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The purpose of the study was to determine the satisfaction of parents with the magnet program in which their child was enrolled as a part of the system-wide elementary magnet alternative plan of the Fort Wayne Community Schools. The level of parent satisfaction was determined by forwarding 1,651 parent questionnaires to randomly selected parents of students attending Fort Wayne Community Schools' elementary magnet schools and magnet program schools for the 1989-90 school year. Nine hundred ten of the 1,651 distributed parent questionnaires were completed, resulting in a 55 percentage response of all possible survey participants.Data frequencies and percentages were tabulated for each question on the parent questionnaire. As a result of a review of related literature, research, and data, the following conclusions were developed:1.The Fort Wayne Community Schools' system-wide elementary magnet alternative plan has a high degree of parental satisfaction. The parents were very satisfied with the educational programs, the varied educational opportunities, and the school staff. Specifically, the following lists highlight unique features of some MAP schools: a. Each school offered a unique specialty curriculum.b. The school operated on an Academy basis, which had certain academic and behavior codes.c. The school provided a full-day kindergarten program.d. The certified staff made application and were selected to teach at magnet schools.2. Race was not a factor determining the high level of parental satisfaction with the MAP plan. a. Magnet Schools(1) Ninety-four percent of the white parents who participated in the survey were satisfied with the magnet school attended by their child.(2) Ninety percent of the black parents who participated in the survey were satisfied with the magnet school attended by their child.b. Magnet Program Schools(1) Eighty-eight percent of the white parents who participated in the survey were satisfied with the magnet program school attended by their child.(2) Eighty-five percent of the black parents who participated in the survey were satisfied with the magnet program school attended by their child.3. There was no significant difference in the degree of parent satisfaction with MAP, whether a parents' child attended a magnet school or a magnet program school. Ninety-three percent of the magnet school parent survey participants indicated satisfaction with their child's school. Eighty-seven percent of the magnet program parent survey participants indicated satisfaction with their child's school.4. The Fort Wayne Community Schools elementary magnet schools and magnet program schools were meeting the expectations of parents.5. Parents felt that "help when needed" for their child was more readily available at an elementary MAP school. Specifically, elementary MAP schools were provided with additional resources above non-magnet school resource allocations, such as; an assistant principal and/or a resource teacher, an administrative aide, fourteen extra hours of school aide time per day, and more dollars on a per pupil basis.6. Although, the two primary purposes for the Fort Wayne Community Schools developing and implementing MAP were: (1) to racially balance its elementary schools, and (2) to serve the needs of students with special interests; "closeness to home" was the main reason parents selected a certain school for their child.7. Magnet program schools were very desirable to parents due to the fact that a change in one's neighborhood attendance area was not required.8. Parents who were given a "choice" regarding the school their child was to attend was more satisfied with the educational setting.9. Based on the high degree of parental satisfaction with MAP, the Fort Wayne Community Schools should explore the possibility of offering more elementary alternative programs.10. The length of time a child was in the elementary magnet school program, had no significant impact upon parental satisfaction.11. An effective transportation system was identified as essential for the success of magnet schools.12. Surveys and parental assessment instruments must be continually used by the Fort Wayne Community Schools to help develop alternative educational programs and to monitor progress.

This thesis adresses the problem of estimating the parameters in a permanent magnet synchronous motor (PMSM). There is an uncertainty about the parameters, due to age and tolerances in the manufacturing process. Parameters such as the resistance and the current to torque factor Kt, changes with respect to temperature as well. The temperature in the motor varies in normal motor operation, due to variations in angular velocity and torques. Online estimation methods with the model reference adaptive systems technique (MRAS) and offline methods are presented. The estimation algorithms are validated in simulations with Matlab/Simulink and also evaluated with experimental data. Experiments were performed on a range of different motors, in realistic scenarios. Relevant factors such as the angular velocity of the rotor and the impact of the gravity force are investigated. The results show that it is possible to estimate the motor factor $K_t$, with an accuracy of two percentage from its reference value in normal industry conditions. The estimated value of the motor inductance is within 25 percentage of the calculated reference value. The resistance however is affected by the resistance in the cables from the motor to the measurement device. With the cable resistance included in the calculations, the estimate still often exceeds double the value of the reference value.

Magnetic bearings are increasingly being used in a wide variety of applications in the industry such as compressors, turbines, motors, generators etc. Also, there are different types available depending upon their construction. The research presented here investigates a high temperature permanent magnet biased magnetic bearing system which is jointly being researched by National Aeronautics and Space Administration (NASA) and Electron Energy Corporation (EEC). The purpose of this research was to develop a permanent magnet biased magnetic bearing system using high temperature (HT) permanent magnets (PM) developed by EEC. This system was designed for high performance, high temperature (1000F) and high speed applications. The entire system consisted of two radial bearings, two catcher bearings, one axial thrust bearing and a motor. The central rotor shaft is powered by a high temperature permanent magnet motor to be able to run at the designed conditions of 20,000 rpm. This thesis documents the design of a feedback control law that stabilizes this HTPM biased AMB levitated system and summarizes efforts to build a test rig for the HT tests of the machine. A decentralized PD control law is used to achieve successful levitation. An existing PD analog controller with single input single output (SISO) control law for each axis (previously used for a flywheel test rig) is used as a feedback controller for this HTPM magnetic bearing system. Modeling and simulation of the resulting closed loop system is done in Matlab to test for stability and an iterative approach leads to optimum values of proportional and derivative gain pairs. The notch filter locations are also determined through this closed loop iterative simulation.

The design, analysis, and control of Disc-type Linear Permanent Magnet Synchronous Machines are presented in this dissertation. The machine is designed in order to have the features of high power density, high efficiency, direct drive without extra transmission device, simple mechanical structure, and wide operating speed range for the electric vehicle applications. The Feasible Triangle Technique for permanent magnet synchronous machine design is employed to increase torque density and reduce torque ripple. Magnetic theory and the finite element method are involved to establish machine mathematical model to simulate and analyze the proposed machine. The coupling field between rotor and stator can be analyzed from flux distribution by using three-dimensional finite element method. The numerical simulation and experimental results are used to verify the machine model and the operational characteristics of machine. The dissertation provides the procedures for design, analysis, and control of the proposed machine.

The objective of this thesis is to provide the modeling procedure for a tubular permanent magnet generator with Halbach array. The cylindrical-coordinated magnetic flux distributions generated by the stator winding currents and permanent magnets can be realized by deriving the magnetic vector potential in Bessel form from the Maxwell's equations. Then, the functional expressions of inductance matrix and magnetic flux linkage can be obtained. The detailed mathematic model of the proposed system combined with the actual operational properties can be further established and implemented by using the Matlab/Simulink software. The applicability of such mathematic model is also confirmed with experimental results.

Thesis (M.S.) in Electrical Engineering--University of Maine, 2009. / Includes vita. Includes bibliographical references (leaf 49).

More patients are turning to the Internet as a source of health information. Nurses occupy the frontline of healthcare and must have information literacy (IL) competencies to guide themselves and their patients to the correct and appropriate health information on the Internet. Within magnet hospitals, which are exemplars for excellent nursing practice, there is an increased emphasis on evidence based practice and research, which requires IL. Exploring IL at magnet hospitals was reasonable considering such competence is promoted. Previous research indicates that nurses lack IL competencies which are necessary to inform their patients and impact healthcare but many studies rely on self-report measures. The purpose of this research study was to objectively measure the information literacy competencies of registered nurses at magnet hospitals, specifically their competencies in accessing and evaluating electronic health information, self-perception of information literacy, reliance on browsing the Internet for health information (versus libraries), and the relationship among these competencies. A convenient sample of 120 registered nurses, at four magnet hospitals, all components of a single healthcare organization, completed the Research Readiness Self-Assessment—Nurse (RRSA-Nurse), an interactive online instrument and a demographic data form. Data were analyzed using descriptive, correlation, and regression statistical methods. Nurses employed at magnet hospitals had a high ability to access and evaluate health information and high overall IL. Their self-perception in their abilities to access and evaluate health information was high and a majority did not rely on browsing the Internet for health information. Seven variables were significantly correlated to overall information literacy including role, graduate prepared nursing education, ability to access health information, ability to evaluate health information, library and research experience, contact with library staff, and library use. Nurses who were not reliant on browsing the Internet for health information and those with a graduate prepared nursing education had higher information literacy. Further research is necessary to explore qualities within magnet hospitals that contribute to the promotion of information literacy competencies in nurses. Understanding these qualities may assist with the development of interventions to increase information literacy among practicing nurses. / text

The Magnet Program for California public schools was established with the purpose of allowing students to have some choice in how they are educated. Each magnet school has a specific curriculum emphasis. This study focuses on those classified as Art Magnet Schools. With the advent of such legislation as the No Child Left Behind Act, schools have placed an increased emphasis on Math, Science, and Language Arts. This emphasis has been pushed along in part, by an increase in high-stakes testing that is taking place in all public schools. This has caused a shaky ground for Arts Magnet Schools in California to stand on. Some schools are finding that their emphasis in Arts is now in jeopardy. This study shows that although the perception of the majority of teachers is that things are worse currently than in the past, they are optimistic as to what will occur in the future.

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