Digital Commons Network^™

Dynamics Of Elastic Sheets With Bending Stiffness, Michael Gene Hilgers

Business and Information Technology Faculty Research & Creative Works

A theory describing the motion of nonlinear elastic membranes with bending stiffness is formulated. The strain energy density for these materials depends on the second derivatives of the deformation as well as the first derivatives. A compatible kinetic energy density requires velocity gradient terms to agree to the same order as the strain energy density. The equations of motion are derived using Hamilton's principle. Due to the velocity gradient dependence of the kinetic energy density, the equations of motion are found to possess a rotary inertia term which is considered from a variety of perspectives. The motion of a spinning …

The Effect Of Casting Shape And Size On Solidification Time: A New Approach, Murat Tiryakioǧlu, Ergin Tiryakioǧlu, Donald R. Askeland

Materials Science and Engineering Faculty Research & Creative Works

The limitations of Chvorinov's Rule for predicting the solidification time of a casting are discussed and previous studies intended to modify Chvorinov's Rule in order to express the effect of the size and shape of castings on solidification time are reviewed. A new model that introduces a shape factor is presented that predicts the solidification times of castings as well as or better than Chvorinov's Rule, particularly for more complex shapes. The validity of the new model is compared with the conventional Chvorinov's Rule by a statistical analysis of twelve sets of data obtained from the literature.

Hydro Unit Commitment In Hydro-Thermal Optimization, Chao-An Li, E. Hsu, Chung-Li Tseng, A. J. Svoboda, R. B. Johnson

Engineering Management and Systems Engineering Faculty Research & Creative Works

In this paper, the authors develop a model and technique for solving the combined hydro and thermal unit commitment problem, taking into full account the hydro unit dynamic constraints in achieving overall economy of power system operation. The combined hydrothermal unit commitment problem is solved by a decomposition and coordination approach. Thermal unit commitment is solved using a conventional Lagrangian relaxation technique. The hydro system is divided into watersheds, which are further broken down into reservoirs. The watersheds are optimized by network flow programming (NFP). Priority-list-based dynamic programming is used to solve the hydro unit commitment (HUC) problem at the …

A Catalogue Of Mayan Glyphs: A Study In Information Design, Timothy J. Wood

Theses

Not provided.

Teachers' Attitudes Toward Computer Technology And Factors Influencing Their Attitudes And Adoption Of Computer Technology In Classroom Instruction : A Literature Review, Huiping Ding

Graduate Research Papers

With the introduction of computer literacy into curriculum, teachers' attitudes toward computer technology and computer adoption in the classroom teaching remain major concerns for educators. This paper is intended to review the literature on teachers' attitudes toward the use of computer technology as an instructional tool in classroom teaching and factors influencing their attitudes toward their use of computers. Their attitudes differ but are positive about teaching with computers if some barriers are overcome and some problems are solved, such as lack of training and accessibility.

The literature review reveals that teachers have concerns and anxieties concerning computer technology, its …

Teaching Fractions Through The Multiple Intelligences, Lisa K. Freese

Graduate Research Papers

Fractions are frequently used in daily life. However, many students have difficulty learning fraction concepts. In addition, some students begin the study of fractions with negative impressions.

The writer of this article uses Howard Gardner's theory of multiple intelligences to address the difficulties students face in learning fraction concepts. Dr. Howard Gardner, the creator of the Theory of Multiple Intelligences (Ml Theory), believes that it is unfair to teach all students in the same way. Students need opportunities to solve relevant problems that are meaningful to their everyday lives. Rather than concentrating on singular viewpoints and exclusive answers when studying …

Promoting Gender Equity In The Elementary Learning Environment, Amy Elizabeth Roberts

Graduate Research Papers

This research review discusses the importance of teaching in a gender equitable manner. It examines the negative interactions teachers have with their students, many times without being aware of it. The effects of each of these negative teacher behaviors are explained and practical strategies and interventions are suggested to reduce the negative interactions.

Many of these strategies can be teacher directed, but strategies involving students, colleagues, and parents are also presented. The interventions are beneficial not only to female students but to male students as well. The Gender Expectations and Student Achievement (GESA) teacher training program is discussed and many …

A Summary Of Assessment Strategies For A Multi-Age Classroom, Tamera Frost

Graduate Research Papers

Many schools are implementing multi-age programs. This non-traditional teaching approach calls for methods of assessing students' learning that are consistent with the ways in which they are taught. The traditional methods of assessment require teachers to use the same assessment tool with every child. This is not consistent with the individualized approach to pedagogy that is fundamental in multi-age classrooms. Furthermore standardized assessment does not challenge some students, it frustrates other students, and does not provide the kinds of information needed for formative evaluation.

The author of this project has developed a summary of assessment tools to implement in eight-to …

A Comprehensive Review Of Treatment Options For Children With Attention Deficit Hyperactivity Disorder, Kristin Vanderah

Graduate Research Papers

Attention Deficit Hyperactivity Disorder (ADHD), a disorder affecting between 3 and 5 percent of school-age children, manifests as a combination of three core skill deficits: inattention, hyperactivity, and impulsivity. The deficits have been found to present children with many difficulties in both home and school settings. Thus, comprehensive treatment for individuals with ADHD is of paramount importance to their development and their academic and social experiences. The content of this paper is comprised of a review of the recent research that has been published regarding the three major theoretical orientations of ADHD interventions (pharmacological, behavioral, and multimodal treatment). All of …

Children Of Divorce : Implication To Teaching, Gloria Mao

Graduate Research Papers

The primary focus of this paper is the causes of divorce and their effects on elementary-age children. The adjustment problems of children of divorce in classrooms are examined. The importance of teachers' roles in easing the transition to school for children of divorce is emphasized. Teachers are assumed to be in a better position to observe the changes of children of divorce and to help them to adjust to their parents' divorce. By being sensitive and supportive, teachers can make a difference in their students' lives. A 7-hour workshop designed to enhance teachers' understanding about children of divorce is described.

Educational Reform Through The Implementation Of National Standards: A Response, Richard J. Reynolds

Mid-Western Educational Researcher

At this writing, federal initiatives for education reform seem to be taking their last gasps. There is a question as to whether Goals 2000 will make it to the year 2000. The development of voluntary, national standards has generated considerable debate both as to the desirability of such standards and the enlarged federal role in education. What is killing these initiatives and are they worth saving?

Front Matter, Deborah L. Bainer, Gene A. Kramer, Richard M. Smith

Mid-Western Educational Researcher

Front Matter

Minds-On And Hands-On Activity: Improving Instruction In Science For All Students, Thomas Andre

Mid-Western Educational Researcher

This paper briefly reviews evidence on gender inequities in science education. It argues that making science instruction more effective is one way in which greater equity can be achieved. A line of research conducted in my laboratory dealing with conceptual change (CC) approaches to science instruction is discussed. CC instruction explicitly activates students’ pre-existing conceptions, leads students to be dissatisfied with less than adequate conceptions, and helps students construct more effective conceptions. Across several studies, CC instruction was found to be more effective than didactic instruction. CC features added to science text and science lessons facilitate learning for both males …

A Finite Element Model With Penalty Formulation To Predict The Pressure And Velocity Behavior In A Pultrusion Die Inlet, Srikanth Elaprolu

Electronic Theses and Dissertations

No abstract provided.

Procompetitive Market Access, Marie Thursby, Kala Krisna, S. Roy

Purdue CIBER Working Papers

The view that US businesses are being unfairly hurt by barriers to access in foreign markets has raised demands for market access requirements (MARs) from within US industry and government alike. We show that, contrary to the prevailing wisdom of the recent literature, MARs can be implemented in a procompetitive manner. The basic idea is that the requirement must be implemented in a way that provides the right incentives for increasing aggregate output or lowering prices.

Computer-Aided Mechanical Assembly Design Using Configuration Spaces, Leo Joskowicz, Elisha Sacks

Department of Computer Science Technical Reports

No abstract provided.

Financial Prediction And Trading Strategies Using Neurofuzzy Approaches, K. N. Pantazopoulos, L. H. Tsoukalas, N. G. Bourbakis, M. J. Brün, Elias N. Houstis

Department of Computer Science Technical Reports

No abstract provided.

Performance Analysis And Visualization Tools For Parallel Computing, K. N. Pantazopoulos, Elias N. Houstis

Department of Computer Science Technical Reports

No abstract provided.

Future Scientific Software Systems, John R. Rice

Department of Computer Science Technical Reports

No abstract provided.

Interface Relaxation Methods For Elliptic Differential Equations, John R. Rice, P. Tsompanopoulou, E. Vavalis

Department of Computer Science Technical Reports

No abstract provided.

Computing Volumes Of Solids Enclosed By Recursive Subdivision Surfaces, Jörg Peters, Ahmad Nasri

Department of Computer Science Technical Reports

No abstract provided.

Computing Moments Of Piecewise Polynomial Surfaces, Carlos Gonzalez-Ochoa, Scott Mccammon, Jörg Peters

Department of Computer Science Technical Reports

No abstract provided.

Videotext Database System, Haitao Jiang, Danilo Montesi, Ahmed K. Elmagarmid

Department of Computer Science Technical Reports

No abstract provided.

The Impact Of Computer Based Interactive Instruction (Cbii) In Improving The Teaching-Learning Process In Introductory College Physics, Afif A. Jawad

Wayne State University Dissertations

Institutes are incorporating computer-assisted instruction (CAI) into their c1assrooms in an effort to enhance learning. The implementation of computers into the classroom is parallel with education's role of keeping abreast with societal demands. The number of microcomputers in schools has increased tremendously. Computer Based Interactive Instruction (CBBI) software is available for the language arts, mathematics, science, social studies, etc. The traditional instruction, supplemented with CAI, seems to be more effective than traditional instruction alone. Although there is a large quantity of research regarding specific aspects of learning through computers, there seems to be a lack of information regarding the impact …

An Evaluation Of Item Response Theory For Detecting Differential Item Functioning Of Examinees' Responses To The Seventh Grade Mathematics Meap Test Investigating Learner Characteristics /, David Charles Odett

Wayne State University Dissertations

Historically test fairness has been an issue for stakeholders such as test makers, administrators, educators, examinees, and others. The consequence of bias testing creates "high stakes" for all stakeholders. During the past 50 years several cycles of dissatisfaction and reform occurred in educational testing (McGhee, 1995). Large scale testing was used to make decisions regarding college entrance, employment opportunities, funding, school policies and curriculum. The Michigan Educational Assessment Program (MEAP) was a large scale testing program requiring students to pass several specific sections (reading, mathematics, and science) before receiving a state-endorsed diploma. Test measurement continues to come under the microscope …

The Hobbesian Transformation Of America As Seen Through The Eyes Of Three Southern Conservatives : (John C. Calhoun, Robert L. Dabney, And Donald Davidson / By Andrew E. Roesell, Andrew E. Roesell

Electronic Theses and Dissertations

No abstract provided.

Approximation Of Spin Coating With A Genetic Algorithm Based Neural Network, Ching-Fu Li

Electronic Theses and Dissertations

No abstract provided.

Dynamic Characteristics Of A Four-Bar Linkage Coupler Fabricated From Pultruded Composite Materials, Meganathan Mohanraj

Electronic Theses and Dissertations

No abstract provided.

Behavior Of The Pressure Rise In A Pultrusion Die Inlet, Kevin S. Raper

Electronic Theses and Dissertations

No abstract provided.

Project Leap (Learn, Earn, And Prosper) : A Program Overview And An Analysis Of Affective And Pedagogical Factors In Teacher/Student Relationships By Deetra Ann Sims, Deetra Ann Sims

Electronic Theses and Dissertations

No abstract provided.