Results 261 to 270 of about 238,378 (313)

Glutamine transport in submitochondrial particles

American Journal of Physiology-Renal Physiology, 1989
Glutamine transport was studied in submitochondrial particles (SMP) to avoid interference from glutamine metabolism. Phosphate-dependent glutaminase activity in SMP was only 0.04% of that in intact mitochondria. The uptake of glutamine in SMP represented both the transport into vesicles and membrane binding (about one-third of total uptake ...
S, Sastrasinh, M, Sastrasinh
openaire   +2 more sources

Particle transport and image synthesis

ACM SIGGRAPH Computer Graphics, 1990
The rendering equation is similar to the linear Boltzmann equation which has been widely studied in physics and nuclear engineering. Consequently, many of the powerful techniques which have been developed in these fields can be applied to problems in image synthesis.
Arvo, James, Kirk, David
openaire   +3 more sources

Transport of sputtered neutral particles

Physical Review E, 1995
The initial deposition rate of sputtered material along the walls of a trench is calculated numerically. The numerical scheme is a nonstatistical description of long-mean-free-path transport in the gas phase. Gas-phase collisions are included by using a ``transition matrix`` to describe the particle motion, which in the present work is from the source ...
, Parker, , Hitchon, , Koch
openaire   +2 more sources

PARTICLE TRANSPORT IN ROUGH CHANNELS

International Journal of Modern Physics C, 2009
The transport of particles in two-dimensional self-affine rough channels is investigated through numerical simulations. We show how the average transit time depends on the particle Stokes number as well as on the restitution coefficient controlling the collisions with the walls.
Vasconcelos, Talita F., Araújo, A. D., Almeida, Murilo P., Andrade, José S. jun.   +3 more
openaire   +1 more source

Phosphate transport in submitochondrial particles

Biochemical and Biophysical Research Communications, 1974
Summary Submitocondrial particles prepared from bovine heart mitochondria in the presence of CaCl 2 on MnCl 2 take up inorganic phosphate. The reaction is sensitive to mersalyl and to hydrophobic N-benzylmaleimide but is insensitive to N-ethylmaleimide. These findings indicate that the phosphate transport system is oriented asymmetrically.
T R, Rhodin, E, Racker
openaire   +2 more sources

Particles and particle transport in ion implanters

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1985
Abstract The behavior of particles on wafers during implantation is analyzed and methods of eliminating particles are discussed. Particle transport is mainly aerodynamic and particles are held on wafers by electrostatic (and chemical) forces. By eliminating aerodynamic forces and decreasing electrostatic forces, particle count on wafers can be ...
D.H. Douglas-Hamilton, C. Taylor
openaire   +1 more source

Particle Transport and Deposition: Basic Physics of Particle Kinetics

Comprehensive Physiology, 2013
Abstract The human body interacts with the environment in many different ways. The lungs interact with the external environment through breathing. The enormously large surface area of the lung with its extremely thin air‐blood barrier is exposed to particles suspended in the inhaled air.
Akira, Tsuda, Frank S, Henry, James P, Butler   +2 more
openaire   +2 more sources

Particle transport in the Frascati Tokamak upgrade

Nuclear Fusion, 1996
Three methods of density modulation have been used in FTU discharges (gas puffing, pellet injection and current rampup). The analysis of particle balance confirms that the neoclassical theory is not adequate and the experimental results obtained by the three methods are used to verify the validity of an empirical expression for the radial particle flux.
Zanza, V, Segre, SE, Gabellieri, L, Alladio, F, Apicella, ML, Apruzzese, G, Bartiromo, R, Borra, M, Bracco, G, Buceti, G, Buratti, P, Centioli, C, Ciotti, M. :Cocilovo, V., Condrea, I., Crisanti, F., LDe Angelis, R., Esposito, B, Frattolillo, A., Frigione, D, Giovannozzi, E., Granucci, G., Grolli, M., Imparato, Kroegler, H, Leigheb, M, Lovisetto, L., Maddaluno, G, Mazzitelli, G, Micozzi, P, Migliori, S, MOLETI, ARTURO, Orsitto, F, Pacella, D, Panaccione, L, Panella, M, Pericoli, V, Pieroni, L, Podda, S, Righetti, G. B, Sternini, E, Tuccillo, A. A., Tudisco, O, Valente, F, Vitale, V, Zerbini, M.   +46 more
openaire   +4 more sources

Particle transport and heat loads in NIO1

Review of Scientific Instruments, 2015
NIO1 is a compact radio frequency ion source designed to generate a 60 kV-135 mA hydrogen negative ion beam and it aims at continuous operation, which implies a detailed thermo-mechanical analysis of the beam-facing components, in particular, the accelerator grids. A 3D analysis of the entire NIO1 beam has been performed for the first time with a fully
Fonnesu N, Cavenago M, Serianni G, Veltri P   +3 more
openaire   +7 more sources

Turbulent Particle Transport in Magnetized Plasmas

Physical Review Letters, 2003
Particle transport in magnetized plasmas is investigated with a fluid model of drift wave turbulence. An analytical calculation shows that magnetic field curvature and thermodiffusion drive an anomalous pinch. The curvature driven pinch velocity is consistent with the prediction of turbulence equipartition theory.
Garbet X, Garzotti L, Mantica P, Nordman H, Valovic M, Weisen H, Angioni C   +6 more
openaire   +4 more sources