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STUDY AND ANALYSIS ON technology AND DEVELOPMENT OF INFORMATION NETWORK OF RURAL POWER GRID

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STUDY AND ANALYSIS ON TECHNOLOGY AND DEVELOPMENT OF INFORMAT...

The Second IFIP International Conference on computer and Computing Technologies in Agriculture (CCTA2008)

作者： Weiying li* college of Information science and {3. Agriculture university of HeBeii HeBei Baoding 071001 china

This paper describes the technology and transferring mode of rural power grid’s information network, analyses technology of communication system of electric power grid in rural area, chooses a new develop direction o... 详细信息

关键词： rural power grids Information network SDH MSTP

Modularized and Parametric Modeling technology for Finite Element Simulations of Underground engineering under Complicated Geological Conditions

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computer Modeling in engineering & {3.s 2024年第7期140卷 621-645页

作者： Jiaqi Wu li Zhuo Jianliang Pei Yao li Hongqiang Xie Jiaming Wu Huaizhong liu State Key Laboratory of Hydraulics and Mountain River engineering College of Water Resource and HydropowerSichuan UniversityChengdu610065China Research Institute of Testing and Inspection Sinohydro Bureau 7 Co.Ltd.Chengdu610213China

The surrounding geological conditions and supporting structures of underground engineering are often updated during construction,and these updates require repeated numerical *** improve the numerical modeling efficiency of underground engineering,a modularized and parametric modeling cloud server is developed by using Python *** basic framework of the cloud server is as follows:input the modeling parameters into the web platform,implement Rhino software and FLAC3. software to model and run simulations in the cloud server,and return the simulation results to the web *** modeling program can automatically generate instructions that can run the modeling process in Rhino based on the input modeling *** main modules of the modeling program include modeling the 3. geological structures,the underground engineering structures,and the supporting structures as well as meshing the geometric *** particular,various cross-sections of underground caverns are crafted as parametricmodules in themodeling *** and parametric modeling program is used for a finite element simulation of the underground powerhouse of the Shuangjiangkou Hydropower *** complicatedmodel is rapidly generated for the simulation,and the simulation results are ***,this modularized and parametric modeling program is applicable for three-dimensional finite element simulations and analyses.

关键词： Underground engineering modularized and parametric modeling finite element method complex geological structure cloud modeling

Multi-dimensional multiplexing optical secret sharing framework with cascaded liquid crystal holograms

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Opto-Electronic Advances 2024年第1期7卷 28-35页

作者： Keyao li Yiming Wang Dapu Pi Baoli li Haitao Luan Xinyuan Fang Peng Chen Yanqing Lu Min Gu Institute of Photonic Chips University of Shanghai for Science and TechnologyShanghai 200093China Centre for Artificial-Intelligence Nanophotonics School of Optical-Electrical and Computer EngineeringUniversity of Shanghai for Science and TechnologyShanghai 200093China National Laboratory of Solid State Microstructures and College of Engineering and Applied SciencesNanjing UniversityNanjing 210093China

Secret sharing is a promising technology for information encryption by splitting the secret information into different ***,the traditional scheme suffers from information leakage in decryption process since the amount of available information channels is ***,we propose and demonstrate an optical secret sharing framework based on the multi-dimensional multiplexing liquid crystal(LC)*** LC holograms are used as spatially separated shares to carry secret *** polarization of the incident light and the distance between different shares are served as secret keys,which can significantly improve the information security and ***,the decryption condition is also restricted by the applied external voltage due to the variant diffraction efficiency,which further increases the information *** implementation,an artificial neural network(ANN)model is developed to carefully design the phase distribution of each LC *** the advantage of high security,high capacity and simple configuration,our optical secret sharing framework has great potentials in optical encryption and dynamic holographic display.

关键词： holographic encryption optical secret sharing cascaded liquid crystal hologram multi-dimensional multiplexing

基于Sybil攻击的无线传感器网络可信路由策略

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计算机工程与应用 2009年第35期45卷 123-125页

作者：张留敏李腊元武汉理工大学计算机科学与技术学院武汉430063

无线传感器网络中高敏感度数据传输业务要求路由协议设计时必须考虑能量与安全约束。在分析和研究Sybil攻击的基础上,在路由选择过程中考虑节点的信任度评价,实现对DD路由算法的改进,并对改进前后路由算法作了充分的理论性分析及仿真实... 详细信息

无线传感器网络中高敏感度数据传输业务要求路由协议设计时必须考虑能量与安全约束。在分析和研究Sybil攻击的基础上,在路由选择过程中考虑节点的信任度评价,实现对DD路由算法的改进,并对改进前后路由算法作了充分的理论性分析及仿真实验比较,为可信路由体系的研究提供了思路。

关键词：无线传感器网络定向扩散(DD)算法 Sybil攻击可信路由

Using Mobile Agents to Implement Workflow System

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Using Mobile Agents to Implement Workflow System

The First Conference on Web Information System and Applications

作者： li Jie, liU Xian-xing, GUO Zheng-wei college of {3. science and Information engineering. Henan university, Kaifeng 175001, Henan, china

＜正＞ Current workflow management systems usually adopt the existing technologies such as TCP/IP-based Web technologies and CORBA as well to fulfill the bottom communications. Very often it has been considered only from a theoretical point of view, mainly for the lack of concrete possibilities to execute with elasticity. MAT （Mobile Agent technology） represents a very attractive approach to the distributed control of computer networks and a valid alternative to the implementation of strategies for workflow system. This paper mainly focuses on improving the performance of workflow system by using MAT. Firstly, the performances of workflow systems based on both CORBA and mobile agent are summarized and analyzed;Secondly, the performance contrast is presented by introducing the mathematic model of each kind of data interaction process respectively. Last, a mobile agent-based workflow system named MAWMS is presented and described in detail.

关键词： workflow Mobile Agent Contract Net Protocol CORBA Web

A Bayesian Framework for Target Tracking in Sensor Networks

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A Bayesian Framework for Target Tracking in Sensor Networks

第二十六届中国控制会议

作者： Cheng Yuanguo 1,2,li Guohui 2 1.Electrical engineering college,Navy engineering university,Wuhan 43.03.,P.R.china 2.computer college,Huazhong university of science and technology,Wuhan 43.047,P.R.china

The work described in this paper presents a framework to track a moving target in sensor *** framework employs a method based on Bayesian classification to calculate the detection probabilities and proposes a tracking algorithm by defining the moving scope of a target,where the sensors have the higher values of detection *** re-sults show this scheme is effective.

关键词： Sensor Networks Target Tracking Bayesian Classification

An object detection approach with residual feature fusion and second-order term attention mechanism

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CAAI Transactions on Intelligence technology 2024年第2期9卷 411-424页

作者： Cuijin li Zhong Qu Shengye Wang college of computer science and {3. Chongqing University of Posts and TelecommunicationsChongqingChina college of Electronic Information Chongqing Institute of EngineeringChongqingChina

Automatically detecting and locating remote occlusion small objects from the images of complex traffic environments is a valuable and challenging *** the boundary box location is not sufficiently accurate and it is difficult to distinguish overlapping and occluded objects,the authors propose a network model with a second-order term attention mechanism and occlusion ***,the backbone network is built on *** a method is designed for the feature extraction network based on an item-wise attention mechanism,which uses the filtered weighted feature vector to replace the original residual fusion and adds a second-order term to reduce the information loss in the process of fusion and accelerate the convergence of the ***,an objected occlusion regression loss function is studied to reduce the problems of missed detections caused by dense *** experimental results demonstrate that the authors’method achieved state-of-the-art performance without reducing the detection *** mAP@.5 of the method is 85.8%on the Foggy_cityscapes dataset and the mAP@.5 of the method is 97.8%on the KITTI dataset.

关键词： artificial intelligence computer vision image processing machine learning neural network object recognition

Research of New Campus Cultural Construction in New Period

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Research of New Campus Cultural Construction in New Period

2010 International Conference on Management science and engineering (MSE 2010)

作者： Pan An 1 college of Land and Resources china West Normal university Nanchong city Sichuan Province 63.009 china 2 college of earth science Chengdu university of technology Chengdu city Sichuan Province 610000 china HU li-Hui college of computer science china West Normal university Nanchong city Sichuan Province 63.009 china

Currently it is new campus cultural construction that important bottleneck of high education development become from quantity to quality in *** on the analysis characteristics and problems of new campus culture construction in the process of campus development,such as,blind pool in the construction of new campus culture,mainstream culture guided insufficiency,lack of tradition,etc and puts forward the problems of the new campus cultural construction,the new campus development should pay much attention to the new campus culture,teachers and students build in both,if played advantages of campus cultural heritage,innovation and dissemination,it will remain forever young and vibrant.

关键词： New Campus Campus Culture Inheriting Innovation

MADDPG-D2: An Intelligent Dynamic Task Allocation Algorithm Based on Multi-Agent Architecture Driven by Prior Knowledge

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computer Modeling in engineering & {3.s 2024年第9期140卷 2559-2586页

作者： Tengda li Gang Wang Qiang Fu college of Air and Missile Defense Air Force Engineering UniversityXi’an710051China

Aiming at the problems of low solution accuracy and high decision pressure when facing large-scale dynamic task allocation(DTA)and high-dimensional decision space with single agent,this paper combines the deep reinforce-ment learning(DRL)theory and an improved Multi-Agent Deep Deterministic Policy Gradient(MADDPG-D2)algorithm with a dual experience replay pool and a dual noise based on multi-agent architecture is proposed to improve the efficiency of *** algorithm is based on the traditional Multi-Agent Deep Deterministic Policy Gradient(MADDPG)algorithm,and considers the introduction of a double noise mechanism to increase the action exploration space in the early stage of the algorithm,and the introduction of a double experience pool to improve the data utilization rate;at the same time,in order to accelerate the training speed and efficiency of the agents,and to solve the cold-start problem of the training,the a priori knowledge {3. is applied to the training of the ***,the MADDPG-D2 algorithm is compared and analyzed based on the digital battlefield of ground and air *** experimental results show that the agents trained by the MADDPG-D2 algorithm have higher win rates and average rewards,can utilize the resources more reasonably,and better solve the problem of the traditional single agent algorithms facing the difficulty of solving the problem in the high-dimensional decision *** MADDPG-D2 algorithm based on multi-agent architecture proposed in this paper has certain superiority and rationality in DTA.

关键词： Deep reinforcement learning dynamic task allocation intelligent decision-making multi-agent system MADDPG-D2 algorithm