Weights, types

FIG. 21-34 Loss-of-weight-type scale used with a hag-packaging machine for non-free-flowing products. (Coutiesy of H. K Henderson IndusMes, Inc., Caldwell,... 

Neoprene WHV-A. It is a non-peptizable and mercaptan-modified polychloro-prene elastomer. It is a slow-crystallizing, high molecular weight type and contains only 85% trans-, 4 structure. It is generally used in blends with low molecular weight crystallizing polychloroprene types to increase solution viscosity. 

Dry feeding requirements are similar to those for dry alum except that belt-type feeders are rarely used because of their open type of construction. Closed construction, as found in the volumetric and loss-in-weight-type feeders, generally... 

FIGURE 20.6 DRI chromatograms of partially hydrolyzed PVA (low molecular weight type) using TSK-PW columns. 

Figure 7-35. Dead weight type pressure and vacuum relief valve for low pressure storage vessels. By permission, The Protectoseal Co.

The middle gauge cock is located at the boiler NOWL. Boilers operating at more than 250 psig have either two gauges or one gauge and an electric or electronic level indicator. Low water alarms are either float types or weight types. 

In the gas phase species are isolated, far from each other. It follows that their behaviour is not influenced by solvation, as occurs in solution, or by reticular forces, as in the crystalline state. Thus, the gas phase allows the study of the intrinsic properties of a given species, that are only dependent on its chemico-physical properties, i.e. its molecular weight, type of atoms (C, N, O,...) involved, connections between them, etc. 

In an investigation by the U.S. Bureau of Mines1141, in which a drop weight type of crusher was used, it was found that the increase in surface was directly proportional to the input of energy and that the rate of application of the load was an important factor. 

The apparent efficiency of the size reduction operation depends on the type of equipment used. Thus, for instance, a ball mill is rather less efficient than a drop weight type of crusher because of the ineffective collisions that take place in the ball mill. 

In particular, EVA waxes refer generally to oligomeric polymer compounds. They are prepared by the copolymerization of ethylene monomers and vinyl acetate monomers in the same way as the high molecular weight types. 

Surfactant Classification Average Molecular Weight Type... 

PAHs can be further categorized as low and high molecular weight types (LMW and HMW) since the distribution and transport patterns of the two groups are distinct due to vapor pressure differences. 

Superplasticizer type Super- p/ostidzer AEA (ml kg of cement) W/c ratio by weight Type 1 cement (kg m 3) FACT Entrained air (%) Slump (mm) Density fkg m 3) f c at 28 days f c at 63 days (MPa) Stress applied Stress-strain rotio Test creep strain (in. jin x /0p"4)t... 

Other, less accurate methods (1-3% FS) of solids flow measurement include the impulse and the accelerator flowmeters. In the loss-in-weight-type measurement, the total weight of the supply tank is measured and that signal is differentiated by time. The rate at which the total weight is dropping is the mass flow from the tank. These systems do not provide high precision (1% AF over a 10 1 range), but are suited for the measurement of hard-to-handle process flows because they do not need physical contact with the process stream. 

A5. Agnello, V., Koffler, D., Eisenberg, J. W., Winchester, R. J., and Kunkel, H. G., Clq precipitins in the sera of patients with systemic lupus erythematosus and other hypo-complementemic states Characterization of high and low molecular weight types. J. Exp. Med. 134, 228s-241s (1971). 

Varies in molecular weight from n = 2 to 7. Higher-molecular-weight types provide greater flexibility. 

Instruction E. Product 17. The following substances are used in the process of Instruction B 35 kg. Levapren 450 115 kg. vinyl chloride 150 kg. water plus 1.5 kg. methyl cellulose 50 grams azodiisobutyronitrile. Polymerization is carried out for 13 hours at 61 °C. The bead polymer obtained has a PVC content of 73%. Product 16 was made according to Instruction E, using a low molecular weight type of Levapren (molecular weight ca. 3 X 104, 43.5% vinyl acetate). The bead polymer obtained has a PVC content of 75%. 

Separating a whole sample of a coal liquid or shale oil into classes poses special problems since these materials contain high concentrations of heteroatomic species compared with natural petroleums. Many of these compounds are quite polar and can cause emulsification, precipitation, and may even react to produce artifactual compounds at some stage during a separation procedure. Many liquid chromatographic techniques have been useful in class separations and analyses of petroleums. More often, these have been applied to particular analytical scale operations with fossil-derived liquids. The most common applications are for aromatic-aliphatic and molecular weight types of separations. 

Two types of soluble NADH dehydrogenase preparations are also currently studied. The high molecular weight (Type I) NADH dehydrogenase [282] is in many respects similar to Complex I, but lacks phospholipid and ubiquinone and does not catalyse rotenone-sensitive reduction of added ubiquinone-1. In addition, it has a somewhat different content of non-haem Fe and acid-labile S per FMN. 

The low molecular weight (Type II) NADH dehydrogenase is a subcomplex of the former [283,284], and may be prepared from Complex I by treatment with chao-tropic agents [285]. Type II dehydrogenase catalyses oxidation of NADH by several acceptors such as cytochrome c, ubiquinone-1 and menadione. It contains approx, four non-haem Fe and four acid-labile S/FMN, and has a molecular weight between 70 and 80000. 

Pre-cracked specimens were tested in three point bending (mode I) at room temperature and at Vo =1 m/s using a falling weight type machine Fractovis 6789 by Ceast. 

By combining epoxies of different molecular weight, type and reactivity with a variety of different curing agents one has the possibility to formulate two-component systems for nearly any application in civil engineering or the building industry. Table 3.1 outlines the properties, products and application areas of epoxy systems. 

Type-11 diabetes meilitus is defined and classified as non-insulin-dependent, although many patients receive insulin to improve their glycaemic control there is a relative deficit in insulin-secretory capacity. Maturity-onset diabetes of the young (MODY) and gestational diabetes are both variants of Type-II diabetes meilitus. There are two subgroups of Type-II normal-weight type Ila and obese-type lib. 

Metformin used as monotherapy reduced plasma glucose levels in normal-weight Type-II diabetics considerably (172 to 103 mg per 100 ml), whereas serum insulin was unchanged over a 3 month period (Jackson et al., 1987). The hypoglycaemic action of metformin became fully effective within 2-3 weeks of treatment. Clinical studies point out that gastrointestinal side effects can be avoided if medication is started slowly and taken postprandially (Fig. 25). 

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