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Influences of LaCl3 on the mineral phase transformation during osteoblast mineralization in vitro

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Journal of Environmental Sciences 2017年第1期29卷 88-96页

作者： caixia yu Jiao Gong Fu-ling Yin Jian Huang Tian-lan Zhang Kui Wang Department of Chemical Biology School of Pharmaceutical SciencesPeiking University Health Science CenterBeijing 100191China

Rat calvarial osteoblasts were treated with lanthanum chloride（LaCl3） to explore its effect on the mineral crystalline phase during the process of osteoblast calcification in *** results confirmed that La was readily deposited in the mineral component of the *** high-resolution transmission electron microscopy and Fourier transform infrared microspectroscopy techniques,we demonstrated that features comparable to dicalcium phosphate dihydrate（DCPD） and octacalcium phosphate,and hydroxyapatite（HAP） were detected in the mineral phases in ***,LaCl3 treatment retarded conversion from DCPD-like phase into HAP during *** addition,La was introduced in DCPD powder during wet chemical *** compared with that of La-free DCPD,the dissolution rate of La-incorporated DCPD was lower,thereby leading to a delayed DCPD-to-HAP phase ***,it can be concluded that LaCl3 treatment influences the kinetics of inorganic phase transition by decreasing the dissolution rate of DCPD.

关键词： Lanthanum Dicalcium phosphate dehydrate Transformation Osteoblasts Mineralization

Characteristics of the water-soluble components of aerosol particles in Hefei,China

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Journal of Environmental Sciences 2016年第4期28卷 32-40页

作者： Xue-liang Deng Chun-e Shi Bi-wen Wu yuan-jian Yang Qi Jin Hong-lei Wang Song Zhu caixia yu Anhui Institute of Meteorology Key Laboratory of Atmospheric Science and Satellite Remote Sensing Hefei 230031 China Anhui Weather Modification Hefei 230031 China Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration Nanjing University of Information Science and Technology Nanjing 210044 China Hefei Meteorological Bureau Hefei 230041 China

Size-classified daily aerosol mass concentrations and concentrations of water-soluble inorganic ions were measured in Hefei,China,in four representative months between September 2012 and August *** annual average mass concentration of 169.09μg/m^3 for total suspended particulate（TSP）was measured using an Andersen Mark-II cascade *** seasonal average mass concentration was highest in winter（234.73μg/m^3）and lowest in summer（91.71μg/m^3）.Water-soluble ions accounted for 59.49%,32.90%,48.62%and 37.08%of the aerosol mass concentration in winter,spring,summer,and fall,respectively,which indicated that ionic species were the primary constituents of the atmospheric *** four most abundant ions were NO3^-,SO4^2-,Ca^2＋ and NH4^＋.With the exception of Ca^2＋,the mass concentrations of water-soluble ions were in an intermediate range compared with the levels for other Chinese ***,nitrate,and ammonium were the dominant fine-particle species,which were bimodally distributed in spring,summer and fall;however,the size distribution became unimodal in winter,with a peak at 1.1–2.1μ*** Ca^2＋ peak occurred at approximately 4.7–5.8μm in all *** cation to anion ratio was close to 1.4,which suggested that the aerosol particles were alkalescent in *** average NO3^-/SO4^2-mass ratio was 1.10 in Hefei,which indicated that mobile source emissions were *** positive correlation coefficients between the concentrations of NH4^＋ and SO4^2-,NH4^＋ and NO3^-,SO4^2-and NO3^-,and Mg^2＋ and Ca^2＋ were also indicated,suggesting that aerosol particles may be present as（NH4）2SO4,NH4HSO4,and NH4NO3.

关键词： Aerosol Water-soluble ions Hefei Size distribution

Algorithm for Harmonic Tidal Analysis along T/P Tracks： Taking Differences of Observed Sea Surface Heights at Adjacent Points as Observations

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Geo-Spatial Information Science 2008年第1期11卷 17-20页

作者： XU Jun BAO Jingyang LIU Yanchun yu caixia Department of Hydrography and Cartography Dalian Naval Academy 667 Jiefang Road Dalian 116018 China 不详

An algorithm （differential mode） is presented for the improvement of harmonic tidal analysis along T/P tracks, in which the differences between the observed sea surface heights at adjacent points are taken as observations. Also, the observation equations are constrained with the results of the crossover analysis; the parameter estimations are performed at 0.1° latitude intervals by the least squares. Cycle 10 to 330 T/P altimeter data covering the China Sea and the Northwest Pacific Ocean （2°-50° N,105°-150° E） are adopted for a refined along-track harmonic tidal analysis, and harmonic constants of 12 constituents in 8 474 points are obtained, which indicates that the algorithm can efficiently remove non-tidal effects in the altimeter observations, and improve the precision of tide parameters. Moreover, parameters along altimetry tracks represent a smoother distribution than those obtained by traditional algorithms. The root mean squares of the fitting errors between the tidal height model and the observations reduce from 11 cm to 1.3 cm.

关键词： satellite altimetry T/P harmonic tidal analysis differential mode

Genomic Perspectives on the Emerging SARS-CoV-2 Omicron Variant

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Genomics, Proteomics & Bioinformatics 2022年第1期20卷 60-69页

作者： Wentai Ma Jing Yang Haoyi Fu Chao Su caixia yu Qihui Wang Ana Tereza Ribeiro de Vasconcelos Georgii A.Bazykin Yiming Bao Mingkun Li CAS Key Laboratory of Genomic and Precision Medicine Beijing Institute of GenomicsChinese Academy of Sciences and China National Center for BioinformationBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China CAS Key Laboratory of Pathogenic Microbiology and Immunology Institute of MicrobiologyChinese Academy of SciencesBeijing 100101China National Genomics Data Center Beijing Institute of GenomicsChinese Academy of Sciences and China National Center for BioinformationBeijing 100101China Laboratorio de Bioinformatica Laboratorio Nacional de Computacao CientıficaPetropolis 25651-075Brazil Skolkovo Institute of Science and Technology Moscow 121205Russia Kharkevich Institute for Information Transmission Problems of the Russian Academy of Sciences Moscow 127051Russia Center for Excellence in Animal Evolution and Genetics Chinese Academy of SciencesKunming 650201China

A new variant of concern for SARS-CoV-2,Omicron(B.1.1.529),was designated by the World Health Organization on November 26,*** study analyzed the viral genome sequencing data of 108 samples collected from patients infected with ***,we found that the enrichment efficiency of viral nucleic acids was reduced due to mutations in the region where the primers anneal ***,the Omicron variant possesses an excessive number of mutations compared to other variants circulating at the same time(median:62 vs.45),especially in the Spike *** in the Spike gene confer alterations in 32 amino acid residues,more than those observed in other SARS-CoV-2 ***,a large number of nonsynonymous mutations occur in the codons for the amino acid residues located on the surface of the Spike protein,which could potentially affect the replication,infectivity,and antigenicity of ***,there are 53 mutations between the Omicron variant and its closest sequences available in public *** of these mutations were rarely observed in public databases and had a low mutation *** addition,the linkage disequilibrium between these mutations was low,with a limited number of mutations concurrently observed in the same genome,suggesting that the Omicron variant would be in a different evolutionary branch from the currently prevalent *** improve our ability to detect and track the source of new variants rapidly,it is imperative to further strengthen genomic surveillance and data sharing globally in a timely manner.

关键词： Omicron Genomics Mutation Variant of concern SARS-CoV-2

Influence of Tide Models on the Use of Altimetry Data to Research Sea Level Anomaly

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Geo-Spatial Information Science 2007年第2期10卷 100-104页

作者： XU Jun BAO Jingyang LIU Yanchun yu caixia Department of Hydrography and Cartography Dalian Naval Academy 667 Jiefang Road Dalian 116018 China

A tide model （named DN1.0）, which contains 12 principal constituents over China seas and the Northwest Pacific is estimated by along-track harmonic analysis with TOPEX/Poseidon altimetry data taken from 1993 to 2002. CSR3.0, FES95.2 and DNI.0 are used respectively to detide the data for the time series of sea level anomaly （SLA） in the Yellow Sea, East China Sea, South China Sea and Northwest Pacific. The SLA curves and the power spectral density show that the major components that exist in SLA in China seas arise from the error of the tide models.

关键词： satellite altimetry sea level anomaly tide model tidal aliasing

Double parameterized regularization inversion method for migration velocity analysis in transversely isotropic media with a vertical symmetry axis

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Double parameterized regularization inversion method for mig...

中国科学院地质与地球物理研究所2014年度（第14届）学术年会

作者： caixia yu Yanfei Wang Jingtao Zhao Zhenli Wang Key Laboratory of Petroleum Resources Research Institute of Geology and GeophysicsChinese Academy of Sciences University of Chinese Academy of Sciences Research Institute of Petroleum Exploration & Development PetroChina

Simultaneous estimation of velocity gradients and anisotropic parameters from seismic reflection data is one of the main challenges in transversely isotropic media with a vertical symmetry axis migration velocity *** migration velocity analysis,we usually construct the objective function using the l norm along with a linear conjugate gradient scheme to solve the inversion ***,for seismic data this inversion scheme is not stable and may not converge in finite *** order to ensure the uniform convergence of parameter inversion and improve the efficiency of migration velocity analysis,this paper develops a double parameterized regularization model and gives the corresponding *** model is based on the combination of the l norm and the non-smooth l *** solving such an inversion problem,the quasi-Newton method is utilized to make the iterative process stable,which can ensure the positive definiteness of the Hessian *** simulation indicates that this method allows fast convergence to the true model and simultaneously generates inversion results with a higher ***,our proposed method is very promising for practical migration velocity analysis in anisotropic media.

关键词： VTI media Migration velocity analysis Double parameterized regularization Quasi-Newton method.

来源： cnki会议评论

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基于需求引导的企业信息资源市场推广研究

情报杂志 2012年第2期31卷 183-188,173页

作者：余彩霞杭州电子科技大学管理学院杭州310018

信息环境下企业信息资源市场推广要以用户需求为引导。信息用户的企业信息资源市场需求,在需求的状态、需求的内容和需求的过程方面都呈现出许多新特征。针对这些特征,构建了基于需求引导的企业信息资源市场推广模型,提出了企业信息资... 详细信息

信息环境下企业信息资源市场推广要以用户需求为引导。信息用户的企业信息资源市场需求,在需求的状态、需求的内容和需求的过程方面都呈现出许多新特征。针对这些特征,构建了基于需求引导的企业信息资源市场推广模型,提出了企业信息资源市场推广实施应在培育企业信息资源市场需求、发展信息中介方、实施差别定价策略和集成管理等方面体现以用户需求为引导。

关键词：信息资源推广信息资源管理市场推广用户需求

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海洋空间信息基准技术进展与发展方向

测绘学报 2017年第10期46卷 1778-1785页

作者：暴景阳许军于彩霞海军大连舰艇学院海洋测绘系辽宁大连116018 中国测绘科学研究院北京100830

简要分析了海洋空间信息基准的基本发展历程和当前的技术状态,梳理和评述了近年来关于验潮站垂直基准确定方法的改进与完善、验潮站控制下的垂直基准的实现形式、长期验潮站在维持垂直基准方面的作用、海洋潮汐模型构建、特征潮面模型... 详细信息

简要分析了海洋空间信息基准的基本发展历程和当前的技术状态,梳理和评述了近年来关于验潮站垂直基准确定方法的改进与完善、验潮站控制下的垂直基准的实现形式、长期验潮站在维持垂直基准方面的作用、海洋潮汐模型构建、特征潮面模型构建与转换等有关海洋垂直基准及与其相关的海洋潮汐研究的主要进展,预测了海洋空间信息基准在海上高精度位置服务、垂直基准面及转换模型精化、空间基准应用等重点发展方向。

关键词：海洋空间信息基准海洋潮汐模型进展发展方向

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企业信息能力评价研究

中国图书馆学报 2006年第1期32卷 39-44页

作者：余彩霞况能富武汉大学信息管理学院2004级华中师范大学信息管理系

对企业信息能力进行评价,首先要作好评价方法的选择。评价指标可从信息人才、信息机构与设施、信息活动能力,以及内外环境信息源四个方面考虑设置。应从优化处理评价指标、确定各指标权重、构造判断矩阵和模糊综合评价等方面着手构建评... 详细信息

对企业信息能力进行评价,首先要作好评价方法的选择。评价指标可从信息人才、信息机构与设施、信息活动能力,以及内外环境信息源四个方面考虑设置。应从优化处理评价指标、确定各指标权重、构造判断矩阵和模糊综合评价等方面着手构建评价体系。表1。参考文献10。

关键词：企业信息能力评价研究指标体系评价方法模糊评价