共搜索到1555条信息，每页显示10条信息，共156页。用时：0小时0分0秒203毫秒
Effects of Lanthanum and Cerium on Acid Phosphatase Activities in Two Soils 刘广深1,刘维屏1,徐杰1,徐冬梅1 (1.Environmental Science Institute,Zhejiang University,Hangzhou 310029,China) Abstract:To evaluate... the effect of same concentration of the thulium,the acid phosphatase in two soils increases with the extending of culture time. Key words:pedology; lanthanum; cerium; soil; acidic phosphatase; rare......
Effect of Cerium on Chemical Short-Range Order of Al-Fe-Ce Amorphous Alloy WU You-shi1,ZHANG Lin1,WANG Wei-min1,BIAN Xiu-fang1,LI Hui1,XING Zhi-na1 (1.College of Materials Science and Engineering... formation, so it is favorable to Al-based glass formability. Key words:rare earths; cerium; Al-Fe-Ce amorphous alloy; prepeak; chemical short-range order; [全文内容正在添加中] ......
Effect of Cerium Sulfate on Acidic Electroless Nickel Deposition刘海萍,李宁,毕四富摘 要:The effect of cerium sulfate on bath stability, deposition rate, reaction activation energy and deposit composition in acidic electroless nickel plating solutions was investigated. The influence mechanism of cerium sulfate on electroless nickel was also studied......
Cerium extraction by metallothermic reduction using cerium oxide powder injectionJ.S.Luna A1,A.Flores V1,R.Muiz V2,A.F.Fuentes1,J.Torres1,N.Rodríguez R3,J.C.Ortiz2,P.Orozco4摘 要:This work presented the feasibility of cerium recovery by Al-Mg alloy through the metallothermic reduction of CeO2 to obtain a master alloy Al-4%Ce.The master alloy obtained......
Cerium extraction by metallothermic reduction using cerium oxide powder injectionJ.S.Luna A1,A.Flores V1,R.Muiz V2,A.F.Fuentes1,J.Torres1,N.Rodríguez R3,J.C.Ortiz2,P.Orozco4摘 要:This work presented the feasibility of cerium recovery by Al-Mg alloy through the metallothermic reduction of CeO2 to obtain a master alloy Al-4%Ce.The master alloy obtained......
; corrosion resistance; yttrium and cerium ion implantation; potentiodynamic polarization; phase transformation; [全文内容正在添加中] ......
Effect of Rare Earths on Plant under Supplementary Ultraviolet-B Radiation: Ⅰ Effect of Cerium on Growth and Photosynthesis in Rape Seedlings Exposed to Supplementary Ultraviolet-B Radiation Liang... Science, Nanjing Normal University, Nanjing 210097, China) Abstract:Effect of cerium (Ce3+) on growth and photosynthesis in rape seedlings exposed to two levels of ultraviolet-B radiation (UV-B, 280~320......
Cerium Chemical Conversion Coating on a Novel Mg-Li Alloy高丽丽,张春红Key Laboratory of Superlight Materials and Surface Technology,College of Materials Science and Chemical Engineering,Harbin Engineering University摘 要:A novel Mg-Li alloy was treated in a cerium nitrate solution and cerium chemical conversion coating was obtained on the alloy......
Corrosion Protection of AA2024-T3 by Cerium Malate and Cerium Malate-Doped Sol-Gel CoatingsTian-Hui Hu,Hong-Wei Shi,Tao Wei,Shi-Hua Fan,Fu-Chun Liu,En-Hou HanDepartment of Chemistry, Northeastern UniversityCAS Key Laboratory of Nuclear Materials and Safety Assessment, Institute of Metal Research, Chinese Academy of Sciences摘 要:Cerium malate(CeMal......
Formation and characterization of cerium conversion coatings on magnesium alloy李凌杰,雷惊雷,于生海,田钰靖,蒋齐全,潘复生摘 要:Chemical conversion treatment by rare earth metal salt solution was considered as an alternative to chromium chemical conversion treatment to improve the corrosion resistance of magnesium alloys. In this study, cerium conversion coatings formed......
