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Advances in Manufacturing 2024年第1期12卷 94-107页

作者： Yan Liu qiu tang Xin-Cheng Tian School of Control Science and Engineering Shandong UniversityJinan250061People’s Republic of China Engineering Research Center of Intelligent Unmanned System Ministry of EducationJinan250061People’s Republic of China School of Mechanical and Electronic Engineering Shandong Jianzhu UniversityJinan250101People’s Republic of China

The automatic cutting of intersecting pipes is a challenging task in *** improved automation and accuracy,this paper proposes a model-driven path planning approach for the robotic plasma cutting of a branch pipe with a single ***,it summarizes the intersection forms and introduces a dual-pipe intersection *** on this model,the moving three-plane structure(a description unit of the geometric characteristics of the intersecting curve)is constructed,and a geometric model of the branch pipe with a single Y-groove is ***,a novel mathematical model for plasma radius and taper compensation is ***,the compensation model and groove model are integrated by establishing movable ***,to prevent collisions between the plasma torch and workpiece,the torch height is planned and a branch pipe-rotating scheme is *** the established models and moving frames,the planned path description of cutting robot is provided in this novel *** accuracy of the proposed method is verified by simulations and robotic cutting experiments.

关键词： Automatic groove cutting of intersecting pipes Model-driven robot path planning Plasma beam radius and taper compensation

“朝贡”抑或“互市”?——从法规范看清代中、欧法律关系嬗变

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当代法学 2024年第4期38卷 150-160页

作者：邱唐华东政法大学法律学院

清朝前期努力以传统的“朝贡—册封”体制来规范和解释中欧互动,将欧洲各国等量齐观地视作亚洲各朝贡国,强行纳入“朝贡体系”的想象之中。而康熙开海之后则开始更加务实地正视与承认这些国家与中国交往的纯粹经济动因,就规范语言的角... 详细信息

清朝前期努力以传统的“朝贡—册封”体制来规范和解释中欧互动,将欧洲各国等量齐观地视作亚洲各朝贡国,强行纳入“朝贡体系”的想象之中。而康熙开海之后则开始更加务实地正视与承认这些国家与中国交往的纯粹经济动因,就规范语言的角度来看,原本的“朝贡国”之外又提出了“互市国”概念并举。由此可以看到,清朝对于荷兰、西洋等欧洲国家事务的秩序设计,明显经历了一个由“朝贡”到“朝贡”与“互市”杂糅的转变,这一转变可以窥见清政府面对全新交往对象,突破旧有交往模式的调试努力与纠结心态。

关键词：清代中欧关系朝贡体制互市贸易法律规范

“列我藩服”:清朝对中亚地区理藩体制之法规范研究

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华东政法大学学报 2024年第1期27卷 32-45页

作者：邱唐华东政法大学法律学院华东政法大学港澳台法研究所

随着疆域的开拓,清朝统治阶层结合自身的民族特点与政治实践,在继承明朝礼部主管之朝贡体制之外,发展出另一种由理藩院主导,针对中亚地区各外藩的对外理藩法律制度体系,进而形成了由《大清会典》《理藩院则例》及《大清律例》等不同层... 详细信息

随着疆域的开拓,清朝统治阶层结合自身的民族特点与政治实践,在继承明朝礼部主管之朝贡体制之外,发展出另一种由理藩院主导,针对中亚地区各外藩的对外理藩法律制度体系,进而形成了由《大清会典》《理藩院则例》及《大清律例》等不同层次的法规范中相关条文建构起的对外理藩的法规范体系。清朝通过对外理藩制度,将中亚地区各外藩与传统朝贡国分开,使得清朝的对外法律秩序体系相较于明朝的朝贡体制,呈现出多元化的样态。

关键词：清朝对外法律秩序对外理藩制度理藩院大清会典理藩院则例

基于新型改进矩阵束的便携式电网同步相量测量装置

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湖南大学学报（自然科学版） 2024年第6期51卷 159-167页

作者：唐求李琛恭花金辉黄潇湖南大学电气与信息工程学院湖南长沙410082

针对传统同步相量算法受电网间谐波影响较大的问题,本文提出了一种基于新型改进矩阵束的电网同步相量测量算法.将电网信号构建成Hankel矩阵,对其进行奇异值分解并使用自适应定阶方法滤除其中的噪声干扰分量,通过矩阵运算得到准确的电压... 详细信息

针对传统同步相量算法受电网间谐波影响较大的问题,本文提出了一种基于新型改进矩阵束的电网同步相量测量算法.将电网信号构建成Hankel矩阵,对其进行奇异值分解并使用自适应定阶方法滤除其中的噪声干扰分量,通过矩阵运算得到准确的电压幅值、频率及相角.经过仿真验证,本算法对含有间谐波分量的电网信号测量结果优于流行的傅里叶变换测量算法.并根据此算法设计了一款便携式电网同步相量测量装置,可解决传统同步相量测量设备体积庞大、成本较高的问题,利用高精度卫星同步信号监测晶振实际频率,动态调整采样控制参数降低采样时间误差,将同步采样的电网波形参数与时间标签等无线传输至移动终端,完成电网信号幅值、频率及相角计算.实际测试表明,本装置具有较高的测量精度,其中电压幅值、频率和相角测量误差分别为0.038 5%、0.000 51 Hz和0.053 7°,满足《电力系统同步相量测量装置检测规范》(GB/T 26862—2011),具有较强的实际应用价值.

关键词：电网同步相量测量矩阵束移动终端间谐波便携式装置

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Factors influencing further vertebral height loss following percutaneous vertebroplasty in osteoporotic vertebral compression fractures:A 1-year follow-up study

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World Journal of Clinical Cases 2024年第21期12卷 4609-4617页

作者： Zhong-qiu tang Shao-Bo He Dong-Yang Yu Hai-Mao Luo Xue-Hong Xing Yong-Wen Zhou Department of Spinal Surgery Affiliated Hospital of Panzhihua UniversityPanzhihua 617000Sichuan ProvinceChina Department of Shoulder and Elbow Surgery Affiliated Hospital of Panzhihua UniversityPanzhihua 617000Sichuan ProvinceChina

BACKGROUND Osteoporotic vertebral compression fractures(OVCFs)contribute to back pain and functional limitations in older individuals,with percutaneous vertebroplasty(PVP)emerging as a minimally invasive ***,further height loss post-PVP prompts investigation into contributing *** To investigate the factors associated with further height loss following PVP with cement augmentation in OVCF *** A total of 200 OVCF patients who underwent successful PVP between January 2021 and December 2022 were included in this study.“Further height loss”during 1 year of follow-up in OVCF patients with bone edema was defined as a vertical height loss of≥4 *** study population was divided into two groups for analysis:The“No Further Height Loss group(n=179)”and the“Further Height Loss group(n=21).”RESULTS In comparing two distinct groups of patients,significant differences existed in bone mineral density(BMD),vertebral compression degree,prevalence of intravertebral cleft(IVF),type of bone cement used,and cement distribution *** from binary univariate regression analysis revealed that lower BMD,the presence of IVF,cleft distribution of bone cement,and higher vertebral compression degree were all significantly associated with further height ***,the use of mineralized collagen modified-poly(methyl methacrylate)bone cement was associated with a significant reduction in the risk of further height *** multivariate regression analysis,lower BMD and the presence of IVF remained significantly associated with further height *** Further height loss following PVP in OVCF patients is influenced by a complex interplay of factors,especially lower BMD and the presence of *** findings underscore the importance of assessing and managing these factors when addressing height loss following PVP in OVCF patients.

关键词： Percutaneous vertebroplasty Osteoporotic vertebral compression fractures Further height loss Bone mineral density Intravertebral cleft

基于加窗随机解调架构的电网超谐波信号检测方法

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仪器仪表学报 2024年第2期45卷 263-271页

作者：唐求陈张青梁林滕召胜计志勇湖南大学电气与信息工程学院长沙410082

针对电网超谐波检测采样压力大、数据处理困难等问题,提出一种基于加窗随机解调架构的超谐波信号检测方法。该方法首先利用模拟信息转换技术结合加窗思想,在采样端对超谐波信号进行加窗压缩采样,得到压缩采样后的数据;随后,在重构端采... 详细信息

针对电网超谐波检测采样压力大、数据处理困难等问题,提出一种基于加窗随机解调架构的超谐波信号检测方法。该方法首先利用模拟信息转换技术结合加窗思想,在采样端对超谐波信号进行加窗压缩采样,得到压缩采样后的数据;随后,在重构端采用逐级二分的思想,将残差的一阶微分作为收敛阈值,改进稀疏度自适应匹配追踪(SAMP)算法,实现对采样数据的快速重构。大量的仿真实验和测试结果表明,方法可以在减少90%数据量的情况下实现超谐波信号的频率幅值精确检测,其中频幅值检测的相对误差≤2%,频率检测误差≤3 Hz,为更准确测量超谐波提供了新思路。

关键词：超谐波随机解调压缩采样改进重构算法

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K-S变换及其电网超谐波时频分析应用

湖南大学学报（自然科学版） 2024年第6期51卷 128-136页

作者：滕召胜梁成斌唐求张雷鹏成达湖南大学电气与信息工程学院湖南长沙410082

依据FFT→优化窗→IFFT思路,突破线性时频变换的窗函数积分性能桎梏,实现高性能优化窗函数的线性时频变换应用,建立新型时频变换算法——K-S变换.对信号x(t)的FFT频谱向量进行频移处理后,与该频移点下Kaiser优化窗的频谱向量进行Hadamar... 详细信息

依据FFT→优化窗→IFFT思路,突破线性时频变换的窗函数积分性能桎梏,实现高性能优化窗函数的线性时频变换应用,建立新型时频变换算法——K-S变换.对信号x(t)的FFT频谱向量进行频移处理后,与该频移点下Kaiser优化窗的频谱向量进行Hadamard乘积,再将乘积结果进行FFT逆变换(IFFT),构造出K-S变换复时频矩阵,由此获得x(t)的时间-频率-幅值、时间-频率-相位三维信息;给出逆变换的数学推导与局部性质、线性性质和变分辨率特性;0~150 kHz电网的稳态与时变超谐波信号仿真实验表明,K-S变换的时域、频域分辨能力均优于流行的短时傅里叶变换、S变换,具有优良的变分辨率性能;0~40 kHz超谐波信号的实测证明,基于K-S变换的超谐波电压幅值测量绝对误差均小于0.032 3 V.

关键词： K-S变换时频分析 Kaiser优化窗变分辨率特性电网超谐波

Effect and Safety of Herbal Medicine Foot Baths in Patients with Diabetic Peripheral Neuropathy:A Multicenter Double-Blind Randomized Controlled Trial

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Chinese Journal of Integrative Medicine 2024年第3期30卷 195-202页

作者： HUANG Hao-yue LIN Yu-ping WEI Hua FU Yu ZHOU Yue-hong FANG Zhao-hui qiu Xiao-tang WANG Mei LI Qing-bo LI Shan-shan WANG Shi-dong DAI Fang LIU Zhen-jie ZHAO Ling WEN Jian-xuan WU Li-yan ZENG Hui-yan ZHANG Jin-ming LU Qi-yun HE Liu SONG Wei SUN Lu LUO Lu-lu HE Jia-li XIE Wen-wen LIANG Qing-shun HUANG Yuan ZHU Sheng-ling LONG Jie-er GAO Zhi-juan WEN Ze-huai LI Chun-ji OUYANG Wen-wei LI Geng WU Ming-hui LI An-xiang HUANG Jin-zhu Sanjoy K Paul tang Xian-yu FAN Guan-jie Department of Endocrinology Guangdong Provincial Hospital of Chinese MedicineGuangzhou510120China The Second Clinical College of Guangzhou University of Chinese Medicine Guangzhou510120China Department of Endocrinology The Second Affiliated Hospital of Guangzhou University of Chinese MedicineGuangzhou510120China Guangdong Provincial Academy of Chinese Medical Sciences Guangzhou510120China Department of Endocrinology The First Affiliated Hospital of Henan University of Chinese MedicineZhengzhou450000China Department of Endocrinology Liuyang Hospital of Chinese MedicineChangsha410000China Department of Endocrinology The First Affiliated Hospital of Anhui University of Chinese MedicineHefei230000China Department of Endocrinology Hainan Provincial Hospital of Traditional Chinese MedicineHaikou570100China Department of Endocrinology The Affiliated Hospital of Liaoning University of Traditional Chinese MedicineShenyang110000China Department of Geriatric Luoyang No.1 Hospital of Traditional Chinese MedicineLuoyangHenan Province471000China Department of Endocrinology The Second Affiliated Hospital of Guizhou University of Traditional Chinese MedicineGuiyang550000China Department of Endocrinology Beijing University of Chinese Medicine Affiliated Dongzhimen HospitalBeijing100000China Department of Endocrinology The First Affiliated Hospital of Guizhou University of Traditional Chinese MedicineGuiyang550000China Melbourne EpiCentre The University of Melbourne and Melbourne HealthMelbourne3013Australia

Objective:To evaluate the effect and safety of foot baths with tangbi Waixi Decoction(TW)in treating patients with diabetic peripheral neuropathy(DPN).Methods:It is a multicenter double-blinded randomized controlled *** with DPN were recruited between November 18,2016 and May 30,2018 from 8 hospitals in *** patients received basic treatments for glycemic *** received foot baths with TW herbal granules either 66.9 g(intervention group)or 6.69 g(control group)for 30 min once a day for 2 weeks and followed by a 2-week rest,as a therapeutic *** the Toronto Clinical Scoring System total score(TCSS-TS)6 points,the patients received a total of 3 therapeutic courses(for 12 weeks)and were followed up for 12 *** primary outcome was change in TCSS-TS score at 12 and 24 *** outcomes included changes in bilateral motor nerve conduction velocity(MNCV)and sensory nerve conduction velocity(SNCV)of the median and common peroneal *** was also ***:Totally 632 patients were enrolled,and 317 and 315 were randomized to the intervention and control groups,*** the 12-week intervention,patients in both groups showed significant declines in TCSSTS scores,and significant increases in MNCV and SNCV of the median and common peroneal nerves compared with pre-treatment(P0.05),and no serious adverse event was related with ***:Treatment of TW foot baths was safe and significantly benefitted patients with DPN.A low dose of TW appeared to be more effective than a high dose.(Registry *** CTR-IOR-16009331)

关键词： diabetic peripheral neuropathy herbal medicine foot baths Chinese medicine randomized controlled trial tangbi Waixi Decoction

宫颈癌调强放射治疗三维在体剂量验证分析及最佳γ通过率阈值

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中国医学物理学杂志 2024年第7期41卷 803-807页

作者：王佳浩谢洪玲陈玉凯唐秋浙江大学医学院附属妇产科医院放疗科浙江杭州310000

目的:对宫颈癌调强放射治疗(IMRT)进行基于电子射野影像装置的三维在体剂量验证(EIVD)分析,研究测量剂量与计划剂量间的差异,并通过剂量学敏感性探讨EIVD质控中最佳γ通过率阈值。方法:回顾性分析浙江大学医学院附属妇产科医院行IMRT的4... 详细信息

目的:对宫颈癌调强放射治疗(IMRT)进行基于电子射野影像装置的三维在体剂量验证(EIVD)分析,研究测量剂量与计划剂量间的差异,并通过剂量学敏感性探讨EIVD质控中最佳γ通过率阈值。方法:回顾性分析浙江大学医学院附属妇产科医院行IMRT的45例宫颈癌患者,所有患者在治疗过程中行EIVD验证,获取测量剂量。采用2mm/2%、2mm/3%、3mm/3%的全局γ指标进行通过率分析,采用剂量体积直方图参数评估测量剂量和计划剂量之间的差异。通过皮尔逊(Pearson)相关性分析研究γ通过率与剂量学差异间的相关性,绘制受试者工作特征(ROC)曲线确定最佳γ通过率阈值。结果:3类γ指标2mm/2%、2mm/3%、3mm/3%的平均通过率分别为(83.07±5.25)%、(91.69±3.52)%、(95.02±2.46)%;EIVD测量剂量与计划剂量在计划靶区(PTV)的平均剂量(Dmean)偏差为2.43%(P=0.016),膀胱、直肠、小肠的Dmean偏差分别为0.35%、0.46%、0.30%(P>0.05)。Pearson分析显示3类γ指标与PTV的剂量偏差相关性较强(r>0.7),与危及器官相关性较弱(r<0.7);ROC分析显示2mm/2%、2mm/3%、3mm/3%最佳的γ通过率阈值分别为79.06%、90.04%、94.19%。结论:EIVD能够有效保证宫颈癌IMRT过程中PTV剂量传递的精准性,利用γ通过率阈值能够为下一步宫颈癌自适应IMRT提供一定的临床依据。

关键词：宫颈癌在体剂量验证剂量学 γ通过率

Attack Detection for Spoofed Synchrophasor Measurements Using Segmentation Network

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CSEE Journal of Power and Energy Systems 2022年第5期8卷 1327-1337页

作者： Wei qiu Chengcheng Li qiu tang Kaiqi Sun Yilu Liu Wenxuan Yao College of Electrical and Information Engineering Hunan UniversityChangsha 410082China Department of Electrical Engineering and Computer Science University of TennesseeKnoxvilleTN37996USA Oak Ridge National Laboratory Oak RidgeTN37831USA

Synchrophasor measurements are essential to realtime situational awareness of the smart grid but vulnerable to cyber-attacks during the process of transmission and *** ensure data security and mitigate the impact of spoofed synchrophasor measurements,this work proposes a novel object detection method using a Weight-based One-dimensional Convolutional Segmentation Network(WOCSN)with the ability of attack behavior identification and time *** WOCSN,automatic data feature extraction can be achieved by onedimensional convolution from the input signal,thereby reducing the impact of handcrafted features.A weight loss function is designed to distribute the contribution for normal and attack ***,attack time is located via the proposed binary method based on pixel ***,the actual synchrophasor data collected from four locations are used for the performance evaluation of the ***,combined with designed evaluation metrics,the time localization ability of WOCSN is validated in the scenarios of composite attacks with different spoofed intensities and time-sensitivities.

关键词： Data security spoofed synchrophasor measurements weight-based one-dimensional convolutional segmentation network(WOCSN)