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LOADING SEQUENCE AND ARRANGEMENT EFFECTS FOR TWO－DIMENSIONAL DISTRIBUTIONAL SPECTRUM

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Chinese Journal of Aeronautics 1994年第2期7卷 110-117页

作者： Ping An wang dejun Xu Hao(Mechanical Engineering institute,Northeastern University, Shenyang, China, 110006)

AbstractThe loading sequence effect in constructing a fatigue loading spectrum has been paidattention to by experts at home and abroad for many years. In this paper, loading sequcnceand arrangement effects are analysed for two dimensional distributional spectrum. It isderived that loading sequence effect is little concerned with the approaches to constructingfatigue spectrum and varies only along with the total mean value of a loading spectrumthough it has a great effect on fatigue lives of components. So the loading arrangement ef-fect is small, and the approaches to constructing fatigue spectrum have little effect on lives.

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Theoretical and experimental investigations on single-atom catalysis:Pt1/FeOx for water-gas shift reaction Shan-Fei wang1,§,Yangyang Li2,3,§,Haiyan wang1,Jin-Xia Liang1(✉),Chun Zhu1

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Nano Research 2024年第9期17卷 8627-8637页

作者： Shan-Fei wang Yangyang Li Haiyan wang Jin-Xia Liang Chun Zhu Botao Qiao School of Chemistry and Chemical Engineering Guizhou UniversityGuiyang 550025China CAS Key Laboratory of Science and Technology on Applied Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China University of Chinese Academy of Sciences Beijing 100049China

Oxide-supported metal single-atom catalysts(SACs)have exhibited excellent catalytic performance for water-gas shift(WGS)***,we report the single-atom catalyst Pt1/FeOx exhibits excellent medium temperature catalytic performance for WGS reactions by the density functional theory(DFT)calculations and experimental *** calculations indicate that H_(2)O molecules are easily dissociated at oxygen vacancies,and the formed*OH and*O are adsorbed on Pt1 single atoms and the adjacent O atoms,*** studying four possible reaction mechanisms,it is found that the optimal WGS reaction pathway is proceeded along the carboxyl mechanism(pathway III),in which the formation of*COOH intermediates can promote the stability of Pt1/FeOx SAC and the easier occurrence of WGS *** energy barrier of the rate-determining step during the entire reaction cycle is only 1.16 eV,showing the high activity for the medium temperature WGS reaction on Pt1/FeOx SAC,which was verified by experimental ***,the calculated turnover frequencies(TOFs)of CO_(2)and H_(2)formation on Pt1/FeOx at 610 K(337℃)can reach up to 1.14×10^(-3)s^(-1)·site^(-1)through carboxyl *** this work,we further expand the application potential of Pt1/FeOx SAC in WGS reaction.

关键词： water-gas shift(WGS)reaction single-atom catalyst(SAC) density functional theory(DFT) thermocatalysis

The Photovoltage-gas Sensitive Properties of 7,7,8,8-Tetracyanoquinodimethane(TCNQ)

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Chemical Research in Chinese Universities 1990年第4期6卷 341-345页

作者： Jiang Lei, wang dejun, Liu wang, Chai Xiangdong and Li Tiejin (Department of Chemistry, Jilin University, Changchun)

In this paper, surface photovoltage technique (SPV) was applied to the study of photovoltaic and gas sensitive properties of TCNQ polycrystal. It was found that SPV shows two peaks at 390 nm(P1) and 480 nm (P2) in the ultraviolet-visible range. And they are opposite in phase. The results of gaseous adsorption confirm that P, shows the acceptor characteristics, while PI shows that of donor. During adsorption, donor gas interacts with conjugated II * orbital, acceptor gas with the terminal group C=N .

关键词： Surface photovoltage Gas sensitivity Adsorption

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论英语中动构式的语义角色与特征

九江学院学报（社会科学版） 2023年第1期42卷 91-96页

作者：王德军马鞍山师范高等专科学校旅游与外语系安徽马鞍山243041

英语中动构式作为一种特殊的语言现象,它介于主动与被动之间,以形式上的主动来表达意义上的被动,在语言应用中普遍存在。在构式语法框架下,中动构式被分为典型和非典型两类。文章以中动构式中施事、谓语动词和受事这三大论元为出发点,... 详细信息

英语中动构式作为一种特殊的语言现象,它介于主动与被动之间,以形式上的主动来表达意义上的被动,在语言应用中普遍存在。在构式语法框架下,中动构式被分为典型和非典型两类。文章以中动构式中施事、谓语动词和受事这三大论元为出发点,通过对事物的特定状态或固有属性的描述,找到中动构式在语义的稳定性、论元关系复杂性和主语生命度所造成的认知负荷方面呈现出的不同语义特征。并从认知的角度,借助系统评价功能理论解释英语中动构式的三大语义角色的特点,以帮助学习者更加全面系统地了解和掌握中动构式的语义特征,提升其英语语言应用能力。

关键词：英语中动构式语义角色语义特征构式语法

论附加语在英语中动构式评价意义中的建构作用

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广西科技师范学院学报 2023年第2期38卷 75-81,97页

作者：王德军马鞍山师范高等专科学校旅游与外语系安徽马鞍山243041

英语中动构式作为一种中间语态,以形式上的主动表达意义上的被动。主语、谓语和附加语是英语中动构式的三大组成部分,在功能上分别起到受事、发出动作和修饰补充的作用。附加语位于英语中动构式末端,由副词或短语搭配构成,在表达状态或... 详细信息

英语中动构式作为一种中间语态,以形式上的主动表达意义上的被动。主语、谓语和附加语是英语中动构式的三大组成部分,在功能上分别起到受事、发出动作和修饰补充的作用。附加语位于英语中动构式末端,由副词或短语搭配构成,在表达状态或性质的过程中展现认知主体的意愿。评价理论衍生于系统功能语言学,更加注重人际意义。本研究从评价理论的三大系统出发,对照英语中动构式各组成部分的评价功能,发现其评价意义主要取决于认知主体所选择的附加语;并结合实例分别从特点、难易度、速度和倾向性四个维度,描述分析认知主体在英语中动构式中所表达的情感、态度和立场,从而建构了附加语在英语中动构式中的评价意义。

关键词：附加语英语中动构式评价意义副词评价理论

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基于样本构造和孪生胶囊网络的医学意图识别

中南民族大学学报（自然科学版） 2022年第5期41卷 606-612页

作者：龚建全王德军孟博中南民族大学计算机科学学院武汉430074

意图识别是自然语言理解中的重要任务,为构建医疗领域对话系统奠定了基础.然而医学问句特征稀疏、种类易混淆,导致识别率不高.针对上述问题,提出了一种结合BERT和胶囊网络的S-BCN模型,并将意图识别任务转化为语义相似度任务进行处理.首... 详细信息

意图识别是自然语言理解中的重要任务,为构建医疗领域对话系统奠定了基础.然而医学问句特征稀疏、种类易混淆,导致识别率不高.针对上述问题,提出了一种结合BERT和胶囊网络的S-BCN模型,并将意图识别任务转化为语义相似度任务进行处理.首先将意图分类数据集构造成问句对样本和问句意图对样本进行分阶段训练,一阶段通过将问句对样本输入BERT层生成词向量矩阵,然后通过胶囊网络层提取出局部语义特征,得到问句的向量表示,再通过计算向量的余弦距离得到问句对的语义相似度;二阶段将问句意图对样本输入模型再次进行训练,最后通过打分模块得到问句的意图类别.该方法在中文医疗信息处理挑战榜CBLUE的意图分类数据集上测试,其准确率达到86.76%,相比基线模型BERT提高2.61%.

关键词：意图识别孪生胶囊网络医学信息语义相似度

Surface Photovoltage Studies of Moisture Sensitive Characteristic of Copper Tetrasulfonato-Phthalocyanine

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Chemical Research in Chinese Universities 1991年第3期7卷 162-166页

作者： Liu wang, Xiao Liangzhi, Liang Yuexia, Tian Ke, wang dejun and Li Tiejin (Department of Chemistry, Jilin University, Changchun)

The surface photovoltaic characteristic of copper tetrasulfonato- phthalocyanine (CuTsPc) in water vapor was studied by surface photovoltage spectroscopy (SPS). It was found that the adsorption of water vapor caused some marvelous changes of the photovoltaic response, that is, the SPS signal diminished rapidly and even reversed; the bands were widened and displayed a bathochromic shift. The dependence of surface photovoltage on the vapor pressure indicates that the reversed signal reaches to a maximum when the vapor pressure is 4.7×102 Pa. The time response velocity, reversibility, selectivity and reproducibili-ty were examined as well. All results obtained show that CuTsPc is of great significance in the manufacture of moisture sensitive devices. In addition, the mechanism of moisture sensitivity is discussed.

关键词： Moisture sensitive material Copper tetrasulfonato-phthalocyanine Surface pho-tovoltage spectroscopy