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NO definition

There are no definitions for categorising reservoir fluids, but the following table indicates typical GOR, API and gas and oil gravities for the five main types. The compositions show that the dry gases contain mostly paraffins, with the fraction of longer chain components increasing as the GOR and API gravity of the fluids decrease. [Pg.96]

The precipitate obtained is in fact colloidal and has no definite composition. Careful drying of the precipitate gives the anhydrous oxide, SnO, which may also be prepared by heating tin(II) ethane-dioate (oxalate) ... [Pg.192]

Na and Nb are the numbers of atoms in the two groups A and B and S is the switching function. With the group-based switching function, it is necessary to define the distance between the two groups (i.e. the two points Ta and Tb). There is no definitive way to do this. As with cutoffs, a special marker atom can be nominated within each residue, or the centre of mass, centre of geometry or centre of charge may be used. [Pg.347]

Phthalcin reaction. Fuse together very gently in a dry test-tube 01 g. of phthalimide, O l g. of phenol and 2 drops of cone. HjSO, Cool, add waier and then NaOH solution in excess. A red coloration is produced which is decolorised by acids. (Note. Succinimide gives no definite coloration in these circumstances.)... [Pg.363]

All colourless solids, which decompose on heating and therefore have no definite m.p.s. All insoluble in ether (like most polyhydroxy-compounds). All except starch are soluble in water and have a sweet taste. Starch as ordinarily supplied is insoluble in... [Pg.366]

Chloramine-T is a salt and has no definite m.p. upon heating it loses water of crystallisation and decomposes violently at 175-180°. [Pg.824]

To the frequently asked question of what could I have achieved if I had not left in 1956, I have no definite answer. I believe, however, that we should look to the future and not second-guess the past. It is the future that really counts, and the key to the future (not only in Hungary but worldwide) is a good education. Only with a good education can the younger generation succeed, but of course circumstances, desire, and ability (as well as luck) are also important. [Pg.224]

Short chains of amino acid residues are known as di-, tri-, tetrapeptide, and so on, but as the number of residues increases the general names oligopeptide and polypeptide are used. When the number of chains grow to hundreds, the name protein is used. There is no definite point at which the name polypeptide is dropped for protein. Twenty common amino acids appear regularly in peptides and proteins of all species. Each has a distinctive side chain (R in Figure 45.3) varying in size, charge, and chemical reactivity. [Pg.331]

No definitive evidence has appeared that identifies the source of the color generated duriag thermooxidatioa (95). However, two laboratories have postulated that the reactioas leading to the formation of the color chromophores are aldol-type reactioas, either via the reactioa of aldehydes direedy (96)... [Pg.228]

The unusual physical complaints and findings in workers overexposed to teUurium include somnolence, anorexia, nausea, perspiration, a metallic taste in the mouth and garlic-like odor on the breath (48). The unpleasant odor, attributed to the formation of dimethyl teUuride, has not been associated with any adverse health symptoms. Tellurium compounds and metaboUc products have been identified in exhaled breath, sweat, urine, and feces. Elimination is relatively slow and continuous exposure may result in some accumulation. No definite pathological effects have been observed beyond the physical complaints outlined. Unlike selenium, teUurium has not been proved to be an essential biological trace element. [Pg.388]

Bismuth trioxide may be prepared by the following methods (/) the oxidation of bismuth metal by oxygen at temperatures between 750 and 800°C (2) the thermal decomposition of compounds such as the basic carbonate, the carbonate, or the nitrate (700—800°C) (J) precipitation of hydrated bismuth trioxide upon addition of an alkah metal hydroxide to a solution of a bismuth salt and removal of the water by ignition. The gelatinous precipitate initially formed becomes crystalline on standing it has been represented by the formula Bi(OH)2 and called bismuth hydroxide [10361 -43-0]. However, no definite compound has been isolated. [Pg.130]

Although there are no definitive data on media shape and grinding, ball-milling data indicate that spheres are the most effective shape. [Norris, Trans. Jn.st. Min. Metall, 63(567), 197-209 (1954)]. [Pg.1856]

There is no definite demarcation line, but positive displacement pumps normally arc preferred (wer centrifugal pumps in applications of ... [Pg.53]

Systems with two or more degrees of freedom vibrate in a complex manner where frequency and amplitude have no definite relationship. Among the multitudes of unorderly motion, there are some very special types of orderly motion called principal modes of vibration. [Pg.179]

Service factor is mentioned nowhere in the NEMA standards for lai ge machines there is no definition of it. There is no standard for temperature rise or other characteristics at the service factor overload. In fact, the standards are being changed to state that the temperature rise tables are for motors with 1.0 service factors. Neither standard synchronous nor enclosed induction motors have included service factor for several years. [Pg.124]

The Severe Accident Policy Statement formulates systematic safety examinations for detection of accident vulnerabilities and implementation of cost-effective changes. The NRC issued Generic Letter 88-20 to implement this plan through IPEs. While the primary goal was the identification of plant vulnerabilities, no definition of vulnerability was provided. Only 4 operators of BWRs identified vulnerabilities and only 16 operators of PWRs did so. Over 500 plant improvements were identified, but few vulnerabilities were. [Pg.398]

Air The composition of gases that make up the earth s atmosphere, approximately 79% nitrogen and 21% oxygen. Pure air has no definite meaning regarding the proportion of these gases this term is used to imply the absence of industrial particulate matter. [Pg.1407]

The three hydrocarbons were synthesised, but their physical constants proved to be so similar and so like those of the pentadecane obtained from sparteine that no definite information as to the constitution of the alkaloid could be obtained from them. [Pg.135]

The standard refers to total planned preventive maintenance for which there is no definition in ISO/TS 16949. There is also a requirement for the system to include predictive maintenance. [Pg.360]

The impact of this requirement depends upon what constitutes the specified requirements. The standard does not require you to demonstrate conformance with every requirement of ISO 9001. However, if your customer has invoked ISO 9001 in the contract, this clause requires that you maintain sufficient records to demonstrate compliance. As stated elsewhere in this book, there is no definition clarifying what specified requirements are. If specified requirements are a//the requirements that you have specified in your quality system, your plans, procedures, specifications, etc., this requirement may well be viewed as the most onerous in the standard. A pragmatic approach to take is to declare in your quality manual that the specified requirements are specified customer requirements . [Pg.500]

Attempts have been made to deduce the structure of the predominant form of a potentially tautomeric compound from the shifts which occur in the ultraviolet spectrum of the compound in question on passing from neutral to basic or acidic solutions. The fact that no bathochromic shifts were observed for 2- and 4-hydroxy quinoline and 1-hydroxyisoquinoline under these conditions was taken as evidence that they existed in the oxo form [similar work on substituted quinol-4-ones led to no definite conclusions ]. A knowledge of the dissociation constants is essential to studies of this type, and the conclusions can, in any case, be only very tentative. A further dif-... [Pg.348]

The infrared spectra of 2- and 4-hydroxy quinoline 1-oxide have been interpreted to favor forms 55 and 56,. respectively. Lehm-stedt has discussed the tautomerism of 10-hydroxyacridone (57 58) but reached no definite conclusions. Igeta investigated the... [Pg.360]

No definite experiments have been carried out with regard to the relative stability of the tautomers of 2-substituted indazolones 111. On the basis of basicity arguments, (he hydroxy tautomer 111a was considered to be preferred [96JCS(P2)2263],... [Pg.220]

No definite choice between the two tautomeric forms was made in early studies of 5-mercapto-l,3,4-triazolin-2-one 244 (Scheme 84) [76AHC(S1), p. 464]. The oxo-thione form 245, similar to 241, was attributed to 2-mercapto-4-hydroxyoxazole and its derivatives based on IR-spectro-... [Pg.245]

Me), but there is little direct evidence available and no definite conclusions can be drawn. The equilibrium 117 118 appears to favor... [Pg.54]


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See also in sourсe #XX -- [ Pg.916 ]




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Definition No. 2 Cybernetic

Definition No. 5 Five-stage

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