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Anti-Byzantine Attacks Enabled Vehicle Selection for Asynchronous Federated Learning in Vehicular Edge Computing

China Communications 2024年第8期21卷 1-17页

作者： Zhang Cui Xu Xiao Wu Qiong Fan Pingyi Fan Qiang zhu huiling Wang Jiangzhou School of Internet of Things Engineering Wuxi Institute of TechnologyWuxi 214121China School of Internet of Things Engineering Jiangnan UniversityWuxi 214122China Department of Electronic Engineering Beijing National Research Center for Information Science and TechnologyTsinghua UniversityBeijing 100084China Qualcomm San Jose CA 95110USA School of Engineering University of KentCT27NT CanterburyU.K

In vehicle edge computing(VEC),asynchronous federated learning(AFL)is used,where the edge receives a local model and updates the global model,effectively reducing the global aggregation *** to different amounts of local data,computing capabilities and locations of the vehicles,renewing the global model with same weight is *** above factors will affect the local calculation time and upload time of the local model,and the vehicle may also be affected by Byzantine attacks,leading to the deterioration of the vehicle ***,based on deep reinforcement learning(DRL),we can consider these factors comprehensively to eliminate vehicles with poor performance as much as possible and exclude vehicles that have suffered Byzantine attacks before *** the same time,when aggregating AFL,we can focus on those vehicles with better performance to improve the accuracy and safety of the *** this paper,we proposed a vehicle selection scheme based on DRL in *** this scheme,vehicle’s mobility,channel conditions with temporal variations,computational resources with temporal variations,different data amount,transmission channel status of vehicles as well as Byzantine attacks were taken into *** results show that the proposed scheme effectively improves the safety and accuracy of the global model.

关键词： asynchronous federated learning byzantine attacks vehicle selection vehicular edge computing

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考虑外集卡到达时间随机的提箱策略优化

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运筹与管理 2024年第6期33卷 22-27页

作者：徐高宇祝慧灵计明军大连海事大学交通运输工程学院辽宁大连116026

在进口箱提箱作业中,外集卡不准时到港会引起外集卡到港顺序发生变化,影响后续提箱顺序,导致翻箱成本和外集卡等待成本增加。本文提出一种动态决策提箱顺序的策略,通过考虑权重和时差,旨在最小化翻箱成本和等待成本,建立基于外集卡到港... 详细信息

在进口箱提箱作业中,外集卡不准时到港会引起外集卡到港顺序发生变化,影响后续提箱顺序,导致翻箱成本和外集卡等待成本增加。本文提出一种动态决策提箱顺序的策略,通过考虑权重和时差,旨在最小化翻箱成本和等待成本,建立基于外集卡到港时间随机性的提箱调度模型,并采用遗传算法求解。结果发现:在相同情境下,两种提箱策略存在显著差异,尤其是在扰动较大时差异更为明显。最后,使用成本的期望和方差评价两种策略的优劣。数值实验结果表明,对比先到先服务策略,本文提出考虑权重和时差能够实现动态决策的提箱策略在降低成本的同时保证各情景下的成本稳定性。

关键词：集装箱堆场外集卡提箱提箱策略到达时间随机遗传算法

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脂肪酸平衡在仔猪生产中的应用研究进展

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动物营养学报 2024年第1期36卷 33-39页

作者：石炳钊康萍朱惠玲刘玉兰武汉轻工大学动物营养与饲料科学湖北省重点实验室武汉430023

脂肪酸不仅在仔猪生长发育中提供大量能量,且在肠道发育和免疫功能方面也起到关键作用。本文综述了各类脂肪酸平衡在促进仔猪生长、维持肠道屏障和调节免疫功能方面的作用,以期为脂肪酸在仔猪生产中的应用提供参考。

关键词：脂肪酸脂肪酸平衡肠道健康仔猪

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直升机复合材料拉扭条扭转性能分析

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直升机技术 2024年第2期 35-38,45页

作者：朱慧玲杨磊中国直升机设计研究所江西景德镇333001

拉扭条作为直升机旋翼桨毂的主要承力结构,承受桨叶旋转产生的离心力并通过自身的大变形实现桨叶的变距,其所承载的离心力和扭角变形随直升机飞行状态的变化而变化。针对复合材料拉扭条组件,基于ABAQUS建立仿真模型并求解应变和角度变... 详细信息

拉扭条作为直升机旋翼桨毂的主要承力结构,承受桨叶旋转产生的离心力并通过自身的大变形实现桨叶的变距,其所承载的离心力和扭角变形随直升机飞行状态的变化而变化。针对复合材料拉扭条组件,基于ABAQUS建立仿真模型并求解应变和角度变形云图;设计静力试验台架进行验证试验来验证仿真模型,并进一步分析离心力、扭角对其扭转性能的影响。结果表明:复合材料拉扭条的扭转刚度随扭角的增大而减小,随离心力的增大而增大,且离心力对复合材料拉扭条的扭转刚度影响更大。

关键词：复合材料拉扭条静力试验离心力扭角扭转性能

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An easy CTAB-assisted path towards bayberry-like Ni–Co–Mn ternary hydroxide with enhancing supercapacitor performance

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Progress in Natural Science:Materials International 2023年第4期33卷 433-441页

作者： huiling zhu Kai Wang Yao Qi Ruixin Li Jianxu Ding Rui Liu School of Materials Science and Engineering Shandong University of Science and Technology College of Energy and Mining Engineering Shandong University of Science and Technology

In this study, we synthesized a bayberry-like Ni–Co–Mn ternary hydroxide with a secondary nanoneedle structure using a modified and cost-effective hydrothermal process assisted by the surfactant cetyltrimethylammonium bromide(CTAB). The incorporation of CTAB and graphene in the preparation process significantly enhances the electrochemical performance of NiCoMn–OH. The achieved results are truly impressive, with a high specific capacity of 1450 F g-1and an outstanding capacity retention of 52.57% over 5000 cycles. The superior performance could be attributed to the specific bayberry-like microstructure with high effective specific surface area,which allowed for facile and rapid transport of ions and electrons. Moreover, the synergistic effect of CTAB and graphene proved to be crucial in stabilizing the Co2+and Mn2+ions within the ternary hydroxide structure. We developed a hybrid capacitor using a NiCoMn–OH-CTAB/Graphene composite electrode and an active electrode,which delivered a superior energy density of 50.79 Wh kg-1at a power density of 400 W kg-1and a cycling stability of 60.37% after 10000 cycles. These results indicate that the NiCoMn–OH-CTAB/Graphene composite electrode has great potential as an electrode material for energy storage devices.

关键词： Bayberry-like microstructure CTAB Graphene Ni-Co-Mn ternary hydroxide Supercapacitors

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孕中期母体血清F-β-HCG、VB12、Hcy水平、四维彩超联合检测对胎儿中枢神经系统畸形(CNS)的诊断价值

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航空航天医学杂志 2024年第6期35卷 641-644页

作者：朱会玲刘华王晓莹洛阳牡丹妇产医院超声科河南洛阳471000 新乡市中心医院超声科河南新乡453000 黄河三门峡医院超声科河南三门峡472000

目的探究孕中期四维彩超联合母体血清维生素B12(VB12)、游离-β-人绒毛膜促性腺激素(F-β-HCG)、同型半胱氨酸(Hcy)水平检测对胎儿中枢神经系统畸形(CNS)的诊断价值。方法选取2021年07月~2023年08月于我院就诊的78例疑似胎儿CNS孕妇,... 详细信息

目的探究孕中期四维彩超联合母体血清维生素B12(VB12)、游离-β-人绒毛膜促性腺激素(F-β-HCG)、同型半胱氨酸(Hcy)水平检测对胎儿中枢神经系统畸形(CNS)的诊断价值。方法选取2021年07月~2023年08月于我院就诊的78例疑似胎儿CNS孕妇,以生产结局为金标准,统计生产结局、四维彩超结果,并分析四维彩超诊断效能,比较发生CNS与正常者母体血清Hcy、VB12、F-β-HCG水平,效能分析采用受试者(ROC)曲线。结果四维彩超诊断灵敏度、准确度分别为86.67%、94.87%,漏诊率为13.33%;发生胎儿CNS的母体血清F-β-HCG、Hcy水平均高于正常者(P<0.05);母体血清VB12水平低于正常者(P<0.05);母体血清维生素B12、F-β-HCG、Hcy水平、四维彩超联合诊断胎儿CNS的AUC为0.962,最佳预测敏感度、特异度分别为93.33%、85.71%,均高于单独诊断。结论四维彩超联合母体血清维生素B12、F-β-HCG、Hcy水平诊断可作为筛查CNS的辅助指标,具有较高的诊断灵敏度,可为临床及时诊断,终止妊娠,避免畸形新生儿提供可靠依据。

关键词：四维彩超血清维生素B12 游离-β-人绒毛膜促性腺激素同型半胱氨酸胎儿中枢神经系统畸形

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血清PECAM-1、PLGF水平联合子宫动脉多普勒超声参数检测在妊娠高血压患者不良妊娠结局中的预测价值

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航空航天医学杂志 2024年第8期35卷 901-904页

作者：朱会玲王晓莹李虹瑾洛阳牡丹妇产医院超声科河南洛阳471000 黄河三门峡医院超声科河南三门峡472000 河南省人民医院核磁共振科河南郑州450000

目的探究子宫动脉多普勒超声参数、血清血小板内皮细胞黏附分子-1(PECAM-1)、胎盘生长因子(PLGF)联合检测对妊娠高血压(HDCP)患者不良妊娠结局的预测价值。方法选取2022年09月-2023年08月于我院就诊的65例HDCP患者作为观察组,同期选取6... 详细信息

目的探究子宫动脉多普勒超声参数、血清血小板内皮细胞黏附分子-1(PECAM-1)、胎盘生长因子(PLGF)联合检测对妊娠高血压(HDCP)患者不良妊娠结局的预测价值。方法选取2022年09月-2023年08月于我院就诊的65例HDCP患者作为观察组,同期选取65例健康产检者作为对照组进行研究,比较2组及不同程度HDCP患者子宫动脉多普勒超声参数[脐动脉搏动指数(PI)、阻力指数(RI)、血流速度峰谷比(S/D)]及血清PECAM-1、PLGF水平,通过比较不同妊娠结局的子宫动脉多普勒超声参数及血清PECAM-1、PLGF水平,绘制受试者工作特性(ROC)曲线分析预测价值。结果研究组RI、PI、S/D均高于对照组,且不良妊娠结局者RI、PI、S/D高于良好妊娠者(P<0.05);研究组及不良妊娠结局者血清PECAM-1、PLGF水平均明显低于对照组及良好妊娠结局者(P<0.05);HDCP组血清PECAM-1、PLGF水平高于轻度子痫前期组,PI、RI、S/D低于轻度子痫前期组;重度子痫前期组血清PLGF、PECAM-1水平低于轻度子痫前期组,RI、PI、S/D高于轻度子痫前期组(P<0.05);血清PECAM-1、PLGF水平联合多普勒超声参数(子宫动脉)预测HDCP患者不良妊娠结局的AUC为0.916,95%CI为0.820~0.970,均高于单独诊断。结论血清PECAM-1、PLGF水平、子宫动脉多普勒超声参数联合检测在预测HDCP疾病不良妊娠结局中具有较高的预测价值,临床意义较高。

关键词：子宫动脉多普勒超声参数血小板内皮细胞黏附分子-1 胎盘生长因子妊娠高血压不良妊娠结局

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Distributive proper forcing axiom and a left-right dichotomy of Cichon's diagram

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Science China Mathematics 2018年第4期61卷 677-684页

作者： huiling zhu School of Data and Computer Science Sun Yat-sen University

In this paper, we study distributive proper forcing axiom(DPFA) and prove its consistency with a dichotomy of the Cichon's diagram, relative to certain large cardinal assumption. Namely, we evaluate the cardinal invariants in Cichon's diagram with the first two uncountable cardinals in the way that the left-hand side has the least possible cardinality while the right-hand side has the largest possible value, and preserve the evaluation along the way of forcing DPFA.

关键词： forcing axiom Cichon's diagram preservation

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Selenium-enriched Cardamine violifolia protects against sepsis-induced intestinal injury by regulating mitochondrial fusion in weaned pigs

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中国科学:生命科学英文版 2023年第9期66卷 2099-2111页

作者： Dan Wang Yanling Kuang Qingqing Lv Wenshuai Xie Xiao Xu huiling zhu Yue Zhang Xin Cong Shuiyuan Cheng Yulan Liu Hubei Key Laboratory of Animal Nutrition and Feed Science Wuhan Polytechnic UniversityWuhan 430023China Enshi Se-Run Material Engineering Technology Co. Ltd.Enshi 445000China National R&D Center for Se-rich Agricultural Products Processing School of Modern Industry for Selenium Science and EngineeringWuhan Polytechnic UniversityWuhan 430023China

Sepsis is a life-threatening organ dysfunction caused by the dysregulated response of the host to an infection, and treatments are limited. Recently, a novel selenium source, selenium-enriched Cardamine violifolia(SEC) has attracted much attention due to its anti-inflammatory and antioxidant properties, but little is known about its role in the treatment of sepsis. Here, we found that SEC alleviated LPS-induced intestinal damage, as indicated by improved intestinal morphology, and increased disaccharidase activity and tight junction protein expression. Moreover, SEC ameliorated the LPS-induced release of pro-inflammatory cytokines, as indicated by decreased IL-6 level in the plasma and jejunum. Moreover, SEC improved intestinal antioxidant functions by regulating oxidative stress indicators and selenoproteins. In vitro, TNF-α-challenged IPEC-1 cells were examined and showed that selenium-enriched peptides, which are the main functional components extracted from Cardamine violifolia(CSP), increased cell viability, decreased lactate dehydrogenase activity and improved cell barrier function. Mechanistically, SEC ameliorated LPS/TNF-α-induced perturbations in mitochondrial dynamics in the jejunum and IPEC-1 cells. Moreover, CSPmediated cell barrier function is primarily dependent on the mitochondrial fusion protein MFN2 but not MFN1. Taken together,these results indicate that SEC mitigates sepsis-induced intestinal injury, which is associated with modulating mitochondrial fusion.

关键词： intestine MFN2 mitochondrial fusion piglets selenium sepsis

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Simultaneously enhancing the electronic and ionic conductivities of Li_(2)ZnTi_(3)O_(8)via modification with polyacrylonitrile-derived carbon for high-performance anodes

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ChemPhysMater 2023年第1期2卷 43-51页

作者： Yujun Bai Jiali Qin Jiaxuan Cai huiling zhu Tao Li Yanxiang Wang Yongxin Qi Key Laboratory of Liquid-Solid Structural Evolution and Processing of Materials of Ministry of Education State Key Laboratory of Crystal MaterialsShandong UniversityJinan 250061China School of Materials Science and Engineering Shandong University of Science and TechnologyQingdao 266590China

Polyacrylonitrile(PAN)with C≡N bonds can be converted to nitrogen-doped carbon during carbonization,which enhances electronic conductivity by compensating for the deficiency of the Li_(2)ZnTi_(3)O_(8)(LZTO)*** this study,LZTO was modified by carbonizing a homogeneous PAN/LZTO powder mixture at approximately 800℃for 5 h in nitrogen stream to uniformly coat nitrogen-doped carbon around the LZTO particles and to yield nitrogen-doped ***-60 exhibited a capacity retention of 74.8%as the current density increased from 0.1 to 1.6 A g−1,and had charge/discharge capacities of 250.1/250.8 mAh g−1 even after 1100 cycles at 0.5 A g−*** and compositional analysis along with electrochemical tests showed that the uniform nitrogen-doped carbon coating and the nitrogen-doped LZTO favor electron transfer,while the defects induced by nitrogen-doping in LZTO promote Li-ion *** enhanced electronic and ionic conductivities are favorable to alleviate the polarization during cycling,and thus are responsible for the optimized performance.

关键词： Conductivity Polyacrylonitrile Li_(2)ZnTi_(3)O_(8) Carbon coating N-doping

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