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结构件角焊缝表面参数检测算法研究

佳木斯大学学报（自然科学版） 2024年第5期42卷 85-89页

作者：黄豪亮刘建春厦门理工学院机械与汽车工程学院福建厦门361024 厦门市机器人系统与数字制造重点实验室福建厦门361024

针对多种类结构件角焊缝特征曲面变化小,设计了一种基于线激光的角焊缝检测方法。利用机器人搭载线激光相机扫描焊缝获取点云,预处理后采用确定随机种子的RANSAC算法分割,基于最小二乘算法拟合母材平面与焊缝二次曲面,提出一种基于临域... 详细信息

针对多种类结构件角焊缝特征曲面变化小,设计了一种基于线激光的角焊缝检测方法。利用机器人搭载线激光相机扫描焊缝获取点云,预处理后采用确定随机种子的RANSAC算法分割,基于最小二乘算法拟合母材平面与焊缝二次曲面,提出一种基于临域迭代均值法求取焊趾方法,计算角焊缝特征。以角焊缝工件作为实验对象,与传统结构光角焊缝检测算法对比,结果表明,该算法可以将检测进度误差控制在0.1mm以内;且重复检测偏差在±0.03mm,具有较好的准确性与稳定性。

关键词：角焊缝 3D线激光缺陷检测点云分割

Regulating Li transport in Li-magnesium alloy for dendrite free Li metal anode

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Nano Research 2023年第6期16卷 8338-8344页

作者： Jinxi Wang Yadong Ye Hongmin Zhou Wei Zhang Zhaowei Sun Jiawen Zhu Hongchang Jin Huanyu Xie haoliang huang Yi Cui Rong huang Zezhong Li Song Jin Hengxing Ji Hefei National Laboratory for Physical Sciences at the Microscale CAS Key Laboratory of Materials for Energy ConversionDepartment of Applied ChemistryUniversity of Science and Technology of ChinaHefei 230026China Hefei National Research Center for Physical Sciences at the Microscale University of Science and Technology of ChinaHefei 230026China Hefei National Laboratory for Physical Sciences at the Microscale and Anhui Laboratory of Advanced Photon Science and Technology University of Science and Technology of ChinaHefei 230026China Vacuum Interconnected Nanotech Workstation(NANO-X) Suzhou Institute of Nano-Tech and Nano-Bionics(SINANO)Suzhou 215123China School of Earth and Space Sciences University of Science and Technology of ChinaHefei 230026China

Li metal has become a strong candidate for anode due to its high theoretical specific capacity and lowest electrochemical ***,the poor reversibility caused by continuous chemical and electrochemical degradation hinders the practical application of Li ***-solution-based metal alloy phases have been proposed as hosts for regulating the non-dendrite electrodeposition,but the fundamental understanding remains unclear due to the drastically different deposition behaviors of Li on *** we found the difference in the diffusion coefficient of Li atoms on solid-solution-based metal alloy phases(Li-Mg and Li-Ag alloys)was a major contributor to the different deposition *** low Li atom diffusion coefficient of Li-Mg alloy showed a preferential Li accumulation on the upper surface rather than the inward-growth plating of Li atoms into alloy foil in Li-Ag *** the process of secondary recrystallization,we improved the diffusion coefficient of Li atoms in Li-Mg alloy that facilitates the inward transfer rather than surface plating of Li *** this case,the recrystallized Li-Mg alloy underwent a solidsolution phase change in the delithiation-lithiation cycles which yielded a high Coulombic efficiency of 99.3%with a reversible gravimetric capacity of 2,874 mAh·g−1 and superior cycling stability over 5,000 h without dendrite growth.

关键词： Li-Mg alloy solid solution recrystallization lithium metal anode diffusion coefficient

Damage Evolution of Ballastless Track Concrete Exposed to Flexural Fatigue Loads:The Application of Ultrasonic Pulse Velocity,Impact-echo and Surface Electrical Resistance Method

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Journal of Wuhan University of Technology(Materials Science) 2024年第2期39卷 353-363页

作者：杨志强李化建 WEN Jiaxing DONG haoliang huang Fali WANG Zhen YI Zhonglai Railway Engineering Research Institute China Academy of Railway Science Corporation LimitedBeijing 100081China State Key Laboratory for Track System of High-Speed Railway Beijing 100081China School of Civil Engineering Beijing Jiaotong UniversityBeijing 100044China

In order to clarify the fatigue damage evolution of concrete exposed to flexural fatigue loads,ultrasonic pulse velocity(UPV),impact-echo technology and surface electrical resistance(SR) method were *** variable based on the change of velocity of ultrasonic pulse(Du) and impact elastic wave(Di)were defined according to the classical damage *** influences of stress level,loading frequency and concrete strength on damage variable were *** experimental results show that Du and Di both present a three-stages trend for concrete exposed to fatigue *** impact elastic wave is more sensitive to the microstructure damage in stage Ⅲ,the critical damage variable,i e,the damage variable before the final fracture of concrete of Di is slightly higher than that of ***,the evolution of SR of concrete exposed to fatigue loads were analyzed and the relationship between SR and Du,SR and Di of concrete exposed to fatigue loads were *** is found that the SR of concrete was decreased with the increasing fatigue cycles,indicating that surface electrical resistance method can also be applied to describe the damage of ballastless track concrete exposed to fatigue loads.

关键词： ballastless track fatigue damage ultrasonic pulse velocity impact-echo surface electrical resistance

Magnetic anisotropy manipulation and interfacial coupling in Sm_(3)Fe_(5)O_(12)films and CoFe/Sm_(3)Fe_(5)O_(12)heterostructures

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Chinese Physics B 2021年第12期30卷 583-590页

作者： Lei Shen Guanjie Wu Tao Sun Zhi Meng Chun Zhou Wenyi Liu Kang Qiu Zongwei Ma haoliang huang Yalin Lu Zongzhi Zhang Zhigao Sheng Anhui Key Laboratory of Condensed Matter Physics at Extreme Conditions High Magnetic Field LaboratoryHFIPSChinese Academy of Sciences(CAS)Hefei 230031China University of Science and Technology of China Hefei 230026China Shanghai Ultra-Precision Optical Manufacturing Engineering Research Center and Key Laboratory of Micro and Nano Photonic Structures(MOE) Department of Optical Science and EngineeringFudan UniversityShanghai 200433China Anhui Laboratory of Advanced Photon Science and Technology Hefei National Laboratory for Physical Sciences at the MicroscaleUniversity of Science and Technology of ChinaHefei 230026China Key Laboratory of Photovoltaic and Energy Conservation Materials Chinese Academy of SciencesHefei 230031China

The magnetic anisotropy manipulation in the Sm_(3)Fe_(5)O_(12)(SmIG)films and its effect on the interfacial spin coupling in the CoFe/SmIG heterostructures were studied *** switching the orientation of the Gd_(3)Ga_(5)O_(12)substrates from(111)to(001),the magnetic anisotropy of obtained SmIG films shifts from in-plane to *** results can also be obtained in the films on Gd_(3)Ga_(5)O_(12)substrates,which identifies the universality of such orientation-induced magnetic anisotropy ***,the interfacial spin coupling and magnetic anisotropy switching effect on the spin wave in CoFe/SmIG magnetic heterojunctions have also been explored by utilizing the time-resolved magneto-optical Kerr effect *** is intriguing to find that both the frequency and effective damping factor of spin precession in CoFe/SmIG heterojunctions can be manipulated by the magnetic anisotropy switching of SmIG *** findings not only provide a route for the perpendicular magnetic anisotropy acquisition but also give a further path for spin manipulation in magnetic films and heterojunctions.

关键词： perpendicular magnetic anisotropy Sm_(3)Fe_5O_(12)films interfacial spin coupling CoFe/Sm_(3)Fe_5O_(12)heterojunction

A new high-temperature perovskite-like magnetic insulator

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Science China Materials 2020年第7期63卷 1330-1336页

作者： Haowen Tang Zezhi Chen Jianlin Wang haoliang huang Jun huang Zhengping Fu Ranran Peng Yalin Lu Hefei National Laboratory for Physical Sciences at Microscale University of Science and Technology of ChinaHefei 230026China CAS Key Laboratory of Materials for Energy Conversion Department of Materials Science and EngineeringUniversity of Science and Technology of ChinaHefei 230026China Synergetic Innovation Center of Quantum Information&Quantum Physics University of Science and Technology of ChinaHefei 230026China

Driven by the demands of fast-developed quantum-spintronic devices and magnetic tunneling junctions,exploring excellent magnetic insulators,which can func-tion above room temperature and have high symmetry(generally speaking perovskite or perovskite-like struc-ture)to facilitate their integration potential with common single crystal oxide films or substrates as further devices,have drawn special attentions[1-4].Unfortunately.

关键词：居里温度绝缘材料剩余磁化强度绝缘体类钙钛矿结构对称性八面体圆二色性

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干燥环境下混凝土内部损伤的量化

硅酸盐学报 2021年第2期49卷 312-322页

作者：高鹏陈阳黄浩良韦江雄余其俊华南理工大学材料科学与工程学院广州510640 广东省建筑科学研究院集团股份有限公司广州510500 广东省建筑材料低碳技术工程技术研究中心广州510640

采用数字图像相关法(DIC)测试了C50混凝土在73%,55%和40%相对湿度环境下干燥1d至60d的非均匀变形。结合混凝土材料细观损伤模型,计算了混凝土内部的等效拉应变(e),用于获得混凝土内部损伤的分布特征,发现包裹粗骨料的砂浆拉应变较大,容... 详细信息

采用数字图像相关法(DIC)测试了C50混凝土在73%,55%和40%相对湿度环境下干燥1d至60d的非均匀变形。结合混凝土材料细观损伤模型,计算了混凝土内部的等效拉应变(e),用于获得混凝土内部损伤的分布特征,发现包裹粗骨料的砂浆拉应变较大,容易造成损伤,产生微裂缝。根据e的大小和分布计算了混凝土内部损伤因子(D_(e)),用于量化混凝土内部损伤,发现混凝土在55%和40%相对湿度环境下干燥60 d的D_(e)分别增加至101μm/m和135μm/m,相对较高,说明55%及以下相对湿度环境容易对混凝土内部造成损伤,产生微裂缝。

关键词：干燥收缩微裂缝损伤数字图像相关法非均匀应变

碱激发粉煤灰-矿渣灌浆材料的流变性与流动性

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华南理工大学学报（自然科学版） 2019年第8期47卷 120-128,135页

作者：殷素红管海宇胡捷黄浩良余其俊华南理工大学材料科学与工程学院

采用Brookfield R/S plus流变仪和Marsh筒分别研究了碱激发粉煤灰-矿渣灌浆材料的流变性和流动性,并探讨了硅酸钠溶液模数和固含量、矿渣掺量的影响;采用灰色关联度分析法探究了流变性与Marsh流动性之间的关联性.研究表明:下端出口内径... 详细信息

采用Brookfield R/S plus流变仪和Marsh筒分别研究了碱激发粉煤灰-矿渣灌浆材料的流变性和流动性,并探讨了硅酸钠溶液模数和固含量、矿渣掺量的影响;采用灰色关联度分析法探究了流变性与Marsh流动性之间的关联性.研究表明:下端出口内径为10 mm的Marsh筒适用于碱激发粉煤灰-矿渣灌浆材料的流动性测试;碱激发粉煤灰-矿渣灌浆材料为流变性指数大于1的剪切增稠浆液,流变性与Marsh流动性存在经时突变性;当水玻璃模数为1.7、水玻璃用量为18%、矿渣掺量为10%时,浆液具有良好的工作性能;浆液Marsh流动度与浆液屈服应力和塑性黏度之间的关联度均大于0.8,关联性良好,其中在20 s^-1剪切速率时流变性与Marsh流动性的关联性最好,可采用Marsh筒法来检测评价浆液的流变性.

关键词：碱激发粉煤灰-矿渣灌浆材料流变性流动性

卡瑞利珠单抗联合放疗及TC化疗方案治疗晚期宫颈癌患者的疗效评价

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临床研究 2022年第5期30卷 72-75页

作者：黄好亮郑州大学附属洛阳中心医院妇科河南洛阳471000

目的观察卡瑞利珠单抗联合放疗及TC化疗方案治疗晚期宫颈癌患者的疗效。方法选取郑州大学附属洛阳中心医院2019年1月至2021年5月诊治的120例晚期宫颈癌患者,按照随机数字表法分为研究组和对照组,各60例。对照组采用放疗^(+)TC化疗方案(... 详细信息

目的观察卡瑞利珠单抗联合放疗及TC化疗方案治疗晚期宫颈癌患者的疗效。方法选取郑州大学附属洛阳中心医院2019年1月至2021年5月诊治的120例晚期宫颈癌患者,按照随机数字表法分为研究组和对照组,各60例。对照组采用放疗^(+)TC化疗方案(紫杉醇^(+)卡铂),研究组在对照组基础上加用卡瑞利珠单抗,对比两组治疗有效率、血清肿瘤标志物[糖链抗原19-9(CA19-9)、糖链抗原125(CA125)、鳞状细胞癌抗原(SCC-Ag)、恶性肿瘤特异生长因子(TSGF)]水平、免疫功能[成熟T淋巴细胞(CD3^(+))、诱导性T细胞(CD4^(+))、抑制性细胞(CD8^(+))、CD4^(+)/CD8^(+)]、毒副反应及生命质量核心30问卷调查表(EORTCQLQ-C30)评分。结果研究组治疗有效率(76.67%)高于对照组(58.33%),差异有统计学意义(P0.05);治疗后,研究组生存质量高于对照组,差异有统计学意义(P<0.05)。结论卡瑞利珠单抗、放疗及TC化疗方案联合应用于治疗晚期宫颈癌患者效果显著,能有效改善免疫功能,提高生存质量。

关键词：宫颈癌卡瑞利珠单抗放疗 TC化疗方案

Efficient CO_(2) fixation with acetophenone on Ag-CeO_(2) electrocatalyst by a double activation strategy

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Chinese Journal of Catalysis 2022年第12期43卷 3134-3141页

作者： Anxiang Guan Yueli Quan Yangshen Chen Zhengzheng Liu Junbo Zhang Miao Kan Quan Zhang haoliang huang Linping Qian Linjuan Zhang Gengfeng Zheng Laboratory of Advanced Materials Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis&Innovative MaterialsFudan UniversityShanghai 200438China Key Laboratory of Interfacial Physics and Technology Shanghai Institute of Applied PhysicsChinese Academy of SciencesShanghai 201800China

The electrocarboxylation reaction is an attractive means to convert CO_(2) into valuable chemicals under ambient conditions,while it still suffers from low efficiency due to the high stability of CO_(2).In this work,we report a double activation strategy for simultaneously activating CO_(2) and acetophenone by silver-doped CeO_(2)(Ag-CeO_(2)) nanowires,featuring as an effective electrocatalyst for electrocarboxylation of acetophenone with CO_(2).Compared to the Ag foil,Ag nanoparticles and CeO_(2) nanowires,the Ag-CeO_(2)nanowire catalyst allowed to reduce the onset potential difference between CO_(2) and acetophenone activation,thus enabling efficient electrocarboxylation to form 2-phenyllactic *** Faradaic efficiency for producing 2-phenyllactic acid reached 91%at−1.8 V versus Ag/*** double activation strategy of activating both CO_(2)and organic substrate molecules can benefit the catalyst design to improve activities and selectivities in upgrading CO_(2)fixation for higher-value electrocarboxylation.

关键词： Electrocarboxylation CO_(2)reduction Electrocatalyst Ag-CeO2 Double activation strategy