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Articles 61 - 69 of 69
Full-Text Articles in Engineering
Designing A Small-Footprint Curriculum In Computer Science, Allen Downey, Lynn Stein
Designing A Small-Footprint Curriculum In Computer Science, Allen Downey, Lynn Stein
Lynn Andrea Stein
We describe an innovative computing curriculum that combines elements of computer science, engineering and design. Although it is tailored to the constraints we face at Olin College, it contains elements that are applicable to the design of a CS major at a small school, a CS minor, or an interdisciplinary program that includes computing. We present the core courses in the program as well as several courses that are meant to connect the computing curriculum to other fields. We summarize the lessons we have learned from the first few years of this program.
Work In Progress - A Provisional Competency Assessment System, Mark Somerville, Debbie Chachra, Jonathan Chambers, Ellen Cooney, Kristen Dorsey, John Geddes, Gill Pratt, Kathryn Rivard, Ann Schaffner, Lynn Stein, Jonathan Stolk, Stephen Westwood, Yevgeniya Zastavker
Work In Progress - A Provisional Competency Assessment System, Mark Somerville, Debbie Chachra, Jonathan Chambers, Ellen Cooney, Kristen Dorsey, John Geddes, Gill Pratt, Kathryn Rivard, Ann Schaffner, Lynn Stein, Jonathan Stolk, Stephen Westwood, Yevgeniya Zastavker
John B. Geddes
Over the last two years Olin College has been defining and implementing a provisional system to develop and assess student competency levels. The system particularly emphasizes the importance of creating a community of practice that includes not only faculty but also staff and students. In this paper we provide an overview of the design process, and comment on the results of our first year of implementing the system.
Outside The Classroom: Gender Differences In Extracurricular Activities Of Engineering Students, Debbie Chachra, Helen Chen, Deborah Kilgore, Sheri Sheppard
Outside The Classroom: Gender Differences In Extracurricular Activities Of Engineering Students, Debbie Chachra, Helen Chen, Deborah Kilgore, Sheri Sheppard
Debbie Chachra
Data from the Academic Pathways Study, a component of the NSF-funded Center for the Advancement of Engineering Education, were used to investigate engineering student involvement in extracurricular activities. The study design used a variety of methods: the results presented here are from longitudinal and cross-sectional surveys of engineering students as well as interviews with graduating seniors. Quantitative data from both surveys suggest that women place higher importance on extracurricular activities than their male counterparts, as well as reporting higher participation in both engineering-related and non-engineering-related extracurricular activities. In addition, the importance of non-engineering extracurricular activities and the level of involvement …
Work In Progress - Using Video And Self-Reflection To Enhance Undergraduate Teams, Nick Tatar, Debbie Chachra, Yevgeniya Zastavker, Jonathan Stolk
Work In Progress - Using Video And Self-Reflection To Enhance Undergraduate Teams, Nick Tatar, Debbie Chachra, Yevgeniya Zastavker, Jonathan Stolk
Debbie Chachra
Engineers today must be able to communicate and collaborate in teams. They also must be comfortable making adjustments within the team to maintain flow and progress toward project goals. With these goals in mind, students in a first-semester engineering seminar course were asked to videotape a team meeting in their design course and to write a self-reflection paper after viewing their video. After analyzing the video, students were asked to provide clear suggestions in their self-reflection paper for improving their own and their team's performance. Our preliminary analysis showed that video-supported reflections: 1) may be more effective than memory for …
Drowning In Method, Thirsty For Values: A Call For Cultural Inquiry, Jonathan Stolk, Mark Somerville, Debbie Chachra
Drowning In Method, Thirsty For Values: A Call For Cultural Inquiry, Jonathan Stolk, Mark Somerville, Debbie Chachra
Debbie Chachra
A decade or more has passed since publication of most calls for reform in engineering education. In the ensuing time, there has been significant work on the design, implementation, and transferability of appropriate methodsand techniques - accompanied by, in most cases, little discussion of the values and beliefs of the people involved. But many theories of change rely on a fundamental shift in human beliefs and values, and purport that institutionalization of methods is impossible without this shift. Given this, now may be a reasonable time to re-visit the questions: What are the values of people involved in engineering education, …
Work In Progress - A Provisional Competency Assessment System, Mark Somerville, Debbie Chachra, Jonathan Chambers, Ellen Cooney, Kristen Dorsey, John Geddes, Gill Pratt, Kathryn Rivard, Ann Schaffner, Lynn Stein, Jonathan Stolk, Stephen Westwood, Yevgeniya Zastavker
Work In Progress - A Provisional Competency Assessment System, Mark Somerville, Debbie Chachra, Jonathan Chambers, Ellen Cooney, Kristen Dorsey, John Geddes, Gill Pratt, Kathryn Rivard, Ann Schaffner, Lynn Stein, Jonathan Stolk, Stephen Westwood, Yevgeniya Zastavker
Debbie Chachra
Over the last two years Olin College has been defining and implementing a provisional system to develop and assess student competency levels. The system particularly emphasizes the importance of creating a community of practice that includes not only faculty but also staff and students. In this paper we provide an overview of the design process, and comment on the results of our first year of implementing the system.
An Autoparametric, Electromagnetic Ambient Vibration Energy Harvester, Johannes Santen, Nitin Kapania, Christopher Lee
An Autoparametric, Electromagnetic Ambient Vibration Energy Harvester, Johannes Santen, Nitin Kapania, Christopher Lee
Christopher Lee
Results are presented for the design and testing of an electromagnetic device to convert ambient mechanical vibration into electricity. The design of the device is based on an L-shaped beam structure which is tuned so that the first two (bending) natural frequencies have a (near) two-to-one ratio. This creates an internal resonance or autoparmetic condition that can result in a nonlinear dynamic response to a sinusoidal (base) displacement excitation over an extended frequency range. This is in contrast to single degree-of-freedom, linear-dynamics based vibration harvesters which convert energy in a very narrow frequency band. Representative measurements of displacement and power …
Performance Of Multi-Antenna Mmse Receivers In Non-Homogeneous Poisson Networks, Junjie Zhu, Siddhartan Govindasamy
Performance Of Multi-Antenna Mmse Receivers In Non-Homogeneous Poisson Networks, Junjie Zhu, Siddhartan Govindasamy
Siddhartan Govindasamy
A technique to compute the Cumulative Distribution Function (CDF) of the Signal-to-Interference-plus-Noise-Ratio (SINR) for a wireless link with a multi-antenna, Linear, Minimum-Mean-Square-Error (MMSE) receiver in the presence of interferers distributed according to a non-homogenous Poisson point process on the plane, and independent Rayleigh fading between antennas is presented. This technique is used to compute the CDF of the SINR for several different models of intensity functions, in particular, power-law intensity functions, circular-symmetric Gaussian intensity functions and intensity functions described by a polynomial in a bounded domain. Additionally it is shown that if the number of receiver antennas is scaled linearly …
A Perching Landing Gear For A Quadcopter, Elsa Culler, Gray Thomas, Christopher Lee
A Perching Landing Gear For A Quadcopter, Elsa Culler, Gray Thomas, Christopher Lee
Christopher Lee
The design, fabrication, and testing of two prototypes of a landing gear mechanism that would allow a quadcopter to grasp and perch upon a branch-like structure are presented. The prototypes are based upon a snapping-claw mechanism that is triggered on the impact of landing. A complaint claw, fabricated using shape deposition manufacturing techniques, can conform to various shapes and contours of perching structures. Results from flight tests with a commercial off-the-shelf quadcopter and zip line tests are presented which demonstrate the performance of the mechanism.