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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
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
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...
Comparison by 35S Radiotracer Methods of Hydrodesulfurization Behavior for Molybdenum, Cobalt-Molybdenum and Nickel-Molybdenum Catalysts Supported on γ-Alumina and High Specific Surface Area Titania
Hydrodesulfurization Dibenzothiophene γ-Alumina High surface area titania
2009/7/28
The differences between MoS2, CoMoS and NiMoS HDS catalysts supported on γ-alumina and high SSA titania are investigated based on the results of [35S]DBT HDS experiments. Previous studies of MoS2 and ...
Three examples where the specific surface area of snow increased over time
Three examples specific surface area snow increased over time
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...
Characteristics of the specific surface area of Vertisolsfrom the Gezira region in Sudan
water vapour adsorption specific surface area Vertisol Suda
2008/11/21
In this work the investigations of water vapour adsorption and calculation the specific surface area of soil samples of Sudanese Vertisols in North (NG), Central (CG) and South (SG) Gezira are present...
Specific surface area of Lublin Polesie mucks determined from water vapour and nitrogen adsorption data
specific surface area mucks adsorption of water vapour and nitrogen
2008/11/11
Laboratory studies of nitrogen and water vapour adsorption on mucks originating from Lublin Polesie Region are presented. The Brunauer-Emmet and Teller (BET) equation was used to analyze the experime...
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
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...
Application of Methylene Blue Adsorption to Cotton Fiber Specific Surface Area Measurement: Part I. Methodology
Specific Surface Area Measurement Cotton Fiber Methylene Blue Adsorption
2008/4/14
Adsorption of methylene blue or 3,7 bis (dimethylamino) phenothiazin-5-ium ion was used to measure the specific surface areas of six cotton fibers taken from the International Calibration Cotton Stand...
Effects of Iron Oxidation State on the Specific Surface Area of Nontronite
Ethylene glycol-monoethyl ether Iron Nontronite Oxidation Specific surface area
2012/1/9
The effect of Fe oxidation state on the specific surface area, Sm, of nontronite was studied using the <2-祄, Na+-saturated fraction of the SWa-1 and Garfield nontronite reference clays. The reduction ...
Measurement of the Specific Surface Area of Clays by Internal Reflectance Spectroscopy
Ethylene glycol monoethyl ether Infrared spectroscopy Internal reflectance spectroscopy Molar absorptivity Montmorillonite Surface area
2012/2/2
The specific surface area, S, of a clay is commonly measured by the adsorption of ethylene glycol monoethyl ether (EGME); however, this method can be tedious and time consuming, especially if the clay...