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Important points to note

This must only be used when simplifying an expression for the overall rate. It must not be used in steady state equations because these contain the difference of two large terms, i.e. the rates of the two propagation steps, and this difference is of similar magnitude to the rates of initiation and termination. [Pg.221]


The important point to note here is that the gas-phase mass-transfer coefficient fcc depends principally upon the transport properties of the fluid (Nsc) 3nd the hydrodynamics of the particular system involved (Nrc). It also is important to recognize that specific mass-transfer correlations can be derived only in conjunction with the investigator s particular assumptions concerning the numerical values of the effective interfacial area a of the packing. [Pg.604]

The important point to note from this Example is that in a non-symmetrical laminate the behaviour is very complex. It can be seen that the effect of a simple uniaxial stress, or, is to produce strains and curvatures in all directions. This has relevance in a number of polymer processing situations because unbalanced cooling (for example) can result in layers which have different properties, across a moulding wall thickness. This is effectively a composite laminate structure which is likely to be non-symmetrical and complex behaviour can be expected when loading is applied. [Pg.225]

The series of LP solutions required for MILP problems can be solved efficiently by using one LP to initialize the next. An important point to note is that, in principle, a global optimum solution can be guaranteed in the same way as with LP problems. [Pg.51]

The important point to note is that these laws govern the collective behavior of the network over and above the physical laws which govern the behavior of each individual network element. [Pg.131]

No doubt ipso attack is also promoted here, and in some other of the dealkylations above, through the inhibition of normal electrophilic attack at positions in the ring which are flanked by massive alkyl groups. Perhaps the most important point to note about ipso... [Pg.162]

The photochemistry pattern is illustrated in 1. Figure 1 shows the V(C-H). of some of these species. The first striking observation is that" each V(C-H). is split, with some weaker features this behavior is related1 the rotation of CHD2 groups around the M-C bond and will be discussed elsewhere (J 3). For present purposes there are some important points to note. The mean positions of the v(C-HKg bands of the parent compounds CHD2Mn(CO) and... [Pg.115]

An important point to note here and elsewhere in the description of cell activity is that the particular nature of calcium biochemistry, including the availability of the element and its necessary rejection from the prokaryote cell, when linked to stimulated input and interaction with specific internal proteins of selected properties, made it uniquely suitable for the function as an elementary ionic fast in/out messenger. It was then capable of signalling to cell changes once cell size and organisation increased beyond the elementary level of a cell with one small, rapidly... [Pg.304]

In Tabel 10-5, we present the standard representation of this breakdown of the data. There are two important points to note about the results in this table first the data,... [Pg.65]

The above reaction scheme was established by a combination of uv-visible absorption and fluorescence, ir isotopic substitution, esr and kinetic measurements (37). The important point to note here is that in 02 rich Xe matrices, ground state Cu(2Sj/2) cannot avoid reactive encounters with 02 to form Cu(02)2 and Cu(02) dioxygen complexes,whereas it is proposed that the formation of CuO, Cu(03) and 03 in dilute 02/Xe matrices arises from the reaction of a long lived mobile excited state Cu(2D) with 02. On the other hand the reactions of photoexcited Ag(2P) with 02 are different (37), electron transfer being favoured to form Ag 02. ... [Pg.309]

The important point to note is that the AM remaining electrons in the final state atom, as well as the electrons in neighboring atoms, feel the presence of the... [Pg.60]

Studies on biotechnology purchase decisions that used the theory of planned behavior (Fishbein and Ajzen, 1975) generally yielded results that support consumers attitude toward biotechnology as an important determinant of purchase decisions. However, one important point to note is that the most important attitude in purchase decisions was the one toward the specific product in question, not the general attitude toward biotechnology. [Pg.133]

N.B. The important point to note is that, in favourable cases, the manner in which the DP depends on the monomer concentration can show unambiguously whether the propagation is a first- or a second-order reaction. This is very useful because often the evidence from rate measurements, especially the analysis of individual rate curves, may be uncertain and difficult to interpret. [Pg.143]

Chemical process design, as it is commonly known, typically starts with a general problem statement with respect to the chemical product that needs to be produced, its specifications that need to be matched, and the chemicals (raw materials) that may be used to produce it. Based on this information, a series of decisions and calculations are made at various stages of the design process to obtain first a conceptual process design, which is then further developed to obtain a final design, satisfying at the same time, a set of economic and process constraints. The important point to note here is that the identity of the chemical product and its desired qualities are known at the start but the process (flowsheet/operations) and its details are unknown. [Pg.2]

An important point to note is that this the above reaction produces lactate, not lactic acid. Nonetheless, protons are produced in glycolysis but in another reaction (Appendix 6.5). Consequently, the two end-products are lactate plus protons, which can be described as lactic acid. Despite this discussion, it can be argued that lactate dehydrogenase is not the terminal reaction of glycolysis, since the lactate plus protons have to be transported out of the cell into the interstitial space. This requires a transporter protein, which transports both lactate and protons across the plasma membrane and out of the cell. [Pg.101]

An important point to note is that the underfilm darkening is not associated with any fall off in film performance in terms of adhesion, cross-cut undercutting, blistering or exfoliation. [Pg.19]

The reagent can be used in stoichiometric amounts or generated more conveniently in situ, employing only catalytic amounts of tellurium, since the metal is continuously regenerated during the reaction. Important points to note are... [Pg.128]

An important point to note in a book on the analysis of drug impurities is that many of the techniques discussed do not necessarily directly measure drug impurities. Their relevance in the context of continuous processing is that they enable production of API of defined quality, and therefore impurity profile, for several reasons that have been discussed previously ... [Pg.251]

The important point to note here is that nearly all of the pre-ignition steps, including two endothermic reactions, take place in the vapour phase. Thus, if ignition is to occur at low pressures, sufficient heat energy must be available for a sufficient time period ... [Pg.27]

The important points to note are that often the vast majority of compounds are tested just once, at a single concentration, and the results are converted to a percentage inhibition. The result of this is that the error associated with any data point may be quite large and the dynamic range of the data is limited to essentially a range of 1-100. As will be discussed below, this places important constraints on the significant information that can be successfully extracted from HTS data. [Pg.87]

It can be seen, therefore, that on typical paste shrinkage in the region of 4000 microstrain, that some 30-40% of this could be accounted for by the sulfate component. An important point to note is that the sulfate reaction has a negative influence on shrinkage and, therefore, acts as a restraint to creep and shrinkage as the reaction proceeds. It was noted in an earlier section that the addition of a water-reducing admixture delays ettringite reactions and could be a possible mechanism by which the volume deformations are increased. [Pg.115]


See other pages where Important points to note is mentioned: [Pg.301]    [Pg.80]    [Pg.351]    [Pg.170]    [Pg.301]    [Pg.75]    [Pg.117]    [Pg.353]    [Pg.185]    [Pg.189]    [Pg.222]    [Pg.332]    [Pg.87]    [Pg.186]    [Pg.74]    [Pg.158]    [Pg.160]    [Pg.361]    [Pg.117]    [Pg.112]    [Pg.31]    [Pg.59]    [Pg.387]    [Pg.227]    [Pg.406]    [Pg.55]    [Pg.42]    [Pg.141]    [Pg.494]   


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