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排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
E. V. Golikova V. S. Grigor’ev V. I. Kuchuk T. S. Mashchenko L. P. Efimenko A. T. D’yachkova 《Glass Physics and Chemistry》2008,34(5):582-598
The aggregate stability of submicron and nanosized ZrO2 aqueous sols of different origins and different dispersities at pH 3–10 in the KCl concentration range 10?3–10?1 M is investigated by flow ultramicroscopy and photometry. The results obtained are analyzed in the framework of the extended Derjaguin-Landau-Verwey-Overbeek theory and the Muller-Martynov theory of reversible aggregation. The extension of boundary layers of water near the surface of the ZrO2 particles is estimated. 相似文献
992.
Permeable reactive barrier for groundwater remediation 总被引:4,自引:0,他引:4
R. Thiruvenkatachari S. Vigneswaran R. Naidu 《Journal of Industrial and Engineering Chemistry》2008,14(2):145-156
This article aims to provide an overview of the upcoming technology of permeable reactive barriers for groundwater remediation. A comprehensive list of references and web-links are also provided for further in-depth understanding. A brief discussion on the Australian perspective on this emerging technology is also included. 相似文献
993.
994.
995.
Yu. A. Zolotukhin 《Coke and Chemistry》2008,51(8):291-296
The codification of coal in State Standard 25543-88 is compared with the international codification of coal of medium and high rank. The ranking of coking coal on the basis of State Standard GOST 25543-88 is evaluated. 相似文献
996.
997.
Various heat insulation materials produced at home and abroad are compared. The advantage of using natural nano-structured
materials is substantiated.
Translated from Novye Ogneupory, No. 7, pp. 41–44, July 2008. 相似文献
998.
A. E. Lapshin Yu. F. Shepelev Yu. I. Smolin E. A. Vasil’eva 《Glass Physics and Chemistry》2008,34(2):182-186
The distribution and structure of tellurium nanoclusters synthesized in crystal channels of the porous silica ZSM-11 are investigated
using the maximum-entropy method and the Rietveld analysis. It is shown that the intercalated tellurium atoms are arranged
in channels of the ZSM-11 zeolite not randomly but in the form of scraps of infinite chains similar to those observed in massive
tellurium. The distances between the nearest neighbor tellurium atoms vary in the range 2.53(4)–2.70(3) ?. The clusters Te4 are formed at the intersections of channels in the structure. These clusters have the form of distorted tetrahedra in which
the tellurium atoms are separated by distances of 2.53(4) and 2.90(4) ?.
Original Russian Text ? A.E. Lapshin, Yu.F. Shepelev, Yu.I. Smolin, E.A. Vasil’eva, 2008, published in Fizika i Khimiya Stekla. 相似文献
999.
Programs are presented for calculating dusty air flow in ventilation systems, which have been derived from the method of singular
integral equations. They allow one to construct flow lines and determine the velocity pattern for the air in a closed rectangular
region with outlet, flow, and extraction holes; a study is made on the dust particle behavior in the aerodynamic field in
which there may be a rotating cylinder or pumping cylinder; determinations are made of the concentration and grain-size composition
of the dust in the extraction hole; one can construct flow lines and single-particle paths in multicoupled regions of potential
flows containing any number of rotating cylinders and cylinder pumps.
Translated from Novye Ogneupory, No. 5, pp. 53–58, May, 2008. 相似文献
1000.