Approach to the Problem

There will, of course, be grounds for doubts, and controversy will emerge. The approach is new, and it will take time to demonstrate its efficacy. 

Data for hydrogen selenide are very sparse, and I doubt if there are any on hydrogen telluride. The R-lines for these for 20°C, for example, can be drawn with useful precision, and it is very probable that the N se and values for 1 atm for a number of liquids S will be disposed about the particular R-line in a way similar to 

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There are various approaches to the problem of coupling quantum degrees of freedom to classical degrees of freedom. The QCMD model is given by the following equations of motion ... 

The basic approach to the problem of estimating properties can be written in a very simple form that states that a molecular property P can be expressed as a function of the molecular structure C (Eq. (1)). 

Procedure. One approach to the problem is to select a value for a that is obviously too small and to increment it iteratively until the equation is satisfied. This is the method of program WIEN, where the initial value of x is taken as 1 (clearly, -E i < 1 as you can show with a hand calculator). 

One approach to the problem of the ri2 temi is a variational self-consistent field approximation. Our treatment here follows that by Rioux (1987), in which he starts... 

Our approach to the problem of gelation proceeds through two stages First we consider the probability that AA and BB polymerize until all chain segments are capped by an Aj- monomer then we consider the probability that these are connected together to form a network. The actual molecular processes occur at random and not in this sequence, but mathematical analysis is feasible if we consider the process in stages. As long as the same sort of structure results from both the random and the subdivided processes, the analysis is valid. 

To apply these ideas to solution nonideality, we consider a theory developed by Flory and Krigbaum. This is only one of several approaches to the problem, but it is one which can be readily outlined in terms of material we have already developed. We shall only sketch the highlights of the Flory-Krigbaum theory, since the details are complicated and might actually obscure the principal ideas. 

A novel approach to the problem of amiaoglycoside nephrotoxicity has been to search for compounds that can inhibit toxicity without compromising efficacy. A number of agents have been reported to reduce amiaoglycoside toxicity ia animal models the most extensively studied of these is sodium polyaspartate (103—107). 

Kaplan, S., 1989, Expert Information vs Expert Opinion Another Approach to the Problem of Eliciting/Combining/Using Expert Opinion in PRA, PSA-89, p. 593. 

Before discussing the kinds of kinetic information provided by potential energy surfaces we will briefly consider methods for calculating these surfaces, without going into detail, for theoretical calculations are outside the scope of this treatment. Detailed procedures are given by Eyring et ah There are three approaches to the problem. The most basic one is purely theoretical, in the sense that it uses only fundamental physical quantities, such as electronic charge. The next level is the semiempirical approach, which introduces experimental data into the calculations in a limited way. The third approach, the empirical one, makes extensive use of experimental results. 

The classical approach to the problem of characterizing the performance of a pump without including its dimensions was discussed by Addison, who proposed that a pump of standardized size will deliver energy at the rate of one horsepower when generating a head of one foot... 

O-isopropylidene derivative (57) must exist in pyridine solution in a conformation which favors anhydro-ring formation rather than elimination. Considerable degradation occurred when the 5-iodo derivative (63) was treated with silver fluoride in pyridine (36). The products, which were isolated in small yield, were identified as thymine and l-[2-(5-methylfuryl)]-thymine (65). This same compound (65) was formed in high yield when the 5 -mesylate 64 was treated with potassium tert-hx Xy -ate in dimethyl sulfoxide (16). The formation of 65 from 63 or 64 clearly involves the rearrangement of an intermediate 2, 4 -diene. In a different approach to the problem of introducing terminal unsaturation into pento-furanoid nucleosides, Robins and co-workers (32,37) have employed mild base catalyzed E2 elimination reactions. Thus, treatment of the 5 -tosylate (59) with potassium tert-butylate in tert-butyl alcohol afforded a high yield of the 4 -ene (60) (37). This reaction may proceed via the 2,5 ... 

An even simpler and perhaps more effective approach to the problem might be application of the resazurin test as applied in the milk industry for indirect estimation of bacterial population. Proctor and Greenlie (34) have suggested this application, and Wolford (38) has worked with it in a limited way. The test is based upon a color change involved in the reduction of the dye. The time required for reduction decreases with increase in bacterial numbers. Intensive investigation of this method and its application with respect to increasing its sensitivity, and correlation of reaction rates with bacterial population and quality characteristics of the product, might be of considerable value. 

The approach to the problem is to make the best analysis of the product requirements, including what at first appear to be intangible requirements, and then to determine what are the important elements in the design. Using these as the guide, several types of structural possibilities are examined with different materials to see if they meet the performance requirements of the application. The loads, the duration of the loads, the environment,... 

Oil and substitute resources such as coal are supposedly in limited supply (although our government reports we have enough coal for the next 250 years that includes its growth in use during that period), and it may well be that another approach to the problem is required. An example is different raw mate-... 

Currently, these tests are of no practical value to the designer and the only approach to the problem of scratch, mar, and abrasion resistance is to simulate actual performance needs. For optical purposes, a cast sheet in the allyl family of plastics known as CR39 has been used as a standard of comparison in evaluating scratch and mar resistance of a material. The CR39 is used for eye lenses and other optical products where the advantages of plastics are a consideration. Coatings have been developed for polycarbonate, acrylics, and other plastics that dramatically improve the scratch and mar resistance of these materials. 

This approach to the problem is purely theoretical, since this model is based on a characteristic stagnant film thickness which is difficult to estimate or to measure. In addition, this model does not give any information as to the value of A, which must be determined separately by some other method. As a result, it is impossible to estimate the total mass-transfer rate in the disperser with the aid of this model only. 

Equation (13) is valid for r/Nlp < 0.25 (Fig. 3). At much higher extension ratios, the force must increase indefinitely since the molecule is almost straightened out. The thermodynamic approach to the problem of coil stretching for a freely-jointed chain was considered by Treloar [32], who obtained the following expression for the stress-strain relationship when the two chain ends are kept a distance r apart ... 

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