检索结果-南通市图书馆

基于T-S模糊神经网络的光伏发电机组自动控制

在线全文

学校读者我要写书评

暂无评论

机械与电子 2024年第2期42卷 35-39页

作者：杨振睿沈主浮孙辰蔡斌姜宽国网上海市电力公司市区供电公司调度控制中心上海200080 国网上海市电力公司市区供电公司总师室上海200080

光照情况变化会使光伏发电机组功率呈现不稳定性,加大光伏发电机组控制难度,为此,设计了基于T-S模糊神经网络的光伏发电机组自动控制方法。构建光伏阵列数学模型,分析在均匀和不均匀2种光照情况下光伏发电机组特性曲线。以分析结果为依... 详细信息

光照情况变化会使光伏发电机组功率呈现不稳定性,加大光伏发电机组控制难度,为此,设计了基于T-S模糊神经网络的光伏发电机组自动控制方法。构建光伏阵列数学模型,分析在均匀和不均匀2种光照情况下光伏发电机组特性曲线。以分析结果为依据,采用T-S模糊神经网络构建光伏发电机组自动控制模型。为保证良好的控制效果,引入定比因子优化隶属度函数,输出最佳跟踪结果,结合最佳跟踪结果和自动控制模型实现光伏发电机组自动控制。测试结果显示,该方法能够完成光伏阵列特性分析,控制效果好。

关键词： T-S模糊神经网络光伏发电机组自动控制特性曲线最大功率点光照情况

Tunable luminescent CsPb_2Br_5 nanoplatelets:applications in light-emitting diodes and photodetectors

在线全文

学校读者我要写书评

暂无评论

Photonics Research 2017年第5期5卷 473-480页

作者： CENG HAN CUNLONG LI ZHIGANG ZANG MING WANG kuan sun XIAOSHENG TANG JIHE DU Key Laboratory of Optoelectronic Technology(Ministry of Education) Chongqing University Key Laboratory of Low-Grade Energy Utilization Technologies and Systems (Ministry of Education) Chongqing University

Unlike organic–inorganic hybrid perovskites, all-inorganic cesium lead halide perovskites hold great promise for developing high-performance optoelectronic devices, owing to their improved stability. Herein, we investigate the perovskite-related CsPb_2 Br_5 nanoplatelets(NPLs) with tunable emission wavelengths via changing the reaction temperatures to 100°C, 120°C, and 140°C. Reaction temperature plays a key role in determining the shapes and thicknesses of the resulting CsPb_2 Br_5 NPLs. A higher temperature is in favor of the formation of smaller and thicker NPLs. To develop their potential applications in optoelectronic devices, green light emitting diodes(LEDs) and photodetectors based on CsPb_2 Br_5 NPLs are fabricated. The green LEDs based on CsPb_2 Br_5 NPLs synthesized at 140°C exhibit an excellent pure green emission(full width at half-maximum of <20 nm) and display a luminous efficiency of 34.49 lm∕W under an operation current of 10 m A. Moreover, the photodetector based on CsPb_2 Br_5 NPLs synthesized at 100°C has better performance with a rise time of 0.426 s, a decay time of0.422 s, and a ratio of the current(with and without irradiation) of 364%.

关键词： Cs Pb Br Tunable luminescent CsPb2Br5 nanoplatelets:applications in light-emitting diodes and photodetectors

特种设备检验检测安全标准化及其与HSE管理体系融合研究

在线全文

学校读者我要写书评

暂无评论

中国标准化 2024年第16期 170-173页

作者：钱冰王保兴姚新宽孙伟松山东省淄博市特种设备检验研究院

随着工业技术的不断发展,特种化设备的应用日益广泛。为确保特种化设备的安全运行,检验检测安全体系的建立至关重要。HSE管理体系在企业管理中能够兼顾环境和健康管理标准要求,其应用越来越广泛。本文针对目前特种设备检验检测安全工作... 详细信息

随着工业技术的不断发展,特种化设备的应用日益广泛。为确保特种化设备的安全运行,检验检测安全体系的建立至关重要。HSE管理体系在企业管理中能够兼顾环境和健康管理标准要求,其应用越来越广泛。本文针对目前特种设备检验检测安全工作标准化管理现状,研究对比分析了特种设备检验检测安全标准体系和HSE管理体系的异同,提出了特种设备检验检测安全标准化及其与HSE管理体系融合的建议,为进一步完善特种设备检验检测安全管理标准体系,提高管理的整体水平,保障安全生产提供借鉴。

关键词：特种设备检验检测安全标准化 HSE管理体系融合研究

维普期刊数据库博看期刊

HRPDF: A Software-Based Heterogeneous Redundant Proactive Defense Framework for Programmable Logic Controller

在线全文

学校读者我要写书评

暂无评论

Journal of Computer Science & Technology 2021年第6期36卷 1307-1324页

作者： Ke Liu Jing-Yi Wang Qiang Wei Zhen-Yong Zhang Jun sun Rong-kuan Ma Rui-Long Deng State Key Laboratory of Mathematical Engineering and Advanced Computing Zhengzhou 450001China College of Control Science and Engineering Zhejiang UniversityHangzhou 310027China College of Computer Science and Technology Guizhou UniversityGuiyang 550025China School of Information Systems Singapore Management UniversitySingapore 689867Singapore

Programmable logic controllers(PLCs)play a critical role in many industrial control systems,yet face increasingly serious cyber *** this paper,we propose a novel PLC-compatible software-based defense mechanism,called Heterogeneous Redundant Proactive Defense Framework(HRPDF).We propose a heterogeneous PLC architecture in HRPDF,including multiple heterogeneous,equivalent,and synchronous runtimes,which can thwart multiple types of attacks against PLC without the need of external *** ensure the availability of PLC,we also design an inter-process communication algorithm that minimizes the overhead of *** implement a prototype system of HRPDF and test it in a real-world PLC and an OpenPLC-based device,*** results show that HRPDF can defend against multiple types of attacks with 10.22%additional CPU and 5.56%additional memory overhead,and about 0.6 ms additional time overhead.

关键词： industrial control system programmable logic controller proactive defense heterogeneous redundant architecture

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

婴幼儿短纯音听性脑干反应阈预测模型研究

中华耳科学杂志 2024年第4期22卷 562-566页

作者：马孝宝沈佳丽汪玮孙进王璐贺宽杨军陈向平陈建勇上海交通大学医学院附属新华医院耳鼻咽喉头颈外科上海200092 上海交通大学医学院耳科学研究所、上海市耳鼻疾病转化医学重点实验室

目的通过短声听性脑干反应阈(click auditory brainstem responses,c-ABR)及500 Hz短纯音听性脑干反应阈(500 Hz-tone burst ABR,tb-500 Hz),预测tb-1000 Hz、tb-2000 Hz及tb-4000 Hz的反应阈,为临床婴幼儿tb-ABR反应阈预估及测试组合提供参考。方法选取65例(118耳)婴幼儿作为研究对象,年龄分布在2~36月龄,平均月龄13.9±2.8月。分别进行c-ABR、tb-500 Hz、tb-1000 Hz、tb-2000 Hz、tb-4000 Hz反应阈测试。随机选取60耳以tb-500 Hz和c-ABR反应阈建立预测tb-1000 Hz、tb-2000 Hz、tb-4000 Hz反应阈的多元线性回归方程,余58耳使用配对t检验和Bland-Altman法验证方程预测值与实际所测得的tb-1000 Hz、tb-2000 Hz、tb-4000 Hz反应阈的关系。结果tb-1000 Hz、tb-2000 Hz和tb-4000 Hz三组多元线性回归方程分别为:Y1=1.698+0.578X_(1)+0.382X_(2),R^(2)=0.924,P<0.001;Y2=1.814+0.230X_(1)+0.722X_(2),R^(2)=0.933,P<0.001;Y4=4.735-0.018X_(1)+0.969X_(2),R^(2)=0.920,P<0.001。配对t检验显示,tb-1000 Hz实测值与方程预测值差异不存在统计学意义(P=0.271),tb-2000 Hz和tb-4000 Hz实测值与方程预测值差异存在统计学意义(P=0.006,P=0.008)。Bland-Altman法显示三组实测值与方程预测值差值超出95%一致限(limits of agreement,LoA)的95%置信区间(confidence interval,CI)均<5%。结论本研究建立的多元线性回归方程可预测tb-1000 Hz、tb-2000 Hz、tb-4000 Hz反应阈,快速获得受试儿各频率反应阈,节省测试时间。临床诊断时,可优先组合c-ABR和tb-500 Hz反应阈,若条件允许,可进一步完成tb-1000 Hz、tb-2000 Hz和tb-4000 Hz的反应阈测试。

关键词：婴幼儿短纯音听性脑干反应阈预测模型

Extracellular and Intracellular Calcium both Involved in the Jasmonic Acid Induced Calcium Mobilization in Arabidopsis thaliana

在线全文

学校读者我要写书评

暂无评论

Agricultural Sciences in China 2010年第4期9卷 497-503页

作者： sun Qing-peng YU Yong-kun WAN Shan-xia ZHAO Fu-kuan HAO Yu-lan Department of Biotechnology Beijing University of Agriculture Beijing 102206 P.R.China Center of Tissue Culture Beijing University of Agriculture Beijing 102206 P.R.China

The objective of this experiment is to evaluate the role of intracellular and extracellular Ca2＋ and calmodulin （CAM） in jasmonic acid （JA） signaling. The laser scanning microscopy was used to detect the changes of [Ca2＋]cyt of Arabidopsis thaliana leaf cells which pretreated with different types of calcium channel blocker. Moreover, the expression of VSP, one of JA response genes, was also investigated after pretreated with the above blocker and antagonist of CaM. The results showed that extracellular and intracellular calcium both involved in the JA-induced Ca2＋ mobilization, and then Ca2＋ exerted its functions through activating the CaM or CaM related proteins. The apoplast calcium influx and the calcium release from the calcium stores are both involved in the JA-induced calcium mobilization, then the JA-induced Ca2＋ transmited the JA signal through CaM or CaM related proteins, and regulated the JA responsive genes.

关键词： Arabidopsis thaliana Ca2+ jasmonic acid CaM

Transcriptome sequencing and experiments reveal the effect of formyl peptide receptor 2 on liver homeostasis

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2023年第24期29卷 3793-3806页

作者： Hui Liu Ze-Yu sun Hua Jiang Xu-Dong Li Yong-Qiang Jiang Peng Liu Wen-Hua Huang Qing-Yu Lv xiang-Lilan Zhang Rong-kuan Li Department of Gastroenterology Second Hospital of Dalian Medical UniversityDalian 116000Liaoning ProvinceChina State Key Laboratory of Pathogen and Biosecurity Institute of Microbiology and EpidemiologyAcademy of Military Medical SciencesBeijing 100071China Microbiology Teaching and Research Office Anhui Medical UniversityHefei 230032Anhui ProvinceChina Department of Infectious Diseases Second Hospital of Dalian Medical UniversityDalian 116000Liaoning ProvinceChina

BACKGROUND Formyl peptide receptor 2(Fpr2)is an important receptor in host resistance to bacterial *** previous studies,we found that the liver of Fpr2-/-mice is the most severely damaged target organ in bloodstream infections,although the reason for this is *** To investigate the role of Fpr2 in liver homeostasis and host resistance to bacterial *** Transcriptome sequencing was performed on the livers of Fpr2-/-and wild-type(WT)*** expressed genes(DEGs)were identified in the Fpr2-/-and WT mice,and the biological functions of DEGs were analyzed by Gene Ontology(GO)and Kyoto Encyclopedia of Genes and Genomes(KEGG)enrichment *** real time-polymerase chain reaction(qRT-PCR)and western blot(WB)analyses were used to further validate the expression levels of differential *** counting kit-8 assay was employed to investigate cell *** cell cycle detection kit was used to measure the distribution of cell *** Luminex assay was used to analyze cytokine levels in the *** serum biochemical indices and the number of neutrophils in the liver were measured,and hepatic histopathological analysis was *** Compared with the WT group,445 DEGs,including 325 upregulated genes and 120 downregulated genes,were identified in the liver of Fpr2-/-*** enrichment analysis using GO and KEGG showed that these DEGs were mainly related to cell *** qRT-PCR analysis confirmed that several key genes(CycA,CycB1,Cdc20,Cdc25c,and Cdk1)involved in the cell cycle had significant *** WB analysis confirmed a decrease in the expression of CDK1 ***4(an antagonist of Fpr2)could inhibit the proliferation of HepG2 cells in a concentration dependent manner,with an increase in the number of cells in the G0/G1 phase,and a decrease in the number of cells in the S *** alanine aminotransferase levels increased in Fpr2-/-*** Luminex assay measurements showed that interleukin

关键词： Cell cycle Cell proliferation Cdk1 Differentially expressed genes Formyl peptide receptor 2 RNA-sequencing

Accelerated discovery of novel high-performance zinc-ion battery cathode materials by combining high-throughput screening and experiments

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

中国化学快报:英文版 2023年第8期34卷 315-321页

作者： Haoran Luo Jiangbin Deng Qianzhi Gou Omololu Odunmbaku kuan sun Juanxiu Xiao Meng Li Yujie Zheng MOE Key Laboratory of Low-grade Energy Utilization Technologies and Systems School of Energy and Power EngineeringChongqing UniversityChongqing 400044China State Key Laboratory of Marine Resource Utilization in South China Sea School of Chemical Engineering and TechnologyHainan UniversityHaikou 570228China

Aqueous zinc ion batteries(AZIBs)have attracted much attention in recent years due to their high safety,low cost,and decent electrochemical ***,the traditional electrodes development process requires tedious synthesis and testing procedures,which reduces the efficiency of developing highperformance battery ***,we proposed a high-throughput screening strategy based on firstprinciples calculations to aid the experimental development of high-performance spinel cathode materials for *** obtained 14 spinel materials from 12,047 Mn/Zn-O based materials by examining their structures and whether they satisfy the basic properties of *** their band structures and density of states,open circuit voltage and volume expansion rate,ionic diffusion coefficient and energy barrier were further evaluated by first-principles calculations,resulting in five potential *** of the promising candidates identified,Mg_(2)MnO_(4),was experimentally synthesized,characterized and integrated into an AZIB based cell to verify its performance as a *** Mg_(2)MnO_(4)cathode exhibits excellent cycling stability,which is consistent with the theoretically predicted low volume ***,at high current density,the Mg_(2)MnO_(4)cathode still exhibits high reversible capacity and excellent rate performance,indicating that it is an excellent cathode material for *** work provides a new approach to accelerate the development of high-performance cathodes for AZIBs and other ion batteries.

关键词： Aqueous zinc ion battery Spinel High-throughput First-principles calculations Experiment Accelerate

在线全文

学校读者我要写书评

暂无评论

朱元璋出生地考略

安徽史学 2010年第2期 83-89页

作者：孙祥宽凤阳县文物管理所安徽凤阳233100

朱元璋在世时,多次阐明其出生地在"钟离"或"钟离之东乡"。他的自述一直为明清官修史籍及绝大部分私家著述所沿用。然而在他死后不久,伴随其降生前后流传的"圣瑞"之象,即出现生于异地盱眙的说法。从正德年间起,稗官野史和方志中"圣瑞"之... 详细信息

朱元璋在世时,多次阐明其出生地在"钟离"或"钟离之东乡"。他的自述一直为明清官修史籍及绝大部分私家著述所沿用。然而在他死后不久,伴随其降生前后流传的"圣瑞"之象,即出现生于异地盱眙的说法。从正德年间起,稗官野史和方志中"圣瑞"之象及出生盱眙的具体地点越说越混乱。随着时间的推移,出生地逐渐指向盱眙太平乡或灵迹乡二郎庙旁;该处划归嘉山县(明光市)后,又云"生于二郎庙中"(位于今安徽明光市明光街道办事处赵府村)。根据当事人自述为第一采信之原则,并结合现有的大量文献资料分析推论,朱元璋的准确出生地应在钟离,即今天的凤阳县境内。

关键词：朱元璋出生地钟离说盱眙说