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(11/10) Ó÷åíûå èç ÈÔÕÝ ÐÀÍ è ÌÃÓ ïîä ðóêîâîäñòâîì Îëüãè Âèíîãðàäîâîé ïîíÿëè, êàê «ïîëîñàòàÿ» ãèäðîôîáíîñòü..

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(11/10) Ó÷åíûå îáíàðóæèëè ïóòè ïðîíèêíîâåíèÿ âèðóñîâ ãðèïïà è ÂÈ× â îðãàíèçì

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(17/04) Êóðñ “Àíàëèç ãåíîìíûõ äàííûõ”, Ìîñêâà, 2 – 11 èþëÿ 2012

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(12/03) Âïåðâûå ïîëó÷åíî èçîáðàæåíèå àòîìîâ, äâèæóùèõñÿ â ìîëåêóëå

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Results 11 - 15 of 15

11.

Activity and Standards of ISO and IEC in the Field of Corrosion and Corrosion Protection¹

O. V. Samoilova and O. V. Zamyatina

All-Russian Research Institute for Standardization, ul. Novatorov 40, Moscow, 119317 Russia

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Received April 30, 2004

Abstract — Some papers devoted to the ISO standards in the sphere of corrosion and corrosion protection of metals and alloys, as well as those dealing with the work of the ISO technical committee TC 156 “Corrosion of metals and alloys” were already published in this [2, 3] and other [4, 5] Journals. For the past period, the role of ISO standards in the practice of engineering and research investigation became more substantial. A new ver-sion of ISO 9000, the most popular among the ISO standards, was published. Certifying according to the requirements of ISO 9000 and 14000 standards series became an important criterion of the competitive capacity of an experimental laboratory or company specializing in the sphere of scientific-technical engineering and designing. Despite the status of the free-will application of standards, the conformity to the requirements of ISO standards in the sphere of quality systems and ecological management became a serious factor determining the competitive capacity of any product, including scientific-technical design. Conformity of the production to the standards of 9000 and 14000 series becomes an obligatory requirement for the providers.

30/09/2008 | 853 Hits | Print

12.

The Anodic Behavior of Hydrogenated Copper in Sodium Hydroxide Solutions

D. S. Sirota and A. P. Pchel’nikov

Karpov Research Institute of Physical Chemistry (Russian State Scientific Center),
ul. Vorontsovo pole 10, Moscow, 103064 Russia

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Received June 6, 2004

Abstract — The anodic behavior of cathodically hydrogenated copper in 1 N NaOH solution is investigated with the use of its free-corrosion chronopotentiometry (E_cor) and cyclic voltammetry (CVA). The former proves that while being cathodically hydrogenated, copper, unlike nickel, does not form hydride. An analysis of the CVAs shows that during anodic dissolution of hydrogenated copper, two forms of adsorbed hydrogen are ionized, while the ionization is limited by the diffusion in solid phase. Under the same hydrogenation conditions, copper sorbs ten times less hydrogen than nickel does.

30/09/2008 | 783 Hits | Print

13.

Dissolution of NiZn Alloys in Sulfate Solutions

V. V. Ekilik, A. G. Berezhnaya, and E. A. Tugolukova

Rostov State University, ul. B. Sadovaya 105, Rostov-na-Donu, 344006 Russia

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Received February 2, 2004

Abstract — The anodic behavior of nickel, zinc, and their alloys with the zinc content from 30 to 90% in blank sulfate solutions and in the presence of quinolinium perchlorate derivatives is studied. For the mixed dissolution kinetics, the effect of additives in the stages of ionization and liquid- and solid-phase diffusion is elucidated. The inhibition coefficients of the process are shown to correlate with hydrophobicity constants of alkyl substituents in organic cations.

30/09/2008 | 893 Hits | Print

14.

Effect of Viscosity on Lubricating and Protective Action of a Glassy Melt on Hot Rolling of 30 Steel

O. R. Lazutkina¹ , P. I. Buler² , and N. V. Odegova¹

¹ Ural State Technical University, ul. Mira 19, Yekaterinburg, 620002 Russia

² Erlangen–Nürnberg University

Received April 30, 2004

Abstract — Variation of the viscosity of molten glasses xNa₂O · yCaO · zB₂O₃ · nSiO₂ in a temperature range of 1300–1700 K and the effect of the viscosity and Na₂O content on the steel oxidation rate are considered.

30/09/2008 | 927 Hits | Print

15.

Corrosion Damage to a Silver Coin Sobol

I. G. Erusalimchik¹ , M. N. Filippov², and I. V. Murav’eva²

¹ Moscow State Institute of Radio Engineering, Electronics, and Automatics (Technical University),
pr. Vernadskogo 78, Moscow, 117454 Russia

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² Moscow Institute of Steel and Alloys (Technological University), Leninskii pr. 4, Moscow, 117936 Russia

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Received December 24, 2003

Abstract — The surface of a silver coin “Sobol’” is investigated by local x-ray fluorescence analysis and mea-suring the electrode potential. It is shown that the coin blackening is associated with the formation of silver sulfide Ag₂S.

30/09/2008 | 909 Hits | Print

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