Institution
Vaughn College of Aeronautics and Technology
Education•New York, New York, United States•
About: Vaughn College of Aeronautics and Technology is a education organization based out in New York, New York, United States. It is known for research contribution in the topics: Gravitational microlensing & Planetary system. The organization has 727 authors who have published 708 publications receiving 14082 citations. The organization is also known as: College of Aeronautics.
Papers published on a yearly basis
Papers
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TL;DR: In this article, a simplified scheme of four chemical reactions is chosen to represent the kinetics of the hydrogen-oxygen system; m particular, this scheme includes the influence of the hydroxyl radical.
Abstract: A simplified scheme of four chemical reactions is chosen to represent the kinetics of the hydrogen-oxygen system; m particular, this scheme includes the influence of the hydroxyl radical. The diffusion flame supported by this set of reactions is assumed to form behind a (planar, two-dimensional) body of parabolic meridian profile with downstream-pointing vertex. The body initially separates the oxygen and hydrogen streams, which are assumed to have equal speeds and pressures far upstream. (The pressure is subsequently assumed to be constant everywhere.) For pressures of about one atmosphere it is found that nett reaction rates can be treated as infinitely fast, the four reactions then yield four chemical equilibrium equations whose behaviour is dominated by the largeness of the equilibrium constant for the (thermal) dissociation-recombination reaction of hydrogen. The flame-sheet model emerges as the limiting solution when the reciprocal of this large quantity is allowed to vanish. The method of matched asymptotic expansions is used to investigate the structure of the flame which results from a relaxation of this limit. The results bear a satisfactory resemblance to some experimental measurements which, although made in other gas mixtures, exemplify the behaviour of the type of diffusion flames considered.
25 citations
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01 Jan 1966TL;DR: The problem of designing the lightest framework which will equilibrate a system of given forces was first considered by A. G. M. Michell and structures designed according to his principles are called “Michell structures”.
Abstract: The problem of designing the lightest framework which will equilibrate a system of given forces was first considered by A. G. M. Michell [1]. Structures designed according to his principles are therefore called “Michell structures”.
25 citations
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21 Jun 1998TL;DR: In this article, the performance of a varactor loaded, probe-fed microstrip patch antenna with an effective impedance bandwidth of 50% is achieved centred around a frequency of 220 GHz.
Abstract: This paper presents the performance of a varactor loaded, probe-fed microstrip patch antenna An effective impedance bandwidth of 50% is achieved centred around a frequency of 220 GHz The simple transmission line model is used to predict the resonant frequency, and practical results obtained showed a good agreement between the predicted and measured values
25 citations
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Istituto Nazionale di Fisica Nucleare1, University of Salerno2, California Institute of Technology3, University of Warsaw4, Massey University5, Chungbuk National University6, University of Copenhagen7, Ohio State University8, University of Warwick9, Harvard University10, Nagoya University11, Goddard Space Flight Center12, University of Notre Dame13, University of Auckland14, Osaka University15, Kyoto Sangyo University16, Vaughn College of Aeronautics and Technology17, Victoria University of Wellington18, University of Canterbury19, Korea Astronomy and Space Science Institute20, Kyung Hee University21, University of St Andrews22, Qatar Foundation23, University of Hamburg24, Max Planck Society25, Keele University26, European Southern Observatory27, Chinese Academy of Sciences28, University of Manchester29, Pontifical Catholic University of Chile30, Sharif University of Technology31, Aarhus University32, Open University33, University of Liège34, University of Antofagasta35, Tel Aviv University36
TL;DR: In this paper, microlensing parallax observations of OGLE-2015-BLG-1212 decisively break a degeneracy between planetary and binary solutions that is somewhat ambiguous when only ground-based data are considered.
Abstract: Spitzer microlensing parallax observations of OGLE-2015-BLG-1212 decisively break a degeneracy between planetary and binary solutions that is somewhat ambiguous when only ground-based data are considered. Only eight viable models survive out of an initial set of 32 local minima in the parameter space. These models clearly indicate that the lens is a stellar binary system possibly located within the bulge of our Galaxy, ruling out the planetary alternative. We argue that several types of discrete degeneracies can be broken via such space-based parallax observations.
24 citations
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08 Jan 2001TL;DR: The effect of streamwise slots on the interaction of a normal shock wave / turbulent boundary layer has been investigated experimentally at a Mach number of 1.3 by Smith et al. as discussed by the authors.
Abstract: The effect of streamwise slots on the interaction of a normal shock wave / turbulent boundary layer has been investigated experimentally at a Mach number of 1.3. The surface pressure distribution for the controlled interaction was found to be significantly smeared, featuring a distinct plateau. This was due to a change in shock structure from a typical unseparated normal shock wave boundary layer interaction to a large bifurcated Lambda type shock pattern. Boundary layer velocity measurements downstream of the slots revealed a strong spanwise variation of boundary layer properties whereas the modified shock structure was relatively twodimensional. Oil flow visualisation indicated that in the presence of slots the boundary layer surface flow was highly three dimensional and confirmed that the effect of slots was mainly due to suction and blowing similar to that for passive control with uniform surface ventilation. Three hole probe measurements confirmed that the boundary layer was three dimensional and that the slots introduced vortical motion into the flowfield. Results indicate that when applied to an aerofoil, the control device has the potential to reduce wave drag while incurring only small viscous penalties. The introduction of streamwise vorticity may also be beneficial to delay trailing edge separation and the device is thought to be capable of postponing buffet onset. © 2001 by A N Smith.
24 citations
Authors
Showing all 732 results
Name | H-index | Papers | Citations |
---|---|---|---|
Xiang Zhang | 154 | 1733 | 117576 |
Denis J. Sullivan | 61 | 332 | 14092 |
To. Saito | 51 | 183 | 9392 |
Arthur H. Lefebvre | 41 | 123 | 4896 |
Michele Meo | 40 | 223 | 5557 |
Robin S. Langley | 40 | 263 | 5601 |
Ning Qin | 37 | 283 | 5011 |
Holger Babinsky | 33 | 242 | 4068 |
B. S. Gaudi | 31 | 64 | 2560 |
Philip J. Longhurst | 29 | 80 | 2578 |
Michael Gaster | 27 | 66 | 3998 |
Don Harris | 26 | 129 | 2537 |
To. Saito | 25 | 56 | 2362 |
John F. O'Connell | 22 | 89 | 1763 |
Rade Vignjevic | 21 | 84 | 1563 |