Results 261 to 270 of about 80,156 (297)
Some of the next articles are maybe not open access.

Capillary electrophoresis of homogeneous pectin fractions

Carbohydrate Polymers, 2005
Capillary electrophoresis (CE) has been used to characterize pectin fractions obtained from mother samples of varying degrees (and intramolecular patterns) of methylesterification (DM). These samples have been carefully produced by fractionation, (a) from the original mother samples on the grounds of molar mass, and (b) subsequently from the daughter ...
Anna Strom   +2 more
exaly   +4 more sources

Solvent extraction as a means of preparing homogeneous lignin fractions

open access: yesHolzforschung, 2011
Sequential extraction method was applied to lignins from hardwood and softwood isolated by kraft and VTT organosolv processes. Solvent extraction was found to fractionate lignin according to the molecular weight: small molecular weight lignin is ...
Stella Rovio   +2 more
exaly   +2 more sources

A novel metering system consists of capacitance-based sensor, gamma-ray sensor and ANN for measuring volume fractions of three-phase homogeneous flows

open access: yesNondestructive Testing and Evaluation
Measuring the volume fraction of different types of fluids with two or three phases is so vital. Among all available methods, two of them, capacitance-based and gamma-ray attenuation, are so popular and widely used.
Farhad Fouladinia   +2 more
exaly   +2 more sources

Fractional Programming with Homogeneous Functions

Operations Research, 1974
This paper extends the well known results for linear fractional programming to the class of programming problems involving the ratio of nonlinear functionals subject to nonlinear constraints, where the constraints are homogeneous of degree one and the functionals are homogeneous of degree one to within a constant. Two rather general auxiliary problems
Stephen P. Bradley, Sherwood C. Frey Jr.
openaire   +2 more sources

Thyroglobulin in Fractions of Thyroid Homogenate

Endocrinology, 1970
It is known that, from a homogenate of thyroid gland, lysosomes, colloid droplets and their combined form, “phagosomes,” can be sedimented at 15,000 g. We injected mice with radioiodine and then studied the effect of an injection of thyrotropin on some aspects of the distribution of radioactivity in the 15,000 g pellet obtained from their pooled ...
N, Konno, P V, Murthy, J M, McKenzie
openaire   +2 more sources

Homogeneous catalytic hydrodesulfurization of petroleum fractions

Chemistry and Technology of Fuels and Oils, 1995
I M Kolesnikov   +2 more
exaly   +2 more sources

Functional properties of homogeneous protein fractions from peanut (Arachis hypogaea L.)

open access: yesJournal of Agricultural and Food Chemistry, 1994
Protein fractions, arachin, conarachin I, and conarachin II, from peanut (Arachis hypogaea L.) were isolated to homogeneity and their functional properties were studied.
Monteiro, P. V., Prakash, V.
exaly   +1 more source

Duality in Homogeneous Fractional Programming

Journal of Information and Optimization Sciences, 1980
The usual theory of duality for linear fractional programs is extended by replacing the linear functions in the numerator and denominator by arbitrary positively homogeneous convex functions. In the constraints the positive orthant Rn> is replaced by an arbitrary cone A number of closely related pairs of problems are considered and converse as well as ...
B. Mond, M. Schechter
openaire   +1 more source

Centrifugal fractionation of homogenized milks

Journal of Dairy Research, 1985
SUMMARYA set of 12 fractions was isolated from homogenized cows' milk by a method of successive centrifugation steps. The fractions were analysed in terms of fat and protein contents and the diameters of the particles in them were also measured.
Douglas G. Dalgleish   +1 more
openaire   +1 more source

Bilinear Fractional Integral Along Homogeneous Curves

Journal of Fourier Analysis and Applications, 2016
We define the bilinear fractional integral \(T_{\beta}\) along homogeneous curves \(\gamma(t)=(t^{\beta_1}, t^{\beta_2})\) by \[ T_{\beta}(f, g)(x) = \int_{0}^{\infty} f(x-t^{\beta_1}) g(x-t^{\beta_2}) \, t^{\beta-1} \, dt, \] where \(\beta_2 > \beta_1 > \beta > 1\).
Li, Junfeng, Liu, Peng
openaire   +2 more sources

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