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双侧卵巢子宫内膜异位囊肿行腹腔镜下剔除术对卵巢储备功能及生育功能的影响

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中国妇幼保健 2014年第15期29卷 2387-2389页

作者：茅惠群江苏省苏州市吴江区第一人民医院妇产科 215200

目的:探讨双侧卵巢子宫内膜异位囊肿腹腔镜下剔除术对卵巢储备功能及生育能力影响。方法:随机选择66例双侧卵巢子宫内膜异位囊肿的患者,分为对照组33例,采用传统的异位子宫内膜剔除术,腹腔镜组33例患者,采用水平腹腔镜囊肿剔除术,收集... 详细信息

目的:探讨双侧卵巢子宫内膜异位囊肿腹腔镜下剔除术对卵巢储备功能及生育能力影响。方法:随机选择66例双侧卵巢子宫内膜异位囊肿的患者,分为对照组33例,采用传统的异位子宫内膜剔除术,腹腔镜组33例患者,采用水平腹腔镜囊肿剔除术,收集两组患者的一般资料,分别在手术前、术后2天、1、3、6个月检测患者体内血清LH、FSH、E2水平。结果:相比于对照组,腹腔镜组手术出血量及手术时间明显缩短(P<0.05)。结论:腹腔镜手术安全有效,对正常组织破坏较少,患者的生育功能一般在半年内均恢复正常,值得临床推广应用。

关键词：卵巢储备双侧卵巢囊肿生育功能子宫内膜异位腹腔镜囊肿剔除术

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基于三角自卷积窗的高精度电能计量算法

湖南大学学报（自然科学版） 2009年第3期36卷 31-35页

作者：温和滕召胜王一毛群辉李聪聪湖南大学电气与信息工程学院湖南长沙410082

提出了一种基于三角自卷积窗的插值FFT谐波分析和电能计量算法,结合三角自卷窗的频谱特性,给出了其实现流程,建立了基波和谐波分次电能计量方法.由于三角自卷积窗具有优良的旁瓣性能,因此基于三角自卷积窗的插值FFT算法能有效减少谐波... 详细信息

提出了一种基于三角自卷积窗的插值FFT谐波分析和电能计量算法,结合三角自卷窗的频谱特性,给出了其实现流程,建立了基波和谐波分次电能计量方法.由于三角自卷积窗具有优良的旁瓣性能,因此基于三角自卷积窗的插值FFT算法能有效减少谐波间相互干扰,提高谐波分析和电能计量准确度.仿真实验验证了本文算法的有效性和准确性.

关键词：电能计量三角自卷积窗快速傅立叶变换谐波分析

CaH2-promoted activity of Ni-carbonate interface for CO2 methanation

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Journal of Energy Chemistry 2025年第1期100卷 522-532页

作者： Jin-Peng Wang Guo-Cui mao hui-Lin Jiang Bao-Xia Dong Yun-Lei Teng School of Chemistry and Chemical Engineering Yangzhou University

Transition metal-carbonate interfaces often act as active sites in heterogeneous catalytic *** interface between transition metal and metal carbonate exhibits a dynamic equilibrium during the CO2hydrogenation reaction,involving surface carbonate hydrogenation and ***,there have been few reports on engineering the activity of the interface between transition metal and alkaline earth metal carbonate for catalytic *** work demonstrated that the incorporation of CaH2in Ni/CaCO3enhances the CO2methanation activity of the *** CO2conversion for Ni/CaH2-CaCO3reached 68.5%at 400°C,which was much higher than that of the Ni/CaCO3（31.6%） and Ni/CaH2-CaO （42.4%） ***,the Ni/CaH2-CaCO3catalysts remained stable during the stability test for 24 h at 400°C and 8 *** research revealed that CaH2played a crucial role in promoting the activity of the Ni-carbonate interface for ***2could modify the electronic structure of Ni and tune the structural properties of CaCO3to generate medium basic sites （OH groups）,which are favorable for the activation of H2and ***-situ Fourier transform infrared spectroscopy （FTIR） analysis combined with density functional theory calculations demonstrated that CO2activation occurs at the hydroxyl group （OH） on the CaH2-modified Ni-carbonate surface,leading to the formation of CO3H****,our study has confirmed that CO2methanation over the Ni/CaH2-CaCO3catalysts proceeds via the formate pathway.

关键词： Metal hydride Ni catalysts Carbonate Metal-carbonate interface

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基于UKF的电动汽车锂电池SOC估计方法

测控技术 2010年第3期29卷 89-91页

作者：毛群辉滕召胜方亮冯勇湖南大学电气与信息工程学院湖南长沙410082

准确估计电池的荷电状态(SOC,state of charge)是电动汽车电池管理系统研究的关键技术。基于Thevenin模型建立了状态空间方程组,采用无色卡尔曼滤波(UKF,unscented Kalman filtering)算法实现非线性条件下的SOC准确估计。硬件在环仿真... 详细信息

准确估计电池的荷电状态(SOC,state of charge)是电动汽车电池管理系统研究的关键技术。基于Thevenin模型建立了状态空间方程组,采用无色卡尔曼滤波(UKF,unscented Kalman filtering)算法实现非线性条件下的SOC准确估计。硬件在环仿真试验表明:UKF估计误差小于5%,且当SOC值低于50%时,其估计结果明显优于扩展卡尔曼滤波(EKF,extended Kalman filtering)方法,有较高的实用价值。

关键词：电动汽车锂电池 Thevenin模型荷电状态无色卡尔曼滤波

Vector meson's spin alignments in high energy reactions

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 5-20页

作者： Jin-hui Chen Zuo-Tang Liang Yu-Gang Ma Xin-Li Sheng qun Wang Key Laboratory of Nuclear Physics and Ion-beam Application (MoE) Institute of Modern PhysicsFudan University Institute of Frontier and Interdisciplinary Science Key Laboratory of Particle Physics and Particle Irradiation (MOE)Shandong University INFN-Firenze Department of Modern Physics University of Science and Technology of China School of Mechanics and Physics Anhui University of Science and Technology

The global spin alignment of vector mesons has been observed by the STAR collaboration at the Relativistic Heavy Ion Collider （RHIC） at Brookhaven National Laboratory （BNL）.It provides a unique opportunity to probe the correlation between the polarized quark and antiquark in the strongly coupled quark-gluon plasma （sQGP） produced in relativistic heavy ion collisions,opening a new window to explore the properties of s *** addition,spin alignments of vector mesons have also been observed in other high-energy particle collisions such as e+e-annihilations at high energies where hadron production is dominated by quark fragmentation *** results obtained are quite different from those obtained in heavy ion collisions where quark coalescence/combination mechanism dominates suggesting strong dependence on hadronization *** comprehensive studies in different hadronization processes are *** this article,we present a brief review of theoretical and experimental advances in the study of vector meson’s spin alignments in a variety of high-energy particle collisions,with emphasis on hadronization mechanisms.

关键词： vector meson spin alignment global polarization relativistic heavy ion collisions fragmentation

Nucleation and Growth Processes During Molecular-Beam Epitaxy of Ternary Compounds

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Chinese Physics Letters 1996年第11期13卷 855-858页

作者： mao hui-bing Department of Materials Science Fudan UniversityShanghai 200433

In this letter the effect of the different migration rates of two kinds of cations on the nucleation and growth processes during molecular-beam epitaxy of ternary systems was studied in detail by Monte Carlo *** AlGaAs ternary system,in which the migration rate of cation Ga is larger than that of Al,there are three types of nucleation:Ga-Ga,Al-Ga and Al-Al,which show different characteristics in the growth processes.

关键词： ternary simulation Ternary

Test and numerical investigations on static and dynamic characteristics of extra-wide concrete self-anchored suspension bridge under vehicle loads

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Journal of Central South University 2017年第10期24卷 2382-2395页

作者： ZHOU Guang-pan LI Ai-qun LI Jian-hui DUAN mao-jun School of Civil Engineering Southeast University Beijing Advanced Innovation Centre for Future Urban Design Beijing University of Civil Engineering and Architecture School of Civil Engineering Nanjing Forestry University

The present work is aimed at studying the mechanic properties of the extra-wide concrete self-anchored suspension bridge under static and dynamic vehicle loads. Based on the field test using 12 heavy trucks and finite element simulations, the static deformations of different components, stress increments and distributions of the girder, as well as the vibration characteristics and damping ratio of the Hunan Road Bridge were analyzed, which is the widest self-anchored suspension bridge in China at present. The dynamic responses were calculated using the Newmark-β integration method assisted by the simulation models of bridge and vehicles, the influences on the dynamic impact coefficient(DIC) brought by the vehicle parameters, girder width, eccentricity travel and deck flatness were also researched. The spatial effect of the girder is obvious due to the extra width, which performs as the stress increments distribute unevenly along the transverse direction, and the girder deflections and stress increments of the upper plate change as a "V" and "M" shape respectively under the symmetrical vehicle loads affected by the shear lag effect, cross slope and local effect of the wheels, the maximum of stress increments are located in the junctions with the inner webs. The obvious girder torsional deformation and the apparent unevenness of the hanger forces between the two cable planes under the eccentric vehicle loads, together with the mode shapes such as the girder transverse bending and torsion which appear relatively earlier, all reflect the weakened torsional rigidity of the extra-wide girder. The transverse displacements of towers are more obvious than the longitudinal ones. As for the influences on the DIC, the static effect of the heavier vehicles plays a major role when pass through with a higher speed and the changes of vehicle suspension stiffness generate greater impacts than the suspension damp. The values of DIC in the vehicle-running side during the eccentric tra

关键词： self-anchored suspension bridge extra-wide girder field test simulation vehicle loads increments distribution damping ratio mode shape dynamic impact coefficient

Emitter-couple logic circuit design based on the threshold-arithmetic algebraic system

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Journal of Zhejiang University-Science C(Computers and Electronics) 2013年第10期14卷 808-814页

作者： mao-qun YAO Li-bin ZHANG Hangzhou Institute Service Engineering Hangzhou Normal University School of Information Science and Engineering Hangzhou Normal University

Based on the threshold-arithmetic algebraic system which has been proposed for current-mode circuit design,we propose a systematic methodology for emitter-couple logic(ECL)circuit *** to the traditional methodologies and the theory of differential current switches,the proposed methodology uses the HE map and the characteristics of the internal current signals of ECL circuits to determine the external voltage *** operations of the HE map are direct and simple,and the current signals are easy to add or subtract,which make this methodology more flexible,direct,and effective,and make it possible to design arbitrary binary and multi-valued logic *** example circuits are designed and simulated by HSPICE using 0.18μm TSMC *** results confirm the validity of the proposed methodology.

关键词： Threshold-arithmetic algebraic system HE map ECL circuit Current-mode circuits

Environmental influence of Wuhan urban agglomeration development and strategies of environmental protection

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Journal of Environmental Sciences 2006年第3期18卷 616-623页

作者： GAO qun LIU Ying-tao mao Han-ying Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing 100101 China Chinese Academy of Agricultural Sciences Beijing 100081 China

In Wuhan urban agglomeration （WUA）, the population growth and concentration, the industrial development and urban sprawl have been affecting the environment ftmdamentally. Comparing with Yangtze delta metropolitan region, the level of urbanization and industrialization of WUA has lagged behind for about 10 years; but the problems in environmental protection and rehabilitation are commonly serious. In the future, WUA should avoid unnecessary mistakes and seek a win-win strategy for economy and environment in its large-scale development stage. Based on the analysis of the changing of main environmental pollutants and the coupled curves in past decades, the paper discussed the important links among the urban environmental pollutions, industry growth and urban sprawl in WUA. It is concluded that the integration of economic and environmental policies in urban development is more required and significant at the large urban agglomeration region. Four proactive and long-term strategies need to be adopted to provide prior guidance and better protection for the development of WUA.

关键词： environmental problem urban development Wuhan urban agglomeration strategies