搜索结果: 1-15 共查到“理学 surface area”相关记录35条 . 查询时间(0.183 秒)
Researchers Inadvertently Boost Surface Area of Nickel Nanoparticles for Catalysis（图）
Researchers Boost Surface Area Nickel Nanoparticles Catalysis
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2017/12/18
Ni nanoparticles (NPs) catalyze many chemical reactions, in which they can become contaminated or agglomerate, resulting in poorer performance. We report deposition of silica (SiO2) onto Ni NPs from t...
Hydrology and Water Balance of Devils Lake Basin: Part 1 - Hydrometeorological Analysis and Lake Surface Area Mapping
hydrometeorology Devils Lake remote sensing Geographic Information System GIS runoff
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2015/8/11
The spatial distribution of stocks of water is useful in studying flood, water pollution and water supply problems. Flood prone and closed basin watersheds benefit from spatial water balance studies i...
Hydrology and Water Balance of Devils Lake Basin: Part 1 - Hydrometeorological Analysis and Lake Surface Area Mapping
Geographic Information System GIS runoff
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2015/1/6
The spatial distribution of stocks of water is useful in studying flood, water pollution and water supply problems. Flood prone and closed basin watersheds benefit from spatial water balance studies i...
Gill surface area and metabolic enzyme activities of demersal fishes associated with the oxygen minimum zone off California
Gill surface area metabolic enzyme activities demersal fishes associated oxygen minimum zone California
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2014/4/2
Metabolic enzyme activities and gill surface areas were measured across 10 species of demersal fishes from Monterey Canyon, California, which features a prominent oxygen minimum zone (OMZ). Comparison...
Gill surface area and metabolic enzyme activities of demersal fishes associated with the oxygen minimum zone off California
Gill surface area metabolic enzyme activities demersal fishes associated oxygen minimum zone California
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2014/4/4
Metabolic enzyme activities and gill surface areas were measured across 10 species of demersal fishes from Monterey Canyon, California, which features a prominent oxygen minimum zone (OMZ). Comparison...
PRETREATMENT OF SOILS AND CLAYS FOR MEASUREMENT OF EXTERNAL SURFACE AREA BY GLYCEROL RETENTION
SOILS CLAYS GLYCEROL RETENTION
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2011/11/15
Heat treatment at 600~ has been the usual procedure for irreversible collapse of expanding clay minerals prior to determination of the external surface area of clays and soils by glycerol retention. E...
The Log-Convex Density Conjecture and vertical surface area in warped products
The Log-Convex Density Conjecture vertical surface area warped products Differential Geometry
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2011/9/19
Abstract: We examine the vertical component of surface area in the warped product of a Euclidean interval and a fiber manifold with product density. We determine general conditions under which vertica...
Simulation of the specific surface area of snow using a one-dimensional physical snowpack model:implementation and evaluation for subarctic snow in Alaska
specific surface area snow one-dimensional physical snowpack model subarctic snow Alaska
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2010/2/3
The specific surface area (SSA) of the snow constitutes a powerful parameter to quantify the exchange of matter and energy between the snow and the atmosphere. However, currently no snow physics model...
Measurement of the specific surface area of snow using infrared reflectance in an integrating sphere at 1310 and 1550 nm
specific surface area snow infrared reflectance integrating sphere
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2010/2/3
Even though the specific surface area (SSA) and the snow area index (SAI) of snow are crucial variables to determine the chemical and climatic impact of the snow cover, few data are available on the s...
Size and Fraction of Active Surface Area of Some Jupiter Family Comets：Implications with Respect to their Physical Evolution
Active Surface Area Physical Evolution Jupiter Family Comets
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2009/6/5
Size and Fraction of Active Surface Area of Some Jupiter Family Comets：Implications with Respect to their Physical Evolution。
Confirmation of surface area of the southern basin of Lake Biwa Japan
southern basin of Lake Biwa surface area
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2009/4/2
We confirmed assumptions that had been used in the literatures for calculating the surface area of the southern basin of Lake Biwa. The area of 58 km2 generally use still in had been estimated based u...
Three examples where the specific surface area of snow increased over time
Three examples specific surface area snow increased over time
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2010/2/3
Snow on the ground impacts climate through its high albedo and affects atmospheric composition through its ability to adsorb chemical compounds. The quantification of these effects requires the knowle...
A novel way for preparing high surface area silica monolith with bimodal pore structure
A novel way preparing high surface area silica monolith bimodal pore structure
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2013/12/12
The crack-free silica monolith with macropores and mesopores has successfully been achieved in the presence of citric acid as nonsurfactant via sol-gel reactions of tetramethoxysilane (TMOS). Citric a...
Measuring the specific surface area of snow with X-ray tomography and gas adsorption: comparison and implications for surface smoothness
snow X-ray tomography surface smoothness
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2008/10/31
Chemical and physical processes, such as heterogeneous chemical reactions, light scattering, and metamorphism occur in the natural snowpack. To model these processes in the snowpack, the specific sur...
On Busemann Surface Area of the Unit Ball in Minkowski Spaces
Busemann surface area Cross-section measure Isoperimetrix Intersection body Mixed volumes Projection body
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2008/6/30
On Busemann Surface Area of the Unit Ball in Minkowski Spaces.