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基于SIR模型的直播电商供应链运营风险传播与控制研究

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江苏建筑职业技术学院学报 2024年第1期24卷 69-73页

作者：靖培星张娴冯佳蕊江苏建筑职业技术学院经济管理学院江苏徐州221116

为正确识别直播电商供应链的风险因素,分析、研判风险在直播电商供应链的传播规律,构建了直播电商供应链的结构框架,利用复杂网络模拟了供应链的运营过程。首先,识别出直播电商供应链的22个风险因素,引入SIR风险传染模型。其次,根据风... 详细信息

为正确识别直播电商供应链的风险因素,分析、研判风险在直播电商供应链的传播规律,构建了直播电商供应链的结构框架,利用复杂网络模拟了供应链的运营过程。首先,识别出直播电商供应链的22个风险因素,引入SIR风险传染模型。其次,根据风险因素的分类,设置不同初始风险状态和传播规则,对风险传播过程进行模拟仿真分析。结果发现:品牌方的销售策略、主播的直播状态、直播间消费者对产品和主播的负面评价等风险需要重点关注。最后,结合风险传播路径和关键风险因素,提出控制直播电商供应链运营风险的管理措施。

关键词：直播电商供应链风险传播复杂网络 SIR模型

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养心安神类中药饮片及制剂临床应用研究进展

中国现代应用药学 2024年第13期41卷 1853-1863页

作者：冯佳锐凃鑫张宜仲田琦黄丽思刘立丽鲍康德王丹浙江理工大学生命科学与医药学院杭州310018 浙江省家蚕生物反应器和生物医药重点实验室杭州310063 浙江国邦药业有限公司药物研究所浙江绍兴312369

因生活和工作压力所引起的心烦失眠已严重影响到现代人的身心健康,并诱发诸多疾病。养心安神类中药质量稳定,对治疗失眠疗效显著,不良反应较少,且无镇静催眠类化学药的依赖性。养心安神类中药饮片及制剂按其功能可分为养心安神药和重镇... 详细信息

因生活和工作压力所引起的心烦失眠已严重影响到现代人的身心健康,并诱发诸多疾病。养心安神类中药质量稳定,对治疗失眠疗效显著,不良反应较少,且无镇静催眠类化学药的依赖性。养心安神类中药饮片及制剂按其功能可分为养心安神药和重镇安神药,其活性成分主要有黄酮类、生物碱类、有机酸类、多糖类、氨基酸类和维生素类等,临床多用于心血管疾病治疗和中枢神经抑制。本文对其种类、有效成分、发展趋势及其临床应用现状进行综述,以期为养心安神类药物在临床应用及相关药物的研发提供参考。

关键词：养心安神中药饮片中药制剂临床应用

Lithofacies paleogeography restoration and its significance of Jurassic to Lower Cretaceous in southern margin of Junggar Basin,NW China

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Petroleum Exploration and Development 2022年第1期49卷 78-93页

作者： GAO Zhiyong SHI Yuxin feng jiarui ZHOU Chuanmin LUO Zhong Petroleum Geology Research and Laboratory Center PetroChina Research Institute of Petroleum Exploration and DevelopmentBeijing 100083China State Key Laboratory of Enhanced Oil Recovery Beijing 100083China

In view of the difficulties in the study of lithofacies paleogeography and the low reliability of the distribution range of sedimentary sand bodies in the prototype basin caused by less deep drilling, complex seismic imaging and low degree of exploration in the southern margin of Junggar Basin, NW China. A new method based on the source to sink idea was used to restore lithofacies paleogeography and predict glutenite distribution. In the restoration, apatite fission track age was used to define range and uplift time of macro-provenance;the range of provenance area and the migration process of lake shoreline were restored based on the quantitative relationship between gravel diameter and transportation distance, tectonic shortening and other geological parameters;drilling cores and field outcrop sedimentary structures were analyzed, and a series of maps of lithofacies paleogeographic evolution and distribution range of glutenite bodies were compiled. It is concluded that from Early Jurassic to Early Cretaceous, in the southern margin of Junggar Basin, the provenance area gradually expanded from south to north, the lake basin expanded, shrunk and expanded, and the paleoclimate changed from humid to drought to humid. The western section always had proximal fan delta deposits from the southern ancient Tianshan provenance developed, and in the middle and eastern sections, the provenance areas evolved from far source to near source, mainly river-delta, braided delta, fan delta and other sediments developed. The boundary between provenance areas of the western and middle sections is speculated to be Hongche fault zone. In an angle open to the northwest with the current basin edge line, the restored ancient lake shoreline controlled the heterogeneity of reservoirs in the delta plain belt and delta front belt on its both sides. The ancient lake shoreline, current stratigraphic denudation line and current basin margin line limit the types and scope of favorable ***

关键词： southern margin of Junggar Basin deep lower assemblage Jurassic Cretaceous provenance lake shoreline lithofacies paleogeography favorable sandbody distribution

Action mechanisms of abnormal fluid pressure on physical properties of deep reservoirs: A case study on Jurassic Toutunhe Formation in the southern margin of Junggar Basin, NW China

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Petroleum Exploration and Development 2023年第6期50卷 1398-1410页

作者： GAO Zhiyong CUI Jinggang FAN Xiaorong feng jiarui SHI Yuxin LUO Zhong PetroChina Research Institute of Petroleum Exploration and Development Beijing 100083China College of Geosciences China University of Petroleum(Beijing)Beijing 104900China

Considering the action mechanisms of overpressure on physical changes in skeleton particles of deep reservoir rocks and the differences in physical changes of skeleton particles under overpressure and hydrostatic pressure, the sandstone of the Jurassic Toutunhe Formation in the southern margin of Junggar Basin was taken as an example for physical modeling experiment to analyze the action mechanisms of overpressure on the physical properties of deep reservoirs. (1) In the simulated ultra-deep layer with a burial depth of 6000-8000 m, the mechanical compaction under overpressure reduces the remaining primary pores by about a half that under hydrostatic pressure. Overpressure can effectively suppress the mechanical compaction to allow the preservation of intergranular primary pores. (2) The linear contact length ratio under overpressure is always smaller than the linear contact length ratio under hydrostatic pressure at the same depth. In deep reservoirs, the difference between the mechanical compaction degree under overpressure and hydrostatic pressure shows a decreasing trend, the effect of abnormally high pressure to resist the increase of effective stress is weakened, and the degree of mechanical compaction is gradually close to that under hydrostatic pressure. (3) The microfractures in skeleton particles of deep reservoirs under overpressure are thin and long, while the microfractures in skeleton particles of deep reservoirs under hydrostatic pressure are short and wide. This difference is attributed to the probable presence of tension fractures in the rocks containing abnormally high pressure fluid. (4) The microfractures in skeleton particles under overpressure were mainly formed later than that under hydrostatic pressure, and the development degree and length of microfractures both extend deeper. (5) The development stages of microfractures under overpressure are mainly controlled by the development stages of abnormally high pressure and the magnitude of effect

关键词： abnormally high fluid pressure deep reservoir microfracture physical simulation of diagenesis Jurassic Toutunhe Formation southern margin of Junggar Basin

Lightweight Intrusion Detection Using Reservoir Computing

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Computers, Materials & Continua 2024年第1期78卷 1345-1361页

作者： jiarui Deng Wuqiang Shen Yihua feng Guosheng Lu Guiquan Shen Lei Cui Shanxiang Lyu Joint Laboratory on Cyberspace Security China Southern Power GridGuangzhou510080China College of Cyber Security Jinan UniversityGuangzhou510632China Guangdong Power Grid Company Limited Guangzhou510663China School of Computer Science and Technology Guangdong University of TechnologyGuangzhou510006China China Southern Power Grid Extra High Voltage Transmission CompanyGuangzhouChina

The blockchain-empowered Internet of Vehicles(IoV)enables various services and achieves data security and privacy,significantly advancing modern vehicle ***,the increased frequency of data transmission and complex network connections among nodes also make them more susceptible to adversarial *** a result,an efficient intrusion detection system(IDS)becomes crucial for securing the IoV *** IDSs based on convolutional neural networks(CNN)often suffer from high training time and storage *** this paper,we propose a lightweight IDS solution to protect IoV against both intra-vehicle and external *** approach achieves superior performance,as demonstrated by key metrics such as accuracy and ***,our method achieves accuracy rates ranging from 99.08% to 100% on the Car-Hacking dataset,with a remarkably short training time.

关键词： Echo state network intrusion detection system Internet of Vehicles reservoir computing

Effect of Excavation Step on Mechanical Behavior of Gourd-shaped Diaphragm Wall

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Effect of Excavation Step on Mechanical Behavior of Gourd-sh...

Inherent thermal-responsive strategies for safe lithium batteries

2022年全国土木工程施工技术交流会

作者： ZHANG Jun HE Jiantao feng jiarui College of Civil Engineering Changsha University of Science and Technology Hunan Survey and Design Institute

Based on the project of anchorage foundation pit of Dongting Lake Bridge in china,Flac3D numerical simula-tion software is used for calculation,focusing on the influence of different excavation steps on the mechanical properties ofthe gourd-shaped diaphragm *** calculation results show that there are some differences in the mechanical behavior ofthe support system of the diaphragm wall under different excavation *** is embodied in the numerical changes such asthe horizontal displacement and hoop stress of the diaphragm wall and the vertical displacement of the surrounding soil inthe influence area of foundation *** different excavation steps,the horizontal displacement and hoop stress of the di-aphragm wall show an inverse "C" distribution with the depth of the wall,the maximum deformation and hoop stress gener-ally appear at 25～32m from the top of the wall when excavated to the base,and the hoop stress curve of the foundation pitshows the tensile stress at two ends and the compressed stress in the middle of the *** the actual construction,asym-metric and uneven excavation,which is not conducive to the deformation of the diaphragm wall,should be avoided as far aspossible.

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Journal of Energy Chemistry 2024年第2期89卷 519-534,I0012页

作者： Jia-Xin Guo Chang Gao He Liu feng Jiang Zaichun Liu Tao Wang Yuan Ma Yiren Zhong jiarui He Zhi Zhu Yuping Wu Xin-Bing Cheng School of Energy and Environment Southeast UniversityNanjing 211189JiangsuChina School of Chemistry and Materials Science Nanjing University of Information Science and TechnologyNanjing 210044JiangsuChina

Safe batteries are the basis for next-generation application scenarios such as portable energy storage devices and electric vehicles,which are crucial to achieving carbon ***,separators,and electrodes as main components of lithium batteries strongly affect the occurrence of safety *** materials,which can respond to external stimuli or environmental change,have triggered extensive attentions recently,holding great promise in facilitating safe and smart *** review thoroughly discusses recent advances regarding the construction of high-safety lithium batteries based on internal thermal-responsive strategies,together with the corresponding changes in electrochemical performance under external ***,the existing challenges and outlook for the design of safe batteries are presented,creating valuable insights and proposing directions for the practical implementation of safe lithium batteries.

关键词： Lithium battery Thermal safety Thermal runaway Thermal-responsive

基于PSO-BP神经网络的增量式拉线位移传感器误差补偿方法

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传感技术学报 2022年第3期35卷 335-341页

作者：徐峰姚恩涛冯嘉瑞曹智超南京航空航天大学自动化学院江苏南京211100

拉线位移传感器将拉绳的位移转变为滑轮的转动,通过角度测量得到拉线自由端的位移,安装方式和使用环境都会对测量结果产生影响。本文基于拉线位移传感器的工作原理建立了拉线的力学模型,分析了误差影响因素,同时分析了其角度测量部件-... 详细信息

拉线位移传感器将拉绳的位移转变为滑轮的转动,通过角度测量得到拉线自由端的位移,安装方式和使用环境都会对测量结果产生影响。本文基于拉线位移传感器的工作原理建立了拉线的力学模型,分析了误差影响因素,同时分析了其角度测量部件-增量式旋转编码器引入的误差。由于目前比较普遍使用的误差补偿模型优化算法难以获得较好的补偿效果,本文提出了一种基于粒子群算法(PSO)优化的BP神经网络模型的误差补偿方法。以KS120系列拉线位移传感器为研究对象,进行了实验研究,结果显示:在全量程范围内,使用该方法进行误差补偿后的拉线位移传感器精度由0.136%FS提高到0.007%FS,提高了95%。最后将本模型与基于多项式拟合算法和传统BP神经网络算法的补偿系统进行实验对比,结果显示补偿效果亦优于这两种方法。

关键词：传感器技术拉线位移传感器 BP神经网络粒子群算法误差补偿

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洞庭湖大桥锚定基坑降水及对地连墙影响分析

地下空间与工程学报 2018年第S1期14卷 256-262页

作者：张军冯佳蕊翟少磊湖南大学土木工程学院，长沙410000 长沙理工大学土木与建筑学院，长沙410000

随着深基坑工程的广泛应用,如何就基坑工程中的地下水问题进行深入研究,寻求合理的降水方案及试验分析降水对地下连续墙的影响就显得尤为重要。针对大岳高速洞庭湖锚定基坑现有条件,现采用室内变水头试验分别测定不同孔隙比和含水率条... 详细信息

随着深基坑工程的广泛应用,如何就基坑工程中的地下水问题进行深入研究,寻求合理的降水方案及试验分析降水对地下连续墙的影响就显得尤为重要。针对大岳高速洞庭湖锚定基坑现有条件,现采用室内变水头试验分别测定不同孔隙比和含水率条件下的土层渗透系数,总结二者影响机理进而选择适用的降水的方法。借助有限元分析软件Midas GTS模拟考虑降水和不降水两种情况,对实际工程锚碇基坑建立三维模型,并在此基础上模拟地连墙墙体厚度不同时其受力和变形特点,模拟结果显示基坑降水开挖相对于不降水时,地连墙墙体的环向应力、竖向弯矩、侧向位移均增大,并提出通过增加地连墙的墙体厚度可一定范围内对地连墙的自稳有积极作用。

关键词：深基坑基坑降水地下连续墙数值模拟 Midas-GTS