Nitrate contamination of coastal groundwater: Sources and transport mechanisms along a volcanic aquifer

2021 ◽  
Vol 768 ◽  
pp. 145204
Author(s):  
Eunhye Kwon ◽  
Jonghoon Park ◽  
Won-Bae Park ◽  
Bong-Rae Kang ◽  
Nam C. Woo
Keyword(s):  
Nitrate Contamination ◽  
Volcanic Aquifer ◽  
Transport Mechanisms ◽  
Coastal Groundwater

Physical Properties of Isolated Perfused Renal Tubular Basement Membranes

1971 ◽  
Vol 29 ◽  
pp. 390-391
Author(s):  
Jared Grantham ◽  
Larry Welling
Keyword(s):  
Basement Membrane ◽  
Basement Membranes ◽  
Transport Mechanisms ◽  
Permeability Characteristics ◽  
Peritubular Capillaries ◽  
Strategic Location ◽  
Tubular Lumen ◽  
Glomerular Filtrate ◽  
Urine Formation ◽  
Renal Tubular

In the course of urine formation in mammalian kidneys over 90% of the glomerular filtrate moves from the tubular lumen into the peritubular capillaries by both active and passive transport mechanisms. In all of the morphologically distinct segments of the renal tubule, e.g. proximal tubule, loop of Henle and distal nephron, the tubular absorbate passes through a basement membrane which rests against the basilar surface of the epithelial cells. The basement membrane is in a strategic location to affect the geometry of the tubules and to influence the movement of tubular absorbate into the renal interstitium. In the present studies we have determined directly some of the mechanical and permeability characteristics of tubular basement membranes.

Alveolobronchiolar transport mechanisms

1973 ◽  
Vol 131 (1) ◽  
pp. 109-114 ◽  
Author(s):  
G. M. Green
Keyword(s):  
Transport Mechanisms

Long-range ballistic transport mechanisms in superconducting spintronics

2016 ◽  
Vol 186 (6) ◽  
pp. 640-646
Author(s):  
Alexei V. Samokhvalov ◽  
Alexander S. Mel'nikov ◽  
Alexander I. Buzdin
Keyword(s):  
Long Range ◽  
Ballistic Transport ◽  
Transport Mechanisms

Correlation of Burning Rates and Energy Transport Mechanisms in Open and Enclosed Liquid Pool Fires

1991 ◽  
Author(s):  
David E. Ramaker ◽  
K. C. Adiga ◽  
H. Zhang ◽  
M. Pivovarov ◽  
S. W. Baek
Keyword(s):  
Energy Transport ◽  
Liquid Pool ◽  
Pool Fires ◽  
Transport Mechanisms ◽  
Burning Rates

Incorporation of spatial variability in modeling non-point source groundwater nitrate pollution

1996 ◽  
Vol 33 (4-5) ◽  
pp. 233-240 ◽  
Author(s):  
F. S. Goderya ◽  
M. F. Dahab ◽  
W. E. Woldt ◽  
I. Bogardi
Keyword(s):  
Spatial Variability ◽  
Point Source ◽  
Three Dimensional ◽  
Nitrate Contamination ◽  
Geostatistical Simulation ◽  
Chemical Measurements ◽  
Spatially Distributed ◽  
Potential Benefits ◽  
Zone Modeling ◽  
Physical And Chemical

A methodology for incorporation of spatial variability in modeling non-point source groundwater nitrate contamination is presented. The methodology combines geostatistical simulation and unsaturated zone modeling for estimating the amount of nitrate loading to groundwater. Three dimensional soil nitrogen variability and 2-dimensional crop yield variability are used in quantifying potential benefits of spatially distributed nitrogen input. This technique, in combination with physical and chemical measurements, is utilized as a means of illustrating how the spatial statistical properties of nitrate leaching can be obtained for different scenarios of fixed and variable rate nitrogen applications.

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