检索结果-南通市图书馆

Metabolomics provide insights into the endogenous mechanism of strobilation in the scyphozoan jellyfi sh Rhopilema esculentum

引用

Journal of Oceanology and Limnology 2022年第1期40卷 226-234页

作者： Jianlong GE Xiaohui CHEN Changlin LIU jie tan Li BIAN Lifei CHEN Siqing CHEN Yellow Sea Fisheries Research Institute Chinese Academy of Fishery SciencesLaboratory for Marine Fisheries Science and Food Production ProcessesPilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266071China Yancheng Huayi Aquatic Products Co.Ltd. Yancheng 224300China

Strobilation is a well-organized metamorphosis process in scyphozoan jellyfi sh,through which the benthic polyp develops into the pelagic *** far,knowledge on the molecular mechanisms behind the drastic morphological and physiological changes remains *** the present study,the metabolic profi les in polyp and strobila stages of jellyfi sh Rhopilema esculentum were examined using ultra-performance liquid chromatography coupled to a mass spectrometer.A total of 3071 metabolites with putative annotation were detected,of which 167 were identifi ed as diff erential metabolites between the polyp and *** the metabolites,31 signifi cantly decreased and 136 signifi cantly increased in abundance in the ***,one of the previously proposed strobilation inducer of Aurelia,was not detected in this *** indole-containing compounds are known for triggering strobilation in *** indole derivatives and an indole-isomer containing metabolite were detected among the most signifi cantly increased metabolites,which may be potential endogenous molecules for strobilation *** membrane-associated phospholipids and the infl ammation and oxidative stress-related eicosanoids were found to have signifi cant *** the functions of these metabolites in strobilation are not yet completely known,they provide some clues to the induction of the process of strobilation and metabolic responses that take place during strobilation.

关键词： Rhopilema esculentum scyphozoan jellyfi sh strobilation metabolomics

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

How Effective are Decentralized Anti-poverty Programs?

引用

China & World Economy 2024年第4期32卷 85-113页

作者： Shuai Chen Mingda Cheng jie-Sheng tan-Soo China Academy for Rural Development and School of Public Affairs Zhejiang UniversityChina Jiangxi Caitong Supply Chain Financial Group Co. Ltd.Jiangxi Financial Holding Group Co.Ltd.China Lee Kuan Yew School of Public Policy National University of SingaporeSingapore

This study examines the effectiveness of China's National Poor Counties(NPC)program,a decentralized anti-poverty initiative,by analyzing five rounds of individual-level panel data from 1988 to *** impact of two waves of the NPC program(1994 and 2001)is evaluated utilizing a panel fixed-effects regression *** results indicate substantial positive effects,with residents in NPC counties experiencing a 47 percent income increase,3.1 percent higher employment rates,and a 5.7 percent rise in household expenditure from 1988 to 2008,in comparison with non-NPC ***,the program benefited vulnerable populations,dispelling concerns about"elite capture."The study also reveals that evolving policy focus has played a pivotal role in sustaining the effects of the program over *** 1994 round prioritized low-skilled employment,and the 2001 wave emphasized productivity enhancement through skills *** findings highlight the continued efficacy of decentralized anti-povertyefforts.

关键词： decentralization elite capture National Poor Counties program poverty

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

Understanding sequence effect in DNA bending elasticity by molecular dynamic simulations

引用

Communications in Theoretical Physics 2021年第7期73卷 127-135页

作者： Xiao-Wei Qiang Hai-Long Dong Kai-Xin Xiong Wenbing Zhang Zhi-jie tan Department of Physics and Key Laboratory of Artificial Micro&Nano-Structures of Ministry of Education School of Physics and TechnologyWuhan UniversityWuhan 430072China

Structural elasticity of double-strand DNAs is very important for their biological functions such as DNA-ligand binding and DNA-protein *** all-atom molecular dynamics simulations,we investigated the bending elasticity of DNA with three typical sequences including poly(A)-poly(T)(AA-TT),poly(AT)-poly(TA)(AT-TA),and a generic sequence(GENE).Our calculations indicate that,AA-TT has an apparently larger bending persistence length(P~63 nm)than GENE(P~49 nm)and AT-TA(P~48 nm)while the persistence length of AT-TA is only very slightly smaller than that of GENE,which agrees well with those from existing ***,through extensive electrostatic calculations,we found that the sequence-dependent bending elasticity is attributed to the sequence-dependent electrostatic bending energy for AA-TT,AT-TA and GENE,which is coupled to their backbone ***,the apparently stronger bending stiffness of AA-TT is attributed to its narrower minor ***,for the three DNAs,we predicted the non-electrostatic persistence length of~17 nm,thus electrostatic interaction makes the major contribution to DNA bending *** mechanism of electrostatic energy dominating sequence effect in DNA bending elasticity is furtherly illustrated through the electrostatic calculations for a grooved coarse-grained DNA model where minor groove width and other microscopic structural parameters can be artificially adjusted.

关键词： DNA elasticity molecular dynamic simulation persistence length electrostatic interaction

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

Harnessing Distributed Deep Learning for Landslide Displacement Prediction:A Multi-Model Collaborative Approach Amidst Data Silos

引用

Journal of Earth Science 2024年第5期35卷 1770-1775页

作者： Bingchen Li Changdong Li Yong Liu jie tan Pengfei Feng Wenmin Yao Faculty of Engineering China University of GeosciencesWuhan 430074China Badong National Observation and Research Station of Geohazards China University of GeosciencesWuhan 430074China School of Mechanical Engineering and Electronic Information China University of GeosciencesWuhan 430074China School of Civil Engineering Zhengzhou UniversityZhengzhou 450001China

0 INTRODUCTION Timely and accurate prediction of landslide displacement is crucial for the early warning of landslide disasters(tang et al.,2019;Zhao et al.,2019;Zhou et al.,2018).Among various landslide displacement prediction models,deep learning(DL)models have gained substantial popularity owing to their simplicity and accuracy(Feng et al.,2024;Dou et al.,2023;Huang et al.,2023,2017;Wang et al.,2022).

关键词： landslide prediction Landslide

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

Path Planning and Intelligent Scheduling of Multi-AGV Systems in Workshop 36

Path Planning and Intelligent Scheduling of Multi-AGV System...

引用

第36届中国控制会议

作者： Chengbao Liu jie tan Hongsheng Zhao Yaning Li Xiwei Bai Institute of Automation Chinese Academy of Sciences University of Chinese Academy of Sciences

ISBN: (纸本)9781538629185

With the continuous development of intelligent logistics, the application of Automated Guided Vehicles（AGVs） increasingly becomes popular in many industrial fields. However, there are a series of problems in multi-AGV systems, such as resource allocation, conflict and deadlock. It is difficult to plan the shortest path for each AGV without conflict and collision in multi-AGV systems. In this paper, a multi-AGV scheduling system in workshop is established by using the unidirectional directed graph method and the A* algorithm for path planning of AGVs. In addition, the system is realized by programming and a simulation experiment of 20 AGVs is set up. Finally, the simulation results show that the system can effectively solve the conflict problem of AGVs, and is stable and high real-time. The system is easily extended to their similar multi-AGV scheduling systems, and has a great application value.

关键词： Automated Guided Vehicle Path Planning Scheduling

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Boosting high-rate Li-ion storage properties by La(Ⅲ)ion doping in spinel(Co_(0.2)Cr_(0.2)Fe_(0.2)Mn_(0.2)Ni_(0.2))_(3)O_(4)high-entropy oxide anode

引用

Journal of Advanced Ceramics 2024年第6期13卷 769-779页

作者： Shijie Chen Mengfan Bao Yanggang Jia Pengpeng Wang Dan Wei Yuhuan Guo jie tan Aiqin Mao Advanced Ceramics Research Center School of Materials Science and EngineeringAnhui University of TechnologyMa’anshan 243032China Key Laboratory of Green Fabrication and Surface Technology of Advanced Metal Materials(Anhui University of Technology) Ministry of EducationMa’anshan 243032China

The present work aims to create lattice distortion and optimize the surface oxygen vacancy(OV)concentration in a model spinel(Co_(0.2)Cr_(0.2)Fe_(0.2)Mn_(0.2)Ni_(0.2))_(3)O_(4)high-entropy oxide(HEO)through a heteroatom La^(3+)doping *** demonstrated,La^(3+)with a large radius can be doped successfully into the spinel lattice of(Co_(0.2)Cr_(0.2)Fe_(0.2)Mn_(0.2)Ni_(0.2))_(3)O_(4),thereby not only causing lattice distortion to increase oxygen vacancies but also refining crystalline grains and improving the specific *** with the(Co_(0.2)Cr_(0.2)Fe_(0.2)Mn_(0.2)Ni_(0.2))_(3)O_(4)anode,the(La_(0.01)CoCrFeMnNi)_(3/5.01)O_(4) anode with moderate doping exhibits excellent cycling performance(1228 mAh·g^(−1)after 400 cycles at 0.2 A·g^(−1))and yields an increase of 75%rate capability at 3 A·g^(−1)(420 mAh·g^(−1)at 3 A·g^(−1)).The desirable kinetic transport of electrons and diffusion of Li+within the moderately La^(3+)-doped anode and the synergistic interfacial pseudocapacitive behavior satisfy the redox reaction at a high rate,thus increasing rate capability.

关键词： lithium-ion battery(LIB) anode lattice distortion high-entropy oxide(HEO) high-rate performance La^(3+)doping oxygen vacancy(OV)

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

Nucleic Acid Probes for Single-Molecule Localization Imaging of Cellular Biomolecules

引用

Chemical & Biomedical Imaging 2023年第1期1卷 18-29页

作者： Junyuan Wei Cailing Ji Yingfei Wang jie tan Quan Yuan Weihong tan Molecular Science and Biomedicine Laboratory(MBL) State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan UniversityChangsha 410082China

Endogenous biomolecules in cells are the basis of all life *** visualizing the structural characteristics and dynamic behaviors of cellular biomolecules is signiffcant for understanding the molecular mechanisms in various biological *** localization microscopy(SMLM)can circumvent the optical diffraction limit,achieving analysis of the ffne structures and biological processes in living cells with nanoscale ***,the large size of traditional imaging probes prevents SMLM from accurately locating ffne structures and densely distributed biomolecules within *** recent years,nucleic acid probes have emerged as potential tools to replace conventional SMLM probes by virtue of their small size and high *** addition,due to their programmability,nucleic acid probes with different conformations can be constructed via sequence design,further extending the application of SMLM in ***,we discuss the design concepts of different conformational nucleic acid probes for SMLM and summarize the application of SMLM based on nucleic acid probes in the ffeld of ***,we provide a summary and future perspectives of the nucleic acid probe-based SMLM technology,aiming to provide guidance for the acquisition of nanoscale information about cellular biological processes.

关键词： single-molecule localization microscopy super-resolution imaging photoactivated localization microscopy stochastic optical reconstruction microscopy DNA-based point accumulation for imaging in nanoscale topography intracellular molecular interaction nucleic acid probes conformational design biomolecular analysis

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

A family of quasi-cubic blended splines and applications

引用

Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2006年第9期7卷 1550-1560页

作者： SU Ben-yue tan jie-qing School of Computer ＆ Information Hefei University of Technology Hefei 230009 China Department of Mathematics Anqing Teachers College Anqing 246011 China Institute of Applied Mathematics Hefei University of Technology Hefei 230009 China

A class of quasi-cubic B-spline base functions by trigonometric polynomials are established which inherit properties similar to those of cubic B-spline bases. The corresponding curves with a shape parameter a, defined by the introduced base functions, include the B-spline curves and can approximate the B-spline curves from both sides. The curves can be adjusted easily by using the shape parameter a, where dpi（a,t） is linear with respect to da for the fixed t. With the shape parameter chosen properly, the defined curves can be used to precisely represent straight line segments, parabola segments, circular arcs and some transcendental curves, and the corresponding tensor product surfaces can also represent spherical surfaces, cylindrical surfaces and some transcendental surfaces exactly. By abandoning positive property, this paper proposes a new C^2 continuous blended interpolation spline based on piecewise trigonometric polynomials associated with a sequence of local parameters. Illustration showed that the curves and surfaces constructed by the blended spline can be adjusted easily and freely. The blended interpolation spline curves can be shape-preserving with proper local parameters since these local parameters can be considered to be the magnification ratio to the length of tangent vectors at the interpolating points. The idea is extended to produce blended spline surfaces.

关键词： Blended spline interpolation C^2 continuity Global parameters Local parameters Quasi-cubic spline Trigonometric polynomials

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

Transcriptome based high-throughput SSRs and SNPs discovery in the medicinal plant Lagenaria siceraria

引用

BIOCELL 2021年第2期45卷 371-386页

作者： HONGYUAN ZHANG MIN ZHANG jie tan SHUPING HUANG GUOLIN ZHOU XIA CHEN Wuhan Academy of Agricultural Sciences Wuhan430065China

Lagenaria siceraria(Molina)Standley has unique biological characteristics with high nutritional and medicinal *** is an important pharmaceutical plant with various biologically active *** improvement and deeper genomic studies require a rich resource of molecular *** application of next-generation sequencing technology,especially for transcriptome profiling,has greatly facilitated high throughput single nucleotide polymorphism(SNP)and simple sequence repeat(SSR)*** this study,we sequenced the transcriptome of three major cultivars of *** and obtained 64.88 GB of clean *** assembled high-quality reads were clustered into 89,347 unigenes,which were annotated by non-redundant protein database,Swiss-Port,Eukaryotic Ortholog Groups,Kyoto Encyclopedia of Genes and Genomes,and gene ontology databases.A total of 8,891 SSR and 35,873 SNP markers were predicted from unigenes by MISA and SAM tools,*** of the predicted markers in *** showed that the SSR and SNP densities were 60 and 243 markers per Mb of genome,respectively,and the estimated ratio of transition to transversion of SNP was *** markers will be very useful for genetic studies in ***,especially for the high-density linkage map construction and genome-wide association *** genomic studies based on these results will facilitate the identification of novel genes or alleles of pharmaceutical importance.

关键词： Lagenaria siceraria Transcriptome sequencing SNP SSR Genetic improvement

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

Effect of flash thermal annealing by pulsed current on rotational anisotropy in exchange-biased NiFe/FeMn film

引用

Chinese Physics B 2018年第8期27卷 543-548页

作者： Zhen Wang Shi-jie tan Jun Li Bo Dai Yan-Ke Zou State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials Southwest University of Science and TechnologyMianyang 621010China The 9th Institute of China Electronics Technology Group Corporation Mianyang 621000China

In this paper, Ta/[NiFe（15 nm）/FeMn（10 nm）]/Ta exchange-biased bilayers are fabricated by magnetron sputtering, and their static and dynamic magnetic properties before and after rapid annealing treatment with pulsed current are charac- terized by using a vibrating sample magnetometer （VSM） and a vector network analyzer （VNA）, respectively. The exchange bias field He and static anisotropy field Hksta decrease from 118.45 Oe （10e = 79.5775 A.m-1） and 126.84 Oe at 0 V to 94.75 Oe and 102.31 Oe at 90 V, respectively, with increasing capacitor voltage, which supplies pulsed current to heat the sample. The effect of flash thermal annealing by pulsed current on the rotational anisotropy （Hrot）, the difference value between static and dynamic magnetic anisotropy, is investigated particularly. The highest Hrot is obtained in the sample annealing with 45-V capacitor （3300 μF） voltage. According to the anisotropic magnetoresistance measurements, it can be explained by the fact that the temperature of the sample is around the blocking temperature of the exchange bias system （Tb） at 45 V, the critical temperature where the formation of more unstable antiferromagnetic grains occurs.

关键词： rapid annealing sputtering pulsed current rotational anisotropy

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：