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Smart Grids with Intelligent Periphery:An Architecture for the Energy Internet

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Engineering 2015年第4期1卷 436-446页

作者： felix f.wu Pravin P.Varaiya Ron S.Y.Hui Department of Electrical Engineering and Computer Sciences University of California Department of Electrical and Electronic Engineering The University of Hong Kong

A future smart grid must fulfill the vision of the Energy Internet in which millions of people produce their own energy from renewables in their homes, offices, and factories and share it with each other. Electric vehicles and local energy storage will be widely deployed. Internet technology will be utilized to transform the power grid into an energysharing inter-grid. To prepare for the future, a smart grid with intelligent periphery, or smart GRIP, is proposed. The building blocks of GRIP architecture are called clusters and include an energy-management system （EMS）-controlled transmission grid in the core and distribution grids, micro-grids, and smart buildings and homes on the periphery; all of which are hierarchically structured. The layered architecture of GRIP allows a seamless transition from the present to the future and plug-and-play interoperability. The basic functions of a cluster consist of （1） dispatch, （2） smoothing, and （3） mitigation. A risk-limiting dispatch methodology is presented; a new device, called the electric spring, is developed for smoothing out fluctuations in periphery clusters; and means to mitigate failures are discussed.

关键词： smart grid future grid Energy Internet energy- management system integrating renewables power system operation power system control distribution automation systems demand-side management

Effect of elastic modulus and time interval on the seismic slope stability

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Effect of elastic modulus and time interval on the seismic s...

中国科学院地质与地球物理研究所2013年度（第13届）学术年会

作者： J.B.Xu f.wu Y.Zheng Key Laboratory of Engineering Geomechanics Institute of Geology and GeophysicsChinese Academy of Sciences Department of Civil Engineering Logistical Engineering University

After WenChuan earthquake,tensile-shear failure surface has become a recognized geotechnical slope failure surface,the traditional shear failure surface does not meet the actual situation of *** article revises the traditional dynamic time-history analysis,and advances a new method to judge the slope *** method has a significant advantage in theory and practice,in order to ensure the results is uniqueness and accuracy,we must ensure the criteria don’t influence by other factors. So the article simulates the seismic slope by using fLAC software,and analyzes the elastic modulus and time intervals whether it will affect the stability safety factor of seismic slop through calculation to verify the correctness of the method as a way to judge slope stability is feasible.

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Catalytic performances of cobalt-based catalysts for hydrogen generation with sodium borohydride solution

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Catalytic performances of cobalt-based catalysts for hydroge...

第九届全国氢能学术会议

作者： C.wu,f.wu,Y.Bai Beijing Institute of Technology,China

Hydrogen supply is one of the most important issues for wide practice of proton exchange membrane fuel cell(PEMfC).There are many ways to get *** instance,mass hydrogen production can be gained with chemical methods,from electrolysis of water,or by biologic ***,it is found that hydrogen generation from catalysis of sodium borohydride(NaBH) is flexible and controllable,and may be a promising way for on-site

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Reactivation of an overlooked landslide in site of power plant of Shawan hydropower station,Sichuan,China

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Reactivation of an overlooked landslide in site of power pla...

中国科学院地质与地球物理研究所2012年度（第12届）学术年会

作者： S.W.Qi f.wu Y.Song Z.Q.Li Engineering Geomechanics Lab Institute of Geology and GeophysicsChinese Academy of Sciences

The power plant of planning construction Shawan hydropower station was planned in the toe area of the right bank *** scale cracks with maximum length over 20 m and downward displacement over 1.0 m occurred in the Quaternary accumulation of the middle part of the slope during excavating site for the power plant,and as a result the excavation has to be stopped.A monitor net was placed on the slope and the monitor result indicated that a slide mass has been *** with topography analysis,geological investigation i.e.,borehole exploration,geophysical investigation,it can be concluded that the slope where the power plant located is an overlooked giant ancient landslide during pre-stage investigation for site of hydropower plant,and the landslide is partially *** results indicated that the deformation of the slide is not even,the displacement of the head area is mainly vertical component,and the displacement of the toe area is mainly horizontal *** slide was induced by lots of drainage from No.2 access tunnel,the successive rainfall would accelerate the deformation, and the excavation of new provincial highway in toe area had a crucial effect on local deformation. The slide mass had experienced rainstorm seasons and it did not present severe deformation,thus the slide mass could be stable if drainage system including surface and underground is *** risk of blocking up Muli River is *** conclusions presented above have been verified in practice.

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基于Helmholtz方程最小二乘法声全息复杂结构振动噪声响应分析(英文)

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汽车工程学报 2011年第4期1卷 237-247页

作者： Sean f.wu Logesh Kumar Natarajan 韦恩州立大学机械工程系

论述了以车身模型为例的复杂结构声振响应的分析方法。分析的目的是为了识别对车内声场的声压有关键贡献的板件。为此,本文采用基于Helmholtz方程最小二乘法的近场声全息(NAH)技术,利用对任意形状的表面进行近场的声压测量结果对结构表... 详细信息

论述了以车身模型为例的复杂结构声振响应的分析方法。分析的目的是为了识别对车内声场的声压有关键贡献的板件。为此,本文采用基于Helmholtz方程最小二乘法的近场声全息(NAH)技术,利用对任意形状的表面进行近场的声压测量结果对结构表面的振动噪声响应进行重构。首先,对部件表面法向振动速度和表面的声压分布进行了重构,其次计算了部件表面声强分布以及每个部件的声功率流与车内任意一点声压的相关程度。每个部件对车内一点声压的相对贡献取决于板件到该点的声功率流。利用基于HELS近场声全息只需要进行一组声压测量就可以对板件的结构噪声进行分析,并且能够进行板件相对贡献量的研究。本文的分析结果得到了试验结果的证明,验证试验是在全消声室内进行的。

关键词： NAH HELS 声场重构

Precision determination of dipole transition elements with a single ion

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Photonics Research 2024年第10期12卷 2242-2248页

作者： H.SHAO Y.-B.TANG H.-L.YUE f.-f.wu Z.-X.MA Y.HUANG L.-Y.TANG H.GUAN K.-L.GAO State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics Innovation Academy for Precision Measurement Science and TechnologyChinese Academy of SciencesWuhan 430071China Physics Teaching and Experiment Center Shenzhen Technology UniversityShenzhen 518118China University of Chinese Academy of Sciences Beijing 100049China College of Sciences China Jiliang UniversityHangzhou 310018China Hefei National Laboratory University of Science and Technology of ChinaHefei 230088China wuhan Institute of Quantum Technology Wuhan 430206China Hefei National Research Center for Physical Sciences at the Microscale and School of Physical Sciences University of Science and Technology of ChinaHefei 230026China

In the field of quantum metrology,transition matrix elements are crucial for accurately evaluating the black-body radiation shift of the clock transition and the amplitude of the related parity-violating transition,and can be used as probes to test quantum electrodynamic effects,especially at the 10^(−3)–10^(−4)*** developed a universal experimental approach to precisely determine the dipole transition matrix elements by using the shelving technique,for the species where two transition channels are involved,in which the excitation pulses with increasing duration were utilized to induce shelving,and the resulting shelving probabilities were determined by counting the scattered photons from the excited^(2)P_(1∕2)state to the^(2)S_(1∕2)ground *** the scattered photons offers several advantages,including insensitivity to fluctuations in magnetic field,laser intensity,and frequency *** intensity-alternating sequence to minimize detection noise and a real-time approach for background photon correction were implemented in *** applied this technique to a single Yb^(+)ion,and determined the 6p^(2)P_(1∕2)-5d^(2)D_(3∕2)transition matrix element 2.9979(20)ea0,which indicates an order of magnitude improvement over existing *** combining our result with the 6p^(2)P_(1∕2)lifetime of 8.12(2)ns,we extracted the 6s^(2)S_(1∕2)-6p^(2)P_(1∕2)transition matrix element to be 2.4703(31)*** accurately determined dipole transition matrix elements can serve as a benchmark for the development of high-precision atomic many-body theoretical methods.

关键词： transition dipole elements

SPHINGOSINE-1-PHOSPHATE SUPPRESSES CYCLOPHOSPHAMIDE INDUCED fOLLICLE APOPTOSIS IN HUMAN fETAL OVARIAN TISSUE

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SPHINGOSINE-1-PHOSPHATE SUPPRESSES CYCLOPHOSPHAMIDE INDUCED ...

2014浙江省计划生育与生殖医学学术年会暨“第七届生殖安全转化医学研讨会”

作者： Y.Meng Y.Zhou f.wu Z.Xu W.Chen S.Xie C.Xie Reproductive centre The first Affiliated hosptal of Wenzhou medical universily

Problem statement:As the tremendous progress was achieved in chemo-and radiotherapy,the number of cancer survivor raised steadily,but the quality of life decreased due to the anti-cancer treatment related premature ovarian failure(POf).Recent researches have demonstrated apoptosis is one of the important mechanisms in the above

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基于价格灵敏度分析的风储系统经济性评估(英文)

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电力系统自动化 2013年第1期37卷 143-148页

作者：刘恺张昆钟金侯云鹤吴复立刘皓明中国南方电网电力调度控制中心广东省广州市510620 香港大学电机电子工程学系河海大学能源与电气学院江苏省南京市210098

提出一种针对含大规模风电的电力系统储能和备用的灵敏度定价方法。结合随机场景分析技术,建立考虑直流潮流约束的调度优化模型,可涵盖所有可能的风电出力场景。基于所提模型,采用边际定价方法,通过最优性条件和拉格朗日乘子,推导了传... 详细信息

提出一种针对含大规模风电的电力系统储能和备用的灵敏度定价方法。结合随机场景分析技术,建立考虑直流潮流约束的调度优化模型,可涵盖所有可能的风电出力场景。基于所提模型,采用边际定价方法,通过最优性条件和拉格朗日乘子,推导了传统发电机、风电和储能系统的能量价格及备用服务价格因子。该定价方法可量化电网中各种机组和储能装置对于系统运行的经济价值,为调度运行和规划提供了参考和依据。

关键词：储能 Karush-Kuhn-Tucker(KKT)条件边际定价理论随机规划风电

Very high-K KREEP-rich clasts in the impact melt breccia of the lunar meteorite SaU 169:New constraints on the last residue of the Lunar Masma Ocean

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Very high-K KREEP-rich clasts in the impact melt breccia of ...

中国科学院地质与地球物理研究所2012年度（第12届）学术年会

作者： Y.Lin W.Shen Y.Liu L.Xu B.A.Hofmann Q.Mao G.Q.Tang f.wu X.H.Li Key Laboratory of the Earth's Deep Interior Institute of Geology and GeophysicsChinese Academy of Sciences State Key Laboratory of Lithospheric Evolution Institute of Geology and GeophysicsChinese Academy of Sciences National Astronomical Observatories Chinese Academy of Sciences

In the impact melt breccia(IMB) of Sayh al Uhaymir(SaU) 169,the most KREEP-rich lunar meteorite to date(Gnos et al.,2004),clasts of a new type of lithologies were discovered,consisting of Ca-poor and Ca-rich pyroxenes(60.8 vol.%), Ba-rich K-feldspar(27.9 vol.%),phosphates(5.6 vol.%),Nb-rich ilmenite(4.0 vol.%),zircon(1.2 vol.%) and minor sulfide (0.6 vol.%).These mafic lithic clasts are more enriched in KREEP component(～1500×CI) than the host meteorite and are highly enriched in *** are referred to as very high-K(VHK) KREEP lithology,and probably most close to the last residual liquid of the Lunar Magma Ocean without significant dilution by other Mg-rich *** fine-grained matrix of the SaU 169 IMB has very similar mineral chemistry to the VHK KREEP lithology,but contains abundant plagioclase with trace *** matrix shows decoupling of K from the REEP-like component;however,it cannot be simply interpreted by mixing the VHK KREEP lithology with anorthosites,which should have diluted the REEP-like component with the same proportion. STMS Pb-Pb dating was conducted on zircons in various petrographic settings and with different crystal *** analyses show a main age peak at 3921±3 Ma and a smaller one at 4016±6 *** main age peak is identical to the previous Pb-Pb age by Gnos et al.(2006) and U-Pb age by Liu el al.(2009),dating the catastrophic shock event contributed to the formation of SaU 169 *** older ages are consistent with the previous report of an older bulk U-Pb age by Kramers et al.(2007),suggestive of presence of relict crystals in a few large zircon *** VHK KREEP clasts predated the finegrained matrix,but have the same zircon Pb-Pb ages as the latter within the analytical *** was converted to maskelynite whereas zircon was shocked to diaplectic glass,probably by a second event at～2.8 ***, the identical zircon Pb-Pb ages of the amorphous parts and the remained crystalline areas indicate n

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