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Operating procedures metrics

The procedure of DG calculations can be subdivided in three separated steps [119-121]. At first, holonomic matrices (see below for explanahon) with pairwise distance upper and lower limits are generated from the topology of the molecule of interest. These limits can be further restrained by NOE-derived distance information which are obtained from NMR experiments. In a second step, random distances within the upper and lower limit are selected and are stored in a metric matrix. This operation is called metrization. Finally, all distances are converted into a complex geometry by mathematical operations. Hereby, the matrix-based distance space is projected into a Gartesian coordinate space (embedding). [Pg.237]

The strategy document will describe scope of coverage for the metrics system, detailing what is included in the system and what is not, and will be used to guide development of detailed procedures for implementation and operation of the metrics system. [Pg.78]

Additional incident information can be collected and statistics created from the perspective of timeframe (day of week, time of day, month of year), the type of unit operation (manufacturing plant, supply chain, transportation), the state of operation (normal, startup, shutdown, other), or different cause types (faulty equipment design, corrosion, failure to follow procedure, etc.). This can create a number of additional metrics. X... [Pg.185]

Because acetic anhydride is more useful to the chemical industry than acetic acid, there was economic incentive to develop a process that would yield the anhydride directly without first producing the acid as a separate operation. By the early 1980s, Eastman Chemicals, in conjunction with Halcon Chemical Company, developed a procedure that provided acetic anhydride using technology similar to the Monsanto process, and since 1991 a plant run by Eastman has produced anhydride in excess of 500,000 metric tons per year.89 The Eastman-Halcon (E-H) operation amounts formally to inserting CO into the C-0 bond of methyl acetate according to equation 9.36.90... [Pg.363]

But we should not proceed without mentioning two other methods in order to arrive at workable and regular formulations. The first method is nowadays dubbed Direct Perturbation Theory (DPT) and guarantees a valid limiting procedure for 1/c —0 [43,44,47-51]. Here, it is very important to consider the non-relativistic limit of the metric (essentially the normalisation requirement) and of the operator itself separately. This is most conveniently achieved by formulating the Dirac equation in terms of a scaled small component c(f>. This approach will comprehensively be discussed in the article of Kutzelnigg in the next chapter and thus not further be described here. [Pg.639]

Recently Campos, Mendez, and Fort (CMF) have proposed a new equation that overcomes all these difficulties and is derived without the need to introduce ad hoc fractional derivative operators to obtain anomalous diffusion [66]. The authors assume that the procedure by O Shaughnessy and Procaccia can be adapted directly to the intrinsic metric of the fractal by writing the equation in terms of s and dg... [Pg.186]


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