20,267 research outputs found

    Pressure distributions obtained on a 0.04-scale and 0.02-scale model of the Space Shuttle Orbiter's forward fuselage in the Langley 20-inch Mach 6 air tunnel

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    Results from pressure distribution tests on 0.04-scale and 0.02-scale models of the forward fuselage of the Space Shuttle Orbier are presented without analysis. The tests were completed in the Langley 20-Inch Mach 6 Tunnel. The 0.04-scale model was tested at angles of attack from 0 to 35 and angles of sideslip from 0 to -4. The 0.02-scale model was tested at angles of attack from -10 to 45 and angles of sideslip from 0 to -4. The tests were conducted in support of the development of the Shuttle Entry Air Data System (SEADS). In addition to modeling the 20 SEADS pressure orifices, the wind-tunnel to models were also instrumented with orifices to match Development Flight Instrumentation (DFI) port locations currently existing on the Space Shuttle Orbiter Columbia (OV-102). This DFI simulation had provided a means for comparisons between reentry flight pressure data and wind-tunnel data

    Pressure distributions obtained on a 0.04-scale and 0.02-scale model of the Space Shuttle Orbiter's forward fuselage in the Langley continuous flow hypersonic tunnel

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    Results from pressure distribution tests on 0.04-scale and 0.02-scale models of the forward fuselage of the Space Shuttle Orbiter are presented without analysis. The tests wre completed in the Langley Continuous Flow Hypersonic Tunnel (CFHT). The 0.04-scale model was tested at angles of attack from -5 deg to 45 deg and angles of sideslip from -3 deg to 3 deg. The 0.02-scale model was tested at angles of attack from -10 deg to 45 deg and angles of sideslip from -5 deg to 5 deg. The tests were conducted in support of the development of the Shuttle Entry Air Data System (SEADS). In addition to modeling the 20 SEADS pressure orifices, the wind-tunnel models were also instrumented with orifices to match Development Flight Instrumentation (DFI) port locations currently existing on the Space Shuttle Orbiter Columbia (OV-102). This DFI simulation has provided a means for comparisons between reentry flight pressure data and wind-tunnel data

    Pressure distributions on a 0.04-scale model of the Space Shuttle Orbiter's forward fuselage in the Langley unitary plan wind tunnel

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    Pressure distribution tests on a 0.04-scale model of the forward fuselage of the Space Shuttle Orbiter are presented without analysis. The tests were completed in the Langley Unitary Plan Wind Tunnel (UPWT). The UPWT has two different test sections operating in the continuous mode. Each test section has its own Mach number range. The model was tested at angles of attack from -2.5 deg to 30 deg and angles of sideslip from -5 deg to 5 deg in both test sections. The test Reynolds number was 6.6 x 10 to the 6th power per meter. The tests were conducted in support of the development of the Shuttle Entry Air Data System (SEADS). In addition to modeling the 20 SEADS pressure orifices, the wind-tunnel model was also instrumented with orifices to match Development Flight Instrumentation (DFI) port locations currently existing on the Space Shuttle Orbiter Columbia (OV-102). This DFI simulation has provided a means for comparisons between reentry flight pressure data and wind-tunnel data

    On reaction-subdiffusion equations

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    To analyze possible generalizations of reaction-diffusion schemes for the case of subdiffusion we discuss a simple monomolecular conversion A --> B. We derive the corresponding kinetic equations for local A and B concentrations. Their form is rather unusual: The parameters of reaction influence the diffusion term in the equation for a component A, a consequence of the nonmarkovian nature of subdiffusion. The equation for a product contains a term which depends on the concentration of A at all previous times. Our discussion shows that reaction-subdiffusion equations may not resemble the corresponding reaction-diffusion ones and are not obtained by a trivial change of the diffusion operator for a subdiffusion one

    The Measurement of Cyclically Varying Temperature

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    A Content Analysis of Criminal Cases Concerning Unattended Children in Vehicles Between 1990 and 2021:Empirically-Based Suggestions for Reform

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    Leaving children unattended in vehicles is one of the leading causes of vehicle deaths not associated with a crash. Intended deaths that are purposefully caused via this phenomenon are quite rare. Rather, such fatalities are typically a result of a caregiver either forgetting a child in a vehicle or making a conscious decision to leave the child unattended without realizing the dangers attendant to that decision. Either way, the resultant harm sparks moral outrage in the media and the community. This, in turn, can prompt prosecution of caregivers under circumstances in which their actions may not align with the elements of the crimes with which they are charged. This Article synthesizes the extant literature on the phenomenon of children left unattended in vehicles (“CLUV”) by examining the dangers associated with the behavior and both the prevalence and conditions under which the phenomenon occurs. The Article then analyzes the laws that some state legislatures enacted to curb the CLUV phenomenon, focusing on criminal legal responses. By conducting an original, mixed-method content analysis of cases from across the United States, the Article presents a typology of how courts adjudicate CLUV cases that include both pediatric hyperthermia fatalities and those in which children survived CLUV incidents. Qualitative analysis reveal three overarching themes in CLUV cases, including those that involve disputes regarding the sufficiency of the evidence (often focusing on mens rea), questions of statutory construction, and challenges to the collateral consequences of convictions. Quantitative analyses demonstrate that across these three themes, the prosecution prevails in CLUV cases by a ratio of more than two to one. This appears to be due, in part, to the fact that in roughly one out of every five cases, the caregiver’s actions were attendant to either being under the influence of alcohol or other drugs at the time of the CLUV incident or participating in other criminal behaviors. Nonetheless, the cases in the research sample had a 32.6% reversal rate for sufficiency of the evidence claims— a rate quadruple that of the national reversal rate for all other crimes challenged on appeal on such grounds. This finding, in turn, suggests that prosecutors should rethink their approaches to CLUV cases. Additionally, legislatures could take steps to clarify the elements of CLUV-related offenses. Toward that end, the Article offers a suggested statute that would address the questions raised in the cases analyzed in this research. Finally, the Article concludes by offering and alternative ways to address children being harmed while unattended in vehicles using both formal and informal social controls

    The Important Role of Dermatologists in Public Education on Sunscreens

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    The Seventh Regiment New Hampshire Volunteers in the War of the Rebellion

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    Biographical sketches : p. 460-567. Complete roster of the Seventh Regiment ;: 110 p
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