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Morphed vertical tailplane assessment for certification requirements

Miguel Angel Castillo-Acero
2015 Zenodo  
The results, opinions, conclusions, etc. presented in this work are those of the author(s) only and do not necessarily represent the position of the JU; the JU is not responsible for any use made of the  ...  The JU receives support from the European Union's Horizon 2020 research and innovation programme and the Clean Sky 2 JU members other than the Union.  ...  The research leading to these results received funding from the European Union's Seventh Framework Programme (FP7/2007(FP7/ -2013  ... 
doi:10.5281/zenodo.3905083 fatcat:jegirrd5jbgeho7qtr7o3sfzpi

Adventures in Research: A History of Ames Research Center 1940-1965

John Niven, Edwin P. Hartman
1971 Journal of American History  
The position of this transition point was affected by a number of factors such as surface roughness, pressure gradient, and Reynolds number and it also seemed to be affected by the temperature of the body  ...  The first and best one, which had been recommended and actually checked out in flight by Lockheed, was the installation of flaps on the lower surface of the wing at the 33-percent-chord point.  ...  The first report, from the 6-by 6-foot tunnel, demonstrated a rather clever technique for measuring pressure distributions on a wing while it was undergoing forced bending oscillations at supersonic airspeeds  ... 
doi:10.2307/1917664 fatcat:6xqqviqbwnflbpy3dummbe7fiq

New Developments in Science and Technology - 60th Anniversary Special Issue, Beihang University (BUAA)

2012 Science  
There are 75 full-time teachers in the school, which annually graduates 150 undergraduates, 180 postgraduates, 50 Ph.D.s, and 10 students from abroad.  ...  Figure 1A captures the instant when a hovering Drosophila is flapping its wings.  ...  The oscillatory motions are influenced significantly by imperfections on the nose tips and by Reynolds numbers.  ... 
doi:10.1126/science.338.6104.274-c fatcat:iurk5neuwvh2jgbohwevb5dicy

ABSTRACTS

1995 American Zoologist  
Only one isomorph of each dHH and Mil reacted mainly with the anti-L A b , whereas the other Isoraorph of each hormone was recognized mainly by the anti-D A b .  ...  Lead, a potent ncurotoxin, has been associated with learning deficits as well as alterations in CNS ncurotransmiltcrs such as serotonin and norcpincphnnc.  ...  However, these two animals have very different in-flight behavioral responses to pulsed ultrasound: after a latency of 100-150 ms, tiger beetles push their non-flapping elytra backward into the flapping  ... 
doi:10.1093/icb/35.5.1 fatcat:dsk4lhapgvfbfjxrr2b22z4b2a

Advanced Algorithms of Collision Free Navigation and Flocking for Autonomous UAVs [article]

Taha Elmokadem
2021 arXiv   pre-print
A desirable feature for UAVs is the ability to navigate and perform tasks autonomously with least human interaction.  ...  Practical experiments and simulations were carried out to analyze the performance of the developed methods. The second part of this report addresses safe navigation for multi-UAV systems.  ...  Figure 5 .5 shows the indoor environment used for the flights, and a video of the experiments can be found at https://youtu.be/ByZklzqjMW0.  ... 
arXiv:2111.00166v1 fatcat:5jnrdu24xrbhraqzucsfsadl4y

The Management of Research Institutions: A Look at Government Laboratories

James R. Hansen, Hans Mark, Arnold Levine
1987 Technology and Culture  
designed to provide the capability to test at very high Reynolds numbers.  ...  a tunnel able to provide a more complete flow simulation of airflow over an entire aircraft (fig. 33) with the correct Reynolds Number, or close to it, to simulate flight conditions.* *  ...  helicopter program, 77, [79] [80] [81] [82] OAO program, [127] [128] [129] [130] [131] personnel management, 150-154; research and technology program, 105-111; Space Task Group, 151 National Bureau of  ... 
doi:10.2307/3105604 fatcat:gbl4qluitvbqhikcn4u2biabey

On fatigue life under stationary Gaussian random loads

Ramesh Talreja
1973 Engineering Fracture Mechanics  
Training was effected by pairing audible tone pulses with shock until the subject learned to cease drinking reliably in the presence of a signal.  ...  --This method is based on the acoustic tube model of the vocal tract in which the tube is divided into a finite number of sections with equal lengths. The volume velocity is defined in each section.  ...  The wing included a flap lift-augmentation system with flap deflectionangles of 20 ø for a takeoff condition and 60 ø for an approach condition.  ... 
doi:10.1016/0013-7944(73)90064-7 fatcat:eue2d6byvre4zczgb7qi5np5vi

On Fatigue Life Under Stationary Gaussian Random Loads

R. Talreja
1973 Journal of the Acoustical Society of America  
Training was effected by pairing audible tone pulses with shock until the subject learned to cease drinking reliably in the presence of a signal.  ...  --This method is based on the acoustic tube model of the vocal tract in which the tube is divided into a finite number of sections with equal lengths. The volume velocity is defined in each section.  ...  The wing included a flap lift-augmentation system with flap deflectionangles of 20 ø for a takeoff condition and 60 ø for an approach condition.  ... 
doi:10.1121/1.1982256 fatcat:w7xnxse54nerdlhsueme325zem

Analysis of Aperture Shape Changing Trend Base on the Shaped Charge Jet Penetration through the Steel Target [chapter]

Junqing Huang, Yalong Ma, Kelei Huang, Jianxun Zhao
2012 Communications in Computer and Information Science  
In this paper, we build a passive dynamic bipedal walking model with °at feet and compliant ankle joints. The bipedal walker travels on a slope actuated by the gravity.  ...  The results show that the chemical reaction makes the eddy diffusivity of species A small, and the effects of the chemical reaction on the eddy diffusivity depend on the Damköhler number.  ...  Finally, according to the simulation experiment of DC motor servo system, the validity of the simulation platform is demonstrated.  ... 
doi:10.1007/978-3-642-34384-1_2 fatcat:xvp3o6agk5hxpmbjptnthxiz5m

Poster Abstracts

2017 Integrative and Comparative Biology  
Deflection along the fluke span increased curvilinearly to a maximum at the tip of the fluke.  ...  This arrangement provides the flukes with both rigidity and flexibility. There has been disagreement regarding the contribution of the up-and down-stroke of the flukes to swimming.  ...  P1-262 CLARK, CJ*; MISTICK, E; UC Riverside; cclark@ucr.edu Hummingbird wing trill production over a range of flight speeds Hummingbirds are famous for the hum of their wings in flight.  ... 
doi:10.1093/icb/icx001 fatcat:tnwx27gpsjddjd4qvecg7ip5ma

A binaural advantage in the subjective modulation transfer function with simple impulse responses

Eric R. Thompson, Torsten Dau
2008 Journal of the Acoustical Society of America  
The application considered by this study is the noise produced by a flat plate in a two-dimensional duct at a thickness related Reynolds number of 1300.  ...  These simulations are benchmarked with analysis and with matching physical experiments on rough wall patches in which identical geometries of wall roughness and identical Reynolds numbers are used.  ...  the target at the intermediate level of proficiency.  ... 
doi:10.1121/1.2933699 fatcat:4nc5pg4ysbhgrjcatwhr7fh77q

On determination of microphone response and other parameters by a hybrid experimental and numerical method

Salvador Barrera‐Figueroa, Finn Jacobsen, Knud Rasmussen
2008 Journal of the Acoustical Society of America  
The application considered by this study is the noise produced by a flat plate in a two-dimensional duct at a thickness related Reynolds number of 1300.  ...  These simulations are benchmarked with analysis and with matching physical experiments on rough wall patches in which identical geometries of wall roughness and identical Reynolds numbers are used.  ...  the target at the intermediate level of proficiency.  ... 
doi:10.1121/1.2933455 fatcat:gl6kkwih6rbkriigc7g6ghdlnq

The importance of bass clarity in pop and rock venues

Niels W. Adelman‐Larsen, Eric R. Thompson
2008 Journal of the Acoustical Society of America  
The application considered by this study is the noise produced by a flat plate in a two-dimensional duct at a thickness related Reynolds number of 1300.  ...  These simulations are benchmarked with analysis and with matching physical experiments on rough wall patches in which identical geometries of wall roughness and identical Reynolds numbers are used.  ...  the target at the intermediate level of proficiency.  ... 
doi:10.1121/1.2932922 fatcat:fvtlbt6x5vgelp5p67x53qtvgi

Relationship between room shape and acoustics of rectangular concert halls

Andrzej K. Klosak, Anders C. Gade
2008 Journal of the Acoustical Society of America  
The application considered by this study is the noise produced by a flat plate in a two-dimensional duct at a thickness related Reynolds number of 1300.  ...  These simulations are benchmarked with analysis and with matching physical experiments on rough wall patches in which identical geometries of wall roughness and identical Reynolds numbers are used.  ...  Using of receivers, which record both sound pressure and its gradient make it easier to solve this problem in a number of cases.  ... 
doi:10.1121/1.2933354 fatcat:eymbpllxwjcfdbkedeijrtwbwq

The neural bases of normalising for accented speech: A repetition suppression functional magnetic resonance imaging study

Patti Adank, Peter Hagoort
2008 Journal of the Acoustical Society of America  
Where the flap allophone of "t" and "d" is expected in American English, one frequently sees an approximant-like or even vocalic pattern, rather than a clear flap.  ...  Degree of intensity dip has the strongest effect, with a minimal dip in intensity more likely to be perceived as 'kneel' and a strong dip in intensity more likely to be perceived as 'needle. ' The results  ...  Influence of Reynolds and Strouhal numbers on the oscillatory flow field in the stack are studied.  ... 
doi:10.1121/1.2934685 fatcat:qqmjcl5gjzcj7kssv2pi6efwti
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