Browsing Department of Aeronautics and Astronautics by Title
Now showing items 376-395 of 503
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Radio science measurements of atmospheric refractivity with Mars Global Surveyor
(American Geophysical Union, 2006-05-20)Radio occultation experiments with Mars Global Surveyor measure the refractive index of the Martian atmosphere from the surface to ~250 km in geopotential height. Refractivity is proportional to neutral density at low ... -
Radiometer Calibration Using Colocated GPS Radio Occultation Measurements
(Institute of Electrical and Electronics Engineers, 2014-10)We present a new high-fidelity method of calibrating a cross-track scanning microwave radiometer using Global Positioning System (GPS) radio occultation (GPSRO) measurements. The radiometer and GPSRO receiver periodically ... -
Reaching Consensus with Imprecise Probabilities over a Network
(2008-12-20)This paper discusses the problem of a distributed network of agents attempting to agree on an imprecise probability over a network. Unique from other related work however, the agents must reach agreement while accounting ... -
Recommendations (Phase I) DOT/CAB/MIT air freight data study
(Cambridge, Mass : Massachusetts Institute of Technology Department of Aeronautics and Astronautics Flight Transportation Laboratory, [1971], 1971)Introduction: On January 15, 1971 the Department of Transportation and the Civil Aeronautics Board announced a joint research project in conjunction with the Department of Transportation's contractor, the Massachusetts ... -
A recommended course of action for upgrading Garduda Operations Control Systems
([Cambridge, Mass. : Massachusetts Institute of Technology, Flight Transportation Laboratory, 1995], 1995)Introduction: The purpose of this document is to construct a recommended course of action in the next year for Garuda Operations Control in its efforts to upgrade its information systems technology. The process of installing ... -
Reduced-order aerodynamic models for aeroelastic control of turbomachines
(Aerospace Computational Design Laboratory, Dept. of Aeronautics & Astronautics, Massachusetts Institute of Technology, 2000-02)Aeroelasticity is a critical consideration in the design of gas turbine engines, both for stability and forced response. Current aeroelastic models cannot provide high-fidelity aerodynamics in a form suitable for design ... -
Regionalism in international air transportation--cooperation and competition : papers from an international conference organized by the Massachusetts Institute of Technology, held at the Amman Chamber of Commerce, Amman, Jordan, April 19-21, 1983, under the auspices of Alia, the Royal Jordanian Airline.
([Cambridge, Mass. : Massachusetts Institute of Technology, Flight Transportation Laboratory], c19834, c19834)Preface: Alia: The Royal Jordanian Airline is very pleased to present this collectiont of papers originally presented at the international conference entitled, "Regionalism in International Air Transportation: Cooperation ... -
Reservations forecasting in airline yield management
(Cambridge, MA : Flight Transportation Laboratory, Massachusetts Institute of Technology, [1987], 1987)This report shows the application of Regression Analysis in reservations forecasting in airline yield management. The first three chapters highlight the need for yield management and the automation of seat inventory control. ... -
Response of geostationary communications satellite solid-state power amplifiers to high-energy electron fluence
(AGU Space Weather, 2015-05-25)The key components in communications satellite payloads are the high-power amplifiers that amplify the received signal so that it can be accurately transmitted to the intended end user. In this study, we examine 26 amplifier ... -
Response of geostationary communications satellite solid-state power amplifiers to high-energy electron fluence.
(American Geophysical Union, 2015-05)The key components in communications satellite payloads are the high-power amplifiers that amplify the received signal so that it can be accurately transmitted to the intended end user. In this study, we examine 26 amplifier ... -
Revenue impacts of airline yield management
([Cambridge, Mass. : Massachusetts Institute of Technology, Dept. of Aeronautics & Astronautics, Flight Transportation Laboratory, 1992], 1992)In the highly competitive airline industry today, Yield or Revenue Management is extremely important to the survival of any carrier. Since fares are generally matched by all carriers to be competitive, the ability of an ... -
Review and evaluation of national airspace system models
(Cambridge, MA : Flight Transportation Laboratory, Dept. of Aeronautics and Astronautics, Massachusetts Institute of Technology ; 1979, 1979)Abstract from Technical Report Documentation Page: This report is intended to serve as a guide to the availability and capability of state-of-the-art analytical and simulation models of the National Airspace System (NAS). ... -
A review of extended-range operations by transport aircraft
(Cambridge, Mass. : Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, Flight Transportation Laboratory, [1987], 1987)Introduction: The safety of enroute operations of aircraft engaged in public transport has been a continuous concern since the early days of air transportation. There are a variety of inflight emergency situations which ... -
Role of flow alignment and inlet blockage on vaned diffuser performance
(Cambridge, Mass. : Gas Turbine Laboratory, Massachusetts Institute of Technology, 1997, 1997)A computational investigation of the effects of inlet conditions on straight-channel diffuser performance is undertaken. The steady, three-dimensional, Navier-Stokes solver used for the investigation is found to adequately ... -
The Role of Human-Automation Consensus in Multiple Unmanned Vehicle Scheduling
(The Role of Human-Automation Consensus in Multiple Unmanned Vehicle Scheduling, 2010)Objective: This study examined the impact of increasing automation replanning rates on operator performance and workload when supervising a decentralized network of heterogeneous unmanned vehicles. Background: Futuristic ... -
Rotor wake behavior in a transonic compressor stage and its effect on the loading and performance of the stator
(Cambridge, Mass. : Gas Turbine & Plasma Dynamics Laboratory, Massachusetts Institute of Technology, [1980], 1980)The structure and behavior of wakes from a transonic compressor rotor and their effects on the loading and performance of the downstream stator have been studied experimentally. The rotor is 2 feet in diameter with a tip ... -
Rotor wake transport in turbomachine stators
(Cambridge, Mass. : Gas Turbine Laboratory, Massachusetts Institute of Technology, [1971], 1971)The mechanism of rotor wake interaction with stators has been examined experimentally by using helium, injected into the rotor wakes, as a tracer for the wake fluid. Time averaged helium Drofiles downstream of the stator, ... -
Route network improvement in air transportation schedule planning
(Cambridge, Mass. : The Laboratory, 1972, 1972)One of the routing and scheduling problems faced by an airline is to configure a route network. It seeks to answer the following two questions: First, should scheduled service be provided for a city pair market? Second, ... -
Routing problem with service choices
(Cambridge, Mass. : MIT, Dept. of Aeronautics & Astronautics, Flight Transportation Laboratory, 1986, 1986)This thesis finds solutions to the routing problem with service choices which is formulated as a capacitated minimum cost flow circulation problem with GUB constraints. The routing problem with service choices is solved ... -
Routings in a schedule space map : an interactive graphics-based implementation
([Cambridge, Mass. : MIT, Dept. of Aeronautics & Astronautics, Flight Transportation Laboratory, 1987], 1987)Methods used for scheduling aircraft itineraries to desired maintenance bases and similar methods for specifying delivery routings from any number of sources to any number of required locations have been developed. The ...
