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Visual electrophysiological assessment of children with poor response to treatment for functional amblyopia

International Journal of Ophthalmology(English edition) 2025年第2期18卷 315-322页

作者： Dong-Qing Yuan wei-wei Zhang Liu-wei Gu Qing-Huai Liu Department of Ophthalmology Jiangsu Province Hospitalthe First Affiliated Hospital of Nanjing Medical UniversityJiangsu Women and Children Health HospitalNanjing 210029Jiangsu ProvinceChina

AIM:To assess the visual electrophysiological outcomes in children with functional amblyopia who exhibited poor response to conventional ***:Twenty-one children with functional amblyopia,aged 5.7±2.1y(range:4-10y),underwent comprehensive ophthalmic and refractive *** domain-optical coherence tomography(SD-OCT)and multifocal electroretinography(mfERG)were conducted to analyze the macular retinal thickness and the first-order response P1 ring of the mfERG in the amblyopic eye(AE)compared to the fellow good eye(GE).RESULTS:Initially,visual acuity in the AE ranged from 20/800 to 20/40,while the GE exhibited a range of 20/25 to 20/20(P<0.01).After 6mo of treatment,17 patients demonstrated improved visual acuity in the AE to 20/50 or better,while 4 children showed no ***-OCT revealed comparable macular and optic disc structures between the AE and *** to treatment,the mfERG P1 ring amplitude was significantly reduced in the AE compared to GE(P<0.05).The AE/GE ratio of P1 ring amplitude showed significant improvement ***,a smaller AE/GE ratio before treatment was associated with poorer improvement ***:In the management of functional amblyopia,a thorough assessment of amblyopic eye examinations is *** 20%of amblyopic eyes may not achieve significant improvement in visual acuity,despite the absence of detectable organic retinal *** may reveal underlying *** mfERG into initial assessments or treatment follow-ups can aid in identifying potential hidden retinal defects and predicting the prognosis of the amblyopic eye.

关键词： functional amblyopia poor response optical coherence tomography multifocal electroretinography retinal defects

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Solar cycles during the seventeenth century revealed by equatorial aurora records

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Earth and Planetary Physics 2025年第1期9卷 182-187页

作者： Yong wei LiMei Yan Key Laboratory of Earth and Planetary Physics Institute of Geology and GeophysicsChinese Academy of SciencesBeijing 100029China College of Earth and Planetary Sciences University of Chinese Academy of SciencesBeijing 100049China

Solar cycles are fundamental to astrophysics,space exploration,technological infrastructure,and Earth's climate.A better understanding of these cycles and their history can aid in risk mitigation on Earth,while also deepening our knowledge of stellar physics and solar system *** the solar cycles between 1600 and 1700-especially the post-1645 Maunder Minimum,characterized by significantly reduced solar activity-poses challenges to existing solar activity *** study utilizes a new red equatorial auroral catalog from ancient Korean texts to establish solar cycle patterns from 1623 to ***,a further reevaluation of the solar cycles between 1610 and 1755 identified a total of 13 cycles,diverging from the widely accepted record of 12 cycles during that *** research enhances our understanding of historical solar activity,and underscores the importance of integrating diverse historical sources into modern analyses.

关键词： solar cycle Maunder Minimum solar activity red equatorial aurora West Pacific geomagnetic anomaly

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Global stability of the plane wave solutions to the relativistic string equation with non-small perturbations

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Science China Mathematics 2025年第2期68卷 339-378页

作者： Jinhua Wang Changhua wei School of Mathematical Sciences Xiamen UniversityXiamen 361005China Department of Mathematics Zhejiang Sci-Tech UniversityHangzhou 310018China

This paper is concerned with the global stability of the plane wave solutions to the relativistic string equation with non-small *** certain decay assumptions on the plane wave,we conclude that the perturbed system admits a globally smooth solution if the perturbation along the transversal direction is sufficiently small,while the travelling direction is allowed to be *** choosing a gauge adapted to the plane wave solution,we deduce an equivalent Euler-Lagrangian equation for the perturbation whose quasilinear structure is reflected precisely in the induced geometry of the relativistic *** then helps to proceed with a geometrically adapted and weighted energy argument for which robust estimates ***,due to the non-trivial background solutions,the induced metric of the relativistic string involves linear perturbations with undetermined signs,and hence a key observation is needed to guarantee that the energies associated with the multipliers are positive up to lower-order terms.

关键词： relativistic string plane wave null condition large energy global existence

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Molecular-based porous polymers with precise sites for photoreduction of carbon dioxide

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Chinese Chemical Letters 2025年第1期36卷 201-213页

作者： wei-Jia Wang Kaihong Chen College of Biological and Chemical Engineering Zhejiang University of Science and TechnologyHangzhou 310023China The Institute of Green Chemistry and Engineering School of Chemistry and Chemical EngineeringNanjing UniversitySuzhou 215163China

Photocatalytic CO_(2)reduction reaction(CO_(2)RR)is one of the promising strategies for sustainably producing solar *** precise identification of catalytic sites and the enhancement of photocatalytic CO_(2)conversion is imperative yet quite *** critical review summarizes recent advances in porous photo-responsive polymers,including covalent organic frameworks(COFs),covalent triazine frameworks(CTFs),and conjugated microporous polymers(CMPs),those can be rationally designed from the molecular level for visible-light-driven photocatalytic CO_(2)***,special emphasis is placed on how the well-defined active sites on these polymers can influence their properties and photocatalytic *** precise regulation and control of microenvironments and electronic properties of metal active centers are crucial for boosting catalytic efficiency and selectivity,as well as for the design of better photocatalysts for CO_(2)reduction.

关键词： Carbon dioxide reduction Photocatalysis Porous polymers Well-defined catalytic sites Molecular level

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特高压交流输电线路倒V型绝缘子串电场分布计算和均压环参数优化设计

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电工电能新技术 2016年第10期35卷 23-28页

作者：魏梦婷霍锋阮江军黄从鹏万小东武汉大学电气工程学院湖北武汉430072 中国电力科学研究院湖北武汉430074

倒V型复合绝缘子串相比悬垂绝缘子串有更好的防污、防冰特性,适用于特高压输电线路的改造,而绝缘子串的金具电晕特性问题需要关注。为保障特高压交流输电线路倒V型复合绝缘子串均压环满足工程防晕降噪要求,本文建立了特高压输电线路倒V... 详细信息

倒V型复合绝缘子串相比悬垂绝缘子串有更好的防污、防冰特性,适用于特高压输电线路的改造,而绝缘子串的金具电晕特性问题需要关注。为保障特高压交流输电线路倒V型复合绝缘子串均压环满足工程防晕降噪要求,本文建立了特高压输电线路倒V型复合绝缘子串和均压环的三维有限元模型,采用有限元软件ANSYS对复合绝缘子串和均压环表面电场进行了计算,分析了均压环中心直径、管径、罩入深度、倒V串夹角以及绝缘子串长对电场分布的影响。在综合考虑各因素的前提下,采用控制变量法给出了均压环等参数优化配置建议。

关键词：特高压倒V型复合绝缘子串 ANSYS 有限元法电场分布

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一种聚羧酸减水剂的配合比设计

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工程质量 2021年第S01期39卷 215-218页

作者：孙振亚魏孟婷江苏申达检验有限公司江苏常州213000

对聚羧酸减水剂的分子结构分析后,根据分子中部分功能单体的特性,采用改变减水剂合成原料的用量及合成反应的温度条件,通过室内试验来确定各种原料的最佳用量比例,从而使减水剂适应高含泥量混凝土且不改变混凝土拌合物坍落度。

关键词：减水剂坍落度混凝土

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并联型骨外固定器在上肢畸形矫正中的应用

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河北工业大学学报 2017年第5期46卷 94-100页

作者：魏梦婷张习帅孙昊河北工业大学控制科学与工程学院天津300130 河北工业大学智能康复装置与检测技术教育部工程研究中心天津300130

常规的串联型骨外固定器无法治疗多维畸形的同期矫正.因此,将6-DOF并联型机器人与骨外固定技术相结合,应用于治疗复杂上肢畸形,可同时矫正四维畸形.而此技术存在人为主观上无法计算各驱动杆伸缩量及观测畸形骨段状态信息的问题.由此自... 详细信息

常规的串联型骨外固定器无法治疗多维畸形的同期矫正.因此,将6-DOF并联型机器人与骨外固定技术相结合,应用于治疗复杂上肢畸形,可同时矫正四维畸形.而此技术存在人为主观上无法计算各驱动杆伸缩量及观测畸形骨段状态信息的问题.由此自主开发配套计算机软件.医生将由术后X线片测量的相关参数输入软件,通过计算机进行数学运算生成6根驱动杆每日调节量的电子处方,从而指导医生及患者通过渐进的调整驱动杆伸长或短缩来完成畸形矫正.同时,对整个矫正过程进行位姿三维仿真,使医生能够直观的分析畸形状态.临床实验结果表明,使用并联型骨外固定器进行上肢畸形矫正获得了理想的治疗效果.应用此技术提高了医护人员的工作效率和畸形矫正的调整精度,使得畸形矫正过程简单化、精准化、数字化.

关键词：援并联机构 6-DOF 虚拟现实技术骨外固定器畸形矫正

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Water quality analysis and source apportionment in estuaries along the coast of the Bohai Sea,North China

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Journal of Oceanology and Limnology 2025年第1期43卷 73-89页

作者： Guanghong WU Dan YE wei LUO Tianjin Key Laboratory of Water Resources and Environment Tianjin Normal UniversityTianjin 300387China Laboratory of Solid Waste Treatment and Recycling Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China

High-dimensional data(a dataset with many features)were collected from 64 sampling sites to analyze the water quality in estuaries along the coast of the Bohai Sea,North *** twenty-five water quality parameters analyzed were collected monthly from January 2021 to December *** statistical techniques,such as the absolute principal component score-multiple linear regression model(APCS-MLR),correlation analysis,and analysis of variance were used to identify and quantify the potential sources or factors affecting water quality and to analyze the spatial-temporal variation in water *** water quality indices(WQIs),ranging from 67.96 to 70.67,showed that the water quality was at an intermediate level in the estuaries during both the flood and nonflood *** concentrations of total phosphorus(TP),ammonia N(AN),and organic pollutants were greater in the Haihe River Basin than in the Liaohe River and Huanghe-Huaihe River *** concentration of total nitrogen(TN)in the Haihe River Basin was lower than that in the Liaohe River and Huanghe-Huaihe River *** metal concentrations in the Liaohe River Basin were greater than those in the Haihe River and Huanghe-Huaihe River *** annual mean concentrations of AN in the estuaries of the Haihe,Liaohe,and Huanghe(Yellow)rivers exhibited significant decreasing trends from 2013 to 2022,but no significant decreasing trends were found for permanganate index(COD_(Mn))or the *** concentrations of TN and AN were lower in the flood season than in the nonflood season,and the TP concentration was greater in the flood season than in the nonflood ***,the concentrations of organic pollutants did not exhibit significant *** sewage and industrial wastewater,substance exchange between air and water,nonpoint sources from rural and urban areas,and aquaculture wastewater were the major sources or factors responsible for water pollution in the estuaries.

关键词： water quality spatial-temporal variation source apportionment absolute principal component score-multiple linear regression estuary Bohai Sea

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Fabrication of Ni-Zn spinel ferrite with superior magnetic performance from electric arc furnace dust and iron scale

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Journal of Iron and Steel Research International 2025年第1期32卷 105-114页

作者： Yang Li wei-zhe Jie Chang Chen Yi Su Wu Zhou Hua Zhang Hong-wei Ni The State Key Laboratory of Refractories and Metallurgy Wuhan University of Science and TechnologyWuhan430081HubeiChina The Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education Wuhan University of Science and TechnologyWuhan430081HubeiChina Hubei Provincial Key Laboratory for New Processes of Ironmaking and Steelmaking Wuhan University of Science and TechnologyWuhan430081HubeiChina

The Ni-ZnFe_(2)O_(4)(NixZn_(1-x)Fe_(2)O_(4),x=0.4-0.7)spinel was synthesized using Zn2+extracted from electric arc furnace dust(EAFD),nickel chloride hexahydrate,and Fe^(3+)extracted from iron scale as raw *** zinc was selectively extracted from EAFD using CaO roasting followed by NH_(4)Cl solution *** ferric ion was leached from iron scale using HCl solution as acid *** experimental results demonstrate a high level of efficiency in the extraction of zinc,with a rate of 97.5%,and the leaching rate of ferric ion is 96.89%.The composition of the leaching solution is primary zinc and iron with low calcium,which is beneficial to the preparation of spinel *** influence of Ni content(x)and calcination temperature on the synthesis and magnetic properties of NixZn_(1-x)Fe_(2)O_(4)compounds was investigated by X-ray diffraction,scanning electron microscopy,and vibrating sample *** results revealed that both Ni content and calcination temperature significantly affect the synthesis and magnetic properties of spinel NixZn_(1-x)Fe_(2)O_(4).Under the conditions of Ni content set at x=0.6,calcination temperature of 1100℃,and a duration of 2 h,a spinel NixZn_(1-x)Fe_(2)O_(4)with high saturation magnetization(Ms=65.7 A m2 kg-1)and low coercivity(Hc=0.056 A m^(-1))was obtained.

关键词： Electric furnace arc dust Iron scale Spinel ferrite Magnetic performance Calcination temperature

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Observer-based event-triggered formation tracking control for second-order multi-agent systems in constrained region

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Science China(Information Sciences) 2025年第2期68卷 151-169页

作者： Fenglan SUN Zhonghua XU wei ZHU ■ KURTHS Key Lab of Intelligent Analysis and Decision on Complex Systems School of ScienceChongqing University of Posts and Telecommunications Key Lab of Intelligent Air-Ground Cooperative Control for Universities in Chongqing College of AutomationChongqing University of Posts and Telecommunications Department of Complexity Science Potsdam Institute for Climate Impact Research Institute of Physics Humboldt University of Berlin

In this paper, an event-triggered time-varying formation tracking control for a class of second-order nonlinear multiagent systems(MAS) operating within a constrained region is investigated. To mitigate the negative effects of external unknown disturbance, a novel disturbance observer with performance guarantees is proposed, enabling precise disturbance *** the artificial potential field(APF) method, a repulsive potential function is introduced to prevent inter-agent collisions as well as collisions with environmental obstacles. To reduce continuous communication and frequent system updates, a sliding mode technique is incorporated into the formation tracking controller, utilizing an event-triggered mechanism. The controller is also applicable to the formation control of MAS in switching-constrained regions. The achievement of the specified timevarying geometric formation is rigorously demonstrated through the Lyapunov framework. Numerical simulations are presented to validate the effectiveness of the theoretical results.

关键词： formation tracking control region constraints repulsive potential function event-triggered mechanism

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