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| 1 | Geochemistry and mineralogy of the Late Permian coals from the Songzao Coalfield, Chongqing, southwestern China显示文摘Mineralogy and geochemistry of the four main workable coal seams (No.6, No.7, No.8, and No.11) of Late Permian age from the Songzao Coalfield, Chongqing, Southwest China, were examined using in- ductively coupled plasma-mass spectrometry (ICP-MS), X-ray fluorescence spectrometry (XRF), cold-vapor absorption spectrometry (CV-AAS), ion-selective electrode (ISE), scanning electron mi- croscopy equipped with an energy-dispersive X-ray spectrometer (SEM-EDX), and X-ray diffraction analysis (XRD). The results showed that the main workable No.8 Coal that accounts for about 60% of the total coal reserves in the Songzao Coalfield was not enriched in hazardous trace elements. The No.11 Coal has high concentrations of alkaline elements, Be (9.14 μg/g), Sc (12.9 μg/g), Ti (9508 μg/g), Mn (397 μg/g), Co (23.7 μg/g), Cu (108 μg/g), Zn (123 μg/g), Ga (32 μg/g), Zr (1304 μg/g), Nb (169 μg/g), Hf (32.7 μg/g), Ta (11.4 μg/g), W (24.8 μg/g), Hg (0.28 μg/g), Pb (28.1 μg/g), Th (24.1 μg/g), and rare earth elements (509.62 μg/g). The concentration of Nb and Ta in the No. 11 Coal is higher than the industrial grade, and their potential utilization should be further studied. Besides pyrite, quartz, calcite, and clay minerals, trace minerals including chalcopyrite, marcasite, siderite, albite, mixed-layer clay minerals of illite and smectite, monazite, apatite, anatase, chlorite, and gypsum were found in the No.11 Coal. It should be noted that alabandite of hydrothermal origin and anatase occurring as cement were identi- fied in coal. In addition, the clayey microbands derived from alkaline volcanic ashes were identified in the coal. The dominant compositions of these clayey microbands were mixed-layer clay minerals of illite and smectite, which were interlayered with organic bands. The modes of occurrence of alkaline volcanic ash bands indicate that the volcanic activities were characterized by the multiple eruptions, short time interval and small scale for each eruption during peat accumulation. The alkaline volcanic ashes were the dominant factors for the enrichment of alkaline elements, Nb, Ta, Zr, Hf, and rare earth elements, and the sulfide minerals are the main carriers of Ga, Cu, and Hg in the No. 11 Coal. | DAI ShiFeng1,2, ZHOU YiPing3, REN DeYi1, WANG XiBo1, 2, LI Dan1, 2 & ZHAO Lei1, 2 1 State Key Laboratory of Coal Resources and Safe Mining (China University of Mining and Technology), Beijing 100083, China 2 Department of Resources and Earth Science, China University of Mining and Technology, Beijing 100083, China 3 Kunming Research Institute of Coal Science, Kunming 650041, China | 2007 | Science China Earth Sciences2007，50，5： | 27 |
| 2 | The formation mechanism of high-quality dolomite reservoir in the deep of Puguang Gas Field显示文摘The discovery of Puguang Gas Field provides the exploration of China deep marine carbonate rock with important references.In Puguang Gas Field,the dolomite reservoirs discovered in the deep are the best in the present of China,which present big thickness and wide-range distribution,and develop abundant secondary porosity.The researches show that Puguang Gas Field bears the characteristics of early gas-filling time,deep burial,high matured organic matter and long-term interaction of hydrocarbon(oil and gas)-water-rock(carbonate reservoir).The developments of secondary pores in this area are affected by multiple diagenesis and their formation mechanisms are complicated.Through the research on depositional environment,sedimentary facies and reservoir porosity characters of Changxing and Feixianguan Formations,it is thought that high-quality dolomite reservoirs of Puguang Gas Field form on the favorable sedimentary facies belts,which are the integrate result affected by several factors including superficial corrosion,burial corrosion,overpressure and tectonic movement,among which burial corrosion of TSR to reservoir and overpressure formed by thermal evolution of organic matter have great effect on the formation of secondary porosity of Changxing and Feixianguan Formations. | MA YongSheng 1 ,GUO TongLou 1 ,ZHAO XueFeng 2 &CAI XunYu 1 1 Southern Exploration&Production Company,Sinopec,Kunming 650200,China 2 China University of Mining and Technology,Beijing 100083,China | 2008 | Science China Earth Sciences2008，51，S1： | 19 |
| 3 | STUDY ON THE SHOCK WAVE CRYSTALLIZATION OF AMORPHOUS ALLOYS BY DSC显示文摘Shock wave and annealing crystallization of amorphous alloys FeSiB, FeMoSiB andFeCuNbSiB were studied by isothermal and non-isothermal DSC technique. It wasfound that the shock wave crystallization is very perfect, the fraction crystallized isvery close to 100%, though the period of crystallization is very short, only about10-4-10-6 s. Their produced phases differ from the parent phase in structure andcomposition. The high velocity of the transformation is very difficult to explain by thediffusion theory of solid state phase transition. | H. Y. Zhao, H. Wang, Q.J. Liu, J.D. Kan and Z.Q. LiuDepartment of Materials Science and Engineering, Yunnan University, Kunming 650091, China | 2002 | Acta Metallurgica Sinica(English Letters)2002，15，5： | 18 |
| 4 | Effect of caffeic acid phenethyl ester on proliferation and apoptosis of hepatic stellate cells in vitro显示文摘AIM: To investigate the role of nuclear factor-κB (NF-κB)inhibitor caffeic acid phenethy1 ester (CAPE) in the proliferation, collagen synthesis and apoptosis of hepatic stellate cells (HSCs) of rats.
METHODS: The HSCs from rats were isolated and cultured in Dulbecco's Modified Eagle's Medium (DMEM) and treated with CAPE. The proliferation and collagen synthesis of HSCs were determined by 3H-TdR and 3H-proline incorporation respectively, and the expression of type Ⅰ, Ⅲ procollagen genes was further explored byin situ hybridization. Apoptosis cell indices (AIs) were examined using terminal deoxynucleotidyl transferase- mediated DIG-dUTP nick end labeling (TUNEL).
RESULTS: Tn activated HSC in culture, CAPE significantly inhibited 3H-TdR and 3H-proline incorporation by HSCs at concentrations of 5 μmol/L and 10 μmol/L respectively. CAPE also reduced the type I procollagen gene expression (P<0.05)at higher concentration. Apoptosis of HSC was induced by CAPE and the AIs were time-and dose-dependently increased from 2.82+0.73 % to 7.66±1.25 % at 12 h (P<0.01) and from 3.15±0.88 % to 10.6L±2.88 % at 24 h (P<0.01).
CONCLUSION: CAPE inhibits proliferation and collagen synthesis of HSC at lower concentration and induces HSC apoptosis at higher concentration. | Wen-Xing Zhao Jing Zhao Chong-Li Liang Bing Zhao Rong-Qing Pang Xing-Hua Pan Medical Laboratory of Kunming General Hospital,Chengdu Command,Kunming 650032,Yunnan Province,China | 2003 | World Journal of Gastroenterology2003，9，6： | 12 |
| 5 | PERFORMANCE ANALYSIS OF POLLING SYSTEMS WITH LIMITED SERVICE显示文摘This paper analyzes a queue mode] of the polling system with limited service (K=1) in discrete time. By the imbedded Markov chain theory and the probability generating function method, the mean values of queue length and message waiting time are explicitly obtained. Also, we give the simulation results. The results obtained by H. Tagai (1985) are revised. | Zhao Dongfeng Li Bihai Zheng Sumin(Department of Information and Electronic Science, Yunnan University, Kunming 650091) | 1998 | Journal of Electronics(China)1998，15，1： | 12 |
| 6 | Sonochemical effect of a bifrequency irradiation显示文摘The sonochemical effect of a bifrequency orthogonal ultrasonic irradiation has been studied by using two different detecting methods. It has been shown that the sonochemical yield produced by the bifrequency irradiation appears to be much more than the sum of the yields produced separately by the two irradiations. The bifrequency irradiation, therefore, can be expected to exert a great influence on the development of sonohemical | ZHU Changping, FENG Ruo & ZHAO Yiyun Department of Physics. Jingzhou Normal College, Jingzhou 434100, China State Key Laboratory of Modern Acoustics, Nanjing University, Nanjing 210093, China Chemistry Department of Yunnan University, Kunming 650091, Ch | 2000 | Chinese Science Bulletin2000，45，2： | 7 |
| 7 | STUDIES ON PHOTOSENSITIZED OXIDATION OF DITERPENOIDS FROM HEDYCHIUM GENUS显示文摘STUDIESONPHOTOSENSITIZEDOXIDATIONOFDITERPENOIDSFROMHEDYCHIUMGENUSQingZHAO;XiaoJiangHao;/YaoZuChen;ChengZou(DepartmentofChemis... | Qing ZHAO Xiao Jiang Hao / Yao Zu Chen Cheng Zou (Department of Chemistry,Lanzhou University, Lanzhou 730000)(Laboratory of Phytochemistry,Kunming institute of Botany,the Chinese Academy of Sciences, Kunming 650204) | 1996 | Chinese Chemical Letters1996，7，1： | 5 |
| 8 | Two new cyclopeptides from stellaria yunnanensis显示文摘In the previous papers, we reported the isolation and structural elucidation of three new cyclopeptides, namely stellarin A, B and C, from the fresh roots of stellaria yunnanensis Franch. In a continued study on this plant, other two new cyclopeptides named stellarin D(1) and E(2) were obtained and their structures were established to be cyclo (Gly-Tyr-Leu-Phe-Pro-Ile-Pro)(1), cyclo(Gly-Ile-Pro-Tyr-Ile-Ala-Ala)(2), respectively. | ZHAO, Yu-Rui WANG, Xian-Kai ZHAO, Tong-FangDepartment of Medicinal Chemistry of Natural Products, School of Pharmacy, West China University of Medical Sciences, Chendu, Sichuan 610041, ChinaZHOU, JunLaboratory of Phytochemistry, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan 650204, ChinaHUANG, Xiao-Lin WU, Hou-MingState Key Laboratory of Bio-Organic & Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032,China | 1995 | Chinese Journal of Chemistry1995，13，3： | 5 |
| 9 | Microvessel density at different levels of normal or injured bile duct in dogs and its surgical implications显示文摘BACKGROUND:Ischemic recurrent stricture after surgical repair for iatrogenic bile duct injury(BDI)remains a challenge in clinical practice.The present study was designed to investigate whether ischemia is universal and of varied severity at different levels of the proximal bile duct after BDI. METHODS:A total of 30 beagle dogs were randomly divided into control,BDI,and BDI-repaired groups.The BDI animal model was established based on the classic pattern of laparoscopic cholecystectomy-related BDI.The animals were sacrificed on postoperative day 15,and bile duct tissue was harvested to assess microvessel density(MVD)at selected levels of the normal,post-BDI and BDI-repaired bile duct with the CD34 immunohistochemistry technique. RESULTS:In the control group,MVD at level H(high level) was remarkably higher than that at level L(low level).No significant difference was found between MVDs at levels H and M(middle level),as well as at levels M and L.However, the tendency was noted that the closer the level to the hilus, the greater the MVD at that level.In both the BDI and BDI-repaired groups,MVDs at level H were generally greater than those at level L,despite the unremarkable differences between MVDs at neighboring levels.In these two groups,a similar tendency of MVD distribution to that in the control group was found;the closer the level to the injury site,the lower was the MVD at that level.Moreover,compared with the MDVs at the levels M and L in the control group,MVDs at the corresponding levels in the BDI and BDI-repaired groups were all remarkably reduced(P<0.05).In addition,MVDs at all three levels in the BDI group significantly declined further after BDI repair.CONCLUSIONS:After BDI,universal ischemic damage in the injured proximal bile duct develops close to the injury site, while close to the hilus,ischemia is relatively slight.High hepaticojejunostomy,rather than low biloenterostomy or end-to-end duct anastomosis,should be recommended for BDI repair.Great care should be taken to protect the peribiliary plexus during repair. | Lin Geng,Ding Luo,Hao-Chun Zhang,Liang-Song Zhao and De-Ke Qing Department of Hepatobiliary Surgery,Kunming General Hospital of PLA,Kunming 650032,China | 2011 | Hepatobiliary & Pancreatic Diseases International2011，10，1： | 4 |
| 10 | A New Sesquiterpene Lactone from Ainsliaea bonatii显示文摘A new sesquiterpene lactone, Ainsliaolide A, was isolated from Ainsliaea bonatii. The structure was determined on the basis of spectral data. | Jian Xin PU Jing Feng ZHAO Xiao Dong YANG Shuang Xi MEI Hong Bin ZHANG Liang LI School of Pharmacy, Yunnan University, Kunming 650091 | 2004 | Chinese Chemical Letters2004，15，12： | 4 |
| 11 | Benzylphenethylamine Alkaloids from the Bulbs and Flowers of Lycoris radiata显示文摘Objective To study the benzylphenethylamine alkaloids from the bulbs and flowers of Lycoris radiata.Methods Alkaloids were isolated by various column chromatographic methods and their structures were identified by spectral data.Results Fifteen known benzylphenethylamine alkaloids were isolated and identified as lycoramine(1),O-demethyllycoramine(2),N-demethyllycoramine(3),galanthamine(4),lycorine(5),caranine(6),ungminorine(7),narciclasine(8),5-hydroxy-10-O-demethyl-homolycorine(9),hippeastrine(10),ungerine(11),hippeastrine N-oxide (12),O-demethylhaemanthamine(13),haemanthidine(14),and 8-demethoxyhostasine(15).Conclusion Compound 15 is first isolated from the plants in Amaryllidaceae,compounds 3,6,9,and 11 are first reported from the plants in Lycoris Herb.,and compounds 2,7,and 14 are isolated from L.radiata for the first time.The1 3C-NMR data of compouds 3,7,and 12 are first reported in the present study.Furthermore,the galasine-type alkaloid is isolated from the plants of Lycoris Herb.for the first time. | WANG Huan1,2,3,WANG Yue-hu2,ZHAO Fu-wei2,HUANG Qiao-qin2,3,XU Jin-jin2,3,MA Li-juan1,2,LONG Chun-lin1,2 1.College of Life and Environmental Sciences,Minzu University of China,Beijing 100081,China 2.Key Laboratory of Economic Plants and Biotechnology,Kunming Institute of Botany,the Chinese Academy of Sciences,Kunming 650204,China 3.Yunnan Agricultural University,Kunming 650201,China | 2011 | Chinese Herbal Medicines2011，3，1： | 4 |
| 12 | HETEROPHYLLIN-A AND B,TWO CYCLOPEPTIDES,FROM THE ROOTS OF PSEUDOSTELLARIA HETEROPHYLLA显示文摘Two cyclopeptides,heterophyllin A and B,have been isolated from the rootsof Pseudostellaria heterophylla.Their structures were elucidated by chemical,spectroscopic,and enzymatic methods. | Ning Hua TAN Shou Xun ZHAO a Department of Phytochemistry,China Pharmaceutical University,Nanjing,210009 Jun ZHOU Hong Jie ZHANG De Zu WANG Chang Xiang CHEN Xiao Zhu LIU b Laboratory of Phytochemistry,Kunming Institute of Botany,Academia Sinica,Kunming,650204 | 1992 | Chinese Chemical Letters1992，3，8： | 4 |
| 13 | STELLADELIN D,A NEW CYCLIC UNDECAPEPTIDE FROM STELLARIA DELAVAYI显示文摘STELLADELIND,ANEWCYCLICUNDECAPEPTIDEFROMSTELLARIADELAVAYI￥YuRuiZHAO;JunZHOU;XianKaiWANG;XiaoLinHUANG;HouMingWU;ChangXiangCHEN... | Yu Rui ZHAO Jun ZHOU Xian Kai WANG Xiao Lin HUANG Hou Ming WU Chang Xiang CHENG (Depepartment of Medicinal Chemistry of Natural Products,School ofPharmacy, West China University of Medical Sciences,Chengdu, 610041)(Laboratory of Phytochemistry,Kunming I | 1996 | Chinese Chemical Letters1996，7，3： | 4 |
| 14 | New Dopamine Derivative from Lycium Barbarum显示文摘A new dopamine derivative, lyciumide A, was isolated from the fruits of Lyciumbarbarum. Its structure was elucidated as p-methoxy-cis-cinnamoyl dopamine by spectral methods. | Cheng ZOU Qing ZHAO Chang Xiang CHEN Yi Neng HE(Faculty of Pharmacy, Kunming Medical College, Kunming 650031)(Yunnan College of Traditional Chinese Medicine, Kunming 650200)(Laboratory of Phytochemistry, Kunming Institute of Botany, the Chinese Academy | 1999 | Chinese Chemical Letters1999，10，2： | 3 |
| 15 | The periodicity of 3C 273's radio light curve at 15 GHz found by the wavelet method显示文摘We analyze the radio light curve of 3C 273 at 15 GHz from 1963 to 2006 taken from the database of the literature,and find evidence of quasi-periodic activity.Using the wavelet analysis method to analyze these data,our results indicate that:(1) There is one main outburst period of P1=8.1±0.1 year in 3C 273.This period is in a good agreement with Ozernoi's analysis in optical bands.(2) Based on the possible periods,we expect the next burst in 2014 October. | ZHANG HaoJing1,2,ZHAO Gang1,ZHANG Xiong3 & BAI JinMing4 1 National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100012,China 2 Graduate University of Chinese Academy of Sciences,Beijing 100049,China 3 Department of Physics,Yunnan Normal Univeristy,Kunming 650092,China 4 National Astronomical Observatories/Yunnan Observatory,Chinese Academy of Sciences,Kunming 650011,China | 2010 | Science China(Physics,Mechanics & Astronomy)2010，53，S1： | 3 |
| 16 | Simultaneously optimizing pore morphology and enhancing mechanical properties of Al-Si alloy composite foams by graphene nanosheets显示文摘The integrity and regularity of pore morphology play an important role in determining the mechanical properties of the metallic foam materials.The conventional methods on refining pore morphology are mainly focused on the optimization of fabrication techniques,however,they are usually inconvenient and complicated.Recently,incorporating nano reinforcement is considered to be a suitable way to fabricate metallic composite foams accompanied by optimized pore morphology and enhanced mechanical properties.In this work,through a facile and rapid powder metallurgy foaming method,the aluminum-silicon(Al-Si)alloy composite foams reinforced by graphene nanosheets(GNSs)are successfully fabricated.The microstructure analyses reveal that,for the Al-Si alloy foams incorporating the GNSs(GNSs/Al-Si composite foams),the pore size is transformed to be smaller,the pore size distributions become more homogeneous and the pore shape is also refined to a regular and roundish state.Meanwhile,the shape of Si precipitates is found transforming from an irregular long strip(length of~20μm,width of~5μm)to a fine particle state(diameter of~5μm).Moreover,the compressive testing results show that,the 0.4wt%GNSs/Al-Si composite foams own the optimal compression stress of 11.7±0.5 MPa,plateau stress of 10.0±1.0 MPa and energy absorption capacity of 6.8±0.7 MJ/m^(3),which have improvement of 58.1%,53.8%and 51.1%in comparison with the Al-Si alloy foams counterpart,respectively.The present findings may pave a new way for developing new generation of metallic composite foams that with stable microstructure and excellent mechanical performance. | Weiting Li Xudong Yang Kunming Yang Chunnian He Junwei Sha Chunsheng Shi Yunhui Mei Jiajun Li Naiqin Zhao | 2022 | Journal of Materials Science & Technology2022，，6： | 3 |
| 17 | A NEW CYCLOPEPTIDE FROM ARENARIA JUNCEA显示文摘A NEW CYCLOPEPTIDE FROM ARENARIA JUNCEAANEWCYCLOPEPTIDEFROMARENARIAJUNCEAYuRuiZHAO;JunZHOU;XianKaiWANG;XiaoLinHUANG;HouMingWU... | Yu Rui ZHAO Jun ZHOU Xian Kai WANG Xiao Lin HUANG Hou Ming WU Tong Fang ZHAO(Department of Medicinal Chemistry of Natural Products, School of Pharmacy, West China University of Medical Sciences. Chengdu, 610041)(Laboratory of Phytochemistry, Kunming I | 1994 | Chinese Chemical Letters1994，5，9： | 2 |
| 18 | Immediate-early gene product ICP22 inhibits the trans-transcription activating function of P53-mdm-2显示文摘As a product of HSVI immediate-early gene, ICP22 is capable of interacting with various cellular tran-scriptive and regulatory molecules during viral infection so as to impact the normal cellular molecular mechanism. ICP22 expressed in transfected cells can push the cells’ entering into S phase with binding to mdm-1 promoter region and impact its trans-transcription activating effect by P53. Consequently, the MDM-2 binds to P53, and the degradation effects by the ubiquitous pathway are decreased, improving indirectly the P53 levels in cells and making the cells progress into the S phase. | GUO HongXiong, CUN Wei, LIU LongDing, WANG LiChun, ZHAO HongLing, DONG ChengHong & LI QiHan Department of Viral Immunology, Institute of Medical Biology, CAMS and PUMC, Kunming 650118, China These authors contributed equally to this work | 2007 | Science China(Life Sciences)2007，50，4： | 2 |
| 19 | Diacylated Triterpenoid Saponin from Silene szechuensis显示文摘TherootofSileneszechuensisisaChinesetTaditionalmedicinewhichcanbeusedtotreatgaStralgia’.Fromethanolicextractoftheplantanewdiacylatedtriterpenoidsaponin,silenosidel,wasisolated.Thestructureofthesaponinwaselucidatedafterderivatives2~10wereobtained.Sele... | Cheng ZOU Jia Xiong JIANG Chang Xiang CHEN Jun ZHOU Qing ZHAO(Faculty of Pharmacy, Kunming Medical College, Kunming 650031)(Kunming Institute of Botany, the Chinese Academy of Sciences, Kunming 650204)(Yunnan College of Traditional Chinese Medicine. Ku | 1999 | Chinese Chemical Letters1999，10，1： | 2 |
| 20 | No requirement of HCV 5'NCR for HCV-like particles assembly in insect cells显示文摘AIM: To express all three HCV structural proteins in the presence or absence of HCV 5'NCR to investigate the requirement of 5'NCR for the assembly of HCV-like particles in insect cells.METHODS: HCV structural protein encoding sequences CE1E2 and 5'NCR-CE1E2 were amplified with PCR.Recombinant baculovirus were constructed with recombinant DNA techniques. HCV structural proteins expressed in insect cells were analyzed by immunofluorescence and SDS-PAGE.Immunoprecipitation experiment of insect cell lysates with anti-E2 monodonal antibody (Mab) was carried out and the immunoprecipitated proteins were subjected to SDS-PAGE and immunoblotting with anti-C, anti-E2 Mabs and HCV positive serum. The virus-like particles in insect cells were visualized by electron microscopy (EM). The HCV-like particles were purified by sucrose gradient centrifugation and identified by EM and immune aggregation EM.RESULTS: The recombinant baculovirus reBV/CE1E2containing HCV C, E1, E2 genes and reBV/CS containing the same structural protein genes plus 5'NCR were constructed. The insect cells infected with either reBV/CE1E2or reBV/CS expressed HCV C, E1 and E2 proteins with a molecular weight of 20 kD, 35 kD and 66 kD respectively.The results of immunoprecipitation and the immunoblotting revealed the coimmunoprecipitation of C, E1, and E2proteins, indicating the interaction of HCV structural proteins expressed in insect cells. Electron microscopy of insect cells infected with reBV/CE1E2 or reBV/CS demonstrated spherical particles (40 to 60 nm in diameter)similar to the HCV virions from sera or hepatic tissues of HCV infected humans. The HCV-like particles were partially purified by sucrose gradient centrifugation, and the purified VLPs showed immuno-reactivity with anti-HCV antibodies.CONCLUSION: HCV 5'NCR is not required for the assembly of HCV-like particles in insect cells, HCV core and envelope proteins are sufficient for viral particle formation. | Wei Zhao Guo-Yang Liao Yan-Jun Jiang Shu-De Jiang, Laboratory of Vaccine Research, Institute of Medical Biology, Chinese Academy of Medical Sciences, Peking Union Medical College, Kunming 650118, Yunnan Province, China | 2003 | World Journal of Gastroenterology2003，9，10： | 1 |
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