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| 1 | GPS-constrained inversion of present-day slip rates along major faults of the Sichuan-Yunnan region, China显示文摘A linked-fault-element model is employed to invert for contemporary slip rates along major active faults in the Sichuan-Yunnan region (96°-108°E, 21°-35°N) using the least squares method. The model is based on known fault geometry, and constrained by a GPS-derived horizontal velocity field. Our results support a model attributing the eastward extrusion of the Tibetan Plateau driven mainly by the north-northeastward indentation of the Indian plate into Tibet and the gravitational collapse of the plateau. Resisted by a relatively stable south China block, materials of the Sichuan-Yunnan region rotate clockwise around the eastern Himalayan tectonic syntaxis. During the process the Garzê-Yushu, Xianshuihe, Anninghe, Zemuhe, Daliangshan, and Xiaojiang faults, the southwest extension of the Xiaojiang fault, and the Daluo-Jinghong and Mae Chan faults constitute the northeast and east boundaries of the eastward extrusion, with their left slip rates being 0.3-14.7, 8.9-17.1, 5.1 ± 2.5, 2.8 ± 2.3, 7.1 ± 2.1, 9.4 ± 1.2, 10.1 ± 2.0, 7.3 ± 2.6, and 4.9 ± 3.0 mm/a respectively. The southwestern boundary consists of a widely distributed dextral transpressional zone other than a single fault. Right slip rates of 4.2 ± 1.3, 4.3 ± 1.1, and 8.5 ± 1.7 mm/a are detected across the Nanhua-Chuxiong-Jianshui, Wuliangshan, and Longling-Lancang faults. Crustal deformation across the Longmenshan fault is weak, with short-ening rates of 1.4 ± 1.0 and 1.6 ± 1.3 mm/a across the Baoxing-Beichuan and Beichuan-Qingchuan segments. Northwest of the Longmenshan fault lies an active deformation zone (the Longriba fault) with 5.1±1.2 mm/a right slip across. Relatively large slip rates are detected across a few faults within the Sichuan-Yunnan block: 4.4±1.3 mm/a left slip and 2.7±1.1 mm/a shortening across the Litang fault, and 2.7±2.3 mm/a right-lateral shearing and 6.7±2.3 mm/a shortening across the Yunongxi fault and its surrounding regions. In conclusion, we find that the Sichuan-Yunnan region is divided into more than a dozen active micro-blocks by a large number of faults with relatively slow slip rates. The eastward extrusion of the Tibetan Plateau is absorbed and adjusted in the region mainly by these faults, other than a small number of large strike-slip faults with fast slip rates. | WANG YanZhao WANG EnNing SHEN ZhengKang WANG Min GAN WeiJun QIAO XueJun MENG GuoJie LI TieMing TAO Wei YANG YongLin CHENG Jia LI Peng | 2008 | Science China Earth Sciences2008，51，9： | 65 |
| 2 | Research on heart sound identification technology显示文摘In this article,both the basic principles and the experimental methods of identity recognition technology based on heart sounds are addressed.First,the characteristics of heart sounds and the feasibility of heart sounds as a biometric were analyzed.A synthetic model of heart sounds was then developed based on a family of wavelets;Finally,the characteristic parameters of heart sounds were extracted by using the heart sounds linear band frequency cepstra(HS-LBFC)with a specified configuration,and the similarity distance was adopted for heart sound identification.To highlight the difference in two heart sound signals between the time and frequency domains,a construction method of the heart sound wavelet,a calculation method of the parameters of a synthetic model,selection of the characteristic parameters of heart sounds and the corresponding data processing technology were examined.The experimental results showed that the proposed method exhibited excellent performance and practicability. | CHENG XieFeng MA Yong LIU Chen ZHANG XueJun GUO YuFeng | 2012 | Science China(Information Sciences)2012，55，2： | 20 |
| 3 | m^6A Regulates Neurogenesis and Neuronal Development by Modulating Histone Methyltransferase Ezh2显示文摘N6-methyladenosine (m6A),catalyzed by the methyltransferase complex consisting of Mettl3 and Mettl14,is the most abundant RNA modification in mRNAs and participates in diverse biological processes. However,the roles and precise mechanisms of m6A modification in regulating neuronal development and adult neurogenesis remain unclear. Here,we examined the function of Mettl3,the key component of the complex,in neuronal development and adult neurogenesis of mice. We found that the depletion of Mettl3 significantly reduced m6A levels in adult neural stem cells (aNSCs) and inhibited the proliferation of aNSCs. Mettl3 depletion not only inhibited neu-ronal development and skewed the differentiation of aNSCs more toward glial lineage,but also affected the morphological maturation of newborn neurons in the adult brain. m6A immunoprecip-itation combined with deep sequencing (MeRIP-seq) revealed that m6A was predominantly enriched in transcripts related to neurogenesis and neuronal development. Mechanistically,m6A was present on the transcripts of histone methyltransferase Ezh2,and its reduction upon Mettl3 knockdown decreased both Ezh2 protein expression and consequent H3K27me3 levels. The defects of neurogenesis and neuronal development induced by Mettl3 depletion could be rescued by Ezh2 overexpression. Collectively,our results uncover a crosstalk between RNA and histone modifica-tions and indicate that Mettl3-mediated m6A modification plays an important role in regulating neurogenesis and neuronal development through modulating Ezh2. | Junchen Chen Yi-Chang Zhang Chunmin Huang Hui Shen Baofa Sun Xuejun Cheng Yu-Jie Zhang Yun-Gui Yang Qiang Shu Ying Yang Xuekun Li | 2019 | Genomics, Proteomics & Bioinformatics2019，17，2： | 12 |
| 4 | First light of the 1.8-m solar telescope–CLST显示文摘Large-aperture solar telescopes play an important role in solar observations and research,and require high temporal and spatial resolution[1].To solve some fundamental problems such as the solar dynamo,coronal heating,and the triggering of major solar eruptions,the spatial resolution for solar-atmosphere observation should reach at least 0.1 arcsec[2]. | ChangHui Rao NaiTing Gu XueJun Rao Cheng Li LanQiang Zhang JinLong Huang Lin Kong Ming Zhang YunTao Cheng Yi Pu Hua Bao YouMing Guo YangYi Liu JinSheng Yang LiBo Zhong ChangJun Wang Kai Fang XiaoJun Zhang DongHong Chen Cheng Wang XinLong Fan ZhiWu Yan KeLe Chen XiYa Wei Lei Zhu Hong Liu YongJian Wan Hao Xian WenLi Ma | 2020 | Science China(Physics,Mechanics & Astronomy)2020，63，10： | 6 |
| 5 | Electrochemical oxidation of recalcitrant organic compounds in biologically treated municipal solid waste leachate in a flow reactor显示文摘Biologically-treated municipal solid waste(MSW) leachate still contains many kinds of bio-recalcitrant organic matter. A new plate and frame electrochemical reactor was designed to treat these materials under flow conditions. In the electrochemical oxidation process, NH3and color could be easily removed by means of electro-generated chlorine/hypochlorite within 20 min. The efects of major process parameters on the removal of organic pollutants were investigated systematically. Under experimental conditions, the optimum operation parameters were current density of 65 mA/cm2, flow velocity of 2.6 cm/sec in electrode gap, and initial chloride ion concentration of 5000 mg/L. The COD in the leachate could be reduced below 100 mg/L after 1 hr of treatment. The kinetics and mechanism of COD removal were investigated by simultaneously monitoring the COD change and chlorine/hypochlorite production.The kinetics of COD removal exhibited a two-stage kinetic model, and the decrease of electro-generated chlorine/hypochlorite production was the major mechanism for the slowing down of the COD removal rate in the second stage. The narrowing of the electrode gap is beneficial for COD removal and energy consumption. | Xuejun Quan Zhiliang Cheng Bo Chen Xincai Zhu | 2013 | Journal of Environmental Sciences2013，25，10： | 6 |
| 6 | Discovery and implications of catenary-bead subaqueous dunes显示文摘Measurements of topography at the segment of bifurcation between the South Channel and North Channel in the Yangtze Estuary were conducted, and a new type of subaqueous dune was discovered. This structure, newly defined as a catenary-bead dune, consists of a catenary dune and its associated elliptical pit bedform. Based on this finding, the nomenclature of 'morphology of dune associated with accompanying bedform' is first proposed. The measured data indicate a mean height and wavelength of 1.29 m and 31.89 m, respectively; wavelength/height ratio(L/H) of 14 to 56; and elliptical pits of mean and maximum depth 0.98 m and 1.98 m, respectively. Flow information was obtained using an Acoustic Doppler Current Profile(ADCP), and the bed material components were gathered with a bottom sampler. The results show mean flood and ebb velocities of 0.27 and 0.78 m s?1, respectively, with shorter duration of flood tide than ebb tide. The silt, very fine sand, and fine sand fractions were within the ranges 21.6–23.4%, 28.2–32.2%, and 39.7–41.6%, respectively, revealing complex bed material composition. Water depth at the study site varies from 13 to 17 m. This finding will enrich the study of dunes and provide important data for geomorphological research. Moreover, the results are significant for engineering applications to estuaries. | ZHENG Shu Wei CHENG He Qin WU Shuai Hu LIU Gao Wei LU XueJun XU WenXiao | 2016 | Science China Earth Sciences2016，59，3： | 5 |
| 7 | Photocatalytic degradation of bisphenol A using an integrated system of a new gas-liquid-solid circulating fluidized bed reactor and micrometer Gd-doped TiO_2 particles显示文摘A new gas-liquid-solid circulating fluidized bed photocatalytic reactor (GLSCFBPR) with internally placed multi-layered UV lamps was developed. Micrometer Gd-TiO2 particles and commercial nanometer P25-TiO2 were chosen as the photocatalysts, and the hazardous substance bisphenol A (BPA) was chosen as the model pollutant to investigate the performance of this new photocatalytic system. The results showed that the photocatalytic degradation efficiency of the micrometer Gd-TiO2 particles was similar to that of the nanometer P-25 particles at their respective optimum dosage but the former could be easily separated out by gravity. After investigating the effects of process parameters on the photocatalytic BPA degradation, the response surface method (RSM) was further used for process optimization. The interactions among process parameters, i.e., TiO2 concentration, superficial gas velocity and superficial liquid velocity were discovered and a related analysis was carried out to explore the underlying mechanism. A quadratic mathematic model was established and performed satisfactorily when used for prediction. The optimum conditions for this new process were as follows: TiO2 concentration 4.5 g/L, superficial gas velocity 7.83 × 10-3 m/sec and superficial liquid velocity 8.65 × 10-3 m/sec. | Zhiliang Cheng Xuejun Quan Jinxin Xiang Yuming Huang Yunlan Xu | 2012 | Journal of Environmental Sciences2012，24，7： | 5 |
| 8 | Brain Network Analysis of Schizophrenia Based on the Functional Connectivity显示文摘Network analysis based on graph theory has greatly promoted the cognition of the human brain network. A detailed brain network function connection analysis was carried out for the brain of normal human brain and mental illness patients. We studied the Magnetoencephalography(MEG) of 9 normal subjects and9 schizophrenics in left hemisphere temporal lobe and frontal lobe regions. And obtained the dynamic function connectivity matrix by calculating Pearson correlation coefficients that based on sliding time window and shorttime Fourier transform, and constructed weight and binary network by graph theory. Analyzed the small world properties of normal human brain networks, and compared the differences of network between normal subjects and patients with schizophrenia. | ZHANG Xuejun WANG Longqiang DING Yuhan HUANG Liya CHENG Xiefeng | 2019 | Chinese Journal of Electronics2019，28，3： | 3 |
| 9 | Challenges and strategies in high-accuracy manufacturing of the world’s largest SiC aspheric mirror显示文摘In the process of manufacturing the world’s largest silicon carbide(SiC)aspheric mirror,the primary difficulties are mirror blank preparation,asphere fabrication,and testing,as well as cladding and coating.Specifically,the challenges include the homogeneity of the complicated structure casting,accuracy and efficiency of the fabrication process,print-through effect,fidelity and precision of test procedure,stress and denseness of cladding process,the dynamic range of interferometric measurement,and air turbulence error due to the long optical path.To break through such a barrier of difficulties,we proposed the water-soluble room temperature vanishing mold and gel casting technology,homogeneous microstructure reaction-formed joint technology,nano-accuracy efficient compound fabrication,gravity unloading technology,high-denseness low-defect physical vapor deposition(PVD)Si-cladding technology,test data fusion method,and time-domain averaging method,etc.Based on the proposed technologies and methods,we have accomplished the world’s largest SiC aspheric mirror with a size of φ4.03 m.The impressive performance of the SiC aspheric mirror is validated by the characteristics of the fabricated SiC aspheric mirror.The aerial density of the SiC blank is less than 120 kg/m^(2),surface shape test accuracy is better than 6 nm RMS,thickness inhomogeneity of the cladding layer is less than 5%,and the final surface figure error and roughness are 15.2 nm RMS and 0.8 nm RMS,respectively. | Xuejun Zhang Haixiang Hu Xiaokun Wang Xiao Luo Ge Zhang Wenxing Zhao Xiaoyi Wang Zhenyu Liu Ling Xiong Erhui Qi Congcong Cui Yanchao Wang Yingjie Li Xu Wang Longxiang Li Yang Bai Qiang Cheng Zhiyu Zhang Ruigang Li Wa Tang Xuefeng Zeng Weijie Deng Feng Zhang | 2022 | Light(Science & Applications)2022，11，12： | 3 |
| 10 | An adaptive data-driven method for accurate prediction of remaining useful life of rolling bearings显示文摘 | Yanfeng PENG Junsheng CHENG Yanfei LIU Xuejun LI Zhihua PENG | 2018 | Frontiers of Mechanical Engineering2018，13，2： | 3 |
| 11 | EAST-Educational Adaptive-optics Solar Telescope显示文摘For the public having a better understanding of solar activities,the Educational Adaptive-optics Solar Telescope(EAST)was built in July 2021 and is located at the Shanghai Astronomy Museum.The EAST consists of a 65 cm aperture solar telescope with a 177-element adaptive optics system and two-channel high resolution imaging system at the Hαand TiO bands,in addition to three full disk solar telescopes at CaK,Hαand TiO bands equipped on the tube of the main telescope.In this paper,the configuration of the EAST is described.Its performance and on-sky observational results are presented.The EAST,to our knowledge,is the most advanced solar telescope for the popularization of science in the world.Due to its excellent performance,the data acquired by the EAST can also be used for research on solar physics and space weather prediction. | Changhui Rao Xuejun Rao Zhimao Du Hua Bao Cheng Li Jinlong Huang Youming Guo Libo Zhong Qing Lin Xin Ge Jinsheng Yang Xinlong Fan Yangyi Liu Dan Jia Xin Li Mei Li Ming Zhang Yuntao Cheng Jiahui Zhou Jiawen Yao Lanqiang Zhang Naiting Gu | 2022 | Research in Astronomy and Astrophysics2022，22，6： | 3 |
| 12 | A comparison of lightwand and laryngoscopic intubation techniques in patients undergoing laparoscopic cholecystectomy显示文摘Objective:To assess the effects of lightwand and laryngoscopic intubation techniques in patients undergoing laparoscopic cholecystectomy (LC). Methods:300 ASA physical status I and II patients,undergoing LC,were randomly assigned to two groups,with 150 cases in each group. Patients in the LS group underwent endotracheal intubation using a standard direct-suspension laryngoscopic technique. Patients in the LW group were intubated by using transillumination with a lightwand. Mean arterial pressure and heart rate were recorded before induction,and at 1,3 and 5 min after intubation. The incidence and of sore throat,hoarseness,and dysphagia was assessed twenty-four hours after surgery. Results:This study demonstrated no clinically significant difference in cardiovascular variables between the two techniques. Patients had a significantly lower incidence of sore throat,hoarseness,and dysphagia when the lightwand was used for intubation. Conclusion:This study suggests that lightwand intubation may decrease the incidence of postoperative sore throat,hoarseness,and dysphagia,thereby potentially increasing satisfaction in surgical patients. Therefore,more frequent use of the lightwand is recom-mended for endotracheal intubation. | Chenglan Xie Congjin Ju Jiawen Cheng Xuejun Yan Dengquan Guo | 2009 | Journal of Nanjing Medical University2009，23，3： | 2 |
| 13 | Sulforaphane protects brains against hypoxic–ischemic injury through induction of Nrf2-dependent phase 2 enzyme显示文摘 | Zhang Ping Wenwu Liu Zhimin Kang Jianmei Cai Qiusha Wang Ni Cheng Sujian Wang Shizhong Wang John H. Zhang Xuejun Sun | 2010 | Brain Research2010，，： | 1 |
| 14 | Mechanism of Surface Vertical Deformation in Parts of the Underground Gas Storage Reservoir of Hutubi, Xinjiang, China显示文摘The Underground Gas Storage( UGS) in Hutubi( HTB),Xinjiang is the largest gas storage reservoir in China and it has significance for coordinating the gas supply and demand relationship,peak-load regulation,implementation of strategic reserves,national security, and social economic sustainable development. Therefore, the deformation monitoring and simulation analysis of UGS operation has important technical support and reference value for the stability and safe operation of the underground gas storage. In this paper,we use the elevation data obtained from 7 periods of second-order leveling surveys in the Hutubi underground gas storage area in 2013- 2015 to analyze the influence of gas well pressure on the vertical deformation of the underground gas storage reservoir.Research has shown that the absolute vertical subsidence rate is approximately in the range from 11. 8mm to 16. 1mm and the relative subsidence change is about 4. 3mm,near the surface deformation of Hutubi underground gas storage area except for the annual subsidence rate of- 2. 86 mm by the basic influence of uplift of the Tianshan Mountains.Groundwater over-extraction in the Hutubi area also has an impact on the vertical variation of the surface in this region. The land surface change per unit pressure of gas storage has an impact of about 0. 625mm- 1. 125 mm. 17 scenes Terra SAR-X radar images acquired from August,2013 to August,2014 are exploited by Small Baseline Subset( SBAS) In SAR method to obtain the surface deformation time series during the operation of UGS in Hutubi,meanwhile combined with the pressure data of injection / productionwells,the multi-point source Mogi model is used to simulate the UGS deformation field in Hutubi. The results show that the deformation characteristics of the whole UGS area is a discontinuous distribution with the peak deformation value of 10 mm and- 8mm in the satellite line of sight( LOS) during gas injection and production,respectively and the retrieved deformation sequences correspond very well to the gas injection / production pressure changes. Based on the multi- point source Mogi model, we simulate the deformation process of UGS,HTB,and with the adaptive forward search method,the radius and depth of point source are obtained. The simulated results indicate that when the average injection / production pressure of UGS,HTB is 18 MPa and 15 MPa, LOS deformation is up to 7mm and- 4mm,respectively,and surface deformation is related to the density of gas injection( production) wells. The UGS gas distribution is not uniform,indicating that the structure of underground gas storage is complex. Thus using a more elaborate geomechanical model and other deformation observation data will be helpful for better simulating the UGS internal structure and explaining the mechanism of deformation. | Li Jie Li Rui Wang Xiaoqiang Shi Xinpu Qiao Xuejun Zheng Liming Abudutayier. Yaseng Sun Xiaoxu Chen Shujiang Fang Wei Cheng Ruizhong | 2016 | Earthquake Research in China2016，30，3： | 1 |
| 15 | Synthesis and surface properties of semi-interpenetrating fluorine-containing polyacrylate and epoxy resin networks显示文摘 | Xuejun Cui Yan Gao Shuangling Zhong Zaihang Zheng Yuxia Cheng Hongyan Wang | 2012 | Journal of Polymer Research2012，，3： | 1 |
| 16 | Matrine upregulates the cell cycle protein E2F-1 and triggers apoptosis via the mitochondrial pathway in K562 cells显示文摘 | Hua Jiang ChunHui Hou ShuBing Zhang HengYue Xie WeiYing Zhou QiHuang Jin XiaoDong Cheng RuoLan Qian XueJun Zhang | 2007 | European Journal of Pharmacology2007，，2： | 1 |
| 17 | Ground-layer adaptive optics for the New Vacuum Solar Telescope:Instrument description and first results显示文摘Ground-layer adaptive optics(GLAO)has shown its potential for use in solar observation owing to its wide field-of-view(FOV)correction.A high-order GLAO system that consists of a multiple direction Shack-Hartmann wavefront sensor(WFS),a realtime controller with a multi-CPU processor,and a 151-element deformable mirror was developed for the 1-m New Vacuum Solar Telescope at Yunnan Observatories,Chinese Academy of Sciences.A hexagonal microlens with 9×8 subapertures is employed in the WFS.The detection FOV is 42′′×37′′,in which 9(3×3)guide regions are extracted for multiple direction wavefront sensing with a frame rate of up to 2200 Hz.To our knowledge,this is the first professional solar GLAO system used as a regularly operating instrument for scientific observations.Its installation and adjustment were performed in the summer of 2021.In this article,a detailed account of the GLAO system and its first light results and a comprehensive analysis of the performance of the GLAO system are provided.The results show that this system can effectively improve the imaging quality after compensating for the wavefront aberration due to ground-layer turbulence. | Lanqiang Zhang Hua Bao Xuejun Rao Youming Guo Libo Zhong Xian Ran Nanfei Yan Jinsheng Yang Cheng Wang Jiahui Zhou Ying Yang Yunyao Long Xinlong Fan Zhongyi Feng Donghong Chen Changhui Rao | 2023 | Science China(Physics,Mechanics & Astronomy)2023，66，6： | 1 |
| 18 | Treatment of the wastewater containing low-level 241 Am using flocculation-microfiltration process显示文摘 | Gao Yong Zhao Jun Zhang Guanghui Zhang Dong Cheng Weiwen Yuan Guoqi Liu Xuejun Ma Bangzhong Zeng Junhui Gu Ping | 2004 | Separation and Purification Technology2004，，2： | 1 |
| 19 | Vision-based adaptive variable rate spraying approach for unmanned aerial vehicles显示文摘The rapid developments of unmanned aerial vehicles(UAV)and vision sensor are contributing a great reformation in precision agriculture.Farmers can fly their UAV spraying pesticides around their crop fields while staying at their remote control room or any place that is separated from their farm land.However,there is a common phenomenon in rice planting management stage that some empty areas are randomly located in farmland.Therefore,a critical problem is that the waste of pesticides that occurs when spraying pesticides over rice fields with empty areas by using the common UAV,because it is difficult to control the flow accuracy based on the empty areas changing.To tackle this problem,a novel vision-based spraying system was proposed that can identify empty areas automatically while spraying a precise amount of pesticides on the target regions.By this approach,the image was preprocessed with the Lucy-Richardson algorithm,then the target area was split from the background with k-means and the feature parameters were extracted,finally the feature parameters were filtered out with a positive contribution which would serve as the input parameters of the support vector machine(SVM)to identify the target area.Also a fuzzy control model was analyzed and exerted to compensate the nonlinearity and hysteresis of the variable rate spraying system.Experimental results proved that the approach was applicable to reducing the amount of pesticides during UAV spraying,which can provide a reference for precision agriculture aviation in the future. | Linhui Wang Yubin Lan Xuejun Yue Kangjie Ling Zhenzhao Cen Ziyao Cheng Yongxin Liu Jian Wang | 2019 | International Journal of Agricultural and Biological Engineering2019，12，3： | 1 |
| 20 | Modified characteristics of mesophase pitch prepared from coal tar pitch by adding waste polystyrene显示文摘 | Xianglin Cheng Qingfang Zha Xuejun Li Xiaojun Yang | 2008 | Fuel Processing Technology2008，，12： | 1 |
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