Conference Session

Understanding Student Behavior and Experiences

Collection

2020 ASEE Virtual Annual Conference Content Access

Authors

Jeannine E. Turner, Florida State University; Min Tang; Shayne Kelly McConomy, Florida A&M University/Florida State University; Mostafa Papi; Jerris Hooker, Florida A&M University/Florida State University

Tagged Divisions

Educational Research and Methods

) to explore the best pedagogical practices to improve the efficiency integrating classroom project-based learning and students’ real-world problem-solving practice. I have MS degree from Florida State University in Curriculum and Instruction and BA degree from China Nanchang University in English. I speak English, Chinese, and some Japanese. I am a proactive person. If you are interested in my research topic, please feel free to contact me via email: mt14n@my.fsu.eduMr. Shayne Kelly McConomy, Florida A&M University/Florida State University Shayne K. McConomy is the Capstone Design Coordinator in the Department of Mechanical Engineer- ing at FAMU-FSU College of Engineering; He holds a PhD in Automotive

Conference Session

Laboratory Learning in Biomedical Engineering (Works in Progress) - June 24th

Collection

2020 ASEE Virtual Annual Conference Content Access

Authors

Sarah Corinne Rowlinson Furtney, University of Florida

Tagged Divisions

Biomedical Engineering

withbioinstrumentation, these courses constitute the dedicated teaching spaces (Figure 2) andfundamental skills that students use later in their course sequence in junior design and seniordesign. The University of Florida undergraduate biomedical engineering program is capped atone-hundred and twenty students for each graduating cohort, resulting in two sections of ~thirty-two students enrolled in the cellular engineering laboratory course each semester. A BFigure 2: The Cellular Engineering Laboratory has 8 Biological Safety Cabinets, with 4 shown in (A) andthe remaining mirrored behind, and a discussion space (B) where all students can see projected images.For the majority of students enrolled in Cellular Engineering Laboratory

Conference Session

Pedagogy and Teaching Preparation in Graduate Programs

Collection

2020 ASEE Virtual Annual Conference Content Access

Authors

Locke Davenport Huyer, University of Toronto; Neal I. Callaghan, University of Toronto; Dawn M. Kilkenny, University of Toronto

Tagged Divisions

Graduate Studies

of future STEM generations.IntroductionThe changing landscape of academia presents challenge in ensuring graduate trainees areproficient in the development of professional skills outside of the research environment [1]. Thisincludes capacity for knowledge translation of research outcomes to a non-expert audience,curriculum development, and effective project management [2]. Consequently, in preparingfuture faculty to assume academic roles and responsibilities successfully, post-secondaryinstitutions have shifted greater focus to providing teaching development programs for traineeprofessional development [3]. This is particularly important given the competitive nature ofsecuring an academic position. With increasing diversity of academic

Conference Session

Graduate Education Expectations, Preparation, and Pathways

Collection

2020 ASEE Virtual Annual Conference Content Access

Authors

Maya Denton, University of Texas at Austin; Nathan Hyungsok Choe, Ohio State University; Maura J. Borrego, University of Texas at Austin; David B. Knight, Virginia Polytechnic Institute and State University

Tagged Topics

Diversity

Tagged Divisions

Educational Research and Methods

5th year negatively predicts completion. Since all students in this program are required to TA,those who TA in early years may have less research responsibility and more time to devote toassociated TA duties without sacrificing any other tasks. However, as doctoral students gainresearch responsibility and feel pressure to make progress on dissertation work, having a TAcould increase their workload unaligned with their projects and inhibit progress, delayinggraduation.In contrast, having an RA assignment or fellowship may allow doctoral students to fully focus onresearch, as shown when RA and fellowship are positive predictors of persistence andcompletion. Students funded on both RAs and fellowships develop important researchcompetencies and

Conference Session

NSF Grantees: Identity

Collection

2020 ASEE Virtual Annual Conference Content Access

Authors

Debra A. Major, Old Dominion University; Seterra D. Burleson, Old Dominion University; Xiaoxiao Hu, West Virginia University; Kristi J. Shryock, Texas A&M University

Tagged Topics

NSF Grantees Poster Session

Development Lab with Dr. Debra A. Major where she has contributed to several grant-funded projects concerning the underrepresentation of women and minorities in STEM from their undergradu- ate careers into the workforce. Her primary research interests include the work-life interface, workplace gender and cultural issues, and leader support.Xiaoxiao Hu, West Virginia University Xiaoxiao Hu is an Associate Professor in the Management Department at West Virginia University. She received her PhD in Industrial/Organizational psychology from George Mason University. Her primary research areas are on affective experience and relational dynamics in the workplace. She also does re- search on psychometric and measurement issues as

Conference Session

ECCD - Technical Session 2 - Solar Energy

Collection

2020 ASEE Virtual Annual Conference Content Access

Authors

Saeed Sean Monemi, California State Polytechnic University Pomona

Tagged Divisions

Energy Conversion and Conservation

. c American Society for Engineering Education, 2020 Prototype Automated Solar Tracking with Power Generation System Abstract — The purpose of this project was to design and build a Solar Tracking System froman electrical and mechanical perspective. The tracking system is equipped with automatedbattery charging circuit and switching capabilities for multiple batteries. The system can run afully autonomous mode using photoresistor to track the sun ensuring optimal coverage. Thepopular ESP8266 Wi-Fi Module is interfaced with an Arduino Mega using its communicationsprotocols for wireless control and monitoring of the system.I. Introduction In our everyday lives we constantly hear the chatter government and activists have inwhich

Conference Session

Sociotechnical Integration

Collection

2020 ASEE Virtual Annual Conference Content Access

Authors

Jacquelene Erickson, Colorado School of Mines; Stephanie Claussen, Colorado School of Mines; Jon A. Leydens, Colorado School of Mines; Kathryn Johnson, Colorado School of Mines; Janet Y. Tsai, University of Colorado, Boulder

Tagged Topics

Diversity

Tagged Divisions

Liberal Education/Engineering & Society

. Lucena, focused on rendering visible the social justice dimensions inherent in three components of the engineering curriculum—in engineering sciences, engineering design, and humanities and social science courses; that work resulted in Engineering Justice: Transforming Engineering Education and Practice (Wiley-IEEE Press, 2018). His current research grant project explores how to foster and assess sociotechnical thinking in engineering science and design courses.Dr. Kathryn Johnson, Colorado School of Mines Kathryn Johnson is an Associate Professor at the Colorado School of Mines in the Department of Elec- trical Engineering and Computer Science and is Jointly Appointed at the National Renewable Energy Laboratory’s

Conference Session

NSF Grantees: RED 1

Collection

2020 ASEE Virtual Annual Conference Content Access

Authors

Milo Koretsky, Oregon State University; Susan Bobbitt Nolen, University of Washington; Michelle Kay Bothwell, Oregon State University; Susannah C. Davis, Oregon State University; Christine Kelly, Oregon State University

Tagged Topics

NSF Grantees Poster Session

students from being able to integrate and extend the knowledge developed in specific courses in the core curriculum to the more complex, authentic problems and projects they face as professionals. Dr. Koretsky is one of the founding members of the Center for Lifelong STEM Education Research at OSU.Dr. Susan Bobbitt Nolen, University of Washington Susan Bobbitt Nolen is Professor Emerita of Learning Sciences & Human Development at the University of Washington. She earned her PhD in Educational Psychology at Pudue University. Her current research interests focus on student engagement in engineering practices and social interaction during learning activ- ity, and their relationship to engineering identity and opportunity

Collection

2017 Gulf Southwest Section Conference

Authors

Sreedevi Ande P.E.

engagement and inspiration. In order to maximize the outreach to as many high schoolfemale students as possible regarding the GEMS camp and inspiring them towards choosing aSTEM career, high school students in San Antonio were invited to the GEMS camp to participatein hands-on engineering activities. Students gained valuable experience through challengingactivities that emphasized Civil and Electrical Engineering. The students presented theirexperiences, and the knowledge gained throughout the projects, by creating and delivering agroup poster presentation at the end. The outcomes of the camp included student’s increasedability to conceptualize engineering problems and an increased engagement in engineering byincorporating visualization tools in the

Collection

2017 Gulf Southwest Section Conference

Authors

John Hansen; Chengzhu Yu

The Heroes Behind the Heroes of Apollo-11: Role of STEM John H. L. Hansen, Lakshmish Kaushik, Chengzhu Yu, Abhijeet Sangwan Center for Robust Speech Systems, Eric Jonsson School of Engineering, The University of Texas at Dallas, Richardson, TX 75080, USA {john.hansen, abhijeet.sangwan, lakshmish.kaushik, chengzhu.yu}@utdallas.eduAbstractDuring Apollo-11 project, countless scientists, engineers, technicians worked behind the scenes to ensurethat both the solutions and the execution of the detailed flight plan was a success. It is our goal to create aninteractive application that allows users to explore NASA’s archive of Apollo missions. The application

Conference Session

Computing and Information Technology Division Technical Session 9

Collection

2020 ASEE Virtual Annual Conference Content Access

Authors

Wendi M. Kappers, Embry-Riddle Aeronautical University, Daytona Beach; Martha Nanette Harrell, Arkansas Tech University

Tagged Divisions

Computing and Information Technology

Security Officer for the Arkansas Office of Health Information Technology (OHIT). She worked with the team at OHIT to implement the State Health Alliance for Records Exchange (SHARE). Dr. Harrell has over 25 years’ experience with the technology field, serving as an educator, implementer, and manager. Dr. Harrell is a certified Project Manager and a Certified Public Manager. She has worked with the Arkansas State Cyber Security Office to ensure successful implementation of many State security projects, one of which received the George C. Askew Outstanding Project Award for Certified Public Managers. c American Society for Engineering Education, 2020 From degree to Chief Information

Collection

2020 ASEE North Midwest Section Annual Conference

Authors

Filipe Santos Araujo, Pittsburg State University; Erik A. Mayer, Pittsburg State University

Paper ID #32154Developing a substation design curriculum for electronics engineeringtechnologyMr. Filipe Santos Araujo, Pittsburg State University Filipe has received his bachelor’s degree in electrical engineering at the Universidade Salvador, Brazil, with an emphasis in power systems. He is currently pursuing his master‘s degree at Pittsburg State Uni- versity in Kansas. He has worked in different areas: 3G and 4G telecommunication expansion projects in Brazil, automation of a truck assembly line in Indiana, and substation design in Kansas City. He is currently a graduate teaching assistant at Pittsburg State University

Conference Session

ENT Division Technical Session: Competitions, Challenges, and Teams

Collection

2020 ASEE Virtual Annual Conference Content Access

Authors

Yaxin Huang, Shanghai Jiao Tong University; Jiabin Zhu, Shanghai Jiao Tong University; Zhinan Zhang, Shanghai Jiao Tong University

Tagged Divisions

Entrepreneurship & Engineering Innovation

education possesses the characteristic of"technology-led, project-based team learning, close ties with the industry”. To name a few,Stanford University launches Stanford Technology Ventures Program (STVP), providingcustomized entrepreneurship courses for engineering students according to their educationlevel, which are given by both school and industry mentor [2]. Technical University ofMunich, a paragon of European entrepreneurial universities, sets up UnternehmerTUM andStart TUM to provide students with comprehensive guidance on the whole process of theirstarting a business, such as providing hands-on entrepreneurship training, basic equipment forproducing product prototypes in their start-up period [3]. Numerous School ofEntrepreneurship and

Conference Session

Multidisciplinary Curriculum and Course Development

Collection

2020 ASEE Virtual Annual Conference Content Access

Authors

Adeel Khalid, Kennesaw State University; Tris Utschig, Kennesaw State University

Tagged Divisions

Multidisciplinary Engineering

Institutional Innovation Staring from the Grassroots LevelAbstractIn this project, a town hall meeting was conducted with faculty and staff from all departments ina college of engineering. Teams of 10-12 people were asked to generate ideas for collaborativeexchange among faculty, staff, and students to better support student success, retention andprogression. The purpose of the town hall format was to intentionally initiate change within thecollege from the grass root levels instead of mandates coming top down. Dozens of ideas weregenerated, qualitatively sorted into common themes, and ordered by frequency. Each theme wasthen discussed in a meeting with administration to assign relative weights for anticipated costand perceived impact

Conference Session

Pre-college Engineering Education Division Technical Session 6

Collection

2020 ASEE Virtual Annual Conference Content Access

Authors

Murad Musa Mahmoud, Wartburg College; Trinity Borland, Wartburg College; Ripken Gehrig Holst, Wartburg College; Kurt Henry Becker, Utah State University

Tagged Topics

Diversity

Tagged Divisions

Pre-College Engineering Education

Research (CEER) which examines innovative and effective engineering education practices as well as classroom technologies that advance learning and teaching in engineering. He is also working on National Science Foundation (NSF) funded projects exploring engineering design thinking. His areas of research include engineering design thinking, adult learning cognition, engineering education professional development and technical training. He has extensive international experience working on technical training and engineering educaton projects funded by the Asian Development Bank, World Bank, and U.S. Department of Labor, USAID. Countries where he has worked include Armenia, Bangladesh, Bulgaria, China, Macedonia, Poland

Conference Session

WIP It! Faculty Development Style!

Collection

2020 ASEE Virtual Annual Conference Content Access

Authors

Lisa Bosman, Purdue University-Main Campus, West Lafayette (College of Engineering); Erin J. McCave, University of Houston; Molly H Goldstein, University of Illinois at Urbana - Champaign; Kelli L. Chelberg, College of Menominee Nation

Tagged Topics

Diversity

Tagged Divisions

Faculty Development Division

confident that many aspects can be generalized into the general academic settingregardless of research disciplinary focus area.Tuckman’s 5 Stages of Team Development [1], Figure 1, is very much applicable for teams thatare required to work together versus teams that choose to work together. As educators, wecommonly see these stages play out in group design projects, especially when it comes to the“storming” stage when students start complaining about their peers and show frustration towardsthe inability to be productive as a group. Tuckman’s model offers a good foundation, yet theauthors set out to propose a modified framework that describes the stages that occur when people“choose” to work together, versus Tuckman’s model which describes the

Conference Session

Women in Engineering Division Technical Session 10

Collection

2020 ASEE Virtual Annual Conference Content Access

Authors

M. Teresa Cardador, University of Illinois at Urbana-Champaign; Karin Jensen, University of Illinois at Urbana - Champaign; Kelly J Cross, University of Nevada, Reno; Grisel Lopez-Alvarez, University of Illinois at Urbana-Champaign

Tagged Topics

Diversity

Tagged Divisions

Women in Engineering

with engineering department faculty, staff, advisors, andfemale students. By understanding how and why elective tracks become gendered withinengineering majors, we hope to identify effective strategies for improving the preparation ofwomen to pursue technical roles and career paths in their chosen field of study, with the broadgoal of improving the workplace retention of female engineers.As this project is ongoing, we plan to present preliminary results based on wave one (1)interviews with 30 female engineering students in their sophomore year (the year when electivetrack selections are made).Project Background and Theoretical FrameworkExisting research shows that men and women in gender-typed occupations – such as engineering– often

Conference Session

Approaches to Assessment and Student Reflection

Collection

2020 ASEE Virtual Annual Conference Content Access

Authors

Susan Bobbitt Nolen, University of Washington; Milo Koretsky, Oregon State University

Tagged Divisions

Educational Research and Methods, Ocean and Marine

Koretsky is a Professor of Chemical Engineering at Oregon State University. He received his B.S. and M.S. degrees from UC San Diego and his Ph.D. from UC Berkeley, all in Chemical Engineering. He currently has research activity in areas related engineering education and is interested in integrating technology into effective educational practices and in promoting the use of higher-level cognitive and social skills in engineering problem solving. His research interests particularly focus on what prevents students from being able to integrate and extend the knowledge developed in specific courses in the core curriculum to the more complex, authentic problems and projects they face as professionals. Dr. Koretsky is one of

Conference Session

Sense of Belonging and Diversity in Engineering Programs, Courses, and Teams

Collection

2020 ASEE Virtual Annual Conference Content Access

Authors

Siqing Wei, Purdue University, West Lafayette; Wei Zakharov, Purdue University, West Lafayette; Matthew W. Ohland, Purdue University, West Lafayette; Lan Jin, Purdue University, West Lafayette; Daniel M. Ferguson, Purdue University, West Lafayette

Tagged Topics

Diversity

Tagged Divisions

Educational Research and Methods

international engineering teamwork behaviors, the integration, and implementation of team-based assignments and projects into STEM course designs and using mixed-method, especially natural language processing to student written research data, such as peer-to-peer comments. Siqing also works as the technical support manager at CATME research group.Dr. Wei Zakharov, Purdue University at West Lafayette Wei Zakharov is an Assistant Professor of Library Science and Engineering Information Specialist in the Purdue University Libraries. Dr.Zakharov is the faculty liaison to Aeronautical and Astronautical Engi- neering, Aviation and Transportation Technology, Electrical and Computer Engineering and Engineering Education. Her

Collection

2020 First-Year Engineering Experience

Authors

Ryan Baldwin, NJIT; Jaskirat Sodhi, New Jersey Institute of Technology; Ashish D Borgaonkar, New Jersey Institute of Technology

multiple awards for excellence in instruction. He also has worked on several research projects, programs, and initiatives to help students bridge the gap between high school and college as well as preparing students for the rigors of mathematics. His research interests include engineering education, integration of novel technologies into engineering classroom, excellence in instruction, water, and wastewater treatment, civil engineering infrastructure, and transportation engi- neering. American c Society for Engineering Education, 2020 Pilot Program: Infusing Rubin Education into First-Year SeminarIntroductionThe purpose of this GIFTS and paper is to

Collection

2020 Gulf Southwest Section Conference

Authors

Elsa Castillo; Joel Robinson; Kristine Denman; Anyssa Choy; Tariq Khraishi

/computer science students was conducted at the University of New Mexico. The scholarshipprogram involved elements such as faculty mentoring, career development activities and financial support foreach student scholar. In this paper, the program details are furnished and data on the positive impacts of suchactivities on student academic success is presented. IntroductionThe S-STEM (Scholarships in Science, Technology, Engineering, and Mathematics (S-STEM) project (NSFAward ID 1458854) at the University of New Mexico (UNM) officially started awarding scholarships in the fall2015. Funded through a grant from the National Science Foundation, the S-STEM project at UNM focuses onretaining and graduating

Collection

2020 Gulf Southwest Section Conference

Authors

Veronica Mitchell; Benjamin Matheson; Tye Martin; Phuong Nguyen; Vanessa Svihla; Eva Chi; Heather Canavan

interdisciplinary teams were formed, each with a distinct designchallenge.InstructionwascarriedoutthroughacombinationofonlinelearningfollowingtheIDEOdesignthinkingcurriculum,aswellastraditionallecture,andinteractivediscussions.Studentparticipationandlearningwas recorded in a central physical or electronic notebook, and assessed through a combination ofquizzes,andprojectupdates,andothermeans.Settingupmilestonesthatthestudentshadtomeetalongthewaywereusedtoencouragestudentgroupstocommunicatewithoneanotherandensurethattheyweremakingprogress.ThedesignsweretestedbymembersofthepublicataChallengeevent,aswellasbytheneed-knoweroftheirteam.Finally,studentswererequiredtocreateavideopresentationoftheir final design as a way to both conclude the class project and

Collection

2020 Gulf Southwest Section Conference

Authors

Jesus Ortega

of New Mexico, Albuquerque Copyright © 2020, American Society for Engineering Education 2 Gen3 CSP Program DiscussionIn order to investigate the integration challenges of a CSP-TES system with a sCO2 power cycle,the DOE has issued “The Generation 3 Concentrating Solar Power Systems (Gen3 CSP) fundingprogram will build on prior research for high-temperature concentrating solar thermal power(CSP) technologies. Projects will focus on de-risking CSP technologies by advancing high-temperature components and developing integrated assembly designs with thermal energy storagethat can reach high operating temperatures.4” The Gen 3 program is

Collection

2020 Gulf Southwest Section Conference

Authors

Micaela Olivas; Mostafa Hassanalian

, a conceptual drone that utilizes Titan’s methane oceans asa fuel supply for repeatable flight will be designed. The proposed methane fuel supply may beapplied to future drones and even in larger-scaled aircrafts performing research missions on Titan.Future work for this project includes further investigation of the liquid methane refueling system, theliquid methane/liquid oxygen propulsion system, control mechanisms, and structural analysis andmaterial integrity in the environments of Titan. A prototype of this exploration drone could bedeveloped in as soon as 2 years. References[1] Hassanalian, M., Rice, D. and Abdelkefi, A., “Evolution of space drones for planetary exploration: a review

Collection

2020 Gulf Southwest Section Conference

Authors

Jade Chapman; Gage Arter; Truc Le; Kevin Zhang; Ben Zoghi; Rainer Fink

automated waterproof system that measuresand detects traces of nitrite, nitrate, and ammonia using the API method in a mid-to-large sized watercontainer. This means that the system will automatically dose and mix the solutions followed bycalculating the concentration of the elements based on their colors. The device within the overallsystem will detect the concentration of these aquatic livestock byproducts and alert the user of actionsthat should be taken to balance the water chemistry of the breeding environment. The “wow factor”of the project will be the design of this device and layout of the overall automated system, as it willbe unique to any system out on the market.Sampling BreakdownThe system will monitor the aquatic tank by rotating the

Collection

2020 ASEE Virtual Annual Conference Content Access

Authors

Zahraa Stuart, Stony Brook University; Angela M Kelly, Stony Brook University; Monica Bugallo, Stony Brook University

Tagged Topics

Diversity

Tagged Divisions

Pre-College Engineering Education

interest andknowledge. Four different projects were designed: 1) a 3D-printed spirograph, 2) a night light, 3) anoptical intrusion detection with memory, and 4) a traffic light. Students who participated in the camp(N=56) built and optimized their own take-home electronic devices. Pre- and post-surveys were collectedto analyze the students’ engineering self-efficacy, knowledge, and engineering skills. Results suggestedthat students’ self-efficacy and beliefs in succeeding in engineering majors and careers increased aftertheir experiences in the camp; they also improved their engineering knowledge and skills (p

Collection

2020 Fall ASEE Mid-Atlantic Section Meeting

Authors

Patricia Muisener, Stevens Institute of Technology (School of Engineering and Science); Gail P Baxter, Stevens Institute of Technology; Guillermo D. Ibarrola Recalde, Stevens Institute of Technology (School of Engineering and Science)

subject matter expertise, adeep understanding of effective pedagogy and experience and/or interest in adopting evidence-based teaching practices. With support from the National Science Foundation, Stevens Institute ofTechnology began working with cohorts of teaching faculty who teach the core Science, Math andEngineering courses taken by 85% of first year students. Faculty worked together for three yearsto change their instructional practices with the goal to increase the use of active learning andfacilitate development of deep and transferable learning [1]. The General Chemistry curriculum atStevens Institute of Technology, as part of this NSF Foundations project, was redesigned tofacilitate student engagement, motivation and interaction with

Conference Session

ENT Division Technical Session: EM Across the Curriculum II

Collection

2020 ASEE Virtual Annual Conference Content Access

Authors

Michael J. Rust, Western New England University

Tagged Topics

Diversity

Tagged Divisions

Entrepreneurship & Engineering Innovation

and calculate out its profit  Number of individuals w/ diabetes worldwide  It opened my eyes and made me realize producing and selling a medical device or any products is not as easy as it looks  I learned how to research a country’s economics and use that to see if a product is worth market share  Learned how to research and assess a market  Good group dynamic, interesting to look into different markets  This was a very interesting project that had us look objectively at a product and the market of it beyond the United States  Learned how to view a possible market for expansion based on economic status and need for the device  Learned how to compare markets based on

Conference Session

Engineering Physics and Physics Division Technical Session 2

Collection

2020 ASEE Virtual Annual Conference Content Access

Authors

Robert A. Ross, University of Detroit Mercy

Tagged Divisions

Engineering Physics and Physics

engineering students.[1,2] We also useit as a gateway to motivate the introduction of Dirac notation into the engineeringcurriculum.[3,4]In this paper we provide some examples of useful applications of quantum entanglement that canbe simulated in an upper level modern physics course. We describe some simple algorithms thatstudents are guided to develop in the MATLAB environment. We also present the results ofsome simulations. These projects are well received by students and taking the time to introducethem does not harm their performance on a research-based assessment instrument.Schrödinger introduced “entanglement” into the scientific vocabulary in 1935.[5] It is interestingthat the phrase was essentially absent from publication until around 1990

Conference Session

Pre-college Engineering Education Division Technical Session 12

Collection

2020 ASEE Virtual Annual Conference Content Access

Authors

Ayse Asatekin, Tufts University ; Isadora Shamah, Tufts University; Abigail Anne Klotz; Merredith D. Portsmore, Tufts University; Michael Forte, Tufts University; Russell Lincoln Shute

Tagged Divisions

Pre-College Engineering Education

/middleschoolchemeThis project was supported by NSF grant # 1553661