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Indiana University and Virginia Tech geochemists show experimental verification of key principle
Indiana University Virginia Tech geochemists
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2016/3/21
Geochemists at Indiana University and Virginia Tech have developed and demonstrated a technique for assessing the validity of a principle that has long been important in thermodynamics and chemical ki...
Carbon dioxide and methane emissions from calcareous-marly rock under stress: experimental tests results
gas geochemistry earthquake precursors greenhouse gases
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2015/9/10
The identified emissions of abiogenic carbon dioxide, carbon monoxide and methane are generally attributed to
volcanic activity or to geochemical processes associated with thermometamorphic effects. ...
Experimental study of rare earth element partitioning between calcite and sodium chloride solution at room temperature and pressure
rare earth elements lanthanide calcite partition coefficient calcium carbonate
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2017/4/11
The rare earth element (REE) partition coefficients between calcite and aqueous solution were obtained experimentally
under the conditions of pH, ionic strength and REE concentration level in the par...
EXPERIMENTAL TEST ON CONTROL POINTS MATERIALIZATION FOR THE STUDY OF VERTICAL MOVEMENTS OF SOIL AND ITS INTERACTIONS WITH GROUND WATER CONTENTS
Benchmarks Monumentation Vertical movements Measurement Monitoring Levelling InSAR Soil water content
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2014/4/24
In the study of soil vertical movements, one of the techniques most commonly used is the spirit levelling, now flanked by satellite
SAR interferometry and by the analysis of time series acquired thr...
Seasonal variation of isoprene basal emission in mature Quercus crispula trees under experimental warming of roots and branches
isoprene biogenic volatile emission Quercus crispula experimental warming
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2017/4/11
Isoprene is a reactive volatile organic compound (VOC), the annual global biogenic emissions of which are the largest
of the non-methane VOC. Since isoprene emissions are partly temperature-driven, u...
Experimental study on coarse grain saltation dynamics in bedrock channels
Experimental study coarse grain saltation dynamics bedrock channels
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2014/4/8
Saltation of bed load particles on bedrock surfaces is important for landscape evolution and bedrock incision in steep landscapes. However, few studies have investigated saltation in bedrock channels ...
Molybdenum isotope fractionations observed under anoxic experimental conditions
molybdenum isotopes diagenesis sediments
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2017/4/11
Experiments were carried out to determine molybdenum isotope fractionation associated with adsorption to pyrite.
Results show that the Mo isotope composition of the aqueous solution becomes progressi...
IDENTIFICATION OF THE EXPERIMENTAL DATA OF DYE ADSORPTION ON NATURAL DISPERSED SORBENTS TO THEORETICAL MODELS
adsorption natural dispersed sorbents dyes identification Isotherm theoretical models of adsorption
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2011/11/11
The present study deals with removal of organic dyes from wastewater onto natural dispersed sorbents, namely bentonite, glauconite and paligorskyte. The obtained data were fitted to various theoretica...
Modification of Nano-Titanium Dioxide Film and Processing Experimental Study of Tannery Waste Water
Modification Nano Meter Titanium Dioxide Photocatalysis Tannery Wastewater
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2011/12/16
This paper was prepared by liquid phase deposition of quartz sand load nanometer titanium dioxide film, in which quartz sand as the carrier, and to Fe3+,Zn2+ as doping on the membrane was modified. Th...
Experimental Study on Ultra-Structure and Frictional Properties of Zaocys Dhumnades’s Ventral Scale
Frictional Coefficient Reducing Adhesion Reducing Resistance Ultra-Structure Ventral Scale Zaocys Dhumnades
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2011/12/21
The ultra-structures of Zaocys dhumnades’s ventral scale surface were observed by the AFM (Atomic Force Microscopy), at the same time, the frictional properties between ventral scale and the stainless...
Sorption of radioeuropium onto attapulgite: effect of experimental conditions
Eu(III) Sorption Attapulgite pH Thermodynamic parameters
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2011/11/10
Batch sorption experiments were performed to remove Eu(III) ions from aqueous solutions by using attapulgite under ambient conditions. Different experimental conditions, such as contact time, solid co...
Thermochemical reduction of magnesium sulfate by natural gas: Insights from an experimental study
natural gas thermochemical sulfate reduction (TSR) carbon isotope fractionation
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2017/4/12
Thermochemical reduction of MgSO4 by natural gas was carried out in the presence of water. Chemical and carbon
isotopic variations were characterized with microcoulometry, gas chromatography, FT-IR, ...
Effects of experimental warming and increased ultraviolet B radiation on the Mediterranean plankton food web
experimental warming increased ultraviolet
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2014/4/4
The responses of the plankton food web to increases in temperature and ultraviolet B radiation (UVBR, 280–
320 nm) were experimentally investigated at a coastal Mediterranean site during spring. Eigh...
Experimental study on the fractionation of yttrium from holmium during the coprecipitation with calcium carbonates in seawater solutions
calcium carbonates seawater Y/Ho ratios covalency
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2017/8/10
The partitioning of Y and Ho between CaCO3 (calcite and aragonite respectively) and seawater was experimentally investigated at 25°C and 1 atm. Both Y and Ho were observed to be strongly partitioned i...
Can pressure promote hydrocarbon generation from organic matter?—New experimental proof
pressure pyrolysis natural gas carbon and hydrogen isotopes
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2017/8/9
In order to investigate if pressure can increase the yield of the yield of methane and gaseous hydrocarbon as a whole, both anhydrous and hydrous isothermal pyrolysis experiments were performed on Fus...