Principal part

The principal part of the integral is taken and the integration must be done over all frequencies. In practice, the integration is often tenninated outside of the frequency range of interest. Once the frill dielectric fiinction is known, the reflectivity of the solid can be computed. 

High purity hexafluorozirconic acid and its salts are produced by Advance Research Chemicals of the United States, and Akita and Moritta of Japan. The technical-grade green-colored material is suppHed by Cabot Corp. of the United States. In 1993, the U.S. market for fluorozirconic acid was about 250,000 kg/yr the world market was less than 500,000 kg/yr. A principal part of this production is consumed by the wool, garment, and upholstery industries. The 1993 price varied between 2.4 to 6.6/kg depending on the quaUty and quantity required. Potassium fluorozirconate [16923-95-8], K ZrF, is commercially important the world market is about 750,000 kg/yr. The most important appHcation is as a fire-retardant material in the wool (qv) industry, for the manufacture of garments, upholstery for aeroplane industry, and children s clothes (see Flame retardants). The 1993 unit price was between 5.0 and 6.6/kg. 

Water. Water mains should be connected to plant fire mains at two or more poiats, so that a sufficient water supply can be deHvered ia case of emergency. The plant loop and its branches should be adequately valved so that a break can be isolated without affecting a principal part of the system. If there is any question of maintaining adequate pressure, suitable booster pumps should be iastaHed. Any connection made to potable water for process water or cooling water must be made ia such a manner that there can be no backflow of possibly contaminated water check valves alone are not sufficient. The municipal supply should faH freely iato a tank from which the water is pumped for process purposes, or commercially available and approved backflow preventers should be used. 

Fig. 32. Schematic of the principal parts of the Laray falling rod viscometer (197). The rod moves through the cyliiidrical hole ia the outer cylinder. During measurements there is a thin layer of fluid in the gap between the rod and the cylinder. The photocells are used to time the motion of the rod.

The use of calcium carbonate in paint, paper, and plastics make up the principal part of the market. In the paper industry calcium carbonate products find two uses as a filler in the papermaking process and as a part of the coating on paper. 

Although hydration under hydrothermal conditions may be rapid, metastable iatermediate phases tend to form, and final equiUbria may not be reached for months at 100—200°C, or weeks at even higher temperatures. Hence, the temperatures of formation given ia Table 6 iadicate the conditions under saturated steam pressure that may be expected to yield appreciable quantities of the compound, although it may not be the most stable phase at the given temperature. The compounds are Hsted ia order of decreasiag basicity, or lime/siHca ratio. Reaction mixtures having ratios C S = 1 yield xonotHte at 150—400°C. Intermediate phases of C—S—H (I), C—S—H (II), and crystalline tobermorite ate formed ia succession. Tobermorite (1.13 nm) appears to persist indefinitely under hydrothermal conditions at 110—140°C it is a principal part of the biader ia many autoclaved cement—silica and lime—silica products. 

Nearly all of the benzal chloride produced is consumed in the manufacture of benzaldehyde. Benzaldehyde (qv) is used in the manufacture of perfume and flavor chemicals, dyes, and pharmaceuticals. The principal part of benzotrichloride production is used in the manufacture of benzoyl chloride (see Benzoic acid). Lesser amounts are consumed in the manufacture of benzotrifluoride, as a dyestuff intermediate, and in producing hydroxybenzophenone ultraviolet light stabilizers. Benzotrifluoride is an important intermediate in the manufacture of herbicides, pharmaceuticals, antimicrobial agents, and the lampreycide, 4-nitro-3-(trifluorometh5l)phenol [88-30-2]. 

The final factor influencing the stabiHty of these three-phase emulsions is probably the most important one. Small changes in emulsifier concentration lead to drastic changes in the amounts of the three phases. As an example, consider the points A to C in Figure 16. At point A, with 2% emulsifier, 49% water, and 49% aqueous phase, 50% oil and 50% aqueous phase are the only phases present. At point B the emulsifier concentration has been increased to 4%. Now the oil phase constitutes 47% of the total and the aqueous phase is reduced to 29% the remaining 24% is a Hquid crystalline phase. The importance of these numbers is best perceived by a calculation of thickness of the protective layer of the emulsifier (point A) and of the Hquid crystal (point B). The added surfactant, which at 2% would add a protective film of only 0.07 p.m to emulsion droplets of 5 p.m if all of it were adsorbed, has now been transformed to 24% of a viscous phase. This phase would form a very viscous film 0.85 p.m thick. The protective coating is more than 10 times thicker than one from the surfactant alone because the thick viscous film contains only 7% emulsifier the rest is 75% water and 18% oil. At point C, the aqueous phase has now disappeared, and the entire emulsion consists of 42.3% oil and 57.5% Hquid crystalline phase. The stabilizing phase is now the principal part of the emulsion. 

Tube Bundle The principal parts of the tube bundle are the finned tubes and the header. Most commonly used is the plug header, which is a welded box that is illustrated in Fig. 11-44. The finned tubes are described in a subsequent paragraph. The components of a tube bundle are identified in the figure. 

The mutual electrostatic repulsion of the electrons and the Pauli repulsion between electrons having the same spin. The Pauli repulsion contributes the principal part of the repulsion. It is based on the fact that two electrons having the same spin cannot share the same space. Pauli repulsion can only be explained by quantum mechanics, and it eludes simple model conceptions. 

The scanning tunneling microscope (STM) is an excellent device to obtain topographic images of an electrode surface [1], The principal part of this apparatus is a metal tip with a very fine point (see Fig. 15.1), which can be moved in all three directions of space with the aid of piezoelectric crystals. All but the very end of the tip is insulated from the solution in order to avoid tip currents due to unwanted electrochemical reactions. The tip is brought very close, up to a few Angstroms, to the electrode surface. When a potential bias AF, usually of the order... 

The calculated critical lines for the binary pairs are shown in Figure 1. All these lines are discontinuous, indicating high density phase separations. For each binary pair the principal part of the critical line begins at the critical point for the component with the higher critical temperature. There is a second branch of each of the critical lines, beginning at the critical point of the component with the lower critical temperature, which terminates on intersecting a liquid-liquid-vapor three-phase line. 

Panax ginseng is a perennial plant, growing 30-80 cm high. It has a round stem and bears terminal whorls of 5-8 palmate leaves (Gruenwald et al. 1998). The flowers have greenish-yellow corollas and grow in 1-3 umbels of 15-30 flowers. The fruit are red, pea-sized, and round. The rhizome is fusiform and is the principal part for medicinal interest. 

A prescribed diet is a principal part of f reaf menf do nof skip or delay meals... 

The carbon analyzer consists of three principal parts the combustion system, the laser reflectance system, and the microprocessor control. The combustion system is shown in Figures 1 and 2. Four filter disks, each 0.25 cm in area, are mounted vertically in a quartz boat which is located in the loading section of the combustion oven. The oven is purged with a 2% 02-98% He mixture, and the temperature of the heating zone is set to 350 C. 

Fig 3 shows shock tube with a diaphragm and charging equipment such as used by Morrison (Ref 1, p 74) at Univ of Michigan for most of the velocity runs. The principal part of the equipment consisted of a half inch extra-strong commercial pipe. The reservoir and test chamber sections were con-... 

Projectile. A missile for use in any type of gun. In a general sense the term is sometimes applied to rockets and guided missiles, although they may not fall within the stated definition. The term projectile is preferred over "shell" "shot", and the like, in official nomenclature (Ref 40a, p 113). Principal parts of projectiles and their types are described in Section 4, Part B of this Vol)... 

Before proceeding with description of detonators, and other items used in HE trains of projectiles, we are giving here brief descriptions of "Principal Parts of Projectiles" "Types of Artillery Projectiles and cutaway views of typical projectiles Principal Parts of Artillery Projectiles Body. The main section of the projectile is called the body. Body diameter represents diameter of the projectile between bourrelet and rotating band. To prevent contact with bare lands, body diameter is less than bourrelet or rotating band diameter (See also Ref 44, p B218-R)... 

For convenience in description, die sketch may be regarded as divided into two principal parts... 

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