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Effects of Formulation Parameters and Process Variables on the Properties of Granules Obtained by Reactive Granulation

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Transactions of Tianjin University 2018年第3期24卷 224-233页

作者： Leping Dang xiaojun lang Xu Li Hongyuan Wei School of Chemical Engineering and Technology Tianjin University

In this work, granulation between dodecyl-benzenesulfonic acid and sodium carbonate was investigated in a laboratory-scale high shear mixer. The effects offormulation parameters and process variables, including primary carbonate size, binder content, impeller speed, and operating temperature, were correlated to the properties ofthe product granules. Design ofexperiment and analysis ofvariance were combined to analyze the experimentaldata, and results showed that larger granule sizes with fewer fine particles can be obtained by employing higher binder contents and larger sodium carbonate sizes. The shear force ofthe impeller can extensively break oversized granules. The binder content exerted a contrasting effect on the flowability ofgranules formed with two kinds ofsodium carbonate, likely because ofdifferences in the liquid saturation ofthe solids. The dissolution rate determined by in-line size analysis showed that high binder contents were beneficialto dissolution performance, and the relationships between Hunter color and tested parameters were evaluated. The results ofthis work can be used as a reliable guidance for process controland optimization in powder detergent manufacturing.

关键词： Dry neutralization Granulation Size Flowability Dissolution rate Color

Regime Map of Dry Neutralization Agglomeration Process Containing Non-Reactive Ingredient on a Laboratory Scale

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Transactions of Tianjin University 2019年第1期25卷 66-73页

作者： Leping Dang Xu Li Jinsheng Fu xiaojun lang Hongyuan Wei School of Chemical Engineering and Technology Tianjin University Procter and Gamble Technology (Beijing) Co. Ltd

This study described a regime map for dry neutralization agglomeration. Based on the map, the effects of selected key parameters, such as ingredient composition, operation temperature, agitation speed, and size of Na_2CO_3 particles, were investigated using a laboratory-scale mixer, and properties of the agglomeration product were analyzed, including particle size distribution, Hunter color, and flowability. Torque curves evolving during the process were correlated with the system flowability. Three distinguishable regimes were indicated, dry, wet, and transitional, and the agitation speed was found to have a different influence on the agglomeration process for the three regimes. Furthermore, the influence of temperature on reactive agglomeration significantly differed from that in agglomeration processes in which the binder was non-reactive.

关键词： Regime map Dry neutralization Agglomeration Non-reactive particles

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唯物史观视域下的“两山论”意蕴探析

中共成都市委党校学报 2020年第6期31卷 35-41页

作者：郎晓军中国人民大学马克思主义学院北京100872

“绿水青山就是金山银山”是习近平生态文明思想的科学理念,揭示了经济发展和生态环境保护的辩证统一要求,既是对马克思主义人与自然关系理论的继承,也是对当代社会主义国家经济发展与环境保护辩证关系的新发展。全面系统分析“两山论... 详细信息

“绿水青山就是金山银山”是习近平生态文明思想的科学理念,揭示了经济发展和生态环境保护的辩证统一要求,既是对马克思主义人与自然关系理论的继承,也是对当代社会主义国家经济发展与环境保护辩证关系的新发展。全面系统分析“两山论”的科学意蕴,有利于拓展对马克思主义生态文明理论的认识,有利于正确把握人与自然关系的时代要求。

关键词： “两山论” 唯物史观政治经济学人与自然关系

未曾设想之路的开辟——论马克思、恩格斯劳动教育思想的科学形成与现实意义

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科学．经济．社会 2022年第2期40卷 25-36页

作者：郎晓军何韶华中国人民大学马克思主义学院宁夏大学经济管理学院

马克思、恩格斯的劳动教育思想来源于对空想社会主义思想家和古典政治经济学家所开辟的两条道路初步汇合的批判和借鉴,在此基础上创立了科学的无产阶级劳动教育思想,它的科学形成是由社会生产发展和无产阶级斗争共同推动的。回顾这一过... 详细信息

马克思、恩格斯的劳动教育思想来源于对空想社会主义思想家和古典政治经济学家所开辟的两条道路初步汇合的批判和借鉴,在此基础上创立了科学的无产阶级劳动教育思想,它的科学形成是由社会生产发展和无产阶级斗争共同推动的。回顾这一过程,阐发其科学意涵,反思片面强调技术主义、理性主义的劳动教育观的经验教训,警惕资本逻辑对培育时代新人的不良影响,有利于坚持和发展马克思主义劳动教育思想,有利于在新时代更好地贯彻教育与生产劳动结合的社会主义教育原则,探索新时代劳动教育的创新途径,完善新时代中国特色社会主义教育体系,发展新时代中国特色社会主义教育事业,为实现“两个一百年”奋斗目标,实现中华民族伟大复兴的中国梦提供坚实保障。

关键词：马克思恩格斯劳动教育思想两条道路科学形成现实意义

基于新型城镇化发展理念的被撤并镇规划对策研究——以张家港市港口小城镇为例

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苏州科技大学学报（工程技术版） 2017年第2期30卷 62-67页

作者：郎小君朱建达苏州科技大学建筑与城市规划学院江苏苏州215011

在快速城镇化进程中我国撤并了大量的小城镇,其中部分被撤并镇出现了不同程度的衰落。新型城镇化的推进为这些小城镇发展带来了新机遇,同时也提出了新要求和新高度;要实现撤并镇的新发展,必须依据新型城镇化的理念,提出新的战略思路。... 详细信息

在快速城镇化进程中我国撤并了大量的小城镇,其中部分被撤并镇出现了不同程度的衰落。新型城镇化的推进为这些小城镇发展带来了新机遇,同时也提出了新要求和新高度;要实现撤并镇的新发展,必须依据新型城镇化的理念,提出新的战略思路。研究以张家港市港口小城镇为对象,分析其撤并后存续的优势和面临的困境,运用"创新、协调、绿色、开放、共享"的新型城镇化理念,在发展定位、功能组织、物质及环境建设方面提出发展对策。

关键词：发展理念新型城镇化被撤并镇规划对策港口小城镇

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中深孔爆破在临安市横畈轧石厂的应用

煤矿爆破 2008年第4期26卷 34-35页

作者：荣光富袁冬琴黄树峰朗小军浙江凯特化工有限公司浙江省嵊州市312459 绍兴光明爆破有限公司浙江省绍兴市312000 临安市安特爆破工程有限公司浙江省临安市311300

通过一次中深孔爆破实例,介绍了在土石方爆破中采用中深孔爆破的设计方案和施工工艺,为中深孔爆破提供较好的设计施工参考。

关键词：采矿中深孔爆破台阶爆破

A new image processing method for discriminating internal layers from radio echo sounding data of ice sheets via a combined robust principal component analysis and total variation approach

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Science China(Technological Sciences) 2014年第4期57卷 838-846页

作者： lang ShiNan ZHAO Bo LIU xiaojun FANG GuangYou Key Laboratory of Electromagnetic Radiation and Sensing Technology Chinese Academy of Sciences Institute of Electronics Chinese Academy of Sciences Graduate University of Chinese Academy of Sciences

Discriminating internal layers by radio echo sounding is important in analyzing the thickness and ice deposits in the Antarctic ice *** signal processing method of synthesis aperture radar(SAR)has been widely used for improving the signal to noise ratio(SNR)and discriminating internal layers by radio echo sounding data of ice *** method is not efficient when we use edge detection operators to obtain accurate information of the layers,especially the ice-bed *** paper presents a new image processing method via a combined robust principal component analysis-total variation(RPCA-TV)approach for discriminating internal layers of ice sheets by radio echo sounding *** RPCA-based method is adopted to project the high-dimensional observations to low-dimensional subspace structure to accelerate the operation of the TV-based method,which is used to discriminate the internal *** efficiency of the presented method has been tested on simulation data and the dataset of the Institute of Electronics,Chinese Academy of Sciences,collected during CHINARE *** results show that the new method is more efficient than the previous method in discriminating internal layers of ice sheets by radio echo sounding data.

关键词： robust principal component analysis (RPCA) total variation (TV) discriminating internal layers from radio echo sounding data of ice sheets conjugate gradient method

A Brief Review on Aerodynamic Performance of Wingtip Slots and Research Prospect

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Journal of Bionic Engineering 2021年第6期18卷 1255-1279页

作者： Dan Liu Bifeng Song Wenqing Yang xiaojun Yang Dong Xue Xinyu lang School of Aeronautics Northwestern Polytechnical UniversityXi’an710072China Research&Development Institute of Northwestern Polytechnical University in Shenzhen Shenzhen518057China Yangtze River Delta Research Institute of Northwestern Polytechnical University Taicang215400China

Wingtip slots,where the outer primary feathers of birds split and spread vertically,are regarded as an evolved favorable feature that could effectively improve their aerodynamic *** have inspired many to perform experiments and simulations as well as to relate their results to aircraft *** paper aims to provide guidance for the research on the aerodynamic mechanism of wingtip *** a review of previous wingtip slot research,four imperfections are put forward:vacancies in research content,inconsistencies in research conclusions,limitations of early research methods,and shortage of the aerodynamic mechanism *** this basis,further explorations and expansion of the influence factors for steady state are needed;more attention should be poured into the application of flow field integration method to decompose drag,and evaluation of variation in induced drag seems a more rational *** and kinematic parameters of wingtip slot structure in the unsteady state,as well as the flexibility of wingtips,should be taken into *** for the aerodynamic mechanism of wingtip slots,the emphasis can be placed on the study of the formation,development,and evolution of wingtip vortices on slotted ***,some research strategies and feasibility analyses are proposed for each part of the research.

关键词： Slotted wingtip Tip vortex Drag reduction Unsteady state Flexibility

Development of a poly(arylene sulfide sulfone)antibacterial electrospun film as a skin wound dressing application

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Journal of Innovative Optical Health Sciences 2022年第2期15卷 32-41页

作者： Xuzhi lang Zhurong Tang Zhimei Wei xiaojun Wang Shengru Long Gang Zhang Jie Yang Qingyu Lin Qingdao Benzo Chemical Company Limited Qingdao 266300 P.R.China Institute of Life Sciences Chongqing Medical University Chongqing 400016P.R.China Institute of Materials Science and Technology Analytical&Testing Center Sichuan University Chengdu 610065P.R.China State Key Laboratory of Polymer Materials Engineering(Sichuan University) Chengdu 610065P.R.China School of Mechanical Engineering Research Center of Analytical Instrumentation Sichuan University Chengdu 610065P.R.China

Tissue engineering has become a hot issue for skin wound healing because it can be used as an alternative treatment to traditional *** films have been widely used due to their excellent *** this work,an organic/inorganic composite poly(arylene sulfide sulfone)/ZnO/graphene oxide(PASS/ZnO/GO)nanofibrous film was fabricated with the ZnO nano-particles blending in an electrospun solution and post-treated with the GO *** optimal PASS/ZnO/GO nanofibrous film was prepared by 2%ZnO nanoparticles,3.0g/mL PASS electrospun solution,and 1%GO dispersion *** morphology,hydrophilicity,mechanical property,and cytotoxicity of the PASS/ZnO/GO nanofibrous film were character-ized by using scanning electron microscopy,transmission electron microscope,water contact angle,tensile testing,and a Live/Dead cell staining *** is founded that the PASS/ZnO/GO nanofibrous film has outstanding mechanical properties and no ***,the PASS/ZnO/GO nanofibrous film exhibits excellent antibacterial activity to both Escherichia coli and Staphylococcus *** all,this high mechanical property in the non-toxic and antibacterial nanofibrous film will have excellent application prospects in skin wound dressing.

关键词： Graphene oxide electrospinning antibacterial skin wound dressing