نتایج جستجو برای: multicomponent
تعداد نتایج: 9985 فیلتر نتایج به سال:
background: designing intervention based on health-care settings resources and patient acceptability is potentially important in the prevention of high blood pressure (bp) and other risk factors of cardiovascular disease. to explain a multicenter randomized controlled trial that is designed to examine the effects of the multicomponent lifestyle modification program on bp. materials and methods:...
A convex variational formulation is proposed to solve multicomponent signal processing problems in Hilbert spaces. The cost function consists of a separable term, in which each component is modeled through its own potential, and of a coupling term, in which constraints on linear transformations of the components are penalized with smooth functionals. An algorithm with guaranteed weak convergenc...
This paper deals with the multicomponent nature of gas turbine fuels under high-pressure conditions. The study is motivated by the consideration that the droplet submodels that are currently employed in spray codes for predicting gas turbine combustor flows do not adequately incorporate the multicomponent fuel and high-pressure effects. The quasisteady multicomponent droplet model has been empl...
Substituted 2, 4- diphenyl quinolines were synthesized by a multicomponent domino reaction of anilines, aldehydes and terminal aryl alkynes. The synthetic pathway involves the formation of an imine, followed by the intermolecular addition of an alkyne to the imine. This intermediate immediately undergoes ring closure and oxidative aromatization. The reaction is catalyzed by natural kaolin, a st...
In this paper we discuss upscaling of immiscible multiphase and miscible multicomponent flow and transport in heterogeneous porous media. The discussion presented in the paper summarizes the results of in Upscaled Modeling in Multiphase Flow Applications by Ginting et al. (2004) and in Upscaling of Multiphase and Multicomponent Flow by Ginting et al. (2006). Perturbation approaches are used to ...
A new analysis is presented of the relations between multicomponent friction coefficients and hydration numbers which describe non-ionic and multicomponent solutes transport in membranes in the framework of generalized Spiegler-Kedem-Katchalsky frictional model equations. In the framework of this model the expressions linking the permeability parameters of the membrane (Lp, sigma, omegaik) with...
Diffusion Weighted Images (DWI) normally shows a low Signal to Noise Ratio (SNR) due to the presence of noise from the measurement process that complicates and biases the estimation of quantitative diffusion parameters. In this paper, a new denoising methodology is proposed that takes into consideration the multicomponent nature of multi-directional DWI datasets such as those employed in diffus...
Regulation of both transcription and RNA splicing requires enhancer elements, that is, &-acting DNA or RNA sequences that promote the activities of linked promoters or splice sites, respectively. Both types of enhancer associate with regulatory proteins to form multicomponent enhancer complexes that recruit the necessary enzymatic machinery to promoter or splice site recognition sequences. This...
Tetraarylpyrene H that typifies a host system with three distinct domains for guest inclusion in the solid state is found to include different aromatic guests in the lattice and crystallize as a multicomponent molecular crystal. It is found to exhibit site-selective inclusion of the guests in that the large-sized guests such as biphenyl, anthracene, [2.2]paracyclophane, fluorene and pyrene are ...
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