Free-flight model investigation of a vertical-attitude VTOL fighter

Tests were made in the Langley full-scale tunnel and included a study of the stability and control characteristics of delta- and swept-wing configurations from hovering through the transition to normal forward flight. Static force tests were also conducted to aid in the analysis of the flight tests. With conventional artificial rate stabilization, very smooth transitions could be made consistently with relatively little difficulty. Because of the lower apparent damping and a tendency to diverge in yaw, however, the swept-wing configuration was considered to be much more difficult to fly than the delta-wing configuration. With rate dampers off, both configurations were very difficult to control and the control power needed for satisfactory flights was substantially higher than with the rate dampers operating

Cease and Desist: Finding an Equitable Solution in Trademark Disputes Between High Schools and Colleges

In 2010, Florida State University told Southeast High School in Bradenton, Florida that they could no longer use the “Seminoles” nickname and logos that the schools have both been using for over fifty years. Unlike many trademark disputes between collegiate institutions and high schools though, Southeast High School refused to “cease and desist” claiming that they were not infringing on Florida State’s trademarks. Eventually, the case settled before litigation, but the University’s assertion of trademark rights against a high school in the same state highlights a growing trend of aggressive trademark protection by collegiate institutions. This Note discusses the development of trademark law with relation to universities, examines the rise of the collegiate merchandising right, and analyzes trademark disputes between high schools and colleges and how a court would likely rule on such a dispute

Full-scale wind tunnel-investigation of the Advanced Technology Light Twin-Engine airplane (ATLIT)

An investigation was conducted to evaluate the aerodynamic performance, stability, and control characteristics of the Advanced Technology Light Twin Engine airplane (ATLIT). Data were measured over an angle of attack range from -4 deg to 20 deg for various angles of sideslip between -5 deg and 15 deg at Reynolds numbers of 0.0000023 and 0.0000035 for various settings of power and flap deflection. Measurements were also made by means of special thrust torque balances to determine the installed propeller characteristics. Part of the investigation was devoted to drag cleanup of the basic airplane and to the evaluation of the effect of winglets on drag and stability

Effects of wing-leading-edge modifications on a full-scale, low-wing general aviation airplane: Wind-tunnel investigation of high-angle-of-attack aerodynamic characteristics

Wing-leading-edge modifications included leading-edge droop and slat configurations having full-span, partial-span, or segmented arrangements. Other devices included wing-chord extensions, fences, and leading-edge stall strips. Good correlation was apparent between the results of wind-tunnel data and the results of flight tests, on the basis of autorotational stability criterion, for a wide range of wing-leading-edge modifications

Private Health Insurance Provisions of H.R. 3962

[Excerpt] This report summarizes key provisions affecting private health insurance, including provisions to raise revenues, in Division A of H.R. 3962, the Affordable Health Care for America Act, as introduced in the House of Representatives on October 29, 2009. H.R. 3962 is based on H.R. 3200, America’s Affordable Health Choices Act of 2009, which was originally introduced on July 14, 2009, and was reported separately on October 14, 2009, by three House Committees— Education and Labor, Energy and Commerce, and Ways and Means. Division A of H.R. 3962 focuses on reducing the number of uninsured, restructuring the private health insurance market, setting minimum standards for health benefits, and providing financial assistance to certain individuals and, in some cases, small employers. In general, H.R. 3962 would require individuals to maintain health insurance and employers to either provide insurance or pay a payroll assessment, with some exceptions. Several insurance market reforms would be made, such as modified community rating and guaranteed issue and renewal. Both the individual and employer mandates would be linked to acceptable health insurance coverage, which would meet required minimum standards and incorporate the market reforms included in the bill. Acceptable coverage would include (1) coverage under a qualified health benefits plan (QHBP), which could be offered either through the newly created Health Insurance Exchange (the Exchange) or outside the Exchange through new employer plans; (2) grandfathered employment based plans; (3) grandfathered nongroup plans; and (4) other coverage, such as Medicare and Medicaid. The Exchange would offer private plans alongside a public option. Based on income, certain individuals could qualify for subsidies toward their premium costs and cost-sharing (deductibles and copayments); these subsidies would be available only through the Exchange. In the individual market (the nongroup market), a plan could be grandfathered indefinitely, but only if no changes were made to the terms and conditions of that plan, including benefits and cost-sharing, and premiums were only increased as allowed by statute. Most of these provisions would be effective beginning in 2013. The Exchange would not be an insurer; it would provide eligible individuals and small businesses with access to insurers’ plans in a comparable way. The Exchange would consist of a selection of private plans as well as a public option. Individuals wanting to purchase the public option or a private health insurance not through an employer or a grandfathered nongroup plan could only obtain such coverage through the Exchange. They would only be eligible to enroll in an Exchange plan if they were not enrolled in Medicare, Medicaid, and acceptable employer coverage as a full-time employee. The public option would be established by the Secretary of Health and Human Services (HHS), would offer three different cost-sharing options, and would vary premiums geographically. The Secretary would negotiate payment rates for medical providers, and items and services. The bill would also require that the Health Choices Commissioner to establish a Consumer Operated and Oriented Plan (CO-OP) program under which the Commissioner would make grants and loans for the establishment of not-for-profit, member-run health insurance cooperatives. These co-operatives would provide insurance through the Exchange. Only within the Exchange, credits would be available to limit the amount of money certain individuals would pay for premiums and for cost-sharing (deductibles and copayments). (Although Medicaid is beyond the scope of this report, H.R. 3962 would extend Medicaid coverage for most individuals under 150% of poverty; individuals would be ineligible for Exchange coverage if they were eligible for Medicaid.

A Scientist's Guide to Achieving Broader Impacts through K-12 STEM Collaboration.

The National Science Foundation and other funding agencies are increasingly requiring broader impacts in grant applications to encourage US scientists to contribute to science education and society. Concurrently, national science education standards are using more inquiry-based learning (IBL) to increase students' capacity for abstract, conceptual thinking applicable to real-world problems. Scientists are particularly well suited to engage in broader impacts via science inquiry outreach, because scientific research is inherently an inquiry-based process. We provide a practical guide to help scientists overcome obstacles that inhibit their engagement in K-12 IBL outreach and to attain the accrued benefits. Strategies to overcome these challenges include scaling outreach projects to the time available, building collaborations in which scientists' research overlaps with curriculum, employing backward planning to target specific learning objectives, encouraging scientists to share their passion, as well as their expertise with students, and transforming institutional incentives to support scientists engaging in educational outreach

Winter Wheat Response to Weed Control and Residual Herbicides

Italian ryegrass has become one of the most common and troublesome weeds of wheat production in the Southern United States. There are multiple reports in this region of Italian ryegrass herbicide resistance to acetyl-CoA carboxylase (ACCase), acetolactate synthase (ALS), and glyphosate herbicides. One commonality for Italian ryegrass resistance in this area is that most of these mechanisms of action for these herbicides are all postemergence (POST) applied. In order to have profitable soft red winter wheat production, applications of preemergence (PRE) herbicides with residual control of Italian ryegrass and other winter weed species would benefit growers. There are a very limited number of herbicides that can be applied at the time of wheat planting, primarily only when pyroxasulfone is registered for this timing. Research was conducted to establish weed control information when herbicides were applied to soft red winter wheat PRE, at wheat emergence (AE), or POST at Feekes stages 1.0–1.9, depending on herbicide label recommendations. Injury from any pyroxasulfone PRE treatments up to 120 g a.i. ha−1 was transient and did not affect wheat yield for any experiment. Italian ryegrass control was variable depending on location and year. Susceptible and diclofop-resistant Italian ryegrass control was 86% or greater with pyroxasulfone at 60 g a.i. ha−1 and greater with applied PRE. Italian ryegrass control was variable ranging from 27 to 49% with pendimethalin ME-applied PRE, diclofop at Feekes sage 1.0, and pinoxaden applied at Feekes stage 1.9

Methodology for the comparative assessment of the Satellite Power System (SPS) and alternative technologies

The energy systems concerned are the satellite power system, several coal technologies, geothermal energy, fission, fusion, terrestrial solar systems, and ocean thermal energy conversion. Guidelines are suggested for the characterization of these systems, side-by-side analysis, alternative futures analysis, and integration and aggregation of data. A description of the methods for assessing the technical, economic, environmental, societal, and institutional issues surrounding the development of the selected energy technologies is presented

A Study of the Relationship of Health Knowledge and Health Practices of the Tenth, Eleventh, and Twelth Grade Students of Cooper High School, Delta County, Texas during the Academic Year of 1966-1967

The following purposes were proposed in undertaking the study: 1. to determine the health knowledge of the students selected for the study, as indicated by a standardized test; 2. to determine the health practices of the students selected for the study, as indicated by a standardized inventory; and 3. to determine if there is a relation between the health knowledge and the health practices of the students selected for the study

Wind-tunnel investigation to determine the low speed yawing stability derivatives of a twin jet fighter model at high angles of attack

An investigation was conducted to determine the low-speed yawing stability derivatives of a twin-jet fighter airplane model at high angles of attack. Tests were performed in a low-speed tunnel utilizing variable-curvature walls to simulate pure yawing motion. The results of the study showed that at angles of attack below the stall the yawing derivatives were essentially independent of the yawing velocity and sideslip angle. However, at angles of attack above the stall some nonlinear variations were present and the derivatives were strongly dependent upon sideslip angle. The results also showed that the rolling moment due to yawing was primarily due to the wing-fuselage combination, and that at angles of attack below the stall both the vertical and horizontal tails produced significant contributions to the damping in yaw. Additionally, the tests showed that the use of the forced-oscillation data to represent the yawing stability derivatives is questionable, at high angles of attack, due to large effects arising from the acceleration in sideslip derivatives