Physics senior section.* Donaldson, N.L. Department of Math, Physics and Computer Science, Rockhurst University This article is about Rockhurst University. For Rockhurst High School, see Rockhurst High School. For the Rockhurst mansion in Newport, Rhode Island, see Rockhurst (Rhode Island). . Investigating Student Learning In An Application --Based Physics Course. The research for this course resulted from a desire to serve student learning and satisfy the Physics needs of Occupational Therapy and Communication Science Disorder students at Rockhurst University. Students in Rockhurst's Occupational Therapy and Communication Science Disorder programs are required to take only one semester of physics for their major. With previously offered physics courses, students were getting a heavy emphasis on mechanics and the associated mathematical problems and missing all of the second semester physics concepts that are very applicable to their majors (states of matter states of matter, forms of matter differing in several properties because of differences in the motions and forces of the molecules (or atoms, ions, or elementary particles) of which they are composed. , thermodynamics thermodynamics, branch of science concerned with the nature of heat and its conversion to mechanical, electric, and chemical energy. Historically, it grew out of efforts to construct more efficient heat engines—devices for extracting useful work from expanding , waves and sound, electricity, optics). A one-semester physics course was therefore developed for the Occupational Therapy and Communication Science Disorder students to cover topics that illustrate the applicability of physics to students' major area of study. A course project was incorporated for physics students to relate physics topics learned to career interests. A pre/post attitude survey was developed and administered by graduate Occupational Therapy students who chose the relevance of physics to Occupational Therapy as their graduate Capstone Project. Results from pre/post attitude and content tests administered by the instructor showed a strong improvement in attitude and content knowledge regarding physics concepts. Additionally, students submitted quality end-of-semester presentations relating physics to their major area of study (Occupational Therapy or Communication Sciences Disorders). Fricke,B.A., D. Bandyopadhyay *, A.K. Ranjan, M.F. McClernon and B.R. Becker. Civil and Mechanical Engineering Division, School of Computing and Engineering, University of Missouri--Kansas City. Determination Of Heat Transfer Coefficients Of Foods. The freezing of food is one of the most significant applications of refrigeration refrigeration, process for drawing heat from substances to lower their temperature, often for purposes of preservation. Refrigeration in its modern, portable form also depends on insulating materials that are thin yet effective. . In order for freezing operations to be cost-effective, it is necessary to optimally design the refrigeration equipment. This requires estimation of the freezing times of foods and the corresponding refrigeration loads. These estimates, in turn, depend upon the surface heat transfer coefficient for the freezing operation. This paper describes the thermodynamics of food freezing and reviews basic freezing time estimation methods. It also describes a study which was initiated to resolve deficiencies in heat transfer coefficient data for food freezing processes. Members of the food refrigeration industry were contacted to collect freezing curves and surface heat transfer data. A unique iterative algorithm was developed to estimate the surface heat transfer coefficients of foods based upon their freezing curves. Making use of this algorithm, heat transfer coefficients for various food items were calculated from the freezing curves collected during the industrial survey. The accuracy of the calculated heat transfer coefficients was found to be within [+ or -] 30%. These heat transfer coefficients were used to calculate the Nusselt number The Nusselt number is a dimensionless number that measures the enhancement of heat transfer from a surface that occurs in a 'real' situation, compared to the heat transferred if just conduction occurred. , Prandtl number The Prandtl number is a dimensionless number approximating the ratio of momentum diffusivity (viscosity) and thermal diffusivity. It is named after Ludwig Prandtl. It is defined as: pertaining to logarithm. logarithmic relationship when the logs of two variables plotted against each other create a straight line. correlation was obtained in the form of Nu= C[Pr.sup.m][Re.sup.n]. Such information is important in the design and operation of cooling and freezing facilities and will be of immediate usefulness to engineers involved in the design and operation of such systems. * Shen Shen, in the Bible, place, perhaps close to Bethel, near which Samuel set up the stone Ebenezer. , J., P.C. Gibbons Famous people named Gibbons include:
or kohen (Hebrew: “priest”) Jewish priest descended from Zadok (a descendant of Aaron), priest at the First Temple of Jerusalem. The biblical priesthood was hereditary and male. , R., Eylon, B., Ganiel, M. 1983; Fredette, N.H., Lochhead, J. 1980; Osborne, R. 1983; Shipstone, D. M. 1984 & 1988). The course is designed to accomplish conceptual change toward accepted scientific conceptions (Gibbons, P.C., McMahon, A.R, & Wiegers, J.F. 2003). Our results support that using the research-based tests to identify alternative conceptions is a promising way to use the knowledge of alternative conceptions in professional development. Comparing the teachers' conceptions to accepted scientific conceptions in discussions of test results with teachers, encourages them to try to understand the scientific conceptions and to make them their own. James M. Borgwald Lincoln University |
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