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Analysis of the joint detection capability of the SMILE satellite and EISCAT-3D radar

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Earth and Planetary Physics 2024年第1期8卷 299-306页

作者： JiaoJiao zhang TianRan Sun XiZheng Yu DaLin Li Hang Li JiaQi Guo ZongHua Ding Tao Chen jian Wu {2. wang state key {2. of space weather National Space Science CenterChinese Academy of SciencesBeijing 100190China key laboratory of Solar Activity and {2. weather National Space Science CenterChinese Academy of SciencesBeijing 100190China University of chinese academy of sciences Beijing 101408China key laboratory of Electronics and Information Technology for {2. Systems Chinese Academy of SciencesBeijing 100190China china research Institute of Radio-wave Propagation Qingdao 266075China

The Solar wind Magnetosphere Ionosphere Link Explorer(SMILE)satellite is a small magnetosphere–ionosphere link explorer developed cooperatively between china and *** pioneers the use of X-ray imaging technology to perform large-scale imaging of the Earth’s magnetosheath and polar cusp *** uses a high-precision ultraviolet imager to image the overall configuration of the aurora and monitor changes in the source of solar wind in real time,using in situ detection instruments to improve human understanding of the relationship between solar activity and changes in the Earth’s magnetic *** SMILE satellite is scheduled to launch in *** European Incoherent Scatter {2. Association(EISCAT)-3D radar is a new generation of European incoherent scatter radar constructed by EISCAT and is the most advanced ground-based ionospheric experimental device in the high-latitude polar *** has multibeam and multidirectional quasi-real-time three-dimensional(3D)imaging capabilities,continuous monitoring and operation capabilities,and multiple-baseline interferometry *** detection by the SMILE satellite and the EISCAT-3D radar is of great significance for revealing the coupling process of the solar wind–magnetosphere–***,we performed an analysis of the joint detection capability of the SMILE satellite and EISCAT-3D,analyzed the period during which the two can perform joint detection,and defined the key scientific problems that can be solved by joint *** addition,we developed Web-based software to search for and visualize the joint detection period of the SMILE satellite and EISCAT-3D radar,which lays the foundation for subsequent joint detection experiments and scientific research.

关键词： Solar wind Magnetosphere Ionosphere Link Explorer(SMILE)satellite European Incoherent Scatter sciences Association(EISCAT)-3D radar joint detection

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三价超铀元素镅冠醚包合物的合成与表征

科学通报 2024年第23期69卷 3404-3411页

作者：李凯王俊人代星程丽葳张海龙林健王亚星王殳凹苏州大学放射医学与辐射防护国家重点实验室苏州215123 西安交通大学核科学与技术学院西安710049

本文报道了95号元素镅(Am)的冠醚包合物[Am(NO_(3))_(2.(18-crown-6)]_(3)·[Am(NO_(3))_(6)](简写为Am-18C6)合成、单晶结构和固体紫外-可见-近红外光谱.X射线单晶衍射表明,Am-18C6晶体属于单斜晶系中的C2.m空间群,非对称单元由[Am(NO_(3))_(6)]^(3-)、[Am(NO_(3))_(2.(18C6)]^(+)和二重无序的[Am(NO_(3))_(2.(18C6)]^(+)孤立离子对组装而成.我们系统比较了Am-O键长与镧系同构晶体中Nd-O键长的差异,并将其与密度泛函理论(density function theory,DFT)计算的理论键长进行了对比.结果表明,Am^(3+)和Nd^(3+)的电子密度变化截然不同,Am^(3+)表现出明显地失去5f电子密度,这意味着Am^(3+)的5f电子在向着O–Am配位键中心延展和极化,而Nd^(3+)并未表现出此特性.本工作对加深三价超铀元素和大环配体之间主客体相互作用理解提供了帮助,为设计新型镧锕分离萃取剂提供了结构模型与理论基础.

关键词：超铀元素镅配合物密度泛函理论

Radiosonde observations of high-latitude planetary waves in the lower atmosphere

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science china Earth {2. 2010年第6期53卷 919-932页

作者： wang Rui1,2.3, zhang ShaoDong1,2.3 & YI Fan1,2.3 1 School of Electronic Information, Wuhan University, Wuhan 430079,{2. 2.key laboratory of Geospace Environment and Geodesy, Ministry of Education, Wuhan 430079,{2. 3 state Observatory for Atmospheric Remote Sensing, Wuhan 430079,{2. School of Electronic Information Wuhan University Wuhan China key laboratory of Geo{2. Environment and Geodesy Ministry of Education Wuhan China state Observatory for Atmospheric Remote Sensing Wuhan China

The characteristics of high-latitude planetary waves (PWs) in the troposphere and lower stratosphere (TLS) are studied by using the data from radiosonde observations during 1998 to 2.06 at three Alaskan stations in USA (Nome, 64.50°N, 165.43°W; McGrath, 62.97°N, 155.62.W; Fairbanks, 64.82.N, 147.87°W). It is found that strong PWs exist in two regions. One is around tropopause, and the other is in the polar night jet (PNJ) in winter. The PW activities are rather intermittent, and their lifetimes are no longer than two months. Among three perturbation components in zonal and meridional winds and temperature, the temperature disturbance amplitude is the smallest, and the amplitude for the meridional wind component the largest. Around the tropopause, quasi 5-, 10-, and 16-day PW activities can be observed simultaneously. Among these PW components, the quasi 5-day and 10-day PW are the weakest and strongest, respectively. Moreover, PWs around the tropopause are complex and no obvious season variability can be observed. However, in the PNJ, the higher region, only obvious quasi 10-day and 16-day PWs remain, with smaller amplitudes than those around the tropopause. And significant PWs in the PNJ occur only in winter. By calculating the refractive index for PWs, it is found that there is a persistent reflection layer around 11 km, which is thick in summer and becomes thin or even disappears in winter, revealing that PWs in the stratosphere can only occur in winter. PWs in the 2.03/2.04 winter at the three stations are analyzed in detail. It is found that for the focused observation duration, the quasi 10-day and quasi 16-day waves exist mainly in the troposphere and stratosphere, respectively. The quasi 10-day wave is a standing wave in the vertical direction, with vertical wavelength about 12.km in the temperature component and larger than 2. km in the meridional component. Moreover, the tropospheric quasi 10-day wave propagates westward with the zonal numbers between 2.an

关键词： planetary waves troposphere and lower stratosphere radiosonde

Synthesis,Crystal Structure,Thermal Decomposition and Sensitive Properties of a New Complex [Cu(IMI)_4](PA)_2

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Chemical research in chinese Universities 2012年第4期28卷 585-589页

作者： wang Shi-wei WU Bi-dong YANG Li zhang Tong-lai ZHOU Zun-ning zhang jian-guo state key {2. of Explosion science and Technology Beijing Institute of TechnologyBeijing 100081P.R.China

A new coordination complex [Cu（IMI）4]（PA）2.had been synthesized with imidazole（IMI） as ligands and picrate（PA-） groups as outer anions,and characterized by Fourier transform infrared（FTIR） spectrum and elemental *** crystal structure was determined by single crystal X-ray diffraction（XRD） *** crystallographic data show that the crystal belongs to monoclinic,C2.c space group,a=2.542.5） nm,b=0.91773（18） nm,c=1.3778（3） nm,β=107.854（3）° and Z=***,the central copper（II） ion is coordinated by four N atoms from four imidazole *** the molecular units are linked into a zigzag pattern along a-axis by the hydrogen bonds,and extended to the distance *** decomposition mechanisms were determined based on differential scanning calorimetry（DSC） and thermogravimetry-differential thermogravimetry（TG-DTG） analysis,and kinetic parameters of the first exothermic process were studied using Kissinger＇s and Ozawa-Doyle＇s method,*** tests show that the title complex has low sensitivity to external stimulus,but it has a higher energy of combustion of 14.2.kJ/g due to which it may be used as the additives of energetic materials to improve the explosive performance.

关键词： Copper Imidazole Crystal structure Thermal decomposition Sensitivity

International Meridian Circle Program

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空间科学学报 2020年第5期40卷 723-725页

作者： LIU William wang chi SHEN Xuhui WU {2. BLANC Michel YAN Yihua FU Suiyan YUE Xinan LEI Jiuhou GONG Wei zhang Shaodong zhang Qinghe wang Xin YANG Jing zhang Xiaoxin GAO Jing XU Jiyao YANG Guotao LI Hui REN Liwen YANG Fang National space science Center Chinese Academy of SciencesBeijing 100190 National Institute of Natural Hazards Ministry of Emergency Management of ChinaBeijing 100085 china Electronics Technology Group Corporation No.2. research Institute Xinxiang 259008 National Astronomical Observatories Chinese Academy of SciencesBeijing 100101 School of Earth and space sciences Peking UniversityBeijing 100871 Institute of Geology and Geophysics Chinese Academy of SciencesBeijing 100083 School of Earth and space sciences University of Science and Technology of ChinaHefei 230026 School of Electronic Information Wuhan UniversityWuhan 430079 School of space science and Physics Shandong UniversityWeihai 264209 Institute of Atmospheric Physics Chinese Academy of SciencesBeijing 100029 china Meteorological Administration Beijing 100089 Institute of Tibetan Plateau research Chinese Academy of SciencesBeijing 100101

The Earth is buffered from the ferocious onslaught of the solar wind by a thin layer of matter known as the atmosphere and *** layer absorbs energy from irradiance and outburst from the Sun,as well as from disasters,transient phenomena and anthropogenic emissions originated from *** complicated physics,the absorbed energy changes the atmospheric and geospace state and sometimes gets re-released to power extreme events such as space *** place globally,these complicated processes cannot be understood unless they are studied *** chinese scientists have proposed the International Meridian Circle Program(IMCP)to meet this *** operating nearly 1000 instruments encompassing all latitudes along with the 12.°E–60°W longitudes,IMCP aims,for the first time,to construct comprehensive 3D data representation of the atmosphere and geospace on a global scale and empower interdisciplinary research to tackle key questions related to Earth’s environment and climate change.

关键词： International Meridian Circle Program chinese Meridian Project Ground-based observation space weather Solar-terrestrial physics

Modulation transfer spectroscopy based on acousto-optic modulator with zero frequency shift

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chinese Physics B 2018年第11期27卷 481-486页

作者： Chen-Fei Wu Xue-Shu Yan Li-Xun Wei Pei Ma jian-Hui Tu jian-Wei {2. Li-Jun wang Department of Physics Tsinghua University Beijing 100084 China state key {2. of Precision Measurement Technology and Instruments Tsinghua University Beijing 100084 China Department of Precision Instruments Tsinghua University Beijing 100084 China National key laboratory of {2. and Technology on Vacuum Technology and Physics Lanzhou Institute of Physics Lanzhou 730000 China

We present a modulation transfer spectroscopy（MTS） configuration based on an acousto-optic modulator by using a variant of the typical double pass structure. One beam is modulated by using an acousto-optic modulator in opposite diffraction order to cancel the carrier frequency shift and produce a modulated pump beam. The line shape performance is investigated theoretically and experimentally. Laser frequency stabilization of the proposed configuration is demonstrated for the133 Cs ｜62.S1/2. F = 4 → ｜62.P3/2. F = 5 transition. The Allan deviations, which are measured by using beat note signals and the three-cornered hat method, are 3.6×10-11 in an integration time of 100 s and approximately 4×10-11 in a longer integration time.

关键词： modulation transfer spectroscopy laser stabilization

research of Power Take-off System for “Sharp Eagle Ⅱ” Wave Energy Converter

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china Ocean Engineering 2019年第5期33卷 618-627页

作者： YE Yin wang Kun-lin YOU Ya-ge SHENG song-wei Guangzhou Institute of Energy Conversion Chinese Academy of Sciences Guangzhou 510640 China key laboratory of Renewable Energy Chinese Academy of Sciences Guangzhou 510640 China Guangdong Provincial key laboratory of New and Renewable Energy {2. and Development Guangzhou 510640 China

The " Sharp Eagle” device is a wave energy converter of a hinged double floating body. The wave-absorbing floating body hinges on the semi-submerged floating body structure. Under the action of wave, the wave-absorbing floating body rotates around the hinge point, and the wave energy can be converted into kinetic energy. In this paper, the power take-off system of " Sharp Eagle Ⅱ” wave energy converter (the second generation of " Sharp Eagle”) was studied, which adopts the hydraulic type power take-off system. The 0-1 power generation mode was applied in this system to make the " Sharp Eagle Ⅱ” operate under various wave conditions. The principle of power generation was introduced in detail, and the power take-off system was simulated. Three groups of different movement period in{2.ts were used to simulate three kinds of wave conditions, and the simulation results were obtained under three different working conditions. In addition, the prototype of " Sharp Eagle Ⅱ” wave energy converter was tested on land and in real sea conditions. The experimental data have been collected, and the experimental data and simulation results were compared and validated. This work has laid a foundation for the design and application of the following " Sharp Eagle” series of devices.

关键词： Sharp Eagle Wave Energy Converter power take-off power generation mode hydraulic system

Structural Prediction and Analysis of Mix-metal Ammine Borohydrides: Li2.i（BH4）5（NH3）5

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Structural Prediction and Analysis of Mix-metal Ammine Boroh...

Toward Earth system modeling with resolved clouds and ocean submesoscales on heterogeneous many-core HPCs

中国化学会第2.届学术年会

作者： Kun wang jian-guo {2. state key {2. of Explosion science and Technology Beijing Institute of Technology Department of Chemistry Inorganic Chemistry LaboratoryUniversity of OxfordSouth Parks RoadOxfordOX1 3QRUK

In the present study,we apply Monte Carlo method to predict the crystal structure of Li2.i（BH4）5（NH3）5（abbreviated as ATLB）By using DFT method,we optimized the structure and obtain its electronic structure and bond *** the calculation,the generalized gradient approximation[1]of Perdew,Burke and Erzerhof[2.（GGA-PBE）for the exchange-correlation function has been used *** Vanderbilt-type ultrasoft pseudopotentials[3]with valence states 3s2.p64s2.d2.for Ti,1s2.s1 for Li,2.2.p1 for B,2.2.p3 for N,and 1s1 for H were used to describe the core electrons.A plane wave basis set with an energy cutoff of 500eV has been *** on the experiment study of ATLB[4],it is a very promising bimetallic AMB because there is no contamination in the *** 9%pure hydrogen can be librated within 400 min at 100°***.1shows the predicted cell structures of *** crystal ATLB adopts orthorhombic symmetry in {2. group P2.2.with the cell parameters of a=8.8653,b=13.4715 and c=*** crystalline ATLB,each Li+is coordinated to three[BH4]-groups through B which is parallel with the 100 ***,there is one[BH4]group is shared by Ti3+and Li+.And each Ti3+is hexahedron coordinated to five[NH3]groups through N and one[BH4]group through B.

关键词： Hydrogen storage material First principles theory Lithium borohydrides bimetallic ammine borohydride

来源： cnki会议评论

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National science Review 2023年第6期10卷 153-167页

作者： Shaoqing zhang Shiming Xu Haohuan Fu Lixin Wu Zhao Liu Yang Gao Chun Zhao Wubing Wan Lingfeng Wan Haitian Lu Chenling Li Yanfei Liu Xiaojing Lv Jiayu Xie Yangyang Yu Jun Gu Xuantong wang Yan zhang Chenhui Ning Yunlong Fei Xiuwen Guo Zhaoying wang Xue wang Zhenming wang Binglin Qu Mingkui Li Haoran Zhao Yingjing jiang Guang Yang Lv Lu Hong wang Hong An Xin zhang Yu zhang Wentao Ma Fujiang Yu Jing Xu Xiaopei Lin Xueshun Shen key laboratory of Physical Oceanography Ministry of Education/Institute for Advanced Ocean Study/Frontiers Science Center for Deep Ocean Multispheres and Earth System (DOMES) College of Oceanic and Atmospheric Sciences Ocean University of China Laoshan laboratory Ministry of Education key Lab for Earth System Modeling and Department of Earth System Science Tsinghua University National Supercomputing Center in Wuxi Frontiers science Center for Deep Ocean Multispheres and Earth System and Key Laboratory of Marine Environment and Ecology Ministry of Education Ocean University of China Deep space Exploration laboratory/School of Earth and space sciences University of Science and Technology of China School of Computer science and Technology University of Science and Technology of China CEAKJ ADPRHexa Inc. National Marine Environmental Forecasting Center state key {2. of Satellite Ocean Environment Dynamics Second Institute of Oceanography Ministry of Natural Resources chinese academy of Meteorological {2. The Center of Earth System Modeling and Prediction China Meteorological Administration

With the aid of the newly developed ’Sunway’ heterogeneous-architecture supercomputer,which has world-leading HPC(high-performance computer) capability,a series of high-resolution coupled Earth system models(SW-HRESMs) with up to 5 km of atmosphere and 3 km of ocean have been *** models can meet the needs of multiscale interaction studies with different computational *** we describe the progress of SW-HRESMs development,with an overview of the major advancements made by the international Earth science community in *** also show the preliminary results of SW-HRESMs with regard to capturing major weather-climate extremes in the atmosphere and ocean,stressing the importance of permitted clouds and ocean submesoscale eddies in modeling tropical cyclones and eddy-mean flow interactions,and paving the way for further model development to resolve finer scales with even higher resolution and more realistic ***,in addition to increasing model resolution,the development procedure for a non-hydrostatic cloud and ocean submesoscale resolved ESM is discusse d,laying out the major scientific directions of such a huge modeling advancement.

关键词： high-resolution Earth system models heterogeneous supercomputer cloud and submesoscale resolving weather-climate extremes finer cross-scale interactions