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Mesospheric tide comparisons at low latitudes observed by two collocated meteor radars

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Earth and Planetary Physics 2025年第1期9卷 54-68页

作者： jian Li wen Yi XiangHui Xue Jie Zeng HaiLun Ye jianYuan Wang JinSong Chen Na Li TingDi Chen Chinese Academy of Sciences(CAS)Key Laboratory of Geospace Environment Department of Geophysics and Planetary SciencesUniversity of Science and Technology of ChinaHefei 230026China CAS Center for Excellence in Comparative Planetology Anhui Mengcheng Geophysics National Observation and Research StationUniversity of Science and Technology of ChinaHefei 230026China Hefei National Laboratory University of Science and Technology of ChinaHefei 230026China Collaborative Innovation Center of Astronautical Science and Technology Harbin 150001China National Key Laboratory of Electromagnetic Environment China Research Institute of Radiowave PropagationQingdao 266107China Yunnan Kunming Electromagnetic Environment National Observation and Research Station Qujing Kunming 655000China

Accurate knowledge of mesospheric winds and waves is essential for studying the dynamics and climate in the mesosphere and lower thermosphere(MLT)*** this study,we conduct a comparative analysis of the mesosphere tidal results obtained from two adjacent meteor radars at low latitudes in Kunming,China,from November 2013 to December *** two radars operate at different frequencies of 37.5 MHz and 53.1 MHz,***,overall good agreement is observed between the two radars in terms of horizontal winds and tide *** results show that the dominant tidal waves of the zonal and meridional winds are diurnal and semidiurnal ***,we conduct an exhaustive statistical analysis to compare the tidal amplitudes and vertical wavelengths recorded by the dual radar systems,which reveals a high degree of alignment in tidal *** investigation includes variances and covariances of tidal amplitudes,which demonstrate remarkable consistency across measurements from both *** finding highlights clear uniformity in the mesospheric tidal patterns observed at low latitudes by the two neighboring meteor *** of the comparative analysis specifically underscore the significant correlation in vertical wavelength measurements,validating the robustness of radar observations for tidal research.

关键词： mesosphere and lower thermosphere region meteor radar mesospheric winds tides

Stepwise assembly to construct stable copper(I) cluster-based circularly polarized luminescent MOFs

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Science China Chemistry 2025年

作者： Jing-wen Xie Meng-Ting Wang Yan Jin Si Li jian-Hua Qin Shuang-Quan Zang Tomas C.W.Mak College of Chemistry Henan Key Laboratory of Crystalline Molecular Functional Materials Zhengzhou University College of Chemistry and Chemical Engineering Luoyang Normal University Department of Chemistry The Chinese University of Hong Kong

Circularly polarized luminescence （CPL） materials have been extensively studied in recent years owing to their widespread applications in 3D display,optical storage,optical anti-counterfeiting,and biological imaging,***（I） clusters have emerged as a promising candidate for CPL materials,driven by their cost-effectiveness,superior luminescent properties,precise structure,and low ***,the poor environmental stability of copper（I） clusters renders their synthesis and preservation challenging,thereby significantly impeding their ***,we have designed and synthesised a chiral double-coordinated ligand in order to construct copper（I） cluster nodes that can be further *** anticipated,by utilizing stepwise assembly strategy,a Cu4cluster node co-modified by chiral alkynyl ligands and triphenylphosphine was further assembled with Cd2+ions to obtain 2D layers structure,L/*** L/D-Cu4-Cd exhibits excellent stability and optical properties,including bright yellow emission,solvent-responsive luminescence,and CPL activity with a maximum glumup to 2.0×10-3,which shows potential applications in the WLED and *** interestingly,the material also exhibits deflection ability towards different wavelengths of linearly polarized light,showing certain potential in the preparation of circular polarizer.

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Prevention and control of coronavirus disease 2019 in Grade-III Class-A hospitals outside of Wuhan

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Chinese Medical Journal 2020年第16期133卷 1978-1980页

作者： jian-wen gu Hong-jiang Wang Quan-Xing Shi Yang Tao Feng Du Yun-Ming Li Yong-Xing Xu Li-Ping Jia He-Ming Yang Xiao-Tong Lou Ye-Tang Xiao Bin Shen Yu-Xia Cheng Yu-Wei Ding Zheng Zhang Xin guan Shi Wang Li Zhang Yu-Zhong Duan Chuang Nie The Chinese People’s Liberation Army Strategic Support Force Characteristic Medical Center Beijing 100101China General Hospital of Western Theater Command ChengduSichuan 610083China

Now,a novel coronavirus epidemic has posed a major threat to human *** staff face a high risk of occupational exposure at very early stages of an *** the medical staff are infected,it will greatly affect the“fighting capacity”of medical institutions,and help the virus spread within *** issues strongly suggest the critical role of hospital management,prevention,and control systems in the fight against infectious diseases.

关键词： prevention outside fighting

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锗锡浓度对硅锗锡合金性能影响的研究

原子与分子物理学报 2025年第5期42卷 163-174页

作者：顾永顺温淑敏内蒙古工业大学理学院呼和浩特010051

由于SiGeSn合金材料其具有高的载流子迁移率和较长的载流子寿命,并且其结构具有较高的热力学稳定性,所以在光电子领域中是一种具有非常大应用潜力的半导体材料.本文采用密度泛函理论中的广义梯度近似GGA+U的方法,构建并计算了本征半导体... 详细信息

由于SiGeSn合金材料其具有高的载流子迁移率和较长的载流子寿命,并且其结构具有较高的热力学稳定性,所以在光电子领域中是一种具有非常大应用潜力的半导体材料.本文采用密度泛函理论中的广义梯度近似GGA+U的方法,构建并计算了本征半导体Si_(96)与五组掺杂模型Si_(92)Ge_(2)Sn_(2)、Si_(88)Ge_(4)Sn_(4)、Si_(84)Ge_(6)Sn_(6)、Si_(80)Ge_(8)Sn_(8)、Si_(76)Ge_(10)Sn_(10)的电子结构及光学性质.通过对计算结果的分析可知,Ge,Sn的加入使得Si材料的带隙宽度减小,并且发生了由间接带隙向直接带隙的转变;Ge,Sn浓度最高的SiGeSn合金的形成能相对较高,稳定性相较于Ge,Sn含量低的材料较差;随着Ge,Sn掺杂浓度的提高,电子态密度图显示出越来越明显的杂化现象,并且态密度的峰值主要有Si原子的s轨道提供;Ge,Sn浓度的提高还使得SiGeSn合金的吸收系数在可见光及近红外区域内增加、反射率在可见光及以上波段范围内提高、折射率变低、消光系数曲线向红外区域移动等光学性质变化,表明可以通过调节Ge,Sn浓度来获得合适的光学特性,这为SiGeSn半导体在红外区域光电材料和器件的应用上提供了研究方向.

关键词： SiGeSn 电子特性光学性质

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Effects of Atomic Mixing in Inertial Confinement Fusion by Multifluid Interpenetration Mix Model

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Communications in Theoretical Physics 2009年第12期52卷 1102-1106页

作者： gu jian-Fa YE wen-Hua Institute of Applied Physics and Computational Mathematics Beijing 100094 China

The effects of atomic-level rnixing are systemically investigated in a multifluid interpenetration mix model ,and results are compared with the single-fluid model＇s simulations and experimental data. It is shown that increasing the model free parameter α, shock Mach number, and the initial density discontinuity makes the mix length and fraction of mixing particle increase, resulting in the lower shock temperatures compared with the results of single-fluid model without mixing. Recent high-compressibility direct-drive spherical implosions on OMEGA are simulated by the interpenetration mix modal. The calculations with atomic mixing between fuel and shell match quite well with the observations. Without considering any mixing, the calculated neutron yields and ion temperatures are overpredicted; while inclusion of the interpenetration mix model with the adjustable parameter α could fit the simulated neutron yields and ion temperatures well with experimental data.

关键词： multifluid interpenetration mix model atomic mixing inertial confinement fusion

Identification of a dual functional betulinic acid analog for the treatment of osteoarthritis by phenotypic screening

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Science China Life Sciences 2025年第1期 300-302页

作者： Ze-Min Lin Mai Xiang wen-Hui Wei Shu-Hui Fan Li Chen Jie Wang Xiao-Qian Yang Chun-Hao Yang Shi-Jun He jian-Ping Zuo Laboratory of Immunopharmacology State Key Laboratory of Drug ResearchShanghai Institute of Materia MedicaChinese Academy of Sciences School of Pharmacy University of Chinese Academy of Sciences School of Pharmacy Nanjing University of Chinese Medicine State Key Laboratory of Drug Research Department of Medicinal ChemistryShanghai Institute of Materia MedicaChinese Academy of Sciences Innovation Research Institute of Traditional Chinese Medicine Shanghai University of Traditional Chinese Medicine Experiment Center for Science and Technology Shanghai University of Traditional Chinese Medicine

Dear Editor, Phenotypic drug discovery, which observes compound effects on physiology,has given way to targeting specific molecules, but has revived by using modern methods to find drugs based on therapeutic outcomes in disease models(Vincent et al., 2022). Osteoarthritis(OA) is a prevalent chronic joint disorder, primarily affecting knee joints, with osteoclast activation due to low-grade inflammation resulting in increased bone resorption and structural changes in the joint(Katz et al.,2021).

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Pilot power based rate control in CDMA 2000 1x EV-DO Rev-A

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The Journal of China Universities of Posts and Telecommunications 2008年第1期15卷 118-122页

作者： LIU Xiao-feng gu jian YANG Hong-wen Wireless communication Center Beijing University of Posts andTelecommunications Beijing 100876 China

This article proposes a new algorithm to improve the rate control efficiency of enhanced reverse link medium access control （RLMAC） in the code division multiple access （CDMA） 1x EV-DO release A（Rev. A） system. The new algorithm brings reverse access terminal （AT） pilot power to the RLMAC rate control procedure and makes it easier for a low pilot power user to increase its data rate when the system is slightly loaded and harder to decrease its date rate when the system is heavily loaded. Numerical results of system level simulations show that the new algorithm can bring higher system throughput, lower AT transmission power, and lower system load.

关键词： RLMAC CDMA 1x EV-DO pilot power rate control

Deterministic Three-Copy Entanglement Concentration of Photons through Direct Sum Extension and Auxiliary Degrees of Freedom

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Chinese Physics Letters 2013年第7期30卷 13-16页

作者： ZHAO Jie LI wen-Dong gu Yong-jian Department of Physics Ocean University of ChinaQingdao 266100

The schematic optical realization of deterministic multicopy(three-copy)entanglement concentration under local operations and classical communication(LOCC)is presented,which can resort to the linear optical elements,controlled-NOT gate that uses weak cross-Kerr nonlinearity effect and entangled qudits with different degrees of *** concentration is based on Nielsen's theorem,which in principle quantifies the unit success *** addition,the required positive operator-valued measurement(POVM)is implemented through direct sum extension,because the least number of ancillary dimensions is *** construction of POVM is systematically formulated,which results in the feasibility to generate the protocol to n-copy(n>3)cases.

关键词： dimensions valued realization

Preliminary Research on Syndrome Types of Chinese Medicine in Children with Primary Nephrotic Syndrome

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Chinese Journal of Integrative Medicine 2018年第8期24卷 579-583页

作者： SUN wen YU jian ZENG gu-lan ZHANG Bing-feng Department of Traditional Chinese Medicine Children's Hospital of Fudan University Department of Pediatrics Xiamen Hospital of Traditional Chinese Medicine Department of Gastroenterology Children's Hospital of Fudan University

Objective： To provide an objective reference for the syndrome types of Chinese medicine（CM） associated with pediatric primary nephrotic syndrome（PNS）.Methods： A cross-sectional study was *** on clinical symptoms,CM syndrome types,biochemical indices,and medications used were collected from 98 children with ***,the correlation between CM syndromes and biochemical indices,as well as medications used,was ***： The four most common symptoms in children with PNS were brown urine,red tongue,excessive sweating,and swelling of the face and *** syndromes of qi deficiency of Fei（Lung） and Shen（Kidney）（FSQD） and yin deficiency of Gan（Liver） and Shen（GSYD） were the most common main CM syndrome *** syndrome score correlated significantly with the total cholesterol level,urine protein/creatinine ratio,and urine Ig G and albumin levels（P〈0.01 or P〈0.05）.The use of maintenance glucocorticoids combined with immunosuppressive agents correlated with FSQD syndrome,and the use of maintenance glucocorticoids alone correlated with GSYD syndrome（P〈0.05）.Conclusion： Two of the most common CM syndrome types were FSQD and GSYD *** syndrome may be caused by some factors related to lipid levels,protein loss,and the use of immunosuppressive *** use of maintenance glucocorticoids may cause GSYD syndrome.

关键词： primary nephrotic syndrome Chinese medicine syndrome type correlation analysis