Study Of Motor Performance Research Articles

Review of Controlling of Switched Reluctance Motors (SRM) Drive Techniques in Micro-grid

There has been growing interest in the switching reluctance motor in both the academic andbusiness communities. The minimal cost of construction and the fact that no rare materials are requiredare two of Micro-most grid's lauded qualities. Switched reluctance motors are more difficult tomanipulate than conventional machines. The most researched issue in the subject is how to minimisetorque ripple in the control system. The purpose of this work is to provide a review of the relevantliterature and an understanding of the specifics involved in micro grid control of switching reluctancemotors. There is a literature review on the effects of fundamental control approaches on the study ofmotor performance. Several other studies are offered for the reader to use as comparisons in thiscomparative study. Studies employing a non-linear switching reluctance motor model derived from anactual motor are the primary emphasis of the papers, which are based on the theory presented forliterature review.

Motor Performance Study, Michigan State University: Scientific, Educational and Societal Events that Influenced Its Design and Conduct

ABSTRACT The Michigan State University (MSU) Motor Performance Study (MPS) was initiated in 1967 and was known across the United States for its unique blend of teaching, service, and research. Dr. Vern Seefeldt began the study as a means to begin research with children on-campus. The instructional portion of the program ended in 1999; data collection continued until 2004. The purpose of the MPS was to examine longitudinal relationships among physical growth, biological maturity, and motor skill acquisition in youth. Four distinct eras of research contributed to the design of the MSU MPS: a) The genetics and maturation period; b) The classification period, involving identification of the motor domain and factor structures of movement skills; c) The perceptual-motor era; and d) The physical fitness era. The purpose of this manuscript is to describe how each of the four research areas specifically contributed to the design and conduct of the MSU MPS.

Methods of the Michigan State University Motor Performance Study

ABSTRACT The Michigan State University Motor Performance Study (MPS) was initiated in 1967 and lasted 32 years. Three central components existed: 1) Educational component, in which students experienced applied work with youth; 2) Instructional component, whereby enrolled youth received sport-specific skill instruction; and 3) Research component. The primary goals of the research component of the MPS were to examine: 1) the changes over time that occur in the physical growth, biological maturity, and motor skill acquisition of children and youth; 2) the processes involved in the attainment of basic and complex motor skills; and 3) the influence of changes in the learners’ environment on their rates of motor skill acquisition. Several growth and maturation, motor competence, and physical performance/fitness variables were collected, and a follow-up study examined participants’ adult physical activity, sport participation, and health outcomes. This manuscript describes methods used in the research component of the MPS and the follow-up.

Recalled Age at Menarche: A Follow-up to the Michigan State University Motor Performance Study

ABSTRACT Sexual maturation is one method by which researchers account for developmental timing during growth. In a longitudinal motor performance study (MPS), mothers reported their own recalled age at menarche and their daughters.’ Approximately twenty years later, a sample of those daughters provided their recalled age at menarche. Study purposes were to determine whether: 1) average age at menarche for this sample was similar to the extant literature; 2) daughters’ and mothers’ ages at menarche collected during the MPS differed; and 3) a retrospective assessment of age at menarche (daughters’ reports as adults) was correlated to recall data (mothers’ reports of daughters’ age). Descriptive and inferential statistics were calculated for the sample; via probit analysis, MPS females were average in maturational timing. Mothers and daughters did not differ in menarcheal age; daughters’ initial reported mean age at menarche correlated with their recalled mean age at follow up, r = 0.82 (p < .0001).

An Examination of Sport Participation Tracking and Adult Physical Activity for Participants of the Michigan State University Motor Performance Study

ABSTRACT Research tracking sport participation from youth to adulthood is relatively rare, as is research that tracks youth sport participation with regard to adult physical activity (PA) levels, especially in the United States. Aims of this study were: 1) To investigate the degree to which sport participation tracked across youth, adolescence, and early adulthood in a sample of participants from the Michigan State University Motor Performance Study (MPS), and 2) Determine if differences existed in their levels of adult PA relative to prior sport participation. In total, 256 (60.8%) former participants from the MPS completed follow-up surveys regarding routine sport participation and PA across the previous year. Sport participation tracked consistently from youth to college. Further, regardless of the level of youth sport participation, adult leisure time PA was relatively consistent among groups. Although the study did not directly test the influence of the MPS on subsequent adult outcomes, our findings suggest that participants’ past sport participation was not a good predictor of adult PA for those who were involved in a program that emphasized fundamental motor skills in youth. Further investigation of such programs can help to better inform their influence on adult PA.