Results 181 to 190 of about 1,277 (217)

Hydrogen shuttling effect of azaaromatics in the hydrogenolysis of the diarylmethane

Fuel, 1989
Abstract The effects of hydrogen shuttling encountered in coal liquefaction have been discussed by using 2- and 3-ring azaaromatics and aromatic hydrocarbons as hydrogen shuttlers in the hydrogenolysis of 9-benzylphenanthrene in tetralin at 430 °C.
Shigeru Futamura, Seiya Koyanagi, Yoshio Kamiya   +2 more
openaire   +1 more source

Effects of amphetamine on shuttle-box performance of hamsters

Pharmacological Research Communications, 1970
Summary Golden and albino hamsters showed poor avoidance responding in the shuttle-box. The administration of amphetamine in pretrained animals clearly improved performance. Results are discussed in relation to a possible disinhibitory effect of the drug and to a consequent increase in the vigilance level.
Mario Sansone, Paolo Renzi
openaire   +1 more source

Dynamic Effects from the Space Shuttle Liftoff

Engineering, Construction, and Operations in Space V, 1996
This paper presents a study of the dynamic effects of the Space Shuttle launches on the ground support structures at Launch Pad 39A at the NASA-Kennedy Space Center. Pressure and structural acceleration data recently recorded at the Kennedy Space Center in support of a 1990-1992 study were reviewed and incorporated with additional recordings of similar
Barsoum, Fady F., Carroll, William F.
openaire   +2 more sources

Modeling and experiment of shuttling speed effects on the OSTRYCH

Applied Thermal Engineering, 2011
Abstract A novel OScillatory TheRmal cYcler CHamber (OSTRYCH) has been designed and fabricated in our work. The sample is placed in a fixed chamber, and three constant isothermal zones are established and lined up in the system. The sample is oscillated and comes into contact with three different isothermal zones to complete thermal cycles.
Jyh Jian Chen, Yao Tsung Yang
openaire   +1 more source

Surfactant adsorption rather than “shuttle effect”?

Chemical Engineering Science, 2005
Abstract In the absence of chemical reaction, mass transfer enhancement by suspended particles (mostly activated carbon) at the gas/liquid interface has been frequently reported and is usually explained by a “shuttle mechanism” exerted by particles with a high adsorption capacity for the transfer component.
Aydin Kaya, Adrian Schumpe
openaire   +1 more source

Effects of low attenuation in a nanomechanical electron shuttle

Journal of Applied Physics, 2004
We have measured the spectral current characteristics of a nanomechanical electron shuttle in a tuning-fork configuration. This particular design enhances the quality factor Q of the nanoelectromechanical system. Comparing the experimental results to a precedingly studied low-Q device, we find a substantially different current behavior, indicating an ...
Dominik V. Scheible, Christoph Weiss, Robert H. Blick   +2 more
openaire   +1 more source

Amphetamine effects on poor performance of rats in a shuttle-box

Psychopharmacologia, 1966
In rats which showed consistently low rates of avoidance in the shuttle-box, in spite of extensive training, d-amphetamine caused a significant increase in performance. l-Amphetamine also stimulated these rats (type II poor performers) to better performance, but was much less potent.
openaire   +2 more sources

Catalytic surface effects experiment on the Space Shuttle

16th Thermophysics Conference, 1981
A Space Shuttle experiment planned to measure the surface catalytic efficiency of the baseline high-temperature reusable surface insulation (HRSI) during earth entry is described. A spray-on overcoat, with high catalytic efficiency, will be used as a comparative basis for determining the HRSI surface catalytic efficiency through surface temperature ...
D. STEWART, J. RAKICH, M. LANFRANCO
openaire   +1 more source

Thyroid Status of Space Shuttle Crewmembers: Effects of Iodine Removal

Aviation, Space, and Environmental Medicine, 2011
Iodine is often used for water purification and has been used throughout the U.S. space program. Because of concern about potential effects on crewmembers' thyroid function, in 1997 a system was implemented on board the Space Shuttles to remove iodine from water before it was consumed.
Scott M, Smith, Sara R, Zwart, Kathleen A, McMonigal, Carolyn L, Huntoon   +3 more
openaire   +2 more sources

Facilitation of shuttle-box avoidance by the platform method: Temporal effects

Physiology & Behavior, 1991
Two experiments were carried out in order to 1) replicate a previous finding according to which the treatment on large platforms (commonly used as control for the stress induced by smaller paradoxical sleep deprivation platforms) can facilitate the acquisition and long-term retention (LTR) of a distributed shuttle-box avoidance in rats, and 2) further ...
M, Coll-Andreu, M, Martí-Nicolovius, I, Morgado-Bernal   +2 more
openaire   +2 more sources