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Organic matter and crude protein digestibility predicted from nitrogen and fibre fractionation of festulolium hybrids
nitrogen fractions Cornell system nutritive value ruminant
2018/11/23
The objectives of the experiment were to study nitrogen fractions of the Cornell Net Carbohydrate and Protein System (CNCPS) and digestibility of organic matter (OMD) and crude protein (CPD) along wit...
Extraction, Fractionation, and Chemical Characterisation of Fucoidans from the Brown Seaweed Sargassum pallidum
brown seaweed Sargassum pallidum fucoidan extraction cytotoxic activity
2016/12/9
The fucoidans were obtained by extraction with water and gradient precipitation with different concentrations of ethanol. The main structural characterisations and bioactivities were achieved. Four fr...
Size fractionation of nanoparticulate metal sulfides in oxic water of Lake Teganuma, Japan
metal sulfides nanoparticle size fractionation acid volatile sulfides Lake Teganuma
2017/4/10
Concentrations of acid volatile sulfides (AVS) as metal sulfides in three different size fractions (<30 nm, 30–200 nm,
>200 nm) at Lake Teganuma were measured using a nano-filtration followed by a pu...
Origin of unusual fractionation of Pb isotope ratios with calcium in thalliumspiked multiple collector-inductively coupled plasma mass spectrometry
Pb isotope, fractionation, MC-ICPMS
2017/4/10
We report the origin of significant fractionation of Pb isotope ratios in Ca-doped 0.08 mol L–1 HNO3 solutions. We
applied Tl-spiked standard bracketing mass fractionation correction using solution-b...
Determination of relative Faraday cup efficiency factor using exponential law mass fractionation model for multiple collector thermal ionization mass spectrometry
Faraday cup efficiency TIMS Sr isotope exponential
2017/4/10
A new method for determining the relative Faraday cup efficiency (RFCE) for nine Faraday cups has been developed
using 86Sr, 87Sr, and 88Sr isotope signals, and the exponential mass fractionation law...
ALTERED FRACTIONATION IN LOCALLY ADVANCED HEAD AND NECK CANCER–AN UPDATE
LOCALLY ADVANCED HEAD ALTERED FRACTIONATION
2015/3/20
Efforts to improve the cure rates of advanced squamous cell carcinoma of the head and neck cancer have been made
by altering the dose and fractionation schedules for radiation treatment in an attempt...
15 N fractionation between vegetation, soil, faeces and wool is not influenced by stocking rate
15-N Enrichment Trophic shift Diet C/N ratio Plant-animal-soil system Cycling
2015/2/4
Understanding stable isotope fractionation in trophic networks is important for the interpretation of stable isotope composition of ecosystem components. This work explores the influence of grazing pr...
Fractionation and structural identification of antibiotic activity substances from Streptomyces herbaricolor HNS2-2
Streptomyces Herbaricolor HNS2-2 Quercetin Dehydrate
2013/2/28
Four groups of antibiotic activity compounds were separated and purified from the ethyl acetate fraction of a broth culture of Streptomyces herbaricolor HNS2-2.Trace analyses were performed and anti-m...
Efficiency of size-dependent particle separation by pinched flow fractionation
Particle separation Pinchedtionation Fluid Dynamics
2012/4/24
Pinched flow fractionation is shown to be an efficient and selective way to quickly separate particles by size in a very polydisperse semi-concentrated suspension. In an effort to optimize the method,...
Hydrogen and carbon isotope fractionation by thermophilic hydrogenotrophic methanogens from a deep aquifer under coculture with fermenters
methane isotope fractionation hydrogenotrophic methanogen syntrophic cooperation hydrogen concentration
2017/4/11
To elucidate the isotope geochemistry of CH4 production in deep subsurface environments, we investigated the relation
between H2 concentration and hydrogen and carbon isotope fractionation by CO2 red...
Prediction of equilibrium Li isotope fractionation between minerals and aqueous solutions at high P and T: an efficient ab initio approach
Li isotope fractionation equilibrium minerals aqueous
2011/8/11
Abstract: The mass-dependent equilibrium stable isotope fractionation between different materials is an important geochemical process. Here we present an efficient method to compute the isotope fracti...
Prediction of equilibrium Li isotope fractionation between minerals and aqueous solutions at high P and T: an efficient ab initio approach
equilibrium isotope fractionation aqueous solutions efficient initio approach
2011/10/14
The mass-dependent equilibrium stable isotope fractionation between different materials is an important geochemical process. Here we present an efficient method to compute the isotope fractionation be...
On the theoretical calculations of oxygen isotope fractionation factors for carbonate-water systems
oxygen isotope fractionation factor carbonate-water system theoretical calculation
2017/4/12
Theoretical and experimental aspects of oxygen isotope fractionation in carbonate minerals are critically examined
based on a direct comparison of fractionation factors for carbonate-water systems. T...
Microbial carbon isotope fractionation to produce extraordinarily heavy methane in aging hydrothermal plumes over the southwestern Okinawa Trough
hydrothermal plume chemistry microbial methane oxidation carbon isotope fractionation southern Okinawa Trough
2017/8/9
Within neutrally buoyant hydrothermal plumes derived from the Yonaguni Knoll IV hydrothermal field (24°51′N, 122°42′E, D = 1,370-1,385 m) in the southwestern Okinawa Trough back-arc basin, we obtained...
Influence of the environmental conditions on the fractionation of heavy metals in the Fenhe reservoir sediment
reservoir sediment-water interface heavy metal fractionation environmental conditions
2017/8/9
The BCR sequential extraction and EDTA single extraction method were applied to study the fractionation, concentration and bioaccessibility of the heavy metals in the sediment of Fenhe reservoir in No...