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Quantum expander for gravitational-wave observatories

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Light(Science & Applications) 2019年第1期8卷 62-69页

作者： Mikhail Korobko Yiqiu ma.Yanbei Chen Roma. Schnabel Institut für Laserphysik und Zentrum fur Optische Quantentechnologien Universitat HamburgLuruper Chaussee 14922761 HamburgGermany Theoretical Astrophysics 350-17 California Institute of TechnologyPasadenaCA 91125USA

The quantum uncertainty of laser light limits the sensitivity of gravitational-wave *** the past 30 years,techniques for squeezing the quantum uncertainty,as well as for enhancing gravitational-wave signals with optical resonators have been ***,however,have finite linewidths,and the high signal frequencies that are produced during the highly scientifically interesting ring-down of astrophysical compact-binary mergers still cannot be ***,we propose a purely optical approach for expanding the detection *** uses quantum uncertainty squeezing inside one of the optical resonators,compensating for the finite resonators’linewidths while keeping the low-frequency sensitivity *** quantum expander is intended to enhance the sensitivity of future gravitational-wave detectors,and we suggest the use of this new tool in other cavity-enhanced metrological experiments.

关键词： wave quantum unchanged

Trace element geochemistry during chemical weathering——As exemplified by the weathered crust of granite, Longnan, Jiangxi

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Chinese Science Bulletin 1999年第24期44卷 2260-2263页

作者： Yingjun ma.Congqiang Liu Chinese Acad Sci Inst Geochem State Key Lab Environm Geochem Guiyang 550002 Peoples R China

The granite weathering in Longnan, Jiangxi, is represented by mineralogical changes of feldspars · montmorillonite, illite · kaolinite, halloysite · bauxite, with Na, ca, Si, P, V, U and Sr being in a mobile state while Ti, Al, Fe, Sc, Th, Zr and Hf rema.ning relatively conservative. With the exception of Zr/Hf, Nb/Ta, Th/Sc, Zr/Nd and Sm/Nb, changes are notable in ratios between most of the trace elements. Re-distribution of REE and Y has

关键词： granite weathering crust chemical weathering trace elements Longnan Jiangxi.

Design and dynamic analysis of single-axis integrated inertia measurement device

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仪器仪表学报 2007年第9期28卷 1558-1563页

作者： ma.Zongmin Shi Yunbo meng Meiyu Liu Jun National Key Lab for Electronic Measurement and Technology North University of China Taiyuan 030051 China Key Lab of lnstrumentation science ＆ Dynamic Measurement（North University of China） Ministry of EducationTaiyuan 030051 China Department of Mechanical Engineering University of california Berkeley Berkeley CA 94720 USA

The structure and measurement theory of a single-axis integrated inertia measurement device are discussed in this *** acceleration and angle velocity can be detected by the proposed sensor at the same *** ki- netic model of the device is also *** addition,the signal generation of the single-axis integrated inertia measurement device is analyzed and *** results of the model are consistent with simulation result.

关键词：设计动力学模型单轴整合惯性测量仪器仿真分析

Energy conversion ma.erials need phonons

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The Innovation 2024年第6期5卷 25-26页

作者： Dandan ma.Yuzhe ma.Jinfu ma.Qun Yang Claudia Felser Guowei Li Ningbo Institute of ma.erials Technology and Engineering Chinese Academy of SciencesNingbo 315201China School of ma.erials Science and Engineering North Minzu UniversityYinchuan 750021China University of Chinese Academy of Sciences 19 A Yuquan RoadShijingshan DistrictBeijing 100049China College of Letters and Science University of CaliforniaLos AngelesLos AngelesCA 90095USA ma. Planck Institute for Chemical Physics of Solids 01187 DresdenGermany

Phonons,as bosonic particles unaffected by the Pauli exclusion principle or the Fermi level,are fundamental to understanding the physical properties of solid *** interactions with electrons and the crystal lattices si... 详细信息

关键词： ma.erials processes Fermi

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蛇形微通道内泄漏流特性

化工进展 2021年第11期40卷 5973-5980页

作者：梁倩卿卜亿峰门卓武马学虎北京低碳清洁能源研究院北京102209 大连理工大学化学工程研究所辽宁大连116024

微流体系统通常具备极大的比表面积、易于控制等优势,在气-液相传质、传热、反应等方面具有良好的应用前景。本文考察了6个气液相体系在矩形截面蛇形微通道中的气液两相泰勒流流动情况以及气泡和液弹的动态行为,以气泡截面形状的几何模... 详细信息

微流体系统通常具备极大的比表面积、易于控制等优势,在气-液相传质、传热、反应等方面具有良好的应用前景。本文考察了6个气液相体系在矩形截面蛇形微通道中的气液两相泰勒流流动情况以及气泡和液弹的动态行为,以气泡截面形状的几何模型为基础,得到了微通道中净泄漏流的量化方程。同时发现在较大的操作区间内,蛇形微通道对泄漏流的可控性优于直形微通道。并且详细分析了不同气液相流量、液相物性(表面张力和黏度)和气泡长度对蛇形微通道主通道净泄漏流的具体影响。

关键词：净泄漏流气液相流量液相物性气泡长度预测

Furan Donor for NIR-II Molecular Fluorophores with Enhanced Bioima.ing Performa.ce

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Research 2023年第3期6卷 377-387页

作者： Chunchen Liu mengfei Li Huilong ma.Zhubin Hu Xinyuan Wang Rui ma.Yingying Jiang Haitao Sun Shoujun Zhu Yongye Liang Department of ma.erials Science and Engineering Shenzhen Key Laboratory of Printed Organic ElectronicsSouthern University of Science and TechnologyShenzhen 518055China State Key Laboratory of Supramolecular Structure and ma.erials College of ChemistryJilin UniversityChangchun 130012China State Key Laboratory of Precision Spectroscopy School of Physics and Electronic ScienceEast China Normal UniversityShanghai 200241China Department of Chemistry and Bio-X Stanford UniversityStanfordCA 94305USA Collaborative Innovation Center of Extreme Optics Shanxi UniversityTaiyuanShanxi 030006China

The second near-infrared(NIR-II,1,000 to 1,700 nm)molecular fluorophores containing donor–acceptor–donor conjugated backbone have attracted substantial attention due to their outstanding advantages,such as stable emission and facilely tuned photophysical ***,it is still challenging for them to simultaneously achieve high brightness and red-shifted absorption and ***,furan is adopted as the D unit to construct NIR-II fluorophores,demonstrating red shift of absorption,enhanced absorption coefficient,and fluorescent quantum yield when compared with the generally used thiophene *** high brightness and desirable pharma.okinetics of the optimized fluorophore,IR-FFCHP,endows improved performa.ce for angiography and tumor-targeting ***,dual-NIR-II ima.ing of tumor and sentinel lymph nodes(LNs)has been achieved with IR-FFCHP and PbS/CdS quantum dots,enabling the in vivo ima.ing navigated LN surgery in tumor-bearing *** work demonstrates the potential of furan for constructing bright NIR-II fluorophores for biological ima.ing.

关键词： properties donor absorption

Spatial differentiation in stable isotope compositions of surface waters and its environmental significance in the Issyk-Kul Lake region of Central Asia

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Journal of Mountain Science 2018年第2期15卷 254-263页

作者： ma.Long JILILI Abuduwaili LI Yao-ming State Key Laboratory of Desert and Oasis Ecology Xinjiang Institute of Ecology and Geography Chinese Academy of Sciences Urumqi 830011 China caS Research Center for Ecology and Environment of Central Asia Urumqi 830011 China

Stable isotope values of oxygen （180） and hydrogen （2H） of surface waters were used to study the origin and environmental significanees in the Issyk-Kul basin of Kyrgyzstan in Central Asia, which is the most important intermountain basin in the modern Tien Shan orogen. This study is the first analysis of hydrochemical spatial differentiation in the stable isotopes of surface waters in this watershed. 75 samples were collected from rivers, springs, lakes, rain and snow during the rainy season in July and August of 2o16. Stable isotopes of 180 and 2H were studied for all samples, and cation ratios （Sr/ca and Mg/ca） were also determined for lake water samples. Stable isotope values from precipitation scattered around the Local Meteoric Water Line （determined from Urumqi Station of the global network of isotopes in precipitation （GNIP））, together with values of the Deuterium excess parameter （d） from 15.3‰ to 30.5‰, with an average of 19.8‰, indicating that the moisture sources are prima.ily from regions with low relative humidity. The 8180 and 52H values were significantly different between the river and lake samples, indicating that regional evaporation caused the isotopic enrichment of lake water. Geospatial autocorrelation, measured by Moran＇s I coefficient, indicated weak spatial autocorrelation within stable isotopes of oxygen and hydrogen in the surface waters of the studied area, which is prima.ily an effect of clima.e during the water chemistry evolution. The cation ratios Sr/ca and Mg/ca in lake water samples were not correlated with the concentration of total dissolved solids, but did show correlation with stable isotopic values, which is significant for paleoenvironmental reconstruction.

关键词： Spatial differentiation Stable isotope Moisture Sources Geospatial autocorrelation IssykKul Lake Central Asia

Enhanced removal of organics by perma.ganate preoxidation using tannic acid as a model compound-Role of in situ formed ma.ganese dioxide

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Journal of Environmental Sciences 2009年第7期21卷 872-876页

作者： ZHANG Lizhu ma.Jun LI Xin WANG Shutao School of Science Harbin Institute of Technology Harbin 150090 China School of Municipal and Environmental Engineering Harbin Institute of Technology Harbin 150090 China

The effect of perma.ganate preoxidation on organic ma.ter removal during the coagulation with aluminum chloride was investigated using tannic acid as a model compound. Results showed that a sma.l amount of KMnO4 （0.75 mg/L） increased the removal efficiency of tannic acid up to 20%, as compared to the process of coagulation by aluminum chloride alone. The key factor enhancing the removal efficiency of tannic acid in preoxidation process was the in situ forma.ion of a reductant ma.ganese dioxide. The complexation model was used to describe the reaction between MnO2 and tannic acid. Under weak pH condition, tannic acid was difficult to be adsorbed by MnO2 due to the static electrical repulsive forces. The presence of ca2＋ served as a bridge to hold the negative charged MnO2 and tannic acid together, which could be a crucial factor influencing tannic acid adsorption by in-situ ma.ganese dioxide.

关键词： KMnO4 MnO2 adsorption coagulation oxidation tannic acid

Baishideng’s Reference Citation Analysis database announces the first Journal Article Influence Index of 104 core journals and a list of high-quality academic journals in orthopedics

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World Journal of Orthopedics 2022年第10期13卷 891-902页

作者： Jin-Lei Wang Yu-Jie ma.Li ma.Na ma.Diao-Mei Guo Lian-Sheng ma Baishideng Publishing Group Inc PleasantonCA 94566United States

After three rounds of rigorous evaluation of core journals in orthopedics conducted by the Reference Citation Analysis(Rca)editorial team of Baishideng Publishing Group(Baishideng),the Rca database of Baishideng officially released the 2022 Journal Article Influence Index(2022 JAII)of 104 core journals and a list of high-quality academic journals in orthopedics,for the first time on August 9,*** list of 104 core journals can be found at:https://***/*** them,the highest 2022 JAII is 55.015 and the lowest is *** article introduces the 21 high-quality academic journals and describes the calculation method for the 2022 JAII,the evaluation process,and the inclusion principles for journals in the *** steps are the underpinning of the Rca’s empirical journal academic evaluation service by which the digital platform addresses the needs of authors to select reliable journals for submission,readers to select high-quality literature for reading,and editors to track their own journal citation *** such,the Rca core journal list will serve as a useful Find-a-Journal *** interested party is welcome to use this journal list and recommend it to their peers.

关键词： Reference Citation Analysis Journal Article Influence Index Orthopedics Journal list Find a journal Announcement