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Levels of success

Numerous reports of comparable levels of success in correlating adhesion performance with the Scatchard-Hildebrand solubility parameters can be found in the literature [116,120-127], but failures of this approach have also been documented [128-132J. Particularly revealing are cases in which failure was attributed to the inability of the Scatchard-Hildebrand solubility parameter to adequately account for donor-acceptor (acid-base) interactions [130,132]. Useful reviews of the use of solubility parameters for choosing block copolymer compatibilizers have been prepared by Ohm [133] and by Gaylord [134]. General reviews of the use of solubility parameters in polymer science have been given by Barton [135], Van Krevelen [114], and Hansen [136]. [Pg.54]

Dispersed Inhibited Systems. Dispersed inhibitive fluids attempt to combine the use of dispersed clays and deflocculants to derive the fundamental properties of viscosity and fluid loss with other features that will limit or inhibit the hydration of the formation and cuttings. It will be realized these functions are in opposition therefore the ability of these systems to provide a high level of shale inhibition is limited. However, they have achieved a high level of success and in... [Pg.667]

Cough is currently a huge unmet clinical need, as none of the currently available treatments are reliably effective [2]. However, there are many treatments which are currently used, with variable levels of success. In addition, if it is caused by another condition, such as gastro-oesophageal reflux disease, then treatment of that may reduce cough. [Pg.194]

Evaluation of the above route against our initial target objectives for the synthesis of taranabant indicated a high level of success, not just for the primary objectives of removing the tin chemistry and chiral chromatography, but for a number of other process improvements (Table 9.2). Of particular note was that the three crystalline intermediates were key for purification, first the phenethylamine salt 12 for the classical resolution, secondly the HC1 salt of amine 2 allowed for upgrade of diastereomeric purity, and finally the API allowed for upgrade of enantiomeric purity via initial removal of racemic material. [Pg.250]

Pheromones are used primarily for monitoring pest populations, but their use as pest suppression tools has also been proposed. These alternative uses include mass trapping, mating disruption, and lure and kill. Although these approaches have been tried with varying levels of success in field and orchard crop systems, they have had limited application for the management of stored-product insects. [Pg.273]

Similar work was performed by Maquelin et al.6 in 2000. They used con-focal Raman microspectroscopy to obtain spectra directly from microbial microcolonies on solid culture medium. The spectra were obtained after 6 h of culmring and were of most commonly encountered organisms. While depth studies showed varying quantitative levels of success, the qualitative (identification) of various bacterial strains was deemed a success. [Pg.385]

Physicians also know that aspirin can have varying levels of success in treating pain, fever, and other conditions, such that low dosages are very effective in some individuals and not at all effective in others. Also, some patients may experience undesirable or dangerous side effects when they use aspirin. [Pg.85]

Duplex stainless steels. Duplex stainless steels have provided a fruitful area for CALPHAD calculations and have been an example of where high levels of success have been achieved for practical materials. An early study (Hayes 1985) was able to demonstrate that reasonable predictions for amounts of austenite could be obtained for a variety of different duplex stainless steels, demonstrating the... [Pg.352]

In recent years, two different approaches, deterministic [9,19] and stochastic [10,20], have been used with a good level of success to model the radiation chemistry of water. Each approach leads to reasonable agreement between calculated results and experimental data obtained for a wide range of LET from room temperature up toca. 300°C [9,10]. There are, however, fundamental differences between the two models. The deterministic model is based on the concept of an average spur [8,9,19,23] at the end of the physicochemical stage (ca. 10 sec), which contains the products of processes (I), (II), (III), (IV), and (V) in certain yields and spatial distributions, and in thermal equilibrium with the liquid. For low LET... [Pg.335]

An extension to aliphatic imines gave a certain level of success. The cyclohexyl-derived precursor 26 was successfully transformed into the corresponding amine 27 in 72% ee (Scheme 2.1.3.8). [Pg.209]

Since an inherent goal of any business is to be profitable, we can view profitability ratios as measures of overall success in the daily operations of a business. More specifically, profitability ratios provide a method to measure the overall financial success of a company. Examining profitability ratios allows managers to assess the company s level of success in generating profits. The most commonly used profitability ratios are the gross profit margin and the net profit margin. [Pg.253]

Flow processes constitute a major mechanism of separative transport. Furthermore, the particular nature of flow—its magnitude, cross sectional distribution, origin, and limits—is largely responsible for the level of success in many attempts at separation. [Pg.55]

The copper-catalyzed conjugate addition reaction of organozinc reagents has reached a prominent level of success by the development of sophisticated chiral phosphorus ligands. Nickel catalysts have also been surveyed by several groups. [Pg.126]

However, studies using the second kind of target do not elicit similar levels of success. For example, when 4- to 5-year-old preschoolers were asked to place colored stickers on an aligned plan map of their familiar... [Pg.62]

No one could introduce this new book better than my old friend Professor Felix Gutmann, of Sydney, Australia. For more than twenty years, we have been together often in Nice, in Sydney, in Munich, and in Los Angeles. Felix Gutmann is co-author, with Lawrence Lyons of Brisbane, Australia, of a most remarkable volume, Organic Semiconductors, published in 1967 by John Wiley Sons, Inc., New York. This monumental book has received considerable support in the scientific community, and I have seen this book in many solid-state physics and chemistry laboratories and in libraries throughout the world. I hope that the present volume will enjoy the same level of success. [Pg.862]


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See also in sourсe #XX -- [ Pg.355 ]




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