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Deep- Seated Tectonic Activation of Tancheng-Lujiang Fault Zone and Its Control over Jiaodong Gold Concentrated Region, china

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Journal of Earth Science 1999年第1期18卷 55-57页

作者： Cai Xinping Zhang Baolin institute of Geology, Chinese academy of {2., Beijing 10002.

A comprehensive discussion on the deep seated genesis of gold metallogenic materials and the tectono magmatic controls over gold deposits is given in this paper, which is based on the crustal and upper mantle structural characteristics of the Jiaodong massif, the property, activation history and styles of the Tancheng Lujiang fault zone, as well as a series of accompanying tectono magmatic events. Prediction for further prospecting gold deposits in the area is also made.

关键词： deep seated tectonic activation Tancheng Lujiang fault zone Jiaodong gold concentrated region.

Stereoselective Synthesis of (Z)-2.Acylamido-4-phenylcrotonates

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Chinese Chemical Letters 2000年第7期11卷 567-570页

作者： Yi Nong XIE Fan Min FU Ai Qiao MI Yao Zhong JIANG(Chengdu institute of Organic Chemistry, Chinese academy of {2.,Chengdu 610041) Chengdu Inst. of Organic Chemistry Chinese Academy of Sciences Chengdu 610041 China

Two practical methods for highly stereoselective synthesis of (Z)-2.acylamido-4-phenylcrotonates 2. similar to b have been developed. The key step in the first route was how to control the acid-catalyzed isomerization of condensation mixtures of alpha-keto ester 5 with carbomite. In the second route the key step was reduction of oxime 8, derived from alpha-keto ester 5, with iron powder in the presence of acetic anhydride.

关键词： (Z)-alpha,beta-dehydroamino acids stereoselective synthesis E -> Z isomerization Fe/Ac2. reduction of oxime

Recovery of heavy metals from electroplating sludge and stainless steel pickle waste liquid by ammonia leaching method

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Journal of Environmental sciences 1999年第3期11卷 381-384页

作者： Zhang Yi, Wang Zhi\|kuan, Xu Xia, Chen Yong\|qi, Qi Tao institute of Chemical Metallurgy, Chinese academy of {2.,P.O. Box 353, Beijing 100080, china 中科院化工冶金所北京 100080 中科院化工冶金所北京

A coordinative disposal process for treatment of electroplating sludge and stainless steel pickle waste liquid containing Cu, Ni, Zn, Cr and Fe etc., has been developed to recover valuable metals and to eliminate pollution. The recovery of Cu, Ni, Zn and Cr is 94%, 91%, 90% and 95%, respectively. The ammonia was recycled by the simplified process of CaO caustic distillation. The precipitated product of Cu, Ni and Zn obtained from caustic distillation of ammonia was separated by extraction or high\|pressure hydrogen reduction in an autoclave. The qualified metal salt products were obtained through extraction. The rich chromium residue from coordinative disposal was subjected to recover Cr by hydrothermal oxidation in NaOH medium and Fe\-3O\-4 was synthesized by wet methods from the residue produced by extracting Cr. Cr was a stable chemical fixed in Fe\-3O\-4 and harmless. The recovery process has been used in a pilot plant with sludge production capacity of 2.00 t/a.

关键词： coordinative disposal recovery valuable metals electroplating sludge stainless steel pickle waste liquid.

C-H BOND ACTIVATION AND FUNCTIONALIZATION OF METHANE UNDER MILD CONDITIONS

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分子催化 1990年第S1期4卷 76-84页

作者： Zhang Liangfu , Ding Fujiang, Jin Hong, Jiang Qiongzhong,Yang Qi and Li Guangnian(Chengdu institute of Organic Chemistry, Chinese academy of {2., Chengdu, china)

In the presence of Rh（COD）（dppe）Cl （COD=1, 5-cyclootadiene, dppe=1,2.bis-（diphenylphosphino）ethane） and CO, we studied the H/Cl exchange reaction between CH4 and o-dichlorobenzene, and observed that the active species of the reaction is a complex containing dppe and carbonyl ligands. We suggest that the mechanism of exchange reaction may be described by the elementary reaction of oxidative addition and reductive elimination. In the presence of trans-PtHL2./sub>X （L=PEt3, P（n-Pr）3, P（n-Bu）3, PPh3; X=Cl-, Br-, I-, CN-） complexes, we have studied the oxidative chlorination reaction of methane. The catalytic activity was found to be related to the electron-donating properties and the cone angle of tertiary phosphine, as well as the trans-effect of X anionic ligands. In addition to the above reactions, we have also studied the insertion reaction of acetylene into C-H bond of methane catalyzed by organotransition-metal complexes containing heterocyclic chelate ligands, such as bipy, phen and TMEDA, in

关键词： ethane heterocyclic chelate carbonyl acetylene complexes catalyzed anionic oxidative insertion

神经tau聚集物诱导乳酸脱氢酶的失活与构象变化

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生物化学与生物物理进展 2004年第7期31卷 596-599页

作者：田瑞曲梅花刘缨赫荣乔中国科学院视觉信息加工开放实验室

在 37℃ ,pH 7 2.件下 ,人类神经tau经过保温形成自聚集物 ,从而丧失对微管蛋白组装的功能 .进一步的实验表明 ,天然tau具有促进乳酸脱氢酶活性的作用 ,而tau聚集物却诱导乳酸脱氢酶活性的降低 .

关键词： tau 自聚集微管蛋白组装乳酸脱氢酶老年性痴呆

Horizontal Flux of Biogenic Elements through PN Section in April 1994

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Journal of Hydrodynamics 2001年第4期13卷 102-106页

作者： Cui Mao-chang, Hu Dun-xin institute of Oceanology, sciences {2. of china, Qingdao 2.6071, china Key Laboratory of Marine Science and Numerical Modeling, State Oceanic Administration, Qingdao 2.6003, china institute of Oceanology Sciences Academy of China

The horizontal flux of biogenic elements through PN section in April 1994 was calculated in the present paper using output of the OPYC model, which is a very general global model solving the full primitive equations forced by the atmospheric wind stress, observed heat flux, freshwater flux and cloudiness including a sea ice model both poles with rheology. However, since it is a global model, its resolution is rather coarse, less than 1°×1° horizontally and only 1 layer on continental shelf and 7 layers in the Okinawa Trough. We reconstructed the velocity profiles by ocean current modes evaluated from the hydrographic data along PN section and then used it to determine the flux of biogenic elements with the data collected during the Japanese cruise K94-04. The results shown that the volume transport was about 33×10 12. cm 3/s consistent with the OPYC model output, the maximum nitrate and phosphate flux densities were right on the shelf margin at the depth of about 300 m with the total fluxes 1.95×10 5 and 0.15×10 5 mol/s, respectively, the maximum dissolved oxygen and total carbon dioxide flux densities were on the surface layer near western side of the shelf margin and in the thermocline near the eastern side of the shelf margin with the total fluxes 1.43×10 8 L/s and 0.69×10 8 mol/s,respectively, through PN section in April 1994.

关键词： flux of biogenic elements PN section OPYC model ocean current modes

Study on Vetiver's Purification for Wastewater from Pig Farm

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Study on Vetiver's Purification for Wastewater from Pig Farm

Study on correlation between humic acid and selenium in Kaschin-Beck disease areas

作者： Xuhui Kong~2.Weiwen Lin~2.Biqing Wang~1 Fuhe Luo~2.(1.Floricultural Research institute of Guangdong academy of Agricultural {2.,Guangzhou 510640,china 2.Guangdong academy of Agricultural {2.,Guangzhou 510640,china)

Nitrogen,phosphorus and heavy metals from pig farms are key sources of water *** contains nitro-gen and phosphorus which are the most important plant nutrients,but is harmful when applied to agricultural land in excessamounts,thereby leading to pollution of ground water by nitrates,surface water by phosphorous(causing eutrophication)and soil byheavy metals such as copper which are used as growth promoters in the feed *** main objective of this paper was to investi-gate the effects of vetiver(Vetiver zizanioides)in purifying wastewater from pig farms and design a purifying system for pig farmswith a Vetiver bamboo *** results showed that Vetiver had a very high capacity to purify ***’s ratio of uptake andpurification to Cu and Zn>90%,to As and N>60%,to P was between 59～85%,to Pb was between 30～71%,and to Hg wasbetween 13～58%.The purifying effects of Vetiver to heavy metals,N,and P from pig farms were ranked as Zn>Cu>As>N>P>Pb>*** is powerful to remove the elements of Cu,Zn,As and N for pig farms.

关键词： pig farm wastewater uptake purify Vetiveria zizanioides heavy metals

来源： cnki会议评论

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Journal of Environmental sciences 1991年第4期3卷 102-107页

作者： Zhang Xuelin, Ren Shufen, Li Wencheng,Wang Wensheng, Wang Jinda, Wang Wenjun,and Zhang Yuxiachangchun institute of Geography,Chinese academy of {2.,Changchun,china

The relationship between humic acid and selenium content was studied in this research. The results of calculation showed that there is more humic acid and less selenium in Kaschin-Beck disease areas in china. Fulvic acid in soil could increase selenium level in plants. The chemical bonding between humic acid and selenium was observed with an I.R. spectroscope. It was remarkable for the changes of absorption peak and frequency in 1100-1000 cm-1, 900-700 cm-1.

关键词： humic acid selenium Kaschin-Beck disease.

Intensity Exaggeration of Endohedral Metallofullerenes in Laser Desorption-Ionization Time-of-Flight Mass Spectrometry

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Chinese Chemical Letters 1998年第8期9卷 761-764页

作者： Da Yong SUN Wen Guo XU and Shu Ying LIU(The No. 9 Laboratory, Changchun institute of Applied Chemistry,Chinese academy of {2., Changchun 13002.) No. 9 Laboratory Changchun Inst. of Applied Chemistry Chinese Academy of Sciences Changchun 13022 China

The laser-desorption-ionization time-of-flight mass spectrometry and desorption-electron-ionization mass spectrometry were employed for the characterization of metallofullerenes extract. it was found that the relative intensities of metallofullerenes in this positive-ion, negative-ion LD-TOF MS and DEI MS were much different. This phenomenon should have relationship with the peculiar ionization energies and electron affinities of metallofullerenes.

关键词： metallofullerenes LD-TOF MS