检索结果-南通市图书馆

Erwinia carotovora ssp. carotovora Infection Induced ＂Defense Lignin＂ Accumulation and Lignin Biosynthetic Gene Expression in Chinese Cabbage （Brassica rapa L. ssp. pekinensis）

引用

Journal of Integrative Plant Biology 2007年第7期49卷 993-1002页

作者： song-he Zhang Qing Yang Rong-Cai Ma College of Life Sciences Nanjing Agricultural University Nanjing 210095 China Beijing AgroBiotechnology Research Center Beijing Academy of Agriculture and Forestry Sciences Beijing 100097 China

Erwinia carotovora subsp, carotovora （Ecc） infects and causes soft rot disease in hundreds of crop species including vegetables, flowers and fruits. Lignin biosynthesis has been implicated in defensive reactions to injury and pathogen infection in plants. In this work, variations of lignin content and gene expression in the molecular interaction between Chinese cabbage and Ecc were investigated. H2O2 accumulation and peroxidase activity were detected by 3, 3＇- Dimethoxybenzidine staining at mocked and Ecc-inoculated sites of Chinese cabbage leafstalks. Klason lignin content in inoculated plants increased by about 7.84%, 40.37%, and 43.13% more than that of the mocked site at 12, 24 and 72 h after inoculation, respectively. Gas chromatography detected more p-coumaryl （H） and less coniferyl （G） and sinapyl （S） monolignins in leafstalks of Chinese cabbage. All three monomers increased in Ecc-infected leafstalks, and the Ecc-induced ＂defense lignin＂ were composed of more G and H monolignins, and less S monolignin. After searching the expressed sequence tags （EST） data of Chinese cabbage, 12 genes putatively encoding enzymes involved in lignin biosynthesis were selected to study their expression. All of these genes could be induced by mock inoculation and Ecc infection, while the gene expression lasted for several more hours in the infected samples than in mocked and untreated plants. Our results indicated that ＂defense lignin＂ was different from the developmental lignin in composition; G and S monolignins were significantly induced in plants in response to the soft rot Ecc; thus, lignin biosynthesis was differentially regulated and played a role in plant response to the soft rot Ecc.

关键词： Chinese cabbage Erwinia carotovora ssp. carotovora expressed sequence tags gene expression lignin.

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Real-time Tire Parameters Observer for Vehicle Dynamics Stability Control

引用

Chinese Journal of Mechanical Engineering 2010年第5期23卷 620-626页

作者： LI Liang LI Hongzhi ZHANG Xiaolong he Lin song Jian State Key Laboratory of Automotive Safety and Energy Tsinghua University Beijing 100084 China

The performance of the vehicle dynamics stability control system（DSC） is dominated by the accurate estimation of tire forces in *** characteristics of tire forces are determined by tire dynamic states and parameters,which vary in an obviously large scope along with different working ***,there have been many methods based on the nonlinear observer to estimate the tire force and dynamic parameters,but they were only used in off-line analysis because of the computation complexity and the dynamics differences of four tires in the steering maneuver conditions were not considered *** paper develops a novel algorithm to observe tire parameters in real-time controller for *** algorithm is based on the sensor-fusion technology with the signals of DSC sensors,and the tire parameters are estimated during a set of maneuver *** calibrated tire parameters in the control cycle are treated as the elementary states for vehicle dynamics observation,in which the errors between the calculated and the measured vehicle dynamics are used as the correcting factors for the tire parameter observing *** test process with a given acceleration following a straight line is used to validate the estimation method of the longitudinal stiffness;while the test process with a given steering angle is used to validate the estimated value of the cornering *** ground test result shows that the proposed algorithm can estimate the tire stiffness accurately with an acceptable computation cost for real-time controller only using DSC sensor *** proposed algorithm can be an efficient algorithm for estimating the tire dynamic parameters in vehicle dynamics stability control system,and can be used to improve the robustness of the DSC controller.

关键词： tire longitudinal stiffness cornering stiffness vehicle dynamics stability

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A Multi-Symplectic Compact Method for the Two-Component Camassa-Holm Equation with Singular Solutions

引用

Chinese Physics Letters 2017年第9期34卷 8-12页

作者： Xiang Li Xu Qian Bo-Ya Zhang song-he song College of Science and State Key Laboratory of High Performance Computing National University of Defense Technology Changsha 410073 Academy of Ocean Science and Engineering National University of Defense Technology Changsha 410073

The two-component Camassa–Holm equation includes many intriguing phenomena. We propose a multi-symplectic compact method to solve the two-component Camassa–Holm equation. Based on its multi-symplectic formulation, the proposed method is derived by the sixth-order compact finite difference method in spatial discretization and the symplectic implicit midpoint scheme in temporal discretization. Numerical experiments finely describe the velocity and density variables in the two-component integrable system and distinctly display the evolvement of the singular solutions. Moreover, the proposed method shows good conservative properties during long-time numerical simulation.

关键词： A Multi-Symplectic Compact Method for the Two-Component Camassa-Holm Equation with Singular Solutions

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

PIMD:An Integrative Approach for Drug Repositioning Using Multiple Characterization Fusion

引用

Genomics, Proteomics & Bioinformatics 2020年第5期18卷 565-581页

作者： song he Yuqi Wen Xiaoxi Yang Zhen Liu Xinyu song Xin Huang Xiaochen Bo Department of Biotechnology Beijing Institute of Radiation MedicineBeijing 100850China

The accumulation of various types of drug informatics data and computational approaches for drug repositioning can accelerate pharmaceutical research and ***,the integration of multi-dimensional drug data for precision repositioning remains a pressing ***,we propose a systematic framework named PIMD to predict drug therapeutic properties by integrating multi-dimensional data for drug *** PIMD,drug similarity networks(DSNs)based on chemical,pharmacological,and clinical data are fused into an integrated DSN(iDSN)composed of many *** than simple fusion,PIMD offers a systematic way to annotate *** drugs within clusters and drug pairs with a high iDSN similarity score are therefore identified to predict novel therapeutic *** provides new insights into the universality,individuality,and complementarity of different drug properties by evaluating the contribution of each property *** test the performance of PIMD,we use chemical,pharmacological,and clinical properties to generate an *** of the contributions of each drug property indicate that this iDSN was driven by all data types and performs better than other *** the top 20 recommended drug pairs,7 drugs have been reported to be *** source code for PIMD is available at https://***/Sepstar/PIMD/.

关键词： Drug repositioning Drug similarity network Multiple characterization fusion Network pharmacology Drug discovery

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

国外膳食营养补充剂市场分析及监管制度研究——日本

引用

精细与专用化学品 2024年第2期32卷 7-9,12页

作者：李桂英王鹤松中国医药保健品进出口商会北京100010

日本政府高度重视发展健康食品市场。日本膳食营养补充剂工业体系健全,膳食营养补充剂分为特定保健用食品、功能性标示食品和营养机能食品3个类别。日本对膳食营养补充剂监管制定了一系列法规规定,推动了健康食品产业的发展。

关键词：日本膳食营养补充剂天然健康产品监管制度

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Note on higher-point correlation functions of the ■ or ■ deformed CFTs

引用

Science China(Physics,Mechanics & Astronomy) 2021年第9期64卷 19-32页

作者： song he Max Planck Institute for Gravitational Physics (Albert Einstein Institute) Center for Theoretical Physics College of Physics Jilin University

We investigate generic n-point correlation functions of conformal field theories (CFTs),with ■ and ■ deformations,in terms of the perturbative CFT *** systematically obtain the first order correction to the generic correlation functions of CFTs with ■ or ■ *** compute the out of time ordered correlation function (OTOC) in the Ising model with ■ or ■ deformation,which confirms that these deformations do not change the integrable property up to the first order level.

关键词： integrable deformation conformal field theory quantum chaos quantum integrability quantum entanglement

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

基于Excel的DRG可视化运营分析系统设计与应用研究

引用

医院管理论坛 2024年第9期41卷 94-96,71页

作者：陈松鹤陈志文杭州市妇产科医院

目的本研究旨在设计一种基于Excel的DRG(疾病相关分组)可视化运营分析系统,并将其应用于某三甲医院的病历数据分析中。方法通过实现数据准备、DRG分组、Excel数据统计与分析和图表生成等功能,实现自动计算和分析数据的功能,并生成简洁... 详细信息

目的本研究旨在设计一种基于Excel的DRG(疾病相关分组)可视化运营分析系统,并将其应用于某三甲医院的病历数据分析中。方法通过实现数据准备、DRG分组、Excel数据统计与分析和图表生成等功能,实现自动计算和分析数据的功能,并生成简洁明了的医保DRG可视化图表报告。结果该系统具有操作简单、灵活性强、成本低等优点,能够为医院管理层提供及时、准确的运营分析数据支持。结论基于Excel的DRG可视化运营分析系统能有效解决医院现有DRG运营分析工具成本高、灵活性差等问题,提高医院运营管理的效率和综合效益。

关键词：疾病相关分组可视化

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Quantum Teleportation Through a Two-Qubit heisenberg XXZ Chain

引用

Communications in Theoretical Physics 2008年第6期49卷 1435-1438页

作者： GUO Jin-Liang NIE Jing song he-Shan School of Physics and Optoelectronic Technology Dalian University of Technology Dalian 116024 China

We consider a two-qubit heisenberg XXZ chain as a resource for quantum teleportation via the standard teleportation protocol To. The effects of anisotropic on teleportation fidelity and entanglement are studied in detail. We find anisotropic not only improves the criticM temperature Tc and criticM magnetic field Bc, beyond which quantum teleportation is inferior to classicM communication protocol, but also enhances the fidelity for fixed magnetic field B and temperature T. For entanglement teleportation, the effects of magnetic field on average fidelity and output entanglement are studied.

关键词： thermal entanglement negativity two-qubit heisenberg XXZ chain

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Decoherence of a Quantum Nonlinear Oscillator Under a Non-zero Temperature Thermal Bath

引用

Communications in Theoretical Physics 2006年第3期45卷 542-546页

作者： HAN Li-Ping ZHOU Ling song he-Shan Department of Physics Dalian University of Technology Dalian 116023 China

The characteristic time τD for decoherence process of a quantum nonlinear oscillator system under a nonzero temperature thermal bath is studied by expanding the linear entropy. By numerical analysis, it is shown that at a non-zero temperature, the quantum coherence decays much faster than at zero temperature. Moreover, the non-zero temperature thermal bath will bring a crucial suppression to the quantum effects of the observables, which causes these quantum effects to become unable to persist up to the Ehrenfest time but is insufticient to destroy the quantum-classical transition.

关键词： quantum nonlinear oscillator linear entropy decoherence timscale

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A New Quantum Communication Scheme by Using Bell States

引用

Communications in Theoretical Physics 2006年第2期45卷 271-274页

作者： CAO Hai-Jing CheN Jing song he-Shan Department of Physics Dalian University of Technology Dalian 116024 China

A new quantum communication scheme based on entanglement swapping is presented. Simplified calculation symbols are adopted to realize the process. Quantum key distribution and quantum secure direct communication can be simultaneously accomplished in the scheme. Two legitimate communicators can secretly share four certain key bits and four random key bits via three EPR pairs （quantum channels）.

关键词： quantum key distribution quantum secure direct communication Bell-state measurements security

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：