Conference Session

Contemporary Issues in Chemical Engineering Education

Collection

2010 Annual Conference & Exposition

Authors

Richard Zollars, Washington State University; Christopher Hundhausen, Washington State University; Pawan agrawal, Washington State University

Tagged Divisions

Chemical Engineering

ranking from – 11 to 11. For example a ranking of -11 on the active/reflective Page 15.564.2scale would indicated a strong preference for an active learning style while a ranking of11 would indicate a strong preference for a reflective learning style. Felder andSilverman have found the majority of learners in engineering are visual learners. Asshown in Figure 1, the students in our material and energy balance are no different,showing a strong preference for a visual learning style (average score = - 5 on the Felder-Silverman scale). Visual/Verbal 25 20 20 15 15 12

Conference Session

Design, Creativity and Critical Thinking in the Chemical Engineering Curriculum

Collection

2014 ASEE Annual Conference & Exposition

Authors

Christopher R. Anderson, Lafayette College

Tagged Divisions

Chemical Engineering

drug delivery strategiesCourse structureThe course divided into four areas that focus on mass transport in biological tissues and drugdelivery systems, drug binding and biological effects, the design and application of drug deliverysystems, and a collaborative research project focused experimental methods of testing drugdelivery systems. The course schedule is shown in Table 1.Table 1. Course Schedule for Drug Delivery Week Topics 1 Introduction to Drug Delivery 2 Pharmacokinetics and Compartment Modeling 3 LAB: Compartment Modeling with MATLAB 4 Diffusion in Rectangular, Cylindrical and Spherical Coordinates 5 Diffusion Coefficient, Fluorescence Recovery after Photobleaching

Conference Session

Virtual and Online Learning Tools in Chemical Engineering Education

Collection

2014 ASEE Annual Conference & Exposition

Authors

Alec Steven Bowen, Oregon State University; Daniel Robert Reid, Oregon State University; Milo Koretsky, Oregon State University

Tagged Divisions

Chemical Engineering

Laboratories allow students to see how molecular interaction gives rise to thephenomena described by mathematical equations. The IVLs can currently be accessed online viathe AIChE Concept Warehouse (cw.edudiv.org). This paper focuses on how students use twoIVLs, one based around the thermodynamics threshold concept of pressure-volume work and theother on that of reversibility.1. Pv Work. Work is an abstract concept, and it is often difficult for students to understand how the act of doing work on a system adds energy. Intuitively, students may understand that compressing a gas causes it to undergo an increase in temperature, or a ‘heating up’. The purpose of the work simulation is to give students a physical model explaining why doing work on

Conference Session

Virtual and Online Learning Tools in Chemical Engineering Education

Collection

2014 ASEE Annual Conference & Exposition

Authors

Jason M. Keith, Mississippi State University; Liz Rayfield, Dave C. Swalm School of Chemical Engineering, Mississippi State University; Niraj Kashinath Palsule, Mississippi State University

Tagged Divisions

Chemical Engineering

energy11(http://www.che.msstate.edu/pdfs/energy/index.html) modules online.Multidisciplinary Nature of Solar EnergyConsider a photovoltaic installation on an individual’s roof-top. Apart from the higher efficiencyof the panels, the individual will also look for a cheaper material for panels. In order to regain apart of his investment, he might think of selling the excess electricity produced. Thus like anyother method for power generation, utilization of Solar Energy is not solely based on science orengineering. Factors like finances and policy making also play an important role in itsdevelopment. This multidisciplinary nature of Solar Energy is illustrated in Figure 1. As a result,it would not be sufficient to provide students with only the

Conference Session

Curriculum Development and Assessment in Chemical Engineering

Collection

2014 ASEE Annual Conference & Exposition

Authors

Debra M. Gilbuena, Oregon State University; Christina Smith, Oregon State University; Bill Jay Brooks, Oregon State University; Milo Koretsky, Oregon State University

Tagged Divisions

Chemical Engineering

, different students and a different culture.E.M. Rogers put forth a theory, Diffusion of Innovations, that offers one framework with whichto examine this process. In this context, Rogers describes diffusion as “the process in which aninnovation is communicated through certain channels over time among the members of a socialsystem.”1 Page 24.556.2Conceptual learning is critical to developing problem solving skills in chemical engineering.Many engineering educators and industry partners emphasize the need for students to apply theirknowledge to new and challenging problems.2 In order to do so, students must learn withunderstanding.3 A lack of

Conference Session

Design, Creativity and Critical Thinking in the Chemical Engineering Curriculum

Collection

2014 ASEE Annual Conference & Exposition

Authors

Kerry Michael Rogy; Cheryl A. Bodnar, University of Pittsburgh; Renee M. Clark, University of Pittsburgh

Tagged Divisions

Chemical Engineering

of Senior Chemical Engineering Students as a Result of Exposure to the Epistemic Game “Nephrotex”AbstractInnovation and entrepreneurship are critical to the development and growth of society.Entrepreneurs use innovation to develop novel technologies, while innovation is often supportedby the capital raised by entrepreneurs.1 Companies today are acutely aware of the benefitsafforded by employees with entrepreneurial mindsets and have started screening for thesecharacteristics as well as other 21st Century Skills, including problem solving, critical thinking,and communication skills. In a recent article in the TechCrunch, a leading technology mediaproperty stated, “In our research, we found that some

Conference Session

Improving Introductory Experiences in Chemical Engineering

Collection

2014 ASEE Annual Conference & Exposition

Authors

Gladis Chávez-Torrejón, Universidad de las Americas Puebla; Silvia Husted, Universidad de las Americas Puebla; Nelly Ramirez-Corona, Universidad de las Americas Puebla; Aurelio Lopez-Malo, Universidad de las Americas Puebla; Enrique Palou, Universidad de las Americas Puebla

Tagged Divisions

Chemical Engineering

, breadth, logicality, and fairness) to unsatisfactory (value 1, unskilled and insufficient,marked by imprecision, lack of clarity, superficiality, illogicality, inaccuracy, and unfairness).Mean values from rubric assessment of two major projects were 2.78 ± 0.58 for purposes(meaning that in average, students demonstrated an understanding of the assignment’s purpose),2.77 ± 0.77 for key questions, problems, or issues (students defined the issue; identified the coreissues, but may not fully explored their depth and breadth), 2.85 ± 0.47 for information (studentsgathered sufficient, credible, and relevant information, included some information from opposingviews, and distinguish between information and inferences drawn from it), 2.67 ± 0.74

Conference Session

Improving Laboratory Education in Chemical Engineering

Collection

2014 ASEE Annual Conference & Exposition

Authors

Mary M. Staehle, Rowan University; Tom Merrill, Rowan University; Stephanie Farrell, Rowan University

Tagged Divisions

Chemical Engineering

increased surface area. In this work, we have created an artificialmicrocapillary network by encapsulating cotton candy in an elastomer. We are currentlyadapting this as a laboratory exercise where students will investigate conductive andconvective heat transfer in this networked path. The objective of this laboratory activitywill be to reinforce the importance of heat transfer surface area. In this paper, we presentthe laboratory activity and our plans for adapting the activity in engineering courses atRowan University.1. IntroductionHuman physiology is complex, yet when distilled down to its component parts, the bodycan be studied as an interconnected set of unit operations with a common overallobjective: the maintenance of steady state, known as

Conference Session

Improving Laboratory Education in Chemical Engineering

Collection

2014 ASEE Annual Conference & Exposition

Authors

Joshua A. Levinson, Lafayette College; Eric L. Maase, University of Massachusetts-Lowell; Glen Thomas Tennyson

Tagged Divisions

Chemical Engineering

control the leveland/or temperature of water fed into a CSTR using feedback-based control. The concept wasbased on a prototype system previously constructed from less sophisticated components andsoftware control, with the new system being fabricated using components already on-hand orordered per specification. The assembled MIMO system is shown in Figure 1, with theaccompanying process and instrumentation diagram appearing in Figure 2.Briefly, the apparatus incorporates a two-liter Chemglass jacketed CSTR, equipped with avariable speed impeller. Water was supplied from the city water line and was regulated to lowerpressures using separate in-line regulators and hand-valves for the hot and cold water feed lines

Conference Session

Improving Laboratory Education in Chemical Engineering

Collection

2014 ASEE Annual Conference & Exposition

Authors

Jacqueline Gartner Ph.D., Washington State University; David Finkel; Bernard J. Van Wie, Washington State University; Olusola Adesope, Washington State University-Pullman

Tagged Divisions

Chemical Engineering

from the course. Questions in the interviewsare those developed as part of a previous study investigating persistence of conceptualdifficulties for students who have already had a fluid mechanics course. When we compare thetwo sets of interviews we anticipate results will show greater metacognitive skills and retentionin understanding of fluid mechanics concepts for students that had the DLM treatment.IntroductionHands-on active learning has taken several forms over the past decades, with the spectrum ofhands-on active learning ranging from tasks as simple as students briefly discussing their ideason a given topic to courses structured around case studies and group work where students areconstantly engaging and learning from each other.1

Conference Session

Design, Creativity and Critical Thinking in the Chemical Engineering Curriculum

Collection

2014 ASEE Annual Conference & Exposition

Authors

Bill B. Elmore, Mississippi State University

Tagged Divisions

Chemical Engineering

practice (e.g. level control, temperature control,reactor design and process economics).Our first year chemical engineering course sequence herein reported engages a large freshmancohort (around 100 students, at present) in team-based, hands-on activities. Evidence suggestsstudents readily “latching onto” key concepts and various aspects of chemical engineeringthrough this “multi-modal” learning approach. Objectives of this method of program integrationinclude: 1) strengthened retention of freshmen in our chemical engineering program, 2) better“visualization” of chemical engineering concepts among chemical engineering freshmen and 3) astronger sense of the application of STEM topics to the professional practice of

Conference Session

Virtual and Online Learning Tools in Chemical Engineering Education

Collection

2014 ASEE Annual Conference & Exposition

Authors

Garret Nicodemus, University of Colorado, Boulder; John L. Falconer, University of Colorado, Boulder; Will Medlin, University of Colorado, Boulder; Katherine Page McDanel, University of Colorado, Boulder, Department of Chemical & Biological Engineering; Jeffrey Steven Knutsen, University of Colorado, Boulder, Department of Mechanical Engineering,

Tagged Divisions

Chemical Engineering

explains why the answer iscorrect. Similarly, interactive Mathematica simulations allow users to manually changevariables and almost instantly see the effects on the system behavior. This encourages studentinteraction with part of an assignment, and can also be used in class where students are asked topredict system behavior. More than 400 chemical engineering simulations, prepared by anumber of authors, are available on the Wolfram Demonstrations Project website. We haveprepared about 25 of these simulations and are starting to prepare screencast that explain theiruse.Screencasts A number of studies have shown screencasts to be effective learning materials that are betterthan lectures. A meta-analysis by the Department of Education [1] found

Conference Session

Virtual and Online Learning Tools in Chemical Engineering Education

Collection

2014 ASEE Annual Conference & Exposition

Authors

Susan M. Montgomery, University of Michigan

Tagged Divisions

Chemical Engineering

encyclopedia, available at encyclopedia.che.engin.umich.edu ,which is now easily available to faculty and students alike. In addition, engineering technicians Page 24.732.2have reported to the author using the encyclopedia to determine the best type of equipment to usefor their purposes.Description of encyclopediaThe main page of the encyclopedia, shown in Figure 1, displays the nine categories ofequipment. The table in the Appendix lists the over one hundred types of equipment withinthese categories. Figure 1. Encyclopedia of Chemical Engineering Equipment home page

Conference Session

Improving Introductory Experiences in Chemical Engineering

Collection

2014 ASEE Annual Conference & Exposition

Authors

Laura-Ann Shaa Ling Chin, Villanova University; Justinus Agus Budi Satrio, Villanova University; Kenneth A. Kroos, Villanova University

Tagged Divisions

Chemical Engineering

. Figure 1 shows the timeline of a typical freshman engineering program at VillanovaUniversity’s College of Engineering. In the first semester, this freshman engineering coursebegins with a seven-week core lesson plan incorporating engineering fundamentals alongsidedynamic hands-on group micro-projects that bring classroom lessons to life. Following the corelesson plan, students are presented with the opportunity to select two of six interdisciplinary, 7-week hands-on mini projects. These mini projects that span the second half of the first semesterand the first half of the second semester have been designed to expose students to a minimum oftwo different engineering disciplines. By mid second semester, students select their preferredengineering

Conference Session

New Classrooms, New Challenges I: Novel Approaches to Courses

Collection

2012 ASEE Annual Conference & Exposition

Authors

Allen Hersel, Trine University

Tagged Divisions

Chemical Engineering

iPad. So DYKNOW will not besupported by the university in the future. Many faculty members who have used DYKNOW are not asenthusiastic about this change, as class management software is currently missing for the Apple iPad.What was clear from the use of DYKNOW is that if technology is going to be used in the classroom,the ability of the instructor to control the content delivered is paramount for success in the classroom.For Universities that continue to have students purchase Tablet PC’s or laptop computers usingDYKNOW as a class management software, is a viable option and has proven to aid student learning. 1. Richard M. Felder, Rebecca Brent “Death by PowerPoint”, Chemical Engineering Education, 39 (1), 28-29 (2005) 2. http

Conference Session

Perspectives and Approaches to Teaching Simulation and Design-Based Courses

Collection

2013 ASEE Annual Conference & Exposition

Authors

Nelly Ramirez-Corona, Universidad de las Americas Puebla; Ramirez Apud Lopez Zaira, Universidad de las Americas Puebla; Aurelio Lopez-Malo, Universidad de las Americas Puebla; Enrique Palou, Universidad de las Americas Puebla

Tagged Divisions

Chemical Engineering

schemadevelopment. Having constructed a robust schema for different kinds of problems, learners arebetter able to transfer their problem-solving skills. Learning to solve problems requires practicein solving problems, not learning about problem solving2. PSLEs assume that learners mustengage with problems and attempt to construct schemas of problems, learn about theircomplexity, and mentally wrestle with alternative solutions2, 9. Hence, we built PSLEs to engageand support students in learning how to solve problems by practicing solving problems3.PSLEs were developed by following the design activities proposed by Jonassen2: 1) First weinteracted with the teacher of the studied course to identify and articulate problems relevant tothe discipline; 2) We

Conference Session

Using Communication and Writing Techniques to Improve Student Learning

Collection

2013 ASEE Annual Conference & Exposition

Authors

Shannon Ciston, University of California, Berkeley; Sean Poust, University of California-Berkeley

Tagged Divisions

Chemical Engineering

rating communication among the top five most importantengineering skills, in a recent study reported in Enabling Engineering Student Success.1 Page 23.234.2Communication skills for engineers have been a focus of many prior papers and reports thatfocus on communication in the engineering workplace,2 development of written communicationskills,3 oral communication skills, 4 and international and global communications.5 The ABETEngineering Accreditation Commission has established communication skills as a StudentOutcome for all accredited engineering programs in Outcome g: an ability to communicateeffectively. 6This need to educate engineering

Conference Session

"How Do We Compare?" - Students, Case Studies, and Learning Approaches

Collection

2013 ASEE Annual Conference & Exposition

Authors

Joshua A Enszer, University of Maryland Baltimore County; Mariajose Castellanos, University of Maryland, Baltimore County

Tagged Divisions

Chemical Engineering

scores factored in.Results and DiscussionFor the following comparisons, the entire population of the Spring 2012 course (n=39) is used. Aone-sample t-test is conducted on the population correlation coefficient to determine if there is astatistically significant correlation between the adjustment factors computed by both CATMEand the point division method.Point Division vs. CATME (including self-evaluation)Figure 1 shows the results of student ratings including their own self-assessment scores in thecomputation. There are fourteen students who received ratings of 1.05 from the CATME Page 23.32.4computation and eight students with ratings of 1.0

Conference Session

Chemical Engineering Poster Session & Unit Operations Lab Bazaar

Collection

2013 ASEE Annual Conference & Exposition

Authors

William M. Clark, Worcester Polytechnic Institute; Nicholas Janeiro Medeiros, Worcester Polytechnic Institute; Donal James Boyd; Jared Snell, WPI; Lucas J Brutvan, Worcester Polytechnic Institute

Tagged Divisions

Chemical Engineering

to its highviscosity. Transesterification converts the high viscosity oil into 3 biodiesel molecules withviscosity and other properties similar to those of petroleum diesel fuel1. The overall reaction forproduction of biodiesel from vegetable oil is Triglycerides + 3 Methanol Glycerol + 3 Methyl Esters (1)Vegetable oil is primarily composed of triglycerides with long chain aliphatic groups of the formCH3(CH2)7CH=CH(CH2)7, but different types of oils have different amounts of saturated andunsaturated fats of various types2. The methyl esters, also called fatty acid methyl esters(FAMEs), are the biodiesel product we seek. The reaction can be either base-catalyzed or acid-catalyzed.The apparent simplicity of

Conference Session

Focus on Entry Experiences in Chemical Engineering

Collection

2011 ASEE Annual Conference & Exposition

Authors

Margot A. Vigeant, Bucknell University; Lori Smolleck, Bucknell University

Tagged Divisions

Chemical Engineering

their parents and teachers, while achieving its educational objectivesfor the first year engineering students as well as the education students.IntroductionENGR 100: Exploring EngineeringENGR 100: Exploring Engineering is a first-semester course taken by all engineeringstudents as well as interested students from the college of Arts and Sciences, with atypical enrollment of 200 students. The course follows a modular structure, wherein allstudents attend overview lectures on engineering, teamwork, ethics, and the disciplines,but break into much smaller sections for an in-depth exploration of a given discipline(called a “seminar”) [1, 2]. Each student takes three of nine possible seminars, sostudents arrive at the end of the semester through very

Conference Session

Impact of the Gulf Coast Oil Spill on Chemical Engineering Education & Misc.

Collection

2011 ASEE Annual Conference & Exposition

Authors

Tamara Floyd Smith, Tuskegee University; Nadar Vahdat, Tuskegee University

Tagged Divisions

Chemical Engineering

statistical evidence, both activities increased student awareness of thesafety and environmental issues associated with the spill. IntroductionThe 2010 Gulf Coast oil spill was one of the worst environmental disasters in Americanhistory. The incident began with an offshore drilling rig, the Deepwater Horizon.According to Transocean's website[1], the Deepwater Horizon was built in 2001 in SouthKorea and was designed to operate in water up to 8,000 feet deep, drill 5 ½ miles down,and accommodate a crew of 130. It floated on pontoons and was moored to the sea floorby several large anchors. The rig, which was under contract to the oil giant BP, was doingexploratory drilling but was not in production. At the time of

Conference Session

Impact of the Gulf Coast Oil Spill on Chemical Engineering Education & Misc.

Collection

2011 ASEE Annual Conference & Exposition

Authors

Michael A. Smith, Villanova University; Noelle K. Comolli, Villanova University

Tagged Divisions

Chemical Engineering

Subject of Process Modeling and Design: A Compelling Education Module It is widely accepted that educational outcomes are more successful when students have akeen interest in the subject, and this typically happens when the subject is something near anddear to them. It is also widely acknowledged that most college student show a keen interest inbeer. In our experience with students in engineering, this often translates into an interest in thebrewing process and at times has culminated in students engaging in home brewing. It is naturalthen to use this interest to engage students in educational exercises around one or more aspects ofbrewing technology.[1, 2] In the Department of Chemical Engineering at Villanova University,we have

Conference Session

Focus on Capstone Experiences in the Chemical Engineering Curriculum

Collection

2011 ASEE Annual Conference & Exposition

Authors

David L. Silverstein, University of Kentucky; Margot A. Vigeant, Bucknell University

Tagged Divisions

Chemical Engineering

Page 22.788.2available for the 1991 survey.The complete survey in print form is provided as Appendix A.Course TimingThe most common timings for the course within a program’s curriculum were at the end of thejunior year or at the start of the senior year, with a slight edge to the junior year start. Thedistribution of the timing course offerings is given in Figure 1 below. Table 1offers a historicalcomparison of offerings by term, which indicates there has been a shift toward offering the firstcourse in KRD to the junior year. In 1974, 13% of reporting programs taught the course in thejunior year, and in 2010 that percentage appears to be almost 50%. 50% % of responding departments

Conference Session

SPECIAL SESSION: Educational Methods and Tools to Encourage Conceptual Learning I

Collection

2011 ASEE Annual Conference & Exposition

Authors

Matthew W. Liberatore, Colorado School of Mines

Tagged Divisions

Chemical Engineering, Educational Research and Methods

. Page 22.828.1 c American Society for Engineering Education, 2011 Improved student achievement in Material and Energy Balances using personalized online homeworkAbstractPersonalized, online homework was used to supplement textbook homework, quizzes, and examsfor one section of a course in material and energy balances. The use of online homework duringthe Spring 2010 semester is summarized here and detailed by Liberatore in 1, and additionalresults from Spring 2011 will be included in the presentation. The objective of this study was totest the hypothesis that students using personalized, online homework earned better grades in thecourse. The online homework system asks the same questions of

Conference Session

SPECIAL SESSION: Interdisciplinary Course Design Opportunities for Chemical Engineers

Collection

2011 ASEE Annual Conference & Exposition

Authors

Joseph J. Biernacki, Tennessee Technological University; Christopher D. Wilson, Tennessee Technological University

Tagged Divisions

Chemical Engineering

mechanics of quasi-brittle composites such as portland cement concrete. While vastly different, each of theseexamples is extremely complex and requires insights from many disciplines to understand, even,in some cases, to have a superficial understanding. Therefore, interdisciplinarity and complexityare intimately intertwined 1. So, does this imply that 21st Century medical doctors, scientists,business professionals and engineers must be “jacks of all trades?” The answer to this is “no,”but rather, they must be trained to recognize interdisciplinary problems, to approach themappropriately and to work in an interdisciplinary environment.The maturation of well developed disciplinary studies such as economics, sociology, biology

Conference Session

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

Collection

2011 ASEE Annual Conference & Exposition

Authors

Deniz Rende, Rensselaer Polytechnic Institute; Nihat Baysal, Yeditepe University; Sevinc Rende, Isik University

Tagged Divisions

Chemical Engineering

are reported to be valuable in their daily life, emphasizing life-longlearning.1. IntroductionChemical engineering curriculum ensures students focus on learning the technical details of theprofession. However, problems in industry always involve much more than just finding technicalsolutions.1 Professional careers require skills such as proposing ideas, developing practicalsolutions, working in teams, meeting deadlines, establishing communication between technicalsupport and suppliers, overseeing financial issues and finally reporting and presentation skills.Very few chemical engineering programs incorporate project management courses that meetrequirements of professional life. Therefore, alterations and additions into the existingcurriculum

Conference Session

SPECIAL SESSION: Educational Methods and Tools to Encourage Conceptual Learning I

Collection

2011 ASEE Annual Conference & Exposition

Authors

Dan Cernusca, Missouri University of Science & Technology; Daniel Forciniti, Missouri University of Science & Technology

Tagged Divisions

Chemical Engineering, Educational Research and Methods

towardHQKDQFHVWXGHQWV¶OHDUQLQJH[SHULHQFHs more effective. The high complexity of the topiccombined with the ZLGHUDQJHRILVVXHVUHODWHGWRVWXGHQWV¶UHDGLQHVVWRWDFNOHWKHFRXUVHchallenges pointed toward the Cognitive Apprenticeship3,6 as grounding model. Research showsthat instructional strategies grounded in the cognitive apprenticeship model can be effectivelearning tools in various domains such as performance system analysis5, clinical training16 orleadership development1.The redesign of learning materials and strategies was informed by the four stages of thecognitive apprenticeship: 1) modeling that enable students to emulate expert in action; 2) scaffolding (task complexity reduction) as cognitive support for students in emulating expert performance

Conference Session

Adaptive and Supportive Learning Environments

Collection

2012 ASEE Annual Conference & Exposition

Authors

W. Vincent Wilding, Brigham Young University; Thomas Allen Knotts IV, Brigham Young University; William G. Pitt, Brigham Young University; Morris D. Argyle, Brigham Young University

Tagged Divisions

Chemical Engineering, Minorities in Engineering

leadership for the purpose of developing upper-divisionactivities, particularly in terms of curricular expectations. It has also been challenging to assessvalue added by these activities, since students come into our program with a wide variety ofleadership experience.To arrive at a working definition of leadership that would best serve our purposes, we made it afocus for our annual meeting with our Industrial Advisory Board. We asked this group ofprofessional and industrial leaders to list leadership attributes and expectations that are importantin their organizations. These were compiled and further refined to produce a list of attributes thatconstitutes our functional definition of leadership. This list is shown in Table 1. This list ofleadership

Conference Session

Best. Class. Ever.

Collection

2012 ASEE Annual Conference & Exposition

Authors

Victor M. Ugaz, Texas A&M University; Aashish Priye, Texas A&M University ; Yassin A. Hassan, Texas A&M University

Tagged Divisions

Chemical Engineering

materials (e.g.,polypropylene) used to construct the reaction tubes and plates, resulting in the need to hold thetemperature constant at each stage of the reaction for a significant period of time so that theentire reagent volume can equilibrate. As a consequence, it is not uncommon for PCR reactionsto require 1–2 hours to complete, imposing severe limitations on achievable throughput.Harnessing Natural ConvectionThermal convection has emerged as a promising alternative thermocycling approach that has thepotential to overcome these limitations2-9. Convective flows are an everyday occurrence in adiverse array of settings ranging from the Earth’satmosphere, oceans, and interior, to decorative andcolorful lava lamps. Fluid motion is initiated in

Conference Session

Adaptive and Supportive Learning Environments

Collection

2012 ASEE Annual Conference & Exposition

Authors

Eric C. Huang, Manhattan College

Tagged Divisions

Chemical Engineering, Minorities in Engineering

1b. For the sophomore class as a whole entity (i.e., mentees plus control group A),pairwise t-tests showed the responses between assessments were different (p < 10-3), indicating Page 25.499.3that self-perceived interaction levels between sophomores and upperclassmen increased foreveryone. However, comparing mentees with control indicated that the net changes were notstatistically different between the groups. Table 1a. Self-perceived interaction levels with juniors on a 1-5 scale, with a “5” indicating high interaction. First Second