Looseness Factor

NMR data and potentiaUy mass spectrometry, and with N chemical shifts in hand, it is possible to search the ACD/NNMR database using a number of flexible searches to identify potential hits or potential classes of compounds that match the experimental data. Various options can be set in the search interface (see Fig. 12). These include the Looseness Factor, the Minimum Number of Query Shifts, and the Hit Quahty Index (HQI). 

The Looseness Factor is the deviation allowed around each chemical shift during the search. The Minimum Number of Query Shifts to match is the number that should be found during a search. For example, if, in the Enter Query Shifts field, a fist of shifts is entered and the minimum to match is 2, then the program will find aU the records containing at least two chemical shifts from this list. The option to sort the results by the HQI based on minimal distance orders the results such that the best matches are hsted first, i.e., with the highest HQI. 

The discrepancy between the pore area or the core area on the one hand and the BET area on the other is proportionately larger with silica than with alumina, particularly at the higher degrees of compaction. The fact that silica is a softer material than alumina, and the marked reduction In the BET area of the compact as compared with that of the loose material, indicates a considerable distortion of the particles, with consequent departure of the pore shape from the ideal of interstices between spheres. The factor R for cylinders (p. 171), used in the conversion to pore area in the absence of a better alternative, is therefore at best a crude approximation. 

The factor containing r increases with increasing r and reflects the fact that there are more locations to place the loose chain end within larger spherical shells, but. ... 

Prevailing interest rates probably tend to reflect an estimate of future inflation and contain a component that can be attributed loosely to inflationary expectations. However, the classical treatment is to assume that an inflation-free interest rate, r and average inflation rate, r, over the project lifetime can be identified. A discount factor (1 + r) can be modified (25) so that... 

Since the Wenner rod is mechanically somewhat delicate, it is only used in loose soils or in bore holes. For all measuring rods, the specific soil resistivity is equal to the product of the measured ac resistance and the shape factor Fq, which is determined empirically. 

There are many materials containing water of crystallization that simply cannot be dried under ordinary conditions. These materials would loose all or a portion of this water. Under such widely varying conditions drying must be accomplished in a drier that takes into consideration the rate of drying, the condition of the drying medium, and the nature of the exposed surfaces of the material. Each of these factors is complex and requires careful engineering. 

Bulk factor Ratio of the volume of loose molding compound to the... 

The product crystals were agglomerates of needles or dendrites. Loose floes of dendroid strontium carbonate are compacted by agitation, which is an important factor in controlling the habit of product particles. Semi-batch operation produces larger particles compared to batch or continuous operation. 

This example of aluminium illustrates the importance of the protective him, and hlms that are hard, dense and adherent will provide better protection than those that are loosely adherent or that are brittle and therefore crack and spall when the metal is subjected to stress. The ability of the metal to reform a protective him is highly important and metals like titanium and tantalum that are readily passivated are more resistant to erosion-corrosion than copper, brass, lead and some of the stainless steels. There is some evidence that the hardness of a metal is a signihcant factor in resistance to erosion-corrosion, but since alloying to increase hardness will also affect the chemical properties of the alloy it is difficult to separate these two factors. Thus althou copper is highly susceptible to impingement attack its resistance increases with increase in zinc content, with a corresponding increase in hardness. However, the increase in resistance to attack is due to the formation of a more protective him rather than to an increase in hardness. 

Experiment shows that heat is absorbed as iodine dissolves. The regular, ideally packed iodine crystal gives an iodine molecule a lower potential energy than does the random and loosely packed solvent environment. We see that the second factor, tendency toward minimum energy, favors precipitation and growth of the crystal. 

What is a tight or a loose transition state How can one infer the nature of a transition state from the value of the pre-exponential factor ... 

Polymorphonuclear leucocytes (PMNs) employ a system comprising myeloperoxidase, hydrogen peroxide, and a halide factor to kill microorganisms and tumour cells. This process is sometimes loosely called the respiratory burst , which refers to the sudden rise in oxygen consumption by the phagocytosing neutrophils that is independent of the mitochondrial electron transport chain. 

PLS has been introduced in the chemometrics literature as an algorithm with the claim that it finds simultaneously important and related components of X and of Y. Hence the alternative explanation of the acronym PLS Projection to Latent Structure. The PLS factors can loosely be seen as modified principal components. The deviation from the PCA factors is needed to improve the correlation at the cost of some decrease in the variance of the factors. The PLS algorithm effectively mixes two PCA computations, one for X and one for Y, using the NIPALS algorithm. It is assumed that X and Y have been column-centred as usual. The basic NIPALS algorithm can best be demonstrated as an easy way to calculate the singular vectors of a matrix, viz. via the simple iterative sequence (see Section 31.4.1) ... 

Avoid skin trauma. Sunburns can induce a flare-up of psoriasis. Sunscreens with a sun protection factor of at least 15 should be routinely used when outdoors often a sun protection factor of 30 is recommended. Avoid scratching the skin, which could lead to excoriations and exacerbate psoriasis. Loose-fitting cotton garments should be worn to minimize skin irritation. 

The compound can be produced with any arbitrary PCM and can also be brought into any arbitrary form e.g. by injection molding. The final result has a similar volumetric composition as the PCM-graphite matrix, which is 10 vol. % graphite, 80 vol. % PCM and 10 vol. % air. The thermal conductivity however is only about 4-5 W/m K due to the loose contact between the graphite particles in the compound. Nevertheless, compared to the pure PCM, the thermal conductivity is still enhanced by a factor of 5-20. 

It should be noted that these can also be caused by other problems besides tank leakage, such as leaking valves, loose fittings, or other factors. 

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