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阅读障碍儿童双眼调节及集合功能的研究

中华眼视光学与视觉科学杂志 2021年第12期23卷 930-934页

作者：谭军伟乔丽萍侯跃双山东省聊城市眼科医院视光中心 252300 江西省南昌洪城爱尔眼科医院眼科 330038

目的:研究阅读障碍儿童双眼调节、集合功能的特点,为阅读障碍的预防和临床治疗提供依据。方法:病例对照研究。采用整群随机抽样法抽取天津市东丽区2所小学2301名3~5年级学生进行问卷调查。根据阅读障碍诊断标准及纳入标准筛选出102例阅... 详细信息

目的:研究阅读障碍儿童双眼调节、集合功能的特点,为阅读障碍的预防和临床治疗提供依据。方法:病例对照研究。采用整群随机抽样法抽取天津市东丽区2所小学2301名3~5年级学生进行问卷调查。根据阅读障碍诊断标准及纳入标准筛选出102例阅读障碍儿童作为阅读障碍组,并在非阅读障碍儿童中选出年龄、性别、班级相匹配的102例正常儿童作为对照组。分别检查阅读障碍组和对照组儿童的视力、屈光不正度数、近立体视、隐斜视度数、双眼调节幅度(移近法)、双眼调节反应(FCC)、双眼调节灵敏度、双眼正负相对调节(PRA/NRA)、调节性集合/调节(AC/A)、集合近点(NPC)等情况。采用t检验及χ^(2)检验分析2组检查结果的差异性。结果:对照组和阅读障碍组儿童屈光不正度数分别为(-2.08±2.18)D和(-1.95±2.00)D,2组比较差异无统计学意义;对照组和阅读障碍组的调节反应量分别为(0.02±0.63)D和(0.21±0.35)D,2组比较差异有统计学意义(t=5.065,P=0.011);对照组与阅读障碍组的PRA分别为(-2.77±1.82)D和(-1.88±1.06)D,差异有统计学意义(t=-2.153,P=0.040);对照组和阅读障碍组的双眼调节灵敏度分别为(8.20±2.26)cpm和(5.43±4.25)cpm,2组比较差异有统计学意义(t=2.402,P=0.027);对照组和阅读障碍组的AC/A分别为(3.81±0.81)Δ/D和(3.09±0.84)Δ/D,差异有统计学意义(t=2.491,P=0.025)。结论:阅读障碍儿童与正常人群在调节及集合功能方面均存在差异,阅读障碍儿童主要存在的调节及集合问题是调节不足和集合不足。

关键词：阅读障碍儿童调节集合

Fe3+ ion quantification with reusable bioinspired nanopores

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Chinese Chemical Letters 2025年第2期36卷 207-212页

作者： Yanqiong Wang Yaqi hou Fengwei Huo Xu hou Institute of Flexible Electronics (IFE Future Technologies) Xiang’an Campus Xiamen University State Key Laboratory of Physical Chemistry of Solid Surfaces College of Chemistry and Chemical Engineering Xiamen University Institute of Artificial Intelligence Xiamen University Department of Physics Research Institute for Biomimetics and Soft Matter Fujian Provincial Key Laboratory for Soft Materials Research Jiujiang Research Institute College of Physical Science and Technology Xiamen University Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM) Engineering Research Center of Electrochemical Technologies of Ministry of Education Xiamen University

Excessive Fe3+ion concentrations in wastewater pose a long-standing threat to human *** low-cost,high-efficiency quantification of Fe3+ion concentration in unknown solutions can guide environmental management decisions and optimize water treatment *** this study,by leveraging the rapid,real-time detection capabilities of nanopores and the specific chemical binding affinity of tannic acid to Fe3+,a linear relationship between the ion current and Fe3+ion concentration was *** this linear relationship,quantification of Fe3+ion concentration in unknown solutions was ***,ethylenediaminetetraacetic acid disodium salt was employed to displace Fe3+from the nanopores,allowing them to be restored to their initial conditions and reused for Fe3+ion *** reusable bioinspired nanopores remain functional over 330 days of *** recycling capability and the long-term stability of the nanopores contribute to a significant reduction in *** study provides a strategy for the quantification of unknown Fe3+concentration using nanopores,with potential applications in environmental assessment,health monitoring,and so forth.

关键词： Bioinspired nanopores Chemical binding affinity Fe3+ ion quantification Reusability Tannic acid

Marine dispersion of Fukushima-derived radiocesium in the North Pacific and its implications

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Science China Earth Sciences 2025年第2期68卷 389-406页

作者： Tong ZHANG Xiaolin hou Yukun FAN State Key Laboratory of Loess and Quaternary Geology Shaanxi Key Laboratory of Accelerator Mass Spectrometry Technology and ApplicationXi’an AMS CenterInstitute of Earth EnvironmentChinese Academy of SciencesXi’an 710061China University of Chinese Academy of Sciences Beijing 100049China Xi’an Institute for Innovative Earth Environment Research Xi’an 710061China

A key scientific approach to addressing the environmental radiation risks from Fukushima nuclear contaminated water(FNCW) discharge into the ocean is understanding and predicting the marine dispersion of *** dispersion of radiocesium(CsF:134Cs,137Cs) from the Fukushima nuclear accident in the North Pacific and its marginal seas post-2011 was systematically summarized,focusing on pathways,vertical distribution changes,and transit *** research examined CsFdispersion through the Kuroshio Extension and denser central mode water(D-CMW) to the eastern North Pacific,as well as through subtropical mode water(STMW),lighter central mode water(L-CMW),and D-CMW to the subtropical western North Pacific,China Seas,and Sea of *** considered broader implications of CsFdispersion in light of ongoing FNCW *** this prolonged liquid discharge and Kuroshio Extension’s barrier effect,it is crucial to emphasize the role of CMW besides STMW in transporting FNCW to the subtropical western North Pacific and its marginal *** research should focus on the key mechanism and longitude range of CMW crossing the Kuroshio *** short-lived134Cs decays rapidly during the storage and dispersion of FNCW,long-lived135Cs and135Cs/137Cs ratios can serve as valuable tracers for detecting and quantifying ***,there is an urgent need for high-precision analysis of these key radionuclides and their characteristic *** promptly detect,assess,and respond to FNCW intrusion,continuous monitoring and identification of nuclear pollution sources in key ocean currents and straits are ***,interdisciplinary research integrating monitoring with marginal sea circulation dynamics and high-resolution numerical simulations should be a priority.

关键词： Fukushima nuclear accident Fukushima nuclear contaminated water Marine dispersion Mode water Kuroshio Extension

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Luminescence: a new perspective for investigating perovskite precursors

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Science China Materials 2025年第1期68卷 312-313页

作者： Haofeng Zheng Shaocong hou School of Electrical Engineering and Automation Wuhan UniversityWuhan 430072China Wuhan University Shenzhen Research Institute Shenzhen 518057China

In the past two decades, perovskite materials have made significant progress in optoelectronic semiconductors, emerging as formidable candidates for the next generation of commercial solar cells, light-emitting diodes (LEDs), and *** the fundamental solution chemistry and photophysics in solution-processed perovskite devices is crucial for comprehending to achieve highly efficient optoelectronic devices.

关键词： optoelectronic diodes perovskite

Molecular dynamics simulation of quartz deformation under slow earthquake background

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Science China Earth Sciences 2025年第2期68卷 598-610页

作者： Jingxian SUN Qianqian GUO Quanlin hou College of Earth and Planetary Sciences University of Chinese Academy of SciencesKey Laboratory of Computational GeodynamicsCASBeijing 100049China

Slow earthquakes are the primary mechanism of slow energy release,and research on the focal mechanism has been *** have primarily focused on the friction law based on physical mechanisms and have suggested that slow earthquakes are caused by brittle ***,the focal strength and structural characteristics of slow earthquakes in subduction zones provide evidence of plastic *** is the role of plastic deformation in the focal mechanisms of slow earthquakes?Mechanochemical study have shown that mechanical forces can directly affect chemical *** this study,we examine the storage and release of chemical energy during plastic deformation and consider a mechanochemical process in the focal mechanism of slow *** with the Tersoff potential,molecular dynamics simulation on the shear deformation process of twoα-quartz crystals show that the shear modulus ofα-quartz is 18 GPa,and that the crystal model primarily exhibits atoms flowing and changing in the direction of chemical bonds during the steady-state flow *** molecular potential energy and stress vary in an oscillating up-and-down curve during shear,indicating that chemical energy can be stored and released during plastic *** is consistent with the energy variation during slow *** the initial simple-shear loading condition,α-quartz crystals undergo general shear deformation instead of plane strain and the angle between the longest instantaneous stretching axis(ISA_(1))and the shearing direction is approximately 30°,not 45°.Both the deformation type and direction of ISA_(1)are contrary to basic deformation theory,which may provide clues for future *** study reveals the process of quartz elastic-plastic shear deformation on an atomic *** information is useful for understanding focal mechanisms of slow *** study is part of a series of investigations on tectonic stress chemistry.

关键词： Slow earthquake α-quartz Plastic strain energy Tectonic stress chemistry Tersoff potential

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Practical approach for detecting k-nonseparability of multipartite quantum states

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Science China(Physics,Mechanics & Astronomy) 2025年第1期68卷 28-44页

作者： Jie Guo Jinchuan hou Xiaofei Qi Kan He College of Mathematics Taiyuan University of TechnologyTaiyuan 030006China School of Mathematics and Statistics Shanxi UniversityTaiyuan 030006China Key Laboratory of Complex Systems and Data Science of Ministry of Education Shanxi UniversityTaiyuan 030006China

The instantaneous detection of entanglement in quantum states poses a significant challenge in the fields of quantum computation and quantum information,and there are no practical methods or tools to complete this task satisfactorily so *** propose a sufficient and necessary criterion of k-nonseparability for any n-partite finite or infinite dimensional systems,2≤k≤*** criterion serves as the foundation for a practical scheme designed to detect entanglement and k-nonseparability across multipar-tite finite-dimensional *** exemplify the application of our scheme,we have developed a software tool that facilitates swift and precise identification of entanglement,k-nonseparability,and genuine entanglement within n-qubit systems,specifically tailored for systems with 2≤n≤4.

关键词： multipartite systems entanglement states entanglement witnesses k-nonseparability

山东省聊城市度假区2 060例学龄前儿童屈光状况调查

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中华眼视光学与视觉科学杂志 2024年第10期26卷 768-771页

作者：谭军伟侯跃双张沛任云飞山东省聊城市眼科医院医学视光科聊城

目的: 调查山东省聊城市度假区学龄前儿童屈光状况, 分析学龄前儿童屈光状况分布规律。方法: 横断面调查研究。于2023年采用随机抽样法抽取山东省聊城市度假区16所幼儿园2 060名(4 120眼)学龄前儿童, 使用美国伟伦SureSight手持验光仪... 详细信息

目的: 调查山东省聊城市度假区学龄前儿童屈光状况, 分析学龄前儿童屈光状况分布规律。方法: 横断面调查研究。于2023年采用随机抽样法抽取山东省聊城市度假区16所幼儿园2 060名(4 120眼)学龄前儿童, 使用美国伟伦SureSight手持验光仪检查其屈光状况, 按照不同年级和屈光状况进行分类, 通过卡方趋势检验分析不同年级的屈光状态发展趋势。采用箱式图观察不同年级、不同性别视力分布区间范围。结果: 2 060名(4 120眼)学龄前儿童的视力低常检出率为12.28%。随着年级升高, 屈光异常的检出率呈下降趋势, 组间比较差异具有统计学意义(χ2=19.64, P<0.001);单纯远视和复合远视散光儿童眼数也呈下降趋势(χ2linear trend=12.97, P<0.001;χ2linear trend=17.35, P<0.001)。小班组、中班组、大班组视力数据分布集中范围分别为0.4～0.5、0.5～0.7、0.9～1.0。同一年级中, 男生和女生视力数据分布集中范围相同。结论: 随着年级升高, 学龄前儿童视力异常和屈光异常的检出率呈下降趋势;且单纯远视和复合远视散光儿童眼数呈下降趋势, 符合儿童正常发育规律。学龄前儿童视力筛查中, 不同性别的视力区间范围相同。

关键词：儿童, 学龄前屈光状况视力屈光不正

Multi-layer multi-pass friction rolling additive manufacturing of Al alloy:Toward complex large-scale high-performance components

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 425-438页

作者： Haibin Liu Run hou Chenghao Wu Ruishan Xie Shujun Chen College of Mechanical&Energy Engineering Beijing University of TechnologyBeijing 100124China Chongqing Research Institute of Beijing University of Technology Chongqing 401121China

At present,the emerging solid-phase friction-based additive manufacturing technology,including friction rolling additive man-ufacturing(FRAM),can only manufacture simple single-pass *** this study,multi-layer multi-pass FRAM-deposited alumin-um alloy samples were successfully prepared using a non-shoulder tool *** material flow behavior and microstructure of the over-lapped zone between adjacent layers and passes during multi-layer multi-pass FRAM deposition were studied using the hybrid 6061 and 5052 aluminum *** results showed that a mechanical interlocking structure was formed between the adjacent layers and the adja-cent passes in the overlapped center *** friction and rolling of the tool head led to different degrees of lateral flow and plastic deformation of the materials in the overlapped zone,which made the recrystallization degree in the left and right edge zones of the over-lapped zone the highest,followed by the overlapped center zone and the non-overlapped *** tensile strength of the overlapped zone exceeded 90%of that of the single-pass deposition *** is proved that although there are uneven grooves on the surface of the over-lapping area during multi-layer and multi-pass deposition,they can be filled by the flow of materials during the deposition of the next lay-er,thus ensuring the dense microstructure and excellent mechanical properties of the overlapping *** multi-layer multi-pass FRAM deposition overcomes the limitation of deposition width and lays the foundation for the future deposition of large-scale high-performance components.

关键词： aluminum alloy additive manufacturing solid-state friction stir welding multi-layer multi-pass

Defect Engineering with Rational Dopants Modulation for High‑Temperature Energy Harvesting in Lead‑Free Piezoceramics

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Nano-Micro Letters 2025年第3期17卷 87-101页

作者： Kaibiao Xi Jianzhe Guo Mupeng Zheng Mankang Zhu Yudong hou Key Laboratory of Advanced Functional Materials Ministry of EducationCollege of Materials Science and EngineeringBeijing University of TechnologyBeijing 100124People’s Republic of China

High temperature piezoelectric energy harvester(HTPEH)is an important solution to replace chemical battery to achieve independent power supply of HT wireless ***,simultaneously excellent performances,including high figure of merit(FOM),insulation resistivity(ρ)and depolarization temperature(Td)are indispensable but hard to achieve in lead-free piezoceramics,especially operating at 250°C has not been reported ***,well-balanced performances are achieved in BiFeO3–BaTiO3 ceramics via innovative defect engineering with respect to delicate manganese *** to the synergistic effect of enhancing electrostrictive coefficient by polarization configuration optimization,regulating iron ion oxidation state by high valence manganese ion and stabilizing domain orientation by defect dipole,comprehensive excellent electrical performances(Td=340°C,ρ250°C>10^(7)Ωcm and FOM_(250°C)=4905×10^(–15)m^(2)N^(−1))are realized at the solid solubility limit of manganese *** HT-PEHs assembled using the rationally designed piezoceramic can allow for fast charging of commercial electrolytic capacitor at 250°C with high energy conversion efficiency(η=11.43%).These characteristics demonstrate that defect engineering tailored BF-BT can satisfy high-end HT-PEHs requirements,paving a new way in developing selfpowered wireless sensors working in HT environments.

关键词： Lead-free piezoceramic Defect engineering Dopants modulation High-temperature Piezoelectric energy harvester