|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Discovery of eclogite and its geological significance in Qiangtang area, central Tibet显示文摘Eclogite is first discovered from Qiang- tang area, central Tibet, which occurs as a lens in the high-pressure metamorphic belt comprising glauco- phane-muscovite schist and garnet-muscovite schist, along the south margin of Lungmu Co-Shuanghu Paleo-Tethys suture. A glaucophane 40Ar/39Ar age of 220 Ma and a phengite 40Ar/39Ar age of 221.9 Ma have been obtained from blueschists associated with eclogite. The rock consists of garnet, omphacite, amphibole, phengite, and rutile, etc, and the jadeite content in omphacite ranges from 32.7% to 38.95%. It is estimated that the temperature of the eclogite is <500℃ and pressure varies in the range of 1.56― 2.35 GPa. The discovery of Qiangtang ecologite fur- ther supports that there is a suture zone of Indo- Chinese epoch in central Qiangtang area, and is very important for discssing the evolution of the pa- leo-ocean and paleo-plate tectonics in this area. | LI Cai ZHAI Qingguo DONG Yongsheng HUANG Xiaopeng | 2006 | Chinese Science Bulletin2006,51,9: | 67 |
| 2 | Paleotopographic controls on facies development in various types of braid-delta depositional systems in lacustrine basins in China显示文摘Braid-delta depositional systems are widely developed in most continental basins in China.Research indicates that,for different types of braid delta,the facies sequence and association,which are critical to the prediction of the distribution of reservoirs,differ greatly.This study illustrates the differences in braid-delta depositional systems in terms of sedimentary characteristics,associated systems and reservoir distributions using three typical paleodeltas in western China:the Zhenbei delta of the upper Triassic Yanchang Formation in the Ordos Basin,the Yuanba delta of the upper Triassic Xujiahe Formation in the Sichuan Basin and the Jimsar delta of the upper Permian Wutonggou Formation in the Junggar Basin.A stratigraphic framework was established using seismic data,logs and cores by choosing stable mud sections as regional correlation markers and,topographies of these deltas were reconstructed based on the decompaction and paleobathymetric corrections.Based on both the paleotopography of these deltas and the differences of their sedimentary facies,these braided deltas can be classified into two systems:steep-gradient braid-delta-turbidite system and low-gradient braid-delta-lacustrine system.Moreover,the low-gradient braid-delta-lacustrine system can be further divided into interfingered and sharp contact sub-types according to the contact relation between the delta sands and lacustrine muds.This study shows that the paleotopography of basin margins strongly controls the accommodation as braid deltas prograde into lacustrine basins and,influences the location of the shoreline in response to changes in the lake level.Furthermore,paleotopography plays a significant role in facies and reservoir distribution which is important for petroleum exploration and development. | Dong Feng Hongwen Deng Zhan Zhou Xiaopeng Gao Longtao Cui | 2015 | Geoscience Frontiers2015,6,4: | 7 |
| 3 | Ultrasensitive magnetic field sensor based on an in-fiber Mach–Zehnder interferometer with a magnetic fluid component显示文摘An ultrasensitive magnetic field sensor based on a compact in-fiber Mach–Zehnder interferometer(MZI) created in twin-core fiber(TCF) is proposed, and its performance is experimentally demonstrated. A section of TCF was spliced between two sections of standard single-mode fibers, and then a microchannel was drilled through one core of the TCF by means of femtosecond laser micromachining. The TCF with one microchannel was then immersed in a water-based Fe_3O_4 magnetic fluid(MF), forming a direct component of the light propagation path,and then sealed in a capillary tube, achieving a magnetic sensing element, which merges the advantages of an MZI with an MF. Experiments were conducted to investigate the magnetic response of the proposed sensor. The developed magnetic field sensor exhibits a linear response within a measurement range from 5 to 9.5 m T and an ultrahigh sensitivity of 20.8 nm/m T, which, to our best knowledge, is 2 orders of magnitude greater than other previously reported magnetic sensors. The proposed sensor is expected to offer significant potential for detecting weak magnetic fields. | Zhengyong Li Changrui Liao Jun Song Ying Wang Feng Zhu Yiping Wang Xiaopeng Dong | 2016 | Photonics Research2016,4,5: | 6 |
| 4 | Dark matter direct search sensitivity of the PandaX-4T experiment显示文摘The Panda X-4T experiment, a 4-ton scale dark matter direct detection experiment, is being planned at the China Jinping Underground Laboratory. In this paper we present a simulation study of the expected background in this experiment. In a 2.8-ton fiducial mass and the signal region between 1-10 keV electron equivalent energy, the total electron recoil background is found to be 4.9 × 10^(-5) kg^(-1) d^(-1) keV^(-1). The nuclear recoil background in the same region is 2.8 × 10^(-7) kg^(-1) d^(-1) keV^(-1). With an exposure of 5.6 ton-years, the sensitivity of Panda X-4 T could reach a minimum spin-independent dark matter-nucleon cross section of 6 × 10^(-48) cm^2 at a dark matter mass of 40 Ge V/c^2. | HongGuang Zhang Abdusalam Abdukerim Wei Chen Xun Chen YunHua Chen XiangYi Cui BinBin Dong DeQing Fang ChangBo Fu Karl Giboni Franco Giuliani LinHui Gu XuYuan Guo ZhiFan Guo Ke Han ChangDa He ShengMing He Di Huang XingTao Huang Zhou Huang Peng Ji XiangDong Ji YongLin Ju ShaoLi Li Yao Li Heng Lin HuaXuan Liu JiangLai Liu YuGang Ma YaJun Mao KaiXiang Ni JinHua Ning XiangXiang Ren Fang Shi AnDi Tan AnQing Wang Cheng Wang HongWei Wang Meng Wang QiuHong Wang SiGuang Wang XiuLi Wang XuMing Wang Zhou Wang MengMeng Wu ShiYong Wu JingKai Xia MengJiao Xiao PengWei Xie BinBin Yan JiJun Yang Yong Yang ChunXu Yu JuMin Yuan JianFeng Yue Dan Zhang Tao Zhang Li Zhao QiBin Zheng JiFang Zhou Ning Zhou XiaoPeng Zhou | 2019 | Science China(Physics,Mechanics & Astronomy)2019,62,3: | 6 |
| 5 | Sticker DNA computer model ——PartⅡ: Application显示文摘Sticker model is one of the basic models in the DNA computer models. This model is coded with sin-gle-double stranded DNA molecules. It has the following advantages that the operations require no strands extension and use no enzymes; What抯 more, the materials are reusable. Therefore, it arouses attention and interest of scientists in many fields. In this paper, we extend and improve the sticker model, which will be definitely beneficial to the construction of DNA computer. This paper is the second part of our series paper, which mainly focuses on the application of sticker model. It mainly consists of the following three sections: the matrix representation of sticker model is first presented; then a brief review of the past research on graph and com-binatorial optimization, such as the minimal set covering problem, the vertex covering problem, Hamiltonian path or cycle problem, the maximal clique problem, the maximal independent problem and the Steiner spanning tree problem, is described; Finally a DNA algorithm for the graph iso-morphic problem based on the sticker model is given. | XU Jin LI Sanping DONG Yafei WEI Xiaopeng | 2004 | Chinese Science Bulletin2004,49,9: | 6 |
| 6 | An experimental research on single discharge machining of insulating ceramics efficiently with high energy capacitor显示文摘Insulating ceramics are applied to modern manufacturing industries for their improved material properties.But they are the difficult-to-machine materials because of their high rigidity,high brittleness and non-electrical conductivity.A new method which employs a high energy capacitor for electric discharge machining of insulating ceramics efficiently is presented in this paper,and the single discharge experiments have been carried out.The process uses the high voltage,large capacitor and high discharge energy,it is able to effectively machine insulating ceramics,and the single discharge crater volume of insulating ceramics can reach 17.63 mm3.The effects of polarity,peak voltage,capacitance,current-limiting resistance,tool electrode feed,tool electrode section area and assisting electrode thickness on the process performance such as the single discharge crater volume,the tool wear ratio and the assisting electrode wear ratio have been investigated.The microstructure of the discharge crater is examined with a scanning electron microscope(SEM).The results show that the discharge craters have sputtering appearance,the insulating ceramic materials are mostly removed by spalling,in the center region of the discharge some materials are removed by melting and vaporization,and the material removal is enhanced with the machining parameters increasing. | JI RenJie LIU YongHong ZHANG YanZhen ZHANG HaiFeng LI XiaoPeng DONG Xin | 2011 | Science China(Technological Sciences)2011,54,6: | 4 |
| 7 | Room-temperature production of silver-nanofiber film for large-area, transparent and flexible surface electromagnetic interference shielding显示文摘A kind of pollution known as electromagnetic interference(EMI),which results from ubiquitous usage of various electronic communication and military radar equipment,has been receiving increasing attention recently.However,large-area EMI shielding on transparent and/or curved surfaces,including building windows,curved glass wall,and special requirements spaces(SRSs),remains hard to achieve.In this paper,a silver nanofiber(AgNF)based flexible and transparent EMI shielding film was successfully assembled via a room-temperature roll-to-roll production method.For transparent application scenario,AgNF with 89%transmittance in visible range and 1μm thickness shows~20 dB shielding efficiency(EMI SE).On the other hand,total shielding(>50 dB)is obtained when the thickness of AgNF increases to 10μm,while its transmittance in visible range remains higher than 75%.Considering the facile and scale-free production technology,this material can be readily applied in large-scale,transparent,and/or SRSs EMI shielding. | Sen Lin Haiyang Wang Fan Wu Qingmin Wang Xiaopeng Bai Di Zu Jianan Song Dong Wang Zhenglian Liu Ziwei Li Nian Tao Kai Huang Ming Lei Bo Li Hui Wu | 2019 | npj Flexible Electronics2019,3,1: | 4 |
| 8 | Initiation and Development of the Late Cenozoic Uplift of Daluo Mountains,Northeastern Margin of the Tibetan Plateau显示文摘Daluo Mountains lie at front of the arcuate tectonic belt at the northeastern margin of the Tibetan Plateau,and are the landform boundary zone between the active Tibetan Plateau and the stable North China Craton.Studying of the late Cenozoic uplift evolution of Daluo Mountains is important for understanding the expansion mechanism of the northeastern margin of the Tibetan Plateau and its influence on the western North China Craton.In this study,the late Cenozoic uplift of Daluo Mountains is constructed from the development of the late Cenozoic alluvial fan around Daluo Mountains.The entire sedimentary sequence and framework of the fan was revealed by the newly obtained drilling core data.The cosmogenic nuclide,optically stimulated luminescence,and detrital zircon U-Pb dating results provide new evidences for discussion about the initial timing of the late Cenozoic uplift of Daluo Mountains and the key stages of uplift during the Pleistocene.The late Cenozoic alluvial fan at front of Daluo Mountains overlies a set of fluvial-facies strata;therefore,development of the alluvial-fan marks the start of late Cenozoic uplift of Daluo Mountains.The timing of this event can be constrained to~4.64 Ma.Two extensive gravel layers(dated to ca.0.76–0.6 Ma and~0.05 Ma)developed during the Pleistocene,indicating two episodes of considerable uplift.This study provides a new time scale for the uplift and expansion of the arcuate tectonic belt at the northeastern margin of the Tibetan Plateau. | KOU Linlin DONG Xiaopeng LI Zhenhong CUI Jiawei MA Zhaoying LI Hailong | 2022 | Acta Geologica Sinica(English Edition)2022,96,6: | 2 |
| 9 | Study on high efficient electric discharge milling of silicon carbide ceramic with high resistivity显示文摘A new method which employs a group pulse power supply for electric discharge milling of the silicon carbide ceramic with the resistivity of 500 Ω·cm is presented. Due to the good machining stability and high pulse utilization, the material removal rate (MRR) can reach 72.9 mm3/min. The effects of high-frequency pulse duration, high-frequency pulse interval, peak voltage, peak current, polarity, rotate speed and group frequency on the process performance have been investigated. Also the EDMed surface microstructure is examined with a scanning electron microscope (SEM), an X-ray diffraction (XRD), an energy dispersive spectrometer (EDS) and a micro hardness tester. The results show that the conditions of smaller high-frequency pulse duration and pulse interval, higher peak voltage and peak current, and positive tool polarity are suitable for machining the SiC ceramic. The optimal rotate speed is 1090 r/min and the preferable group frequency is 730 Hz. In addition, there is a small quantity of iron on machined surface when machining with steel electrode. The average grain size of the EDMed surface is smaller than that of the unprocessed, and the micro hardness of machined surface is superior to that of the unprocessed. | JI RenJie LIU YongHong YU LiLi LI XiaoPeng DONG Xin | 2008 | Chinese Science Bulletin2008,53,20: | 2 |
| 10 | Mirror-enhanced scanning light-field microscopy for long-term high-speed 3D imaging with isotropic resolution显示文摘Various biological behaviors can only be observed in 3D at high speed over the long term with low phototoxicity.Light-field microscopy(LFM)provides an elegant compact solution to record 3D information in a tomographic manner simultaneously,which can facilitate high photon efficiency.However,LFM still suffers from the missing-cone problem,leading to degraded axial resolution and ringing effects after deconvolution.Here,we propose a mirrorenhanced scanning LFM(MiSLFM)to achieve long-term high-speed 3D imaging at super-resolved axial resolution with a single objective,by fully exploiting the extended depth of field of LFM with a tilted mirror placed below samples.To establish the unique capabilities of MiSLFM,we performed extensive experiments,we observed various organelle interactions and intercellular interactions in different types of photosensitive cells under extremely low light conditions.Moreover,we demonstrated that superior axial resolution facilitates more robust blood cell tracking in zebrafish larvae at high speed. | Bo Xiong Tianyi Zhu Yuhan Xiang Xiaopeng Li Jinqiang Yu Zheng Jiang Yihan Niu Dong Jiang Xu Zhang Lu Fang Jiamin Wu Qionghai Dai | 2021 | Light(Science & Applications)2021,10,12: | 1 |
| 11 | The Practice of the Public Health Cooperation in the Republic of Sierra Leone:Contributions and Experiences显示文摘Since the outbreak of Ebola virus disease(EVD)in three countries in West Africa,China CDC has conducted two phases of technical cooperation projects based on the Sierra Leone-China Friendship Biological Safety Laboratory(SLE-CHN BSL-3 Lab)in the Republic of Sierra Leone(1-2).Phase Ⅰ was conducted from July 2015 to June 2017,while Phase Ⅱ started in July 2017 and will continue to June 2020.In total,85 Chinese public health specialists have been dispatched to Freetown,the capital city of Sierra Leone,with 80 serving for 6 months and 5 serving for a year.Most Chinese staff came from China CDC and the remaining roughly 15%came from different provincial-level CDCs.This report summarizes major developments to Sierra Leone’s public health field and comments on experiences obtained from the joint effort. | Lili Wang Xiaochun Wang Mingfan Pang Xiuqiong Hu Xiaopeng Qi Xiaoping Dong | 2020 | China CDC weekly2020,2,2: | 1 |
| 12 | Robust pitch estimation using a wavelet ariance analysis model显示文摘 | Xiaopeng Wei Lasheng Zhao Qiang Zhang Jing Dong | 2009 | Signal Processing2009,89,6: | 1 |
| 13 | Measurement and analysis of the birefringence of photonic crystal fiber with wavelength scanning method显示文摘 | Xiaozhen Wang Xiaopeng Dong Zuosheng Xie | 2007 | Opt Quant Electron2007,39,: | 1 |
| 14 | Response to First-Line Chemotherapy in Patients With Non–Small Cell Lung Cancer According to Epidermal Growth Factor Receptor and K-RAS Mutation Status显示文摘 | Xiaopeng Dong Xiaogang Zhao Yingtao Hao Yucheng Wei Qiuwei Yin Jiajun Du | 2013 | Clinical Lung Cancer2013,,: | 1 |
| 15 | Optimized image resizing using seam carving and scaling显示文摘 | Weiming Dong Ning Zhou Jean-Claude Paul Xiaopeng Zhang | 2009 | ACM Transactions on Graphics (TOG)2009,,5: | 1 |
| 16 | The effect of reactants on the benzene thermal synthesis of BN 显示文摘 | Dong Shouyi Hao Xiaopeng Xu Xianggang etc | 2004 | Materials Letters2004,58,: | 1 |
| 17 | Measurement and analysis of the birefringence of photonic crystal fiber with wavelength scanning method 显示文摘 | Wang Xiaozhen Dong Xiaopeng Xie Zuosheng | 2007 | Optical and Quantum Electronics2007,39,1213: | 1 |
| 18 | Measurement and analysis of the hirefringence of photonic crystal fiher with wavelength scanning method 显示文摘 | Xiaozhen Wang Xiaopeng Dong Zuosheng Xie | 2007 | Opt Quant Electron2007,39,1213: | 1 |
| 19 | A survey on monocular 3D human pose estimation显示文摘Recovering human pose from RGB images and videos has drawn increasing attention in recent years owing to minimum sensor requirements and applicability in diverse fields such as human-computer interaction,robotics,video analytics,and augmented reality.Although a large amount of work has been devoted to this field,3D human pose estimation based on monocular images or videos remains a very challenging task due to a variety of difficulties such as depth ambiguities,occlusion,background clutters,and lack of training data.In this survey,we summarize recent advances in monocular 3D human pose estimation.We provide a general taxonomy to cover existing approaches and analyze their capabilities and limitations.We also present a summary of extensively used datasets and metrics,and provide a quantitative comparison of some representative methods.Finally,we conclude with a discussion on realistic challenges and open problems for future research directions. | Xiaopeng JI Qi FANG Junting DONG Qing SHUAI Wen JIANG Xiaowei ZHOU | 2020 | Virtual Reality & Intelligent Hardware2020,2,6: | 1 |
| 20 | Detection and Identification of Vehi- cles Based on Their Unintended Electromag- netic Emissions显示文摘 | DONG Xiaopeng WENG Haixiao BEETNER D G | 2006 | IEEE Transactions on Elec- tromagnetic Compatibility2006,48,4: | 1 |