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Determination and Correlation of 1-Octanol/Water Partition Coefficients for Six Quinolones from 293.15 K to 323.15 K

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Chemical Research in Chinese Universities 2010年第4期26卷 636-639页

作者： ZHANG Cong-liang WANG yan College of Chemical Engineering Zhengzhou University Zhengzhou 450002 P. R. China

A shake-flask method was used to determine 1-octanol/water partition coefficients of ofloxacin, norfloxacin, lomefloxacin, ciprofloxacin, pefloxacin and pipemidic acid from 293.15 K to 323.15 K. The results show that 1-octanol/water partition coefficient of each quinolone increased with the increase of temperature. Based on the fluid phase equilibrium theory, the thermodynamic relationship of 1-octanol/water partition coefficient depending on the temperature was proposed, and the changes of enthalpy, entropy, and Gibbs free energy for quinolones partitioning in 1-octanol/water were determined, respectively. Quinolones molecules partitioning in 1-octanol/water was mainly an entropy driving process, during which the order degree of system decreased. The temperature effects of 1-octanol/water partition coefficient were investigated. The results show that its magnitude is the same as the values in the literature.

关键词： Quinolone 1-Octanol/water partition coefficient Thermodynamics

基于规则引擎的煤矿透明地质物联网接入系统开发研究

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煤炭技术 2025年第1期44卷 234-237页

作者：邓良晏俊生李鹏中煤科工西安研究院(集团)有限公司西安710077 西安煤科透明地质科技有限公司西安712000 煤炭科学研究总院北京100013

随着我国煤矿智能化建设的快速推进,以及海量煤矿地质相关数据的不断积累,统一、安全、智能、高效的煤矿透明地质平台建设已经成为了重要研发方向。以物联网,时序存储,规则引擎等技术为基础,分析了海量多源异构煤矿透明地质数据的接入... 详细信息

随着我国煤矿智能化建设的快速推进,以及海量煤矿地质相关数据的不断积累,统一、安全、智能、高效的煤矿透明地质平台建设已经成为了重要研发方向。以物联网,时序存储,规则引擎等技术为基础,分析了海量多源异构煤矿透明地质数据的接入、管理、存储,研发了煤矿透明地质物联网接入系统。设计了异构传感器设备动态数据的协议接入、存储、管理及推送服务。系统的研发有效降低了多源异构协议数据的接入与管理成本,提高了煤矿系统实时数据的可用性、可扩展性、可访问性。在察哈素煤矿透明地质保障系统建设中,系统高效完善了系统动态数据接入、存储和分析,将系统数据接入成本从5人/月降低至0.5人/月,极大提升了系统运行效率,缩减了系统运维成本,达到预期建设效果。

关键词：物联网时序数据透明地质规则引擎多源异构数据

Experimental study of vertical and batter pile groups in saturated sand using a centrifuge shaking table

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Earthquake Engineering and Engineering Vibration 2022年第1期21卷 23-36页

作者： Zhang Jian Li Yurun yan Zhixiao Huang Da Rong Xian liang yan School of Civil and Transportation Engineering Hebei University of TechnologyTianjin 300401China Campus Construction and Management Hebei University of TechnologyTianjin 300401China

To study the dynamic response of vertical and batter pile groups in saturated sand,dynamic tests of these pile groups in saturated sand were carried out using the ZJU400 geotechnical centrifuge at Zhejiang *** following results were obtained.(1)As the motion intensity increased,the peak acceleration in soil layers at different depths significantly decreased,indicating that the soil stiffness was significantly reduced.(2)During the motion process,the instantaneous bending moment of the vertical and batter pile groups at different depths changed continuously,which had a strong relationship with the saturated sand *** the process of sand liquefaction,the residual bending moment generated by the batter pile was more obvious than that of the vertical pile.(3)With the liquefaction of the saturated sand,the distribution of the maximum bending moment of the vertical pile group changed,and the bending moment near the pile cap of the vertical and batter pile groups was always large.(4)In certain cases,the horizontal acceleration and dynamic displacement of the vertical pile cap were *** the motion intensity was large,residual displacement of the batter pile cap occurred.

关键词： centrifuge shaking table vertical and batter pile group saturated sand liquefaction dynamic response

Supervised Feature Learning for Offline Writer Identification Using VLAD and Double Power Normalization

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Computers, Materials & Continua 2023年第7期76卷 279-293页

作者： Dawei liang Meng Wu yan Hu College of Computer Nanjing University of Posts and TelecommunicationsNanjing210023China Department of Computer Information and Cyber Security Jiangsu Police InstituteNanjing210031China JinCheng College Nanjing University of Aeronautics and AstronauticsNanjing211156China Engineering Research Center of Electronic Data Forensics Analysis Nanjing210031Jiangsu ProvinceChina

As an indispensable part of identity authentication,offline writer identification plays a notable role in biology,forensics,and historical document ***,identifying handwriting efficiently,stably,and quickly is still challenging due to the method of extracting and processing handwriting *** this paper,we propose an efficient system to identify writers through handwritten images,which integrates local and global features from similar handwritten *** local features are modeled by effective aggregate processing,and global features are extracted through transfer ***,the proposed system employs a pre-trained Residual Network to mine the relationship between large image sets and specific handwritten images,while the vector of locally aggregated descriptors with double power normalization is employed in aggregating local and global ***,handwritten image segmentation,preprocessing,enhancement,optimization of neural network architecture,and normalization for local and global features are exploited,significantly improving system *** proposed system is evaluated on Computer Vision Lab(CVL)datasets and the International Conference on Document Analysis and Recognition(ICDAR)2013 *** results show that it represents good generalizability and achieves state-of-the-art ***,the system performs better when training complete handwriting patches with the normalization *** experimental result indicates that it’s significant to segment handwriting reasonably while dealing with handwriting overlap,which reduces visual burstiness.

关键词： Writer identification power normalization vector of locally aggregated descriptors feature extraction

Dyadic Bivariate Wavelet Multipliers in L^2（R@2）

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Acta Mathematica Sinica,English Series 2011年第8期27卷 1489-1500页

作者： Zhong yan LI Xian liang SHI College of Mathematics and Computer' Science Hu'nan Normal University Changsha 410081 P. R. China Department of Mathematics and Physics North China Electric Power University Beijing 102206 P. R. China

The single 2 dilation wavelet multipliers in one-dimensional case and single A-dilation （where A is any expansive matrix with integer entries and [detA[ = 2） wavelet multipliers in twodimen- sional case were completely characterized by Wutam Consortium （1998） and Li Z., et al. （2010）. But there exist no results on multivariate wavelet multipliers corresponding to integer expansive dilation matrix with the absolute value of determinant not 2 in L^2（R^2）. In this paper, we choose 2I2 = （02 20 ） as the dilation matrix and consider the 212-dilation multivariate wavelet ψ = {ψ1, ψ2, ψ3 } （which is called a dyadic bivariate wavelet） multipliers. Here we call a measurable function family f ={fl, f2, f3} a dyadic bivariate wavelet multiplier if ψ1 = （F^-1（f1ψ1）,F^-1（f2ψ2）, F-l（f3ψ3）} is a dyadic bivariate wavelet for any dyadic bivariate wavelet ψ = {ψ1, ψ2, ψ3}, where f and F^- 1 denote the Fourier transform and the inverse transform of function f respectively. We study dyadic bivariate wavelet multipliers, and give some conditions for dyadic bivariate wavelet multipliers. We also give concrete forms of linear phases of dyadic MRA bivariate wavelets.

关键词： Dyadic bivariate wavelet dyadic bivariate wavelet multiplier dyadic MRA bivariate wavelet dyadic low pass filter Haar type dyadic wavelet

Generalized Gr?tzsch ring function and generalized elliptic integrals

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Applied Mathematics(A Journal of Chinese Universities) 2016年第4期31卷 458-468页

作者： MA Xiao-yan QIU Song-liang TU Guo-yan Department of Mathematics Zhejiang Sci-Tech University Hangzhou 310018 China Tongji Zhejiang College Jiaxing 413000 China

Abstract. In this paper, we study the quotient of hypergeometric functions μα （r） in the theory of Ramanujan＇s generalized modular equation for α ∈（0, 1/2]. Several new inequalities are given for this and rela... 详细信息

关键词： Gaussian hypergeometric function generalized GrStzsch ring function generalized elliptic func-tion.

On Parseval super-frame wavelets

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Applied Mathematics(A Journal of Chinese Universities) 2012年第2期27卷 192-204页

作者： LI Zhong-yan SHI Xian-liang College of Mathematics and Computer Science Key Laboratory of High Performance Computing and Stochastic Information Processing(HPCSIP)(Ministry of Education of China)Hunan Normal UniversityChangsha 410081China Department of Mathematics and Physics North China Electric Power UniversityBeijing 102206China

Suppose that η1,...,η_n are measurable functions in L2（R）.We call the n-tuple（η1,...,ηn） a Parseval super frame wavelet of length n if {2^（k/2） η1（2~kt-l） ⊕···⊕2^（k/2） ηn（2kt-l）：k,l∈Z} is a Parseval frame for L2（R）⊕*** high dimensional case,there exists a similar notion of Parseval super frame wavelet with some expansive dilation *** this paper,we will study the Parseval super frame wavelets of length n,and will focus on the path-connectedness of the set of all s-elementary Parseval super frame wavelets in one-dimensional and high dimensional *** will prove the corresponding path-connectedness theorems.

关键词： Parseval frame wavelet super frame s-elementary Parseval super frame wavelet.

A New Characterization of p-Smoothable Banach Spaces

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Acta Mathematica Sinica,English Series 2011年第5期27卷 1005-1010页

作者： yan Bo REN You liang HOU School of Mathematics and Statistics He 'nan University of Science and Technology Luoyang 471003 P. R. China School of Mathematics and Statistics Wuhan University Wuhan 430072 P. R. China

In this paper an atomic decomposition theorem for Banach-space-valued weak Hardy regular martingale space wpHα^s（X） is given. As an application, p-smoothable Banach spaces are characterized in terms of bounded sublinear operators defined on Banach-space-valued weak Hardy regular martingale space wpHa^s（X）. Keywords Martingale, weak Hardy space, atomic decomposition, p-smoothable Banach space

关键词： Martingale weak Hardy space atomic decomposition p-smoothable Banach space

Dendrobium sonia polysaccharide regulates immunity and restores the dysbiosis of the gut microbiota of the cyclophosphamide-induced immunosuppressed mice

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Chinese Journal of Natural Medicines 2019年第8期17卷 600-607页

作者： LIU Wei yan Ran ZHANG liang Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica School of Pharmacy Nanjing University of Chinese Medicine Nanjing 210023 China Affiliated Hospital of Nanjing University of Chinese Medicine Jiangsu Province Hospital of Chinese Medicine Nanjing 210004 China College of Biotechnology and Pharmaceutical Engineering Nanjing University of Technology Nanjing 211816 China

To recognize the potential medicinal value of the Dendrobium sonia, polysaccharide(DSP) was extracted, purified, and investigated for its immunomodulatory activity. In vitro, DSP was shown to enhance the viability(MTT assay) and phagocytosis of macrophages. In cyclophosphamide-induced immunosuppressed mice, DSP increased serum levels of TNF-α, IL-6 and IFN-γ(enzyme-linked immunosorbent assay, ELISA), and ameliorated the imbalance of the community of gut microbiota as detected by 16 S ribosomal RNA gene sequencing. These results suggest that DSP might be beneficial for patients under immunosuppressed conditions.

关键词： Dendrobium sonia Polysaccharides Immunomodulatory activity Gut microbiota