共查询到20条相似文献，搜索用时 31 毫秒
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Obituaries
Grigorii Valentinovich Samsonov 相似文献2.
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For the Centenary of G. S. Pisarenko’s Birth 《Powder Metallurgy and Metal Ceramics》1990,29(9):759-759
Obituary
Lukashenko Georgii Mikhailovich 相似文献5.
《Powder Metallurgy and Metal Ceramics》1992,31(12):1081-1082
Obituary
Valentin Nikiforovich Eremenko 相似文献6.
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Jie Chen Guangxue Tian Yonggang Chi Mei Liu Dongwei Shan et al. 《Powder Metallurgy and Metal Ceramics》1990,29(2):170-170
Obituary
Kim Isaevich Portnoi 相似文献8.
N. B. Gorshkov 《Metallurgist》1991,35(6):101-106
Protecting the Environment
Survey of new technology now on the job 相似文献9.
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Obituary
In memory of Sergei Leonidovich Kotsar' 相似文献11.
N. B. Gorshkov 《Metallurgist》1991,35(4):67-69
Science, Technology, Industry
Survey of new technology now at work 相似文献12.
《Metallurgist》1992,36(11):175-180
Economics: Problems and Solutions
Survey of new technology—Now on line 相似文献13.
Alfonso del ávila Palacio 《Metallurgist》1991,35(8):153-155
Industrial Safety
Basic operations in manual forging 相似文献14.
The purpose of this study was to begin to examine the influence of inhaled NO on O2 toxicity. The survival of Sprague-Dawley rats exposed to >95% O2, >95% O2 + 10 ppm NO, >95% O2 + 100 ppm NO, and >95% O2 + 3 ppm NO2 was determined. Survival at 120 h was 2/24 in >95% O2, 2/12 in >95% O2 + 10 ppm NO, and 1/12 in >95% O2 + 3 ppm NO2. Survival at 120 h was 21/30 in >95% O2 + 100 ppm NO (p < 0.01 compared with >95% O2). Three additional groups of rats were exposed for 60 h to: 21% O2, >95% O2, or >95% O2 + 100 ppm NO. The lungs were then assayed for total protein, reduced (GSH) and oxidized glutathione (GSSG), and 4-hydroxy-2(E)-nonenal. Both of the high O2 groups had significantly (p < 0.05) lower GSH/mg protein and GSH/GSSG ratios compared with the 21% O2 group. The >95% O2 group had a higher 4-hydroxy-2(E)-nonenal/mg of protein than either the 21% O2 group (p < 0.05), or the >95% O2 + 100 ppm NO group (p < 0.05 compared with >95% O2, not different from the 21% O2 group). Additional groups of rats were exposed to either 21% O2, >95% O2, or >95% O2 + 100 ppm NO for 0, 24, 48, and 60 h. The lungs were examined for neutrophil accumulation, which was increased at 60 h in the two groups exposed to >95% O2, but adding NO had no effect. Thus, the overall result was that 100 ppm inhaled NO improved the survival of rats in high O2. 相似文献
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Anniversaries
In recognition of the sixtieth birthday of Yurii Sergeevich Karabasov 相似文献16.
Peter Wilson 《Metallurgist》1991,35(11):200-200
International Relations
Cooperation between Soviet and Korean Trade Unions 相似文献17.
Company Presentation
Cisco solutions for Russian Metallurgical Plants 相似文献18.
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