G-type

1) Magnetic Structures of Compounds MeFs and AMeFs a) G-Type 

The magnetic stractures of the cubic fluoroperovskites AMeFs (Me + = Mn, Fe, Co, Ni) also belong to the G-type 273). Connected with the magnetic ordering below the Ne l-points, small distortions occur which have been studied in the case of potassium compounds by Okazaki and Suemune 237) and by Beckman and Knox 26, 27). A theoretical interpretation of such distortions, which were observed in antiferromagnetic oxides of the rock-salt type also, is given by Kanamori 179, 180). 

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Chloroprene Elastomers. Polychloroprene is a polymer of 2-chloro-l,3-butadiene. The elastomer is largely composed of the trans isomer. There are two basic polymer types the W-type and the G-type. G-types are made by using a sulfur-modified process W-types use no sulfur modification. As a result, G-types possess excellent processing and dynamic properties, and tend to be used in V-belts. However, they have poorer aging properties than W-types. The W-types tend to be used in appHcations requiring better aging, such as roUs and mechanical goods (see Elastomers, SYNTHETIC-POLYCm.OROPRENE). 

These methods of classification are not mutually exclusive. Thus filters usually are divided first into the two groups of cake and clarifying equipment, then into groups of machines using the same land of driving force, then further into batch and continuous classes. This is the scheme of classification underlying the discussion of filters of this subsection. Within it, the other aspects of operating cycle, the nature of the sohds, and additional factors (e.g., types and classification of filter media) will be treated explicitly or implicitly. 

Furnace tubes, piping, and exchanger tubing with metal temperatures above 800°F now tend to be an austenitic stainless steel, e.g., Type 304, 321, and 347, although the chromium-molybdenum steels are still used extensively. The stainless steels are favored beeause not only are their creep and stress-rupture properties superior at temperatures over 900°F, but more importantly because of their vastly superior resistance to high-temperature sulfide corrosion and oxidation. Where corrosion is not a significant factor, e.g., steam generation, the low alloys, and in some applications, carbon steel may be used. 

The differences in the assesement of softening point between the tests is clearly largely a matter that the end point of the test measures a different modulus. Reference to Figure 9.1 shows that with some materials (e.g. of type A) this will not be of great importance but with other types (e.g. types E or F) the difference could be very large. 

Thus, if you wish to save the results of a particular run, you must change the name of the output file using the DOS RENAME command (e.g., type REN SCREEN.OUT RUNl.OUT), or simply print the file using the option at the end of the program. 

The maximal flow rates and operational pressures that can be used with Sephadex G types depend primarily on the concentration of dextran and the degree of cross-linking used to stabilize the particle. Sephadex G-10, G-15, G-25, and G-50 are quite highly cross-linked, and the first three types are consid-... 

Assuming an eluent viscosity of 1 cP, K can be read from Table 2.1 and the theoretical linear velocity of an eluent at any given pressure can be calculated. For the less rigid Sephadex G types, the maximum operating pressures at which the relation between superficial velocity and applied pressure is still linear are given in Table 2.1. Exceeding the pressures listed will result in bead compression, a reduction in pore volume, and a decreased flow rate. 

The G-type parameters are Coulomb terms, while the H parameter is an exchange integral. The Gp2 integral involves two different types of p-functions (i.e., Py or pj. 

Several new methods for the synthesis of 1,5-diones were described recently,Although some methods to be discussed further (e.g., type in Section II,C, 2,g) obviate the necessity of preparing... 

There is an increasing tendency to treat drinking waters to remove organic material. This is to minimise the formation of haloforms, produced when the water is chlorinated, which have heeilth implications . Organics are known to affect certain corrosion processes, e.g. type I copper pitting and the formation of protective corrosion product layers. However, the outcome of this development is difficult to predict as not all the organic material present is removed. 

Selective corrosion in the heat-affected zone of a weld occurs most commonly when unstabilised stainless steels are used in certain environments. The obvious answer is to use an extra-low-carbon grade of stainless steel, e.g. types 304L, 316L or a stabilised grade of steel, e.g. types 321 and 347. Knifeline attack at the edge of a weld is not commonly encountered and is seldom predictable, and it must be hoped that it is revealed during preliminary corrosion testing. 

Space does not permit a survey of all the various weldable metals and their associated problems, although some suggestions are made in Table 9.9. It is sufficient to state that with a knowledge of the general characteristics of the welding process and its effects on a metal (e.g. type of thermal cycle imposed, residual stress production of crevices, likely weldability problems) and of the corrosion behaviour of a material in the environment under consideration, a reliable joint for a particular problem will normally be the rule and not the exception. 

The optical properties can be tuned by variations of the chromophores (e.g. type of side-chains or length of chromophorc). The alkyl- and alkoxy-substituted polymers emit in the bluc-gnecn range of the visible spectrum with high photolu-inincsccncc quantum yields (0.4-0.8 in solution), while yellow or red emission is obtained by a further modification of the chemical structure of the chromophores. For example, cyano substitution on the vinylene moiety yields an orange emitter. 

Specific details to enable the affected product to he easily identified e.g. type of device, model name and number, batch/ serial numbers of affected devices and part or order number. 

Type of Food Energy (kJ/g)Type of Food Energy (kJ/g)... 

To ensure maximum pigment retention, the acidic eluates should be checked for their pH values and if required, aqueous ammonia has been proven viable for pH adjustment to reach 5 to 7 pH values. While Sephadex G types were used in earlier studies for purification and desalting, Sephadex LH-20 is the material of choice today. Since the betalains will elute with water, it is doubtful whether effective salt removal is possible. However, Sephadex LH-20 has proven excellent for removing... 

For symmetrical electrolytes, of, e.g., type 1 1, such a liquid-liquid interface, in equilibrium, is described by the standard Galvani potential, usually called the distribution potential. This very important quantity can be expressed in the three equivalent forms, i.e., using the ionic standard potentials, or standard Gibbs energies of transfer, and employing the limiting ionic partition coefficients [3] ... 

In Fig. 2 log n(Be) is plotted as a function of log n(Li) for the Hyades, IC 4651, and M 67. We recently obtained UVES spectra of a new sample of F-and G-type stars in M 67. Be abundances for these stars are shown in the figure together with those of the sample of [17]. As found and discussed by [1], the figure shows a tight correlation between Be and Li abundances for Hyades stars... 

In the so-called G types, sulphur is copolymerised with the chloroprene to yield a product as shown schematically below ... 

The G types are stabilised with TETD, with the result that the G types do not require further acceleration to cure. 

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