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Contra

During training the input layer is adapted as in a regular Kohonen network, i.c., the winning neuron is determined only on the basis of the input values. But in contra.st to the training of a Kohonen network, the output layer is also adapted, which gives an opportunity to use the network for prediction. [Pg.460]

The last isomerization is remarkable in that the triple bond can shift through a long carbon chain to the terminus, where it is fixed as the (kinetically) stable acetylide. The reagent is a solution of potassium diami no-propyl amide in 1,3-di-aminopropane. In some cases alkali metal amides in liquid ammonia car also bring about "contra-thermodynamic" isomerizations the reactions are successful only if the triple bond is in the 2-position. [Pg.88]

This isomerization, which must proceed through a 1,2,3-trienylanine, is not "contra-thermodynamic", since with a catalytic amount of potassium tert.-butoxide the same result is obtained. Enyne ethers, H2C=CH-CsC-0R, undergo a similar conversion into HCeC-CH=CH-OR upon interaction with alkali metal amides in liquid NH3, followed by hydrolysis . Enyne sulphides, H2C=CH-CsC-SR, and the hydrocarbons H2C=CH-CsC-R (R = or phenyl) give only tars or polymeric products under... [Pg.89]

Hard RedSpring Wheator WhiteClub wheat All otherclasses andsubclass es Contras tinge lasses,% Wheat ofothercl asses,%... [Pg.355]

Tetracyclines are used as alternative dnigs in a variety of circumstances when the patient is unable to take the dnig of choice, eg, in patients allergic to penicillin (88,89). Tetracyclines are widely known to cause staining of teeth (and are therefore contra-indicated in children developing permanent teeth), photosensitivity, and, in the case of minocycline, vestibular toxicity. Details of these adverse effects and others associated with administration of tetracyclines have been comprehensively reviewed (96—101). [Pg.182]

Proceedings of the Fifth International Clean Air Congress," Buenos Aires, 1981, 2 vols. Associon Argentina Contra La Contaminacion del Aire, Buenos Aires, 1983. [Pg.17]

In a recuperative heat exchanger, each element of heat-transferring surface has a constant temperature and, by arranging the gas paths in contra-flow, the temperature distribution in the matrix in the direction of flow is that giving optimum performance for the given heat-transfer conditions. This optimum temperature distribution can be achieved ideally in a con-tra-flow regenerator and approached very closely in a cross-flow regenerator. [Pg.65]

In a typical process 12001b (545 kg) of the mixed acids are run into the reaction vessel and 301b (13.5 kg) of the dried cotton linters are added. The mixture is agitated by a pair of contra-rotating stirrers and nitration is allowed to proceed at about 35-40°C for 20 minutes. It is interesting to note that the cellulosic material retains its fibrous form throughout the nitration process. [Pg.617]

The request letter shall enelose a Contraetor Prequalifieation Form work agreements Representations and Certifieations Form Certifieate of Completion and Release of Lien Form General Safety Rules Contraetors Booklet, and a eopy of the General Safety Contrae-tors Reeeipt Form. [Pg.218]

Contra-rotating An axial flow fan which has two impellers arranged in series and rotating in opposite directions. [Pg.1439]

The speciality chemical LifXTl (40% "CP) is used when calcium is contra-indicated,. such as in the. sanitation of hard water and in. some dairy applications. Some idea of the scale of these applications cati be gained from the following production figures which relate to the USA ... [Pg.860]

In contras t with dially lamines and their sulfonyl derivatives, IV-acy Idially lamines react with tellurium tetrahalides to give zwitterionic oxazolines 29 containing five-coordinated tellurium (85T1607). Molecular and crystal structures of one of this type of compound (29, R = Me, X = Cl) were studied by X-rays (85T1607). [Pg.14]

Wider-, counter-, contra-, re-, anti-, with-, gain-, -druck, m. counterpreasure, reaction. [Pg.513]

A further advantage of the plate heat exchanger is that the effective mean temperature difference is usually higher than with the tubular unit. Since the tubular is always a mixture of cross and contra-flow in multi-pass arrangements, substantial correction factors have to be applied to the log mean temperature difference (LMTD). In the plate... [Pg.397]

Fans may also be operated in series. Axial-flow fans are available having two (contra-rotating) impellers and motors in the one casing. Further staging may be arranged. If one stage fails or is switched off it will idle round with loss, but since similar losses in centrifugal fans are much... [Pg.449]

As for (ii), Mendeleev was, as indicated, quite ready to change atomic weight assignments from those accepted at his time to avoid significant discrepancies in his tables. This may sound ad hoc, but in fact, and as we already pointed out, some of these contra-predictions could be independently tested and their success in independent tests played an important evidential role—one which, as Brush allows, there is no reason (either historical or methodological) to suggest was any less significant than that played by the prediction of new elements. [Pg.77]

If the medicinal product (s) is currently licensed it is recommended that the current summary of product characteristics (Previously known as the data sheet) is consulted for appropriate contra indications, precautions and warnings. [Pg.83]

Programa Integral Contra la Contaminacidn Atmosf rica de la Zona Metropolitana de la Ciudad de M ico, Departamento del Distrito Federal Mexico City, 1990. [Pg.161]

See Boehme, Apologia contra Gregorium Richter, oder Schutz-Rede wieder Gregorium Richter (1624) in Peuckert, Boehme. Samtliche Schrijkn, 12 (1960), n.p. [Pg.143]

Apologia contra Gregorium Richter, oder Schutz-Rede wieder Gregorium... [Pg.166]

In the lattice-gas model, as treated in Section IV.D above, ion transfer is viewed as an activated process. In an alternative view it is considered as a transport governed by the Nernst-Planck or the Langevin equation. These two models are not necessarily contra-dictive for high ionic concentrations the space-charge regions and the interface have similar widths, and then the barrier for ion transfer may vanish. So the activated mechanism may operate at low and the transport mechanism at high ionic concentrations. [Pg.186]


See other pages where Contra is mentioned: [Pg.10]    [Pg.1100]    [Pg.57]    [Pg.148]    [Pg.1424]    [Pg.152]    [Pg.87]    [Pg.123]    [Pg.186]    [Pg.313]    [Pg.175]    [Pg.449]    [Pg.366]    [Pg.568]    [Pg.220]    [Pg.1327]    [Pg.204]    [Pg.326]    [Pg.329]    [Pg.397]    [Pg.146]    [Pg.7]    [Pg.132]    [Pg.237]    [Pg.950]    [Pg.110]    [Pg.159]    [Pg.291]    [Pg.199]    [Pg.42]   
See also in sourсe #XX -- [ Pg.93 , Pg.105 , Pg.106 ]




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