Merits and Demerits

5 Merits and demerits of bleaching with peracetic acid The advantages of peracetic acid as a bleaching agent are  

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The merits and demerits of the many computer-simulation approaches to grain growth are critically analysed in a book chapter by Humphreys and Hatherly (1995), and the reader is referred to this to gain an appreciation of how alternative modelling strategies can be compared and evaluated. A still more recent and very clear critical comparison of the various modelling approaches is by Miodownik (2001). 

There was some argument in the literature over the relative merits and demerits of the JKR and the DMT theories [23-26], but the controversy has now been satisfactorily resolved. A critical comparison of the JKR and DMT theories can be obtained from the literature [23-30]. According to Tabor [23], JKR theory is valid when the dimensionless parameter given by Eq. 25 exceeds a value of about five. 

Many other techniques of measuring viscoelastic parameters, such as transient shear, creep and sinusoidally-varying shear, are available. A good description, together with the merits and demerits of each of these techniques, is available in Whorlow(19. ... 

Table 1.30 Merits and demerits of beehive oven practice.

However, it is worthwhile to have a comparison of the merits and demerits of photographic and photomultiplier detectors side-by-side as follows ... 

What is Radioimmunoassay (RIA) Discuss its merits and demerits articulately. 

The merits and demerits of flow measuring devices and calibration methods are discussed. 

Media pundits, think tanks, and consultants who are ideologically sympathetic to the pharmaceutical industry, or are economically beholden to it, have echoed and amplified the pharmaceutical industry s concerns over cross-national price discrimination in sometimes hysterical tones. It may be well to review briefly the merits and demerits of these critics sometimes vehement arguments, because their voices often are highly influential in government circles. 

There has been a debate over many years in management development circles over the relative merits and demerits of learning from on-the-Job experience as opposed to more structured and possibly more broadly educative off-the-Job learning. Caricaturing the debate somewhat, the issues reduce broadly to ... 

Until recently, the Pd- or Ni-catalyzed cyanation had been performed most frequently with metal cyanides containing alkali metals, such as Na and K21a. More recently, however, the use of Zn(CN)2 in conjugation with DMF has been reported to be a useful alternative216 (Scheme 83). Further delineation of the relative merits and demerits among various metal countercations appears to be desirable. 

Each of these methods has both merits and demerits. For example, the integration method can easily be used to test several well-known specific mechanisms. In more complicated cases the differential method may be useful, but this requires more data points. Analysis by the integration method can generally be summarized as follows. 

Information is defined as something that regardless of its form (description, rumor, etc.) and value to an individual (likes and dislikes, good and bad, merits and demerits, etc.) replaces uncertain knowledge with more certain knowledge. For example, the information that Italy won the FIFA World Cup 2006 when conveyed to an individual is done so regardless of whether the person is interested in soccer. 

Molecular orbital calculations of varying sophistication have been used to try to predict the relative stabilities of the W, S, and U conformers. The earliest using the EHMO method predicted that the U conformer is the most stable (70), but MNDO (74) suggests that the W form is of lowest energy for the parent C5H7 anion. Most of these calculations relate to the gaseous ion, but similar conclusions were reached by inclusion of lithium or BeH (71-73). The merits and demerits of the calculations are discussed by Dewar et al. (74). 

Seader and Henley (1998) provided a detailed account of the merits and demerits of different integration methods with typical conventional batch distillation examples. They have noted three particular issues with the integration methods applied in batch distillation calculations that require attention. These are the truncation error, stability and stiffness ratio. These will be briefly discussed in the following. 

The first mode of corrosion mitigation involves selection of material such as stainless steel rebar and the merits and demerits of this mode are detailed below. 

This [chemistry] society, ever mindful of the comforts of its members, prefaced the month of December with an instruction by Mr Young on the merits and demerits of alcohol in its many and varied forms. It was notable that none of the women were present. Perhaps, after the manner of their sex, they wished to convey the suggestion that they needed no instruction in these matters.43... 

That said, the established methods including those not mentioned above have their limits. PATFIT deals with discrete lifetimes. CONTIN [64, 65] and MELT provide continuous distribution of lifetimes. The merits and demerits of MELT and CONTIN were debated extensively [66-68]. Kansy developed an algorithm that can fit both, discrete lifetimes and log-normal distributions of lifetimes [69]. These challenges become increasingly severe as the range of lifetimes included in the data increases. To date, no method has addressed this issue satisfactorily. A number of approaches have been taken to overcome or circumvent the problems. However, their detailed discussion exceeds the scope of this chapter and will be presented elsewhere... 

Under such considerations of the merits and demerits of recycling plastic containers and packaging, with the liquefaction plant in the municipality where the bales are prepared will become an interesting enterprise for many local govermnents as a tool for activating the local economy and providing employment opportunities. 

The general initiation scheme proposed by Kennedy and coworkers and sketched out at the beginning of this discussion in Sect, b), predicts a direct cationogenic interaction between catalyst and added halide. Before examining the merits and demerits of this scheme, it is instructive to look briefly into the field of racemisation of a mmetric halides promoted by Lewis acids, since these studies reflect a situation similar to that under scrutiny. 

Experimental data can be presented per property or per system, both approaches having their merits and demerits. We shall mostly take the second one, to highlight special features of certain systems, but at the end make an exception by comparing lyotropic sequencles on different systems, considering that water structure-mediated interactions can be made most visible if double layers with differing affinities for water are compared. Double layers in the presence of larger ions and/or uncharged adsorbates will be deferred to sec. 3.12. 

In this chapter, we have reviewed some critical aspects of stoppers that are used for packaging of lyophilized biopharmaceuticals. We have listed the desirable attributes for lyophilization closures for use with protein formulations. We have discussed issues relating to preparation of stoppers. Two issues, siliconization and occluded water, have been dealt with in detail. Siliconization can be a cause of particulate generation and aggregation, as shown by our experience with recombinant tumor necrosis factor formulations. We have described methods of measurement of stopper-occluded moisture and discussed their relative merits and demerits. We further studied the kinetics of moisture removal from stoppers under selected conditions. Our approach to validation of moisture removal from stoppers has also been presented. Finally, we have discussed the usefulness of occluded moisture measurement for determination of moisture uptake by protein products under real... 

The unidirectional solidification method has both merits and demerits. Controlling the process is a key issue for achieving solidification process that can produces solar cells with high conversion efficiency. Numerical modeling is important for realizing such a process with optimization. A 3D global model and code were developed for analyzing 3D features of a unidirectional solidification process with square crucibles. A 2D/3D mixed discretization scheme... 

Merits and demerits associated with analytical validation in the QC laboratory... 

Summary After considering various merits and demerits of method it may be concluded that this method may be suitable for teaching in higher classes (XI, XII) where we aim to cover the prescribed syllabus quickly. In these classes this method can be used successfully for imparting factual knowledge, introducing some new and difficult topics, make generalisation... 

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