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Synthesis of graphene quantum dots for their supramolecular polymorphic architectures

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Nano Research 2021年第4期14卷 1228-1231页

作者： Weifeng Chen Guo Lv Qiyun Zhou jialu shen Jie Cao Xiang Liu Zhongxu Dai Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials College of Materials and Chemical EngineeringChina Three Gorges UniversityYichang 443002China

How to regulate the supramolecular structures in the assembly of graphene quantum dots(GQDs)is still a great challenge to be ***,the GQDs of 1-3 layers with high quality are synthesized from the new precursor m-trihydroxybenzene in a green *** importantly,a strategy for designing the supramolecular structures of GQDs is demonstrated,and the novel supramolecular morphologies of GQDs have been constructed for the first ***,the supramolecular morphologies of GQDs can be well controlled by regulating the preparation conditions,and the formation mechanism of the branch-like supramolecular structure has been explained by the the diffusion-limited aggregation(DLA)*** work not only develops a new precoursor to synthesize GQDs,but also opens up an effective route toform the polymorphic supermolecules,thus greatly facilitating their potential applications.

关键词： graphene quantum dots supermolecule m-trihydroxybenzene synthesis the diffusion-limited aggregation

Experimental investigations on the fluid flow mechanism in porous media of enhanced oil recovery by alkli/surfactant/polymer flooding

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Science China(Technological Sciences) 2005年第4期48卷 454-467页

作者： WANG jialu shen Pingping CHEN Yongzhong ZHANG Zubo JIA Xu TIAN Yuling Research Institute of Petroleum Exploration and Development Beijing 100083 China Research Institute of Petroleum Exploration and Development Beijing 100083 China Research Institute of Petroleum Exploration and Development Beijing 100083 China Research Institute of Petroleum Exploration and Development Beijing 100083 China Research Institute of Petroleum Exploration and Development Beijing 100083 China Research Institute of Petroleum Exploration and Development Beijing 100083 China

The fluid flow mechanism in porous media of enhanced oil recovery by Alkli/ Surfactant/Polymer (ASP) flooding is investigated by measuring production performance, pressure distribution and saturation distribution through installing differential pressure transducers and saturation measuring probes in a physical model of vertical heterogeneous reservoir. The fluid flow variation in porous media is the main reason of enhanced oil recovery of ASP flooding. The pressure field and saturation field are nonlinearly coupled together and the interaction between them results in the fluid flow variation in the reservoir. In a vertical heterogeneous reservoir, the ASP agents initially flow in the high permeability layers because the resistance in the high permeability layer is increased under the physical and chemical action of adsorption, retention and emulsion. ASP flooding displaces out not only the residual oil in the high permeability layer, but also the remaining oil in the low and the middle permeability layers by increasing swept volume and displacing efficiency.

关键词： ASP flooding, vertical heterogeneous reservoir, enhanced oil recovery, fluid flow mechanism in porous media.

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沸石鞣透明皮革的制备及荧光防伪探索

中国皮革 2024年第9期53卷 9-16,21页

作者：申佳露林炜李银生温会涛辜海彬四川大学制革清洁技术国家工程实验室四川成都610065 四川大学皮革化学与工程教育部重点实验室四川成都610065 兴业皮革科技股份有限公司福建省皮革绿色设计与制造重点实验室福建晋江362271

本文采用“自上而下”的制备策略,结合“浸渍-聚合填充”工艺,以沸石鞣绵羊皮(ZSL)为原料,成功制备出沸石鞣基透明皮革(ZSTL)。着重探究了ZSL的厚度、染料的种类、染料的用量对ZSTL透明性和机械性能的影响,同时考察了ZSTL的细胞毒性和... 详细信息

本文采用“自上而下”的制备策略,结合“浸渍-聚合填充”工艺,以沸石鞣绵羊皮(ZSL)为原料,成功制备出沸石鞣基透明皮革(ZSTL)。着重探究了ZSL的厚度、染料的种类、染料的用量对ZSTL透明性和机械性能的影响,同时考察了ZSTL的细胞毒性和规模化制备工艺的可行性。结果表明:ZSTL具有较高的透明性和拉伸强度,即使由1.2 mm厚度的ZSL制备的ZSTL在550 nm波长下的透过率也超过了67.4%,且ZSTL的最大断裂拉伸强度达到了10.35 MPa,韧性为1054 kJ/m^(3);染料对ZSTL透明性的影响较小,它的引入能提升ZSTL的机械性能,最大断裂拉伸强度达到了12.69 MPa,韧性为1501 kJ/m^(3);ZSTL并未表现出细胞毒性,即使在100%的浸提浓度下,细胞活性依然高于80%。利用该工艺可以成功制备面积为600 cm^(2)的ZSTL,这为ZSTL的规模化生产提供了切实可行的方案。此外,采用荧光CQDs可以在ZSTL上构筑出长期稳定的防伪标签,且具有制备光致变色透明皮革的潜力。

关键词：透明皮革原位聚合铬革屑碳量子点荧光防伪

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Design,preparation,and characterization of a novel ZnO/CuO/Al energetic diode with dual functionality:Logic and destruction

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Defence Technology（防务技术） 2024年第4期34卷 57-68页

作者： jialu Yang Jiaheng Hu Yinghua Ye Jianbing Xu Yan Hu Ruiqi shen School of Chemistry and Chemical Engineering Nanjing University of Science and TechnologyNanjing 210094China Micro-Nano Energetic Devices Key Laboratory of MIIT Nanjing 210094China Institute of Space Propulsion Nanjing University of Science and TechnologyNanjing 210094China

Self-destructing chips have promising applications for securing *** paper proposes a new concept of energetic diodes for the first time,which can be used for self-destructive chips.A simple two-step electrochemical deposition method is used to prepare ZnO/CuO/Al energetic diode,in which N-type ZnO and P-type CuO are constricted to a PN *** paper comprehensively discusses the material properties,morphology,semiconductor characteristics,and exploding performances of the energetic *** results show that the energetic diode has typical rectification with a turn-on voltage of about 1.78 V and a reverse leakage current of about 3×10^(-4)*** a constant voltage of 70 V loads to the energetic diode in the forward direction for about 0.14 s or 55 V loads in the reverse direction for about 0.17 s,the loaded power can excite the energetic diode exploding and the current rises to about100 *** to the unique performance of the energetic diode,it has a double function of rectification and *** energetic diode can be used as a logic element in the normal chip to complete the regular operation,and it can release energy to destroy the chip accurately.

关键词： Energetic diode ZnO—CuO—Al thermite ZnO/CuO PN junction Electrical explosion performance Self-destructing chips

A Review on the Security of the Ethereum-Based DeFi Ecosystem

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Computer Modeling in Engineering & Sciences 2024年第4期139卷 69-101页

作者： Yue Xue Dunqiu Fan shen Su jialu Fu Ning Hu Wenmao Liu Zhihong Tian Cyberspace Institute of Advanced Technology Guangzhou UniversityGuanzhou510000China Innovation Center NSFOCUS Inc.Beijing100089China Engineering Research Center of Integration and Application of Digital Learning Technology Ministry of EducationBeijing100816China

Decentralized finance(DeFi)is a general term for a series of financial products and *** is based on blockchain technology and has attracted people’s attention because of its open,transparent,and intermediary *** them,the DeFi ecosystem based on Ethereum-based blockchains attracts the most ***,the current decentralized financial system built on the Ethereum architecture has been exposed to many smart contract vulnerabilities during the last few ***,we believe it is time to improve the understanding of the prevailing Ethereum-based DeFi ecosystem security *** that end,we investigate the Ethereum-based DeFi security issues:1)inherited from the real-world financial system,which can be solved by macro-control;2)induced by the problems of blockchain architecture,which require a better blockchain platform;3)caused by DeFi invented applications,which should be focused on during the project *** on that,we further discuss the current solutions and potential directions ofDeFi *** to our research,we could provide a comprehensive vision to the research community for the improvement of Ethereum-basedDeFi ecosystem security.

关键词： Blockchain smart contract decentralized finance DeFi security

Sensitive humidity sensor based on moisture-driven energy generation

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Nano Research 2024年第6期17卷 5578-5586页

作者： Qingchao Ni Qing Lou Chenglong shen Guangsong Zheng Runwei Song Jingnan Hao jialu Liu Jinyang Zhu Jinhao Zang Lin Dong Chong-Xin Shan Henan Key Laboratory of Diamond Optoelectronic Materials and Devices Key Laboratory of Materials PhysicsMinistry of Educationand School of Physics and MicroelectronicsZhengzhou UniversityZhengzhou 450052China State Centre for International Cooperation on Designer Low-Carbon&Environmental Materials and School of Materials Science and EngineeringZhengzhou UniversityZhengzhou 450001China

The emergence of novel self-powered humidity sensors has attracted considerable attention in the fields of smart electronic devices and personal ***,self-powered humidity sensors have been fabricated using a moisture-driven energy generation(MEG)device based on asymmetric tubular graphitic carbon nitride(g-CN)films prepared on anodized aluminum(AAO)*** a relative humidity(RH)of 96%,the MEG device can provide an open-circuit voltage of 0.47 V and a short-circuit current of 3.51μA,with a maximum output power of 0.08μ*** inherent self-powered ability and humidity response via current variation,an extraordinary response of 1.78×106%(41%-96%RH)can be gained from the MEG *** possible power generation mechanism is that g-CN/AAO heterostructure can form ion gradient and diffusion under the action of moisture to convert chemical potential into electrical potential,evoking a connaturally sensitive response to ***-powered respiration monitoring device based on the sensor is designed to monitor human movement(sitting,warming up,and running)and sleep status(normal,snoring,and apnea),maintaining excellent stability during cumulative 12-h respiration *** self-powered humidity sensing technology has promising potential for extensive integration into smart electronic and round-the-clock health monitoring devices.

关键词： graphitic carbon nitride moisture-driven energy generation humidity sensor respiration monitoring

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小热昏唱卖梨膏糖

上海戏剧 2007年第11期 37-40页

作者：沈嘉禄

逛城隍庙，从华宝楼前面的中心广场往北穿过，就来到上海梨膏糖商店，一块黑底金字招牌高悬着，说给你听听：这家老字号创建于咸丰五年，也就是1855年，至今已有一百五十多个年头啦。那会儿，宫里的叶赫那拉氏还没有被封为懿贵妃呢，垂... 详细信息

逛城隍庙，从华宝楼前面的中心广场往北穿过，就来到上海梨膏糖商店，一块黑底金字招牌高悬着，说给你听听：这家老字号创建于咸丰五年，也就是1855年，至今已有一百五十多个年头啦。那会儿，宫里的叶赫那拉氏还没有被封为懿贵妃呢，垂帘听政更是后来的事，世界上还没有光绪的影子，大清国刚败在英国人的大炮利舰下，

关键词：糖梨叶赫那拉氏中心广场金字招牌城隍庙老字号英国人

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月份牌的妖魅幻境

档案春秋 2008年第4期 57-58页

作者：沈嘉禄

前些天,上海市收藏协会在三山会馆举办一个名为《花样年华》海上年俗展,主题是老年画和老月份牌。上海民间收藏家张文标提供了自己穷十几年精力搜罗的三百多张老年画和老月份牌,其中有很少露面的上海旧校场年画和近年来形成泛滥之势的... 详细信息

前些天,上海市收藏协会在三山会馆举办一个名为《花样年华》海上年俗展,主题是老年画和老月份牌。上海民间收藏家张文标提供了自己穷十几年精力搜罗的三百多张老年画和老月份牌,其中有很少露面的上海旧校场年画和近年来形成泛滥之势的月份牌。

关键词：月份牌市民场景商品电影美术地方文化海派文化上海市年画海派画家郑曼陀幻境

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“那些事”,连缀成大历史的注脚

档案春秋 2011年第7期 62-63页

作者：沈嘉禄

这些年来,尤其是今年建党九十周年和辛亥革命一百周年两个重大节庆活动前期,历史类图书再次燃烧起读者的激情。更大的背景,我想应该是学术环境进一步宽松,民间话语的进一步活跃,特别是北京高层也认识到应该以包容心对待"异质思维"。这... 详细信息

这些年来,尤其是今年建党九十周年和辛亥革命一百周年两个重大节庆活动前期,历史类图书再次燃烧起读者的激情。更大的背景,我想应该是学术环境进一步宽松,民间话语的进一步活跃,特别是北京高层也认识到应该以包容心对待"异质思维"。这个历史性变化说明,中国社会正从一种声音到百花齐放,从千人一面到丰富多元,反映出思想的极

关键词：文章中华人民共和国读者《老照片》