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Design of Feedback Shift Register of Against Power Analysis Attack

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Computers, Materials & Continua 2019年第2期58卷 517-527页

作者： yongbin zhao XuYang RanranLi School of Information Science and Technology Shijiazhuang Tiedao UniversityShijiazhuangChina

Stream ciphers based on linear feedback shift register(LFSR)are suitable for constrained environments,such as satellite communications,radio frequency identification devices tag,sensor networks and Internet of Things,due to its simple hardware structures,high speed encryption and lower power ***,as a cryptographic primitive,has been used to generate a maximum period *** the switching of the status bits is regular,the power consumption of the LFSR is correlated in a linear *** a result,the power consumption characteristics of stream cipher based on LFSR are vulnerable to leaking initialization vectors under the power *** this paper,a new design of LFSR against power attacks is *** power consumption characteristics of LFSR can be masked by using an additional LFSR and confused by adding a new filter Boolean function and a *** design method has been implemented easily by circuits in this new design in comparison with the others.

关键词： Stream cipher feedback shift register power analysis Boolean function

2020至2022年津冀地区4695例急性毒物中毒

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中华劳动卫生职业病杂志 2024年第8期42卷 586-589页

作者：陈姿如赵永斌杜书明孙中吉中国人民武装警察部队特色医学中心医学工程科天津300162 天津青果科技有限公司司法鉴定中心天津300110 中国人民武装警察部队特色医学中心急诊科天津300162

目的研究分析2020至2022年津冀地区4695例急性毒物中毒的规律,为相关患者的救治和中毒防范提供参考。方法于2023年11月,收集2020年1月1日至2022年12月31日津冀地区多中心4695例毒物中毒患者于天津青果科技有限公司毒物鉴定中心分析结果... 详细信息

目的研究分析2020至2022年津冀地区4695例急性毒物中毒的规律,为相关患者的救治和中毒防范提供参考。方法于2023年11月,收集2020年1月1日至2022年12月31日津冀地区多中心4695例毒物中毒患者于天津青果科技有限公司毒物鉴定中心分析结果及临床资料作为研究对象,分析研究对象的性别、年龄、毒物中毒类型、季节、中毒途径等情况,并进行统计学分析。结果研究对象中男女比为1∶1.16(2173/2522);毒物中毒中抗抑郁精神类药物和苯二氮卓类药物最多,分别为1550、1274例(分别占33.0%、27.1%)。百草枯中毒逐年减少,敌草快、草甘膦和草胺磷等低毒性低毒类除草剂中毒逐年增多(χ^(2)=179.47,P<0.01)。中毒患者二季度月达到高峰期,四季度则相对较少。结论针对毒物中毒高发年龄、季节和人群应采取相关的干预措施,建立健全必要的毒物中毒防范措施,健全镇静类药品管理和用药制度,加强农药管理和保管储存。

关键词：中毒抑郁症药物有机磷除草剂

The Application and Research of parallel file system in electric power enterprise portal system

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The Application and Research of parallel file system in elec...

北方不冻水域落单中华秋沙鸭及其混合群的越冬对策

第25届中国控制与决策会议

作者： Zhang Jingxin zhao yongbin Yu Liangliang Liaoning Electric Power Co. Ltd

ISBN: (纸本)9781467355339

The shortcoming of original data storage is the main limit of increasing the access effect of the portal system. Therefore to adopt a reasonable and effective way of storage is the top emergency. Nowadays, to keep all the photos and attachments on a single storage cannot meet the requirements of the application. The paper solves the problem derived from the system’s failing to support multiple accesses, in the way of studying the shortcomings of the portal system storage and experiments about applications in real Internet. Adapting the loading way of parallel file in order to use the sources effectively. Generally, this essay is useful in the aspect of application of parallel file.

关键词： Enterprise Portal parallel file system

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中国畜禽种业 2024年第1期20卷 70-76页

作者：郝亚南田然王卓赵永斌易国栋刘军刘志高吉林师范大学生命科学学院吉林四平136000 吉林师范大学教育科学学院吉林四平136000 河北玉田一中河北玉田064100 辽宁本溪满族自治县林业有害生物防治检疫野生动植物保护办公室辽宁本溪117100

中华秋沙鸭,是我国的濒危物种之一,通常在中国长江流域尤其是江西省越冬,但也存在少数个体在北方不冻水域越冬,研究中华秋沙鸭的越冬行为对于全面了解其种群数量与分布、生境选择,进而对其进行保护具有重要意义。2020年12月-2021年2月和... 详细信息

中华秋沙鸭,是我国的濒危物种之一,通常在中国长江流域尤其是江西省越冬,但也存在少数个体在北方不冻水域越冬,研究中华秋沙鸭的越冬行为对于全面了解其种群数量与分布、生境选择,进而对其进行保护具有重要意义。2020年12月-2021年2月和2022年1-2月,在辽宁省本溪市太子河不冻水域,采用瞬时扫描法和固定样点法观测越冬的中华秋沙鸭及与该鸟混群的普通秋沙鸭的越冬行为,并对两者进行比对,同时还收集了在江西等地越冬的中华秋沙鸭群体行为数据,与本溪越冬的中华秋沙鸭进行比较。结果发现,连续2年均只有1只雄性中华秋沙鸭在该地越冬,而这些落单的中华秋沙鸭均选择与其亲缘关系较近的普通秋沙鸭混群,并且在栖息地选择方面表现出较强的特异性,同时在觅食、游泳、休息、游戏和梳羽等方面与普通秋沙鸭不存在差异。相反,本溪中华秋沙鸭的行为节律与江西等地越冬的中华秋沙鸭群体存在明显差异,暗示落单的中华秋水鸭的越冬行为可能受到温度及其混群对象的影响。

关键词：中华秋沙鸭越冬行为不冻水域混群

Principal Component Analysis and Cluster Analysis of Luffa Germplasm Resources in Zhejiang Province

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Agricultural Biotechnology 2014年第5期3卷 15-20页

作者： Chunmei FENG Jiaoyang WANG yongbin zhao Weidong QU Taizhou Academy of Agricultural Sciences

In this study, 32 Luffa germplasm resources were collected from various regions in Zhejiang Province as experimental materials, to investigate 22 agronomic traits including fruit bearing habit, leaf margin, fruit ribbing and percentage of nodes with female flowers to total node. Based on the obtained experimental data, principal component analysis and cluster analysis were carried out using DPS software. The results showed that 22 agronomic traits could be integrated into 5 principal components, with the cumulative contributive percentage of 81. 308%. According to the correlations between the first five principal components and traits, 14 traits with great influences were screened. On the basis of principal component analysis, cluster analysis of 32 Luffa germplasm resources was conducted, which divided Luffa cylindrica and Luffa acutangula into two categories and six subcategories by Euclidean genetic distances. This study provided scientific basis for the collection, preservation, identification, creation and utilization of Luffa germplasm and parent selection in cross breeding of Luffa.

关键词： Luffa Agronomic traits Principal component analysis Cluster analysis

基于磁通对称特性的变压器励磁涌流判别新算法

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电工技术学报 2007年第12期22卷 66-71页

作者：赵永彬陆于平东南大学电气工程学院南京210096

利用变压器在空投或故障情况下磁通对称特性来判别励磁涌流和故障电流是基于变压器的数学模型而得,较为真实地反映了变压器的运行工况。本文从变压器磁通和电流的非线性关系出发,分别找出变压器在空投、正常运行以及内部故障时磁通的变... 详细信息

利用变压器在空投或故障情况下磁通对称特性来判别励磁涌流和故障电流是基于变压器的数学模型而得,较为真实地反映了变压器的运行工况。本文从变压器磁通和电流的非线性关系出发,分别找出变压器在空投、正常运行以及内部故障时磁通的变化规律,取一个周波内磁通对电流的变化率前后半波的对称度来反应磁通的这种变化(对称与否)。对称度大小作为区分励磁涌流和故障电流的判据,具有较高的可靠性和灵敏度,通过试验和仿真证明该方法可以有效地区分励磁涌流和故障电流,具有较高的实用性。

关键词：变压器励磁涌流磁通对电流变化率对称性

基于磁通和电流不对称椭圆模型的变压器励磁涌流判别新算法

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东南大学学报（自然科学版） 2007年第6期37卷 1001-1007页

作者：赵永彬陆于平东南大学电气工程学院南京210096

依据变压器空投时磁通和电流的严重不对称变化和正常运行或内部故障时磁滞影响使磁通和电流成偏移的近似椭圆对称变化,对磁通和电流做适当的变换处理.在一定数据窗内定义一个反应准椭圆中心的偏移度,并连续取半个周期准椭圆中心的偏移... 详细信息

依据变压器空投时磁通和电流的严重不对称变化和正常运行或内部故障时磁滞影响使磁通和电流成偏移的近似椭圆对称变化,对磁通和电流做适当的变换处理.在一定数据窗内定义一个反应准椭圆中心的偏移度,并连续取半个周期准椭圆中心的偏移度平均值来反应磁通和电流是否对称变化.变压器空投时偏移度较大;内部故障时偏移度小;空投略微严重的内部故障时偏移度由大到小变化.偏移度大小作为区分励磁涌流和故障电流的判据,简单可靠,具有较高灵敏度.通过试验和仿真证明此种方法可以有效地区分励磁涌流和故障电流,具有较高的实用性.

关键词：变压器励磁涌流椭圆模型中心点偏移度

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基于故障分量的变压器浮动比率差动保护

电力系统自动化 2007年第13期31卷 83-87页

作者：赵永彬陆于平东南大学电气工程学院江苏省南京市210096

为防止变压器穿越性电流造成的不平衡电流影响,需要设置一个差动动作门槛,而变压器区内匝间故障或高阻抗接地故障却希望门槛越小越好。比率制动斜率大小的选择影响保护动作区和制动区的大小,区外故障希望斜率大些,区内故障希望斜率小些... 详细信息

为防止变压器穿越性电流造成的不平衡电流影响,需要设置一个差动动作门槛,而变压器区内匝间故障或高阻抗接地故障却希望门槛越小越好。比率制动斜率大小的选择影响保护动作区和制动区的大小,区外故障希望斜率大些,区内故障希望斜率小些。门槛和斜率的选择直接影响比率差动保护的灵敏度和可靠性。文中深入分析比较了基于故障分量比率差动保护和传统电流比率差动保护,证明故障分量比率差动保护具有很高的灵敏度和可靠性,而且试验证明在某些故障情况下,利用故障分量的浮动比率制动较之传统的电流比率差动保护具有非常明显的优越性和实用性。

关键词：变压器保护浮动比率差动保护故障分量灵敏度

Metabolic and microbial changes in light-vented bulbul during recent northward range expansion

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Current Zoology 2024年第1期70卷 24-33页

作者： Yun Wu Ying Xiong Yanzhu Ji Yalin Cheng Qianghui Zhu Xiaolu Jiao yongbin Chang Na zhao Jing Yang Fumin Lei Gang Song Key Laboratory of Zoological Systematics and Evolution Institute of ZoologyChinese Academy of SciencesBeijing 100101China College of Life Science University of Chinese Academy of SciencesBeijing 100049China Department of Zoology College of Life scienceSichuan Agricultural UniversityYa'an 625099SichuanChina Henan Engineering Research Center of Bird-Related Outage Zhengzhou Normal UniversityZhengzhou 450044China School of Ecology and Environment Anhui Normal UniversityWuhu 241002AnhuiChina School of Environmental Science and Engineering Shaanxi University of Science and TechnologyXian 710021China Centerfor Excellence inAnimal Evolutionand Genetics Chinese Academy of SciencesKunming 650223China

Endotherms recently expanding to cold environments generally exhibit strong physiological acclimation to sustain high body *** this process,gut microbes likely play a considerable role in host physiological functions,including digestion and *** light-vented bulbul Pycnonotus sinensis represents one such *** used to be restricted to the Oriental realm but expanded its distribution range north to the Palearctic areas during the past few ***,we explored the seasonal dynamics of the resting metabolic rate(RMR)and microbiota for local and newly colonized populations of the *** results showed that the mass-adjusted RMR and body mass were pos-itively correlated with latitude variations in both ***,the gut microbiota showed a corresponding variation to the northern cold *** the two northern populations,the alpha diversity decreased compared with those of the two southern *** differences were detected in dominant phyla,such as Firmicutes,Bacteroidetes,Proteobacteria,and Desulfobacterota in both *** core microbiota showed geographic differences in the winter,including the elevated relative abundance of 5 species in northern ***,to explore the link between microbial communities and host metabolic thermogenesis,we conducted a correlation analysis between microbiota and mass-adjusted *** found that more genera were significantly correlated with mass-adjusted RMR in the wintering season compared to the breeding season(71 vs.23).These results suggest that microbiota of the lighted-vented bulbul linked with thermogenesis in diversity and abundance under northward expansion.

关键词： bird body mass gutmicrobiota RMR season