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| 1 | Insight-HXMT observations of the first binary neutron star merger GW170817显示文摘Finding the electromagnetic(EM) counterpart of binary compact star merger, especially the binary neutron star(BNS) merger,is critically important for gravitational wave(GW) astronomy, cosmology and fundamental physics. On Aug. 17, 2017,Advanced LIGO and Fermi/GBM independently triggered the first BNS merger, GW170817, and its high energy EM counterpart,GRB 170817 A, respectively, resulting in a global observation campaign covering gamma-ray, X-ray, UV, optical, IR, radio as well as neutrinos. The High Energy X-ray telescope(HE) onboard Insight-HXMT(Hard X-ray Modulation Telescope) is the unique high-energy gamma-ray telescope that monitored the entire GW localization area and especially the optical counterpart(SSS17 a/AT2017 gfo) with very large collection area(~1000 cm^2) and microsecond time resolution in 0.2-5 MeV. In addition,Insight-HXMT quickly implemented a Target of Opportunity(ToO) observation to scan the GW localization area for potential X-ray emission from the GW source. Although Insight-HXMT did not detect any significant high energy(0.2-5 MeV) radiation from GW170817, its observation helped to confirm the unexpected weak and soft nature of GRB 170817 A. Meanwhile,Insight-HXMT/HE provides one of the most stringent constraints(~10^(-7) to 10^(-6) erg/cm^2/s) for both GRB170817 A and any other possible precursor or extended emissions in 0.2-5 MeV, which help us to better understand the properties of EM radiation from this BNS merger. Therefore the observation of Insight-HXMT constitutes an important chapter in the full context of multi-wavelength and multi-messenger observation of this historical GW event. | TiPei Li ShaoLin Xiong ShuangNan Zhang FangJun Lu LiMing Song XueLei Cao Zhi Chang Gang Chen Li Chen TianXiang Chen Yong Chen YiBao Chen YuPeng Chen Wei Cui WeiWei Cui JingKang Deng YongWei Dong YuanYuan Du MinXue Fu GuanHua Gao He Gao Min Gao MingYu Ge YuDong Gu Ju Guan ChengCheng Guo DaWei Han Wei Hu Yue Huang Jia Huo ShuMei Jia LuHua Jiang WeiChun Jiang Jing Jin YongJie Jin Bing Li ChengKui Li Gang Li MaoShun Li Wei Li Xian Li XiaoBo Li XuFang Li YanGuo Li ZiJian Li ZhengWei Li XiaoHua Liang JinYuan Liao CongZhan Liu GuoQing Liu HongWei Liu ShaoZhen Liu XiaoJing Liu Yuan Liu YiNong Liu Bo Lu XueFeng Lu Tao Luo Xiang Ma Bin Meng Yi Nang JianYin Nie Ge OU JinLu Qu Na Sai Liang Sun Yin Tan Lian Tao WenHui Tao YouLi Tuo GuoFeng Wang HuanYu Wang Juan Wang WenShuai Wang YuSa Wang XiangYang Wen BoBing WU Mei Wu GuangCheng Xiao He Xu YuPeng Xu LinLi Yan JiaWei Yang Sheng Yang YanJi Yang AiMei Zhang ChunLei Zhang ChengMo Zhang Fan Zhang HongMei Zhang Juan Zhang Qiang Zhang Shu Zhang Tong Zhang Wei Zhang WanChang Zhang WenZhao Zhang Yi Zhang Yue Zhang YiFei Zhang YongJie Zhang Zhao Zhang ZiLiang Zhang HaiSheng Zhao JianLing Zhao XiaoFan Zhao ShiJie Zheng Yue Zhu YuXuan Zhu ChangLin Zou | 2018 | Science China(Physics,Mechanics & Astronomy)2018，61，3： | 12 |
| 2 | The High Energy X-ray telescope (HE) onboard the Insight-HXMT astronomy satellite显示文摘The Insight-Hard X-ray Modulation Telescope(Insight-HXMT) is a broadband X-ray and γ-ray(1-3000 ke V) astronomy satellite. One of its three main telescopes is the High Energy X-ray telescope(HE). The main detector plane of HE comprises 18 Na I(Tl)/Cs I(Na) phoswich detectors, where Na I(Tl) is used as the primary detector to measure ~ 20-250 ke V photons incident from the field of view(FOV) defined by collimators, and Cs I(Na) is used as the active shielding detector to Na I(Tl) by pulse shape discrimination. Additionally, Cs I(Na) is used as an omnidirectional γ-ray monitor. The HE collimators have a diverse FOV,i.e. 1.1°×5.7°(15 units), 5.7°×5.7°(2 units), and blocked(1 unit). Therefore, the combined FOV of HE is approximately5.7°×5.7°. Each HE detector has a diameter of 190 mm resulting in a total geometrical area of approximately 5100 cm2, and the energy resolution is ~15% at 60 ke V. For each recorded X-ray event by HE, the timing accuracy is less than 10 μs and the deadtime is less than 10 μs. HE is used for observing spectra and temporal variability of X-ray sources in the 20-250 ke V band either by pointing observations for known sources or scanning observations to unveil new sources. Additionally, HE is used for monitoring the γ-ray burst in 0.2-3 Me V band. This paper not only presents the design and performance of HE instruments but also reports results of the on-ground calibration experiments. | CongZhan Liu YiFei Zhang XuFang Li XueFeng Lu Zhi Chang ZhengWei Li AiMei Zhang YongJie Jin HuiMing Yu Zhao Zhang MinXue Fu YiBao Chen JianFeng Ji YuPeng Xu JingKang Deng RenCheng Shang GuoQing Liu FangJun Lu ShuangNan Zhang YongWei Dong TiPei Li Mei Wu YanGuo Li HuanYu Wang BoBing Wu YongJie Zhang Zhi Zhang ShaoLin Xiong Yuan Liu Shu Zhang HongWei Liu YiJung Yang Fan Zhang | 2020 | Science China(Physics,Mechanics & Astronomy)2020，63，4： | 9 |
| 3 | Microstructural evolution and corrosion behavior of directionally solidified FeCoNiCrAl high entropy alloy显示文摘The FeCoNiCrAl alloys have many potential applications in the fields of structural materials, but few attempts were made to characterize the directional solidification of high entropy alloys. In the present research, the microstructure and corrosion behavior of FeCoNiCrAl high entropy alloy have been investigated under directional solidification. The results show that with increasing solidification rate, the interface morphology of the alloy evolves from planar to cellular and dendritic. The electrochemical experiment results demonstrate that the corrosion products of both non-directionally and directionally solidified FeCoNiCrAl alloys appear as rectangular blocks in phases which Cr and Fe are enriched, while Al and Ni are depleted, suggesting that Al and Ni are dissolved into the NaCl solution. Comparison of the potentiodynamic polarization behaviors between the two differently solidified FeCoNiCrAl high entropy alloys in a 3.5%NaCl solution shows that the corrosion resistance of directionally solidified FeCoNiCrAl alloy is superior to that of the non-directionally solidified FeCoNiCrAl alloy. | Cui Hongbao Wang Ying Wang Jinyong Guo Xuefeng Fu Hengzhi | 2011 | China Foundry2011，8，3： | 7 |
| 4 | Sulfur deposition in sour gas reservoirs:laboratory and simulation study显示文摘Sulfur deposition in the formation,induced by a reduction in the solubility of the sulfur in the gas phase,may significantly reduce the in flow performance of sour gas wells and some wells in sour gas reservoirs have even become completely plugged with deposited sulfur within several months.Accurate prediction and effective management of sulfur deposition are crucial to the economic viability of sour gas reservoirs.In this paper,a dynamic flow experiment was carried out to investigate formation damage resulting from sulfur deposition using an improved experimental method.The core sample was extracted from the producing interval of the LG2 well,LG gas field in the Sichuan Basin.The experimental temperature was 26 oC and the initial pressure was 19 MPa.The displacement pressure continuously decreased from 19 to 10 MPa,and the depletion process lasted 15 days.Then the core was removed and dried.The core mass and core permeability were measured before and after experiments.Experimental results indicated that the core mass increased from 48.372 g before experiment to 48.386 g afterwards,while the core permeability reduced from 0.726 to 0.608 md during the experiment.Then the core was analyzed with a scanning electron microscope(SEM) and energy-dispersive X-ray mapping.The deposition pattern and micro-distribution of elemental sulfur was observed and the deposited elemental sulfur distributed as a film around the pore surface.In addition,a preliminary three-dimensional,multi-component model was developed to evaluate the effect of sulfur deposition on production performance,and the effect of production rate on sulfur deposition was also investigated.Simulation results indicated that the stable production time would be shortened and the gas production rate would be decreased once sulfur deposited in the formation.The increase in deposited sulfur at high flow rates may be attributed to a bigger pressure drop than that at low gas flow rates.Gas production rate has a severe effect on sulfur saturation in the grid of producing well located in sour gas reservoir.The work suggests sulfur deposition should be considered to correctly predict production performance and gas production rate should be optimized in order to control or retard sulfur deposition during the development of sour gas reservoir. | Xiao Guo Zhimin Du Xuefeng Yang Yong Zhang Dekui Fu | 2009 | Petroleum Science2009，6，4： | 4 |
| 5 | Two-Year Observation of Fossil Fuel Carbon Dioxide Spatial Distribution in Xi’an City显示文摘The need for atmospheric carbon dioxide(CO2)reduction in the context of global warming is widely acknowledged by the global scientific community.Fossil fuel CO2(CO2ff)emissions occur mainly in cities,and can be monitored directly with radiocarbon(14 C).In this research,annual plants[Setaria viridis(L.)Beauv.]were collected from 26 sites in 2013 and2014 in the central urban district of Xi’an City.The△14C content of the samples were analyzed using a 3 MV Accelerator Mass Spectrometer,and CO2ff concentrations were calculated based on mass balance equations.The results showed that the CO2ff mixing ratio ranged from 15.9 to 25.0 ppm(part per million,equivalent toμmol mol-1),with an average of 20.5 ppm in 2013.The range of measured values became larger in 2014,from 13.9 ppm to 33.1 ppm,with an average of 23.5 ppm.The differences among the average CO2ff concentrations between the central area and outer urban areas were not statistically significant.Although the year-to-year variation of the CO2ff concentration was significant(P<0.01),there was a distinctly low CO2 ff value observed in the northeast corner of the city.CO2 ff emiissions from vehicle exhaust and residential sources appeared to be more significant than two thermal power plants,according to our observed CO2 ff spatial distribution.The variation of pollution source transport recorded in our observations was likely controlled by southwesterly winds.These results could assist in the optimal placement of regional CO2 monitoring stations,and benefit the local government in the implementation of efficient carbon emission reduction measures. | Xiaohu XIONG Weijian ZHOU Shugang WU Peng CHENG Hua DU Yaoyao HOU Zhenchuan NIU Peng WANG Xuefeng LU Yunchong FU | 2020 | Advances in Atmospheric Sciences2020，37，6： | 2 |
| 6 | Overview to the Hard X-ray Modulation Telescope (Insight-HXMT) Satellite显示文摘As China’s first X-ray astronomical satellite, the Hard X-ray Modulation Telescope (HXMT), which was dubbed as Insight-HXMT after the launch on June 15, 2017, is a wide-band(1-250 ke V) slat-collimator-based X-ray astronomy satellite with the capability of all-sky monitoring in 0.2-3 Me V. It was designed to perform pointing, scanning and gamma-ray burst(GRB)observations and, based on the Direct Demodulation Method (DDM), the image of the scanned sky region can be reconstructed.Here we give an overview of the mission and its progresses, including payload, core sciences, ground calibration/facility, ground segment, data archive, software, in-orbit performance, calibration, background model, observations and some preliminary results. | Shuang-Nan Zhang TiPei Li FangJun Lu LiMing Song YuPeng X u CongZhan Liu Yong Chen XueLei Cao QingCui Bu Zhi Chang Gang Chen Li Chen TianXiang Chen YiBao Chen YuPeng Chen Wei Cui WeiWei Cui JingKang Deng YongWei Dong Yuan Yuan Du MinXue Fu GuanHua Gao He Gao Min Gao MingYu Ge YuDong Gu Ju Guan Can Gungor ChengCheng Guo DaWei Han Wei Hu Yue Huang Jia Huo ShuMei Jia LuHua Jiang WeiChun Jiang Jing Jin YongJie Jin Bing Li ChengKui Li Gang Li MaoShun Li Wei Li Xian Li XiaoBo Li XuFang Li YanGuo Li ZiJian Li ZhengWei Li XiaoHua Liang JinYuan Liao GuoQing Liu HongWei Liu ShaoZhen Liu XiaoJing Liu Yuan Liu YiNong Liu Bo Lu XueFeng Lu Tao Luo Xiang Ma Bin Meng Yi Nang JianYin Nie Ge Ou JinLu Qu Na Sai RenCheng Shang GuoHong Shen Liang Sun Ying Tan Lian Tao YouLi Tuo Chen Wang ChunQin Wang GuoFeng Wang HuanYu Wang Juan Wang WenShuai Wang YuSa Wang XiangYang Wen BaiYang Wu BoBing Wu Mei Wu GuangCheng Xiao ShaoLin Xiong LinLi Yan JiaWei Yang Sheng Yang YanJi Yang QiBin Yi Bin Yuan AiMei Zhang ChunLei Zhang ChengMo Zhang Fan Zhang HongMei Zhang Juan Zhang Qiang Zhang ShenYi Zhangs Shu Zhang Tong Zhang WanChang Zhang Wei Zhang WenZhao Zhang Yi Zhang YiFei Zhang YongJie Zhang Yue Zhang Zhao Zhang Zhi Zhang ZiLiang Zhang HaiSheng Zhao XiaoFan Zhao ShiJie Zheng JianFeng Zhou YuXuan Zhu Yue Zhu RenLin Zhuang | 2020 | Science China(Physics,Mechanics & Astronomy)2020，63，4： | 2 |
| 7 | Improvement of short-term forecasting in the northwest Pacific through assimilating Argo data into initial fields显示文摘在温度和咸度的短期的预报精确性上吸收南船座数据进起始的域的影响是使用西方的诺思太平洋的一个预报系统估计的份量上,在有一个概括坐标系统(POMgcs ) 的普林斯顿海洋模型的库上。这个系统使用顺序的 multigrid 三维变化(3DVAR ) 吸收观察数据的分析计划。二个数字实验在吸收数据进起始的域的进程除常规温度和海表面温度(SST ) 以外有或没有南船座温度和咸度侧面数据被进行。预报错误被在预报时期期间使用独立温度和咸度侧面估计,包括水平地平均的根均方差( H-RMSEs )的垂直分布和垂直地平均的吝啬的错误( MEs )和空间地平均的根均方差( S-RMSEs )的时间的变化的水平分布。在二个实验之间的比较证明南船座数据的吸收显著地改进预报精确性,与为温度,和咸度最大的 H-RMSE 的 24% 减小预报更显然被改进,平均深入地比 300 m 浅的为 H-RMSEs 50% 落下。如此的改进被温度和咸度的相对一致的采样在时空从南船座流浪者引起。 | FU Hongli CHU Peter C HAN Guijun HE Zhongjie LI Wei ZHANG Xuefeng | 2013 | Acta Oceanologica Sinica2013，32，7： | 2 |
| 8 | Enhancing the power conversion efficiency of PCDTBT:PC_(71)BM polymer solar cells using a mixture of solvents显示文摘Organic polymer solar materials are shown to exhibit better solubility in mixed solvents than in pure ones,which affects the performance of their solar cells.In this article,poly[N-9-hepta-decanyl-2,7-carbazole-alt-5,5-(4.7-di-2-thienyI-2,l,3-benzothiadiazole)(PCDTBT0)and[6,6]-phenyl-C71-butyric acid methyl ester(PC_(71)BM)are used as active layer materials in solar cells.To optimize the performance of these active materials,the ratio of chloroform(CF)to chlorobenzene used as solvents to dissolve PCDTBT,and PC_(71)BM is varied,which is shown to affect power conversion efficiency(PCE).The solar cell that shows the best performance with a PCE as high as 6.82%is produced using a volume ratio of CF to chlorobenzene of1:1. | Shaopeng Yang Ye Zhang Tao Jiang Xuefeng Sun Chaoqun Lu Guang Li Xiaowei Li Guangsheng Fu | 2014 | Chinese Science Bulletin2014，59，3： | 2 |
| 9 | An ensemble estimation of impact times and strength of Fukushima nuclear pollution to the east coast of China and the west coast of America显示文摘Based on the statistics of all surface drifting buoys of 1978-2011 and Lagrangian tracers simulated from high quality ocean reanalysis currents,the impact times and strength of Fukushima nuclear pollution to the east coast of China and the west coast of America have been estimated.Under the circumstances of the radioactive pollutants drifting in the ocean surface,preliminary research results show that while the tracers took about 4 years to reach the west coast of USA,there are two types of tracers to carry out Fukushima nuclear pollutants to reach the east coast of China,corresponding to 1.5-year recirculation gyre transport and 3.5-year subtropical circulation transport.The distributions of the impact strength at these time scales are given according to the variation of relative number concentration with time combined with the decaying rate of radioactive matter.For example,starting from 1% at 1.5-year,of the initial level at the originating area of Fukushima nuclear pollution,the impact strength of Cesium-137 in the South China Sea continuously increases up to 3% by 4 years,while the impact strength of Cesium-137 in the west coast of America is as high as 4% due to the role of strong Kuroshio-extension currents as a major transport mechanism of nuclear pollutants for that area. | HAN GuiJun LI Wei FU HongLi ZHANG XueFeng WANG XiDong WU XinRong ZHANG LianXin | 2013 | Science China Earth Sciences2013，56，8： | 2 |
| 10 | A variational successive corrections approach for the sea ice concentration analysis显示文摘The sea ice concentration observation from satellite remote sensing includes the spatial multi-scale information.However,traditional data assimilation methods cannot better extract the valuable information due to the complicated variability of the sea ice concentration in the marginal ice zone.A successive corrections analysis using variational optimization method,called spatial multi-scale recursive filter(SMRF),has been designed in this paper to extract multi-scale information resolved by sea ice observations.It is a combination of successive correction methods(SCM)and minimization algorithms,in which various observational scales,from longer to shorter wavelengths,can be extracted successively.As a variational objective analysis scheme,it gains the advantage over the conventional approaches that analyze all scales resolved by observations at one time,and also,the specification of parameters is more convenient.Results of single-observation experiment demonstrate that the SMRF scheme possesses a good ability in propagating observational signals.Further,it shows a superior performance in extracting multi-scale information in a two-dimensional sea ice concentration(SIC)experiment with the real observations from Special Sensor Microwave/Imager SIC(SSMI). | Xuefeng Zhang Lu Yang Hongli Fu Dong Li Zheqi Shen Lianxin Zhang Xuhui Hu | 2020 | Acta Oceanologica Sinica2020，39，9： | 1 |
| 11 | Pyrolysates distribution and kinetics of Shenmu long flame coal显示文摘 | Yuankui Lin Qingsong Li Xuefeng Li Kang Ji Haipeng Zhang Yingmin Yu Yuhe Song Yu Fu Lanyi Sun | 2014 | Energy Conversion and Management2014，，： | 1 |
| 12 | Concentrations and health risks of lead, cadmium, arsenic, and mercury in rice and edible mushrooms in China显示文摘 | Yong Fang Xinyang Sun Wenjian Yang Ning Ma Zhihong Xin Jin Fu Xiaochang Liu Meng Liu Alfred Mugambi Mariga Xuefeng Zhu Qiuhui Hu | 2014 | Food Chemistry2014，，： | 1 |
| 13 | Synthesis and optical properties of ZnS:Cu(II) nanoparticles 显示文摘 | Wang Mingwen Sun Lingdong Fu Xuefeng | 2000 | Solid State Communications2000，115，： | 1 |
| 14 | Tensile deformation behavior of spray-deposited FVS0812 heat-resistant aluminum alloy sheet at elevated temperatures 显示文摘 | Yan Qiqi Fu Dingfa Deng Xuefeng | 2007 | Mater Character2007，58，6： | 1 |
| 15 | Lentivirus‐Mediated bcl‐2 Gene Therapy Improves Function and Structure of Chemotherapy‐Damaged Ovaries in Wistar Rats显示文摘 | Xuefeng Wang Yuanli He Mubiao Liu Xiafei Fu | 2013 | Am J Reprod Immunol2013，，5： | 1 |
| 16 | Crystal structure of human Gadd45 reveals an active dimer显示文摘The human Gadd45 protein family plays critical roles in DNA repair,negative growth control,genomic stability,cell cycle checkpoints and apoptosis.Here we report the crystal structure of human Gadd45,revealing a unique dimer formed via a bundle of four parallel helices,involving the most conserved residues among the Gadd45 isoforms.Mutational analysis of human Gadd45 identified a conserved,highly acidic patch in the central region of the dimer for interaction with the proliferating cell nuclear antigen(PCNA),p21 and cdc2,suggesting that the parallel dimer is the active form for the interaction.Cellular assays indicate that:(1)dimerization of Gadd45 is necessary for apoptosis as well as growth inhibition,and that cell growth inhibition is caused by both cell cycle arrest and apoptosis;(2)a conserved and highly acidic patch on the dimer surface,including the important residues Glu87 and Asp89,is a putative interface for binding proteins related to the cell cycle,DNA repair and apoptosis.These results reveal the mechanism of self-association by Gadd45 proteins and the importance of this self-association for their biological function. | Wenzheng Zhang Sheng Fu Xuefeng Liu Xuelian Zhao Wenchi Zhang Wei Peng Congying Wu Yuanyuan Li Xuemei Li Mark Bartlam Zong-Hao Zeng Qimin Zhan Zihe Rao | 2011 | Protein & Cell2011，2，10： | 1 |
| 17 | Synthesis and optical properties of ZnS:Cu(II) nanoparticles显示文摘 | Wang Mingwen Sun Lingdong Fu Xuefeng | 2000 | Solid State Communications2000，115，9： | 1 |
| 18 | Graph-based ap- proaches to debugging and revision of terminologies in DL- Lite 显示文摘 | Fu Xuefeng Qi Guilin Zhang Yong | 2016 | Knowledge Based Systems2016，100，5： | 1 |
| 19 | Equine Viperin Restricts Equine Infectious Anemia Virus Replication by Inhibiting the Production and/or Release of Viral Gag,Env,and Receptor via Distortion of the Endoplasmic Reticulum显示文摘 | Yandong Tang Lei Na Chunhui Zhu Nan Shen Fei Yang Xianqiu Fu Yuhong Wang Lihua Fu Jiayi Wang Yuezhi Lin Xuefeng Wang Xiaojun Wang Jianhua Zhou Chengyao Li | 2014 | J Virol2014，88，12： | 1 |
| 20 | A multi-scale high-order recursive filter approach for the sea ice concentration analysis显示文摘With the development and deployment of observation systems in the ocean,more precise passive and active microwave data are becoming available for the weather forecasting and the climate monitoring.Due to the complicated variability of the sea ice concentration(SIC)in the marginal ice zone and the scarcity of high-precision sea ice data,how to use less data to accurately reconstruct the sea ice field has become an urgent problem to be solved.A reconstruction method for gridding observations using the variational optimization technique,called the multi-scale high-order recursive filter(MHRF),which is a combination of Van Vliet fourth-order recursive filter and the three-dimensional variational(3D-VAR)analysis,has been designed in this study to reproduce the refined structure of sea ice field.Compared with the existing spatial multi-scale first-order recursive filter(SMRF)in which left and right filter iterative processes are executed many times,the MHRF scheme only executes the same filter process once to reduce the analysis errors caused by multiple filters and improve the filter precision.Furthermore,the series connected transfer function in the high-order recursive filter is equivalently replaced by the paralleled one,which can carry out the independent filter process in every direction in order to improve the filter efficiency.Experimental results demonstrate that this method possesses a good potential in extracting the observation information to successfully reconstruct the SIC field in computational efficiency. | Lu Yang Dong Li Xuefeng Zhang Hongli Fu Kexiu Liu | 2022 | Acta Oceanologica Sinica2022，41，2： | 1 |
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