نتایج جستجو برای: mixture substance
تعداد نتایج: 296333 فیلتر نتایج به سال:
In thermodynamically characterizing a mixture comprising finite number of molecules, we consider two kinds protocol for producing from pure substance. The first is single alchemical operation, whereas the second series processes with feedback control in information thermodynamics and conventional mixing semipermeable membranes. A comparison numerically determined free-energy changes provides co...
Feulgen and Bersin (1) obtained from the hydrolysis products of the acet>al phospholipide present in muscle a mixture of thiosemicarbazones. They suggested that these thiosemicarbazones are derivatives of pahnitic and stearic aldehydes, although t,hey gave no analytical data supporting this view. Anchel and Waelsch (2) obtained from hydrolysates of lipide mixtures from different tissues, includ...
The Aristotelian distinction between actual and potential presence of a substance in a mixture forms part of a conception of mixture which stands in contrast to atomist and Stoic theories as propounded by the ancients. But the central ideas on which these theories are built needn’t be combined and opposed to one another in precisely the ways envisaged by these ancient theories. This is well-ill...
The embryotoxicity of an artificial mixture of 18 polycyclic aromatic hydrocarbons (PAHs) was tested by injection into the yolk sacs of eggs of four avian species: chicken Gallus domesticus, turkey Meleagris gallopavo, domestic duck Anas platyrhynchos and common eider Somateria mollissima. A dose of 2.0 mg kg egg(-1) of the PAH mixture increased the mortality among the embryos of all four speci...
background : the existing evidence about the clinical situations of the bipolar patients with opioid dependence is scarce. the present study was carried out to compare the clinical features and course of the bipolar disorder type i regarding the two subgroups of opioid dependent and non-dependent. methods : there were 178 adult patients with bipolar disorder type i consecutively referred to the...
Abstract We have extended the existing two-dimensional rigid solid phase benchmark for binary substance with motion in present paper. Incompressible laminar Newtonian flow is assumed, and a standard mixture formulation used mass, momentum, energy, solute transport. A coherency model accounts free-floating grains, assuming that velocity proportional to liquid fraction. The lever rule describe ma...
Ecological approach to transport including the fuel which is used in combustion engines involves a necessity of alternative solution application. The study shows test result analysis amount exhaust gases affecting natural environment. tests were performed for 81W self-ignition engine with direct injection. experiment was conducted mixture containing 70% diesel oil 30% fatty acid methyl esters. ...
A chemical method has been devised for the quantitative determination of plasma antithrombin. A concentrate of antithrombin has been prepared from plasma. It also contains heparin cofactor activity. The two distinct activities could not be separated and may quite possibly be the properties of a single substance. When the concentrate is combined with heparin the capacity of the concentmte to des...
Rhodamine B, a fluorescent substance, was used as a tracer to investigate in vitro early microleakage from around amalgam restorations in machinable mica glass-ceramic after thermal stress. Five types of amalgam, i.e., low-copper spherical, low-copper lathe-cut, high-copper admixture, high-copper lathe-cut, and high-copper spherical, were examined in the present study. The results indicated tha...
Many scholars have used experimental research methods to conduct extensive on the impact energy release behavior of Polytetrafluoroethylene(PTFE)/Al reactive materials. However, in numerical simulation, PTFE/Al still lacks calculation parameters behavior. In order obtain simulation ignition, Hill mixture law was calculate material (mass ratio 73.5/26.5), and according Hugoniot curve γ state equ...
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