Factors involved

It should be cautioned that the correctness of the factors involving z has not really been verified experimentally and that the algebraic forms involved are modelistic. Additional analyses have been made by Ruckenstein and Dadybur-jor[lll]. 

Apart from some numerical coefficients, the details of which we shall forgo, the required proportionality factor involves kT and the concentration of entanglement points. Multiplying Eq. (2.67) by these factors, we obtain... 

The Optimum level of gasoline octane is a complex function of a number of factors involving the customer as well as the automotive and petroleum... 

Aerosol Shampoos. These shampoos constitute a very small percentage of the market. They have been available in two versions, ie, Hquid foam types and dry spray forms. The Hquid foam type, despite its convenience and appealing appearance, did not attain high general use. Factors involved in its low acceptabiHty include not only higher product cost but also serious stabiHty issues with can corrosion. 

Exact design criteria on equipment for handling acetylene is not readily available because of the great number of factors involved. However, recommendations have been made concerning the equipment, piping, compressors, flash arresters, and proper materials (69,92—94). 

In the tissues of animals, most thiamine is found as its phosphorylated esteis (4—6) and is piedominandy bound to enzymes as the pyrophosphate (5), the active coen2yme form. As expected for a factor involved in carbohydrate metaboHsm, the highest concentrations ate generally found in organs with high activity, such as the heart, kidney, Hver, and brain. In humans this typically amounts to 1—8 p.g/g of wet tissue, with lesser amounts in the skeletal muscles (35). A typical healthy human body may contain about 30 mg of thiamine in all forms, about 40—50% of this being in the muscles owing to their bulk. Almost no excess is stored. Normal human blood contains about 90 ng/mL, mostly in the ted cells and leukocytes. A value below 40 ng/mL is considered indicative of a possible deficiency. Amounts and proportions in the tissues of other animal species vary widely (31,35). 

CastabEity is not to be confused with fluidity, which is the abEity of a molten aEoy to fEl a mold cavity iu every detaE. CastabEity is the ease with which an aEoy responds to ordinary foundry practice without undue attention to gating, risering, melting, sand conditions, and any other factors involved in producing sound castings. 

If the blending process is between two or more fluids with relatively low viscosity such that the blending is not affected by fluid shear rates, then the difference in blend time and circulation between small and large tanks is the only factor involved. However, if the blending involves wide disparities in the density of viscosity and surface tension between the various phases, then a certain level of shear rate may be required before blending can proceed to the required degree of uniformity. 

That the degree of comminution on its own is not the only factor involved in the kinetics-of the release of the active principles, but that evidently the nature and amount of the accompanying substances also play an essential part, has been demonstrated in the case of the sennosides in aqueous preparations (hot extractions and cold macerates) from senna fruits and senna leaves [3],... 

Most producers believe in the adage quality pays in terms of better reputation and sales, customer loyalty, lower reject rates, service and warranty costs. They should also realize that safety pays in terms of reducing the legal exposure and the tremendous costs that this can incur, both directly and indirectly, for example from compensation, legal fees, time and effort, increased insurance premiums, recalls and publicity (Wright, 1989). Few manufacturers understand all the cost factors involved, and many take a shortsighted view of the actual situation with regard to the costs of safety. 

Dimerization of the Ce-zinc cluster transcription factors involves an a-helical coiled coil in the dimerization region. Coiled coils, often called leucine zippers, are also found in a large group of transcription factors that do not contain zinc. The leucine zipper is made up of two a helices in a coiled coil with every seventh residue leucine or some other large hydrophobic residue, such as isoleucine or valine. Leucine zipper transcription factors (b/zip) include factors characterized by heterodimerization, for example Fos and Jun. The a-helical DNA-binding motifs of the heterodimers recognize quite different base sequences and are continous with the a helices of the zipper. 

The type of compressor selected sets the quality of design. The API-based compressor is generally regarded as a higher quality than a catalog blower. Most of the chapter to this point has attempted to emphasize the many factors involved in design. Quality of conformance is a measure of how well the compressor met the specification. One of these measures is the achievement of the desired run time. Another measure is the inspection for conformance of the parts to the drawings. 

Convective heat exchange coefficient A complicated factor involving the surface ge... 

We shall discuss the factors involved in the reverse order for practical reasons. 

This is our principal result for the rate of desorption from an adsorbate that remains in quasi-equihbrium throughout desorption. Noteworthy is the clear separation into a dynamic factor, the sticking coefficient S 6, T), and a thermodynamic factor involving single-particle partition functions and the chemical potential of the adsorbate. The sticking coefficient is a measure of the efficiency of energy transfer in adsorption. Since energy supply from the... 

Kletz, T. A. 1977. Unconfined vapor cloud explosions—an attempt to quantify some of the factors involved. AlChE Loss Prevention Symposium. Houston, TX. 1977. 

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