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电子技术（上海） 2024年第6期53卷 32-33页

作者：丁宇杰中国电信股份有限公司大丰分公司江苏224100

阐述5G无线网络部署应用的重要性,能够提升数据信息传播效率及稳定性、促动互联技术领域发展、推动经济增长和科技创新。针对5G无线网络部署应用的难点,提出5G无线网络部署应用的策略。

关键词： 5G移动通信应用场景新型无线网络

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电磁成型工艺对钛合金表面强化性能的影响

兵器材料科学与工程 2024年第2期47卷 42-47页

作者：王哲峰宋鹤丁昱杰沈阳航空航天大学航空制造工艺数字化国防重点学科实验室辽宁沈阳110136 沈阳航空航天大学航空宇航学院辽宁沈阳110136

为提高TC4钛合金板材表面硬度,用电磁成型工艺,通过改变冲击电压、冲击次数、驱动片等参数对TC4钛合金板材进行试验。用高精度维式硬度计、有限元模拟、数据拟合软件等对试验结果进行分析。结果表明:电磁成型工艺可一定程度强化TC4钛合... 详细信息

为提高TC4钛合金板材表面硬度,用电磁成型工艺,通过改变冲击电压、冲击次数、驱动片等参数对TC4钛合金板材进行试验。用高精度维式硬度计、有限元模拟、数据拟合软件等对试验结果进行分析。结果表明:电磁成型工艺可一定程度强化TC4钛合金表面,经强化处理的TC4钛合金板材,硬度最大为377.2HV,比原始硬度提升了约10.94%。此外,不同试验条件对试验结果的影响不同。冲击电压过大及冲击次数过多都使试件的硬度低于原始试件。

关键词：电磁成型电磁脉冲表面硬度强化 TC4板材

Water film coated composite liquid metal marble and its fluidic impact dynamics phenomenon

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Frontiers in Energy 2016年第1期10卷 29-36页

作者： yujie ding Jing LIU Key Lab of Cryogenics and Beijing Key Lab of CryoBiomedicalEngineering Technical Institute of Physics and Chemistry ChineseAcademy of Sciences Beijing 100190 China Key Lab of Cryogenics and Beijing Key Lab of CryoBiomedicalEngineering Technical Institute of Physics and Chemistry ChineseAcademy of Sciences Beijing 100190 Department of Biomedical Engineering School of Medicine Tsinghua University Beijing 100084China

A composite liquid metal marble made of metal droplet coated with water film was proposed and its impact dynamics phenomenon was disclosed. After encapsulating the liquid metal into water droplets, the fabricated liquid marble successfully avoided being oxygenized by the metal fluid and thus significantly improved its many physical capabilities such as surface tension modification and shape control. The striking behaviors of the composite liquid metal marbles on a substrate at room temperature were experimentally inves- tigated in a high speed imaging way. It was disclosed that such marbles could disintegrate, merge, and even rebound when impacting the substrate, unlike the existing dynamic fluidic behaviors of liquid marble or metal droplet. The mechanisms lying behind these features were preliminarily interpreted. This fundamental finding raised profound multiphase fluid mechanics for understanding the complex liquid composite which was also critical for a variety of practical applications such as liquid metal jet cooling, inkjet printed electronics, 3D printing or metal particle fabrication etc.

关键词： liquid metal marble metallic droplet composite fluid impact dynamics multiphase fluid mechanics

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带状疱疹后遗神经痛中医治疗概况及优势

甘肃医药 2024年第5期43卷 410-413页

作者：丁玉洁祝劲松彭颖贵州中医药大学贵州贵阳550002 贵州中医药大学第一附属医院贵州贵阳550001

中医对带状疱疹后遗神经痛(PHN)的治疗经过历代医家的传承,在病因病机及辨证论治等多个方面积累了丰富的经验。目前主要的学术观点有从肝论治,从毒邪、本虚、血瘀论治等,标本兼顾,临床疗效确切。除此之外,中医治疗优势还包括辨证论治,... 详细信息

中医对带状疱疹后遗神经痛(PHN)的治疗经过历代医家的传承,在病因病机及辨证论治等多个方面积累了丰富的经验。目前主要的学术观点有从肝论治,从毒邪、本虚、血瘀论治等,标本兼顾,临床疗效确切。除此之外,中医治疗优势还包括辨证论治,随证加减;安全可靠,副作用小。治病求本和治未病思想的应用等,充分发扬了中医治病求本、辨证论治及治未病的思路,体现了中医药的广大应用前景。近几年来,中医对治疗PHN效果显著,因此本文系统搜集相关病因病机、辩证论证及中医治疗优势,为临床提供理论基础及诊疗新思路,提高临床疗效,减轻患者痛苦。

关键词：带状疱疹后遗神经痛中医治疗治病求本辨证论治治未病

Evaluating the Network Communication Delay with WAMS for Multi-energy Complementary Systems

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CSEE Journal of Power and Energy Systems 2020年第2期6卷 402-409页

作者： Xiaoli Liu Shuaidong Zhang Xianghui Zeng Lei Yao yujie ding Changhong Deng School of Electrical Engineering and Automation Wuhan UniversityWuhan 430072China GNSS Research Center Wuhan UniversityWuhan 430072China Electric Power Research Institute of State Grid Qinghai Electric Power Corporation Xining 810008China

A key infrastructure component of phasor-based wide-area monitoring and control systems(WAMCS)for multienergy systems is the requirement that the practical network communication should not only be reliable but also sufficiently effective to ensure real time monitoring and fast ***,the rise in the deployment of phasor measurement units(PMUs)has increased the effective attack surface available to attackers and wide area measurement system(WAMS)*** applications have strict and stringent delay request,*** to end delay as well as delay variation between measurements from different *** order to solve this problem,this paper proposed that the communication network hierarchy is an effective method for evaluating latency by considering the dynamic characteristics of the PMU data stream in the *** with the existing methods,where the upper bound of delay was given,the proposed method is approximated to the real latency in order to enhance the performance of the controller by considering the delay *** this paper,a three-layer hierarchical distributed topology structure of the WAMS communication network was therefore *** the dynamic characteristics of time-division grading and sampling intervals with the PMU data stream of the WAMS communication network,the network calculus algorithm was exploited to assess the latency of the dynamic PMU data stream for a 50 Hz power ***,an OPNET-based three-layer communication network simulation model was *** order to demonstrate the effectiveness of the proposed method,the results from a simulation controller are presented.

关键词： Communication latency network calculus OPNET PMU WAMS

Dynamic performance and energy efficiency of reflective and insulative composite coating on building exterior wall

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Building Simulation 2023年第12期16卷 2245-2259页

作者： Guangpeng Zhang Huijun Wu Jia Liu Jianming Yang Huakun Huang yujie ding Lei Xie School of Civil Engineering Guangzhou UniversityGuangzhou 510006China Guangdong Provincial Key Laboratory of Building Energy Efficiency and Application Technologies Guangzhou 510006China School of Automation Guangdong Polytechnic Normal UniversityGuangzhou 510665China School of Computer Science and Cyber Engineering Guangzhou UniversityGuangzhou 510006China

Reflective and insulative composite coatings are a new energy-saving material with high solar reflectance and extremely low thermal conductivity for *** optimization and impact of high solar reflectance and low thermal conductivity on the insulating capacity of walls remain *** work investigates the dynamic thermal performance and energy efficiency of a reflective and insulative composite coating in regions with hot summer and warm winter.A simplified thermal resistance-heat capacitance model of an exterior building wall is established to predict thermal *** dynamic temperature and heat flow of the wall are predicted to reduce heat loss through the interior surface of the wall and compared to the conventional *** specific impact of the thermal conductivity and solar reflectance of the coating on the heat loss is further investigated to minimize heat loss of the *** research shows that the composite coating shows better performance on adjusting outdoor climate change than the other *** with cement,it reduces the maximum temperature of the exterior surface of the wall by 7.45°C,and the heat loss through the interior surface of the wall by 38%.The heat loss is reduced with the increase of solar reflectance and the reduction of thermal *** results can provide a useful reference and guidance for the application of reflective and insulative composite coating on building exterior wall to promote their energy-saving use on building envelopes.

关键词： reflective and insulative composite coating exterior wall building insulation solar reflectance thermal conductivity

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基于相位测量偏折术的透明物体表面缺陷检测

电子科技 2024年第5期37卷 62-70页

作者：丁玉洁周志峰王勇王立瑞上海工程技术大学机械与汽车工程学院上海201620 国网思极位置服务有限公司北京102200 上海司南卫星导航技术股份有限公司上海201620

目前国内对玻璃、透镜等透明物体的质量控制仍使用传统方法,传统的肉眼评估方法效率低下。为实现透明物体表面缺陷的自动化检测,提出一种基于相位测量偏折术(Phase Measuring Deflectometry,PMD)的透射式检测方法。利用结合了新相移图... 详细信息

目前国内对玻璃、透镜等透明物体的质量控制仍使用传统方法,传统的肉眼评估方法效率低下。为实现透明物体表面缺陷的自动化检测,提出一种基于相位测量偏折术(Phase Measuring Deflectometry,PMD)的透射式检测方法。利用结合了新相移图案生成计算式的PMD算法生成结构光条纹图案,使用透射式系统将该条纹图案投射到被测物体表面。相机采集经被测物体折射后的变形条纹图片,生成绝对相位图,通过识别绝对相位图中的局部畸变提取缺陷。通过分析周期错位导致误检的原因,提出一种绝对相位周期错位修正的方法。新相移图案生成计算式能提前修正周期错位现象,二者结合使用能提高相位展开的精度。以焦距为300 mm的凹、凸透镜为例进行实验,结果表明该方法能准确地提取出因表面缺陷导致的绝对相位图中的局部畸变,精度为0.1 mm。

关键词：透明物体表面缺陷自动化检测相位测量偏折术结构光条纹图案透射式系统相位展开局部畸变周期错位

各向异性膨胀石墨双极板对燃料电池性能的影响

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汽车安全与节能学报 2024年第4期15卷 526-535页

作者：丁玉杰甘全全邵扬斌徐梁飞李建秋欧阳明高广州大学土木工程学院广州510006 清华大学车辆与运载学院智能绿色车辆与交通全国重点实验室(原汽车安全与节能国家重点实验室)北京100084 上海神力科技有限公司上海201401

该文分析了膨胀石墨双极板(EGBPs)各向异性结构对燃料电池水热管理与输出性能的影响。建立了三维两相非等温数值模型,对比了4种典型复合材料结构下温度、电流密度、水含量等参数的分布特征,揭示了双极板传热特性与输出性能的耦合效应。... 详细信息

该文分析了膨胀石墨双极板(EGBPs)各向异性结构对燃料电池水热管理与输出性能的影响。建立了三维两相非等温数值模型,对比了4种典型复合材料结构下温度、电流密度、水含量等参数的分布特征,揭示了双极板传热特性与输出性能的耦合效应。结果表明:沿质子传递方向热导率(k_z)对燃料电池性能具有显著影响,在2.2 A cm^(-2)电流密度下,将k_z从常规结构的5 W·m^(-1)·K^(-1)提升至280 W·m^(-1)·K^(-1),可以使输出性能提高22 m V;沿流道气体流动方向的热导率(k_y)是影响散热能力的关键因素,将k_y与k_z提高至280 W·m^(-1)·K^(-1),或者实现各向同性结构(k_x=k_y=k_z=20 W·m^(-1)·K^(-1)),均能够使膜电极组件(MEA)核心区域的温度降低2℃左右。因此,提高k_y与k_z并实现各向同性结构是膨胀石墨双极板技术的未来发展目标之一。

关键词：质子交换膜燃料电池(PEMFC) 膨胀石墨双极板(EGBPs) 各向异性导热水热管理散热能力

五虫通络胶囊治疗气虚血瘀型缺血性中风合并2型糖尿病临床观察

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中国中医药现代远程教育 2024年第1期22卷 93-95页

作者：崔雨牛天芹张宪忠丁玉洁山东中医药大学第一临床医学院山东济南250014 日照市中医医院中医经典科山东日照276800

目的观察五虫通络胶囊对气虚血瘀型缺血性中风合并2型糖尿病(DM)患者神经功能及同型半胱氨酸(Hcy)、超敏C反应蛋白(hs-CRP)的影响。方法选取2018年6月—2020年12月在日照市中医医院就诊的100例气虚血瘀型缺血性中风合并2型DM患者,随机... 详细信息

目的观察五虫通络胶囊对气虚血瘀型缺血性中风合并2型糖尿病(DM)患者神经功能及同型半胱氨酸(Hcy)、超敏C反应蛋白(hs-CRP)的影响。方法选取2018年6月—2020年12月在日照市中医医院就诊的100例气虚血瘀型缺血性中风合并2型DM患者,随机分为对照组(50例)和治疗组(50例)。对照组接受常规治疗,治疗组加服五虫通络胶囊,疗程均为28 d。对比观察2组治疗前及治疗后7 d、28 d的美国国立卫生研究院卒中量表(NIHSS)评分,血Hcy、hs-CRP水平,中医证候积分及安全性指标。结果治疗后2组患者的NIHSS评分均降低,治疗组低于对照组;且治疗组的血Hcy、hs-CRP水平及中医证候积分均较对照组更低,差异均有统计学意义(P<0.05)。结论五虫通络胶囊对气虚血瘀型缺血性中风合并2型DM患者神经功能及血Hcy、hs-CRP指标有明显的改善作用,能提高临床疗效,且安全性高。

关键词：缺血性中风糖尿病五虫通络胶囊中成药疗法

SFSDA:Secure and Flexible Subset Data Aggregation with Fault Tolerance for Smart Grid

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Intelligent Automation & Soft Computing 2023年第8期37卷 2477-2497页

作者： Dong Chen Tanping Zhou Xu An Wang Zichao Song yujie ding Xiaoyuan Yang College of Cryptography Engineering Engineering University of PAPXi’an710086China Key Laboratory of Network and Information Security under the PAP Xi’an710086China Institute of Software Chinese Academy of Sciences Beijing100080China

Smart grid(SG)brings convenience to users while facing great chal-lenges in protecting personal private *** aggregation plays a key role in protecting personal privacy by aggregating all personal data into a single value,preventing the leakage of personal data while ensuring its ***,a flexible subset data aggregation(FSDA)scheme based on the Pail-lier homomorphic encryption was first proposed by Zhang et *** scheme can dynamically adjust the size of each subset and obtain the aggregated data in the corresponding *** this paper,firstly,an efficient attack with both theorems proving and experimentative verification is *** find that in a specific scenario where the encrypted data constructed by a smart meter(SM)exceeds the size of one Paillier ciphertext,the malicious fog node(FN)may use the received ciphertext to obtain the reading of the ***,to avoid the possibility of privacy disclosure under certain circumstances,additional hash functions are added to the individual encryption *** addition,fault tolerance is very important to aggregation schemes in practical *** most of the current schemes,once some SMs failed,then they will not *** far as we know,there is no multi-subset aggregation scheme both supports flexible subset data aggregation and fault ***,we construct the first secure flexible subset data aggregation(SFSDA)scheme with fault tolerance by combining the fault tolerance method with the flexible multi-subset aggregation,where FN enables the control server(CS)to finally decrypt the aggregated ciphertext by recovering equivalent ciphertexts when some SMs fail to submit their *** show that our SFSDA scheme keeps the efficiency in implementing a flexible multi-subset aggregation function,and only has a small delay in implementing fault-tolerant data aggregation.

关键词： Flexible subset aggregation fault tolerance privacy preservation smart grid