Browsing Department of Aeronautics and Astronautics by Title
Now showing items 56-75 of 503
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An assessment of lighter than air technology : the report of the Multi-agency Workshop on Lighter Than Air : Monterey California, September 9-13, 1974
(Cambridge, Mass. : Flight Transportation Laboratory, Massachusetts Institute of Technology, 1974, 1974)Summary: This document is a draft report of the Workshops' output - The Working Group Reports. It is for your review and comment which should be returned to me by January 1, 1975. With those comments and criticisms in hand, ... -
Assessment of Radiometer Calibration With GPS Radio Occultation for the MiRaTA CubeSat Mission
(Institute of Electrical and Electronics Engineers, 2016-12)The microwave radiometer technology acceleration (MiRaTA) is a 3U CubeSat mission sponsored by the NASA Earth Science Technology Office. The science payload on MiRaTA consists of a triband microwave radiometer and global ... -
Assessment of the potential diversion of air passengers to high-speed rail in the northeast corridor
([Cambridge, Mass. : Massachusetts Institute of Technology, Dept. of Aeronautics & Astronautics], Flight Transportation Laboratory, [1994], 1994)The high level of intercity passenger travel in the Northeast Corridor is supported by densely populated metropolitan city-centers, the suitable distance between the urban areas, and the extent to which economic and social ... -
Assisting Interruption Recovery in Mission Control Operations
(MIT Humans and Automation Laboratory, 2007)Frequent interruptions are commonplace in modern work environments. The negative impacts of interruptions are well documented and include increased task completion and error rates in individual task activities, as ... -
Asymmetric inlet flow in axial turbomachines
(Cambridge, Mass. : Gas Turbine Laboratory, Massachusetts Institute of Technology, 1959, 1959)A modified actuator disc analysis is made which, through an improved prediction of the blade forces, attempts to give closer correspondence with experiment than the previous theory. The fluid is assumed inviscid and ... -
Asymmetric inlet flows through 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 ... -
Asymptotic analysis of numerical wave propagation in finite difference equations
(Cambridge, Mass. : Gas Turbine & Plasma Dynamics Laboratory, Massachusetts Institute of Technology, [1983], 1983)An asymptotic technique is developed for analysing the propagation and dissipation of wave-like solutions to finite difference equations. It is shown that for each fixed complex frequency there are usually several wave ... -
ATCLAB : a laboratory environment for research in advanced ATC automation conceptual design
(Cambridge, Mass. : Massachusetts Institute of Technology, Flight Transportation Laboratory, [1986], 1986)Introduction: A large number of ideas and schemes have been proposed and are constantly being suggested to enhance the Air Traffic Control system's safety, reliability, and efficiency by means of automation. The capability ... -
Atmospheric characterization of cold exoplanets using a 1.5-m coronagraphic space telescope
(EDP Sciences S.A., 2012-05)High-contrast imaging is currently the only available technique for the study of the thermodynamical and compositional properties of exoplanets in long-period orbits, comparable to the range from Venus to Jupiter. The ... -
Atmospheric characterization of cold exoplanets with a 1.5-m space coronagraph
(Amsterdam Netherlands: SPIE - The International Society for Optical Engineering, 2012)Several small space coronagraphs have been proposed to characterize cold exoplanets in reflected light. Studies have mainly focused on technical feasibility because of the huge star/planet flux ratio to achieve in the ... -
Attenuation of sound in lined circular ducts
(Cambridge : Gas Turbine Laboratory, Massachusetts Institute of Technology, [1975], 1975)In the previous report, we have used approximate expressions for the wall impedance for the discussion of sound attenuation in lined circular ducts. For instance, Eq. (2.5) has been used for the wall impedance of a circular ... -
Attenuation of sound in lined ducts
(Cambridge, Mass. : Gas Turbine Laboratory , Massachusetts Institute of Technology, [1974], 1974)Extensive computations have been carried out of the attenuation characteristics of resonator and porous type duct liners in rectangular and circular ducts. First the frequency dependence of the attenuation constant and the ... -
Audio Decision Support for Supervisory Control of Unmanned Vehicles : Literature Review
(MIT Humans and Automation Laboratory, 2006)Purpose of this literature review: To survey scholarly articles, books and other sources (dissertations, conference proceedings) relevant to the use of the audio supervisory control of unmanned vehicles. -
Auditory Decision Aiding in Supervisory Control of Multiple Unmanned Aerial Vehicles
(Human Factors: The Journal of the Human Factors and Ergonomics, 2009)This paper investigates the effectiveness of sonification, continuous auditory alert mapped to the state of a monitored task, in supporting unmanned aerial vehicle (UAV) supervisory control. Background: UAV supervisory ... -
Augmentation of Power Output of Axisymmetric Ducted Wind Turbines by Porous Trailing Edge Disks
(2014-06-30)This paper presents analytical and experimental results that demonstrated that the power output from a ducted wind turbine can be dramatically increased by the addition of a trailing edge device such as a porous disk. In ... -
Automated Speech Recognition in air traffic control
(Cambridge, Mass. : Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, Flight Transportation Laboratory, 1987, 1987)Over the past few years, the technology and performance of Automated Speech Recognition (ASR) systems has been improving steadily. This has resulted in their successful use in a number of industrial applications. Motivated ... -
Automation and Accountability in Decision Support System Interface Design
(Journal of Technology Studies, 2006)When the human element is introduced into decision support system design, entirely new layers of social and ethical issues emerge but are not always recognized as such. This paper discusses those ethical and social impact ... -
Automation Architecture for Single Operator, Multiple UAV Command and Control,
(The International Command and Control Journal, 2007)In light of the Office of the Secretary Defense’s Roadmap for unmanned aircraft systems (UASs), there is a critical need for research examining human interaction with heterogeneous unmanned vehicles. The OSD Roadmap clearly ... -
Automation of airlift scheduling for the upgraded command and control system of military airlift command
(Cambridge, Mass. : Massachusetts Institute of Technology, Flight Transportation Laboratory, [1984], 1984)This report describes a conceptual design for automation of the scheduling of airlift activities as part of the current upgrade of the MAC C2 System. It defines the airlift scheduling problem in generic terms before reviewing ... -
Aviation safety analysis
(Cambridge, Mass : Massachusetts Institute of Technology, Dept. of Aeronautics & Astronautics, Flight Transportation Laboratory, [1984], 1984)Introduction: Just as the aviation system is complex and interrelated, so is aviation safety. Aviation safety involves design of aircraft and airports, training of ground personnel and flight crew members' maintenance of ...
