Browsing Department of Aeronautics and Astronautics by Title
Now showing items 164-183 of 503
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An economic analysis of the determination of congestion tolls at commercial airports
(Cambridge, Mass. : Flight Transportation Laboratory, Dept. of Aeronautics and Astronautics, Massachusetts Institute of Technology, [1976], 1976)This report examines the problem of determining runway fees at major commercial airports when the objective is the maximization of social benefits. Unlike most of the analytical work that has been performed to date, the ... -
Economics and finance in the management of U.S. airports
(Cambridge : Massachusetts Institute of Technology, Flight Transportation Laboratory, [1980], 1980)Using actual data gathered from field surveys and an extensive literature survey, this work examines and evaluates the economic and financial performance of the U.S. airports. A detailed analysis of the economics of airport ... -
Effect of fare and travel time on the demand for domestic air transportation
(Cambridge, Mass. : Massachusetts Institute of Technology, Flight Transportation Laboratory ; [1979], 1979)Introduction: One of the axioms in the air transportation industry is that advances in technology have led to a greater amount of passenger travel by air. Improvements in airframe and engine design have increased range, ... -
Effect of Longitude-Dependent Cloud Coverage on Exoplanet Visible Wavelength Reflected-Light Phase Curves
(IOP Publishing, 2015-05-10)We use a planetary albedo model to investigate variations in visible wavelength phase curves of exoplanets. Thermal and cloud properties for these exoplanets are derived using one-dimensional radiative-convective and cloud ... -
Effect of swirl on turbulent jets in ducted streams
(Cambridge, Mass. : Massachusetts Institute of Technology, Gas Turbine Laboratory, [1968], 1968)An experimental and theoretical program of research has been carried out to determine the effect of swirl on the mixing of a turbulent jet in a ducted stream. The term swirl is used to describe a flow pattern within the ... -
The effect of tip clearance on an axial flow fan
(Cambridge, Mass. : Gas Turbine Laboratory, Massachusetts Institute of Technology, [1955], 1955)The effect of tip clearance on the performance of a single stage axial flow (6000 cfm) fan was investigated for tip clearances ranging from 0.003 in. to 0.252 in. It was found that, at the rated flow, the stagnation pressure ... -
The effect of upstream rotor vortical disturbances on the time-average performance of axial compressor stators
(Cambridge, Mass. : Gas Turbine Laboratory, Massachusetts Institute of Technology, 1997, 1997)Time-accurate Reynolds-averaged Navier-Stokes simulations have been carried out to investigate the impact of upstream rotor wakes and tip leakage vortices on the loss of a compressor stator. The objective is to (1) identify ... -
Effects of compressor endwall suction and blowing on stability enhancement
(Cambridge, Mass. : Gas Turbine Laboratory, Massachusetts Institute of Technology, [1988], 1988)An experimental investigation was carried out to examine the effects on stall margin of flow injection into, and removal out of, the endwall region of an axial compressor blade row. A main goal was to identify the mechanism ... -
Effects of inlet conditions on centrifugal diffuser performance
(Cambridge, Mass. : Gas Turbine Laboratory, Massachusetts Institute of Technology, [1997], 1997)This report examines the influence of inlet flow conditions, including Mach number, flow angle, blockage, and axial flow non-uniformity, on the performance and operating range of a straight channel centrifugal compressor ... -
The effects of manufacturing variability on turbine vane performance
(Aerospace Computational Design Laboratory, Dept. of Aeronautics & Astronautics, Massachusetts Institute of Technology, 2008-06)Gas turbine vanes have airfoil shapes optimized to deliver specific flow conditions to turbine rotors. The limitations of the manufacturing process with regards to accuracy and precision mean that no vane will exactly match ... -
Effects of non-axisymmetric tip clearance on axial compressor performance and stability
(Cambridge, Mass. : Gas Turbine Laboratory, Massachusetts Institute of Technology, [1997], 1997)The effects of circumferentially non-uniform tip clearance on axial compressor performance and stability have been investigated experimentally and analytically. A theoretical model for compressor behavior with non-axisymmetric ... -
Effects of Single versus Multiple Warnings on Driver Performance
(2007)Objective: To explore how a single master alarm system affects drivers’ responses when compared to multiple, distinct warnings. Background: Advanced driver warning systems are intended to improve safety, yet inappropriate ... -
Efficient distributed information fusion using value of information based censoring
(2012-07-27)In many distributed sensing applications, not all agents have valuable information at all times. Therefore, requiring all agents to communicate at all times can be resource intensive. In this work, the notion of Value ... -
Efficient Distributed Sensing Using Adaptive Censoring-Based Inference
(2013-03-15)In many distributed sensing applications it is likely that only a few agents will have valuable information at any given time. Since wireless communication between agents is resource-intensive, it is important to ensure ... -
End-to-end simulation of high-contrast imaging systems: methods and results for the PICTURE mission family
(SPIE, 2015-09)We describe a set of numerical approaches to modeling the performance of spaceflight high-contrast imaging payloads. Mission design for high-contrast imaging requires numerical wavefront error propagation to ensure accurate ... -
Energy and U.S. airline traffic
(Cambridge, Mass. : Massachusetts Institute of Technology, Flight Transportation Laboratory, [1980], 1980)Introduction: THE U.S. AIRLINE INDUSTRY HAS BEEN EXPOSED TO A PERIOD OF MAJOR SURGERY DURING THE PAST THREE YEARS AND HAS SURVIVED. VIEWED FROM THE STANDPOINT OF THE CAB, IT WAS NATURAL THAT THE GREAT IMPROVEMENT IN ... -
Equivalence between Approximate Dynamic Inversion and Proportion-Integral Control
(2008-09-29)Approximate Dynamic Inversion (ADI) has been established as a method to control minimum-phase, nonaffine-in-control systems. Previous results have shown that for single-input nonaffine-in-control systems, every ADI controller ... -
Estimates of capacity and delay for proposed runway systems : Schiphol Airport, Amsterdam, final report
(Cambridge, Mass. : Massachusetts Institute of Technology, Flight Transportation Laboratory, [1976], 1976)1. The addition of the fifth runway at Schiphol increases the airport hourly capacity for landings by almost 100%, and the capacity for takeoffs by more than 40%. 2. The current runway system will provide good levels of ... -
Estimation of the economic relationship of an airport to the regional economy : a critical analysis
(Cambridge, Mass. : Massachusetts Institute of Technology, Flight Transportation Laboratory, [1981], 1981)In the past decade many major U.S. airports have encountered extensive opposition to plans for future growth and expansion from environmentalists and community groups who cite the noise and air pollution created and the ... -
Evaluation of forecasting techniques for short-term demand of air transportation
([Cambridge, Mass. : Massachusetts Institute of Technology, Dept. of Aeronautics & Astronautics], Flight Transportation Laboratory, [1995], 1995)Forecasting is arguably the most critical component of airline management. Essentially, airlines forecast demand to plan the supply of services to respond to that demand. Forecasts of short-term demand facilitate tactical ...
