65,738 research outputs found
Velocity vector control system augmented with direct lift control
A pilot-controlled stability control system that employs direct lift control (spoiler control) with elevator control to control the flight path angle of an aircraft is described. A computer on the aircraft generates an elevator control signal and a spoiler control signal, using a pilot-controlled pitch control signal and pitch rate, vertical velocity, roll angle, groundspeed, engine pressure ratio and vertical acceleration signals which are generated on the aircraft. The direct lift control by the aircraft spoilers improves the response of the aircraft flight path angle and provides short term flight path stabilization against environmental disturbances
Space shuttle high pressure auxiliary propulsion subsystem definition study Summary report
Space shuttle high pressure hydrogen oxygen auxiliary propulsion subsystem conceptual and design study summar
Ground-based facilities for evaluating vortex minimization concepts
To determine the feasibility of altering the formation and decay of aircraft trailing vortexes through aerodynamic means, the test capabilities of two wind tunnels and two towing basins were used. The facilities, common models, and measurement techniques that were employed in the evaluation of vortex minimization concepts are described
Black and White and Read All Over: Press Protection After Branzburg
In 1972, the Supreme Court handed the press an apparent resounding defeat in Branzburg v. Hayes, declaring that the Constitution provided reporters no privilege from testifying about their confidential sources. This Note uses previously unpublished materials from the Justices\u27 personal files to illustrate the behind-the-scenes deliberations as the Court shifted in ideology from the propress posture established by Justice Hugo Black in the Pentagon Papers case to the anti-privilege position established by Justice Byron White one year later in Branzburg. It also examines the curious concurring opinion of Justice Lewis Powell in Branzburg and subsequent efforts to craft a qualified reporter\u27s privilege, arguing against further weakening press protection
Selected Readings on Ethnicity, Family and Community
Selected Readings on Ethnicity, Family and Community; compiled by Mary E. Kelly, Central Missouri State University, and Thomas W. Sanchez, University of Nebraska- Lincoln
A Framework for Mouse Emulation that Uses a Minimally Invasive Tongue Palate Control Device utilizing Resistopalatography
The ability to interface fluently with a robust Human Input Device is a major challenge facing patients with severe levels of disability. This paper describes a new method of computer interaction utilizing Force Sensitive Resistor Array Technology, embedded into an Intra-Oral device (Resistopalatography), to emulate a USB Human Interface Device using standard Drivers. The system is based around the patient using their tongue to manipulate these sensors in order to give a position and force measurement; these can then be analyzed to generate the necessary metrics to control a mouse for computer input
Investigation of a high speed data handling system for use with multispectral aircraft scanners
A buffer memory data handling technique for use with multispectral aircraft scanners is presented which allows digital data generated at high data rates to be recorded on magnetic tape. A digital memory is used to temporarily store the data for subsequent recording at slower rates during the passive time of the scan line, thereby increasing the maximum data rate recording capability over real-time recording. Three possible implementations are described and the maximum data rate capability is defined in terms of the speed capability of the key hardware components. The maximum data rates can be used to define the maximum ground resolution achievable by a multispectral aircraft scanner using conventional data handling techniques
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