نتایج جستجو برای: reactants distribution
تعداد نتایج: 612444 فیلتر نتایج به سال:
dimension di, while the rest of the d-dimensional space is occupied by identical mobile particles. The Smoluchowski rate theory suggests that the immobile reactants concentration, s(t), exhibits interesting behavior as a function of the codimension, d̄ ≡ d− di. This survival probability undergoes a survival-to-extinction transition at d̄c = 2. For d̄ < d̄c, a finite fraction of the immobile reactan...
We determined the CO oxidation rates for size-selected Ptn (n ∈ {3,7,10}) clusters deposited onto TiO2(110). In addition, we investigated the cluster morphologies and their mean sizes before and after the reaction. While the clusters are fairly stable upon annealing in ultrahigh vacuum up to 600 K, increasing the temperature while adsorbing either one of the two reactants leads to ripening alre...
a new synthesis of a-hydroxycarboxylates and 2-hydroxybenzoates based on the reaction of acetonides of a-hydroxycarboxylic acids and 2-hydroxybenzoic acid with sodium alkoxides in the corresponding alcohols as solvent is described. in general, decreasing the steric hindrance of the reactants and increasing the boiling points of alcohols increased the yields and decreased the required time for t...
introduction: elevated levels of crp are present among patients at risk for further first-ever myocardial infarction and stroke. it has been shown that after ischemic stroke, increased levels of crp are associated with unfavorable outcomes. methods: from 120 patients admitted to the emergency unit of our hospital with the diagnosis of stroke crp, d-dimer and ferritin level was measured and the ...
Chronic elevation of systemic levels of acute phase reactants and inflammatory cytokines found in patients with diabetes and the often-associated metabolic syndrome X (hypertriglyceridemia, low serum high density lipoprotein cholesterol, hypertension, and accelerated atherosclerosis) may be responsible for the increased incidence of cardiovascular problems in this population. Here we examine th...
A physic-mathematical model has been developed that is suitable for biosensors incorporating membranes and bisubstrate enzymes. The set of equations regarding the transport of reactants across the membrane, the bisubstrate enzymatic reaction, back diffusion of reactants and reaction products, are written down and simultaneously solved and transient response of the electrode is determined as...
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