Browsing Department of Aeronautics and Astronautics by Title
Now showing items 264-283 of 503
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Laser Beacon Tracking for High-Accuracy Attitude Determination
(29th Annual AIAA/USU Conference on Small Satellites, 2015-08)CubeSat pointing capabilities have greatly improved in the past few years, paving the way for more sophisticated science and technology demonstration missions. Advances in attitude determination have led to the development ... -
Laser-Guide-Star Satellite for Ground-Based Adaptive Optics Imaging of Geosynchronous Satellites
(Journal of Spacecraft & Rockets, 2017-05)In this study, the feasibility and utility of using a maneuverable nanosatellite laser guide star from a geostationary equatorial orbit have been assessed to enable ground-based, adaptive optics imaging of geosynchronous ... -
Learning Sparse Gaussian Graphical Model with l0-regularization
(2014-08-22)For the problem of learning sparse Gaussian graphical models, it is desirable to obtain both sparse structures as well as good parameter estimates. Classical techniques, such as optimizing the l1-regularized maximum ... -
Leg-based heuristic methods to network seat inventory control
([Cambridge, MA : Massachusetts Institute of Technology], Flight Transportation Laboratory, c1994, c1994)Driving the development of increasingly sophisticated methods of seat inventory control are the complex fare and route structures evident in airline operations today. Most control methods are currently based on an individual ... -
Lifting-line theory for subsonic axial compressor rotors
(Cambridge, Mass. : Gas Turbine Laboratory , Massachusetts Institute of Technology, [1972], 1972)The three-dimensional compressible vortex theory of an axial compressor rotor or ducted fan is extended by relating blade loading to blade geometry in the lifting-line approximation. The resulting integral equation, which ... -
A light scattering investigation of droplet growth in nozzle condensation
(Cambridge, Mass., Gas Turbine Laboratory, Massachusetts Institute of Technology, 1969, 1969)An experimental and theoretical study has been made of the condensation of water vapor (with air carrier) in a supersonic nozzle in order to investigate the possible existence of condensate droplets which are substantially ... -
A linear programming solution to the gate assignment problem at airport terminals
(Cambridge, Mass. : Massachusetts Institute of Technology, Flight Transportation Laboratory, [1980], 1980)This research solves the flight-to-gate assignment problem at airports in such a way as to minimize, or at least reduce, walking distances for passengers inside terminals. Two solution methods are suggested. The first is ... -
Luminescent visualization of molecular and turbulent transport in a plane shear layer
(Cambridge, Mass. : Massachusetts Institute of Technology, Gas Turbine Laboratory, [1977], 1977)The purpose of this work is to contribute to the fundamental understanding of fluid turbulence by visualizing its detailed flow structures. Examination of these coherent structures gives information about the turbulent ... -
The M.I.T. Blowdown Compressor Facility
(Cambridge, Mass. : Gas Turbine Laboratory, Massachusetts Institute of Technology, [1972], 1972)A Blowdown Compressor Test Facility has been developed which allows aerodynamic testing of full-scale compressor stages at low cost. The rotor is brought to speed in vacuum, a diaphragm is opened, and the test gas allowed ... -
Maintenance cost studies of present aircraft subsystems
([Cambridge, Mass.] : Massachusetts Institute of Technology, Flight Transportation Laboratory, [1966], 1966)This report describes two detailed studies of actual maintenance costs for present transport aircraft. The first part describes maintenance costs for jet transport aircraft broken down into subsystem costs according to an ... -
Maintenance cost studies of rotary wing commercial transport aircraft
(Cambridge, MA : Massachusetts Institute of Technology, Dept. of Aeronautics & Astronautics, Flight Transportation Laboratory, 1974, 1974)Introduction: The vertical take-off and landing (VTOL) aircraft market has had substantial growth in the period of the last ten years when one considers the overall number of aircraft in use. The military fleet has continued ... -
Man Vehicle Systems Research Facility : functional specification of the ATC subsystem.
(Cambridge, Mass. : MIT, Department of Aeronautics & Astronautics, Flight Transportation Laboratory, [1980], 1980)The ATC subsystem will be designed to realistically simulate the present and future air traffic control environments in which the cabs will fly their experiments. -
Management processes in U.S. air traffic management modernization : a study of global navigation satellite system development
(Cambridge, Mass. : MIT, Dept. of Aeronautics & Astronautics, Flight Transportation Laboratory, [1994], 1994)This thesis investigates organization and management issues associated with the Federal Aviation Administration's (FAA) efforts to modernize the nation's Air Traffic Management (ATM) system. Focus is placed specifically ... -
Market share model for a multi-airport system
(Cambridge : Massachusetts Institute of Technology, Flight Transportation Laboratory, ©1993, ©1993)Because capacity at existing airports was limited and/or because the cost of congestion was becoming unacceptable, several large cities around the world have had to build a second or third major commercial airport to keep ... -
The marketing of international air transportation in the USA
(Cambridge, Mass. : Massachusetts Institute of Technology, Flight Transportation Laboratory, [1980], 1980)Introduction: I am very honoured to have been invited to talk to you today at such a distinguished place of learning as the Massachusetts Institute of Technology. I understand that you have already had talks from several ... -
Mars atmospheric CO2 condensation above the north and south poles as revealed by radio occultation, climate sounder, and laser ranging observations
(Journal Of Geophysical Research-Planets, 2012-07-10)We study the condensation of CO2 in Mars' atmosphere using temperature profiles retrieved from radio occultation measurements from Mars Global Surveyor (MGS) as well as the climate sounding instrument onboard the Mars ... -
Massachusetts state airport system plan forecasts.
(Cambridge, Mass. : Massachusetts Institute of Technology, Flight Transportation Laboratory, [1978], )This report is a first step toward updating the forecasts contained in the 1973 Massachusetts State System Plan. It begins with a presentation of the forecasting techniques currently available; it surveys and appraises the ... -
Massively Parallel Solver for the High-Order Galerkin Least-Squares Method
(Aerospace Computational Design Laboratory, Dept. of Aeronautics & Astronautics, Massachusetts Institute of Technology, 2009-06)A high-order Galerkin Least-Squares (GLS) finite element discretization is combined with massively parallel implicit solvers. The stabilization parameter of the GLS discretization is modified to improve the resolution ... -
Measurement of the Mass Flow and Tangential Momentum Accommodation Coefficient in Silicon Micromachined Channels
(Aerospace Computational Design Laboratory, Dept. of Aeronautics & Astronautics, Massachusetts Institute of Technology, 1997-01)An analytic and experimental investigation into gaseous flow with slight rarefaction through long microchannels is undertaken in an attempt to obtain values of the Tangential Momentum Accommodation Coefficient (TMAC) ... -
Measurements of aerodynamic damping on the MIT transonic rotor
(Cambridge, Mass. : Gas Turbine & Plasma Dynamics Laboratory, Massachusetts Institute of Technology, [1981], 1981)A method has been developed and demonstrated for the direct measurement of aerodynamic forcing and aerodynamic damping of a transonic compressor. The method is based on the inverse solution of the structural dynamic equations ...
