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Cross-Target Stance Detection with Sentiments-Aware Hierarchical Attention Network

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Computers, Materials & Continua 2024年第10期81卷 789-807页

作者： Kelan Ren Facheng Yan Honghua chen Wen Jiang Bin wei Mingshu Zhang College of Cryptographic Engineering Engineering University of PAPXi’an710086China

The task of cross-target stance detection faces significant challenges due to the lack of additional background information in emerging knowledge domains and the colloquial nature of language *** stance detection methods often struggle with understanding limited context and have insufficient generalization across diverse sentiments and semantic *** paper focuses on effectively mining and utilizing sentimentsemantics knowledge for stance knowledge transfer and proposes a sentiment-aware hierarchical attention network(SentiHAN)for cross-target stance *** introduces an improved hierarchical attention network designed to maximize the use of high-level representations of targets and texts at various fine-grain *** model integrates phrase-level combinatorial sentiment knowledge to effectively bridge the knowledge gap between known and unknown *** doing so,it enables a comprehensive understanding of stance representations for unknown targets across different sentiments and semantic *** model’s ability to leverage sentimentsemantics knowledge enhances its performance in detecting stances that may not be directly observable from the immediate *** experimental results indicate that SentiHAN significantly outperforms existing benchmark methods in terms of both accuracy and ***,the paper employs ablation studies and visualization techniques to explore the intricate relationship between sentiment and *** analyses further confirm the effectiveness of sentence-level combinatorial sentiment knowledge in improving stance detection capabilities.

关键词： Cross-target stance detection sentiment analysis commentary-level texts hierarchical attention network

Cobalt(Ⅱ)coordination polymers as anodes for lithium-ion batteries with enhanced capacity and cycling stability

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Journal of Materials Science & Technology 2018年第8期34卷 1412-1418页

作者： Yumei Luo Lixian Sun Fen Xu Siyue wei Qingyong Wang Hongliang Peng Chonglin chen Guangxi Key Laboratory of Information Materials Guangxi Collaborative Innovation Center of Structure and Property for New Energy and MaterialsSchool of Material Science and EngineeringGuilin University of Electronic TechnologyGuilin541004China Department of Physics and Astronomy Texas University at San AntonioUSA

Coordination polymer Co-btca （H4btca = 1,2,4,5-benzenetetracarbo ylic acid） was synthesized using a simply hydrothermal method. In particular, the as-prepared Co-btca was applied as an anode material for lithium-ion battery for the first time. Single crystal X-ray diffraction results indicated that the as- prepared Co-btca displayed unique layer structure, which was beneficial to transport Li ions and electrons. Also, owing to the porous structure and appropriate specific surface area, Co-btca electrode delivered a reversible capacity of 801.3 mA h/g after 50 cycles at a current density of 200 mA/g. The reversible capacity of 773.9 mA h/g was maintained after 200 cycles at a current density of 500 mA/g, exhibiting enhanced cycle stability. It also showed improved rate performance, making it a promising anode material and a new choice for lithium-ion batteries.

关键词： Lithium-ion battery Anode Coordination polymer Carboxylate

Failure modes of coal containing gas and mechanism of gas outbursts

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Mining Science and Technology 2010年第4期20卷 504-509页

作者： HUANG wei chen Zhanqing YUE Jianhua ZHANG Yu YANG Min State Key Laboratory of Geomechanics & Deep Underground Engineering China University of Mining & Technology Xuzhou 221008 China Department of Civil Engineering Henan University of Urban Construction Pingdingshan 467044 China School of Mechanics & Civil Engineering China University of Mining & Technology Xuzhou 221116 China School of Resource and Earth Science China University of Mining & Technology Xuzhou 221116 China

In order to explain the mechanism for gas outburst, the process of evolving fractures in coal seams is described using system dynamics with variable boundaries. We discuss the failure modes of coal containing gas and then established the flow rules after failure. The condition under which states of deformation convert is presented and the manner in which these convert is proposed. In the end, the process of gas outbursts is explained in detail. It shows that a gas outburst is a process in which the boundaries of coal seams are variable because of coal failure. If the fractures are not connected or even closed owing to coal/rock stress, fractured zones will retain a certain level of carrying capacity because of the self-sealing gas pressure. When the accumulation of gas energy reaches its limit, coal seams will become unstable and gas outbursts take place.

关键词： systems with variable boundaries gas outburst coal containing gas failure flow rule

Hydrogel Microneedle Arrays for Transdermal Drug Delivery

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Nano-Micro Letters 2014年第3期6卷 191-199页

作者： Xiaoyun Hong Zaozhan Wu Lizhu chen Fei Wu Liangming wei weien Yuan School of Pharmacy Shanghai Jiao Tong University Research Institute of Micro/Nano Science and Technology Shanghai Jiao Tong University

Stratum corneum is the main obstacle for drugs to pass through the skin. Microneedles are composed of arrays of micro-projections formed with different materials, generally ranging from 25-2000 μm in height. Microneedles straightly pierce the skin with its short needle arrays to overcome this barrier. Microneedles can be divided into several categories, for instance, solid microneedles, coated microneedles, and hollow microneedles and so on. However, all these types have their weak points related to corresponding *** recent years, pioneering scientists have been working on these issues and some possible solutions have been investigated. This article will focus on the microneedle arrays consisting of hydrogels. Hydrogels are commonly used in drug delivery field. Hydrogel microneedles can be further divided into dissolving and degradable microneedles and phase transition microneedles. The former leaves drug with matrix in the skin. The latter has the feature that drugs in the matrix are delivered while the remaining ingredients can be easily removed from the skin after usage. For drugs which are required to be used every day, the phase transition microneedles are more acceptable. This article is written in order to summarize the advantages of these designs and summarize issues to be solved which may hinder the development of this technology.

关键词： Hydrogel Microneedle Phase transition Dissolving and degradable

Massic Heat Capacities of Ammonium Penta-and Tetra-molybdates

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Journal of Central South University 2000年第4期12卷 216-218页

作者： YIN Zhou-lan chen Qi-yuan ZHANG Ping-min YUE wei College of Chemistry and Chemical Engineering Central South UniversityChangsha 410083China

Single phases of ammonium penta and tetra molybdates were prepared. The massic heat capacities at normal pre ssure below their decomposition temperatures were measured by drop method. The relationships of the massic heat capacities of ammonium molybdates with those of the decomposition products were also discussed. The results show that the massic heat capacities of ammonium molybdates can be estimated by adding together contributions from their decomposition products, and the less change of chemical bonds, the more accurate of the estimation.

关键词： massic heat capacity ammonium pentamolybdate ammonium tetramolybdate drop method

Improved Breakdown Voltage in AlGaN/GaN High Electron Mobility Transistors by Employing Polyimide/Chromium Composite Thin Films as Surface Passivation and High-Permittivity Field Plates

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Chinese Physics Letters 2013年第9期30卷 145-148页

作者： CHU Fu-Tong chen Chao ZHOU wei LIU Xing-Zhao State Key Laboratory of Electronic Thin Films and Integrated Devices University of Electronic Science and Technology of ChinaChengdu 610054

The breakdown voltage of AlGaN/GaN high electron mobility transistors(HEMTs)is enhanced by employing metal chromium(Cr)nanoparticle-embedded polyimide(PI)as a high-permittivity(high-𝐿)dielectric covering both the source-gate and gate-drain *** PI/Cr composite high-𝐿dielectrics acting as a field plate prevent the occurrence of strong electric fields produced at the drain side edge of the gate electrode to obtain an optimum lateral electric flux of *** breakdown voltage is improved by approximately 35%when using the PI/Cr thin film dielectric field plate while maintaining high performance,a high transconductance value of 122.4mS/mm,and a large saturated drain-current value of 748mA/mm.

关键词： AlGaN/GaN drain HEMTs

Expert consensus on the diagnosis and treatment of thrombocytopenia in adult critical care patients in China

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Military Medical Research 2020年第3期7卷 283-302页

作者： Jing-chun Song Shu-Yuan Liu Feng Zhu Ai-Qing Wen Lin-Hao Ma wei-Qin Li Jun Wu Department of Critical Care Medicine the 908th Hospital of Joint Logistics Support Forces of Chinese PLANanchang 360104China Emergency Department the Sixth Medical CenterChinese PLA General HospitalBeijing 100048China Burns and Trauma ICU Changhai HospitalNaval Medical UniversityShanghai 200003China Department of Blood Transfusion Daping Hospital of Army Medical UniversityChongqing 400042China Department of Emergency and Critical Care Medicine Changzheng HospitalNaval Medical UniversityShanghai 200003China Surgery Intensive Care Unit Jinling HospitalMedical School of Nanjing UniversityNanjing 210002China Department of Clinical Laboratory Peking University Fourth School of Clinical MedicineBeijing Jishuitan HospitalBeijing 100035China

Thrombocytopenia is a common complication of critical care *** rates of bleeding events and mortality are also significantly increased in critical care patients with ***,the Critical Care Medicine Committee of Chinese People’s Liberation Army(PLA)worked with Chinese Society of Laboratory Medicine,Chinese Medical Association to develop this consensus to provide guidance for clinical *** consensus includes five sections and 27 items:the definition of thrombocytopenia,etiology and pathophysiology,diagnosis and differential diagnosis,treatment and prevention.

关键词： Thrombocytopenia Adult Critical care Diagnosis Treatment Expert consensus

Construction and validation of prognostic model based on autophagy-related lncRNAs in gastric cancer

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BIOCELL 2022年第1期46卷 97-109页

作者： MENGQIU chenG wei CAO GUODONG CAO XIN XU BO chen Department of General Surgery The First Affiliated Hospital of Anhui Medical UniversityHefei230022China Anhui Medical University Hefei230022China

Gastric cancer(GC)is one of the most common cancer *** emerging evidence indicates that autophagy-related long non-coding RNA(lncRNA)plays an important role in the progression of GC,the prognosis of GC based on autophagy is still *** Cancer Genome of Atlas stomach adenocarcinoma(TCGA-STAD)dataset was downloaded and separated into a training set and a testing set ***,24 autophagy-related lncRNAs were found strongly associated with the survival of the TCGA-STAD dataset.11 lncRNAs were selected to build the risk score model through the least absolute shrinkage and selection operator(LASSO)*** patient got a risk score(RS),and patients were separated into a high-risk group and a low-risk group due to the median *** multivariate Cox analysis showed that the RS could be an independent prognosis *** Kaplan-Meier survival analysis and the Receiver Operating Characteristic(ROC)curve indicated the model had an excellent prediction *** Ontology(GO)and Kyoto Encyclopedia of Genes and Genomes(KEGG)analysis revealed that the mRNAs in the prognostic network were mainly involved in the autophagy and ubiquitin-like protein ligase *** Set Enrichment Analysis(GSEA)analysis uncovered that the differentially expressed genes(DEGs)in the high-risk group partially participated in the ECM receptor interaction and other signaling *** results indicated that the risk score model based on the autophagy-related lncRNAs performed well in the prediction of prognosis for patients with GC.

关键词： Gastric cancer Prognosis Autophagy Nomogram Long non-coding RNAs

Cadmium and copper uptake and accumulation by Sesbania rostrata seedling, a N-fixing annual plant: implications for the mechanism of heavy metal tolerance

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Frontiers in Biology 2009年第2期4卷 200-206页

作者： Fuhua chen wei FANG Zhongyi YANG Jiangang YUAN School of Life Sciences Sun Yat-Sen UniversityGuangzhou 510275China Biology Department Long Island University-Brooklyn1 University PlazaBrooklynNY 11201USA

Sesbania rostrata,an annual tropical legume,has been found to be tolerant to heavy metals,with an unknown *** is a promising candidate species for revegetation at mine *** this study,sequential extractions with five buffers and strong acids were used to extract various chemical forms of cadmium and copper in ***,with or without Cd or Cu treatments,so that the mechanisms of tolerance and detoxification could be *** metals had low transition rates from roots to the aboveground of *** transition ratio of Cd(4.00%)was higher than that of Cu(1.46%).The proportion of NaCl extracted Cd(mostly in proteinbinding forms)increased drastically in Cd treated plants from being undetectable in untreated *** suggests that Cd induced biochemical processes producing proteinlike phytochelatins that served as a major mechanism for the high Cd tolerance of *** case for Cu was quite different,indicating that the mechanism for metal tolerance in *** is *** proportion of water-insoluble Cu(*** and phosphate)in roots increased significantly with Cu treatment,which partially explains the tolerance of *** to ***,how *** copes with the high biotic activity of inorganic salts of Cu,which increased in all parts of the plant under Cu stress,is a question for future *** rostrata is among the very few N-fixing plants tolerant to heavy *** study provides evidence for the detoxification mechanism of metals in Sesbania rostrata.

关键词： Sesbania rostrata phytoremediation heavy metal tolerance sequential extraction chemical forms