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Michelson laser interferometer-based vibration noise contribution measurement method for cold atom interferometry gravimeter

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Chinese Physics B 2020年第7期29卷 85-91页

作者： Ning Zhang Qingqing Hu Qian wang Qingchen Ji Weijing Zhao Rong Wei yuzhu wang Key Laboratory for Quantum Optics Shanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghai 201800China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China Advanced Interdisciplinary Technology Research Center National Innovation Institute of Defense TechnologyBeijing 100010China Department of Physics Shanghai UniversityShanghai 201800China

The measurement performance of the atom interferometry absolute gravimeter is strongly affected by the ground vibration *** propose a vibration noise evaluation scheme using a Michelson laser interferometer constructed by the intrinsic Raman laser of the atomic *** analysis shows that the vibration phase measurement accuracy is better than 4 mrad,which corresponds to about 10-^10 g accuracy for a single shot gravity *** with the commercial seismometer or accelerometer,this method is a simple,low cost,direct,and fully synchronized measurement of the vibration phase which should benefit the development of the atomic *** the other side,limited by equivalence principle,the result of the laser interferometer is not absolute but relative vibration *** cap method could be used to evaluation the noise contribution of vibration,which is a different method from others and should benefit the development of the atomic gravimeter.

关键词： atomic gravimeter Raman laser vibration monitoring

Applying a mixed light field generated from a two-level atomic ensemble to two-photon interference

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Photonics Research 2020年第6期8卷 781-787页

作者： SHUYU ZHOU SHANCHAO ZHANG YING wang yuzhu wang Key Laboratory for Quantum Optics Shanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghai 201800China Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials SPTESouth China Normal UniversityGuangzhou 510006China School of Mathematics and Physics Jiangsu University of Science and TechnologyZhenjiang 212003China

A mixed light field generated from a two-level atomic ensemble can be used for two photon *** this mixed light field,correlated paired photons generated from a four wave mixing process provide a signal of two-photon interference,while Rayleigh scattered photons of the pump laser provide a stable reference to calibrate the normalized second-order correlation *** demonstrate two-photon interference using the Hong-Ou-Mandel and Hanbury Brown-Twiss interferometers.A direct quantitative comparison between theoretical predictions and experimental data is performed under perturbed experimental conditions,which reveal this kind of light source has potential application for quantum metrology.

关键词： function. mixed ensemble

Structural insights into AtABCG25,an angiosperm-specific abscisic acid exporter

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Plant Communications 2024年第1期5卷 284-295页

作者： Jian Xin Yeling Zhou Yichun Qiu He Geng yuzhu wang Yi Song Jiansheng Liang Kaige Yan Department of Chemical Biology School of Life SciencesSouthern University of Science and TechnologyShenzhen 518055China Institute of Plant and Food Science Department of BiologySchool of Life SciencesSouthern University of Science and TechnologyShenzhen 518055China Max Planck Institute of Molecular Plant Physiology Potsdam-GolmGermany Institute for Biological Electron Microscopy Southern University of Science and TechnologyShenzhenGuangdongChina

Cellular hormone homeostasis is essential for precise spatial and temporal signaling responses and *** acid(ABA)plays pivotal roles in orchestrating various developmental and stress re-sponses and confersfitness benefits over ecological and evolutionary timescales in terrestrial *** ABA level is regulated by complex processes,including biosynthesis,catabolism,and ***25 is thefirst ABA exporter identified through genetic screening and affects diverse ABA *** the structural basis of ABA export by ABCG25 is critical for further manipulations of ABA homeostasis and *** used cryo-electron microscopy to elucidate the structural dynamics of AtABCG25 and successfully characterized different states,including apo AtABCG25,ABA-bound AtABCG25,and ATP-bound AtABCG25(E232Q).Notably,AtABCG25 forms a homodimer that fea-tures a deep,slit-like cavity in the transmembrane domain,and we precisely characterized the critical residues in the cavity where ABA *** binding triggers closure of the nucleotide-binding domains and conformational transitions in the transmembrane *** show that AtABCG25 belongs to a conserved ABCG subfamily that originated during the evolution of *** subfamily neofunctionalized to regulate seed germination via the endosperm,in concert with the evolution of this angio-sperm-specific,embryo-nourishing ***,thesefindings provide valuable insights into the intricate substrate recognition and transport mechanisms of the ABA exporter AtABCG25,paving the way for genetic manipulation of ABA homeostasis and plantfitness.

关键词： AtABCG25 abscisic acid ABC transporters cryo-EM structure

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ASF2LN ＂Centrality＂

China International Studies 2013年第5期33卷 119-132页

作者： wang yuzhu

In a watershed moment for regional cooperation, the ASEAN Framework for Regional Comprehensive Economic Partnership（RCEP） was endorsed by leaders at the 19th ASEAN Summit in November 2011. Just as APEC and CAFTA did many years ago, the new ASEAN initiative drew immediate, widespread attention, triggering talks on its future influence on the regional economy. After all, this flee-trade arrangement covers half of the global population and a third of global GDP. People have concerns about the potential influence of the new initiative on the Asia-Pacific region＇s cooperation structure.

关键词：东盟自由贸易区亚太经合组织国内生产总值区域合作区域经济伙伴关系亚太地区分水岭

Propofol Protects Regulatory T Cells, Suppresses Neurotoxic Astrogliosis, and Potentiates Neurological Recovery After Ischemic Stroke

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Neuroscience Bulletin 2021年第5期37卷 725-728页

作者： yuzhu wang Dan Tian Yushang Zhao Mengyao Qu Yuhualei Pan Changwei Wei Yanbing Zhu Anshi Wu Department of Anesthesiology Beijing Chaoyang HospitalCapital Medical UniversityBeijing 100020China Experimental and Translational Research Center Beijing Friendship HospitalCapital Medical UniversityBeijing 100050China

Dear Editor,Emergency intravascular thrombectomy is the best treatment for acute ischemic stroke [1]. However, it is controversial whether the use of general anesthesia during emergency intravascular thrombectomy affe... 详细信息

关键词： anesthesia acute intravascular

Building a Shared Future:Perception and Action

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Contemporary World 2022年第3期 22-25页

作者： wang yuzhu China-ASEAN Institution of Guangxi University APECASEAN Cooperation Center of China Academy of Social Sciences

The development of human society towards globalization is in fact a process towards a community of shared destiny. However, humanity is easily blinded by local, individual and short-term interests, and the interests of the community are therefore neglected. Meanwhile, the constant global crises that challenge the common interests of mankind have cast a spotlight on the fact that humanity shares common destiny.

关键词： neglected Action humanity

Free Trade Area of the Asia-Pacific Promotes Regional Economic Integration

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China Today 2014年第11期63卷 22-26页

作者： wang yuzhu the Center for APEC East Asian Cooperation of the Chinese Academy of Social Sciences

The APEC meetings return to China in 2014 after 13 ***"Shaping the Future through Asia-Pacific Partnership,"the 2014 APEC Economic Leaders'Week will kick off in Beijing on November *** Leaders'Week is expected to generate substantial results based on extensive and in-depth consensus that members have already reached on such aspects as advancing regional economic integration,promoting innovative development,economic reform and growth,and strengthening comprehensive connectivity and infrastructure development.

关键词： In FTAAP

ISM: intra-class similarity mixing for time series augmentation

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Frontiers of Computer Science 2024年第6期18卷 186352-186352页

作者： LIU Pin wang Rui HE Yongqiang wang yuzhu School of Information Engineering China University of Geosciences State Key Lab of Software Development Environment Beihang University

We propose a method based on intra-class similarity mixing, effectively alleviating the inability to improve the generalization of classification models. Its core concept involves improving the feature diversity and expanding the data scale by mixing local regions with similar features. The experimental results show that the proposed method can significantly outperform the similarity-based state-of-the-art methods. In future work, we will explore how to build and quantify the relationship between local similarity and lassification characteristics to further improve performance.

关键词： Mixing

Observation of Collimated Atoms by Light Pressure Force in Absorption Cell

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Chinese Physics Letters 1993年第4期10卷 213-216页

作者： wang yuzhu YE Chao WU Yongsheng wang Xiaojuan ZHOU Shanyu CHENG Yudan MA Longsheng DING Liangen CCAST(Wor1d Laboratory)P.O.Box 8730 Beijing Shanghai Institute of Optics and Fine Mechanics Academia SinicaShanghai 201800 Joint Laboratory for Quantum Optics Shanghai Institute of Optics and Fine MechanicsAcademia SinicaShanghai 201800 East China Normal University Shanghai 200062

Experimental observation of laser cooling and collimation of moving atoms in an absorption cell by light pressure force of an intense standing light wave field is *** hyper fine structure of atomic sodium has been obs... 详细信息

关键词： intense Observation light