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ON THE POSITION AND ROLE OF BASIC RESEARCH EXEMPLIFIED BY THE DEVELOPMENT OF THE DRUG "DI'AOXINXUEKANG
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作者 Zhao Dehua(Chengdu Institute of Biology, CAS) 《Bulletin of the Chinese Academy of Sciences》 1996年第1期45-48,共4页
Basic research features its indelible contribution to and energetic promotion of scientific cause and advancing social progress. This article explores its vital position and rewarding role in creating socio-economic b... Basic research features its indelible contribution to and energetic promotion of scientific cause and advancing social progress. This article explores its vital position and rewarding role in creating socio-economic benefits by reviewing the development and marketing success of a new drug, "Di’ aoxinxuekang". 展开更多
关键词 CIB DI’AOXINXUEKANG ON THE POSITION AND ROLE OF BASIC RESEARCH EXEMPLIFIED BY THE DEVELOPMENT OF THE DRUG BASIC
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Ab initio calculations on icosahedral molecules——Ⅰ.The implementation of symmetry reduction in calculation exemplified by B_(12)H_(12)^(2-)
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作者 JIANG Yuan-Sheng YU Wei-Zhou ZHANG Ming-Yu LI Xiao-Tian Institute of Theoretical Chemistry,Jilin University,Changchun 《Acta Chimica Sinica English Edition》 SCIE CAS CSCD 1989年第3期193-200,共1页
The symmetry reduction of icosahedral group has been carried out by means of projective operator method.The irreducible bases and matrices were tabulated for generators C_2,C_3 and C_5 which would be sufficient for th... The symmetry reduction of icosahedral group has been carried out by means of projective operator method.The irreducible bases and matrices were tabulated for generators C_2,C_3 and C_5 which would be sufficient for the implementation of ab initio or other computations in terms of symmetry-adapted linear combinations of atomic orbitals.As an initial application,the borane dianion B_(12)H_(12)~2-with I_h,symmetry has been calculated with a flexible s,p set,(9s5p/4s)being contracted into[3s2p/2s].The electron counting rule was then analyzed. 展开更多
关键词 The implementation of symmetry reduction in calculation exemplified by B Ab initio calculations on icosahedral molecules
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