检索结果-南通市图书馆

Topology Identification and Inner Desynchronization of Hindmarsh-Rose Neural Networks

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Topology Identification and Inner Desynchronization of Hindm...

基于微信小程序的道岔质量管理系统的设计与实现

第32届中国控制与决策会议

作者： Yan li Hui liu zengyang li School of Artificial Intelligence and Automation Huazhong University of Science and Technology School of Computer Science Central China Normal University

Topology identification of biological neural networks has received great attention in recent years.But most existing researches ignored the importance of linear independence condition.Once network occurs inner synchronization,such a condition would inevitably break,which could lead to the failure of topology identification.However,synchronous firing between neurons is unavoidable in biological neural network.This phenomenon makes it difficult to identify the topology of neural networks.In this paper,we proposed a new method to identify Hindmarsh-Rose Neural Networks.By this method,the original neural network can implement inner desynchronization and the topology observers can successfully identify the unknown topology.It is worth mentioning that the our method can ensure that the linear independence condition naturally holds.This means that topology identification will not meet with failure.Finally,the effectiveness of the proposed method is successfully validated by numerical simulations.

关键词： Hindmarsh-Rose Neural Network Topology Identification Inner Desynchronization

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

铁路计算机应用 2021年第5期30卷 70-73页

作者：李增阳中国铁建重工集团股份有限公司道岔分公司株洲412005

针对成品高速道岔检验时文件依据查找困难、统计分析滞后、报检检验无序、信息反馈繁琐等问题,设计了一款基于微信小程序的高速道岔质量管理系统。该系统在微信客户端运行,使用微信开发者工具进行云开发。该系统的使用有效减少了查找文... 详细信息

针对成品高速道岔检验时文件依据查找困难、统计分析滞后、报检检验无序、信息反馈繁琐等问题,设计了一款基于微信小程序的高速道岔质量管理系统。该系统在微信客户端运行,使用微信开发者工具进行云开发。该系统的使用有效减少了查找文件的耗时,能实现道岔质量情况的实时统计,检验反馈更为便利,有效优化道岔质量管理工作流程,为相关工作人员提供便捷、信息化的使用体验。

关键词：微信小程序高速道岔质量管理质量检验移动端

Multi-Agent Formation Design Considering Minimum Fuel Consumption

在线全文

学校读者我要写书评

暂无评论

Multi-Agent Formation Design Considering Minimum Fuel Consum...

Projective Synchronization of a Fifth-order Memristor-Based Chaotic Circuit

第32届中国控制与决策会议

作者： Ye Wang Hui liu zengyang li School of Artificial Intelligence and Automation Huazhong University of Science and Technology School of Computer Science Central China Normal University

Formation control of multiple autonomous robots is an important part of autonomous robot research. And theoretical research should be based on reality. Therefore, thinking of each robot as an agent, this article considers the problems in actual situation of multi-agent formation control, namely energy consumption. The formation is accompanied by energy consumption. If fuel conservation is not considered, it will lead to three problems: 1. Environmental pollution;2. The formation task cannot be carried out for a long time;3. Carrying a large amount of fuel will definitely affect the flexibility of autonomous robots. Therefore, how to reduce energy consumption while implementing formation tasks is the focus of this paper. In this paper, the directed graph in graph theory is used to simulate the communication links between multi-agents for continuous systems and discrete systems in general linear systems. According to the linear quadratic method, optimal controllers are designed respectively to realize the control of target formation. At the same time, fuel consumption is reduced as much as possible to achieve the minimum performance index.

关键词： Multi-agent system Formation control Optimal control Energy conservation Graph theory

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Projective Synchronization of a Fifth-order Memristor-Based ...

第三十九届中国控制会议

作者： Jun Chi Hui liu zengyang li School of Artificial Intelligence and Automation Huazhong University of Science and Technology School of Computer Science Central China Normal University

Projective synchronization and its control have recently been well investigated in chaotic system,but with uncertain parameters in memristor-based circuit has less involved.Compared with the traditional resistor,memristor is a kind of nonlinear device with memory function,which plays an important role in the design and application of chaotic system.In this paper,we present the study of projective synchronization of a fifth-order memristor-based chaotic circuit proposed in 2011 [1].With certain/uncertain parameters,using adaptive control method and the Lyapunov stability theory,projective synchronization are achieved by designing nonlinear controllers,and uncertain parameters can be identified at the same time.The effectiveness of this method is verified by numerical simulations.

关键词： synchronization memristor fifth-order system unknown parameter

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

频移间隔可切换的MWBEFL输出特性研究

光通信技术 2018年第7期42卷 34-37页

作者：李曾阳周雪芳樊冰周豫杭州电子科技大学通信工程学院杭州310018

为满足不同频率间隔需求,使用了两个三端口环形器,设计了一种频移间隔可切换的多波长布里渊掺铒光纤激光器(MWBEFL)。该光纤激光器使用两个三端口环形器组成不同环行腔可以分别得到与布里渊泵浦光相隔单倍布里渊频移和双倍布里渊频移的... 详细信息

为满足不同频率间隔需求,使用了两个三端口环形器,设计了一种频移间隔可切换的多波长布里渊掺铒光纤激光器(MWBEFL)。该光纤激光器使用两个三端口环形器组成不同环行腔可以分别得到与布里渊泵浦光相隔单倍布里渊频移和双倍布里渊频移的多个激光输出。实验证明,该设计能够实现频移间隔可切换的要求,分别获得26阶、10阶的单倍与双倍布里渊频移激光输出与数十纳米的调谐范围。最后,研究了布里渊泵浦光功率和980nm泵浦光功率对输出激光的影响。

关键词：多波长光纤激光器可调谐频移间隔可切换受激布里渊散射

在线全文

学校读者我要写书评

暂无评论

基于二氧化碳矿化固定的碳利用技术研究

河南科技 2024年第5期51卷 87-90页

作者：李东方黄增阳陈旭杨郑张曾燕平衢州职业技术学院机电工程学院浙江衢州324000 衢州市计量质量检验研究院浙江衢州324000 浙江商业职业技术学院应用工程学院浙江杭州310000 浙江象睿机电设备有限公司浙江衢州324000

【目的】碳利用技术难题是氟硅新材料产业发展过程中亟待解决的难题。通过对二氧化碳矿化固定的碳利用技术进行研究,以期为开发适合高耗能行业的规模化CO_(2)利用技术提供参考。【方法】分析了CO_(2)矿化固定的原理、方法和应用,研究了C... 详细信息

【目的】碳利用技术难题是氟硅新材料产业发展过程中亟待解决的难题。通过对二氧化碳矿化固定的碳利用技术进行研究,以期为开发适合高耗能行业的规模化CO_(2)利用技术提供参考。【方法】分析了CO_(2)矿化固定的原理、方法和应用,研究了CO_(2)养护反应系统和烟气CO_(2)直接矿化反应系统,用来实现建材预制构件制备和工业固废中的碱性废料处理。【结果】采用碳捕集、利用和封存(CCUS)技术进行CO_(2)矿化固定,能够实现大规模CO_(2)处理。在矿化固定技术的基础上,可建立碳利用技术开发测试平台,依托平台提供数据、方法、成套设备等方面的技术支撑。【结论】碳捕集、利用和封存(CCUS)技术在减缓气候变化和实现碳循环经济等方面具有潜力。

关键词： CO_(2)矿化固定碳利用技术碳循环

维普期刊数据库博看期刊

单模光纤中受激布里渊散射的Stokes光频移的温度传感特性研究

在线全文

学校读者我要写书评

暂无评论

传感技术学报 2018年第12期31卷 1811-1814页

作者：周豫周雪芳樊冰李曾阳胡淼毕美华杨国伟王天枢杭州电子科技大学通信工程学院杭州310018 长春理工大学空间光电技术国家有地方联合工程研究中心长春130022 长春理工大学空间光电技术研究所长春130022

首先从单模光纤中声学声子、泵浦光子和stokes光子的频率之间的波矢关系出发,理论推导了单模光纤中的stokes光频移与工作环境温度之间的传感模型。接着设计了一个基于受激布里渊散射(SBS)效应的多波长掺铒光纤激光器的结构装置,并实验... 详细信息

首先从单模光纤中声学声子、泵浦光子和stokes光子的频率之间的波矢关系出发,理论推导了单模光纤中的stokes光频移与工作环境温度之间的传感模型。接着设计了一个基于受激布里渊散射(SBS)效应的多波长掺铒光纤激光器的结构装置,并实验测试了该多波长光纤激光器的Stokes光频移随外界温度的变化曲线。实验结果表明:Stokes光频率漂移量和温度之间存在很好的线性关系,且随着温度的升高,高阶Stokes光频移对温度的频移系数高于低阶Stokes光。

关键词：多波长光纤激光器受激布里渊散射高阶Stokes 温度频率漂移

Phenotypic Characterization of Porcine IFNc-Producing Lymphocytes in Porcine Reproductive and Respiratory Syndrome Virus Vaccinated and Challenged Pigs

在线全文

学校读者我要写书评

暂无评论

Virologica Sinica 2018年第6期33卷 524-530页

作者： Xiangdong li zengyang Pei Yilin Bai lihua Wang Jishu Shi Kegong Tian National Research Center for Veterinary Medicine Zhengzhou 450002China Department of Anatomy and Physiology College of Veterinary MedicineKansas State UniversityLuoyang 471003China Department of Veterinary Medicine College of Animal ScienceZhejiang UniversityManhattan 66506USA College of Veterinary Medicine Northwest A&F UniversityYangling 712100China College of Animal Science and Veterinary Medicine Henan Agricultural UniversityHangzhou 310058China OIE Porcine Reproductive and Respiratory Syndrome Reference Laboratory China Animal Disease Control CenterBeijing 100125China

Porcine reproductive and respiratory syndrome(PRRS) continues to be one of the most important swine diseases worldwide. Interferon-γ(IFNγ)-mediated type Ⅰ cell-mediated immune response plays an important role in protection from,and clearance of, PRRS virus(PRRSV). Several lymphocyte subsets including T-helper, CTLs, Th/memory cells, and cd T lymphocytes were previously reported to produce IFNc during PRRSV infection. However, the proportion and phenotypic characterization of these IFNγ-secreting lymphocytes have not been explored. In this study, IFNc producted by different lymphocyte subsets was assessed by multi-color flow cytometry after vaccination with PRRSV modified live vaccine(PRRSV-MLV) and challenge with homogeneous or heterogeneous PRRSV. The results showed that T-helper cells were the major IFNγ-secreting cell population after PRRSV-MLV vaccination and PRRSV challenge. Additionally, the proportion of IFNγ producing Th/memory cells and γδ T cells increased after PRRSV challenge. This difference was accounted for an enhanced ability to produce IFNγ in Th/memory cells and an enlarged quantity of γδ T cells. The results presented here could contribute to our understanding of the roles of IFNγ in protective immunity against PRRSV infection and may be useful for assessment of cell-mediated immunity in vaccine tests.

关键词： Porcine reproductive and respiratory syndrome virus(PRRSV) Lymphocyte Interferon-γ(IFNγ)

中部地区县域城镇化动力机制研究——基于中介效应模型的分析

在线全文

学校读者我要写书评

暂无评论

财贸研究 2017年第4期28卷 25-32页

作者：汪增洋李刚安徽财经大学经济学院安徽蚌埠233030 安徽财经大学城市与县域经济研究中心安徽蚌埠233030

利用中介效应检验模型,实证研究了中部地区县域城镇化的动力机制,以更好推动中部地区县域城镇化发展。研究发现,产业非农化通过提高第二产业就业、第三产业就业以及收入水平驱动城镇化发展;工业化对县域城镇化的推动作用要大于经济服务... 详细信息

利用中介效应检验模型,实证研究了中部地区县域城镇化的动力机制,以更好推动中部地区县域城镇化发展。研究发现,产业非农化通过提高第二产业就业、第三产业就业以及收入水平驱动城镇化发展;工业化对县域城镇化的推动作用要大于经济服务化,工业化通过提高收入水平和带动服务业就业以提升城镇化水平,增加工业就业对提高城镇化水平的作用较小,而提高工业生产率是加快县域城镇化发展的关键;城市群中的县域城镇和大城市附近的县域城镇人口吸纳能力较强,是实现人口城镇化和城乡一体化发展的主要承载空间。

关键词：县域城镇化中部地区动力机制中介效应