scholarly journals NON-MEDICAL MASKS: OPPORTUNITIES FOR STANDARDS EDUCATION AND ONLINE DESIGN PROJECTS

Author(s):  
David Torvi

While engineering students gain some experience in the use of codes and standards, some may not be exposed to the process used to develop standards, or the history of individual standards. A number of resources on standard development are available to instructors, and knowing the history of a standard will aid in understanding its potential limitations when used in design. This paper will outline how the process of developing standard test methods for non-medical masks during the COVID-19 pandemic can be used as a case study in design courses.  Potential online projects and assignments related to testing of these masks are described, including considerations of material performance, comfort and functional fit, along with examples of analysis that students could perform.  Sample fabric tests that use readily-available supplies to measure water resistance are described to illustrate how assignments and projects could be completed by studentsremotely in an online course.

2021 ◽  
pp. 251512742110290
Author(s):  
Smitesh Bakrania

Most engineering design projects focus primarily on the engineering fundamentals. Studying the business case or manufacturability of a design is often left for other courses, if at all. To address this gap, an existing mechanical engineering course project was modified by embedding the interdependent entrepreneurial dimensions. In the past, junior engineering students developed a reciprocating air engines over two semesters. The modified project extended the engineering fundamentals into an entrepreneurial venture. To accomplish this, students were asked to propose an air engine toy for middle schoolers. The proposed toy had to be assembled, provide a learning opportunity, and demonstrate utility. The students had to ensure the product appealed to those interested in the STEM fields. The students, working in groups, created renders of the final product, assembly instructions, and a guided worksheet for the kids to explore the underlying engineering concept. The groups produced a website with a video pitching their toy concepts. This case study exemplifies how any engineering endeavor can be modified to capture a more holistic simulation of the profession.


2017 ◽  
Vol 2 (2) ◽  
pp. 78
Author(s):  
Nissim Sabag ◽  
David Pundak ◽  
Elena Trotskovsky

During the past two years, we suggested to the college’s engineering students to diversify their general studies with MOOCs. This experiment was awarded scant interest. The college students were then given the opportunity to enroll in a new online course in Hebrew, as part of the college’s general studies. The current paper compares students' attitudes toward MOOC and the online college course. A qualitative method was used, including in-depth interviews, observations of the forum’s activities and a students' opinion questionnaire. The participants were 25 students studied the online course, eight students completed MOOCs (from an engineering college), and 229 students from two colleges who did not study the online course or the MOOCs answered an opinion questionnaire about online courses. The completion of 25 students of the online course in comparison with the eight students who completed the MOOCs indicates a significant preference by the students for the online course over the MOOCs. The main criterion of the students to participate in the MOOCs was their interest in the subject matter, while the online course participants considered their own convenience first. The MOOC students reported a heavy learning load while the online course students reported a reasonable load.


Author(s):  
Craig Merrett

Final year, undergraduate engineering students should be exposed to authentic practices that resemble industry to prepare the students for the field. Given that engineering involves design and implementation, final courses should expose students to both through authentic assessments. Case studies, design and build projects, and open-ended final exams were implemented in three, fourth-year cornerstone engineering courses in mechanical, and sustainable and renewable energy engineering. The effects of these changes differed between case study based projects and build projects. Case study based projects resulted in higher project performance and better exam performance than build projects. The improved performance is indicative of better knowledge transfer and a result of increased opportunities for discussion and collaboration between students. These results are consistent with the Ashford-Rowe model for authentic assessments; however, students were divided on the benefits of the authentic assessments. Students were more resistant to the build projects, as reported through the teaching evaluations, because of the increased work load and scheduling required for build projects. This study recommends that cornerstone courses implement case study or paper design projects and open-ended, case study-based final exams to achieve authentic assessments. The use of build design projects for cornerstone courses is not recommended.


Author(s):  
Mary Ann Nailos ◽  
Dan Stein ◽  
Victor G. Hernandez

Abstract Contamination out gassing is the release of volatile compounds from a solid or liquid, often with the addition of heat. These compounds may condense as thin films on surfaces and cause oxidation, corrosion or contact resistance. Out gassing is more likely to be problematic in system environments in which the temperature is elevated and available oxygen is limited. Moisture in the environment may also be a contributing factor. The paper includes an investigation of three case studies of different types of contamination out gassing that led to system failures. The analytical tools and methods used to determine root cause will be discussed in each case. The first case study examines bridging conductive copper dendrites on a system cable used in a PC system related to the cable shipping materials. The second failure to be discussed is the corrosion of Ag conductor traces in a display panel due to out gassing of sulfur compounds from nearby foam cushioning pads. The third case will explore a DC motor failure due to siloxane out gassing from an adjacent foam pad. Prevention of out gassing can be controlled by material selection and supply chain management. There are also standard test methods that can be used to detect out gassing in suspect material. These methods can be used in conjunction with the specification as requirements for qualification of new materials. Two ASTM test methods, ASTM E-595-77/84 and ASTM E1559-03 pertain to contamination out gassing. This paper includes a discussion of both methods and their advantages and disadvantages as part of a test plan.


Author(s):  
Odile Moreau

This chapter explores movement and circulation across the Mediterranean and seeks to contribute to a history of proto-nationalism in the Maghrib and the Middle East at a particular moment prior to World War I. The discussion is particularly concerned with the interface of two Mediterranean spaces: the Middle East (Egypt, Ottoman Empire) and North Africa (Morocco), where the latter is viewed as a case study where resistance movements sought external allies as a way of compensating for their internal weakness. Applying methods developed by Subaltern Studies, and linking macro-historical approaches, namely of a translocal movement in the Muslim Mediterranean, it explores how the Egypt-based society, al-Ittihad al-Maghribi, through its agent, Aref Taher, used the press as an instrument for political propaganda, promoting its Pan-Islamic programme and its goal of uniting North Africa.


2010 ◽  
Vol 1 (1) ◽  
pp. 75-93
Author(s):  
Jessica Moberg

Immediately after the Second World War Sweden was struck by a wave of sightings of strange flying objects. In some cases these mass sightings resulted in panic, particularly after authorities failed to identify them. Decades later, these phenomena were interpreted by two members of the Swedish UFO movement, Erland Sandqvist and Gösta Rehn, as alien spaceships, or UFOs. Rehn argued that ‘[t]here is nothing so dramatic in the Swedish history of UFOs as this invasion of alien fly-things’ (Rehn 1969: 50). In this article the interpretation of such sightings proposed by these authors, namely that we are visited by extraterrestrials from outer space, is approached from the perspective of myth theory. According to this mythical theme, not only are we are not alone in the universe, but also the history of humankind has been shaped by encounters with more highly-evolved alien beings. In their modern day form, these kinds of ideas about aliens and UFOs originated in the United States. The reasoning of Sandqvist and Rehn exemplifies the localization process that took place as members of the Swedish UFO movement began to produce their own narratives about aliens and UFOs. The question I will address is: in what ways do these stories change in new contexts? Texts produced by the Swedish UFO movement are analyzed as a case study of this process.


2014 ◽  
Vol 1 (1) ◽  
pp. 111-114
Author(s):  
Lal Mohan Baral ◽  
Ramzan Muhammad ◽  
Claudiu Vasile Kifor ◽  
Ioan Bondrea

AbstractProblem-based learning as a teaching tool is now used globally in many areas of higher education. It provides an opportunity for students to explore technical problems from a system-level perspective and to be self-directed life-long learner which is mandatory for equipping engineering students with the skill and knowledge. This paper presents a case study illustrating the effectiveness of implemented Problem-based learning (PBL) during five semesters in the undergraduate programs of Textile Engineering in Ahsanullah University of Science and Technology (AUST). An assessment has been done on the basis of feedback from the students as well as their employers by conducting an empirical survey for the evaluation of PBL impact to enhance the student's competencies. The Evaluations indicate that students have achieved remarkable competencies through PBL practices which helped them to be competent in their professional life.


2019 ◽  
Vol 58 (1) ◽  
pp. 147-159
Author(s):  
Young-Seok Seo ◽  
Bong-Seok Kim
Keyword(s):  

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