|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | U-Th-Pb behavior of zircons under high-grade metamorphic conditions:A case study of zircon dating of meta-diorite near Qixia,eastern Shandong显示文摘This paper carried out a study on U—Th—Pb behavior of zircons in a'dry'rock system during high-grade metamorphism in the Archean basement of eastern Shandong.The studied sample has a mineral assemblage of plagioclase + K-feldspar + clinopyroxene + biotite + quartz and its protolith is considered to be diorite.The zircons are stubby,equant or irregular in shape and show fir-leaf, sectorial,banded or oscillatory zoning.They contain inclusions,including mineral assemblages of clinopyroxene + orthopyroxene + hornblende + quartz and plagioclase + K-feldspar + biotite + quartz. Fifty SHRIMP analyses were performed on 34 zircon grains,which commonly yielded high Th/U ratios (mostly>0.5).Most analyses are distributed along concordia from 2.54 to 2.25 Ga,with the youngest age being~1.95 Ga.Compositions and ages show large variations even in a same zircon grain.Combined with early studies,conclusions can be drawn as follows:1) the diorite underwent two episodes of high-grade metamorphism.at the end of the Neoarchean and the Paleoproterozoic(~2.50 Ga and~1.95 Ga or slightly later):2) high-grade metamorphism in a'dry'rock system may partially reset the U—Th—Pb system of zircons and.in this case,the ages between the oldest and youngest | Yusheng Wan Dunyi Liu Chunyan Dong Shoujie Liu Shijin Wang | 2011 | Geoscience Frontiers2011，2，2： | 27 |
| 2 | Preliminary Scientific Results of Chang'E-1 Lunar Orbiter:Based on Payloads Detection Data in the First Phase显示文摘Chang'E-1 lunar Orbiter was launched by Long March 3A rocket from Xichang Satel-lite Launch Center at 18:05BT(Beijing Time) Oct.24,2007.It is the first step of its ambitious three-stage moon program,a new milestone in the Chinese space exploration history.The primary science objectives of Chang'E-1 lunar orbiter are to obtain three-Dimension(3D) stereo images of the lunar surface,to analyze the distribution and abundance of elements on the surface,to investigate the thickness of lunar soil,evaluate helium-3 resources and other characteristics,and to detect the space environment around the moon.To achieve the above four mission objectives,eight sets of scientific instruments are chosen as the payloads of the lunar orbiter,including a CCD stereo camera(CCD),a Sagnac-based interferometer spectrometer(ⅡM),a Laser Altimeter(LAM),a Microwave Radiometer(MRM),a Gamma-Ray Spectrometer(GRS),an X-ray spectrometer(XRS),a High-Energy Particle Detector(HPD),and two Solar Wind Ion Detectors(SWID).The detected data of the payloads show that all payloads work well.This paper introduces the status of payloads in the first phase and preliminary scientific results. | OUYANG Ziyuan JIANG Jingshan LI Chunlai SUN Huixian ZOU Yongliao LIU Jianzhong LIU Jianjun ZHAO Baochang REN Xin YANG Jianfeng ZHANG Wenxi WANG Jianyu MOU Lingli CHANG Jin ZHANG Liyan WANG Huanyu LI Yongquan ZHANG Xiaohui ZHENG Yongchun WANG Shijin BIAN Wei | 2008 | 空间科学学报2008，28，5： | 24 |
| 3 | Air route network optimization in fragmented airspace based on cellular automata显示文摘Air route network optimization,one of the essential parts of the airspace planning,is an effective way to optimize airspace resources,increase airspace capacity,and alleviate air traffic congestion.However,little has been done on the optimization of air route network in the fragmented airspace caused by prohibited,restricted,and dangerous areas(PRDs).In this paper,an air route network optimization model is developed with the total operational cost as the objective function while airspace restriction,air route network capacity,and non-straight-line factors(NSLF) are taken as major constraints.A square grid cellular space,Moore neighbors,a fixed boundary,together with a set of rules for solving the route network optimization model are designed based on cellular automata.The empirical traffic of airports with the largest traffic volume in each of the 9 flight information regions in China's Mainland is collected as the origin-destination(OD) airport pair demands.Based on traffic patterns,the model generates 35 air routes which successfully avoids 144 PRDs.Compared with the current air route network structure,the number of nodes decreases by 41.67%,while the total length of flight segments and air routes drop by 32.03% and 5.82% respectively.The NSLF decreases by 5.82% with changes in the total length of the air route network.More importantly,the total operational cost of the whole network decreases by 6.22%.The computational results show the potential benefits of the model and the advantage of the algorithm.Optimization of air route network can significantly reduce operational cost while ensuring operation safety. | Shijin WANG Xi CAO Haiyun LI Qingyun LI Xu HANG Yanjun WANG | 2017 | Chinese Journal of Aeronautics2017，30，3： | 16 |
| 4 | Optimizing aerobic biodegradation of dichloromethane using response surface methodology显示文摘Response surface methodology(RSM) was employed to evaluate the optimum aerobic biodegradation of dichloromethane(DCM) in pure culture.The parameters investigated include the initial DCM concentration,glucose as an inducer and hydrogen peroxide as terminal electron acceptor(TEA) .Maximum aerobic biodegradation effciency was predicted to occur when the initial DCM concentration was 380 mg/L,glucose 13.72 mg/L,and H2O2 115 mg/L.Under these conditions the aerobic biodegradation rate reached up to 93.18%,which was significantly higher than that obtained under original conditions.Without addition of glucose,degradation effciencies were 80%at DCM concentrations<326 mg/L.When concentrations of DCM were more than 480 mg/L,the addition of hydrogen peroxide did not help to significantly increase DCM degradation effciency.When DCM concentrations increased from 240 to 480 mg/L,the overall DCM degradation effciency decreased from 91%to 60%in the presence of H2O2 for 120 mg/L. | WU Shijin,YU Xiang,HU Zhihang,ZHANG Lili,CHEN Jianmeng College of Biological and Environmental Engineering,Zhejiang University of Technology,Hangzhou 310032,China | 2009 | Journal of Environmental Sciences2009，21，9： | 13 |
| 5 | Early Permian–Late Triassic Magmatism in the Tuotuohe Region of the Qinghai–Tibet Plateau: Constraints on the Tectonic evolution of the Western Segment of the Jinshajiang Suture显示文摘In this paper we present new zircon U–Pb ages, whole-rock major and trace element analyses, and zircon Hf isotopic data for magmatic rocks in the Tuotuohe region of the western segment of the Jinshajiang suture. Our aim is to constrain the Early Permian–Late Triassic tectonic evolution of the region. Zircons from the magmatic rocks of the Tuotuohe region are euhedral–subhedral in shape and display fine-scale oscillatory zoning as well as high Th/U ratios(0.4–4.6), indicating a magmatic origin. The zircon U–Pb ages obtained using LA–ICP–MS are 281 ± 1 Ma, 258 ± 1 Ma, 244 ± 1 Ma, and 216 ± 1 Ma, which indicate magmatism in the Early Permian–Late Triassic. A diorite from Bashihubei(BSHN) has SiO2 = 57.18–59.97 wt%, Al2O3 = 15.70–16.53 wt%, and total alkalis(Na2O + K2O) = 4.46–6.34 wt%, typical of calc-alkaline and metaluminous series. A gabbro from Bashibadaoban(BSBDB) belongs to the alkaline series, and is poor in SiO2(45.46–54.03 wt%) but rich in Al2O3(16.19–17.39 wt%) and total alkalis(Na2O + K2O = 5.48–6.26 wt%). The BSHN diorite and the BSBDB gabbro both display an enrichment of LREEs and LILEs and depletion of HFSEs, and they have no obvious Eu anomaly; they have relatively low MgO contents(2.54–4.93 wt%), Mg# values of 43 to 52, and low Cr and Ni contents(8.07–33.6 ppm and 4.41–14.2 ppm, respectively), indicating they differentiated from primitive mantle magmas. They have low Nb/U, Ta/U, and Ce/Pb ratios(1.3–9.6, 0.2–0.8, and 0.1–18.1, respectively), and their initial Hf isotopic ratios range from +9.6 to +16.9(BSHN diorite) and +6.5 to +12.6(BSBDB gabbro), suggesting their primary magmas were derived mainly from the partial melting of a mantle wedge that had been metasomatized by subduction fluids. Taking all the new data together, we conclude that the western and eastern segment of the Jinshajiang suture regions underwent identical processes of evolution in the Early Permian–Late Triassic: oceanic crust subduction before the Early Permian, continental collision during the Early–Middle Triassic, and post-collisional extension from the Late Triassic. | QIAN Ye SUN Fengyue LI Bile LI Shijin ZHAO Junwei | 2014 | Acta Geologica Sinica(English Edition)2014，88，2： | 12 |
| 6 | Partial Regularity for Two Dimensional Landau-Lifshitz Equations | Chen Yunmei Ding Shijin Guo Doling Department of Mathematics, University of Florida, Gainesville, FL32611, U.S.A. Institute of Applied Physics and Computational Mathematics, P. O. Box 8009, Beijing, 100088, China | 1998 | Acta Mathematica Sinica,English Series1998，14，3： | 12 |
| 7 | Chang'E-1 Lunar Mission:An Overview and Primary Science Results显示文摘Chang'E-1 is the first lunar mission in China,which was successfully launched on Oct.24th,2007.It was guided to crash on the Moon on March 1,2009,at 52.36°E,1.50°S,in the north of Mare Fecunditatis.The total mission lasted 495 days,exceeding the designed life-span about four months.1.37Terabytes raw data was received from Chang'E-1.It was then processed into 4Terabytes science data at different levels.A series of science results have been achieved by analyzing and applicating these data,especially 'global image of the Moon of China's first lunar exploration mission'.Four scientific goals of Chang'E-1 have been achieved.It provides abundant materials for the research of lunar sciences and cosmochemistry.Meanwhile these results will serve for China's future lunar missions. | Ouyang Ziyuan Li Chunlai Lu Chang Liu Jianzhong Zou Yongliao Zhang Hongbo Jianjun Zuo Wei Su Yah Wen Weibin Bian Wei Zhao Baochang Wang Jianyu Yang Jianfeng Chang Jin Wang Huanyu Zhang Xiaohui Wang Shijin Wang Min Ren Xin Mu Lingli Kong Deqing Wang Xiaoqian Wang Fang Geng Liang Zhang Zhoubin Zheng Lei Zhu Xinying Zheng Yongchun Li Junduo Zou Xiaoduan Xu Chun Shi Shuobiao Gao Yifei Gao Guannan | 2010 | 空间科学学报2010，30，5： | 11 |
| 8 | Geochronology, Geochemistry and Sr-Nd-Pb-Hf Isotopes of No. I Complex from the Shitoukengde Ni–Cu Sulfide Deposit in the Eastern Kunlun Orogen, Western China: Implications for the Magmatic Source, Geodynamic Setting and Genesis显示文摘The Shitoukengde Ni-Cu deposit, located in the Eastern Kunlun Orogen, comprises three mafic–ultramafic complexes, with the No. I complex hosting six Ni-Cu orebodies found recently. The deposit is hosted in the small ultramafic bodies intruding Proterozoic metamorphic rocks. Complexes at Shitoukengde contain all kinds of mafic-ultramafic rocks, and olivine websterite and pyroxene peridotite are the most important Ni-Cu-hosted rocks. Zircon U-Pb dating suggests that the Shitoukengde Ni-Cu deposit formed in late Silurian(426–422 Ma), and their zircons have εHf(t) values of-9.4 to 5.9 with the older T_(DM1) ages(0.80–1.42 Ga). Mafic-ultramafic rocks from the No. I complex show the similar rare earth and trace element patterns, which are enriched in light rare earth elements and large ion lithophile elements(e.g., K, Rb, Th) and depleted in heavy rare earth elements and high field strength elements(e.g., Ta, Nb, Zr, Ti). Sulfides from the deposit have the slightly higher δ^(34)S values of 1.9–4.3‰ than the mantle(0 ± 2‰). The major and trace element characteristics, and Sr-Nd-Pb and Hf, S isotopes indicate that their parental magmas originated from a metasomatised, asthenospheric mantle source which had previously been modified by subduction-related fluids, and experienced significant crustal contamination both in the magma chamber and during ascent triggering S oversaturation by addition of S and Si, that resulted in the deposition and enrichment of sulfides. Combined with the tectonic evolution, we suggest that the Shitoukengde Ni-Cu deposit formed in the post-collisional, extensional regime related to the subducted oceanic slab break-off after the Wanbaogou oceanic basalt plateau collaged northward to the Qaidam Block in late Silurian. | LI Liang SUN Fengyue LI Bile LI Shijin CHEN Guangjun WANG Wei YAN Jiaming ZHAO Tuofei DONG Jun ZHANG Dexin | 2018 | Acta Geologica Sinica(English Edition)2018，92，1： | 10 |
| 9 | Genetic Variation of the VP1 Gene of the Virulent Duck Hepatitis A Virus Type 1(DHAV-1) Isolates in Shandong Province of China显示文摘To investigate the relationship of the variation of virulence and the external capsid proteins of the pandemic duck hepatitis A virus type 1(DHAV-1) isolates,the virulence,cross neutralization assays and the complete sequence of the virion protein 1(VP1) gene of nine virulent DHAV-1 strains,which were isolated from infected ducklings with clinical symptoms in Shandong province of China in 2007-2008,were tested.The fifth generation duck embryo allantoic liquids of the 9 isolates were tested on 12-day-old duck embryos and on 7-day-old ducklings for the median embryonal lethal doses(ELD 50 s) and the median lethal doses(LD 50 s),respectively.The results showed that the ELD 50 s of embryonic duck eggs of the 9 DHAV-1 isolates were between 1.9 × 10 6 /mL to 1.44 × 10 7 /mL,while the LD 50 s were 2.39 × 10 5 /mL to 6.15 × 10 6 /mL.Cross-neutralization tests revealed that the 9 DHAV-1 isolates were completely neutralized by the standard serum and the hyperimmune sera against the 9 DHAV-1 isolates,respectively.Compared with other virulent,moderate virulent,attenuated vaccine and mild strains,the VP1 genes of the 9 strains shared 89.8%-99.7% similarity at the nucleotide level and 92.4%-99.6% at amino acid level with other DHAV-1 strains.There were three hypervariable regions at the C-terminus(aa 158-160,180-193 and 205-219) and other variable points in VP1 protein,but which didn't cause virulence of DHAV-1 change. | Jiming Gao Junhao Chen Xingkui Si Zhijing Xie Yanli Zhu Xingxiao Zhang Shujing Wang Shijin Jiang | 2012 | Virologica Sinica2012，27，4： | 10 |
| 10 | Experimental study on filtration and continuous regeneration of a particulate filter system for heavy-duty diesel engines显示文摘This study investigated the filtration and continuous regeneration of a particulate filter system on an engine test bench,consisting of a diesel oxidation catalyst(DOC)and a catalyzed diesel particulate filter(CDPF).Both the DOC and the CDPF led to a high conversion of NO to NO2for continuous regeneration.The filtration efficiency on solid particle number(SPN)was close to100%.The post-CDPF particles were mainly in accumulation mode.The downstream SPN was sensitively influenced by the variation of the soot loading.This phenomenon provides a method for determining the balance point temperature by measuring the trend of SPN concentration. | Tao Tang Jun Zhang Dongxiao Cao Shijin Shuai Yanguang Zhao | 2014 | Journal of Environmental Sciences2014，26，12： | 10 |
| 11 | Sequence analysis for the complete proviral genome of reticuloendotheliosis virus Chinese strain HA9901显示文摘The genomic DNA extracted from chicken embryo fibroblast (CEF) infected with a Chi-nese field isolate HA9901 of reticuloendotheliosis virus (REV) was used as the template to amplify the REV proviral genomic cDNA by PCR with 6 pairs of primers according to published sequences. Six overlapping fragments were amplified, cloned into the TA vector and sequenced, including a fragment which was amplified from the circular proviral cDNA and covering both 5′- and 3′-ends. The complete sequence of the whole genome was established and analyzed with a DNAstar software. Comparisons of the sequence with two other strains demonstrated that the genomes of REV were relatively con-servative, the homogenecity for all genes or LTR fragments of the 3 strains was over 92%, no matter whether they were isolated from different species and regions in different years. But, the homology of Chinese strain HA9901 to a fowl pox virus-associated strain from Chickens was higher than that to strain SNV isolated from ducks. | WANG Yu CUI Zhizhong JIANG Shijin | 2006 | Science China(Life Sciences)2006，49，2： | 9 |
| 12 | Optimization of Air Route Network Nodes to Avoid ″Three Areas″ Based on An Adaptive Ant Colony Algorithm显示文摘Air route network(ARN)planning is an efficient way to alleviate civil aviation flight delays caused by increasing development and pressure for safe operation.Here,the ARN shortest path was taken as the objective function,and an air route network node(ARNN)optimization model was developed to circumvent the restrictions imposed by″three areas″,also known as prohibited areas,restricted areas,and dangerous areas(PRDs),by creating agrid environment.And finally the objective function was solved by means of an adaptive ant colony algorithm(AACA).The A593,A470,B221,and G204 air routes in the busy ZSHA flight information region,where the airspace includes areas with different levels of PRDs,were taken as an example.Based on current flight patterns,a layout optimization of the ARNN was computed using this model and algorithm and successfully avoided PRDs.The optimized result reduced the total length of routes by 2.14% and the total cost by 9.875%. | Wang Shijin Li Qingyun Cao Xi Li Haiyun | 2016 | Transactions of Nanjing University of Aeronautics and Astronautics2016，33，4： | 8 |
| 13 | Recent Progress in Automotive Gasoline Direct Injection Engine Technology显示文摘Gasoline direct injection(GDI)engines are currently the dominant powertrains for passenger cars.With the implementation of increasingly stringent fuel consumption and emission regulationsworldwide,GDI engines are facing challenges owing to high particulate matter emissions and a tendency to knock,leading to a change in the research and design(R&D)issues compared with those in the twentieth century.This paper reviews the progress in research regarding GDI engine technologies over the past 20 years,focusing on combustion system configurations,and also highlights common issues in GDI R&D,including pre-ignition and deto-knock,soot formation and PM emissions,injector deposits and gasoline compression ignition(GCI).First,an overview of recent developments in the field as driven by regulations is provided,following which progress in injection and combustion systems is examined.Third,the review addresses the occurrence and mechanism of deto-knock and considers means of suppressing this phenomenon.The fourth section discusses soot formation mechanisms and particulate matter emission characteristics of GDI engines and describes the application of gasoline particulate filter(GPF)after-treatment.The subsequent section summarizes studies regarding injector deposit formation,as well as pioneering research into GCI combustion modes.Finally,a summary and future prospects for GDI engine technologies are provided. | Shijin Shuai Xiao Ma Yanfei Li Yunliang Qi Hongming Xu | 2018 | Automotive Innovation2018，1，2： | 8 |
| 14 | Inhibitory effects of the extracts with different solvents from three compositae plants on cyanobacterium Microcystis aeruginosas显示文摘The algicidal activity of the terrestrial plants is a novel and promising means for alga control of eutrophic waters.In this study,three compositae plants - Artemisia annua(A.annua),Conyza canadensis(C.canadensis),and Erigeron annuus(E.annuus) were selected and antialgal activity of petroleum ether(PE),ethyl acetate(EA) and ethanol extracts of these plants on blue algae Microcystis aeruginosa was investigated.The result shows the EA extracts of these plants present the stronger inhibitory effects.The results of the further separation of PE and EA extracts according to water-solubility and acidity or alkalinity show that fatty acids and terpenoids in A.annua,terpenoids and organic acid in C.Canadensis and E.Annuus may be the main antialgal active constituents.This study suggested that the EA extracts of these plants could become the potential algicide to prevent water blooming. | NI LiXiao HAO XiangYang LI ShiYin CHEN ShiJin REN GaoXiang ZHU Liang | 2011 | Science China Chemistry2011，54，7： | 7 |
| 15 | Differentiation and accumulation of fluids in A-type granites: Evidence from accessory mineral study显示文摘The Laoshan A-type granite is a highly evolved granite body. The study on accessoryminerals indicates that there exist differentiation and accumulation of fluids during the late stage of evolution of the granite. The released fluids are rich in rare-earth elements (REE), high-field-strength elements (HFSE, such as Nb, Ta, Zr, Hf, Th, U, and Y) and volatiles (F, P, CO2, etc.). Owing to the presence of fluid, accessory mineral assemblages have changed during the evolution of A-type granite, and are especially characterized by large amounts of independent REE-Nb-Y-Th minerals present in the late facies. Late-accumulation of fluids may be of the general feature of A-type granites, at least of highly evolved ones. | WANG Rucheng ZHAO Guangtao WANG Dezi LU Jianjun XU Shijin | 2000 | Chinese Science Bulletin2000，45，17： | 7 |
| 16 | Combination of biodiesel-ethanol-diesel fuel blend and SCR catalyst assembly to reduce emissions from a heavy-duty diesel engine显示文摘在这研究,减少 NOx 和微粒的努力有关系(下午) 从两个都使用 NOx overanAg/Al2O3 催化剂和 biodiesel-ethanol-diesel 燃料的乙醇选择的催化减小(SCR ) 的一个柴油发动机的排出物相配(柴油机) 在一张引擎凳子上,测试被讨论。与柴油相比,柴油机的使用由于下午的可溶的器官的部分(SOF ) 的增加增加了下午排出物 14% ,但是它极大地减少了 Bosch 烟数字由 60%80% 根据从欧洲静止周期(转换字符) 的 13 模式测试的结果测试。SCR 催化剂在由乙醇的 NOx 减小是有效的,并且 NOx 变换是约 73% 。全部的烃(THC ) 和公司排出物在 NOx 过程的 SCR 期间显著地增加了。二个柴油机氧化催化剂(文档) 集会在 Ag/Al2O3 变换器以后被使用移开公司和 HC。不同氧化催化剂在下午排放上出现在效果对面。下午作文分析表明在彻底的下午的氧化催化剂的网效果是 SOF 减小和下午的硫酸盐形成上的综合效果。引擎凳子测试结果显示甚至没有使用柴油机粒子过滤器(DPF ) ,柴油机和一个 SCR 催化剂集会的联合能为 NOx 和下午排出物控制提供好处。 | SHI Xiaoyan YU Yunbo HE Hong SHUAI Shijin DONG Hongyi LI Rulong | 2008 | Journal of Environmental Sciences2008，20，2： | 6 |
| 17 | Synthesis and characterization of yttrium hydroxide and oxide microtubes显示文摘有六角形的阶段 Y 的六角形的微试管(哦)3 被一个灵巧的 solvothermal 方法成功地经由一条水晶转变线路当表面活化剂或模板不在时为 12 h 在 160 ° C 综合。扫描电子显微镜学(SEM ) 结果证明准备六角形的微试管与 50 100 nm, ∼1 μ m 的一条外部直径,并且长度在十测微计上面去的墙厚度。立方的阶段 Y 2 O 3 微试管在 Y 的热处理以后被获得(哦)3 在为 4 h 的 700 ° C 的微试管。Eu 3+-doped Y 2 有在 610 nm 的强壮的红排放的微试管也是的 O 3 准备了,他们的光致发光(PL ) 性质被学习。为微试管的形成的可能的机制简短被讨论。 | WANG Shijin ZHONG Shengliang WEN Zubiao WANG Yuling WANG Shangping CHEN Jianjun XU Rong LUO Longfei | 2009 | Rare Metals2009，28，5： | 5 |
| 18 | U-Pb dating of zircon grains from the ore-bearing plagioclase amphibolite in the Dashuigou Te deposit显示文摘The Dashuigou Te deposit is a unique independent one found in the world, and hosted in the plagioclase amphibolite. The upper intercept age of single zircon from the amphibolite can be considered to be the crystallization age of the source-rock of the amphibolite (tholeiitic basalt), while the lower intercept is nearly consistent with the time of the tectono-thermal event. | Shijin Xu Weizhou Shen Rucheng Wang Jianjun Lu Xiaoming Chen Yuping Lin | 1998 | Chinese Science Bulletin1998，43，17： | 5 |
| 19 | Two-dimensional self-organization of 1-nonanethiol-capped gold nanoparticles显示文摘A two-dimensional (2D) ordered hexagonal close-packed structure, formed by 1-nonanethiol-capped gold nanoparticles, is reported. The structure was constructed only by dipping the gold nanoparticle colloidal solution on flat substrate. The gold nanoparticles were synthesized as follows: First, AuCl4-1 was transferred from aqueous solution to toluene by the phase-transfer reagent of tetraoc-tylanunonium bromide. Then it was reduced with aqueous sodium borohydride in the presence of a given amount of 1-nonanethiol molecules which was used to control the nu-cleation and growth of the gold nanoparticles for the desired size. The experimental techniques, such as UV-Vis, FT-IR, and X-ray photoelectron spectroscopy (XPS), were employed to characterize the obtained product. Transmission electron microscopy (TEM) measurement demonstrated the size of the gold nanoparticle and the formation of two-dimensional ordered hexagonal close-packed gold nanoparticle structure. | JIANG Peng XIE Sishen YAO Jiannian HE Shengtai ZHANG Haoxu SHI Dongxia PANG Shijin GAO Hongjun | 2001 | Chinese Science Bulletin2001，46，12： | 5 |
| 20 | Sm-Nd dating and Nd-Sr isotopic characteristics of the Shimian ophiolite suiten,Sichuan Province显示文摘By mcasuring the Sm-Nd and Rb-Sr isotopiccompositions of harzburgite and gabbro from Shimianophiolite suite, we got the whole rock Sm-Nd isochron age of(938 ± 30) Ma (2σ), and the e Nd of 7.6 ± 0.8 (2σ), which showsthat the ophiolite was formed at the Early Neoproterozoic.The obvious change (0.70209-0.70708) of Isr values of theophiolite is caused by the meteoric hydrothermal alteration.The high εNd values indicate that the primitive magma wasderived from the intense depleted mantle rescrvoir. It is sug-gested that this area was in a back-arc basin environmentduring the Early Neoproterozic. | SHEN Weizhou XU Shijin GAO Jianfeng YANG Zhusheng YANG Qiwen | 2002 | Chinese Science Bulletin2002，47，22： | 4 |
您所在的机构暂未开通此部分的功能，请联系管理员