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Climatic instability record during the Penultimate Glaciation: Evidence from Huining loess

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Chinese Science Bulletin 1997年第20期42卷 1720-1723页

作者： Ren, jz Ding, ZL Liu, DS Quan, H China Japan Friendship Ctr Environm Protect Open Lab Beijing 100029 Peoples R China

THE investigations of past global changes reveal strong climatic instability during the lastglaciation. Most terrestrial palaeoclimate records have not given climatic conditionclues in the Penultimate Glaciation. It is very necessary for us to know whether the climaticinstability picture is a particular phenomenon occurring only in the last glacial period. In

关键词： China Loess Penultimate Glaciation climatic instability.

STRUCTURE OF 1-EPICRASSICAUDINE

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Chinese Chemical Letters 1995年第2期6卷 109-110页

作者： Wang, FP Dai, XP Wang, jz Zhang, R W China Univ Med Sci Sch Pharm Dept Chem Med Nat Prod Chengdu 610044 Peoples R China

A new C-19-diterpenoid alkaloid. 1-epicrassicaudine, was isolated from the roots of Aconitum hemslevanum Pritz var. pengshinese. Spectral methods demonstrated that it has the structure represented by (1) an 1-epimer o...

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Luminescence LB films of rare earth complexes with monooctadecyl phthalate

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Chinese Science Bulletin 1997年第10期42卷 825-828页

作者： Li, B Zhang, HJ Ma, JF Wang, SB Ni, jz Laboratory of Rare Earth Chemistry and Physics Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun China

THE Langmuir-Blodgett film has a good prospect of application in molecular electronics,inte-grated options,information storage,chemistry and biosensor since it is ultrathin,homoge-neous and can be arbitrarily assembled on molecular *** are becoming interested ininducting functional rare earth complexes to LB *** a kind of polymer having indef-inite chain structure,rare earth carboxylate complexes have both good luminescence

关键词： rare earth complex monooctadecyl phthalate LB film luminescence.

Talaromyces peaticola(Aspergillaceae,Eurotiales),a new species from the Zoige wetlands,China

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Studies in Fungi 2021年第1期6卷 391-399页

作者： Tian JQ Wang YF Sun jz State Key Laboratory of Mycology Institute of MicrobiologyChinese Academy of SciencesNo.3 Park 1Beichen West RoadChaoyang DistrictBeijing 100101P.R.China State Key Laboratory of Vegetation and Environmental Change Institute of BotanyChinese Academy of SciencesBeijing 100093China University of Chinese Academy of Sciences 100049 BeijingChina

Species in Talaromyces section Trachyspermi are isolated from a wide range of substrates,including soil,house dust,leaf,wood and fruit from temperate region to tropical *** a survey of fungal diversity in Zoige wetlands,three isolates with biverticillate adpressed penicilli and spheroidal conidia belonging to Talaromyces are isolated from peat *** analyses based on a combined ITS,BenA,CaM and RPB2 sequence data suggests they represent a novel taxon in Talaromyces section Trachyspermi,namely Talaromyces *** spite of *** has a close affinity to *** in phylogeny,it is readily distinguished from the later,resulted from growing slowly on CREA at 25℃,exudating small clear droplets on MEA,and producing smaller conidia than that of ***.

关键词： 1 new taxon peatland Qinghai-Tibetan Plateau taxonomy

Diversity of wood-decaying fungi in Haikou Forestry Farm,Yunnan Province,***

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Studies in Fungi 2021年第1期6卷 365-377页

作者： He X Chen jz Zhao CL College of Biodiversity Conservation Southwest Forestry UniversityKunming 650224P.R.China

Nine field trips carried out in Haikou Forestry Farm,Yunnan Province,*** resulted in 681 specimens of wood-decaying *** present paper summarizes 52 species collected that are distributed in 37 genera,16 families,6 orders including their hosts and substrates.A checklist of wood-decaying fungi in Haikou Forestry Farm is also *** analysis of ITS nrRNA gene region was performed for all the collected samples with maximum likelihood,maximum parsimony and Bayesian inference *** phylogenetic tree showed that fifty-two species nested in sixteen families belonging to six orders in Agaricomycetes.

关键词： Basidiomycota biological resources diversity Haikou Forestry Farm mycota

Fractals in Steel-Aluminum Solid to Liquid Bonding

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Journal of Materials Science & Technology 1999年第5期15卷 486-488页

作者： Zhang, P Du, YH Ren, XP Ba, LM Liu, HW Cui, jz Univ Sci & Technol Beijing Sch Mat Sci & Engn Beijing 100083 Peoples R China Anshan Automobile Fittings Factory Anshan 114014 Peoples R China Northeastern Univ Met Forming Dept Shenyang 110006 Peoples R China

This paper studied the fractal characteristic of the interfacial shear surface of steel-Al solid to liquid bonding plate, and determined the relationship between fractal dimension and interfacial shear strength. The research results showed that the relationship between fractal dimension and interfacial shear strength could be described as y=26.2x+4.2 (where y was interfacial shear strength, x was fractal dimension) and when 08Al steel plate was coarsened by steel wire wheel which was made up with steel wires whose diameter were 1.4 similar to 1.6 mm, the optimum coarsening pattern of the steel plate surface could be got, the corresponding maximum interfacial shear surface fractal dimension of the bonding plate was 2.33, and the maximum interfacial shear strength of the bonding plate was 65.3 MPa.

关键词： Nature MPa

Hypersensitivity and its application to structural analysis of lanthanide complexes

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Chinese Journal of Chemistry 1997年第1期15卷 49-53页

作者： Yang, W Chen, M Gao, jz Yang, WD Kang, JW Yang, HW NW NORMAL UNIV DEPT PHYSLANZHOU 730070GANSUPEOPLES R CHINA

Hypersensitivity of the ternary complexes Ln(beta-dik)(4)HMQ(where Ln=Nd, Ho, Er, beta-dik=acetylacetonate(AA), dibenzoylmethanate(DBM) and MQ=4-methylquinoline) in acetone solution is studied based on the dynamic coupling model. The structures of these complexes in solution are deduced. Their coordination polyhedrons are all distorted square antiprism. Neodymium complexes have D-2 symmetry, while holmium and erbium complexes have exact D-2d symmetry.

关键词： hypersensitivity structural analysis lanthanide ternary complexes

Preliminary study on light hydrocarbons in ore-forming fluids of gold and antimony deposits in southwestern Guizhou, China

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Chinese Science Bulletin 1997年第20期42卷 1708-1711页

作者： Zhuang, HP Lu, JL Fu, JM Liu, jz Shi, JX Chinese Acad Sci Guangzhou Inst Geochem Guangzhou 510640 Peoples R China

METAL minerals precipitate generally from ore-forming fluid. It is suggested that organic mat-ter in ore-forming fluid is one of the best media which show the role of organic matter in oregenesis. Because mineralizing temperatures of many ore deposits exceeded the stable rangesof liquid hydrocarbons, only light hydrocarbons were preserved well in inclusions. Thus,

关键词： southwestern Guizhou gold and antimony deposits light hydrocarbon.

TWO NEW TAXOIDS FROM THE NEEDLES OF TAXUS WALLICHIANA ZUCC

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Chinese Chemical Letters 1995年第11期6卷 967-970页

作者： Zhang, jz Fang, QC Liang, XT Kong, M He, WY Chinese Acad Med Sci Inst Mat Med Beijing 100050 Peoples R China Beijing Union Med Coll Beijing 100050 Peoples R China

Two new taxoids, named taxawallin A(1)and taxawallin G(2) were isolated from the needles of Taxus wallichiana Zucc.. Their structures were established by spectral methods.

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