Alternative detailed analysis

Overall, the results are taken in support of the sequential (square-scheme) mechanism rather than the concerted alternative. Detailed analysis of the individual systems enabled the authors to distinguish which of the two possible square-scheme pathways was dominant. 

If the procedures were not regularly updated or were otherwise incorrect, or if training was inadequate, PI errors could occur. P2 errors would often arise as a result of misdiagnosing a situation, or if the entry conditions for executing a sequence of operations were ambiguous or difficult to assess and therefore the wrong procedure was selected. It is important to note that if a planning error occurs, then this implies that a detailed analysis needs to be conducted of the alternative course of action that could arise. 

In practice, the specific point at which the first phase ends and the second phase begins is not so distinct. Therefore, the development and screening of alternatives are discussed together to better reflect the interrelation of these efforts. Furthermore, in many instances, there is only a limited number of available options and it may not be necessary to screen alternatives prior to detailed analysis. 

During the detailed analysis, each alternative is assessed against the evaluation criteria. The results provide decision-makers with sufficient information to adequately compare the alternatives, select an appropriate remedy for a site, and demonstrate satisfaction of the CERCLA remedy selection requirements in the record of decision ... 

The procedure for a detailed analysis of alternatives can be generalized into the following steps14 ... 

This case example illustrates how the results of individual and comparative analyses of remedial alternatives may be presented in a feasibility study report. The study uses a U.S. EPA example12 that focuses on a detailed analysis of the alternatives that had been selected after screening. 

A promising alternative is to feed the conformations delivered by the MD simulation into a SOM so that the SOM can break the many conformations into a number of groups, thus allowing a more detailed analysis of the simulation data. 

A detailed analysis published for fuel-cell drive systems by Schirrmeister et al. (2002) showed a specific cost breakdown of the added value of a fuel-cell drive system powered by methanol (a methanol reformer was a reasonable alternative at that time)... 

In the third chapter, Hans Hirschmann and Kenneth R. Hanson provide a detailed analysis of the principles of stereochemical classification or factorization. In contrast to the system earlier proposed by Cahn, Ingold, and Prelog (and recently extended and modified by Prelog and Helmchen) featuring centers, axes, and planes of chirality, Hirschmann and Hanson here present an alternative scheme not limited to chiral structures. This scheme for the factorization of stereoisomerism uses as principal elements the center and line of stereoisomerism. Numerous examples are given. 

In a subsequent communication, Elliott and coworkers found that uniaxially oriented membranes swollen with ethanol/water mixtures could relax back to an almost isotropic state. In contrast, morphological relaxation was not observed for membranes swollen in water alone. While this relaxation behavior was attributed to the plasticization effect of ethanol on the fluorocarbon matrix of Nafion, no evidence of interaction between ethanol and the fluorocarbon backbone is presented. In light of the previous thermal relaxation studies of Moore and co-workers, an alternative explanation for this solvent induced relaxation may be that ethanol is more effective than water in weakening the electrostatic interactions and mobilizing the side chain elements. Clearly, a more detailed analysis of this phenomenon involving a dynamic mechanical and/ or spectroscopic analysis is needed to gain a detailed molecular level understanding of this relaxation process. 

The sensible approach to employing the polarity alternation concept is to be flexible. When applied correctly to a reactivity problem the failure of PAR should elicit a deeper and more detailed analysis. New facets of an organic system may be revealed. 

The radical CH2, with one electron less than NH2 (i.e., with no electrons in the lone pair orbital bj), might be expected to have ground and first excited states similar to NH2. Indeed, by using the flash photolysis of diazomethane (CH2N2), an absorption spectrum in the red region of the spectrum very similar to that of NH2 has been found.8,9 The observation of isotope shifts on substituting 13C or D, the presence of an intensity alternation, and the detailed analysis of the... 

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