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Chemical Research in Chinese Universities 1998年第4期14卷 80-81页

作者： HUANG Chu sheng and LI Yu lin (National Laboratory of Applied Organic Chemistry and Organic Chemical institute, Lanzhou University, Lanzhou, 730000) Lanzhou Univ Natl Lab Appl Organ Chem Lanzhou 730000 Peoples R China Lanzhou Univ Inst Organ Chem Lanzhou 730000 Peoples R China

２－Ｇｅｒａｎｙｌ－２，３，４，４－ｔｅｔｒａｈｙｄｒｏｘｙｄｉｈｙｄｒｏｃｈａｌｃｏｎｅ（１，ＡＣ－５－１），ｏｎｅｏｆａｆｅｗｎａｔｕｒａｌｏｃｕｒｉｎｇＣ－ｇｅｒａｎｙｌａｔｅｄｃｈａｌｃｏｎｅｓｉｎｎａｔ... 详细信息

２－Ｇｅｒａｎｙｌ－２，３，４，４－ｔｅｔｒａｈｙｄｒｏｘｙｄｉｈｙｄｒｏｃｈａｌｃｏｎｅ（１，ＡＣ－５－１），ｏｎｅｏｆａｆｅｗｎａｔｕｒａｌｏｃｕｒｉｎｇＣ－ｇｅｒａｎｙｌａｔｅｄｃｈａｌｃｏｎｅｓｉｎｎａｔｕｒｅ［１］，ｗａｓｉｓｏｌａｔｅ...

关键词： Geranyl 2 ,3,4 ,4 tetrahydroxdihydrochalcone 5 Lipoxygenase C geranylated chalcone

Structural Studies of 3-(1,2-O-Isopropylidene-α-D-xylosyl)-5-phenyl-1,2,4-oxadiazole

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Chinese Chemical Letters 1999年第2期10卷 117-120页

作者： Ming Long ZHANG Yu Xin CUI Ling Tai MA Li He Zhang Yang LU Bin ZHAO Qi Tai ZHENG (The National Laboratory of Natural and Biomimetic Drugs．School of Pharmaceutical Sciences， Beijing Medical University， Beijing， 100083) (institute of Materia Me Beijing Med Univ Sch Pharmaceut Sci Natl Lab Nat & Biomimet Drugs Beijing 100083 Peoples R China Chinese Acad Med Sci Inst Mat Med Beijing 100050 Peoples R China Peking Union Med Coll Beijing 100050 Peoples R China

1、2－O－Isopropylidene－3－C－cyano－5－O－benzoyl－α－D－xylose 2 was preparedstereoselectively from 1，2－O－isopropylidene－3－oxo－5－O－benzoyl－α－D－xylose *** structure of 2was studied by two－dimensional NMR spectroscopy in conjunction with X－ray crystallography of itscorresponding 5－phenyl－1，2，4－oxadiazole isocarbonucleoside derivative 3． The absoluteconfigurations of 2 and 3，and conformation of 3 are described herein．

关键词： 5-Phenyl-1,2,4-oxadiazole isocarbonucleoside stereoselectivity NMR spectroscopy X-ray crystallography

Sorption enhanced catalytic CF4 hydrolysis with a three-stage catalyst-adsorbent reactor

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Frontiers of Chemical Science and Engineering 2017年第4期11卷 537-544页

作者： Han, Jae-Yun Kim, Chang-Hyun Nam, Sung-Chan Ryi, Shin-Kun Lee, Boreum Lim, Hankwon Jung, Ho-Young Lee, Kwan-Young Korea inst Energy Res Adv Mat & Devices Lab Daejeon 34129 South Korea Catholic Univ Daegu Dept Adv Mat & Chem Engn Gyeongbuk 38430 South Korea Chonnam natl Univ Dept Environm & Energy Engn Gwangju 61186 South Korea Korea Univ Dept Chem & Biol Engn Seoul 136701 South Korea

In this study, we developed a three-stage catalyst-adsorbent reactor for the catalytic hydrolysis of CF4. Each stage is composed of a catalyst bed followed by an adsorbent bed using Ca（OH）2 to remove HF. The three stages are connected in series to enhance the hydrolysis of CF4 and eliminate a scrubber to dissolve HF in water at the same time. With a 10 wt-% Ce/AlaO3 catalyst prepared by the incipient wetness method using boehmite and a granular calcium hydroxide as an adsorbent, the CF4 conversion in our proposed reactor was 7%-23% higher than that in a conventional single-bed catalytic reactor in the temperature range of 923-1023 K. In addition, experimental and numerical simulation （Aspen HYSYS） results showed a reasonable trend of increased CF4 conversion with the adsorbent added and these results can be used as a useful design guideline for our newly proposed multistage reactor system.

关键词： PFCs catalytic hydrolysis calcium hydro-xide sorption enhanced process simulation

High-Efficiency Genome Editing in Arabidopsis Using YAO Promoter-Driven CRISPR/Cas9 System

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Molecular Plant 2015年第12期8卷 1820-1823页

作者： Yan, Liuhua Wei, Shaowei Wu, Yaorong Hu, Ruolan Li, Hongju Yang, Weicai Xie, Qi Chinese Acad Sci State Key Lab Plant Genom Natl Ctr Plant Gene Res Inst Genet & Dev Biol Beijing 100101 Peoples R China Univ Chinese Acad Sci Coll Life Sci Beijing 100049 Peoples R China

Dear Editor Targeted genome-editing tools are very important and efficient for plant functional genomics research, especially when proper mutants are not available. CRISPR/Cas9-based genome edit- ing is a recently developed powerful technology derived from the bacterial clustered regularly interspaced short palindromic repeats （CRISPR）/CRISPR-associated （Cas） defense system,

关键词： Genome editing Arabidopsis CRISPRs (Genetics)

Remanufacturing Shaping System Based on Pulsed Plasma Arc Welding

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稀有金属材料与工程 2012年第S1期41卷 152-155页

作者： Xu Fujia Xu Binshi Lv Yaohui Xiang, Wu Peng, He Liu Yuxin Harbin inst Technol State Key Lab Adv Welding & Joining Harbin 150001 Peoples R China Acad Armored Forces Engn Natl Key Lab Remfg Beijing 100072 Peoples R China Dalian Maritime Univ Automat Res Ctr Dalian 116026 Peoples R China

Based on the pulsed plasma arc welding(PPAW),a rapid remanufacturing shaping system,including a structured light scanning reverse engineering(RE)system,a robot system and a PPAW source system have been *** new rapid remanufacturing shaping system can rapidly and accurately repair the worn parts with different damaged degrees and thus extend their life *** the present paper,the whole process of repairing worn parts is ***,the scanning model of a worn part is obtained by using RE system based on reconstructing *** with standard CAD model in the undamaged setting,the surface profile and the extent of damage area are ***,the weld repair path is designed by slicing the point cloud model of damage *** path consists of multilayer parallel lines that produce parallel overlapped weld beads which cover the damaged *** off-line programming techniques,the robot executable program as document format is transmitted to the robot controller for repairing worn ***,the weld repair experiments on worn steel plane plate and damaged column are performed to evaluate the remanufacturing system.

关键词： remanufacturing system pulsed plasma arc welding structured light scanning repair path

A NEW REARRANGED ABIETANE DITERPENOID FROM CARYOPTERIS INCANA(THUNB)MIQ

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Chinese Chemical Letters 1996年第7期7卷 621-622页

作者： Gao, JJ Han, GQ Yan, JF Wu, Y BEIJING MED UNIV NATL LAB NAT & BIOMIMET DRUGSBEIJING 100083PEOPLES R CHINA RES inst CHEM DEF ANALYT CHEM LABBEIJING 100083PEOPLES R CHINA LANZHOU UNIV STATE KEY LAB APPL ORGAN CHEMLANZHOU 730000PEOPLES R CHINA

A new rearranged abietane diterpenoid, incanone was isolated from the whole plant of Caryopteris incana (Thunb.) Miq. On the basis of HRMS, EIMS, (1)HNMR, (13)CNMR, DEPT, H-1-H-1 COSY, HMQC, HMBC and NOESY, incanone w...

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An Improved and Efficient Preparation of the Chiral NAD(P)H Model (S_s)-1-Benzy1-3-(p-tolylsulfinyl)-1,4-dihydropyridine

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Chinese Chemical Letters 2000年第3期11卷 209-212页

作者： Jing LI, You Cheng LIU, Jin Gen DENG (Department of Chemistry. University of Science and Technology of China, Hefei 230026 Chengdu institute of Organic Chemistry. Chinese Academy of Sciences. Chengdu 610041 National Laboratory of Applied Organic Chemis Department of Chemistry Univ. of Sci. and Technol. of China Hefei 230026 China natl. Lab. of Appl. Organ. Chemistry Department of Chemistry Lanzhou University Lanzhou 730000 China Chengdu inst. of Organic Chemistry Chinese Academy of Sciences Chengdu 610041 China

An improved procedure for the preparation of China, BAD(P)H model. (S_s)- 1 -benzyl-3- (p-tolylsulfinyl)-1.4-dihydropyridine with satisfactary chemical yield and excellent enantiopurity is reported.

关键词： Chiral NAD(P)H models (S_s )-1-benzyl-3-(p-tolylsulfinyl)-1,4-dihydropyridine.

A new type of Shipboard Meteorological Satellite Receiving-processing System

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Acta Oceanologica Sinica 2000年第1期19卷 35-46页

作者： Xie Simei Hao Chunjiang Zou Bin Jing Qiyi Liao Xiaohong Sheng Xiaowen Zhang Canrong (1. National Research Center for Marine Environment Forecasts, Beijing 100081, China 2, Second institute of China Aerospace Corporation 3. Beijing Chuanyi Electric Compan natl. Res. Ctr. Mar. Environ. F. Beijing 100081 China Second inst. of China Aerosp. Corp. China Beijing Chuanyi Electric Company Chinese Academy of Sciences Beijing China

The Shipboard Meteorological Satellite Receiving-processing System (SMSRPS) is specially developed for the navigation meteorological safeguard of the Antarctic exploration ship over the sea ice area of the forth Ocean. This system can suit to the climate environment of very high temperature high moisture and very low temperature - supersaturation; it has a self-protection ability to against the hurricane - force wind over force 12 and the strong vibration during icebreaking, as well as strong magnetic disturbance. It has two sets of receiving-imagery processing systems for polar orbit low-resolution and quasi-stationary high-solution satellites. The key creation Points of this system are as follows: 1. the active gyro-control stabilization platform and a mixed mounting system of three rotating a - B and x -- y axes are used. It solved the tracing difficulties both in the low elevation angle and very high elevation angle of polar-orbit satellite, even in the status of ship moving with continuously changing its poition, direction and ship roll and pitch. 2. Imagery processing subsystem. The newest BORLAND-- DELPHI language and PASCAL language pro gramming software are used under WINDOWS 95 environment. It has a dynamic positioning nested-grid system and electric mapping grid data system. It can show the latitude-longitude of any point on the map, and marks any object such as ship, station or island, and draws the route. It can monitor cloud and temperature, forest fire, anomalous change of ocean and land. It can output satellite cloud maps of 24 bit with very high clarity. This system is very advanced in technique for the whole structure with the features of small volume, light weight and very low cost. It suits to very bad climate and ocean environment. Its imagery process ing system has complete functions with high resolution and being very easy to operate. It is not only suit to land use, but also and specially to all kinds of ship over the sea. It can be exte

关键词： Shipboard Meteorological Satellite Receiving-processing System imagery processing system active gyro-control platform

Tb￣(3+) as Fluorescent Probe in the Study of the Interaction of Other Lanthanide Ions with Trichosanthin

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Chemical Research in Chinese Universities 1995年第4期11卷 279-283页

作者： HAO Qiang LI Wen-lian ZHANG Yan YU Gui YANGHong ZHAO Xu YAO Qi-Zhi and LI Qing-shan(Department of Molecular Biofogy and National Laboratory of enzyme engineering,Jiln University,Changchun, 130023)(Changchun institute of Physics, Academia Sinica, Cha JILIN UNIV DEPT MOLEC BIOLCHANGCHUN 130023PEOPLES R CHINA JILIN UNIV NATL LAB ENZYME ENGNCHANGCHUN 130023PEOPLES R CHINA ACAD SINICA CHANGCHUN INST PHYSCHANGCHUN 130023PEOPLES R CHINA ACAD SINICA GRAD SCHBEIJING 100039PEOPLES R CHINA

he interaction of lanthanide (Ln￣(3+))ions with trchosanthin(TCS)was investi-gated using Tb￣(3+) as fluorescent probe. The metal-binding sites of the protein were probed by means of adding the Tb￣(3+) into the protein solutions. If other Ln￣(3+) ions exist in the Tb￣(3+) protein complex system, they would compete against Tb￣(3+) in the binding sites of the protein, and so the fluorescence intensity of Tb￣(3+) decreased,which is called quenching *** quencliing effect is related to the ionic radii of the Ln￣(3+) ions and energy transfer from Tb￣(3+) protein to Ln￣(3+) ions. Based on the ex- perimental results,a schematic of the energy transfer from protein-Tb￣(3+) complex to protein-Ln￣(3+) complex is suggested.

关键词： Trichosanthin Energy transfer Protein-Ln￣(3+) complex

Re-Os age for molybdenite from the Gangdese porphyry copper belt on Tibetan plateau: Implication for geody- namic setting and duration of the Cu mineralization

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Science China Earth Sciences 2004年第3期47卷 221-231页

作者： HOU Zengqian1, QU Xiaoming1, WANG Shuxian2, DU Andao2, GAO Yongfeng3 & HUANG Wei4 1. institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, China 2. National Center of Geoanalysis, Chinese Academy of Geological Sciences, Beijing 100037, China 3. Shijiazhuang College of Economy, Shijiazhuang 056000, China 4. Xizang Bureau of Geology and Mineral Resources, Lhasa 850000, China Chinese Acad Geol Sci Inst Mineral Resources Beijing 100037 Peoples R China Chinese Acad Geol Sci Natl Ctr Geoanal Beijing 100037 Peoples R China Shijiazhuang Coll Econ Shijiazhuang 056000 Peoples R China Xizang Bur Geol & Mineral Resources Lhasa 850000 Peoples R China

The Gangdese porphyry copper belt consists of one large and five middle-small deposits in addition to dozens of ore-bearing porphyry bodies. The belt trends 350 km long along the EW-striking Gangdese batholith, and locally occurs as a string of beads extending about 50 km within the SN-trending rifting zones (grabens) on the Tibetan plateau. Monzonitic granite- porphyry and quartz monzonitic porphyry, as dominant host rocks, are shoshonitic and potassic calc-alkaline. Available dating data indicate that the ages of the shallow-level emplacement for these porphyries vary from 10 Ma to 18 Ma, which are identical to that of associated potassic calc-alkaline volcanic rocks (10—15 Ma) and mafic dykes (13—18 Ma). The timing and duration of Cu mineralization events are constrained by Re-Os ages for molybdenites from three porphyry copper deposits in the Gangdese porphyry copper belt. Five molybdenite samples from the Nanmu deposit yielded an 187Re-187Os isochron with a highly pre-cise age of (14.76?.22) Ma; six molybdenites from the Chongjiang deposit gave an isochron age of (14.04?.16) Ma. Re-Os model ages for two molybdenite samples from Lakang抏 deposit vary from 13.5 Ma to 13.6 Ma, which are basically identical to isochron ages mentioned above. All the thirteen samples from these three deposits yielded a linear array in the isochron diagram with a higher correlation coefficient of 0.99719 and an isochron age of (14.39?.22) Ma (1s error), suggesting an coeval event of the Cu mineralization and a shared source of ore materials for the Gangdese porphyry copper belt. Compared with the longer-lived felsic magmatic-hydrothermal system, the Cu mineralization is a relatively short event with duration of about 0.5 Ma, and usu-ally occurs in the later-stage of the complicate magmatic system. The emplacement age of the Gangdese porphyries indicates that they intruded after the rapid rising of the Gangdese Mountains at 21—23 Ma, and formed in a post-collision crustal ex-tension env

关键词： porphyry copper deposit, Re-Os age, Gangdese, Tibetan plateau.