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| 1 | Biostratigraphy and geography of the Ordovician-Silurian Lungmachi black shales in South China显示文摘Based on the new material of seven Ordovician-Silurian boundary sections investigated recently, together with previously published data, we analyze the temporal and spatial distributions of the Lungmachi black shales, a key petroleum source bed widely distributed in South China. The Lungmachi black shales range in age from the Normalograptus persculptus Biozone of the uppermost Ordovician to the Spirograptus guerichi Biozone of the lower Telychian, and ten graptolite biozones can be recognized within this unit. The basal and upper contacts of the Lungmachi black shales are diachronous. The basal contact ranges from the N. persculptus to the C. cyphus biozones, a span of five graptolite biozones over two stages. The upper contact ranges from the D. pectinatus-M. argenteus Biozone to the Spirograptus guerichi Biozone, which spans four graptolite biozones over two stages. The Yichang Uplift resulted in the formation of the Hunan-Hubei Submarine High in the border area of Hubei, Hunan, and Chongqing. This is supported by a break in sedimentation in this area spanning all or part of the Hirnantian, and in many areas extending into the underlying Katian and overlying Rhuddanian. Comparison of the distribution of the Katian to Rhuddanian strata in this area indicates a growth and subsequent reduction in area of the Hunan-Hubei Submarine High particularly in the Hirnantian to early Rhuddanian. This may partly represent the influence of the process of formation and melting of ice sheet in Ordovician South Pole and consequent sea level change. | FAN JunXuan Michael J MELCHIN CHEN Xu WANG Yi ZHANG YuanDong CHEN Qing CHI ZhaoLi CHEN Feng | 2011 | Science China Earth Sciences2011，54，12： | 24 |
| 2 | Synthesis of novel nanomaterials and their application in efficient removal of radionuclides显示文摘With the development of nuclear energy, large amounts of radionuclides are inevitably released into the natural environment. It is necessary to eliminate radionuclides from wastewater for the protection of environment. Nanomaterials have been considered as the potential candidates for the effective and selective removal of radionuclides from aqueous solutions under complicated conditions because of their high specific surface area, large amounts of binding sites, abundant functional groups, pore-size controllable and easily surface modification. This review mainly summarized the recent studies for the synthesis, fabrication and surface modification of novel nanomaterials and their applications in the efficient elimination and solidification of radionuclides,and discussed the interaction mechanisms from batch experiments, spectroscopy analysis and theoretical calculations. The sorption capacities with other materials, advantages and disadvantages of different nanomaterials are compared, and at last the perspective of the novel nanomaterials is summarized. | Xiangxue Wang Long Chen Lin Wang Qiaohui Fan Duoqiang Pan Jiaxing Li Fangting Chi Yi Xie Shujun Yu Chengliang Xiao Feng Luo Jun Wang Xiaolin Wang Changlun Chen Wangsuo Wu Weiqun Shi Shuao Wang Xiangke Wang | 2019 | Science China Chemistry2019，62，8： | 20 |
| 3 | Tissue clearing of both hard and soft tissue organs with the PEGASOS method显示文摘织物空地技术由转织物在 3 尺寸(3-D ) 启用不透明的机关和纸巾的可视化透明。当前的组织空地方法被能与每个单个协议被清除的纸巾的有限类型限制,它不可避免地导致了存在在整个身体或身体部分成像以内盲点。包括骨头和牙齿的难纸巾仍然是要清除的最困难的机关。另外,内长的荧光的损失为基于溶剂的空地方法仍然是一颗主要担心。这里,我们发展了聚乙烯乙二醇(木钉) 联系了溶剂系统(PEGASOS ) ,它将近显示了纸巾的所有类型透明、保存的内长的荧光。骨头和牙齿能被转在变清以后将近不可见。PEGASOS 方法转了透明的整个成年老鼠身体,我们对一个成年老鼠头骨头,牙齿,大脑,肌肉,和其它填写了的图象有能力没有盲目区域的纸巾。难织物透明性使我们能重建在 3-D 的未经触动的上颚,牙齿,腿节,或膝关节。另外,我们在长距离上在亚 cellular 分辨率并且到踪迹个人神经原和轴突管理了未经触动的鼠标大脑到图象。我们也通过 vertebrae 直接设想了背面的根中心。最后,我们在长骨头的髓空间以内在 3-D 揭示了神经网络的分发模式。这些结果建议 PEGASOS 方法是为一般生物医学的研究的一个有用工具。 | Dian Jing Shiwen Zhang Wenjing Luo Xiaofei Gao Yi Men Chi Ma Xiaohua Liu Yating Yi Abhijit Bugde Bo O. Zhou Zhihe Zhao Quan Yuan Jian Q. Feng Liang Gao Woo-Ping Ge Hu Zhao | 2018 | Cell Research2018，28，8： | 18 |
| 4 | Over-expression of NYGGF4 inhibits glucose transport in 3T3-L1 adipocytes via attenuated phosphorylation of IRS-1 and Akt显示文摘 | Chun-mei ZHANG Xiao-hui CHEN Bin WANG Feng LIU Xia CHI Mei-ling TONG Yu-hui NI Rong-hua CHEN Xi-rong GUO | 2009 | Acta Pharmacologica Sinica2009，30，1： | 17 |
| 5 | Advanced Space-based Solar Observatory(ASO-S):an overview显示文摘The Advanced Space-based Solar Observatory(ASO-S)is a mission proposed for the 25 th solar maximum by the Chinese solar community.The scientific objectives are to study the relationships between the solar magnetic field,solar flares and coronal mass ejections(CMEs).Three payloads are deployed:the Full-disk vector Magneto Graph(FMG),the Lyman-αSolar Telescope(LST)and the Hard X-ray Imager(HXI).ASO-S will perform the first simultaneous observations of the photospheric vector magnetic field,non-thermal imaging of solar flares,and the initiation and early propagation of CMEs on a single platform.ASO-S is scheduled to be launched into a 720 km Sun-synchronous orbit in 2022.This paper presents an overview of the mission till the end of Phase-B and the beginning of Phase-C. | Wei-Qun Gan Cheng Zhu Yuan-Yong Deng Hui Li Yang Su Hai-Ying Zhang Bo Chen Zhe Zhang Jian Wu Lei Deng Yu Huang Jian-Feng Yang Ji-Jun Cui Jin Chang Chi Wang Ji Wu Zeng-Shan Yin Wen Chen Cheng Fang Yi-Hua Yan Jun Lin Wei-Ming Xiong Bin Chen Hai-Chao Bao Cai-Xia Cao Yan-Ping Bai Tao Wang Bing-Long Chen Xin-Yu Li Ye Zhang Li Feng Jiang-Tao Su Ying Li Wei Chen You-Ping Li Ying-Na Su Hai-Yan Wu Mei Gu Lei Huang Xue-Jun Tang | 2019 | Research in Astronomy and Astrophysics2019，19，11： | 17 |
| 6 | Delay-dependent stability and added damping of SDOF real-time dynamic hybrid testing显示文摘It is well-recognized that a transfer system response delay that reduces the test stability inevitably exists in real-time dynamic hybrid testing (RTDHT).This paper focuses on the delay-dependent stability and added damping of SDOF systems in RTDHT.The exponential delay term is transferred into a rational fraction by the Padé approximation, and the delay-dependent stability conditions and instability mechanism of SDOF RTDHT systems are investigated by the root locus technique.First, the stability conditions are discussed separately for the cases of stiffness, mass, and damping experimental substructure.The use of root locus plots shows that the added damping effect and instability mechanism for mass are different from those for stiffness.For the stiffness experimental substructure case, the instability results from the inherent mode because of an obvious negative damping effect of the delay.For the mass case, the delay introduces an equivalent positive damping into the inherent mode, and instability occurs at an added high frequency mode.Then, the compound stability condition is investigated for a general case and the results show that the mass ratio may have both upper and lower limits to remain stable.Finally, a high-emulational virtual shaking table model is built to validate the stability conclusions. | Chi Fudong Wang Jinting Jin Feng | 2010 | Earthquake Engineering and Engineering Vibration2010，9，3： | 13 |
| 7 | The effect of hematoma puncture drainage before decompressive craniectomy on the prognosis of hypertensive intracerebral hemorrhage with cerebral hernia at a high altitude显示文摘Purpose:Rapid decompressive craniectomy(DC)was the most effective method for the treatment of hypertensive intracerebral hemorrhage(HICH)with cerebral hernia,but the mortality and disability rate is still high.We suspected that hematoma puncture drainage(PD)+DC may improve the therapeutic effect and thus compared the combined surgery with DC alone.Methods:From December 2013 to July 2019,patients with HICH from Linzhi,Tibet and Honghe,Yunnan Province were retrospectively analyzed.The selection criteria were as follows:(1)altitude≥1500 m;(2)HICH patients with cerebral hernia;(3)Glascow coma scale score of 4-8 and time from onset to admission≤3 h;(4)good liver and kidney function;and(5)complete case data.The included patients were divided into DC group and PD+DC group.The patients were followed up for 6 months.The outcome was assessed by Glasgow outcome scale(GOS)score,Kaplan-Meier survival curve and correlation between time from admission to operation and prognosis.A good outcome was defined as independent(GOS score,4-5)and poor outcome defined as dependent(GOS score,3-1).All data analyses were performed using SPSS 19,and comparison between two groups was conducted using separatet-tests or Chi-square tests.Results:A total of 65 patients was included.The age ranged 34-90 years(mean,63.00±14.04 years).Among them,31 patients had the operation of PD+DC,whereas 34 patients underwent DC.The two groups had no significant difference in the basic characteristics.After 6 months of follow-up,in the PD+DC group there were 8 death,4 vegetative state,4 severe disability(GOS score 1-3,poor outcome 51.6%);8 moderate disability,and 7 good recovery(GOS score 4-5,good outcome 48.4%);while in the DC group the result was 15 death,6 vegetative state,5 severe disability(poor outcome 76.5%),4 moderate disability and 4 good recovery(good outcome 23.5%).The GOS score and good outcome were significantly less in DC group than in PD+DC group(Z=-1.993,p=0.046;χ2=4.38,p=0.043).However,there was no significant difference regarding the survival curve between PD+DC group and DC group.The correlation between the time from admission to operation and GOS at 6 months(r=-0.41,R2=0.002,p=0.829)was not significant in the PD+DC group,but significant in the DC group(r=-0.357,R2=0.128,p=0.038).Conclusion:PD+DC treatment can improve the good outcomes better than DC treatment for HICH with cerebral hernia at a high altitude. | Lin-Jie Wei Chi Lin Xing-Sen Xue Guo-Dong Dun Jian-Bo Zhang Yan-Xiang Tong Jia-Xiong Wang Shi-Ji Yang Ling Wang Zhi Chen Hua Feng Gang Zhu | 2021 | Chinese Journal of Traumatology2021，24，6： | 11 |
| 8 | Clinicopathological Characteristics and Prognosis of Colorectal Cancer in Chinese Adolescent Patients显示文摘 | Feng Du Su-Sheng Shi Yong-Kun Sun Jin-Wan Wang Yihebali Chi | 2015 | Chinese Medical Journal2015，，23： | 10 |
| 9 | Chinese Herbal Medicine Combined with Entecavir for HBeAg Positive Chronic Hepatitis B:Study Protocol for a Multi-Center,Double-Blind Randomized-Controlled Trial显示文摘Background: The domestic prevalence of chronic hepatitis B(CHB) in China is 7.18% in 2006, imposing great societal healthcare burdens. Nucleot(s)ide analogues(NUCs) anti-hepatitis B virus(HBV) therapies are widely applied despite the relatively low rate of seroconversion and high risk of drug-resistant mutation. More effective treatments for CHB deserve further explorations. Combined therapy of NUCs plus Chinese herbal medicine(CHM) is widely accepted in China, which is recognized as a prospective alternative approach. The study was primarily designed to confirm the hypothesis that Tiaogan-Yipi Granule(调肝益脾颗粒, TGYP) or Tiaogan-Jianpi-Jiedu Granule(调肝健脾解毒颗粒, TGJPJD) plus entecavir tablet(ETV) was superior over ETV monotherapy in enhancing HBeA g loss rate. Methods: The study was a nationwide, large-scale, multi-center, double-blind, randomized, placebo-control ed trial with a designed duration of 108 weeks. A total of 16 hospitals and 596 eligible Chinese HBeA g positive CHB patients were enrolled from November 2012 to September 2013 and randomly allocated into 2 groups in 1:1 ratio via central randomization system: experimental group(EG) and control group(CG). Subjects in EG received CM formulae(TGYP or TGJPJD, 50 g per dose, twice daily) plus ETV tablet(or ETV placebo) 0.5 mg per day in the first 24 weeks(stage 1), and CHM granule plus ETV tablet(0.5 mg per day) from week 25 to 108(stage 2). Subjects in CG received CHM Granule placebo plus ETV tablet(0.5 mg per day) for 108 weeks throughout the trial. The assessments of primary outcomes(HBV serum markers and HBV-DNA) were conducted by a third-party College of American Pathologists(CAP) qualified laboratory. Adverse effects were observed in the hospitals of recruitment. Discussion: The study was designed to compare the curative effect of CM plus ETV and ETV monotherapy in respect of HBe Ag loss, which is recognized by the European Association for the Study of the Liver as 'a valuable endpoint'. We believe this trial could provide a reliable status for patients' 'journey' towards durable responses after treatment discontinuation. The trial was registered before recruitment on Chinese Clinical trial registry(No. ChiC TR-TRC-12002784, Version 1.0, 2015/12/23). | YE Yong-an LI Xiao-ke ZHOU Da-qiao CHI Xiao-ling LI Qin WANG Li LU Bing-jiu MAO De-wen WU Qi-kai WANG Xian-bo ZHANG Ming-xiang XUE Jing-dong LI Yong LU Wei GUO Jian-chun JIANG Feng ZHANG Xin-wei DU Hong-bo YANG Xian-zhao GUO Hui GAN Da-nan LI Zhi-guo | 2018 | Chinese Journal of Integrative Medicine2018，24，9： | 10 |
| 10 | ATF3 contributes to brucine-triggered glioma cell ferroptosis via promotion of hydrogen peroxide and iron显示文摘Ferroptotic cell death is characterized by iron-dependent lipid peroxidation that is initiated by ferrous iron and H_(2)O_(2) via Fenton reaction,in which the role of activating transcription factor 3(ATF3)remains elusive.Brucine is a weak alkaline indole alkaloid extracted from the seeds of Strychnos nux-vomica,which has shown potent antitumor activity against various tumors,including glioma.In this study,we showed that brucine inhibited glioma cell growth in vitro and in vivo,which was paralleled by nuclear translocation of ATF3,lipid peroxidation,and increases of iron and H_(2)O_(2).Furthermore,brucine-induced lipid peroxidation was inhibited or exacerbated when intracellular iron was chelated by deferoxamine(500μM)or improved by ferric ammonium citrate(500μM).Suppression of lipid peroxidation with lipophilic antioxidants ferrostatin-1(50μM)or liproxstatin-1(30μM)rescued brucine-induced glioma cell death.Moreover,knockdown of ATF3 prevented brucine-induced accumulation of iron and H_(2)O_(2) and glioma cell death.We revealed that brucine induced ATF3 upregulation and translocation into nuclei via activation of ER stress.ATF3 promoted brucine-induced H_(2)O_(2) accumulation via upregulating NOX4 and SOD1 to generate H_(2)O_(2) on one hand,and downregulating catalase and xCT to prevent H_(2)O_(2) degradation on the other hand.H_(2)O_(2) then contributed to brucine-triggered iron increase and transferrin receptor upregulation,as well as lipid peroxidation.This was further verified by treating glioma cells with exogenous H_(2)O_(2) alone.Moreover,H_(2)O_(2) reversely exacerbated brucine-induced ER stress.Taken together,ATF3 contributes to brucine-induced glioma cell ferroptosis via increasing H_(2)O_(2) and iron. | Shan Lu Xuan-zhong Wang Chuan He Lei Wang Shi-peng Liang Chong-cheng Wang Chen Li Tian-fei Luo Chun-sheng Feng Zhen-chuan Wang Guang-fan Chi Peng-fei Ge | 2021 | Acta Pharmacologica Sinica2021，42，10： | 10 |
| 11 | KIF2C:a novel link between Wnt/β-catenin and mTORCI signaling in the pathogenesis of hepatocellular carcinoma显示文摘Hepatocellular carcinoma(HCC)is the most common primary liver malignancy and is the fourth-leading cause of cancer-related deaths worldwide.HCC is refractory to many standard cancer treatments and the prognosis is often poor,highlighting a pressing need to identify biomarkers of aggressiveness and potential targets for future treatments.Kinesin family member 2C(KIF2C)is reported to be highly expressed in several human tumors.Nevertheless,the molecular mechanisms underlying the role of KIF2C in tumor development and progression have not been investigated.In this study,we found that KIF2C expression was significantly upregulated in HCC,and that KIF2C up-regulation was associated with a poor prognosis.Utilizing both gain and loss of function assays,we showed that KIF2C promoted HCC cell proliferation,migration,invasion,and metastasis both in vitro and in vivo.Mechanistically,we identified TBC1D7 as a binding partner of KIF2C,and this interaction disrupts the formation of the TSC complex,resulting in the enhancement of mammalian target of rapamycin complexl(mTORCI)signal transduction.Additionally,we found that KIF2C is a direct target of the Wnt/β-catenin pathway,and acts as a key factor in mediating the crosstalk between Wnt/β-catenin and mTORCI signaling.Thus,the results of our study establish a link between Wnt/β-catenin and mTORCI signaling,which highlights the potential of KIF2C as a therapeutic target for the treatment of HCC. | Shi Wei Miaomiao Dai Chi Zhang Kai Teng Fengwei Wang Hongbo Li Weipeng Sun Zihao Feng Tiebang Kang Xinyuan Guan Ruihua Xu Muyan Cai Dan Xie | 2021 | Protein & Cell2021，12，10： | 8 |
| 12 | KNaY-zeolite catalyzed dehydration of methyl lactate显示文摘A promising catalyst,KNaY was prepared by an ion exchange method with aqueous potassium chloride solution.Comparedwith NaY,KNaY was an effective catalyst for the dehydration of methyl lactate to methyl acrylate.Under the optimized conditions,an improved yield of 37.9 mol%was achieved. | Hai Feng Shi Yao Chi Hu Yang Wang He Huang | 2007 | Chinese Chemical Letters2007，18，4： | 8 |
| 13 | SARS-CoV-2 envelope protein causes acute respiratory distress syndrome (ARDS)-like pathological damages and constitutes an antiviral target显示文摘Cytokine storm and multi-organ failure are the main causes of SARS-CoV-2-related death.However,the origin of excessive damages caused by SARS-CoV-2 remains largely unknown.Here we show that the SARS-CoV-2 envelope(2-E)protein alone is able to cause acute respiratory distress syndrome(ARDS)-like damages in vitro and in vivo. | Bingqing Xia Xurui Shen Yang He Xiaoyan Pan Feng-Liang Liu Yi Wang Feipu Yang Sui Fang Yan Wu Zilei Duan Xiaoli Zuo Zhuqing Xie Xiangrui Jiang Ling Xu Hao Chi Shuangqu Li Qian Meng Hu Zhou Yubo Zhou Xi Cheng Xiaoming Xin Lin Jin Hai-Lin Zhang Dan-Dan Yu Ming-Hua Li Xiao-Li Feng Jiekai Chen Hualiang Jiang Gengfu Xiao Yong-Tang Zheng Lei-Ke Zhang Jingshan Shen Jia Li Zhaobing Gao | 2021 | Cell Research2021，31，8： | 7 |
| 14 | Ultrathin Co(Ni)-doped MoS2 nanosheets as catalytic promoters enabling efficient solar hydrogen production显示文摘收获太阳能经由水减小驾驶氢进化反应的有效人工的光合的系统的设计从两个是很重要的理论、实际的观点。与吸收材料的大光集成适当合作催化剂倡导者代表理想的策略在氢生产提高太阳能的变换效率。此处,第一次,我们报导由 ultrathin 公司(Ni ) 组成的唯一的混合结构的一个班的合成做了瞬间 2 nanosheets (合作催化剂倡导者) 在半导体 CdS nanorods (轻吸收器) 上亲密地成年。同样综合的一个维的 CdS@doped 瞬间 2 heterostructures 展出了很高的 photocatalytic 活动(与 17.3% 的量收益) 并且向从水的光致还原的 H 2 进化的稳定性。理论计算表明做的 Ni 能在瞬间 2 nanosheets 的边地点增加不协调的原子的数字越过 CdS/MoS 2 接口以及氢减小支持电子转移,导致有效 H 2 进化反应。 | Xiaoyan Ma Jinquan Li Changhua An Juan Feng Yuhua Chi Junxue Liu Jun Zhang Yugang Sun | 2016 | Nano Research2016，9，8： | 7 |
| 15 | 5-Ethynyl-2′-deoxyuridine as a molecular probe of cell proliferation for high-content siRNA screening assay by “click” chemistry显示文摘Labelling and identification of proliferating cells is important for the study of physiological or pathological processes in high-content screening (HCS) assays. Here we describe ethynyl deoxyuridine (EdU) as a biomarker for the assessment of cell proliferation and clearly demonstrate the feasibility of the EdU-labelling method for use in HCS assays. EdU detection is highly robust, reproducible, technically simple, and well suited for automated segmentation, which provides an excellent al- ternative for setting up multiplexed HCS assays of siRNA, miRNA and small-molecule libraries. | CHEN MiaoJuan QU DeZhong CHI WeiLin WANG Wei REN XiaoShuai CONG ShuJie LIANG PeiZhou FENG ShiPeng ZHANG BiLiang | 2011 | Science China Chemistry2011，54，11： | 6 |
| 16 | Roles of microRNAs in immunopathogenesis of non-alcoholic fatty liver disease revealed by integrated analysis of microRNA and mRNA expression profiles显示文摘BACKGROUND: The integrative analysis of microRNA and mRNA expression profiles can elucidate microRNA-targeted gene function. We used this technique to elucidate insights into the immunological pathology of non-alcoholic fatty liver disease(NAFLD).METHODS: We analyzed differentially expressed microRNA and mRNA expression profiles of CD4^+ T lymphocytes from the liver and mesenteric lymph nodes(MLNs) of mice with NAFLD using microarrays and RNA sequencing. Normal mice were used as controls. The target genes of microRNAs were predicted by Target Scan. Integrative analysis showed that the mRNAs were overlapped with microRNAs. Furthermore, the Gene Ontology(GO) and Kyoto Encyclopedia of Genes and Genomes(KEGG) analyses were performed to predict the key genes and pathways. Then, 16 microRNAs and 10 mRNAs were validated by q RT-PCR.RESULTS: Microarray analysis suggested that 170 microRNAs were significantly de-regulated in CD4^+ T lymphocytes from the liver between the two groups. Eighty mR NAs corresponded with microRNA targeted genes. KEGG analysis indicated that the MAPK pathway was consistently augmented in the liver of NAFLD mice. miR-23 b, let-7e, miR-128 and miR-130 b possibly played significant parts in the MAPK pathways. Furthermore,between the two groups, 237 microRNAs were significantly deregulated in CD4^+ T lymphocytes from MLNs. 38 mRNAs coincided with microRNA target genes. The metabolic pathway was consistently enriched in the MLNs of NAFLD mice. miR-206-3p, miR-181a-5p, miR-29c-3p and miR-30d-5p likely play important roles in the regulation of metabolic pathways.CONCLUSION: The results of this study presented a new perspective on the application of integrative analysis to identify complex regulation means involved in the immunological pathogenesis of NAFLD. | Yu-Jun Zhang Ying Hu Jing Li Yu-Jing Chi Wei-Wei Jiang Feng Zhang Yu-Lan Liu | 2017 | Hepatobiliary & Pancreatic Diseases International2017，16，1： | 6 |
| 17 | Bathymetric Prediction from Multi-source Satellite Altimetry Gravity Data显示文摘According to the 'theoretical admittance ' and the 'observation admittance' of the actual data,the theoretical value of effective elastic thickness in the study area was 10 km.Combining the gravity anomalies and vertical gravity gradient anomalies,the admittance function is used to construct the 1′×1′ bathymetry model over the Philippine Sea by using the adaptive weighting technique.It is found that the accuracy of the bathymetry model constructed is the highest when the ratio of inversion result of vertical gravity gradient anomalies and inversion result of gravity anomalies is 2∶3.At the same time,using multi-source gravity data to predict bathymetry could synthesize the superiority of gravity anomalies and vertical gravity gradient anomalies on the different seafloor topography,and the accuracy is better than bathymetry model that only used gravity anomalies or vertical gravity gradient anomalies.Taking the ship test data as the checking condition,the accuracy of predicting model is slightly lower than that of V18.1 model and improved by 27.17% and 39.02% respectively compared with the ETOPO1 model and the DTU10 model.Check points which the absolute value of the relative error of the predicting model is in the range of 5% accounted for 94.25% of the total. | Diao FAN Shanshan LI Shuyu MENG Chi ZHANG Jinkai FENG Yan HUANG Jiawei DU Zhibin XING | 2019 | Journal of Geodesy and Geoinformation Science2019，2，1： | 6 |
| 18 | Experiments and Simulation of Thermal Behaviors of the Dual-drive Servo Feed System显示文摘The machine tool equipped with the dual-drive servo feed system could realize high feed speed as well as sharp precision. Currently, there is no report about the thermal behaviors of the dual-drive machine, and the current research of the thermal characteristics of machines mainly focuses on steady simulation. To explore the influence of thermal characterizations on the precision of a jib boring machine assembled dual-drive feed system, the thermal equilibrium tests and the research on thermal-mechanical transient behaviors are carried out. A laser interferometer, infrared thermography and a temperature-displacement acquisition system are applied to measure the temperature distribution and thermal deformation at different feed speeds. Subsequently, the finite element method(FEM) is used to analyze the transient thermal behaviors of the boring machine. The complex boundary conditions, such as heat sources and convective heat transfer coefficient, are calculated. Finally, transient variances in temperatures and deformations are compared with the measured values, and the errors between the measurement and the simulation of the temperature and the thermal error are 2 ℃ and 2.5 μm, respectively. The researching results demonstrate that the FEM model can predict the thermal error and temperature distribution very well under specified operating condition. Moreover, the uneven temperature gradient is due to the asynchronous dual-drive structure that results in thermal deformation. Additionally, the positioning accuracy decreases as the measured point became further away from the motor, and the thermal error and equilibrium period both increase with feed speeds. The research proposes a systematical method to measure and simulate the boring machine transient thermal behaviors. | YANG Jun MEI Xuesong FENG Bin ZHAO Liang MA Chi SHI Hu | 2015 | Chinese Journal of Mechanical Engineering2015，28，1： | 6 |
| 19 | Highly effective and reproducible surface-enhanced Raman scattering substrates based on Ag pyramidal arrays显示文摘 | Yandong Wang Nan Lu Wentao Wang Lingxiao Liu Lei Feng Zhoufang Zeng Haibo Li Weiqing Xu Zijian Wu Wei Hu Yanqing Lu Lifeng Chi | 2013 | Nano Research2013，6，3： | 6 |
| 20 | Quantum Dialogue Protocol Using a Class of Three-Photon W States显示文摘A theoretical protocol of quantum dialogue is proposed,which uses a class of three-photon W states asquantum channel.After two-step security check,four-bit secret message can be transmitted to each other by transmittingof single photon with the aid of two-bit classical information. | DONG Li XIU Xiao-Ming GAO Ya-Jun CHI Feng | 2009 | Communications in Theoretical Physics2009，52，11： | 5 |
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