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Study on preparation,characterization and application of mixed-colorants thermochromic microcapsules

Particuology 2024年第5期88卷 89-97页

作者： Lan Zhou Jingpeng Ye Qinze Cai guojin Liu Mehran Dadgar Guocheng zhu Guoqing Zhang College of Textile Science and Engineering (International Institute of Silk) Zhejiang Sci-Tech UniversityHangzhou310018China School of Materials Science& Engineering Zhejiang Sci-Tech UniversityHangzhou310018China Department of Textile University of NeyshaburAdib BoulevardKhorasan Razavi ProvinceIran Zhejiang Charming Dyeing and Finishing Co. LtdJiaxing314500China Zhejiang Provincial Innovation Center of Advanced Textile Technology Shaoxing312000China

In order to expand the color-change range and make the discoloration temperature suitable for the daily textiles,a new formulation of mixed-colorants thermochromic core material is designed,in which crystal violet lactone(CVL)is the basic color former,bisphenol A(BPA)is the developer,especially the solvent-based dye and dodecyl dedecanoate are used as the extended dye and the solvent,*** electron microscope(SEM),differential scanning calorimeter(DSC)and thermogravimetric analyzer(TGA)were applied to study the morphology,encapsulation rate,non-isothermal crystallization behavior and thermal stability of the mixed-colorant thermochromic microcapsules(MCTMs)prepared by in-situ *** results show that MCTMs have good sphericity,uniform particle size,good thermal stability and the encapsulation rate can reach 86.73%.Under the non-isothermal conditions,the encapsulation of formaldehyde-melamine resin wall material can slightly reduce the crystallization rate of the solvent,but does not affect the relative crystallinity,thermal properties and discoloration sensitivity of the core *** the variety of ambient temperatures in the range of 20–35℃,the printed cotton fabrics with MCTMs could change color reversibly between different tones with good reliability and durability,and exhibit more gorgeous colors than the common thermochromic materials.

关键词： Thermochromic microcapsule Color-change range Phase-change material Crystallization behavior

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Novel methods by using non-vacuum insulated tubing to extend the lifetime of the tubing

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Frontiers in Energy 2015年第2期9卷 142-147页

作者： Chenglong ZHOU guojin zhu Yongxiang XU Jifei YU Xiaoliang ZHANG Hongzhi SHENG Institute of Mechanics Chinese Academy of Sciences Beijing 100190China CNOOC Research Center Beijing 100028 China

The analysis of the failure mechanics, namely hydrogen permeation of vacuum insulated tubing （VIT）, indicated that the failure of VIT could be decreased but could not be avoided. To solve this problem, some measures by using non-vacuum materials were proposed and analyzed in this paper. The results show that to fill the tubing with foam-glass beads or high pressure argon may lead to a good performance.

关键词： hydrogen permeation vacuum insulated tub-ing cyclic steam stimulation insulation material thermalconductivity foam-glass

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Deep-water Depositional Features of Miocene zhujiang Formation in Baiyun Sag,Pearl River Mouth Basin

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Acta Geologica Sinica(English Edition) 2013年第1期87卷 197-210页

作者： LI Yun ZHENG Rongcai YANG Baoquan zhu guojin GAO Boyu HU Xiaoqing State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Chengdu University of Technology China National Offshore Oil Corporation Research Center

Eleven lithofacies and five lithofacies associations were indentified in the Miocene zhujiang Formation on the basis of detailed core analysis. It could he determined that three depositional types developed, namely submarine fan, basin and deep-water traction current. Six microfacies were further recognized within the fan, including main channels in the inner fan, distributary channels in the middle fan, inter-channels, levees and the outer fan. The lower zhujiang Formation, mainly sandstone associations, was inner fan and inner-middle fan deposits of the basin fan and the slope fan. The middle part, mainly mudstone associations, was outer fan deposits. With the transgression, the submarine fan was finally replaced by the basinal pelagic deposits which were dominated by mudstone associations, siltstone associations, and deep-water limestone associations. During the weak gravity flow activity, the lower channels, the middle-upper outer fans and basin deposits were strongly modified by the deep-water traction current. The identification of the deep-water traction deposition in Miocene zhujiang Formation would be of great importance. It could be inferred that the deep- water traction current had been existing after the shelf-break formation since the Late Oligocene （23.8 Ma） in the Baiyun sag, influencing and controlling the sediment composition, the distribution, and depositional processes. It would provide great enlightenment to the paleo-oceanic current circulation in the northern South China Sea.

关键词： northern South China Sea Pearl River Mouth Basin Baiyun Sag zhujiang Formation,submarine fan

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Numerical Prediction and Analysis of Hydraulic Characteristics of Waterfall Scene for Application to Design Control

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Transactions of Tianjin University 2017年第3期23卷 277-288页

作者： Chao Wang Sherong Zhang Yun Li guojin zhu Bohui Pang Xiaofang Zheng State Key Laboratory of Hydraulic Engineering Simulation and Safety Tianjin UniversityTianjin 300072China School of Civil Engineering Tianjin UniversityTianjin 300072China State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering Hohai UniversityNanjing 210098China HYDROCHINA Kunming Engineering Corporation Kunming 650051China

The hydraulic characteristics of artificial waterfalls constitute an important research area for both academia and *** yet,the hydraulic parameters used in the hydraulic design of landscape waterfalls are not well understood for use in qualitative and quantitative *** to their complicated shapes and appearances,it remains a challenging problem to design or simulate realistic waterfall *** this paper,we present a hybrid model and an efficient numerical method for simulating the hydraulic characteristics of waterfalls and investigate the critical flow in waterfall design and the adherent flow *** fit empirical equations to predict the size and shape of different waterfall flow patterns to provide a basis for the design and construction of waterscapes in the real *** then apply our work to an artificial waterfall in Kraal Jiang River and the results demonstrate that our model achieves desirable control qualities and good agreement in a real-world application.

关键词： Artificial waterfall Nappe flow Computational fluid dynamics (CFD) Weir flow Numerical simulation

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Research on Cheating Detection Method of Programming Source Codes by Self-Organizing Maps

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中国电子商情·通信市场 2013年第1期 53-58页

作者： guojin zhu Le Liu

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The productivity evaluation model and its application for finite conductivity horizontal wells in fault block reservoirs

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Petroleum Science 2010年第4期7卷 530-535页

作者： Jiang Hanqiao Ye Shuangjiang Lei Zhanxiang Wang Xing zhu guojin Chen Minfeng Key Laboratory of Petroleum Engineering Ministry of Education China University of Petroleum Beijing 102249 China Research Institute of Petroleum Exploration and Development PetroChina Beijing 100083 China Research Institute of China National Offshore Oil Corporation Beijing 100027 China

It is very difficult to evaluate the productivity of horizontal wells in fault block reservoirs due to the influence of fault *** the basis of the method of images and source-sink theory,a semianalytical model coupling reservoir and finite conductivity horizontal wellbore flow dynamics was built,in which the influence of fault sealing was taken into *** distribution of wellbore flow and radial inflow profiles along the horizontal interval were also *** impact of the distance between the horizontal well and the fault on the well productivity was quantitatively *** on this analysis,the optimal distance between the horizontal well and the fault in banded fault block reservoirs could be *** to the field application,the relative error calculated by the model proposed in this paper is within ±15%.It is an effective evaluation method for the productivity of horizontal wells in fault block *** productivity of the horizontal well increases logarithmically as the distance between the horizontal well and the fault *** optimal distance between the horizontal well and the fault is 0.25-0.3 times the horizontal well length.

关键词： Fault block reservoir horizontal well finite conductivity productivity evaluation well location design

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可用于WLAN的双频MIMO天线设计

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电子元件与材料 2024年第1期43卷 115-120页

作者：李国金朱佳辉辽宁工程技术大学电子与信息工程学院辽宁葫芦岛125105

设计了一款可用于WLAN的双频MIMO天线。天线的正面为L型单极子,背面为金属接地板。通过在接地板上加载耦合枝节使天线具有双频特性。同时,为了天线的小型化,对耦合枝节进行了弯折处理,减小天线尺寸。在两个天线单元之间加载T型寄生枝节... 详细信息

设计了一款可用于WLAN的双频MIMO天线。天线的正面为L型单极子,背面为金属接地板。通过在接地板上加载耦合枝节使天线具有双频特性。同时,为了天线的小型化,对耦合枝节进行了弯折处理,减小天线尺寸。在两个天线单元之间加载T型寄生枝节和刻蚀矩形缝隙来提高天线的隔离度。使用电磁仿真软件和矢量网络分析仪对天线进行仿真和实测,结果表明:天线的工作频段为2.4~2.55 GHz和5.1~6.3 GHz,覆盖了WLAN的频段,同时在低频段内隔离度高于19 dB,高频段内隔离度高于25 dB。此外,天线的包络相关系数小于0.01且具有全向辐射特性。天线整体性能较好,可以满足WLAN的需求。

关键词： MIMO天线双频段无线局域网 L型单极子

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读者浏览空间的本体模型

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计算机工程与应用 2005年第20期41卷 209-211页

作者：谭锦燕朱国进东华大学计算机科学与技术学院计算机系上海200051

随着网络技术的发展,电子教程应运而生,然而目前的电子教程没有满足读者个性化浏览的要求。文章提出面向读者信息需求的浏览空间眼1演的读者信息需求本体模型,让读者的需求信息更好地让机器可理解,设想解决目前的电子教程对不同的读者... 详细信息

随着网络技术的发展,电子教程应运而生,然而目前的电子教程没有满足读者个性化浏览的要求。文章提出面向读者信息需求的浏览空间眼1演的读者信息需求本体模型,让读者的需求信息更好地让机器可理解,设想解决目前的电子教程对不同的读者提供相同的知识的问题。同时,文章给出该浏览空间的本体模型,满足读者个性化浏览的要求。

关键词：面向读者信息需求的浏览空间本体模型本体结构逻辑思维 OWL

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基于Ontology和描述逻辑推理的Web题目资源检索

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计算机工程 2006年第18期32卷 225-227页

作者：王宗纬朱国进赵浪波苏翔东华大学计算机科学与技术系上海200051

Web网上存在着大量题目资源,学生在学习过程中需要准确找到与其所学知识真正相吻合的题目。但是从题目的语言表述往往很难获得其语义信息,合适的题目难以找到。该文提出了一种基于Ontology和描述逻辑推理的Web题目资源检索方案。该方案... 详细信息

Web网上存在着大量题目资源,学生在学习过程中需要准确找到与其所学知识真正相吻合的题目。但是从题目的语言表述往往很难获得其语义信息,合适的题目难以找到。该文提出了一种基于Ontology和描述逻辑推理的Web题目资源检索方案。该方案通过为Web题目资源添加语义注释,并通过描述逻辑推理完成基于语义的题目资源检索,使学生获得与其所学知识语义相关的题目。采用OWL描述Ontology、使用推理机RACER实现描述逻辑推理。

关键词：本体论 OWL 描述逻辑 Web题目资源语义注释

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基于自然语言处理的算法知识名称发现

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计算机工程 2014年第12期40卷 126-131页

作者：朱国进郑宁东华大学计算机科学与技术学院上海201620

网络中的很多程序资源在知识概念上有内在的联系,却没有超链接将它们连接在一起。将网络程序资源中的算法知识名称获取出来,组织成一个算法知识专家库文件,用于识别程序设计资源所含的知识点,即可将程序设计资源按知识点相互联系。为了... 详细信息

网络中的很多程序资源在知识概念上有内在的联系,却没有超链接将它们连接在一起。将网络程序资源中的算法知识名称获取出来,组织成一个算法知识专家库文件,用于识别程序设计资源所含的知识点,即可将程序设计资源按知识点相互联系。为了自动获取程序资源中的算法知识名称,提出一种基于自然语言处理的算法知识名称发现方法。通过发现含有算法知识名称语句的字符串模式,从程序资源中提取可能含算法知识名称的字符串,从中找出最有可能出现在算法知识名称中的分词,并根据这些分词获取算法知识名称。实验结果表明,与原有人工整理出的算法知识名称集合相比,该方法新增了11.2%的算法知识点和13.6%的算法知识名称。

关键词：知识发现模式发现自然语言处理算法知识名称中文分词词性标注

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