Conference Session

NSF Grantees Poster Session

Collection

2011 ASEE Annual Conference & Exposition

Authors

Patrick A. Tebbe, Minnesota State University, Mankato; Nicholas Saucedo, Minnesota State University, Mankato; Jeffrey Richard Pribyl, Minnesota State University, Mankato; Stewart L. Ross, Minnesota State University, Mankato

Tagged Topics

NSF Grantees

AC 2011-1445: ENGAGED IN THERMODYNAMICS ADDRESSING THESTUDENT TO LEARNING MATERIAL INTERFACEPatrick A. Tebbe, Minnesota State University, Mankato Patrick A. Tebbe is an Associate Professor and Graduate Coordinator for mechanical engineering at Min- nesota State University, Mankato. He has degrees in both mechanical and nuclear engineering from the University of Missouri - Columbia. He is a member of ASME, ASEE, and currently serves as a Student Branch Advisor for ASHRAE.Nicholas Saucedo, Minnesota State University MankatoJeffrey Richard Pribyl, Minnesota State University, MankatoStewart L Ross, Minnesota State University, Mankato Stewart Ross, Ph.D. is the founding Director of the Center for Excellence in Teaching and

Conference Session

NSF Grantees Poster Session

Collection

2011 ASEE Annual Conference & Exposition

Authors

Matthew W. Roberts, University of Wisconsin, Platteville; Philip J. Parker, University of Wisconsin, Platteville; Michael K. Thompson, University of Wisconsin, Platteville; Barb A. Barnet, Univeristy of Wisconsin - Platteville

Tagged Topics

NSF Grantees

AC 2011-746: DEVELOPMENT OF AN INTRODUCTION TO INFRAS-TRUCTURE COURSEMatthew W Roberts, University of Wisconsin, Platteville MATTHEW ROBERTS is an Associate Professor in the Department of Civil and Environmental Engi- neering. Dr. Roberts earned his B.S. in Civil Engineering from Brigham Young University in 1993 then spent four years in the U.S. Air Force as a civil engineering officer. He received his Ph.D. from Texas A&M University in 2002 and has been teaching structural engineering topics at the University of Wiscon- sinPlatteville since then.Philip J. Parker, University of Wisconsin, PlattevilleMichael K Thompson, University of Wisconsin, Platteville M. Keith Thompson teaches Structural Mechanics and

Conference Session

TAC/ABET Related Outcome Based Assessment Methods and Models

Collection

2011 ASEE Annual Conference & Exposition

Authors

Richard Cliver, Rochester Institute of Technology (CAST); William M. Leonard, Rochester Institute of Technology; Elizabeth Dell, Rochester Institute of Technology; Robert A. Merrill, Rochester Institute of Technology

Tagged Divisions

Engineering Technology

Excellence in Teaching and Campus Leadership” and the first in his college to receive the ”Excellence in Adjunct Teaching Award” in 1998. My scholarly activity is centered on sharing the knowledge I gain in industry, sharing my course development and successful teaching methods. I am also a Senior Electrical Engineer at Eastman Kodak. I create new printed circuit board designs, direct technicians and find elec- trical solutions for Kodak products like: Kodak Approval XP Digital Laser Proofer and the Kodak LED Printer. Design experience gained at Kodak is directly applied to my teaching at RIT.William M. Leonard, Rochester Institute of Technology (CAST/MET) Bill Leonard is the program chair has been on faculty in the

Conference Session

Trends in Mechanical Engineering II

Collection

2011 ASEE Annual Conference & Exposition

Authors

Allan T. Kirkpatrick, Colorado State University; Scott Danielson, Arizona State University, Polytechnic campus; Robert O. Warrington, Michigan Technological University; Richard N. Smith, Rensselaer Polytechnic Institute; Karen A. Thole, Pennsylvania State University, University Park; A. Kulacki, University of Minnesota, Twin Cities; William J. Wepfer, Georgia Institute of Technology; Thomas Perry, P.E., American Society of Mechanical Engineers

Tagged Divisions

Mechanical Engineering

excellence in mechanical engineering technology education, serving as a member of the Vi- sion 2030 Task Force, serving as chair elect of the Committee on Engineering Technology Accreditation, serving on the Board of Directors of the ASME Center for Education, and as a member of the Mechani- cal Engineering Technology Department Head Committee. He has been a program evaluator for both the Society of Manufacturing Engineers (SME) and ASME and currently serves on the Technology Accredita- tion Council (TAC) of ABET, representing ASME. He also serves on the SME’s Manufacturing Education and Research Community steering committee. Before joining ASU, he had been at North Dakota State University where he was a faculty member in

Conference Session

Fostering Student Learning

Collection

2011 ASEE Annual Conference & Exposition

Authors

Stephen Snyder, Taylor University; Rachel Tomasik; Bethany Smith, Taylor University

Tagged Divisions

Educational Research and Methods

statistically significant difference between them in intrinsicmotivation (p .05 3: EXPERIENCED1: EVENT GROUP 2: NOVICE GROUP GROUP 4: EXPERT GROUP 1. Intrinsic 1. Intrinsic 1. Intrinsic1. Intrinsic Motivation Motivation* Motivation*** Motivation*** a. a. a. a.Contextualization* Contextualization Contextualization** Contextualization b. Curiosity* b. Curiosity b. Curiosity*** b. Curiosity*** c. Challenge

Conference Session

NSF Grantees Poster Session

Collection

2011 ASEE Annual Conference & Exposition

Authors

Tom Weller, University of South Florida; Jeff Frolik, University of Vermont; Paul G. Flikkema, Northern Arizona University; Wayne A. Shiroma, University of Hawaii at Manoa; Carol Haden, Magnolia Consulting, LLC; Rhonda R. Franklin, Univeristy of Minnesota

Tagged Topics

NSF Grantees

AC 2011-361: THE PORTABILITY OF SYSTEMS-CENTRIC CONTENTTO EXISTING SUB-DISCIPLINE COURSESTom Weller, University of South Florida Thomas M. Weller received the B.S., M.S. and Ph.D. degrees in Electrical Engineering in 1988, 1991, and 1995, respectively, from the University of Michigan, Ann Arbor. From 1988-1990 he worked at Hughes Aircraft Company in El Segundo, CA. He joined the University of South Florida in 1995 where he is currently a professor in the Electrical Engineering Department and Associate Dean for Research in the College of Engineering. He co-founded Modelithics, Inc. in 2001. Dr. Weller was a recipient of the Out- standing Young Engineer Award from the IEEE Microwave Theory and Techniques Society in

Conference Session

Poster Sessions for Unit Operations Lab Bazaar and Tenure-Track Faculty

Collection

2011 ASEE Annual Conference & Exposition

Authors

Donald P. Visco, Tennessee Technological University; Jason M. Keith, Michigan Technological University; Jeffrey A. Nason, Oregon State University; Roger C. Lo, Department of Chemical Engineering, California State University, Long Beach; James P. Abulencia, Manhattan College; Sergio Mendez, California State University, Long Beach

Tagged Divisions

Chemical Engineering

AC 2011-1921: POSTER SESSION FOR TENURE TRACK FACULTYDonald P. Visco, Tennessee Technological UniversityJason M. Keith, Michigan Technological University Jason Keith is an Associate Professor of Chemical Engineering at Michigan Technological University.Dr. Jeffrey A Nason, Oregon State UniversityRoger C. Lo, Department of Chemical Engineering, California State University, Long Beach Roger C. Lo is an Assistant Professor of Chemical Engineering at California State University, Long Beach. He received his PhD from Texas A&M University in May 2008. Roger teaches undergraduate and grad- uate required courses (fluids, math, and transport phenomena) and also numerical analysis using Excel and MATLAB for chemical

Conference Session

The CE Profession: Perspectives from the U.S. & Canada

Collection

2011 ASEE Annual Conference & Exposition

Authors

Tanya Kunberger, Florida Gulf Coast University; Steven J. Burian, University of Utah; Whitney A. Lutey, Montana State University; Audra N. Morse, Texas Tech University; Robert O'Neill, Florida Gulf Coast University; Kristen L. Sanford P.E., Lafayette College; Andrea L. Welker, Villanova University

Tagged Divisions

Civil Engineering

AC 2011-619: TWENTY-FIRST CENTURY CIVIL ENGINEERING: ANOVERVIEW OF WHO, WHAT, AND WHERETanya Kunberger, Florida Gulf Coast University Dr. TANYA KUNBERGER is an Assistant Professor in the Department of Environmental and Civil Engineering in the U.A. Whitaker School of Engineering at Florida Gulf Coast University. Dr. Kunberger received her B.C.E. and certificate in Geochemistry from the Georgia Institute of Technology and her M.S. and Ph.D. in Civil Engineering with a minor in Soil Science from North Carolina State University. Her areas of specialization are geotechnical and geo-environmental engineering. Educational areas of interest are self-efficacy and persistence in engineering and development of an interest in

Conference Session

Capstone Design I

Collection

2011 ASEE Annual Conference & Exposition

Authors

Peter L Schmidt, University of North Carolina, Charlotte; Daniel Hoch, University of North Carolina, Charlotte; Nabila A. Bousaba, University of North Carolina, Charlotte; William F. Heybruck, University of North Carolina, Charlotte; Deborah L Sharer, University of North Carolina, Charlotte; Valentina Cecchi, University of North Carolina at Charlotte; Gary Teng, University of North Carolina at Charlotte; Elizabeth Sharer, Francis Marion University

Tagged Divisions

Design in Engineering Education

AC 2011-1535: AN OPTIMIZATION ROUTINE FOR ASSIGNING STU-DENTS TO CAPSTONE PROJECT GROUPSPeter L Schmidt, University of North Carolina, Charlotte Peter L. Schmidt received his bachelor’s degree in mechanical engineering from the University of Louisville, a master’s degree in mechanical engineering from the Rose-Hulman Institute of Technology and his doc- torate degree in mechanical engineering from Vanderbilt University. He is currently an assistant professor at the University of North Carolina at Charlotte. He has served as a research associate and as an instructor at Vanderbilt University. He has also worked at the Naval Surface Warfare Center in Crane, Indiana; at Precision Rubber, now part of Parker Hannifin in

Conference Session

New Trends in ECE Education

Collection

2011 ASEE Annual Conference & Exposition

Authors

Christopher Van Arsdale, Michigan Technological University; Leonard J. Bohmann, Michigan Technological University

Tagged Divisions

Electrical and Computer

Page 22.1688.6 Electrical Aptitude Test1.Which of these pairs of magnets will stick together in the positions they are in?(A) Drawing A(B) Drawing B(C) Both Drawings2.Which battery has the higher energy capacity?(A) Battery A(B) Battery B(C) There's no difference Page 22.1688.7 13.Will this bulb light up?(A) Yes(B) No(C) Can't Tell4.Which light bulb gets hotter?(A) A(B) B(C) Can't Tell Page 22.1688.8 25.Which bulb will light up?(A) Drawing A(B) Drawing B(C) Both6. The force that causes electrons to flow through

Conference Session

Computers in Education Poster Session

Collection

2011 ASEE Annual Conference & Exposition

Authors

Oscar Antonio Perez, University of Texas, El Paso; Virgilio Gonzalez, University of Texas, El Paso; Michael Thomas Pitcher, University of Texas, El Paso; Peter Golding, University of Texas, El Paso

Tagged Divisions

Computers in Education

Page 22.1699.3weeks of the course and then compare their performance. This was done to generate a baseline ofcomprehension difference between the classes. At this point for simplicity the class where theiPad was not used will be referred, as “class A”, and the class where the iPad was used will bereferred as “class B”. The same test was given to both classes. The average of class A in examone was 77.9 in a scale of 0 to 100. The average of class B in exam one was 74.8. Class Aoutperforms class B by 3.1 points on average.Experiment 1 second six weeks For the second six weeks all of the students in class B received one of the iPads with theabove specifications while class A continued on in the course without iPad. Class B was nowenabled to

Collection

2011 Spring ASEE Middle Atlantic Section Conference

Authors

Amal Kabalan

it as a possible goal to achieve.The classroom experiment suggested in this paper will introduce the students to the concept ofusing solar energy to power cars. It will walk them through the experiment by first showing themthat a small solar panel can make a toy car run.Procedure Copyright ASEE Middle Atlantic Regional Conference, April 29-30, 2011, Farmingdale State College, SUNYBefore starting the experiment the student will be a given sheet that has the following questions:Part I:What do cars nowadays need to move?A. Gas B. Wind C. SunWhat do cars emit when they move?A. Water B. Sun C. Carbon dioxideWhat could the effect of carbon

Conference Session

Integration of the Humanities and Social Sciences into Civil Engineering

Collection

2011 ASEE Annual Conference & Exposition

Authors

Sean St.Clair, Oregon Institute of Technology; Charles E. Riley, Oregon Institute of Technology; David K. Thaemert P.E., Oregon Institute of Technology; Roger Lindgren, P.E., Oregon Institute of Technology

Tagged Divisions

Civil Engineering

your individual input, your group’s overall presentation, Page 22.1632.11 and your scores on the quizzes.Figure A-1. Professional Skills Assignment Name: _________________________________ 1. The “big three” items that must be managed in any project (as identified by the interviewees) are: 1. ________________________ 2. ________________________ 3. ________________________ 2. Management concepts can be applied to both projects and personnel. Which of the following is shared between these two applications? (a). Equipment tracking (b). Communication (c). Life cycle costing (d). Materials specification 3

Conference Session

Teaching Mechanics

Collection

2011 ASEE Annual Conference & Exposition

Authors

Ing-Chang Jong, University of Arkansas; William T. Springer, University of Arkansas

Tagged Divisions

Mechanics

formulas with the method of superposition regarding (a) theirmethodology and pedagogy, (b) the availability of a one-page excerpt from the method of modelformulas, (c) the availability of a one-page collection of deflection formulas of selected beamsfor the method of superposition, and (d ) assessment of their effectiveness in solving problems ofreactions and deflections of beams in several identical given problems.I. IntroductionBeams are longitudinal members subjected to transverse loads. Students usually first learn thedesign of beams for strength. Then they learn the determination of deflections of beams under avariety of loads. Methods used in determining statically indeterminate reactions and deflectionsof elastic beams include: 2 - 1 3

Conference Session

BME Courses and Learning Activities

Collection

2011 ASEE Annual Conference & Exposition

Authors

Jennifer Vernengo, Rowan University

Tagged Divisions

Biomedical

  report results  interpret data  experimental design and analysis of  and  (ABET‐B)  data.  discussion;   An ability to design a  Pre and post‐ system, component,  Students will contrast roles of  test questions  or process to meet  component materials in composites;  3,6,7,8,9;  desired needs within  consider material constraints imposed  Laboratory  realistic constraints.  by the designer  report  (ABET‐C)  discussion  Cultivate student  The open‐ended nature of the

Conference Session

Sustainability and Humanitarian Engineering

Collection

2011 ASEE Annual Conference & Exposition

Authors

Seamus F. Freyne, Mississippi State University; James P Abulencia, Manhattan College; Powell Draper, Manhattan College

Tagged Divisions

Engineering Ethics

students’ viewpoints would be likely to change withadditional study, and how relevant and important students believe these ethical issues are to themand society. With each question, students were instructed to mark one of five possible choices.The same five questions were attached to each of the ten ethical issues, as follows:• Where do you stand on this ethical issue? The possible responses were “agree strongly with viewpoint A,” “lean toward viewpoint A,” “neutral,” “lean toward viewpoint B,” and “agree strongly with viewpoint B.”• How would you describe your interest in this ethical issue? The possible responses were “high,” “significant,” “moderate,” “little,” and “none.”• Do you think your viewpoint would change with thorough study of this

Conference Session

NSF Grantees Poster Session

Collection

2011 ASEE Annual Conference & Exposition

Authors

Margret Hjalmarson, George Mason University; Jill K. Nelson, George Mason University

Tagged Topics

NSF Grantees

collected for the study included students’ concept inventory (SSCI)scores, course grades, end-of-semester survey responses, and interview transcripts. Data werecollected during two semester offerings of the course, though not all types of data were collectedin each semester. Thirty-five students participated in the study in semester A; students’ conceptinventory scores and course grades were collected, and semi-structured interviews wereconducted with a small number of the students. Nineteen students participated in the study insemester B; students’ concept inventory scores and course grades were collected, as well as end-of-semester survey responses.In both semesters, students completed the discrete-time Signals and Systems Concept Inventory(SSCI

Conference Session

DEED Poster Session

Collection

2011 ASEE Annual Conference & Exposition

Authors

Wael Mokhtar, Grand Valley State University

Tagged Divisions

Design in Engineering Education

mesh, their results show some progressfrom the first project to the second one.Table 2: Grading rubric Simulation step Grade CAD model A B C D F Physical model A B C D F Boundary Conditions A B C D F Mesh model A B C D F Surface mesh A B C D F Volume mesh A B C D F Solver setting A B C D F Post processing tool#1 A B

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

Capstone Design I

Collection

2011 ASEE Annual Conference & Exposition

Authors

Gregory K Watkins, California State University, Chico

Tagged Divisions

Design in Engineering Education

: • Frequency of meetings with student groups • Content of group meetings • Project management role • Overall responsibility for project success • Grading responsibilities • Review of student design logbooks • Approval of milestones • Attendance at presentations and other eventsThese discussions yielded two primary results, one expected and one that was not. The expectedresult was a clear definition of the role of the faculty mentor. The discussions resulted in adocument that clearly defines the responsibilities and expectations for faculty mentorship ofcapstone design projects. That document is made available to students and is also included inAppendix B. Full details of its implementation have

Conference Session

Design Education I

Collection

2011 ASEE Annual Conference & Exposition

Authors

Louis Reifschneider, Illinois State University; RJ Linton, Illinois State University

Tagged Divisions

Manufacturing

Page 22.311.5innovation. Again, this advantage does not come at no cost. The design time and fabricationrequirements for an injection mold are some of the highest in the manufacturing industry.However, if done well, injection molding results in lower piece part cost for products that aremade in enough volume to justify the initial investment.Injection Mold DesignInjection molding, unlike thermoforming, requires two mold halves to be made. The air spaceremaining between the mold halves when they close creates the molded part. A computer-aidedrendering of the lower mold half, the B plate, is shown in Figure 29. This plate forms the interiordetail of the cover while the mating plate, the A plate, defines the exterior of the cover; refer toFigure

Conference Session

Research Related to Learning and Teaching Engineering in Elementary Classrooms

Collection

2011 ASEE Annual Conference & Exposition

Authors

John C. Bedward, North Carolina State University; Eric N. Wiebe, North Carolina State University

Tagged Divisions

K-12 & Pre-College Engineering

B. Finally, evidence-based practices in elementary scienceeducation are still emerging and evolving, hence more studies are needed that connect thepsychology of the child with epistemic practices of science and engineering.MethodsThis is an ethnographic study. In this instance utilizing multiple sources of data, studentinterviews, their notebook pages and peer interactions to better understand how they make senseof phenomena within the STEM classroom setting35. The interest is in facilitating classroompractices towards more authentic ways of learning. Providing a learning environment wherestudents leverage their individual science and pre-engineering knowledge towards a morecollective understanding. In many ways viewing the students as

Conference Session

Information and Network Security

Collection

2011 ASEE Annual Conference & Exposition

Authors

Maurice F. Aburdene, Bucknell University; Kundan Nepal, Bucknell University

Tagged Divisions

Computing & Information Technology

laboratoryprojects.Each laboratory project was discussed first in class and students were assigned homeworkbased on the project, followed by 3 hour lab to improve their understanding of the majorconcepts. Students wrote project reports (learning by writing).The relevant learning goals for the course addressed by these two projects are to develop theability to: a. identify and use signal models, b. develop models of engineering systems, physical systems, and social systems, c. analyze continuous-time system models by applying Fourier methods, and frequency response methods, d. develop computer models using available software packages for analysis and design, and e. communicate laboratory and project

Collection

2011 Fall ASEE Middle Atlantic Section Conference

Authors

JIM SHIH-JIUN CHEN; ALANI INTINTOLO

Visual DemonstrationMany students struggled with the selection and construction of FBDs and theidentification of known and unknown forces and moments. After showing numerousexamples, the authors found that most students had a much better understanding whenstudents are engaged in hands-on and/or sight experience when the instructor explainsthe force and moment principles. As shown in Fig, 1(a), this demonstration wasborrowed from an exhibit in Philadelphia’s Franklin Institute. The instructor asked everystudent in the class to stand up and balance his/her body with one foot.After a while, every student found a balance by shifting his/her weight to above the foot.They also found that the one-foot stand was unstable as shown in Fig, 1(b), when

Conference Session

Fostering Student Learning

Collection

2011 ASEE Annual Conference & Exposition

Authors

Gerald Sullivan, Virginia Military Institute; James C. Squire, Virginia Military Institute; George Mercer Brooke IV, Virginia Military Institute,Department of Physics and Astronomy

Tagged Divisions

Educational Research and Methods

I). Three types of questions were included on the quiz, in order toassess students Objective and Subjective comprehension of the material, as well as their self- Page 22.1453.4assessed enjoyment/interest in the material:Objective Comprehension: The quiz included 7 questions aimed at assessing how wellstudents learned concepts from the lecture concerning spring mass damper systems. Forexample:“7. A new car design tends to ride too “rough”, meaning on bad roads the passenger cab vibrates too much. What parts might need to be redesigned to fix this? a) The dampers and the springs. They are interrelated. b) Only the dampers

Conference Session

Student Learning and Assessment II

Collection

2011 ASEE Annual Conference & Exposition

Authors

Randall D. Manteufel, University of Texas, San Antonio; Amir Karimi, University of Texas, San Antonio

Tagged Divisions

Mechanical Engineering

two.Figure 4 shows that engineering faculty also have significant grading differences. The grades forthree faculty for EGR 2103: Statics illustrate an almost unbelievable variation in grades issued ina key foundational class. One faculty issued 61% A grades in a class of about 50 students, whilethe other two faculty issued 33% and 27% A&B grades combined. The number of A for oneinstructor is twice the combined A and B of the other two instructors. Page 22.1198.6Figure 4. Three instructors who teach the first engineering mechanics (statics) course.from myedu.com assessed 1/10/2011.It is believed that some faculty issued high grades to mask their

Conference Session

Computer Science Applications

Collection

2011 ASEE Annual Conference & Exposition

Authors

Ryan J. Meuth, University of Advancing Technology

Tagged Divisions

Computers in Education

. wiring.org. [Online] [Cited: January 17, 2011.] http://www.wiring.org.co.3. Banzi, M. Arduino - Home Page. [Online] [Cited: January 17, 2011.] http://arduino.cc/en/.4. Wettach, R. Fritzing. [Online] [Cited: January 17, 2011.] http://fritzing.org.5. First Principles of Instruction. Merrill, M.D. 3, s.l. : Educational Technology Research andDevelopment, 2002, Vol. 50. 43-60.6. A wakeup call to Science Faculty. Alberts, B. 5, s.l. : Cell, 2005, Vol. 123. 739-741.7. Tufte, Edward R. The cognitive style of PowerPoint. Chesire, Conn. : Graphics Press, 2003.8. Using Learning Style Instruments to Enhanse Student Learning. Hawk, Thomas F. and Shah, Amit J.s.l. : Descision Sciences Journal of Innovative Education, 2007.9. Attempted Validations of the Scores

Conference Session

Methods, Techniques, and New Programs in Graduate Education

Collection

2011 ASEE Annual Conference & Exposition

Authors

Justin P. Micomonaco, Michigan State University

Tagged Divisions

Graduate Studies

. This paper describes the work ofthe Center for the Integration of Research, Teaching and Learning (CIRTL) including: (a) itsphilosophical pillars; (b) the types of opportunities offered to graduate students; and (c) the typesof interactions within the network to promote learning and development inter-institutionally. Inaddition, the paper draws upon the data collected over the last seven years as part of an on-goingcase study of the multi-institutional network to discuss (a) evidence of success, (b) obstacles tosucceeding in implementing these programs, and (c) future challenges for CIRTL as anexpanding inter-institutional network.Background Several prominent national and governmental organizations have called for increasedattention to

Collection

2011 Fall ASEE Middle Atlantic Section Conference

Authors

Melissa P. Mackinnon; Kyle D. Gilroy; Aarthi Sundar; Robert Hughes; Svetlana Neretina

a shape change fromspherical to near-hemispherical. Large area scans revealed vast fields of these nanoparticles witha few scattered regions showing agglomerated clusters. Gold Nanoparticles on the Surface Before Annealing (a) (b) b 0 1 µm Gold Nanoparticles on the Surface After Annealing and Sonication (c) (d) 0 1 µm 0 1 µm Fig. 2 AFM images showing a comparison of gold nanoparticles on the surface of sapphire (a) before and (c) after annealing. Also presented are the corresponding

Collection

2011 Fall ASEE Middle Atlantic Section Conference

Authors

L. Ralph; Singli Garcia-Otero; E. Sheybani

cut-off point of about 2 GHz.These particular filters allow all signals below 2 GHz to pass through. Any signal above 2 GHz isblocked from the filter. A high-pass filter's task is just the opposite of a low-pass filter: to offer easypassage of a high-frequency signal and difficult passage to a low-frequency signal as shown in Figure1(b). Most of the filters used had a cut off frequency of about 40 GHz. This means the filter pass signalsonly if the frequency is 40 GHz or above. If any frequencies below 40 GHz entered the filter, the signalwould be blocked. There are applications where a particular band, or spread, or range of frequencies needto be filtered from a wider range of mixed signals. Filter circuits can be designed to accomplish this