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Variations in the mental health and sense of coherence (SOC) of new graduate nurses and the effects of SOC on variations in mental health
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作者 Tomoko Takeuchi Taisuke Togari +2 位作者 Makoto Oe Yukie Takemura Hiromi Sanada 《Open Journal of Nursing》 2013年第1期122-129,共8页
The current research conducted a longitudinal study of new graduate nurses at 3 times-prior to their employment as nurses and 3 months and 1 year afterward. This study yielded 3 findings. 1) The mental health of new g... The current research conducted a longitudinal study of new graduate nurses at 3 times-prior to their employment as nurses and 3 months and 1 year afterward. This study yielded 3 findings. 1) The mental health of new graduate nurses significantly worsens 3 months after employment as a nurse and mental health 1 year after employment as a nurse was significantly worse than that before employment. 2) A sense of coherence (SOC) is the ability to cope with stressors, and the 3 components of SOC decreased significantly in the year after employment as a nurse. 3) The mental health of new graduate nurses was significantly affected by a low SOC and by previous diminishing of SOC. Findings suggested the importance of support to sustain and improve the mental health of new graduate nurses and the importance of approaches in the workplace to encourage the development of SOC. 展开更多
关键词 Longitudinal Study MENTAL Health New GRADUATE Nurses SENSE of COHERENCE (soc)
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基于SABO-GRU-Attention的锂电池SOC估计
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作者 薛家祥 王凌云 《电源技术》 CAS 北大核心 2024年第11期2169-2173,共5页
提出一种基于SABO-GRU-Attention(subtraction average based optimizer-gate recurrent unitattention)的锂电池SOC(state of charge)估计方法。采用基于平均减法优化算法自适应更新GRU神经网络的超参数,融合SE(squeeze and excitation... 提出一种基于SABO-GRU-Attention(subtraction average based optimizer-gate recurrent unitattention)的锂电池SOC(state of charge)估计方法。采用基于平均减法优化算法自适应更新GRU神经网络的超参数,融合SE(squeeze and excitation)注意力机制自适应分配各通道权重,提高学习效率。对马里兰大学电池数据集进行预处理,输入电压、电流参数,进行锂电池充放电仿真实验,并搭建锂电池荷电状态实验平台进行储能锂电池充放电实验。结果表明,提出的SOC神经网络估计模型明显优于LSTM、GRU以及PSO-GRU等模型,具有较高的估计精度与应用价值。 展开更多
关键词 soc估计 SABO算法 GRU神经网络 Attention机制
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Cardiac fibroblast-specific expression of IL-37 confers the protective effects on fibrosis in diabetic cardiomyopathy mice by regulating SOCS3-STAT3 axis
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作者 Qing-Yu HUANG Jian LI +7 位作者 Tong-Qing CHEN Yi-Ming WANG Xiao-Yan SHEN Hai-Ming SHI Xin-Ping LUO Bo JIN Yan YOU Bang-Wei WU 《Journal of Geriatric Cardiology》 SCIE CAS CSCD 2024年第11期1060-1070,共11页
Background Human interleukin(IL)-37 is a constituent of the IL-1 family with potent anti-inflammatory and immunosuppressive attributes.It has been demonstrated extensive beneficial effects on various diseases;however,... Background Human interleukin(IL)-37 is a constituent of the IL-1 family with potent anti-inflammatory and immunosuppressive attributes.It has been demonstrated extensive beneficial effects on various diseases;however,its role in the pathogenesis of diabetic cardiomyopathy(DCM)remains unclear.Methods In vivo,DCM mouse model was established with streptozotocin injection and a high-fat diet in WT and cardiac fibroblasts(CFs)specific hIL-37b overexpression mice(IL-37-Tg).In vitro,primary mouse CFs were isolated from the hearts of adult mice and cultured with high levels of glucose and palmitic acid.Cardiac function of the mice was assessed using echocardiography.Masson staining,immunofluorescence,western blot and RT-PCR assays were employed to evaluate the expression of cardiac fibrosis and SOCS3-JAK2-STAT3 signaling pathway-related proteins.Results In this study,we found that CFs specific IL-37-Tg significantly ameliorated cardiac dysfunction and reduced collagen production by inhibiting the JAK2-STAT3 axis,as evidenced by the decreased levels of p-JAK2 and p-STAT3 in the heart of CFs specific IL-37-Tg DCM mice.The beneficial effects of IL-37 were consistently observed in CFs treated with high glucose(HG)and palmitic acid(PA).Moreover,we also discovered that the presence of IL-37 increased the expression of SOCS3,a crucial regulator of JAK/STAT signaling,in DCM mice and HG and PA-treated CFs.Finally,the anti-fibrotic action of IL-37 in HG and PAtreated CFs was abolished when either SOCS3 was genetically knocked down or JAK2/STAT3 was pharmacologically activated.Conclusions Our findings indicate that IL-37 exerts its antifibrotic effect by promoting SOCS3-mediated JAK2-STAT3 inactivation and may be considered as a potential therapeutic agent for DCM. 展开更多
关键词 socS3 STAT3 protective
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Exploring the mechanism of electroacupuncture at different acupoints on acute colitis rats based on JAK2/STAT3/SOCS1 signaling pathway
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作者 ZHANG Chun-qing TANG Kun-peng +2 位作者 YAN Li-ping WEN Tan WANG Hai-jun 《Journal of Hainan Medical University》 CAS 2024年第3期1-7,共7页
Objective:To investigate the mechanism of JAK2/STAT3/SOCS1 signaling pathway in electroacupuncture of different acupoints on acute colitis rats.Methods:36 SPF SD rats were randomly divided into 6 groups,with 6 rats in... Objective:To investigate the mechanism of JAK2/STAT3/SOCS1 signaling pathway in electroacupuncture of different acupoints on acute colitis rats.Methods:36 SPF SD rats were randomly divided into 6 groups,with 6 rats in each group.The rat model of acute colitis was prepared by enema with glacial acetic acid solution.After the model was established,electroacupuncture was given to each acupoint group,with density wave,frequency 2Hz-50 Hz,intensity 2 mA,muscle tremor as the degree 20 min/time,1 time/day,for 3 consecutive days.Observe the general condition of rats;the pathological changes of colonic mucosa in rats were observed by HE method.The contents of serum interleukin-4(IL-4)and interleukin-8(IL-8)were detected by ELISA.Western blot and RT-PCR were used to detect the expression of JAK2,STAT3,SOCS1 protein and mRNA in rat colon tissue.Results:In contrast to the normal group,the overall condition of the model group was worse,the colonic mucosa was severely damaged,even necrotic,and the ulcer surface was obvious.The content of IL-4 in serum was obviously reduced,and the content of IL-8 was obviously go up(P<0.01).The protein content of JAK2,STAT3 and the expression of JAK2,STAT3 mRNA in colon tissue of rats were obviously go up,while the protein content of SOCS1 and the expression of SOCS1 mRNA were obviously reduced(P<0.01).In contrast to the model group,the general condition of rats in each acupoint group was significantly improved,the damage and necrosis of colonic mucosa and ulcer surface were obviously alleviated,the content of IL-4 in serum was obviously go up,and the content of IL-8 was significantly decreased(P<0.01).The protein content of JAK2,STAT3 and the expression of JAK2,STAT3 mRNA in colon tissue of rats were obviously reduced,while the protein content of SOCS1 and the expression of SOCS1 mRNA were obviously go up(P<0.05,P<0.01).Comparison of different acupoint groups,the colonic mucosal injury in the Zusanli group was significantly reduced,the content of serum IL-4 was significantly increased,and the content of IL-8 was significantly decreased(P<0.05,P<0.01).The protein content and mRNA expression of JAK2 and STAT3 in colon tissue were significantly down-regulated,while the protein content and mRNA expression of SOCS1 were significantly go up(P<0.05,P<0.01).Conclusion:Electroacupuncture at each acupoint can improve the damage of colonic mucosa and reduce the inflammatory response.The therapeutic effect of Zusanli(ST36)is better than that of Tianshu(ST25),Dachangshu(BL25)and Shangjuxu(ST37).The mechanism may be related to the regulation of JAK2/STAT3/SOCS1 signaling pathway related proteins and inflammatory cytokines IL-4 and IL-8. 展开更多
关键词 ELECTROACUPUNCTURE Different acupoints Acute colitis Inflammatory factors JAK2/STAT3/socS1 signaling pathway
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基于Python脚本的SoC寄存器模块自动化设计
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作者 周国飞 《软件》 2024年第5期169-171,共3页
片上系统芯片(SoC)包含大量可通过系统总线配置的寄存器模块。在芯片设计流程中,需要人工设计寄存器模块功能,并形成可阅读的设计文档,再由硬件描述语言(Hardware Description Language)描述为实际数字电路,还需要有便于芯片仿真验证的... 片上系统芯片(SoC)包含大量可通过系统总线配置的寄存器模块。在芯片设计流程中,需要人工设计寄存器模块功能,并形成可阅读的设计文档,再由硬件描述语言(Hardware Description Language)描述为实际数字电路,还需要有便于芯片仿真验证的寄存器模型以及基于C语言的嵌入式固件程序用于应用软件开发。本文提供一种基于Python脚本语言的芯片设计流程,将上述芯片设计流程串联起来,做到一次规格设计,自动化输出寄存器模块的不同设计描述,有效提高了SoC芯片设计效率。 展开更多
关键词 soc芯片 寄存器设计 AMBA总线 APB接口 Python脚本
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Analysis of the Tragedy of Vila Socóin Cubatão (São Paulo, Brazil) Using the Haddon Matrix: A Comprehensive Examination of Socio-Environmental Factors and Risk Mitigation Strategies
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作者 Rubens Martins Santos Nilce Ortiz Sabine Neusatz Guilhen 《Journal of Environmental Protection》 2024年第5期620-639,共20页
The tragedy of Vila Socó epitomizes the socio-environmental repercussions of rapid industrialization in Cubatão. Beginning in the 1940s with the construction of the Anchieta highway, the city experienced an ... The tragedy of Vila Socó epitomizes the socio-environmental repercussions of rapid industrialization in Cubatão. Beginning in the 1940s with the construction of the Anchieta highway, the city experienced an influx of migrants drawn by burgeoning industries, leading to unplanned urban growth and the emergence of vulnerable communities like Vila Socó. This article examines the interconnected factors—such as demographic shifts, inadequate planning, and regulatory oversight—that culminated in the devastating fire of 1984, claiming numerous lives and highlighting systemic failures. Utilizing the Haddon Matrix, this study dissects the Vila Socó incident, emphasizing the roles of human error, infrastructure integrity, and socio-economic disparities in disaster causation. By contextualizing the tragedy within Cubatão’s industrial trajectory, it underscores the urgent need for comprehensive risk assessment and proactive mitigation strategies in rapidly developing regions globally. Beyond its immediate focus, this work offers broader insights into the dynamics of industrial disasters and their socio-economic implications. As pipelines continue to play a vital role in global energy infrastructure, the lessons drawn from Vila Socó’s tragedy resonate deeply, emphasizing the imperative of robust safety protocols and accountable governance to prevent similar catastrophes in the future. 展开更多
关键词 Haddon Matrix Vila socó Accident Risk Analysis Cubatão
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An Ensemble Learning Method for SOC Estimation of Lithium-Ion Batteries Using Machine Learning
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作者 Yirga Eyasu Tenawerk Linqing Xia +3 位作者 Jingfei Fu Wanwen Wu Zewei Quan Wu Zhen 《Journal of Electronic Research and Application》 2024年第6期136-144,共9页
Accurately assessing the State of Charge(SOC)is paramount for optimizing battery management systems,a cornerstone for ensuring peak battery performance and safety across diverse applications,encompassing vehicle power... Accurately assessing the State of Charge(SOC)is paramount for optimizing battery management systems,a cornerstone for ensuring peak battery performance and safety across diverse applications,encompassing vehicle powertrains and renewable energy storage systems.Confronted with the challenges of traditional SOC estimation methods,which often struggle with accuracy and cost-effectiveness,this research endeavors to elevate the precision of SOC estimation to a new level,thereby refining battery management strategies.Leveraging the power of integrated learning techniques,the study fuses Random Forest Regressor,Gradient Boosting Regressor,and Linear Regression into a comprehensive framework that substantially enhances the accuracy and overall performance of SOC predictions.By harnessing the publicly accessible National Aeronautics and Space Administration(NASA)Battery Cycle dataset,our analysis reveals that these integrated learning approaches significantly outperform traditional methods like Coulomb counting and electrochemical models,achieving remarkable improvements in SOC estimation accuracy,error reduction,and optimization of key metrics like R2 and Adjusted R2.This pioneering work propels the development of innovative battery management systems grounded in machine learning and deepens our comprehension of how this cutting-edge technology can revolutionize battery technology. 展开更多
关键词 soc Lithium-ion batteries Random Forest Regressor Gradient Boosting Regressor Machine Learning
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基于WISHBONE的SoC接口设计 被引量:2
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作者 陆洪毅 戴葵 王志英 《计算机工程与科学》 CSCD 2003年第5期90-92,96,共4页
本文讨论了WISHBONE体系结构及其在SoC中的应用,并描述了在TS-1嵌入式微处理器中WISHBONE的设计与实现技术。
关键词 嵌入式微处理器 WISHBonE 体系结构 soc 接口 设计
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SOC estimation of lithium-ion power battery for HEV based on advanced wavelet neural network 被引量:3
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作者 付主木 赵瑞 《Journal of Southeast University(English Edition)》 EI CAS 2012年第3期299-304,共6页
In order to improve the estimation accuracy of the battery's state of charge(SOC) for the hybrid electric vehicle(HEV),the SOC estimation algorithm based on advanced wavelet neural network(WNN) is presented.Bas... In order to improve the estimation accuracy of the battery's state of charge(SOC) for the hybrid electric vehicle(HEV),the SOC estimation algorithm based on advanced wavelet neural network(WNN) is presented.Based on advanced WNN,the SOC estimation model of a lithium-ion power battery for the HEV is first established.Then,the convergence of the advanced WNN algorithm is proved by mathematical deduction.Finally,using an adequate data sample of various charging and discharging of HEV batteries,the neural network is trained.The simulation results indicate that the proposed algorithm can effectively decrease the estimation errors of the lithium-ion power battery SOC from the range of ±8% to ±1.5%,compared with the traditional SOC estimation methods. 展开更多
关键词 wavelet neural network state of charge(soc hybrid electric vehicle lithium-ion power battery
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SoC设计中WISHBONE片上总线的设计与开发 被引量:1
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作者 宋廷强 刘川来 周艳 《青岛科技大学学报(自然科学版)》 CAS 2003年第5期439-442,共4页
讨论了 WISHBONE片上总线的主要实现技术及其在 So C可重用设计中的主要作用 ,以及 WISHBONE体系结构在 So C中的应用 ,并以 EPStar1嵌入式微处理器中WISHBONE的设计与实现为例 ,说明了采用 WISHBONE片上总线实现 So C可重用设计的方法。
关键词 soc WISHBonE IP核 片上总线 系统集成芯片 可重用设计
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基于多新息最小二乘和多新息扩展卡尔曼滤波算法的锂电池SOC估计 被引量:2
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作者 巫春玲 付俊成 +3 位作者 徐先峰 孟锦豪 郑克军 胡雯博 《华南理工大学学报(自然科学版)》 EI CAS CSCD 北大核心 2024年第2期74-83,共10页
针对现有SOC(荷电状态)估计方法中电池模型参数恒定,没有考虑电池模型参数的动态变化,导致SOC的估计不够精准的问题,文中提出了一种基于电池模型参数在线辨识与SOC估计联合的算法。在二阶RC等效电路模型基础上,采用多新息最小二乘(Multi... 针对现有SOC(荷电状态)估计方法中电池模型参数恒定,没有考虑电池模型参数的动态变化,导致SOC的估计不够精准的问题,文中提出了一种基于电池模型参数在线辨识与SOC估计联合的算法。在二阶RC等效电路模型基础上,采用多新息最小二乘(Multi Innovation Least Squares,MILS)算法对锂离子电池模型中的参数进行在线辨识,从而对电池模型进行实时修正;同时基于修正后的电池模型,采用多新息扩展卡尔曼滤波(Multi Innovation Extended Kalman Filter,MIEKF)算法对电池荷电状态进行估计。MILS算法可以解决在线参数辨识过程中的初始误差累积问题,能够实现模型参数的在线精准辨识,MIEKF算法融合了多新息理论和卡尔曼滤波理论,加入了遗忘因子以削弱历史数据并修正权重,解决了数据过饱和问题,具有较高的准确性和收敛性。实验结果表明,在对电池模型进行参数辨识时,MILS算法、RLS算法辨识的均方根误差分别为1.4、1.9 mV,MILS算法相比RLS算法的估计精度提高了26.3%;对于参数辨识后SOC的估计,MIEKF算法估计的均方根误差为0.0037,EKF算法、AEKF算法估计的均方根误差分别为0.0073、0.0052,MIEKF算法比EKF算法的估计精度提高了49.31%,比AEKF算法的估计精度提高了28.84%;并且在给定SOC初值错误的情况下,文中所提出算法在电池开始工作后30 s左右就能够收敛到真实值,是一种精度高而且鲁棒性好的有效估计方法。 展开更多
关键词 soc估计 多新息 参数辨识 扩展卡尔曼滤波
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考虑应力特征的锂离子电池SOC估算 被引量:2
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作者 徐元中 章俊 +1 位作者 常春 姜久春 《电池》 CAS 北大核心 2024年第4期477-481,共5页
准确估计荷电状态(SOC)是保证锂离子电池可靠运行的基础。提出基于多维特征特别是结合力信号的数据驱动的SOC估算方法,对锂离子电池应力特征进行Savitzky-Golay(S-G)滤波,形成优化重构后的应力信号。提出基于麻雀搜索算法(SSA)改进的反... 准确估计荷电状态(SOC)是保证锂离子电池可靠运行的基础。提出基于多维特征特别是结合力信号的数据驱动的SOC估算方法,对锂离子电池应力特征进行Savitzky-Golay(S-G)滤波,形成优化重构后的应力信号。提出基于麻雀搜索算法(SSA)改进的反向传播(BP)神经网络,提高神经网络的全局寻优能力。用恒流(CC)、联邦城市驾驶工况(FUDS)进行评估。在BP神经网络中,相比于单纯使用电信号,考虑应力特征的SOC估算的均方根误差(RMSE)降低89.1%,平均绝对误差(MAE)降低88.8%,考虑应力特征的SSA-BP神经网络的SOC估算误差在0.3%以内,鲁棒性和精确性更高。 展开更多
关键词 荷电状态(soc) 锂离子电池 应力 神经网络 麻雀搜索算法(SSA)
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考虑时变线阻的多储能SOC稳定均衡控制策略 被引量:1
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作者 卢志刚 苗泽裕 蔡瑶 《高电压技术》 EI CAS CSCD 北大核心 2024年第1期127-137,共11页
在直流微电网中,由于线路阻抗大小差异的复杂化,难以保证各储能单元之间达到荷电状态(state-of-charge,SOC)均衡。为此,提出一种考虑时变线阻的SOC均衡改进控制策略。首先,通过线路阻抗和SOC幂指数构造的平衡因子来修正控制系数,提高SO... 在直流微电网中,由于线路阻抗大小差异的复杂化,难以保证各储能单元之间达到荷电状态(state-of-charge,SOC)均衡。为此,提出一种考虑时变线阻的SOC均衡改进控制策略。首先,通过线路阻抗和SOC幂指数构造的平衡因子来修正控制系数,提高SOC的辨识度。同时,利用输出电流来约束平衡因子,提高系统的抗扰能力。在SOC均衡之后,SOC平衡因子G变为1,此时依赖线路阻抗信息但不受线路阻抗变化影响,可平稳地保持电流分配。并且结合输出电流构造的电压补偿环节有效地解决了母线电压质量和SOC均衡控制效果之间的矛盾。其次,针对基于SOC均衡的改进控制策略易受恒功率负载影响的问题,利用混合势函数理论进行建模,得到稳定性判据,有利于保障系统的稳定运行。最后,仿真结果表明,所提出的改进下垂控制能够有效地消除线路阻抗的影响,提高电流分配精度,实现SOC均衡,并验证了在各种突发扰动及极端情况下所提控制策略的有效性和正确性。 展开更多
关键词 直流微电网 储能系统 下垂控制 soc均衡 混合势函数理论
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与Wishbone协议兼容的可裁剪SOC接口协议设计
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作者 殷树娟 李翔宇 《微电子学与计算机》 CSCD 北大核心 2015年第6期58-61,共4页
可裁剪SOC设计具有最精简的结构和资源,可以获得最高的实现效率,能适应应用多样性的需求.提出一种兼容Wishbone接口协议的可裁剪SOC的接口协议,详细介绍了可裁剪SOC的IP接口总体结构、接口定义及接口适配器的具体实现形式.该协议的优点... 可裁剪SOC设计具有最精简的结构和资源,可以获得最高的实现效率,能适应应用多样性的需求.提出一种兼容Wishbone接口协议的可裁剪SOC的接口协议,详细介绍了可裁剪SOC的IP接口总体结构、接口定义及接口适配器的具体实现形式.该协议的优点是与Wishbone接口兼容,通用性强,适用于当前低功耗、高能效、即插即用的SOC系统设计,可实现满足异质多功能模块SOC灵活配置. 展开更多
关键词 WISHBonE 可裁剪soc 接口 协议
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基于LEON3的SoC平台搭建与流水灯控制验证
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作者 陈荣军 刘松劲 +1 位作者 谭洪舟 丁颜玉 《电子设计工程》 2013年第4期8-10,共3页
随着芯片设计技术的快速发展,基于SoC的开发平台已成为IC设计业界的热点,对SoC应用设计平台需求越来越多,同时对其性能要求也越来越高。因此本文提出了一种基于LEON3的精简的,灵活的,高性能的硬件平台的搭建方案,通过介绍基于32位的开源... 随着芯片设计技术的快速发展,基于SoC的开发平台已成为IC设计业界的热点,对SoC应用设计平台需求越来越多,同时对其性能要求也越来越高。因此本文提出了一种基于LEON3的精简的,灵活的,高性能的硬件平台的搭建方案,通过介绍基于32位的开源LEON3处理器,并将其与其他开源处理器比较,讨论了LEON3在开源,配置灵活以及强大的功能等方面的优势,最后通过在LEON3平台运行流水灯程序,验证了平台的可行性,达到预期效果。 展开更多
关键词 FPGA LEon3 soc DE2-115
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一种支持SoC数字电路老化及寿命的评估方法 被引量:1
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作者 陈朝晖 张弛 +3 位作者 刘玮 宋玉祥 刘潇骁 唐诗怡 《微电子学》 CAS 北大核心 2024年第3期511-516,共6页
使用Spice可靠性仿真技术和高温稳态寿命(HTOL)实验相结合的方法,研究不同的MOSFET器件组成的环振电路在持续翻转状态下,不同应力时间和应力电压对其寿命退化的影响。依据仿真结果和Power-Law模型建立数字电路的寿命预测理论模型。通过H... 使用Spice可靠性仿真技术和高温稳态寿命(HTOL)实验相结合的方法,研究不同的MOSFET器件组成的环振电路在持续翻转状态下,不同应力时间和应力电压对其寿命退化的影响。依据仿真结果和Power-Law模型建立数字电路的寿命预测理论模型。通过HTOL实验验证模型的准确性。结果表明,随着时间的增加,器件的寿命退化率逐渐增加,且随着时间的推移,寿命的变化率越来越小。随着应力电压的增加,器件的寿命退化率更快趋向于稳定。器件退化符合R-D模型,仿真结果与试验结果高度,进一步证实了本模型对SoC数字电路寿命预测的准确性。通过这种组合仿真和实验的方法,可以更加准确地评估数字电路的寿命,为芯片制造过程中的可靠性设计提供参考。 展开更多
关键词 soc数字电路 环振电路 SPICE仿真 Power-Law模型 R-D模型 高温稳态寿命
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基于CSO-AUKF的锂电池SOC估算方法 被引量:1
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作者 吴华伟 洪强 +1 位作者 陈运星 马毓博 《重庆交通大学学报(自然科学版)》 CAS CSCD 北大核心 2024年第9期118-126,共9页
电池荷电状态(SOC)估算是电池管理系统(BMS)的关键技术之一。针对锂电池提出了一种基于猫群(CSO)算法和自适应无迹卡尔曼滤波(AUKF)算法相结合的电池SOC估算方法;建立了基于二阶RC等效电路模型的锂电池状态方程,采用CSO算法提高电池辨... 电池荷电状态(SOC)估算是电池管理系统(BMS)的关键技术之一。针对锂电池提出了一种基于猫群(CSO)算法和自适应无迹卡尔曼滤波(AUKF)算法相结合的电池SOC估算方法;建立了基于二阶RC等效电路模型的锂电池状态方程,采用CSO算法提高电池辨识精度,联合AUKF算法对SOC进行估算;基于混合脉冲功率测试工况(HPPC)和间歇恒流放电工况下的数据对该方法有效性进行了验证。研究结果表明:基于CSO-AUKF估算,SOC最大误差小于1.64%,估算精度及稳定性均好于遗传算法。 展开更多
关键词 车辆工程 锂电池汽车 荷电状态(soc) 猫群(CSO)算法 自适应无迹卡尔曼滤波(AUKF)算法
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LEON3处理器动态图像边缘检测的SoC设计
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作者 李贞妮 李晶皎 李亮 《单片机与嵌入式系统应用》 2014年第2期57-60,共4页
针对LEON3开源软核处理器具有高性能,高可靠性等特征,构建了一个基于LEON3的动态图像边缘检测SoC。文中采用局部熵边缘检测算法,将图像采集,边缘检测和图像显示三个部分封装设计为IP核,通过APB总线嵌入到LEON3的经典SoC架构中。与利用... 针对LEON3开源软核处理器具有高性能,高可靠性等特征,构建了一个基于LEON3的动态图像边缘检测SoC。文中采用局部熵边缘检测算法,将图像采集,边缘检测和图像显示三个部分封装设计为IP核,通过APB总线嵌入到LEON3的经典SoC架构中。与利用微控制器或DSP实现的动态图像边缘检测系统相比,基于LEON3的动态图像边缘检测SoC能够充分发挥硬件设计的高速性和灵活性,并且系统具有很好的可移植性与可配置性,占用资源少,速度快,具有良好的应用前景。 展开更多
关键词 动态图像边缘检测 局部熵算法 IP LEon3 soc
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锂电池自适应无迹H∞滤波SOC估计研究 被引量:1
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作者 钱伟 赵大中 +2 位作者 郭向伟 王亚丰 李文静 《储能科学与技术》 CAS CSCD 北大核心 2024年第11期4078-4088,共11页
荷电状态(state of charge,SOC)作为表征锂电池剩余电量的关键指标,其精确估计对于合理使用电池电量、保障电池安全具有重要意义。本文针对基于H∞滤波(H infinity filter,HIF)估计SOC时鲁棒性好但估计精度低的问题,提出一种自适应无迹... 荷电状态(state of charge,SOC)作为表征锂电池剩余电量的关键指标,其精确估计对于合理使用电池电量、保障电池安全具有重要意义。本文针对基于H∞滤波(H infinity filter,HIF)估计SOC时鲁棒性好但估计精度低的问题,提出一种自适应无迹H∞滤波(adaptive unscented H infinity filter,AU_HIF)SOC估计方法,以提高SOC估计精度。首先,选择能够在精度和复杂度间取得良好平衡的双极化(dual polarization,DP)等效电路模型进行新型估计算法的设计;其次,结合无迹卡尔曼滤波(unscented Kalman filter,UKF)算法相比于传统扩展卡尔曼滤波(extended Kalman filter,EKF)算法更适用于非线性系统状态估计的特点,文章基于先验误差协方差矩阵设计新型渐消因子,实现自适应无迹H∞滤波算法的设计,以减小陈旧测量值对估计结果的影响,提高滤波算法的跟踪能力及估计精度。最后,通过搭建自主实验平台获取实际模拟工况数据,验证了文章所提自适应无迹H∞滤波算法相比于传统H∞滤波算法、传统UKF算法和其他类型改进H∞滤波算法具有更高的估计精度及更好的鲁棒性。文章研究内容对提高新能源汽车、储能电站等电池系统的SOC估计精度具有重要意义。 展开更多
关键词 锂电池 soc H∞滤波 DP模型 渐消因子
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DNMT1通过SOCS1影响高糖诱导足细胞凋亡和炎性细胞因子释放
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作者 黄存军 刘韵 +5 位作者 欧秋娟 戴洪波 何阶德 黄朦 梁航 陈筱涛 《免疫学杂志》 CAS CSCD 2024年第3期265-271,共7页
目的探讨DNA甲基转移酶1(DNMT1)对高糖(HG)诱导足细胞凋亡和炎性细胞因子释放的影响,并分析相关分子机制。方法体外培养足细胞MPC-5细胞,设立Control组和HG组,采用小RNA干扰技术和脂质体转染技术沉默或过表达DNMT1、SOCS1。采用qRT-PCR... 目的探讨DNA甲基转移酶1(DNMT1)对高糖(HG)诱导足细胞凋亡和炎性细胞因子释放的影响,并分析相关分子机制。方法体外培养足细胞MPC-5细胞,设立Control组和HG组,采用小RNA干扰技术和脂质体转染技术沉默或过表达DNMT1、SOCS1。采用qRT-PCR法检测DNMT1、SOCS1基因表达;流式细胞术检测细胞凋亡;ELISA法检测细胞中炎症因子[肿瘤坏死因子-α(TNF-α)、白细胞介素-6(IL-6)、白细胞介素-1β(IL-1β)、单核细胞趋化蛋白-1(MCP-1)]水平;Western blot法检测DNMT1、SOCS1蛋白及酪氨酸激酶2(JAK2)/信号转导与转录激活因子3(STAT3)信号通路蛋白表达。结果HG升高了MPC-5细胞凋亡率、炎症因子水平、DNMT1 mRNA表达以及DNMT1、p-JAK2、p-STAT3蛋白表达,降低了SOCS1 mRNA和蛋白表达(P<0.05)。沉默DNMT1表达和过表达SOCS1均降低了MPC-5细胞凋亡率、炎症因子水平及p-JAK2、p-STAT3蛋白表达(P<0.05)。沉默DNMT1表达升高了SOCS1 mRNA和蛋白表达(P<0.05)。沉默SOCS1表达可逆转沉默DNMT1表达对MPC-5细胞凋亡、炎症以及p-JAK2、p-STAT3蛋白表达的影响。结论沉默DNMT1表达能够减轻HG诱导的足细胞凋亡和炎症反应,其作用机制可能与上调SOCS1表达抑制JAK2/STAT3信号通路活化有关。 展开更多
关键词 DNMT1 socS1 足细胞 高糖 凋亡
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