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Empirical rheological law of multiphase rocks:Energy minimizing approach independent of bound theory

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Chinese Science Bulletin 2003年第22期48卷 2496-2500页

作者： ZANG Shaoxian, jiang yan & wei Rongqiang Department of Geophysics, Peking University, Beijing 100871, China Department of Geophysics Peking University Beijing China

Based on energy minimizing approach of bound theory, the influence of the distribution of constituent minerals on rheological property of rocks is discussed. Energy minimizing approach independent of the bound theory is advanced after the constraint condition is improved. The strength of four multiphase rocks is calculated with the new empirical rheological law. Results indicate that the new law has a reasonable physical explanation and fits the experimental data very well.

关键词：流变学能量最小化法多相岩石地质学

A comprehensive framework for predicting public opinion by tracking multi-informational dynamics

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Frontiers of Computer Science 2024年第4期18卷 197-199页

作者： Mingtao SUN yan wei Shan jiang Guozhu JIA School of Economics and Management Beihang UniversityBeijing 100191China School of Software Beihang UniversityBeijing 100191China School of Economics Wuhan University of TechnologyWuhan 430070China

1 Introduction In the digital landscape,trivial rumors can spark significant online reactions[1].Accurate prediction of public opinion is important for crisis management,misinformation mitigation,and fostering public ***,existing methods often fail to thoroughly investigate multiple informational factors and their timely interactions[2-4],thereby limiting their efficacy in analysing public opinion.

关键词： thereby thoroughly limiting

转录组分析调控桃采后冷害和硬度的候选主效基因

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农业生物技术学报 2024年第4期32卷 751-761页

作者：张志刚陈玉峰王长江徐晋姜延伟郑亚琴刘振宁陈守兵刘一华徐蒙临沂大学农林科学学院邹城市自然资源和规划局

冷敏性果实采后低温贮藏容易造成果实冷害，程序性降温(low-temperature conditioning, LTC)处理在减缓桃(Prunus persica)等冷敏性果实冷害中具有显著效果，但是贮藏前期果实会发生轻微软化。本研究通过加权基因共表达网络分析(weighte... 详细信息

冷敏性果实采后低温贮藏容易造成果实冷害，程序性降温(low-temperature conditioning, LTC)处理在减缓桃(Prunus persica)等冷敏性果实冷害中具有显著效果，但是贮藏前期果实会发生轻微软化。本研究通过加权基因共表达网络分析(weighted gene co-expression network analysis, WGCNA)发现了与冷害和硬度表型高度相关的基因模块。分别对模块基因进行主效转录因子鉴定和调控网络构建，发现桃WRKY转录因子PpWRKY43和生长素响应因子(auxin response factor, ARF) PpARF1可能通过调控冷调节蛋白(cold-regulated protein, COR) PpCOR413-2和脂氧合酶(lipoxygenase 5, LOX5) PpLOX5参与果实采后冷害调控，NAC转录因子PpNAC5可能通过调控桃果胶裂解酶2(P. persica pectate lyase 2, PpePL2)参与桃果实采后软化。本研究结果为桃果实采后保鲜减损研究提供基础资料。

关键词：桃采后冷害加权基因共表达网络分析(WGCNA) 硬度

Genetic Analysis of 15 STR Loci in Chinese Han Population from West China

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Genomics, Proteomics & Bioinformatics 2007年第1期5卷 66-69页

作者： Ya-Jun Deng jiang-wei yan Xiao-Guang Yu Yuan-Zhe Li Hao-Fang Mu yan-Qing Huang Xiao-Tie Shi wei-Min Sun Beijing Institute of Genomics Chinese Academy of Sciences Beijing 101300 China Center of Forensic Sciences Beijing Institute of Genomics Chinese Academy of Sciences Beijing 101300 China

Allele frequencies for 15 short tandem repeat （STR） loci （D8S1179, D21S11, D7S820, CSFIPO, D3S1358, TH01, D13S317, D16S539, D2S1338, D19S433, vWA, TPOX, D18S51, D5S818, and FGA） were obtained from 7,636 unrelated individuals of Chinese Han population living in Qinghai and Chongqing, China. Totally 206 alleles were observed, with the corresponding allele frequencies ranging from 0.0001-0.4982. Chi-square test showed that all of the STR loci agreed with the Hardy-weinberg equilibrium. We also compared our data with previously published population data of other ethnics or areas. The results are valuable for human identification and paternity testing in Chinese Han population.

关键词： forensic science DNA typing population genetic analysis short tandem repeats Chinese Han population

Research progress on cyclodextrins and their derivatives in the synthesis of conducting polymers

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Journal of Chemistry and Chemical Engineering 2009年第8期3卷 38-43页

作者： FENG jiang-tao yan wei School of Energy and Power Engineering Xi ＇an Jiaotong University Xi ＇an 710049 China

Cyclodextrins have gained wide attentions for their unique physicochemicai properties. In recent years, conducting polymers with special micro-structure and properties are synthesized in the presence of cyclodextrins. In this article, the application of cyclodextrins in the synthesis process of conducting polymer metarials is discussed. And authors＇ study results are summarized.

关键词： cyclodextrins(CDs) polyaniline polypyrrole(PPy) inclusion complexes

Role of magnetic fields on the outer crust in a magnetar

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Chinese Physics C 2024年第7期48卷 160-167页

作者：蒋威陈晏军 Department of Physics and Electronic Science Changsha University of Science and TechnologyChangsha 410114China Hunan Provincial Key Laboratory of Flexible Electronic Materials Genome Engineering Changsha 410114China

We explore the properties of 4110 nuclides from Z=5 to Z=82 with the Sky3D code and the composition of the outer crust in magnetars under extreme magnetic *** effects of the variation in nuclear masses due to magnetic fields on the outer crust are comprehensively *** neutron-drip transition pressure,equation of state,and neutron fraction in the outer crust are also discussed.

关键词： outer crust in a magnetar magnetic fields nuclear masses Sky3D code

Stable carbon isotope composition and intrinsic water use efficiency in plants along an altitudinal gradient on the eastern slope of Yulong Snow Mountain, China

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Ecological Processes 2024年第2期13卷 218-230页

作者： Feng jiang Tao Pu Zi-Jing Xue yan-wei Ma Xiao-Yi Shi Fu-Xi Shi College of Geography and Environmental Sciences Zhejiang Normal University Yulong Snow Mountain Glacier and Environment Observation and Research Station/State Key Laboratory of Cryospheric Sciences Northwest Institute of Eco-Environment and ResourcesChinese Academy of Sciences Key Laboratory of National Forestry and Grassland Administration on Forest Ecosystem Protection and Restoration of Poyang Lake Watershed College of Forestry Jiangxi Agricultural University

Background Stable carbon isotope composition(δ13Cp) can be used to estimate the changes in intrinsic water use efficiency（iWUE） in plants,which helps us to better understand plants' response strategies to climate *** study focused on the variations in δ13Cpand iWUE for the different life-form plants（i.e.,herbs,shrubs,and trees）along an altitudinal gradient（3300,3600,3900,4100,4300,and 4500 m） on the eastern slope of Yulong Snow Mountain,southeastern margin of the Qinghai-Tibet *** response mechanisms of δ13Cpand iWUE for different life-form plants to altitude were thoroughly analyzed in this mountain *** The δ13Cpvalues of plants on the eastern slopes of Yulong Snow Mountain ranged from-30.4‰to-26.55‰,with a mean of-28.02‰,indicating a dominance of *** δ13Cpand iWUE values varied among different life-form plants in the order of herbs> shrubs> trees,particularly in 3600,3900,and 4300 ***δ13Cpand iWUE values for herbs and shrubs increased with altitude and were mainly controlled by air *** two parameters for trees exhibited a trend of initial decrease followed by an increase with *** 3900 m,the δ13Cpand iWUE values decreased with altitude,influenced by soil ***,above 3900 m,the two parameters increased with altitude,mainly regulated by air *** addition,iWUE was positively correlated with leaf P content but negatively correlated with leaf N:P ratio,especially for herbs and trees,suggesting that P plays a key role in modulating iWUE in this *** The diffe rentiated responses of water availability for different life-form plants to a higher altitudinal gradient are regulated by air temperature,soil moisture,and leaf P content in the Yulong Snow *** results provide valuable insights into understanding the wate r-carbon relationships in high-altitude ecosystems.

关键词： Stable carbon isotope Water use efficiency Altitude Life form Yulong Snow Mountain

A Model for Detecting Fake News by Integrating Domain-Specific Emotional and Semantic Features

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Computers, Materials & Continua 2024年第8期80卷 2161-2179页

作者： Wen jiang Mingshu Zhang Xu’an Wang wei Bin Xiong Zhang Kelan Ren Facheng yan College of Cryptography Engineering Engineering University of People’s Armed PoliceXi’an710086China Key Laboratory of Network and Information Security Engineering University of People’s Armed PoliceXi’an710086China Key Laboratory of CTC&Information Engineering Engineering University of People’s Armed PoliceMinistry of EducationXi’an710086China

With the rapid spread of Internet information and the spread of fake news,the detection of fake news becomes more and more *** detection methods often rely on a single emotional or semantic feature to identify fake news,but these methods have limitations when dealing with news in specific *** order to solve the problem of weak feature correlation between data from different domains,a model for detecting fake news by integrating domain-specific emotional and semantic features is *** method makes full use of the attention mechanism,grasps the correlation between different features,and effectively improves the effect of feature *** algorithm first extracts the semantic features of news text through the Bi-LSTM(Bidirectional Long Short-Term Memory)layer to capture the contextual relevance of news ***-BiLSTM is then used to extract emotional features and predict the probability of positive and negative emotions in the *** then uses domain features as an enhancement feature and attention mechanism to fully capture more fine-grained emotional features associated with that ***,the fusion features are taken as the input of the fake news detection classifier,combined with the multi-task representation of information,and the MLP and Softmax functions are used for *** experimental results show that on the Chinese dataset weibo21,the F1 value of this model is 0.958,4.9% higher than that of the sub-optimal model;on the English dataset FakeNewsNet,the F1 value of the detection result of this model is 0.845,1.8% higher than that of the sub-optimal model,which is advanced and feasible.

关键词： Fake news detection domain-related emotional features semantic features feature fusion

Dynamic Analysis of A Deepwater Drilling Riser with A New Hang-off System

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China Ocean Engineering 2024年第1期38卷 29-41页

作者： LI yan-wei LIU Xiu-quan WANG Jin-long CHEN Guo-ming CHANG Yuan-jiang SHENG Lei-xiang Centre for Offshore Engineering and Safety Technology China University of PetroleumQingdao 266580China National Engineering Laboratory of Offshore Geophysical and Exploration Equipment China University of PetroleumQingdao 266580China China CNOOC Research Institute Co. Ltd.Beijing 100028China

The safety of risers in hang-off states is a vital challenge in offshore oil and gas engineering.A new hang-off system installed on top of risers is proposed for improving the security of *** approach leads to a challenging problem:coupling the dynamics of risers with a new hang-off system combined with multiple structures and complex *** accurately analyze the dynamic responses of the coupled system,a coupled dynamic model is established based on the Euler-Bernoulli beam-column theory and penalty function method.A comprehensive analysis method is proposed for coupled dynamic analysis by combining the finite element method and the Newmarkβ*** analysis program is also developed in MATLAB for dynamic *** simulation results show that the dynamic performances of the risers at the top part are significantly improved by the new hang-off system,especially the novel design,which includes the centralizer and articulation *** bending moment and lateral deformation of the risers at the top part decrease,while the hang-off joint experiences a great bending moment at the bottom of the lateral restraint area which requires particular attention in design and *** platform navigation speed range under the safety limits of risers expands with the new hang-off system in use.

关键词： deepwater drilling riser new hang-off system dynamic analysis finite element method penalty function method