Browsing Department of Aeronautics and Astronautics by Title
Now showing items 456-475 of 503
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Teamwork in controlling multiple robots
(ACM/IEEE, 2012)Simultaneously controlling increasing numbers of robots requires multiple operators working together as a team. Helping operators allocate attention among different robots and determining how to construct the human-robot ... -
Telemetry Fault-Detection Algorithms: Applications for Spacecraft Monitoring and Space Environment Sensing
(2018-05-19)Algorithms have been developed that identify unusual behavior in satellite health telemetry. Telemetry from solid-state power amplifiers and amplifier thermistors from 32 geostationary Earth orbit communications satellites ... -
Temperature wake in an adverse pressure gradient
(Cambridge, Mass. : Gas Turbine Laboratory, Massachusetts Institute of Technology, [1961], 1961)A study is made of the flow pattern resulting from the presence of a temperature wake in a uniform velocity field subjected to various adverse pressure gradients. Dimensionless temperature profiles and velocity profiles ... -
Terminal area flight path generation using parallel constraint propagation
([Cambridge, Mass. : Massachusetts Institute of Technology], Flight Transportation Laboratory, [1989], 1989)A Flight Path Generator is defined as the module of an automated Air Traffic Control system which plans aircraft trajectories in the terminal area with respect to operational constraints. The flight path plans have to be ... -
Theoretical study of network design methodologies for the aerial relay system
(Cambridge : Massachusetts Institute of Technology, Flight Transportation Laboratory ; [1980], 1980)Growth of the United States air transportation system is currently facing two major barriers: energy and congestion. While the price of fuel has gone up by approximately an order of magnitude in the last 10 years, there ... -
Thin airfoils in rotational flow
(Cambridge, Mass : Massachusetts Institute of Technology, [1965], 1965)The problem of rotational or shear flow about thin airfoils has been investigated theoretically and experimentally. The theoretical approach is based on the concept of a lifting line in a bounded shear flow whose primary ... -
Threat-aware Path Planning in Uncertain Urban Environments [Attached Video]
(IEEE, 2010-10-01)This paper considers the path planning problem for an autonomous vehicle in an urban environment populated with static obstacles and moving vehicles with uncertain intents. We propose a novel threat assessment module, ... -
Three-dimensional incompressible and compressible Beltrami flow through a highly-loaded isolated rotor
(Cambridge, Mass. : Massachusetts Institute of Technology, Gas Turbine & Plasma Dynamics Laboratory, [1979], 1979)An analysis is proposed for the three-dimensional incompressible and compressible Beltrami flow through a heavily loaded isolated rotor. It is found that, in agreement with previous analyses on disturbances in swirling ... -
Three-dimensional laminar boundary layer in curved channels with acceleration
(Cambridge, Mass. : Gas Turbine Laboratory, Massachusetts Institute of Technology, [1956], 1956)A theory is developed for two families of three-dimensional laminar boundary layers; namely, for the boundary layer on the parallel plane end walls of a curved channel with logarithmic spiral side walls, and for the boundary ... -
The three-dimensional turbulent boundary layer in a free vortex diffuser
(Cambridge, Mass. : Gas Turbine Laboratory, Massachusetts Institute of Technology, [1958], 1958)Experimental velocity profiles and static pressure measurements were obtained from the flow in a free vortex diffuser. The purpose of the study was to obtain additional three dimensional boundary layer data and to compare ... -
Three-dimensional vorticity-induced flow effects in highly-loaded axial compressors
(Cambridge : Massachusetts Institute of Technology, Gas Turbine & Plasma Dynamics Laboratory, [1980], 1980)A new analytical method is proposed for the study of flow through highly-loaded turbomachine stages. The technique is used in the present study in order to: (i) analyze the three-dimensional induced effects of the viscous ... -
Time accurate internal flow solutions of the thin shear layer equations
(Cambridge, Mass. : Gas Turbine & Plasma Dynamics Laboratory, Massachusetts Institute of Technology, [1981], 1981)An implicit factored algorithm for the solution of the thin shear layer approximation of the Navier-Stokes equations is described and explicit boundary conditions are developed for internal flow problems. This scheme is ... -
Time dependent estimates of delays and delay costs at major airports
(Cambridge, Mass. : MIT, Dept. of Aeronautics & Astronautics, Flight Transportation Laboratory, 1975, 1975)Two queuing models appropriate for estimating time dependent delays and delay costs at major airports are reviewed. The models use the demand and capacity profiles at any given airport as well as the number of runways there ... -
The time dependent magnetohydrodynamic generator
(Cambridge, Mass. : Gas Turbine Laboratory , Massachusetts Institute of Technology, [1974], 1974)Introduction: Low magnetic Reynolds number magnetohydrodynamic generators as would be utilized in power plants are conceived of as steady state D.C. devices. Unsteady phenomena may exist in such generators however. ... -
Toward the definition and measurement of the mental workload of transport pilots
(Cambridge, Mass. : Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, Flight Transportation Laboratory, [1979], 1979)This report describes work performed in the first year of a continuing research project aimed at developing useful methods for measuring the workload of pilots operating aircraft in the ATC system. Good methods of measuring ... -
Tradespace Investigation of a Telescope Architecture for Next-generation Space Astronomy and Exploration
(2014-12-19)Humanity’s endeavor to further its scientific understanding of the celestial heavens has led to the creation and evolution of increasingly powerful and complex space telescopes. Space telescopes provide a view of the solar ... -
Trapped photoelectrons during spacecraft charging in sunlight
(Institute of Electrical and Electronics Engineers, 2015-09)For a dielectric spacecraft charging in sunlight, the potentials are different on the sunlit and dark sides. Differential charging of spacecraft surfaces can trap low-energy electrons by means of potential wells and barriers. ... -
Turbulent mixing in swirling flow
(Cambridge, Mass. : Massachusetts Institute of Technology, Gas Turbine & Plasma Dynamics Laboratory, [1978], 1978)The effect of swirl on the mixing of two gas streams of the same density in coaxial annular geometry has been examined. The flow is studied via a fluorescent tracer, 2-3 biacetyl. Through direct excitation, collisional ... -
TWA reservations analysis : project update -- demand distribution patterns
([Cambridge, Mass.] : Flight Transportation Laboratory, Massachusetts Institute of Technology, [1985], 1985)Background: Research into airline capacity management and yield optimization at the Flight Transportation Laboratory is being performed with the support and funding of the Cooperative Research Program. The focus of this ...
