Results 31 to 40 of about 836,304 (292)

Lateral gas diffusion inside leaves [PDF]

Journal of Experimental Botany, 2005
Diffusion of CO2 inside leaves is generally regarded to be from the substomatal cavities to the assimilating tissues, i.e. in the vertical direction of the leaf blades. However, lateral gas diffusion within intercellular air spaces may be much more effective than hitherto considered.
Roland, Pieruschka, Ulrich, Schurr, Siegfried, Jahnke   +2 more
openaire   +2 more sources

Research of influence of pressure and temperature on gas diffusion law

Gong-kuang zidonghua, 2015
For problems that gas adsorption-desorption method for determining gas diffusion coefficient is limited to coal particle and cannot apply confining pressure and set pressure arbitrarily, regular lump coal combined with gas chromatography analysis method ...
SU Heng, YANG Yong, CHEN Lianfang, ZHAO Jun   +3 more
doaj   +1 more source

Bayesian estimation for selective trace gas detection

, 2008
We present a Bayesian estimation analysis for a particular trace gas detection technique with species separation provided by differential diffusion. The proposed method collects a sample containing multiple gas species into a common volume, and then ...
A. K. Tuchman, J. K. Stockton, J. Ye, J.K. Stockton, K. McHale, K. Zhou, M. Todd, M.J. Thorpe, O.L.R. Jacobs, W.T. Reid   +9 more
core   +1 more source

Gas diffusion Electrode.

Journal of the Surface Finishing Society of Japan, 1991
Disclosed herein is a gas diffusion electrode comprising a reaction layer and a gas diffusion layer attached to each other characterized in that a plurality of apertures or a concave convex surface is provided on or through the electrode to facilitate the flowing of an electrolyte.
openaire   +3 more sources

The influence of coal pore structure on gas desorption-diffusion-seepage process

Gong-kuang zidonghua
Fully understanding the mechanism of coal seam gas migration is the fundamental prerequisite for improving extraction efficiency. At present, research on the micro migration features of coal gas mostly focuses on the micro pore gas migration features of ...
JIA Nan
doaj   +1 more source

A Dynamical Mean Field Theory for the Study of Surface Diffusion Constants

, 1997
We present a combined analytical and numerical approach based on the Mori projection operator formalism and Monte Carlo simulations to study surface diffusion within the lattice-gas model.
Ala-Nissila, Ala-Nissila, Carmesin, Chaturvedi, Chen, Danani, Ferrando, Ferrando, Gomer, Granek, Haus, Hänggi, I. Vattulainen, J. Merikoski, Kehr, Kutner, Mazenko, Mori, Murch, Myshlyavtsev, Nakazato, Reed, Risken, S.C. Ying, Sahu, T. Ala-Nissila, T. Hjelt, Tahir-Kheli, Torri, Vattulainen, Wichmann   +30 more
core   +1 more source

KINETIC FEATURES OF THE DISSOCIATION PROCESS OF GAS HYDRATE DEPOSITS [PDF]

, 2019
The research is aimed at revealing the theoretical features of the kinetics of the process of dissociation of natural gas hydrates, the accounting of which is useful in designing technologies for their development.
Petlovanyi, M, Prokopenko, K, Sai, K
core  

Magnetorotational instability in protoplanetary discs: The effect of dust grains [PDF]

, 2007
We investigate the linear growth and vertical structure of the MRI in protoplanetary discs when dust grains are well mixed with the gas over the entire disc thickness. All the grains have the same radius (a = 0.1, 1 or 3 micron) and constitute 1 % of the
Andrews, Balbus, Balbus, Blandford, Carballido, Consolmagno, Cowling, D'Alessio, Dullemond, Fromang, Gammie, Glassgold, Glassgold, Hayashi, Hayashi, Igea, Ilgner, Johnson, Kitamura, Knigl, Mark Wardle, Mathis, Matsumura, Morton, Nakagawa, Nakano, Nishi, Nomura, Norman, Oppenheimer, Ossenkopf, Raquel Salmeron, Salmeron, Salmeron, Salmeron, Sano, Sano, Semenov, Spitzer, Terquem, Turner, Umebayashi, Umebayashi, Van Dishoeck, Wardle, Wardle, Wardle, Wardle, Wardle, Weidenschilling   +49 more
core   +4 more sources

The Role of Invasive Procedures in the Treatment of Complicated Gastrointestinal Graft‐Versus‐Host Disease in Pediatric Patients

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Gastrointestinal graft‐versus‐host disease (GI GVHD) following hematopoietic stem cell transplant is typically managed with medical therapy, but surgery and angioembolization may be warranted in selected cases with life‐threatening complications.
Gaia Brunetti, Giorgio Persano, Chiara Grimaldi, Pier Luigi Di Paolo, Carmen Malaspina, Francesco Quagliarella, Valerio Balassone, Anna Chiara Iolanda Contini, Gian Luigi Natali, Rita Alaggio, Ivan Pietro Aloi, Tamara Caldaro, Alessandro Crocoli   +12 more
wiley   +1 more source

Novel Gas Sensor Signal Acquisition Method: Amplifying Sensor Signals and Enabling Efficient Gas Identification

Advanced Science
Enhancing sensor sensitivity and gas identification capabilities is essential for the broad application of gas sensors. Developing efficient transducing methods for sensors can be applied to a wide range of sensors.
Kangwook Choi, Ryun‐Han Koo, Jinwoo Park, Donghee Kim, Jaehyeon Kim, Hunhee Shin, Gyuweon Jung, Jong‐Ho Lee   +7 more
doaj   +1 more source