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Securing Forwarding Layers from Eavesdropping Attacks Using Proactive Approaches

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Computers, Materials & Continua 2024年第4期79卷 563-580页

作者： jiajun Yan Ying Zhou Anchen dai Tao Wang School of Electronics and Communication Engineering Sun Yat-sen UniversityShenzhen518107China

As an emerging network paradigm,the software-defined network(SDN)finds extensive application in areas such as smart grids,the Internet of Things(IoT),and edge *** forwarding layer in software-defined networks is susceptible to eavesdropping *** hopping is amoving target defense(MTD)technology that is frequently employed to resist eavesdropping *** the traditional route hopping technology,both request and reply packets use the same hopping *** an eavesdropping attacker monitors the nodes along this path,the risk of 100%data leakage becomes *** this paper,we present an effective route hopping approach,called two-day different path(TDP),that turns communication paths into untraceable moving *** technology minimizes the probability of data leakage by transmitting request data and reply data through different ***,a brief introduction to the network model and attack model involved in this paper is ***,the algorithm and processingmethod of the TDP are ***,the paper proposes three differentmetrics tomeasure the effectiveness of the proposed ***,theoretical analysis and simulation results show that the TDP can effectively reduce the percentage of data exposure,decrease eavesdropping attack success probability,and improve the unpredictability of the path.

关键词： Route hopping moving target defense software-defined network two-way different path metrics

The construction of pseudo-Janus silica/surfactant assembly and their application to stabilize Pickering emulsions and enhance oil recovery

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Frontiers of Chemical Science and Engineering 2022年第7期16卷 1101-1113页

作者： Han Jia jiajun dai Tingyi Wang Yingbiao Xu Lingyu Zhang Jianan Wang Lin Song Kaihe Lv Dexin Liu Pan Huang Shandong Key Laboratory of Oilfield Chemistry School of Petroleum EngineeringChina University of Petroleum(East China)Qingdao 266580China Key Laboratory of Unconventional Oil&Gas Development(China University of Petroleum(East China)) Ministry of EducationQingdao 266580China Technology Inspection Center Shengli Oilfield CompanySINOPECDongying 257000China Department of Chemical and Materials Engineering University of Alberta EdmontonAB T6G 1H9Canada

Nanoparticles with high surface energy and chemical activity have drawn substantial attention in petroleum industry. Recently, Janus nanoparticles exhibited tremendous potential in enhanced oil recovery (EOR) due to their asymmetric structures and properties. In this study, a series of amphiphilic pseudo-Janus@OTAB (PJ@C18) nanoparticles with different concentrations of stearyltrimethylammoium bromide (OTAB) were successfully fabricated. The structures and properties of PJ@C18 were characterized by Fourier transform infrared spectroscopy and ζ-potential measurements. Based on the emulsification experimental results, the interaction models and the self-assembly behavior between hydrophilic nanoparticles (SiO_(2)@NH_(2)) and OTAB molecules at the oil/water interface were proposed, which was further confirmed via the measurements of the contact angle and dynamic interfacial tension. Interestingly, it was found that the change of pH value from 7.5 to 4.0 caused the type reversal of the PJ@C18-1000 stabilized Pickering emulsions. Furthermore, the PJ@C18-1000 stabilized Pickering emulsion system with excellent salt and temperature tolerances (10000 mg∙L^(–1), 90℃) significantly improved the oil recovery in the single-tube (more than 17%) and double-tube (more than 25%) sand pack model flooding tests. The findings of this study could help to better understand the construction mechanism of pseudo-Janus silica/surfactant assembly and the potential application of PJ@C18-1000 stabilized Pickering emulsions for EOR.

关键词： Janus nanoparticles surfactant double phase inversion self-assembly enhanced oil recovery

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基于智能化平台的防误管控平台应用

上海大中型电机 2024年第2期 47-49页

作者：代佳俊吴国栋黄奎皓焦维亮彭冬丽雅砻江流域水电开发有限公司成都610051

目前微机防误系统存在一些技术限制,不能满足未来智能化电站趋势下的防误功能。为此本文介绍基于某电站智能化平台的防误管控平台应用,实现接地状态采集、检修防误、二次防误、智能校核、智能成票、智能解锁等功能,解决了目前微机防误... 详细信息

目前微机防误系统存在一些技术限制,不能满足未来智能化电站趋势下的防误功能。为此本文介绍基于某电站智能化平台的防误管控平台应用,实现接地状态采集、检修防误、二次防误、智能校核、智能成票、智能解锁等功能,解决了目前微机防误功能不完善,以及检修作业、二次操作、接地管理、解锁操作等存在的防误问题。

关键词：智能化防误管控平台电站防误系统

Asymmetric side-chain engineering of organic semiconductor for ultrasensitive gas sensing

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Chinese Chemical Letters 2024年第3期35卷 428-433页

作者： Xiaoying Ma Xiaojuan dai Lanyi Xiang jiajun Chang Danfeng Zhi Haozhen Zhao Zhenjie Ni Ye Zou Xike Gao Fengjiao Zhang School of Chemical Sciences University of Chinese Academy of SciencesBeijing 100049China Laboratory of Organic Solids Institute of ChemistryChinese Academy of SciencesBeijing 100190China Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules Shanghai Institute of Organic ChemistryChinese Academy of SciencesShanghai 200032China Binzhou Institute of Technology Binzhou 256606China

Molecular structure of organic semiconductor plays a critical role in determining the performance and functionality of organic electronic devices,by optimizing the electrical,optical and physicochemical *** alkyl chains are fundamental units in tailering the solubility and assemblability,among which the asymmetric properties have been reported as key element for controlling the packing motifs and intrinsic charge ***,we expanded the scope of molecular asymmetry dependent sensing features based on a new series of naphthalene diimides(NDI)-based derivatives substituted with a same branching alkyl chain but various linear-shaped alkyl chains(Cn-).A clear molecular stacking change,from head-to-head bilayer to head-to-tail monolayer packing model,is observed based on the features of anisotropic molecular interactions with the change in the chain *** importantly,a unique LUMO level shift of 0.17 eV is validated for NDI-PhC4,providing a record sensitivity up to 150%to 0.01 ppb ammonia,due to the desired molecular reactivity and device amplification *** results indicate that asymmetric side-chain engineering opens a route for breath healthcare.

关键词： Organic thin film transistor Asymmetric side chain Gas sensing Molecular stacking Energy level manipulating

基于运动矢量场的混合高斯建模的背景分离方法

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微计算机信息 2006年第8S期22卷 197-198,69页

作者：戴佳骏周军上海交通大学

本文提出了一种全新的运动图像序列背景分离方法,该方法在对原始图像预处理后进行运动搜索,得到图像的运动矢量图,然后通过对其进行混合高斯建模实现图像的背景分离。

关键词：背景分离运动矢量场混合高斯模型

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智能算法在中文数据集上的文本匹配训练方法

集成电路应用 2022年第5期39卷 28-31页

作者：徐盛戴佳骏李昱辰翼健(上海)信息科技有限公司上海200050

分析表明,医学中应用大量使用自然文本语言,为方便计算机分析,往往需要对其中的关键信息进去抽取,并将其表达文字规范化,从而使文本匹配成为广泛关注的技术问题。基于深度学习技术,阐述embedding表达的方案,迭代演进的数据扩展等,提出... 详细信息

分析表明,医学中应用大量使用自然文本语言,为方便计算机分析,往往需要对其中的关键信息进去抽取,并将其表达文字规范化,从而使文本匹配成为广泛关注的技术问题。基于深度学习技术,阐述embedding表达的方案,迭代演进的数据扩展等,提出一种文本匹配的模型框架和数据扩展方法,通过多次少量的增量标注大幅度扩展可靠标签数据,使得模型的准确率大幅提升,从而满足应用要求。

关键词：智能算法中文数据文本匹配训练标签数据

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页岩油气开采对地下水污染研究现状与动向

同济大学学报（自然科学版） 2024年第5期52卷 796-804页

作者：邹佳婕代朝猛韩跃鸣胡佳俊张亚雷刘曙光周烺同济大学土木工程学院上海200092 上海大学生命科学学院上海200444 同济大学环境科学与工程学院上海200092 德克萨斯大学奥斯汀分校土木、建筑和环境工程系奥斯汀TX 78712

页岩油和页岩气开采过程产生的大量废料,如果不经过处理,将对地下水造成污染。首先,介绍了页岩油气的分布和赋存机理,以及地面干馏、水平钻井和水力压裂等开采技术;然后,阐述了页岩油气在现场准备、钻井压裂、采油采气等不同开采环节中... 详细信息

页岩油和页岩气开采过程产生的大量废料,如果不经过处理,将对地下水造成污染。首先,介绍了页岩油气的分布和赋存机理,以及地面干馏、水平钻井和水力压裂等开采技术;然后,阐述了页岩油气在现场准备、钻井压裂、采油采气等不同开采环节中的主要污染源;进而讨论了页岩油气开采中主要的地下水污染物,分别是有机污染物、重金属和放射性物质,同时阐述了其带来的地下水污染长期性、隐蔽性和差异性的特点;最后,从技术改进和废料处理等方面对页岩油气开采对地下水污染的防治手段进行了展望。

关键词：页岩油页岩气地下水污染水力压裂水平钻井

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钙质砂粘性土的渗透特性

洛阳理工学院学报（自然科学版） 2022年第4期32卷 28-32页

作者：朱学敏代佳骏马露肖昕迪安徽科技学院建筑学院安徽蚌埠233000

研究了孔隙比、钙质砂含量、不均匀系数与曲率系数对不同钙质砂含量下粘性土渗透系数的影响规律。土样渗透系数与10^(e)(e为孔隙比)之间呈现较好的线性关系,且两者的相关性程度较大;渗透系数随着钙质砂含量的增加而显著增加,钙质砂含量... 详细信息

研究了孔隙比、钙质砂含量、不均匀系数与曲率系数对不同钙质砂含量下粘性土渗透系数的影响规律。土样渗透系数与10^(e)(e为孔隙比)之间呈现较好的线性关系,且两者的相关性程度较大;渗透系数随着钙质砂含量的增加而显著增加,钙质砂含量对渗透系数的影响变大会造成渗透系数数量级的变化;土样不均匀系数与曲率系数对土样渗透系数具有较好的相关性。

关键词：渗透系数钙质砂孔隙比不均匀系数曲率系数

政治联系、隐性激励与企业价值——以民营企业在职消费为例

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会计与经济研究 2017年第3期31卷 56-71页

作者：张奇峰戴佳君樊飞上海立信会计金融学院会计学院上海201620 上海应用技术大学经济与管理学院上海201418 上海财经大学会计学院上海200233

以民营企业在职消费为例,考察政治关联如何影响隐性激励及企业价值。研究发现,相对于无政治联系的民营企业,有政治联系的民营企业在职消费更低;民营企业的在职消费对企业价值具有负面影响,而政治联系削弱了在职消费对民营企业价值的负... 详细信息

以民营企业在职消费为例,考察政治关联如何影响隐性激励及企业价值。研究发现,相对于无政治联系的民营企业,有政治联系的民营企业在职消费更低;民营企业的在职消费对企业价值具有负面影响,而政治联系削弱了在职消费对民营企业价值的负面影响。总体来看,民营企业的政治联系有助于节约企业的交易成本与减少政府的利益侵占,从而提升了企业价值。

关键词：政治联系隐性激励在职消费企业价值民营企业