The paper presents the results of a 2016–2018 study to determine effect share components in mixture and harvest date on weed infestation yield mixtures field pea with spring triticale. Two factors were studied experiment: proportion mixture: – clean sowing 100%, triticale 75% + 25%, 50% 50%, 25% 75%; harvesting date: flowering stage (BBCH 65), flat green pod 79). obtained allow us conclude that...

abstract bee venom is a complex mixture of proteins, peptides and low molecular components: proteins (enzymes) :( phospholipase, a2phospholipase b, hyaluronidase α – glucosidase) - , peptides (melittin, apamine mcd peptide,adolapine ,procamine a and b, protease inhibitors)- low molecular components: biogenic amines:( histamine, dopamine and noradrenalin) - pheromones: complex ethers- sugars :( ...

We consider the problem of zonal electrophoresis a two-component mixture with spatially periodic initial distribution components. Two methods solution are proposed: analytical (hodograph method) and numerical (method finite volumes). A comparative analysis results obtained is performed.

This paper is concerned with estimating a probability density function of human skin color using a finite Gaussian mixture model whose parameters are estimated through the EM algorithm. There are no limitations regarding if person is black or white. Two important sections of Gaussian mixture are parameter estimation and determining the number of mixture components. Experimental results show tha...

Filtration and separation of a mixture of different fluid components are fundamental in a wide variety of applications. These processes are used in the purification of water, for example, along with the development of chemical reactors for food processing and other biological applications. Intrinsic in these systems is the goal to remove contaminants or other fluid components from one fluid, or...

Mixture Model Averaging for Clustering Yuhong Wei University of Guelph, 2012 Advisor: Dr. Paul D. McNicholas Model-based clustering is based on a finite mixture of distributions, where each mixture component corresponds to a different group, cluster, subpopulation, or part thereof. Gaussian mixture distributions are most often used. Criteria commonly used in choosing the number of components in...

WR182393, a guanidinoimidazolidinedione derivatives with potent causal prophylactic antimalarial activity by intramuscular injection, was previously prepared by treatment of chloroproguanil and diethyl oxalate, yielding a mixture of two closely related isomers. Poor solubility of the mixture made the separation and purification impossible. To overcome the separation problem, new and facile unam...

We study the effective polarity of an air/liquid-mixture interface by using interface-selective heterodyne-detected electronic sum frequency generation (HD-ESFG) and vibrational sum frequency generation (HD-VSFG) spectroscopies. With water and N,N-dimethylformamide (DMF) chosen as two components of the liquid mixture, the bulk polarity of the mixture is controlled nearly arbitrarily by the mixi...

Recently, various types of mixture models have been developed for data sets having a hierarchical or multilevel structure (see, e,g., [9, 12]). Most of these models include finite mixture distributions at multiple levels of a hierarchical structure. In these multilevel mixture models, selection of the number of mixture component is more complex than in standard mixture models because one has to...

A theory is proposed that combines the most basic features of conformal solution theory and scaled particle theory (SPT) . The treatment in essence provides a means for evaluating mixture properties from pure fluid data; however, two intermediate substances-the “infinitely polydisperse” (IP) mixture and the “one-and-a-half fluid”-are used to implement the mapping. Associated with the IP mixture...