Results 261 to 270 of about 734,199 (300)

Electric Pulse Discharge Activated Carbon Supercapacitors for Transportation Application

JOM, 2012
ScienceTomorrow is developing a high-speed, low-cost process for synthesizing high-porosity electrodes for electrochemical double-layer capacitors. Four types of coal (lignite, subbituminous, bituminous, and anthracite) were used as precursor materials for spark discharge activation with multiscale porous structure.
Subhadarshi Nayak, Jyoti Agrawal
openaire   +1 more source

Transport of Methane, Acetylene, and Acetaldehyde through Activated Carbon

Separation Science and Technology, 1990
Abstract The outlet concentration as a function of time for pulsed and stepped inputs of 100 ppm concentrations of methane, acetylene, and acetaldehyde adsorptives in helium at 1 atm pressure through columns of activated carbon at 25°C were measured and correlated with the solutions to a longitudinal-diffusion model with a linear isotherm.
R. Forsythe, R. Madey, P. J. Photinos
openaire   +1 more source

Ionic Transport in Pores in Activated Carbons for EDLCs

Journal of The Electrochemical Society, 2006
The transport properties and morphology of an activated carbon containing macro-, meso-, and micropores were studied and compared to a sophisticated fully nanoporous carbon that almost lacks meso ...
Helena Malmberg, Marcelo Zuleta, Anders Lundblad, Pehr Björnbom   +3 more
openaire   +1 more source

Transport and Sorption of Water Vapor in Activated Carbon

Journal of Environmental Engineering, 1996
Control of organic vapors by adsorption on activated carbon can be impacted by the presence of water vapor in the gas stream. As a foundation to better understand this issue, the transport and sorption of water vapor within activated carbon grains were studied.
Tsair-Fuh Lin, William W. Nazaroff
openaire   +1 more source

Surface carbonic anhydrase activity on astrocytes and neurons facilitates lactate transport

Glia, 2003
AbstractA number of studies have provided physiological evidence for extracellular carbonic anhydrase (CA) in brain. Association of extracellular CA with glia has been limited to functional studies of gliotic slices and retinal Muller cells. While astrocytes contain intracellular CA, there has been no direct evidence for surface CA on these cells.
Nataliya, Svichar, Mitchell, Chesler
openaire   +2 more sources

Evidence of carbonic anhydrase activity in skeletal muscle: A role for facilitative carbon dioxide transport

Respiration Physiology, 1974
Abstract Carbon dioxide, water and vascular space were measured in the hind limb of the dog, with blood and plasma perfusion, before and after the administration of acetazolamide. Inhibition of carbonic anhydrase by acetazolamide resulted in a decrease in carbon dioxide space from greater than water space to similar to vascular space.
D T, Zborowska-Sluis, A, L'Abbate, G A, Klassen   +2 more
openaire   +2 more sources

Histochemical Demonstration of Carbonic Anhydrase Activity in Some Epithelia Noted for Active Transport

Acta Physiologica Scandinavica, 1968
AbstractAn improved histochemical method for demonstration of carbonic anhydrase has been applied to a number of epithelia engaged in electrolyte transport.Heavy staining was found close to or in the following regions: Intercellular spaces bordered with folded epithelial membranes (unpigmented epithelium of rabbit ciliary processes, straight segment of
openaire   +2 more sources

Intraparticle Mass Transport Mechanism in Activated Carbon Adsorption of Phenols

Journal of Environmental Engineering, 1996
Two parallel diffusion mechanisms, pore and surface, can control the rate of contaminant adsorption. The two mechanisms are different functions of temperature and adsorbate concentration. To develop a mechanistic design model for adsorption processes, the two mechanisms must be evaluated separately.
E. G. Furuya, H. T. Chang, Y. Miura, H. Yokomura, S. Tajima, S. Yamashita, K. E. Noll   +6 more
openaire   +1 more source

Capillary transport in adsorption from liquid phase on activated carbon

AIChE Journal, 1999
AbstractTwo models presented here predict the kinetics of adsorption from solution. The adsorbate is considered to form a capillary separated phase inside the micropores. The transport in the adsorbed phase is modeled as capillary transport under the influences of gradients in capillary pressure.
Aarden, F.B., Kerkhof, P.J.A.M., Zanden, van der, A.J.J.   +2 more
openaire   +1 more source

Transport of Cr(VI) through clay liners containing activated carbon or acid-activated bentonite

Applied Clay Science, 2010
Abstract The potential of clays containing 3 or 6% granular activated carbon (GAC) or 3 or 6% acid-activated bentonite was assessed for use as a landfill liner-soil material. Permeability, batch adsorption and column tests were performed to evaluate the seepage properties, the Cr(VI) adsorption capacity and transport parameters of the soils. All soil
Haijun Lu, Maotian Luan, Jinli Zhang
openaire   +1 more source