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深圳机场拦淤堤沉底技术
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作者 杨战宇 《葛洲坝水电》 1993年第3期62-67,共6页
关键词 深圳市 机场 拦淤堤 沉底技术
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Ni-Cr alloy electrodepositing technology on Fe substrate and coating performance 被引量:2
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作者 许利剑 龚竹青 +3 位作者 汤建新 贺全国 何农跃 杜晶晶 《Journal of Central South University of Technology》 EI 2007年第2期181-185,共5页
The Ni-Cr alloy electrodepositing technology on iron substrate in the chlorid-sulfate solution and the impacts of main processing parameters on coating composition were studied. The optimal Ni-Cr alloy electrodepositi... The Ni-Cr alloy electrodepositing technology on iron substrate in the chlorid-sulfate solution and the impacts of main processing parameters on coating composition were studied. The optimal Ni-Cr alloy electrodepositing conditions are that the cathode current density is 16 A/dm^2,the plating solution temperature is 30℃ and the pH value is 2.5. The bright, compact coating gained under the optimal conditions has good cohesion and 24.1% Cr content. The results show that the coating is composed of crystalline, the average grain size is 82 nm and the higher the Cr content of coating, the larger the rigidity, and the higher the corrosion resistance. The rigidity of coating reaches 78.6(HR30T) and the passivation area broadens to 1.4 V when the Cr content of coating is 24.1%. 展开更多
关键词 ELECTRODEPOSITION PLATING Ni-Cr alloy corrosion resistance
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Occurrence and Diversity of Marine Yeasts in Antarctica Environments 被引量:12
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作者 ZHANG Xue HUA Mingxia +1 位作者 SONG Chunli CHI Zhenming 《Journal of Ocean University of China》 SCIE CAS 2012年第1期70-74,共5页
A total of 28 yeast strains were obtained from the sea sediment of Antarctica.According to the results of routine identi-fication and molecular characterization,the strains belonged to species of Yarrowia lipolytica,D... A total of 28 yeast strains were obtained from the sea sediment of Antarctica.According to the results of routine identi-fication and molecular characterization,the strains belonged to species of Yarrowia lipolytica,Debaryomyces hansenii,Rhodotorula slooffiae,Rhodotorula mucilaginosa,Sporidiobolus salmonicolor,Aureobasidium pullulans,Mrakia frigida and Guehomyces pullu-lans,respectively.The Antarctica yeasts have wide potential applications in biotechnology,for some of them can produce b-galactosidase and killer toxins. 展开更多
关键词 Antarctica Psychrotolerant yeasts identification b-galactosidase killer toxin
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