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Remote sensing image encryption algorithm utilizing 2D Logistic memristive hyperchaotic map and SHA-512

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Science China(Technological Sciences) 2024年第5期67卷 1553-1566页

作者： LAI qiang LIU Yuan YANG Liang School of Electrical and Automation Engineering East China Jiaotong UniversityNanchang330013China

The two-dimensional Logistic memristive hyperchaotic map(2D-LMHM)and the secure hash SHA-512 are the foundations of the unique remote sensing image encryption algorithm(RS-IEA)suggested in this *** proposed map is formed from the improved Logistic map and the memristor,which has wide phase space and hyperchaotic range and is exceptionally excellent to be utilized in specific *** proposed image algorithm uses the permutation-assignment-diffusion *** generates two position matrices in a progressive manner to achieve an efficient random exchange of pixel positions,assignment is carried through on the image pixels of the permutated image to entirely remove the original image information,strengthening the relationship between permutation and diffusion,and loop diffusion in two different directions can use subtle changes of pixels to affect the whole *** random key and plain-image SHA-512 hash values are used to produce an additional key,which is then utilized to figure out the permutation parameters and the initial value of a chaotic *** experimental results with the average NPCR=99.6094%(NPCR:number of pixels change rate),average UACI=33.4638%(UACI:unified average changing intensity),100%pass rate of the targets in the test set,the average correlation coefficient is 0.00075,and the local information entropy is 7.9025,which shows that the algorithm is able to defend against a variety of illegal attacks and provide more trustworthy protection than some of the existing state-of-the-art algorithms.

关键词： chaos memristive hyperchaotic map remote sensing SHA-512 image encryption RS-IEA

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信用权保护的私法进路

北方法学 2022年第5期16卷 53-69页

作者：杜明强贵州大学法学院

信用兼具人格属性和财产价值,以信用利益为基础生成的信用权本质是一种新兴人格权,系民事主体依法享有的维护自身信用并排除他人侵害的权利。其权利主体具有普遍性、客体确定、内容完整,权利构成要素清晰,满足法权化的实质和形式要求。... 详细信息

信用兼具人格属性和财产价值,以信用利益为基础生成的信用权本质是一种新兴人格权,系民事主体依法享有的维护自身信用并排除他人侵害的权利。其权利主体具有普遍性、客体确定、内容完整,权利构成要素清晰,满足法权化的实质和形式要求。然因智能算法侵权冲击现行信用法制、信用评级引发数字身份歧视、失信联合惩戒机制的施行等正在给信用权保护带来新挑战,现行立法的附带性保护淡化信用权的独立性,司法的选择性救济难以有效护持信用主体的正当权益。立基于信用权的内在特质与特殊侵权样态,其保护理念与路径亟待更新。具体需在民法典体系下,确立以侵权法保护为中心的私法进路,通过规范信用权的法律构造、明确信用权作为具体的新兴人格权地位,确立其侵权责任构成、明晰其侵权责任承担方式、建立信用信息修复机制来实现对信用权的妥适保护。

关键词：信用权失信惩戒侵权责任私法保护

Statistical analysis and interpretation on lightning impulse breakdown voltages of ester liquids under varying field uniformity

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High Voltage 2024年第1期9卷 22-34页

作者： Haichuan Yu qiang Liu Zhongdong Wang Department of Electrical and Electronic Engineering The University of ManchesterManchesterUK Department of Engineering University of ExeterExeterUK

Ester liquids(ELs),as the alternative transformer liquids to the conventional mineral oils(MOs),have been increasingly used in power transformers with high voltage *** various properties,the lightning impulse breakdown voltages(LIBDVs)have been studied elaborately in the past two decades under different electric field *** electric field uniformities do have an effect on the breakdown characteristics,for example,breakdown mechanisms,polarity effects,and differences of LIBDV between ELs and MOs,which is quantitatively investigated based on the LIBDVs collected from the *** breakdown mechanism transition phenomenon between streamer initiation dominated breakdown and streamer propagation dominated breakdown has been reviewed ***,the transition field factor boundaries to observe the polarity effect on LIBDVs are taken at around 20 for ELs and 10 for ***,the transition field factor boundaries to observe the LIBDV distinctions between ELs and MOs are about 109 and 14 under positive and negative lightning impulse,*** systematic analysis and interpretation on the transition field factor boundaries among different phenomena can provide insights on insulation design of ELs filled power transformers.

关键词： field lightning breakdown

Transcriptomic and bioinformatics analysis of the mechanism by which erythropoietin promotes recovery from traumatic brain injury in mice

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Neural Regeneration Research 2024年第1期19卷 171-179页

作者： Weilin Tan Jun Ma Jiayuanyuan Fu Biying Wu Ziyu Zhu Xuekang Huang Mengran du Chenrui Wu Ehab Balawi qiang Zhou Jie Zhang Zhengbu Liao Department of Neurosurgery The First Affiliated Hospital of Chongqing Medical UniversityChongqingChina

Recent studies have found that erythropoietin promotes the recovery of neurological function after traumatic brain ***,the precise mechanism of action remains unclea *** this study,we induced moderate traumatic brain injury in mice by intrape ritoneal injection of erythro poietin for 3 consecutive *** sequencing detected a total of 4065 differentially expressed RNAs,including 1059 mRNAs,92 microRNAs,799 long non-coding RNAs,and 2115circular *** Encyclopedia of Genes and Genomes and Gene Ontology analyses revealed that the coding and non-coding RNAs that were differentially expressed after traumatic brain injury and treatment with erythropoietin play roles in the axon guidance pathway,Wnt pathway,and MAPK *** competing endogenous RNA networks showed that regulatory relationship between the differentially expressed non-coding RNAs and *** the axon guidance pathway was repeatedly enriched,the expression of Wnt5a and Ephb6,key factors in the axonal guidance pathway,was ***6 expression decreased and Wnt5a expression increased after traumatic brain injury,and these effects were reversed by treatment with erythro *** findings suggest that erythro poietin can promote recove ry of nerve function after traumatic brain injury through the axon guidance pathway.

关键词： axon guidance bioinformatics analysis competing endogenous RNA erythropoietin Gene Ontology Kyoto Encyclopedia of Genes and Genomes non-coding RNA RNA sequencing transcriptomics traumatic brain injury

Preparation of Self-limiting Heating Cables with Excellent Processability, Mechanical Properties and PTC Effect via Thermal and Electrical Treatments

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Chinese Journal of Polymer Science 2024年第4期42卷 511-520页

作者： Tian-Hao Yang Tong Wu qiang Fu State Key Laboratory of Polymer Materials Engineering College of Polymer Science and EngineeringSichuan UniversityChengdu610065China State Key Laboratory of Polymer Materials Engineering Polymer Research Institute of Sichuan UniversityChengdu610065China

Polymer/conductive filler composites have been widely used for the preparation of self-limiting heating cables with the positive temperature coefficient (PTC) effect. The control of conductive filler distribution and network in polymer matrix is the most critical for performance of PTC materials. In order to compensate for the destruction of the filler network structure caused by strong shearing during processing, an excessive conductive filler content is usually added into the polymer matrix, which in turn sacrifices its processability and mechanical properties. In this work, a facile post-treatment of the as-extruded cable, including thermal and electrical treatment to produce high-density polyethylene (HDPE)/carbon black (CB) cable with excellent PTC effect, is developed. It is found for the as-extruded sample, the strong shearing makes the CB particles disperse uniformly in HDPE matrix, and 25 wt% CB is needed for the formation of conductive paths. For the thermal-treated sample, a gradually aggregated CB filler structure is observed, which leads to the improvement of PTC effect and the notable reduction of CB content to 20 wt%. It is very interesting to see that for the sample with combined thermal and electrical treatment, CB particles are agglomerated and oriented along the electric field direction to create substantial conductive paths, which leads to a further decrease of CB content down to 15 wt%. In this way, self-limiting heating cables with excellent processability, mechanical properties and PTC effect have simultaneously been achieved.

关键词： Self-limiting heating cables Positive temperature coefficient Thermal treatment Electrical treatment

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地下水人工回灌水化学因素对生物堵塞的影响

中国环境科学 2022年第10期42卷 4658-4667页

作者：崔瑞娟杜新强冶雪艳吉林大学地下水资源与环境教育部重点实验室吉林长春130021

通过室内砂柱实验及扫描电镜,红外光谱,光电子能谱等技术,研究回灌水中离子强度及回灌过程中水-岩作用对细菌在饱和多孔介质中迁移及滞留的影响,揭示回灌过程中离子强度对介质生物堵塞演化规律及其作用机理的影响.结果表明,适宜的离子... 详细信息

通过室内砂柱实验及扫描电镜,红外光谱,光电子能谱等技术,研究回灌水中离子强度及回灌过程中水-岩作用对细菌在饱和多孔介质中迁移及滞留的影响,揭示回灌过程中离子强度对介质生物堵塞演化规律及其作用机理的影响.结果表明,适宜的离子强度刺激细菌的生长及胞外聚合物(EPS)的生成,导致介质渗透性下降幅度达到99%,离子强度过高或过低都会抑制微生物的生长;Na+可以中和介质与细菌表面的负电荷,通过压缩双电层及减少静电斥力,进而增强细菌在介质表面的附着能力;介质中的碳酸盐矿物水解可导致环境pH值升高,诱导介质中的微量SiO_(2),Al_(2)O_(3)等矿物溶解,促使介质孔隙度增大,延缓生物堵塞的发生时间并缓解堵塞程度;外源Na+及内源介质溶解产生的Ca^(2+),Mg^(2+),Al(Ⅲ),刺激细菌产生更多的EPS,同时化学离子与EPS的官能团以新的官能团和化学键结合,形成新的物质,对堵塞的发生和演化起促进作用;溶解产生的Mg^(2+),Ca^(2+)与细菌呼吸产生的CO_(2),在微碱性条件下反应形成新的沉淀,也对堵塞产生促进作用.

关键词：地下水人工回灌水-岩作用离子强度生物堵塞

Endoscopic treatment for acute appendicitis with coexistent acute pancreatitis: Two case reports

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World Journal of Clinical Cases 2021年第1期9卷 245-251页

作者： Zhi-qiang du Wen-Juan Ding Fei Wang Xiang-Rong Zhou Tian-Ming Chen Department of Gastroenterology Jianyang People’s Hospital of Sichuan ProvinceJianyang 641400Sichuan ProvinceChina

BACKGROUND Appendectomy is the procedure of choice for the treatment of acute ***,surgery may not be appropriate for patients with coexisting severe illness or comorbidities such as acute pancreatitis(AP).Endoscopic retrograde appendicitis treatment(ERAT)may be a novel alternative to surgery for treating such patients where existing medical therapies have *** SUMMARY We report 2 cases of moderately severe AP who developed acute uncomplicated appendicitis during their hospital stay and did not respond to traditional medical *** patient had moderately severe AP due to hyperlipidemia,while the other patient had a gallstone induced by moderately severe *** patient was fit to undergo an appendectomy procedure because of the concurrent ***,the alternative and minimally invasive ERAT was *** written informed consent was collected from the patients,the ERAT procedure was *** patients exhibited fast postoperative recovery after ERAT with minimal surgical *** ERAT is a safe and effective minimally invasive endoscopic procedure for acute appendicitis in patients with coexistent AP.

关键词： Endoscopic retrograde appendicitis treatment Acute pancreatitis Acute appendicitis Minimally invasive endoscopic procedure Safety and effectiveness Case report

数字经济背景下劳动者职业流动及其收入效应研究

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中国人口科学 2023年第1期37卷 86-100页

作者：乔小乐杜强何洋长安大学经济与管理学院广西大学工商管理学院

文章基于中国劳动力动态调查数据,探究了数字经济对劳动者职业流动及其收入回报的影响和作用机制。研究发现,数字经济不仅提高了劳动者的职业流动概率,还有效提升了职业流动后的收入回报。异质性分析结果显示,数字经济对女性、农村户籍... 详细信息

文章基于中国劳动力动态调查数据,探究了数字经济对劳动者职业流动及其收入回报的影响和作用机制。研究发现,数字经济不仅提高了劳动者的职业流动概率,还有效提升了职业流动后的收入回报。异质性分析结果显示,数字经济对女性、农村户籍和低学历劳动者的职业流动及其收入回报的影响更加显著。进一步分析结果表明,数字经济主要通过拓宽就业信息获取渠道、促进灵活就业和推动产业结构服务化转型三个途径,影响劳动者职业流动及其收入回报。文章以职业动态转换为切入点,拓展了数字经济对劳动就业影响的研究视角,为数字经济背景下畅通职业流动渠道,推动劳动力转岗提质就业提供了理论依据。

关键词：数字经济职业流动信息搜寻灵活就业产业结构服务化

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基于证据权重法地下水中氮浓度影响因素分析

中国环境科学 2023年第1期43卷 153-163页

作者：冯婧贺怀振杜新强吉林大学新能源与环境学院地下水资源与环境教育部重点实验室吉林长春130021 黑龙江省水利水电勘测设计研究院黑龙江哈尔滨150001

针对地下水中氮素浓度主控因素难以确定的问题,本文以三江平原松花江-挠力河流域为例,采用证据权重法,选取降水量、土地利用类型、人口密度、土壤有机质含量、粘土层厚度、地下水埋深、含水层厚度和地下水类型为证据因子,分别建立地下... 详细信息

针对地下水中氮素浓度主控因素难以确定的问题,本文以三江平原松花江-挠力河流域为例,采用证据权重法,选取降水量、土地利用类型、人口密度、土壤有机质含量、粘土层厚度、地下水埋深、含水层厚度和地下水类型为证据因子,分别建立地下水中氨氮和硝态氮的预测模型,并分析其对氮素浓度分布的影响程度,取得了较好的预测结果,其中氨氮和硝态氮的预测精度分别达到77.2%和89.1%.分析表明:三江平原地下水中氨氮和硝态氮浓度与降水量、人口密度呈正响应关系;氨氮浓度与含水层厚度呈正响应关系,而硝态氮与含水层厚度则呈负响应关系,说明氨氮受含水层氧化还原环境条件影响较大,硝态氮受含水层对流弥散作用影响较大;当土地利用类型为居住用地时,地下水中氨氮和硝态氮浓度通常较高.

关键词：地下水环境地下水氮污染三江平原证据权重法