By incorporating writing in engineering courses, we can move toward several important educational goals. Writing allows students to develop and use critical thinking skills. It enhances active learning and addresses the needs of students with different learning styles. It is a uniquely powerful tool for assessing student understanding. Writing becomes particularly useful in engineering education when demonstrated as a process. Similarities between the writing and design processes can be used to highlight the fact that there is often no single “correct” solution in either and that feedback and revision are often crucial to both. Finally, the status of our profession is enhanced when engineering graduates can communicate effectively. This paper provides specific examples of how we have employed writing in our courses over the last three years and how it has served to enhance outcomes in these courses.
at Martin. Dr. Helgeson received B.S. degrees in both electrical and civil engineering, an M.S. in electral engineering, and a Ph.D. in structural engineering from the University of Buffalo. He actively involves his undergraduate students in mutli-disciplinary earthquake structural control research projects. He is very interested in engineering educational pedagogy, and has taught a wide range of engineering courses.
In this paper, an experimental demonstration employing the decomposition of the timereversal operator (known as DORT) in combination with pulse inversion is reported, allowing one to detect and selectively focus on nonlinear targets. DORT is a technique based on a multistatic configuration that separates the detected targets by means of eigendecomposition of the time reversal operator allowing for selective transmission of waves towards a target of interest. Pulse inversion is a technique that enhances harmonic responses while suppressing fundamental responses. By applying DORT with pulse inversion (PI-DORT), harmonic detection and selective transmission to detected nonlinear targets can be enhanced. The results from our experiment show that PI-DORT can effectively detect and separate nonlinear targets for selective transmission.
Phase coexistence during the spin-reorientation Morin transition in haematite (α-Fe2O3) was investigated by observing phase boundary movements under the influence of temperature and of a magnetic field, using synchrotron radiation white beam section topography. The sample was a high quality (111) platelet shaped crystal, 1.1 mm thick. The phase boundaries are observed to move while remaining nearly parallel to (111). Nucleation of the weak ferromagnetic phase and pinning of interphase boundaries on defects located in the bulk of the crystal were observed. The observed behaviour patterns are discussed in terms of the elastic and magnetostatic energies involved.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.