Reinforced composite flywheels and shafts

The maximum safe operating speed or flywheels and shafts made of low tensile strength material is often determined by the speed at which radial tensile stress exceeds a radial tensile stress limit for the material. Circumferentially wound fiber composite material, for example, has a relatively low tensile strength along the radial direction perpendicular to the fibers. To increase the maximum safe operating speed, it is therefore desirable to form a fiber composite flywheel or shaft with radial compressive prestress. Such a prestressed flywheel or shaft has an outer annulus and an inner cylinder disposed in the outer annulus, and an annular layer of solidified bonding agent within an annular region between the outer annulus and the inner cylinder, wherein the outer annulus and the inner cylinder include substantial radial prestress induced by the bonding agent. The rim portion of a flywheel, for example, is formed from an outer ring (the annulus) and an inner ring (the cylinder, which is hollow in this case). Large, thick flywheels preferably have multiple cylindrical sections joined by such layers of bonding agent, and a plurality of the cylindrical sections each including an outer layer of relatively stiff fiber-composite material, and an inner layer of relatively compliant fiber-composite material within an integral matrix material.Board of Regents, University of Texas Syste

One Team, One Mission: Faculty and Department Development

This presentation argues that effective faculty development occurs when faculty are embedded in a healthy, team-oriented department, where individuals feel safe and welcome. There is a body of evidence that the primary role of a leader is the development and maintenance of these team-oriented conditions. Dan Coyle in The Culture Code makes the argument that good leaders prioritize building a sense of belonging on their teams, and they do so by structuring and leading the department in ways that facilitate unit social identity, and which is congruent with developing a sense of self-identity that is consistent with best practices of faculty life. When successful the leader is then in a strong position to help the department establish a sense of purpose and mission that facilitates proficiency and creativity on the part of each individual in the group. Leadership in this environment is seen as an interactive process rather than a thing to be had, and leaders who lead well are seen as fulfilling certain roles for the group: as an in-group prototype of group values and behaviors, as an in-group culture champion, as an entrepreneur of the group\u27s social identity, and is an embedder of identity to new members of the group (Haslam, et al, 2011). This presentation will provide the theoretical background for these leadership processes, and provide examples of kinesiology leaders who have been, and are, successful in creating environments where faculty development is most likely to occur

Raising Academic Achievement: A Study of 20 Successful Programs

Published by and copyright by American Youth Policy ForumSchool accountability, tougher standards and\ud higher test scores have been buzzwords in recent\ud political campaigns and school superintendents???\ud speeches. Opinion polls show that the quality of\ud education is a major concern among the public, and\ud measures have been proposed at all levels of\ud government to improve the academic achievement\ud of our youth. The federal government has\ud established national education goals; states are\ud developing report cards to provide public\ud accountability of their schools; and localities are\ud trying to revamp their educational systems to\ud improve academic outcomes. The American Youth\ud Policy Forum (AYPF) has been at the forefront of\ud efforts to identify effective youth initiatives in the\ud areas of academic achievement, preparation for\ud careers, youth development, and service-learning.\ud With this new publication, AYPF offers 20 models\ud of excellence in raising academic achievement to\ud guide policymakers, educators and youth\ud development practitioners in their work toward a\ud better future for American youth.\ud These 20 examples of excellence were drawn from\ud the 95 youth initiatives included in AYPF???s two\ud previous publications on successful youth programs:\ud Some Things DO Make a Difference for Youth\ud (1997) and MORE Things That DO Make a\ud Difference for Youth (1999). Almost all the\ud programs included in this list serve youth who are\ud considered at high risk for academic failure,\ud including youth from low-income and minority\ud backgrounds, immigrants with low English\ud proficiency, and youth living in public housing\ud projects and in inner-city areas. Despite these\ud challenges, evaluations conducted on these programs\ud show evidence of their success on multiple measures\ud of academic achievement, such as test scores, high\ud school graduation rates, and college enrollment and\ud retention.\ud This report is divided into two parts. Part One is an\ud Introduction, providing the historical context of the\ud recent concerns about academic achievement, the\ud criteria used to select these programs, and an\ud analysis of the features and strategies that the\ud programs employ to help students achieve. Part\ud Two includes the summaries of program evaluations.\ud The summaries follow an eight-section outline\ud composed of: overview, description of the\ud population served by the program, evidence of\ud effectiveness, key program components,\ud contributing factors (factors highlighted by the\ud evaluators as contributing to program success),\ud study methodology, geographic area (program\ud location) and contact information.\ud Our expectation is that this publication will\ud contribute to the knowledge base of what works to\ud improve academic achievement for young people.\ud We also hope that it persuades researchers to\ud continue to search for features that distinguish\ud successful academic programs. Finally, the evidence\ud provided in the evaluation summaries printed here\ud should inspire and encourage more schools and\ud youth programs to evaluate the results of their work.\ud Not only does such evidence appeal to funders of\ud youth initiatives, it ensures that programs are, in\ud fact, making a difference for youth

Extending an Electronic Medical Record Geographic Information System

Abstract This paper extends an earlier developed system that integrates Geographic Information Systems (GIS) and Electronic Medical Records (EMR). A GIS is integrate

3D Simulation: Microgravity Environments and Applications

Most, if not all, 3-D and Virtual Reality (VR) software programs are designed for one-G gravity applications. Space environments simulations require gravity effects of one one-thousandth to one one-million of that of the Earth's surface (10(exp -3) - 10(exp -6) G), thus one must be able to generate simulations that replicate those microgravity effects upon simulated astronauts. Unfortunately, the software programs utilized by the National Aeronautical and Space Administration does not have the ability to readily neutralize the one-G gravity effect. This pre-programmed situation causes the engineer or analysis difficulty during micro-gravity simulations. Therefore, microgravity simulations require special techniques or additional code in order to apply the power of 3D graphic simulation to space related applications. This paper discusses the problem and possible solutions to allow microgravity 3-D/VR simulations to be completed successfully without program code modifications

Summary of Alaskan earthquakes, July, August, September 1977

UAG R-248; Alaskan Earthquake Analysis Center Seismological Bulletin No. 1.Various aspects of this work are supported in part by NOAA Contract 03-5-022-55, Tasks 2 and 12, by USGS Contract 14-08-001-16688, by ERDA Contract EY 76-S-06 2229, Task 6, and by State of Alaska funds appropriated to the Geophysical Institute, University of Alaska.Introduction to Seismological Bulletin #1 -- Some general comments on Alaskan seismicity -- Items of special interest occurring during reporting period -- Table of seismographic stations utilized -- Map showing locations of seismographic stations -- Modified Mercalli scale, 1956 version -- Map showing seismicity of the Alaska Peninsula and Kodiak Island during the three-month period -- Picture showing the Ukinrek Maar eruption of April 6, 1977 -- Map of Alaskan seismicity, July, 1977 -- Tabulation of July, 1977, earthquakes -- Map of Alaskan seismicity, August, 1977 -- Tabulation of August, 1977, earthquakes -- Map of Alaskan seismicity, September, 1977 -- Tabulation of September, 1977, earthquakes

Methods for making reinforced composite flywheels and shafts

The maximum safe operating speed of flywheels and shafts made of low tensile strength material is often determined by the speed at which radial tensile stress exceeds a radial tensile stress limit for the material. Circumferentially wound fiber composite material, for example, has a relatively low tensile strength along the radial direction perpendicular to the fibers. To increase the maximum safe operating speed, it is therefore desirable to form a fiber composite flywheel or shaft with radial compressive prestress. Such a prestressed flywheel or shaft is made by placing a cylinder within a fiber composite annulus, injecting a bonding agent under pressure into the interface between the annulus and the cylinder, and maintaining the bonding agent under pressure while the bonding agent solidifies. Preferably, the cylinder and annulus are aligned in a concentric relationship during solidification by a chamber into which the cylinder and annulus are placed. The rim portion of a flywheel, for example, is formed from an outer ring (the annulus) and an inner ring (the cylinder, which is hollow in this case). The chamber is defined by a pair of plates which abut opposite faces of the rings, and by two concentric cylinders which limit the radial movement of the rings as the rings expand or contract, respectively, in response to the pressure of the bonding agent. The bonding agent is preferably a mixture of epoxy resin and chopped fiber or other randomly oriented epoxy reinforcing material.Board of Regents, University of Texas Syste

Immobilized Platinum Hydride Species as Catalysts for Olefin Isomerizations and Enyne Cycloisomerizations

Platinum hydride species catalyze a number of interesting organic reactions. However, their reactions typically involve the use of high loadings of noble metal and are difficult to recycle, making them somewhat unsustainable. We have synthesized surface-immobilized Pt–H species via oxidative addition of surface OH groups to Pt(P$^t$Bu$_3$)$_2$ (1), a rarely used immobilization technique in surface organometallic chemistry. The hydride species thus made were characterized by infrared, magic-angle spinning nuclear magnetic resonance, and X-ray absorption spectroscopies and catalyzed both olefin isomerization and cycloisomerization of a 1,6 enyne (5) with a high selectivity and low Pt loading