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Methane-air explosion pressures in cylindrical interconnected containers with different dimensions

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Emergency Management Science and Technology 2022年第1期2卷 148-158页

作者： Chendi Lin Chuipeng Liu Kai Zhang Zhirong Wang Jiangsu Key Laboratory of Urban and Industrial Safety College of Safety Science and EngineeringNanjing Tech UniversityNanjing 210009China

The characteristics of methane-air explosion in interconnected containers with different dimensions are studied in this paper,and the prediction models are *** explosion apparatus consists of two cylindrical containers and a connecting pipe,and three structure parameters are selected as influencing factors for the *** explosion pressure,the maximum rate of pressure rise and pressure growth index under different conditions are compared by changing the volume ratio(V_(1)/V_(2)),the length of the pipe,and the inner diameter of the *** the experiment,the combustion and explosion of gas developed from the main container to the auxiliary *** different size effect conditions,the maximum explosion pressure in the secondary container was always higher than the maximum explosion pressure in the primary *** maximum explosion pressure and the maximum rate of pressure rise in the primary and secondary containers both increase with increasing pipe *** an increase in the pipe diameter,the maximum explosion pressure and the maximum rate of pressure rise both decrease *** the volume ratio changes,the parameters such as the maximum explosion pressure are also affected by the volume changes of the containers at both ***,the explosion parameters in both connected containers do not show a single development trend with the increase of the volume *** practical application,in order to reduce the explosion intensity and protect the device,largediameter pipes should be used and the volume ratio should be reduced.

关键词： dimensions cylindrical explosion

Speech Dictation System Based on Character Recognition

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国际计算机前沿大会会议论文集 2021年第1期 380-392页

作者： Wenjun Lu Yanqing Wang Longfei Huang College of Information Engineering Nanjing Xiaozhuang UniversityNanjing 211171China

To solve students’ dictation problems, a speech dictation system basedon character recognition is proposed in this paper. The system applied offlinehandwritten Chinese character recognition technology, denoised the imagethrough Gaussian filter, segmented the text through projection method, and convertedthe image to text through OCR technology. The straight line mark in thepicture was detected by Hough transform technology, and then SKB-FSS algorithmand WST algorithm were used for speech synthesis. Experiments show thatthe system can effectively assist students in dictation.

关键词： Character recognition Speech synthesis Hough transform Feature extraction Image preprocessing

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Preface

Science China Chemistry 2011年第8期54卷 1155-1156页

作者：陈洪渊 HuangXian Ju Chinese Acad Sci Beijing 100864Peoples R China nanjing Univ NanjingPeoples R China Univ Montreal MontrealPQ H3C 3J7Canada

The 21st century is witnessing rapid progress in the areas of life science and biotechnology. It is therefore increasingly important to detect and quantify biologically essential mol-ecules not only in scientific rese... 详细信息

关键词：生物技术领域序言食品加工业生命科学 MOL

基于ZnS增透膜的顶发射白光有机发光二极管

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物理学报 2012年第8期61卷 432-439页

作者：陈淑芬邵茗郭旭钱妍石乃恩解令海杨洋黄维南京邮电大学信息材料与纳米技术研究院江苏省有机电子与信息显示重点实验室南京210046

顶发射白光有机发光二极管(TEWOLED)在白光照明和全彩显示中有着良好的应用前景,克服顶发射器件中的微腔效应是制备光电性能良好的TEWOLED的前提.使用具有高折射率的ZnS作为增透膜改善金属阴极在蓝光波段的透射率,降低其反射性,从而有... 详细信息

顶发射白光有机发光二极管(TEWOLED)在白光照明和全彩显示中有着良好的应用前景,克服顶发射器件中的微腔效应是制备光电性能良好的TEWOLED的前提.使用具有高折射率的ZnS作为增透膜改善金属阴极在蓝光波段的透射率,降低其反射性,从而有效抑制了微腔的影响.同时利用转移矩阵理论和宽角干涉方法分别对阴极结构和蓝光发光层位置进行了优化,最终获得了高效、色纯度良好、色度随视角变化小的TEWOLED.最高亮度和效率分别达到9213 cd/m^2和3 cd/A,色坐标位于白光区且接近白光等能点,同时具有良好的视角稳定性,在0°-60°范围内色坐标仅变化(0.02,0).

关键词：白光有机发光二极管顶发射增透膜转移矩阵理论

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Preface

Journal of Computer Science & Technology 2011年第3期26卷 373-374页

作者： Edwin Hsing-Mean Sha Department of Computer Science Erik Jonsson School of Eng.& C.S.The University of Texas at Dallas

Multi-core processor brings a major technical innovation in computing hardware. The leap from single-core to multi-core technology has permanently altered the concept about computing. Embedded devices with multi-core technology will rapidly spread throughout the world, and the shift from single-core to multi-core posts a lot of challenges. This special section aims to address some of these challenges by including three invited papers and six regular papers.

关键词： SysML Preface

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Preface

Progress in Natural Science:Materials International 2021年第6期31卷 783-784页

作者： Tao Deng Yongfeng Mei the Editorial Board of Progress in Natural Science:Materials International 2. Chinese MRS 3. the Commission on Development of the International Union of Materials Research Societies (IUMRS) the Department of Materials Science at Fudan university (China)

It has been 10 years since the journal-“Progress in Natural Science:Materials International”(PNSMI)-co-sponsored by Chinese Materials Research Society(C-MRS) and International Union of Materials Research Societies(IUMRS), was renamed in 2010. Materials science, one of the traditional science disciplines in China,

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