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Articles 1 - 17 of 17
Full-Text Articles in Engineering
En Route To Lifelong Learning? Academic Motivations, Goal Orientations And Learning Conceptions Of Entering First-Year Engineering Students, Jonathan Stolk, Katherine Chen, Robert Martello, Roberta Herter, Taylor Lobe, Boris Taratutin
En Route To Lifelong Learning? Academic Motivations, Goal Orientations And Learning Conceptions Of Entering First-Year Engineering Students, Jonathan Stolk, Katherine Chen, Robert Martello, Roberta Herter, Taylor Lobe, Boris Taratutin
Jonathan Stolk
Although lifelong learning is among the most critical skills required of today's engineering graduates, the complex processes through which individuals develop the attitudes, beliefs, and skills of lifelong learners remains unclear. Instructors have only begun to understand the impacts of academic background, institutional climate, and pedagogy on students' development of the motivations and learning strategies characteristic of lifelong learners. In this ongoing mixed-methods investigation, we draw on existing motivation and self-regulated learning theories to examine how undergraduate students at a small private college and a large public university become more self-directed as they progress through the first two years of …
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
Jonathan Stolk
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 …
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
Jonathan Stolk
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.
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
Jonathan Stolk
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- Understanding Discomfort: Student Responses To Self-Direction, Jonathan Stolk, Mark Somerville, John Geddes, Rob Martello
Work In Progress- Understanding Discomfort: Student Responses To Self-Direction, Jonathan Stolk, Mark Somerville, John Geddes, Rob Martello
Jonathan Stolk
The literature consistently reports that students express some degree of discomfort when they are thrown into self-directed learning environments. In this paper, we present the preliminary results of an investigation of the causes of student discomfort in several different self-directed project-based courses. Our results suggest that student motivation and opportunities for the development of deep understanding and transferable skills are important in creating a positive self-directed learning experience. Negative experiences and student discomfort in self-directed environments may stem from problems with self-regulation, low self-perceptions of content learning, lack of personal engagement with the topic, and difficulties related to the social …
Student-Directed, Project-Based Learning In An Integrated Course Block, Jonathan Stolk, Rob Martello, Steven Krumholz
Student-Directed, Project-Based Learning In An Integrated Course Block, Jonathan Stolk, Rob Martello, Steven Krumholz
Jonathan Stolk
Imagine a course block in which students discuss the cultural implications of 17th century iron working in North America in one hour, and design experiments to examine connections between composition and strength in modern steel padlocks immediately afterward. In the Paul Revere:Tough as Nails course block, students don’t just study materials science and history of technology topics … they experience them. Through a series of readings, discussions, and self designed projects, students explore materials science concepts alongside the social, cultural, and environmental factors that shaped technological and scientific history. Although some formal in class activities are planned, many class sessions …
Engineering Students' Conceptions Of Self-Directed Learning, Jonathan Stolk, John Geddes, Mark Somerville, Robert Martello
Engineering Students' Conceptions Of Self-Directed Learning, Jonathan Stolk, John Geddes, Mark Somerville, Robert Martello
Jonathan Stolk
Researchers have developed numerous theories and developmental models to describe self directed learning, lifelong learning, and self-regulated learning. The literature includes a large body of research that illustrates the cognitive, metacognitive, motivational, affective, and behavioral attributes of self-directed learners; the influences of social and physical environment on self-directed learning development; and the roles of self-perceptions, causal orientations,learning conceptions, and demographics in determining certain self-directed learning responses. But how do undergraduate engineering students characterize and critique self-directed learning? This paper evaluates the responses of engineering students to questions regarding the definition of self-direction and the primary positive or negative factors contributing …
Paul Revere In The Science Lab: Integrating Humanities And Engineering Pedagogies To Develop Skills In Contextual Understanding And Self-Directed Learning, Rob Martello, Jonathan Stolk
Paul Revere In The Science Lab: Integrating Humanities And Engineering Pedagogies To Develop Skills In Contextual Understanding And Self-Directed Learning, Rob Martello, Jonathan Stolk
Jonathan Stolk
ABET, ASEE, and the wider engineering community have long acknowledged the potential benefits of interdisciplinary education, including the opportunity to develop non-technical skills such as communication and teamwork while cultivating a broader awareness of the ethical, societal, historical, and environmental impacts of engineering work. Instructors have encountered many challenges in planning and implementing integrated courses, such as the difficulty of coordinating the teaching methods, content, and learning objectives of different academic disciplines in a finite and already overcrowded curriculum. This paper presents the goals, design approach, implementation, and selected outcomes of one integrated project-based course (using Paul Revere and other …
Creating A Project-Based Curriculum In Materials Engineering, Jonathan Stolk, Katherine Chen, Linda Vanasupa, Blair London, Trevor Harding, Richard Savage, William Hughes
Creating A Project-Based Curriculum In Materials Engineering, Jonathan Stolk, Katherine Chen, Linda Vanasupa, Blair London, Trevor Harding, Richard Savage, William Hughes
Jonathan Stolk
For the past two years, the Cal Poly Materials Engineering department has been on an endeavor to create a modern, innovative curriculum to train a more diverse set of materials engineers for the global and complex world of the 21st century. The traditional lecture and laboratory activities have evolved into more open-ended, project-based experiences that help students develop additional skills and contextualize the learning of theories. Different types of projects are embedded throughout the curriculum to achieve particular learning objectives while emphasizing different content. During class time, students are extremely active and the faculty act as coaches and mentors …
Chemical Synthesis And Characterization Of Low Thermal Expansion- High Conductivity Cu-Mo And Ag-Mo Composites, Jonathan Stolk, Arumugam Manthiram
Chemical Synthesis And Characterization Of Low Thermal Expansion- High Conductivity Cu-Mo And Ag-Mo Composites, Jonathan Stolk, Arumugam Manthiram
Jonathan Stolk
Heat dissipation and thermal expansion mismatch are extremely important issues in many electrical and electronics applications, and the materials used for thermal managementin such applications have attracted a great deal of attention in recent years. The move in the microelectronics industry toward higher circuit board chip densities and packageless chip designs such as flip chips has prompted the need for improved thermal management materials. If heat extraction and thermal expansion are not properly addressed, thermal mismatch among the materials in electronic assemblies may lead to high interfacial shear strains and premature component failure.
Chemical Synthesis And Properties Of Nanocrystalline Cu-Fe-Ni Alloys, Jonathan Stolk, Arumugam Manthiram
Chemical Synthesis And Properties Of Nanocrystalline Cu-Fe-Ni Alloys, Jonathan Stolk, Arumugam Manthiram
Jonathan Stolk
The chemical reduction of Cu2+, Fe3+, and Ni2+ ions with sodium borohydride in aqueous solution followed by heat treatments at 300–900°C in a H2 atmosphere was investigated to obtain nanocrystalline Cu–Fe–Ni, which may have low thermal expansion and enhanced thermal and electrical conductivities. The samples were characterized by X-ray diffraction, optical microscopy, transmission electron microscopy, energy dispersive X-ray spectroscopy, thermomechanical analysis, and electrical conductivity measurements. Thermal conductivity was estimated using the Wiedemann–Franz law. Sintering lead to the formation of a Cu-rich phase and a γ–(Fe, Ni) Invar phase. The growth and stability of the …
A Cost-Effective Fabrication Method For Ionic Polymer-Metal Composites, Jonathan Stolk, Michael Siripong, Susan Fredholm, Que Anh Nguyen, Brian Shih, Johannah Itescu
A Cost-Effective Fabrication Method For Ionic Polymer-Metal Composites, Jonathan Stolk, Michael Siripong, Susan Fredholm, Que Anh Nguyen, Brian Shih, Johannah Itescu
Jonathan Stolk
To date, many processes have been used for the preparation of ionic polymer-metal composite (IPMC) artificial muscle membranes from conductive metals and perfluorosulfonic polymers such as Nafion. The most widely used of these methods is the platinum plating process, which involves chemical reduction of ionic salt solutions. Although these chemical electroding techniques produce IPMCs with outstanding surface electrodes and excellent performance characteristics, they are relatively costly and time-consuming. In this paper, we describe a novel fabrication process for fast preparation of low-cost Ni-Au-Nafion IPMCs. The process involves the formation of an adherent surface layer on prepared Nafion through DC sputter …
Non-Traditional Assessments For New Learning Approaches: Competency Evaluation In Project-Based Introductory Materials Science, Jonathan Stolk, Mark Somerville, Steven Krumholz
Non-Traditional Assessments For New Learning Approaches: Competency Evaluation In Project-Based Introductory Materials Science, Jonathan Stolk, Mark Somerville, Steven Krumholz
Jonathan Stolk
Over the last twenty years, NSF and the engineering community have called for systemic changes in engineering education, including an emphasis on contextual understanding; increased teaming skills, including collaborative, active learning; and an improved capacity for life-long, self-directed learning. In addition, ABET has called for engineering graduates that demonstrate an ability to apply science and engineering, and ABET requires assessment processes designed to measure student achievement of learning outcomes. Olin College has responded to these calls for change by embracing new learning approaches and assessment techniques, and by developing project-based courses that encourage experiential understanding of content and aid the …
Synthesis And Processing Of Nanocrystalline Ag-Fe-Ni For Low Thermal Expansion- High Conductivity Thermal Management Applications, Jonathan Stolk, Michael Gross, Daniel Stolk, Arumugam Manthiram
Synthesis And Processing Of Nanocrystalline Ag-Fe-Ni For Low Thermal Expansion- High Conductivity Thermal Management Applications, Jonathan Stolk, Michael Gross, Daniel Stolk, Arumugam Manthiram
Jonathan Stolk
Nanocrystalline Ag–Fe–Ni powders were produced by a reduction of the aqueous metal ion solutions with sodium borohydride and then converted to fine-grained silver–Invar alloys that offer attractive thermal, electrical, and mechanical properties. The samples were characterized by x-ray diffraction, scanning electron microscopy, wavelength dispersive x-ray spectrometry, thermomechanical analysis, microhardness measurements, and electrical conductivity measurements; thermal conductivity was estimated using the Wiedemann–Franz law. Sintering of a specimen with a nominal composition of 60 wt% Ag–25.6 wt% Fe–14.4 wt.% Ni led to the formation of a two-phase silver–Invar alloy with a grain size of approximately 2 μm, a hardness of 133 HK200g, …
Implementation Of Paul Revere: Tough As Nails, An Integrated Project-Based Course On Materials Science And History Of Technology, Jonathan Stolk, Robert Martello
Implementation Of Paul Revere: Tough As Nails, An Integrated Project-Based Course On Materials Science And History Of Technology, Jonathan Stolk, Robert Martello
Jonathan Stolk
Olin College sophomores participate in integrated course blocks that merge technical content with business, arts, humanities, and social science topics, allowing students to work on engineering projects that have broader implications than the purely technical. In this paper, we present Paul Revere: Tough as Nails, a multidisciplinary course block that combines an introductory materials science course with a history of technology course and a large scale project. In Paul Revere, students explore connections between historical and technological materials science developments through examinations of Paul Revere's metallurgical work and analyses of the relevant social, environmental, political, and economic aspects that contribute …
Sodium Borohydride Reduction Of Aqueous Silver-Iron-Nickel Solutions: A Chemical Route To Synthesis Of Low Thermal Expansion-High Conductivity Ag-Invar Alloys, Jonathan Stolk, Elizabeth Sterling, Lauren Hafford, Michael Gross
Sodium Borohydride Reduction Of Aqueous Silver-Iron-Nickel Solutions: A Chemical Route To Synthesis Of Low Thermal Expansion-High Conductivity Ag-Invar Alloys, Jonathan Stolk, Elizabeth Sterling, Lauren Hafford, Michael Gross
Jonathan Stolk
Thermal management is a critical concern in the design and performance of electronics systems. If heat extraction and thermal expansion are not properly addressed, the thermal mismatch among dissimilar materials may give rise to high thermal stresses or interfacial shear strains, and ultimately to premature system failure. In this article, we present a chemical synthesis process that yields Ag-Invar (64Fe-36Ni) alloys with a range of attractive properties for thermal management applications. Sodium borohydridereduction of an aqueous Ag-Fe-Ni metal salt solution produces nanocrystalline powders, and conventional powder processing converts this powder to fine-grained alloys. The samples are characterized by X-ray diffraction …
Converting Traditional Materials Labs To Project-Based Learning Experiences: Aiding Students' Development Of Higher-Order Cognitive Skills, Jonathan Stolk, Linda Vanasupa, Katherine Chen, Richard Savage, Trevor Harding, Blair London, William Hughes
Converting Traditional Materials Labs To Project-Based Learning Experiences: Aiding Students' Development Of Higher-Order Cognitive Skills, Jonathan Stolk, Linda Vanasupa, Katherine Chen, Richard Savage, Trevor Harding, Blair London, William Hughes
Jonathan Stolk
Against a backdrop of compelling societal needs, graduates in science and engineering now must master their disciplines and demonstrate a sophisticated level of cognitive, affective and social development. This has lead a number of national and international commissions on science and engineering to urge educators to re-think the way in which STEM disciplines are taught. We have chosen to “repackage” a traditional undergraduate materials engineering curriculum in a form designed to promote the development of higher-order cognitive skills like self-directed learning and design. Classic metallurgy experiments have been converted to project-based learning experiences where students are put in the role …