Steps sequential

Planning is defined as the process of analysing each job so as to determine the nature of the job and the results desired specify the logical sequence of the job and apply humanpower and estimates for each sequential step Hst predeterminable material, tools, and special equipment and estimate the total cost to meet the required results. 

Mechanism. The general mechanism of effective sizing involves the foUowing sequential steps. (/) Efficient retention of the sizing agent in the... 

The massively parallel approach adopted in the Connection Machine has been termed data parallel. Whereas a uniprocessor must sequentially step through large amounts of data, a data parallel machine moves processors to the data. Aggregate memory to processor bandwidth in the Connection Machine is more than 700 megabytes per second. 

All current comparative modeling methods consist of four sequential steps (Fig. 2) [5,6]. The first step is to identify the proteins with known 3D structures that are related to the target sequence. The second step is to align them with the target sequence and pick those known structures that will be used as templates. The third step is to build the model... 

The sequential steps involved in commercial machines which employ reusable photoreceptors for generating xerox copies are shown in the figure - and further elucidated below. 

This expression, however, is not correct. The correct one is obtained by eliminating the cyclical pair, k2k-2[X ], from the denominator. Doing so, one obtains Eq. (4-63). Since the success fraction method is so useful in general, it is advantageous to learn how to extend it to such cases rather than abandon it in favor of much tedious algebra. Once one learns to recognize the extraneous term as the one with the pair of cyclical rate constants, it is easy to apply a correction. Problem 4.5 illustrates this. The number of denominator terms is equal to the number of sequential steps in the reaction scheme, which is three in the scheme to which Eq. (4-63) applies. 

The strong emphasis placed on concentration dependences in Chapters 2-5 was there for a reason. The algebraic form of the rate law reveals, in a straightforward manner, the elemental composition of the transition state—the atoms present and the net ionic charge, if any. This information is available for each of the elementary reactions that can become a rate-controlling step under the conditions studied. From the form of the rate law, one can deduce the number of steps in the scheme. In most cases, further information can be obtained about the pattern in which parallel and sequential steps are arranged. 

Abstract The entry of viruses into target cells involves a complex series of sequential steps, with opportunities for inhibition at every stage. Entry inhibitors exert their biological properties by inhibiting protein-protein interactions either within the viral envelope (Env) glycoproteins or between viral Env and host-cell receptors. The nature of resistance to entry inhibitors also differs from compounds inhibiting enzymatic targets due to their different modes of action and the relative variability in... 

The conversion of tyrosine to epinephrine requires four sequential steps (1) ring hydroxylation (2) decarboxylation (3) side chain hydroxylation to form norepinephrine and (4) N-methylation to form epinephrine. The biosynthetic pathway and the enzymes involved are illustrated in Figure 42-10. 

The catalytic reaction can be conveniently divided into a number of sequential steps, all of which impact on the overall efficiency of the reaction. First the reactants must diffuse to the catalyst surface the rate of diffusion depends on several factors including fluid density, viscosity and fluid flow rate. Whilst some reaction will take place at the external surface, the majority of reactants will need to diffuse into the internal pores. For a... 

Steady state and non steady state kinetic measurements suggest that methane carbon dioxide reforming proceeds in sequential steps combining dissociation and surface reaction of methane and CO2 During admission of pulses of methane on the supported Pt catalysts and on the oxide supports, methane decomposes into hydrogen and surface carbon The amount of CH, converted per pulse decreases drastically after the third pulse (this corresponds to about 2-3 molecules of CH< converted per Pt atom) indicating that the reaction stops when Pt is covered with (reactive) carbon CO2 is also concluded to dissociate under reaction conditions generating CO and adsorbed... 

Using the periodic DPT double-reference model, the reduction of adsorbed O2 (O2) was found to occur by two sequential steps ... 

Synthesis is the application of one or more reactions to the preparation of a particular target compound, and can pertain to a single-step transformation or to a number of sequential steps. The selection of a reaction or series of reactions for a synthesis involves making a judgment about the most effective possibility among the available options. There may be a number of possibilities for the synthesis of a particular compound. For example, in the course of learning about the reactions in Chapter 1 to 12, we will encounter a number of ways of making ketones, as outlined in the scheme that follows. 

The process objectives defined earlier must relate to the process routes. A process route essentially consists of several sequential steps with the ultimate aim of achieving the process objective. There are one or more of basic objectives, namely, separation, production of a compound intermediate, metal reduction, and metal refining. With a given starting source material the four basic objectives can be pursued singly or in combination to arrive at the ultimate aim. For example, if the ultimate aim is to prepare a concentrate for the market then it is only the separation that is required for reaching to the product. If, on the other hand, purified metal production is the ultimate aim then possibly all the four objectives have to be fulfilled. 

The Pourbaix-Ellingham diagram of the tantalum-carbon-oxygen (Ta-C-O) system indicates fewer sequential steps between the oxide and the metal as compared to the niobium-carbon-oxygen system ... 

As dispersion proceeds drops come into close contact with each other and may coalesce. Coalescence is commonly divided into three sequential steps (Chesters, 1991) collision or close approach of two droplets, drainage of the liquid between the two drops, and rupture of the film (see Fig. 26). 

Fig. 11 The influence of food on factors that affect the sequential steps leading to GIT drug absorption, systemic availability, and elimination. (Copyright 2000 Saguaro Technical Press, Inc., used with permission.)...

The aromatic hydrogenation reactions are reversible and at normal hydrotreating conditions, the equilibrium limits to achieve complete conversion. Low temperatures and higher pressures favor the aromatic saturation. The carbon atoms of a multi-ring system are hydrogenated in sequential steps, each one being equilibrium limited, as well. 

The method EBC patented essentially for achieving oil-water separation was based on hydrocyclones [267], In this design, the fact that an oil-loving biocatalyst such as Rhodococcus tends to partition at the oil-water interface was made use of. The separation was achieved by controlling the phase ratio and operating in sequential steps using multiple hydrocyclones. 

Finally, dendrimers have been synthesized using solid phase peptide synthesis resins, wherein the core is linked to the resin and the half-dendrimer (dendron) is built out from it in sequential steps (Marsh et al., 1996 Swali et al., 1997 Wells et al., 1998). The advantage of this method... 

These sequential steps generate the intermediate substituted tetrahydrofuran-2-ol, which is converted in the second sequence into the final product shown. 

We have barely introduced the vast area of synthetic coordination chemistry. The methods described show that a wide variety of techniques have been employed, and they may be employed in combination in sequential steps to develop creative synthetic routes. The comprehensive compilations listed in the suggested readings should be consulted for further study. Several journals in inorganic chemistry are at least partially devoted to synthesis of materials, so the field is growing at a rapid rate. 

Brodin, L., Low, P. and Shupliakov, O. Sequential steps in clathrin-mediated synaptic vesicle endocytosis. Curr. Opin. Neurobiol. 10 312-320, 2000. 

Fig. 5 Sequential steps involved in an immunoaffinity extraction procedure...

Chemical reaction on the surface. The reaction may proceed through one or more sequential steps in which different intermediates are formed. The intermediate with the highest energy profile represents the rate-limiting step. Once the reaction passes this barrier, the final product is formed. The kinetics of this step also depends exponentially on the temperature and the activation energy E4 is of the same order of magnitude as in step 3. 

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