the sun toelectrical energy. This energy is used to charge a battery which is used to power thechicken house. The solar unit has a single axis solar tracker that enables the solar panel tomove from east to west in the direction of the sun and controls the alignment of the solarpanel with the sun to obtain maximum energy transfer. The chicken house can also bepowered from an electrical outlet8. A simple block diagram of the chicken farm unit and apicture of the final prototype are shown in Figure 1 and Figure 2, respectively. TheAutomated Egg Conveyor and Separator is an automated system that is able to
objectives of this work are to determine if the true elastic response of the multilayers can beextracted from instrumented indentation, and to examine how the indentation-derived moduluscompares with the actual anisotropic elastic properties of the composite. Numerical ModelOverall Elastic PropertiesA schematic of the multilayer structure, composed of a large number of alternating metal andceramic layers, is shown in Fig. 1. The individual layers are isotropic, each with an in-planedimension (along the 1- and 3-directions) much greater than the out-of-plane dimension (the 2-direction). All interfaces between adjacent layers are assumed to be perfectly bonded so thedisplacement field across the interface is
this behavior as the “Ultra Low cycle fatigue”. IntroductionMicro Electro Mechanical Systems (MEMS) and its offshoot Nano Electro Mechanical Systems(NEMS) have been very popular all over the world lately. At the heart of it, is the support from avery mature semiconductor technology. This bolstered interest and the presence of a well developedtechnology base has resulted in a very rapid growing commercial market for the MEMS and NEMSdevices. Haque et. al.1 lists some of these devices. Many of the commonly used MEMS/NEMSdevices have metallic thin films as mechanical structures. The elastic and plastic properties of thesethin films are differ significantly from those of the bulk material2,3,4. At these
this behavior as the “Ultra Low cycle fatigue”. IntroductionMicro Electro Mechanical Systems (MEMS) and its offshoot Nano Electro Mechanical Systems(NEMS) have been very popular all over the world lately. At the heart of it, is the support from avery mature semiconductor technology. This bolstered interest and the presence of a well developedtechnology base has resulted in a very rapid growing commercial market for the MEMS and NEMSdevices. Haque et. al.1 lists some of these devices. Many of the commonly used MEMS/NEMSdevices have metallic thin films as mechanical structures. The elastic and plastic properties of thesethin films are differ significantly from those of the bulk material2,3,4. At these
proper frequency and amplitude could be applied to the failed device and repair itwithout additional equipment. Proof of ConceptInitial proof-of-concept experiments were performed to show the viability of the method to repairstiction failed devices. Specifically, experiments were performed on idealized cantilevered beamstructures as shown in Figure 1.Figure 1. Schematic of a stiction failed micro-cantilever with an actuation pad near its base. An AC signal appliedbetween the base and pad causes structural vibrations that induce repair of stiction failed MEMS (see Figure 2 below). Proceedings of the 2008 ASEE Gulf-Southwest Annual Conference
Session 12-25 Novel Graphitic Structures by Design Mark Atwater, Zayd Leseman, Jonathon Phillips, and Marwan Al-Haik Department of Mechanical Engineering The University of New Mexico Albuquerque, NM 87131 AbstractGraphitic Structures by Design (GSD) is a novel technology for growing graphite in precisepatterns from the nano to the macroscale, rapidly (>1 layer/sec), at low temperatures (ca. 500oC),and in a single step using ordinary laboratory equipment. The GSD process consists of
the network is queried for information. The amount of packets needed tozone the entire network is not extremely efficient due to the following factors:1. During the discovery phase, the entire network gets flooded with discovery packets. Theamount of network congestion caused by such heavy number of data packets cripples the networkfor the amount of time this entire process takes.2. The discovery packet at each phase needs to be examined by the individual node whichamounts to computational energy which is utilized by that node irrespective of it’s involvement inthe point to point communication between the requesting node and the queried zone. Proceedings of the 2008 ASEE Gulf-Southwest Annual Conference
Session 13-1 Targeted Recruitment of Disadvantaged Students:The Multiplier Effect of Senior Electrical Engineering Design Demonstrations August Allo, Carol Costello Department of Electrical and Computer Engineering University of Texas at San Antonio AbstractAlthough the importance of Electrical and Computer Engineering is recognized as one of thecritical areas for producing technically competitive graduates, recruitment of students to this areapresents a challenge. In part, this is due to the fact that Electrical and
Session 14-1 Pre-College Preparation in Math, Science, and Engineering for K-12 Children Debra S. Johns Pre-College Math & Science Academy Engineering Student Services University of New Mexico AbstractThe Pre-College Math and Science Academy at the University of New Mexico providesencouragement to underrepresented students in grades K-12, teaching them to be proficient inmathematics and science, preparing these students to enroll in and complete college with a science
improve thisintervention initiative, with the revised program design containing academic- and preparatory-skillscomponents available during the summer and in advance of normal fall enrollment. IntroductionThe importance of engineering and computer science innovations and creativity to Americanprosperity and quality of life is widely acknowledged.1 Many studies have documented the needand demand for U.S. engineers, especially in the Sunbelt states.2, 3 University and college academicengineering programs play a paramount role in supplying the nation’s technical workforce throughattracting, retaining, educating, and graduating a diverse and capable population of practicingengineers.1Although collegiate
Session 15-1 How the Capstone Class Students Perceive Their Knowledge Base?Farrokh Attarzadeh, Enrique Barbieri, Miguel A. Ramos, Mayuri Mahajan, Vishal Naik, Aditya Gupta Engineering Technology Department University of Houston AbstractThe Capstone Course is a 5-credit Research and Development course covering all aspectsof project development and implementation, entrepreneurship, innovation, creativity,team-work, and communication. The philosophy behind the course is to provide trainingand real-world, small-scale project experience
of the class.Students perceived that there was a disparity between the design process and design theory. Finally,because the end point of the project was predefined, students found it difficult to articulate theproblem statement. Subsequent semesters were required to select an existing biomedical device orproduct, disassemble that device, and propose and implement a design improvement based on theRedesign principles articulated by Otto and Wood.1 References1. Product Evolution: A Reverse Engineering and Redesign Methodology, Kevin N. Otto, Kristin L. Wood, SpringerLondon, Volume 10, Number 4 / December, 1998. Proceedings of the 2008 ASEE Gulf-Southwest Annual Conference
execution of the prototypesare some of the factors which play a role in successful completion of the course.The nature of the capstone class calls for a multi-faceted assessment process. Thecapstone class emphasizes a course structure that gives students an opportunity todemonstrate growth in different ways rather than focusing solely on objective examsalthough these are still utilized. A variety of assessment activities provide multiplesources of data that are used to build a thorough picture of student learning and academicperformance in this environment. This strategy is consistent with best practices that Proceedings of the 2008 ASEE Gulf-Southwest Annual Conference 1 The University of New Mexico
this paper. Suggestions on how the performance criteria can be used in aprogram are described in detail to allow selective adoption of the performance criteria fordifferent courses.The methodology for defining and using the performance criteria described in this paper enablesfaculty to (1) fully understand the outcomes, (2) understand a range of performance criteria thatneed to be measured for each outcome, and (3) remove any ambiguity in the interpretation of theoutcomes. In addition, it makes it possible to identify the critical skill-sets to measure for eachoutcome and makes assessment meaningful for engineering technology programs.IntroductionIn the advent of EC 2000, Engineering, Engineering Technology and Computer Scienceprograms have
Session 16-1 Raising Community Energy Awareness: Building an Energy Display at the Mayborn Museum Kenneth W. Van Treuren Department of Mechanical Engineering Baylor University Ian A. Gravagne Department of Electrical and Computer Engineering Baylor University AbstractEnergy is becoming an increasingly important topic in our lives. Watching the price of energyskyrocket, in particular
for two-thirds of a public institution’s funding to come from the state.Today things are dramatically different. A recent survey found that state funding can varyfrom eight percent to up to 57 percent of a state four-year institution of highereducation’s budget. On the low end were national research institutions and on the highend were predominantly teaching intuitions. [1] The rational from the respective statelegislatures appeared to be that research institutions could get by for less due to the grantmoney they took in. Their student tuition also tends to be higher. However, funding fromthe state and student tuition is not enough. Almost all public institutions now mustengage in fundraising to be able to balance their budgets. The question
Session 17-1 NanoUndergraduate Education Techniques at the University of New Mexico Marwan Al-Haik, Zayd Leseman, Claudia Luhrs Mechanical Engineering Department University of New Mexico Albuquerque, NM 87131 Mahmoud Reda Taha Civil Engineering Department University of New Mexico Albuquerque, NM 87131 AbstractThis paper describes an approach that
device families and the software used forimplementation. Programmable Logic versus MicrocontrollersThe following will compare and contrast the differences between an application implementedusing VHDL and a CPLD, or C programming and a microcontroller2, 3. A simple Booleanexpression will be used for this purpose: f = a • b + c.Implementation using VHDLSimple Boolean expressions may be programmed using a schematic interface in which a logiccircuit is drawn. For the purpose of contrasting a VHDL implementation to C, the code will beused. Figure 1 shows the architecture block of a VHDL program used to implement:f = a • b + c. architecture boolean of bool is begin
fall 2007, using the text “Solar Engineering of Thermal Processes,” authoredby two prominent researchers in the UW Solar Energy Laboratory, John Duffie and WilliamBeckman.Also in support of its adoption at Baylor were the many and significant improvements appearingin version 161. Among these, several stand out: 1. User interface. TRNSYS is a so-called procedural language. As such, most of its functionality comes from modular component models called “types,” and TRNSYS “code” is simply a syntax for telling the computational engine how the inputs and outputs of various types are interconnected. Nevertheless, things can get quite complicated, and the version 16 Simulation Studio is an improvement that allows
• Analyzing and evaluating arguments, interpretations or beliefs • Synthesizing subject-matter insights and knowledge The Capstone CourseThe course enables students to: (1) complete two projects based on their field of interest, (2)prepare an effective written technical report, (3) plan and produce presentation materials whichmost effectively communicate the intended message for their technical oral presentation, and (4)apply concepts and practices of their field of experience to develop and effectively present their Proceedings of the 2008 ASEE Gulf-Southwest Annual Conference The University of New Mexico – Albuquerque Copyright © 2008
CAD/CAE software package. Proceedings of the 2008 ASEE Gulf-Southwest Annual Conference The University of New Mexico – Albuquerque Copyright © 2008, American Society for Engineering EducationGAMBIT software is used to construct the structure (Figure 1) that can be imported into theFLUENT solver software that will allow us to analyze the fluid flow. Figure 1. Using GAMBIT software to build mesh FLUENT As an Educational Tool to CFD AnalysisComputational fluid dynamics grids the flow region and attempts to compute and predict flowproperties at each grid element. It gives an alternative to analyzing fluid flow properties