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Chinese Journal of Electronics 2024年第4期33卷 886-898页

作者： yuanlong cao Junjie LI Kailin CHAO Jianmao XIAO Gang LEI School of Computer Information Engineering Jiangxi Normal University Jiangxi Blockchain Data Security and Governance Engineering Research Center Jiangxi Normal University School of Software Jiangxi Normal University

The rapid development of Internet of things(Io T) and edge computing technologies has brought forth numerous possibilities for the intelligent and digital future. The frequent communication and interaction between devices inevitably generate a large amount of sensitive information. Deploying a blockchain network to store sensitive data is crucial for ensuring privacy and security. The openness and synchronicity of blockchain networks give rise to challenges such as transaction privacy and storage capacity issues, significantly impeding their development in the context of edge computing and Io T. This paper proposes a reliable fog computing service solution based on a blockchain fog architecture. This paper stores data files in the inter planetary file system(IPFS) and encrypts the file hash values used for retrieving data files with stream cipher encryption. It employs a steganographic transmission technique leveraging Alpha Zero's Gomoku algorithm to discretely transmit the stream cipher key across the blockchain network without a carrier, thus achieving dual encryption. This approach aims to mitigate the storage burden on the blockchain network while ensuring the security of transaction data. Experimental results demonstrate that the model enhances the transmission capacity of confidential information from kilobytes(KB) to megabytes(MB) and exhibits high levels of covert and security features.

关键词： Steganography Ciphers Privacy Data privacy Blockchains Encryption Internet of Things

大学生自我控制与睡前拖延的关系——基于未来时间洞察力的中介作用

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黑龙江科学 2024年第17期15卷 77-79页

作者：曹元龙姜淑梅吉林师范大学教育科学学院吉林四平136000

为探讨大学生未来时间洞察力对自我控制与睡前拖延的作用,在吉林省、辽宁省的两所大学中选取471名大学生作为调研对象,运用自我控制量表、未来时间洞察力问卷、睡前拖延问卷等对其自控力、未来时间洞察力及睡前拖延状况进行测量,使用PRO... 详细信息

为探讨大学生未来时间洞察力对自我控制与睡前拖延的作用,在吉林省、辽宁省的两所大学中选取471名大学生作为调研对象,运用自我控制量表、未来时间洞察力问卷、睡前拖延问卷等对其自控力、未来时间洞察力及睡前拖延状况进行测量,使用PROCESS中介效应检验分析未来时间洞察力在自我控制与睡前拖延间的中介作用。结果表明,SCS总评分与青少年未来时间洞察力问卷总评分呈正相关关系,睡前拖延问卷总评分与青少年未来时间洞察力问卷总评分呈负相关关系,自我控制与未来时间洞察力均能负向预测睡前拖延,自我控制能够正向预测未来时间洞察力,即大学生自我控制可以直接影响睡前拖延,也可通过未来时间洞察力间接影响睡前拖延,未来时间洞察力在自我控制与睡前拖延之间起部分中介效应。

关键词：大学生自我控制未来时间洞察力睡前拖延

基于NS-3网络模拟器的MPQUIC协议仿真研究

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南京大学学报（自然科学版） 2024年第4期60卷 625-632页

作者：聂金全樊越华吴骏逸章志明雷刚曹远龙江西师范大学软件学院南昌330022 江西省区块链数据安全与治理工程研究中心南昌330022

随着5G移动视频应用加速落地以及国内视频流需求的迅速激增,迫切需要一种新的数据传输协议来提供可靠的安全性,以保障上层应用处理更多的接入连接以及满足更低的延时需求.多路径QUIC协议(Multipath Quick UDP Internet Connection,MPQU... 详细信息

随着5G移动视频应用加速落地以及国内视频流需求的迅速激增,迫切需要一种新的数据传输协议来提供可靠的安全性,以保障上层应用处理更多的接入连接以及满足更低的延时需求.多路径QUIC协议(Multipath Quick UDP Internet Connection,MPQUIC)具有拟合多条链路带宽资源、强大连接的容错能力和高可靠性等优点,被认为将在未来移动互联网数据传输中发挥重要的作用.然而,目前国内外研究人员对于MPQUIC协议的相关研究正处于初步阶段,该协议还没有一个普适性的、开源的仿真平台.因此,借助全球网络仿真领域应用最广的NS-3网络模拟器搭建了MPQUIC仿真平台(ns3-mpquic),为相关学者提供研究MPQUIC协议的开源、免费、普适的基础平台,为全球专家学者对MPQUIC协议的模拟部署和优化提供助力.

关键词：多路径传输 MPQUIC NS-3网络模拟器仿真平台

Qos-driven SCTP-based multimedia delivery over heterogeneous wireless networks

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Science China(Information Sciences) 2014年第10期57卷 56-65页

作者： cao yuanlong XU ChangQiao GUAN JianFeng ZHANG HongKe State Key Laboratory of Networking and Switching Technology Beijing University of Posts and Telecommunications Institute of Sensing Technology and Business Beijing University of Posts and Telecommunications National Engineering Laboratory for Next Generation Internet Interconnection Devices Beijing Jiaotong University

Stream Control Transport Protocol(SCTP)-based handover is supposedly the best suit for current mobile Internet users. However, prevalent SCTP-based handover solutions mostly evaluate candidate networks by a function of multiple attributes such as available bandwidth, delay, etc., which tend to vary often in burst and might cause the instability of handover decisions. Moreover, the SCTP congestion control strategy leads to sudden degradation of users’ quality of experience for multimedia streaming service because of abrupt and frequent strong fluctuations in the transmission rate. In this paper, we propose a novel QoS-driven SCTPbased handover solution(SCTP-QD) appropriate for heterogeneous wireless multimedia transmission. A new network service and transport layer QoS-aware model is designed to help SCTP-QD accurately analyze the service stability and data transmission capacity for each path. A proper QoS-driven handover decision model is introduced in SCTP-QD in order to improve the SCTP handover efficiency while reducing unnecessary handoffs and fail-over probability. A proposal is finally addressed to help SCTP-QD avoid the slow start phase whenever handover occurs. The simulation results show that SCTP-QD outperforms existing solutions in terms of data delivery performance.

关键词： multimedia communication SCTP congestion control path management handover

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电驱传动斜齿轮的稳态温度场和热变形场研究

机械设计与研究 2024年第4期40卷 198-206页

作者：苏越胡飞罗彪曹远龙赵柏程李振国南华大学机械工程学院湖南衡阳421001 衡阳泰豪通信车辆有限公司湖南衡阳421001

为了得到电驱传动斜齿轮的稳态温度场和热变形场,基于斜齿轮的啮合原理以及传热学、摩擦学等理论推导得到了斜齿轮啮合面的平均摩擦热流密度以及其他各表面对流换热系数的计算方法。基于APDL语言建立了斜齿轮参数化热分析模型,得到了斜... 详细信息

为了得到电驱传动斜齿轮的稳态温度场和热变形场,基于斜齿轮的啮合原理以及传热学、摩擦学等理论推导得到了斜齿轮啮合面的平均摩擦热流密度以及其他各表面对流换热系数的计算方法。基于APDL语言建立了斜齿轮参数化热分析模型,得到了斜齿轮的稳态温度场和热变形场,揭示了不同的齿轮模型对稳态温度场和热变形场的影响规律。研究结果表明,稳态温度场呈梯度变化,其中啮合面的温度最高,轮毂温度最低;在啮合面上存在两个明显的高温区域,分别位于两个双齿啮合区内;在齿高方向上,齿面温度呈类“M”形分布,主动轮啮入端双齿啮合区内的最高温度靠近齿根位置,而啮出端双齿啮合区内的最高温度靠近齿顶位置;在齿宽方向,齿面温度呈非对称分布,对于顺时针旋转的右旋主动轮,啮入端双齿啮合区内的高温区靠近齿轮的前端面,而啮出端双齿啮合区内的高温区靠近齿轮的后端面。由于变形的累积斜齿轮总体热变形量齿顶最大,轮毂最低,最大变形区域位于齿轮两端面附近。考虑啮合线方向的变形量时,在齿宽方向,后端面的热变形大于前端面,与温度沿齿宽分布一致。为了节约计算成本,在计算稳态温度场时可以用单齿模型代替全齿模型且具有较高的精度,但是计算热变形场时只有全齿模型才是准确的,其他模型均存在较大的误差。

关键词：斜齿轮有限元稳态温度场热变形场

Mobility and constant-orientation workspace analysis of 4UPS-UPU parallel mechanism

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High Technology Letters 2014年第2期20卷 124-130页

作者：雷静桃 Hu Lei cao yuanlong Wang Tianmiao School of Mechatronic Engineering and Automation Shanghai University School of Mechanical Engineering and Automation Beihang University

One of the key issues for parallel mechanism is the kinematic characteristics,especially the workspace which varies with configuration parameters.A kind of 4UPS-UPU parallel mechanism is designed and its workspace is studied in this ***,the mobility of the 4UPS-UPU parallel mechanism is analyzed based on the reciprocal screw theory,and the motion and constraint screw systems of the parallel mechanism are *** the inverse kinematics is derived by the closed-form kinematics *** boundary search method in the polar coordinate system is presented to analyze the constant-orientation workspace of the parallel ***,the influence factors relevant to the workspace,such as the structural parameters and kinematics parameters are analyzed in *** relationship between the workspace volume and different parameters are *** conclusions can be used for parameters optimization and path planning of the parallel mechanism.

关键词： parallel mechanism (PM) screw theory mobility boundary search method workspace

QoE-Driven Energy-Aware Multipath Content Delivery Approach for MPTCP-Based Mobile Phones

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China Communications 2017年第2期14卷 90-103页

作者： yuanlong cao Shengyang Chen Qinghua Liu Yi Zuo Hao Wang Minghe Huang School of Software Jiangxi Normal University Nanchang 330022 China Performance Engineering Laboratory Dublin City University Ireland Jiangxi innovation funds management center for small and medium-sized enterprises Nanchang 330046 China

Mobile phones equipped with multiple wireless interfaces can increase their goodput performance by making use of concurrent transmissions over multiple paths, enabled by the Multipath TCP （MPTCP）. However, utilizing MPTCP for data delivery may generally result in higher energy consumption, while the battery power of a mobile phone is limited. Thus, how to optimize the energy usage becomes very crucial and urgent. In this paper, we propose MPTCP-QE, a nov- el quality of experience （QoE）-driven energy-aware multipath content delivery approach for MPTCP-based mobile phones. The main idea of MPTCP-QE is described as follows： it first provides an application rate-aware energy-efficient subflow management strategy to tradeoff throughput performance and energy consumption for mobile phones; then uses an available bandwidth-aware congestion window fast recovery strategy to make a sender avoid unnecessary stow-start and utilize wireless resource quickly; and further introduces a novel receiver-driven energy-efficient SACK strategy to help a receiver possible to detect SACK loss timely and trigger loss recovery in a more energy-efficient way. The simulation results show that with the MPTCP-QE, the energy usage is enhanced while the performance level is maintained compared to existing MPTCP solutions.

关键词： energy consumption video transport multipath TCP traffic offioading

Research on a multi‑dimensional image information fusion algorithm based on NSCT transform

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Frontiers of Optoelectronics 2024年第1期17卷 29-44页

作者： Yuxiang Su Xi Liang Danhua cao Zhenyu Yang yuanlong Peng Ming Zhao School of Optical and Electronic Information Huazhong University of Science and TechnologyWuhan 430074China State Grid Information and Telecommunication Branch Beijing 100761China

Traditional inspection cameras determine targets and detect defects by capturing images of their light intensity,but in complex environments,the accuracy of inspection may *** based on polarization of light can characterize various features of a material,such as the roughness,texture,and refractive index,thus improving classification and recognition of *** paper uses a method based on noise template threshold matching to denoise and preprocess polarized *** also reports on design of an image fusion algorithm,based on NSCT transform,to fuse light intensity images and polarized *** results show that the fused image improves both subjective and objective evaluation indicators,relative to the source image,and can better preserve edge information and help to improve the accuracy of target *** study provides a reference for the comprehensive application of multi-dimensional optical information in power inspection.

关键词： Power inspection Object detection Polarization imaging Image fusion Image denoising

MBE:A Music Copyright Depository Framework Incorporating Blockchain and Edge Computing

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Computer Systems Science & Engineering 2023年第12期47卷 2815-2834页

作者： Jianmao Xiao Ridong Huang Jiangyu Wang Zhean Zhong Chenyu Liu yuanlong cao Chuying Ouyang School of Software Jiangxi Normal UniversityNanchang330027China Department of Physics Jiangxi Normal UniversityNanchang330027China

Audio copyright is a crucial issue in the music industry,as it protects the rights and interests of creators and *** paper studies the current situation of digital music copyright certification and proposes a music copyright certification framework based on“blockchain+edge computing mode,”abbreviated as MBE,by integrating edge computing into the Hyperledger Fabric *** framework compresses and splits the audio into small chunks,performs Fast Fourier Transform(FFT)to extract the peak points of each frequency and combines them to obtain unique audio fingerprint *** being confirmed by various nodes on the Fabric alliance chain,audio fingerprint information and copyright owner information are recorded on the chain and broadcast to all *** technology’s characteristics of being tamper-proof and traceable not only reform the trust mechanism of copyright protection but also endow edge computing with the ability to resist tampering and single-point attack,greatly enhancing the robustness of the music copyright certification ***,edge computing mode improves Fabric blockchain’s processing speed and transaction *** results show that MBE’s performance is better than traditional systems regarding efficiency,storage demand and *** to the traditional Fabric system without edge computing mode,MBE exhibits a 53%higher deposition efficiency and a 48%lower storage space requirement.

关键词： Blockchain copyright protection audio fingerprinting smart contracts

M-LABEL:A NAMING SCHEME FOR SERVICES IN FUTURE NETWORKS

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M-LABEL:A NAMING SCHEME FOR SERVICES IN FUTURE NETWORKS