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Effectivity and safety of trifocal intraocular lenses and capsular tension rings implantation for cataract patients with axial high myopia

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International Journal of Ophthalmology(English edition) 2024年第3期17卷 499-508页

作者： shan hua Qiu-Xia Xie Hu Wang Jing-Xiang Zhong Dongguan Aier Eye Hospital Jinan UniversityDongguan 523106Guangdong ProvinceChina Department of Ophthalmology the First Affiliated Hospital of Jinan UniversityGuangzhou 510630Guangdong ProvinceChina Department of Ophthalmology the Sixth Affiliated Hospital of Jinan UniversityDongguan 523576Guangdong ProvinceChina

●AIM:To assess effectivity and safety of trifocal intraocular lenses(IOLs)and capsular tension rings in treating cataract patients with axial high myopia.●METHODS:A prospective nonrandomized controlled clinical trial was *** 98 eyes(74 patients)who underwent femtosecond laser-assisted cataract surgery(FLACS)with trifocal IOLs were enrolled in the study and followed up for 2y after surgery:46 eyes(33 patients)with capsular tension ring implantation in the long axial lengths(AL)group(260.05).The dysfunctional lens index and total modulation transfer function(MTF)average height were similar between the two *** postoperative internal coma aberrations in the axial high myopia eyes were significantly higher than that in the normal AL group(P<0.05).The total satisfaction score in the long AL group(91.32±2.76)was slightly higher than that in the normal AL group(90.36±3.47),but there was no difference(P=0.136).A statistically negative correlation was found between corrected distance visual acuity(CDVA)and dysfunctional lens index(r=-0.382,P=0.009),and between CDVA and the total MTF average height(r=-0.374,P=0.01).But there was no significant correlation between CDVA and total satisfaction score(r=0.059,P=0.696).Postoperative complications mainly presented as posterior capsular opacity(PCO),retinal detachment and cystoid macular *** was no difference in the incidenc

关键词： trifocal intraocular lenses capsular tension ring axial high myopia cataract visual quality

Coexistence of All-Order Topological States in a Three-Dimensional Phononic Topological Crystalline Insulator

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Research 2024年第2期2023卷 511-518页

作者： hua-shan Lai Hao Chen Chu-Hao Xia Si-Yuan Yu Cheng He Yan-Feng Chen National Laboratory of Solid State Microstructures&Department of Materials Science and Engineering Nanjing UniversityNanjng 210093China Collaborative Innovation Center of Advanced Microstructures Nanjing University Nanjng 210093China Jiangsu Key Laboratory of Artificial Functional Materials Nanjing University Nanjing 210093China

Classical-wave topological materials lacking intrinsic half-integer spins are less robust while more ***,we explore a single 3-dimensional phononic topological crystalline insulator that simultaneously exhibits a whole family of first-order quadratic surface,second-order hinge,and third-order corner states within the same *** a topological crystalline insulator hosting all-order phases originates from the different topological nature when hierarchically projected onto different facets and lower dimensions,thus free from trivial cladding *** work offers an ideal platform for either robust wave propagation or localization in on-demand dimensions and may facilitate dimension division multiplexing technology.

关键词： topological dimensions crystalline

Ingredients-based Methodology and Fuzzy Logic Combined Short-Duration Heavy Rainfall Short-Range Forecasting:An Improved Scheme

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Journal of Tropical Meteorology 2024年第3期30卷 241-256页

作者： TIAN Fu-you XIA Kun SUN Jian-hua ZHENG Yong-guang hua shan National Meteorological Center Beijing100081 China State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics(LASG) Institute of Atmospheric PhysicsChinese Academy of Sciences(IAP/CAS)Beijing 100029 China Key Laboratory of Cloud-Precipitation Physics and Severe Storms(LACS) Institute of Atmospheric PhysicsChinese Academy of Sciences(IAP/CAS)Beijing 100029 China

Short-duration heavy rainfall(SHR),as delineated by the National Meteorological Center of the China Me-teorological Administration,is characterized by hourly rainfall amounts no less than 20.0 *** is one of the most common convective weather phenomena that can cause severe ***-range forecasting of SHR is an important part of operational severe weather *** the present study,an improved objective SHR forecasting scheme was developed by adopting the ingredients-based methodology and using the fuzzy logic *** 1.0°×1.0°National Centers for Environmental Prediction(NCEP)final analysis data and the ordinary rainfall(0.1-19.9 mm h-1)and SHR observational data from 411 stations were used in the improved *** best lifted index,the total precipitable water,the 925 hPa specific humidity(Q 925),and the 925 hPa divergence(DIV 925)were selected as predictors based on objective *** distributed membership functions of predictors were obtained based on relative frequency *** weights of predictors were also objectively *** with a typhoon SHR case and a spring SHR case show that the main possible areas could be captured by the improved *** of SHR forecasts within 96 hours with NCEP global forecasts 1.0°×1.0°data initiated at 08:00 Beijing Time during the warm seasons in 2015 show the results were improved from both deterministic and probabilistic *** study provides an objectively feasible choice for short-range guidance forecasts of *** scheme can be applied to other convective phenomena.

关键词： ingredients-based methodology fuzzy logic approach probability of short-duration heavy rainfall(SHR) improved forecasting scheme objectively obtained membership functions

Girvanella fossils from the Phanerozoic:Distribution, evolution and controlling factors

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Journal of Palaeogeography 2024年第4期13卷 924-938页

作者： hua-shan Zhang Ming-Yue Dai Yong-An Qi Lan-Lan Han Zhong-Lei Yin Song-hua Chen Liang-Biao Lin Institute of Sedimentary Geology Chengdu University of Technology School of Resources and Environment Henan Polytechnic University

Girvanella is one of the common genera of cyanobacteria that plays a monumental role in the evolution of life on Earth and the formation of *** on a detailed search in the literature of Girvanella fossils,we have compiled a global database of Girvanella fossils and revealed the evolution of Girvanella fossils throughout the *** species,Girvanella kasakiensis,Girvanella problematica,Girvanella wetheredii,and Girvanella staminea,are recognized and *** data show that Girvanella fossils have well-defined temporal distribution during the Paleozoic Era,have a significant temporal gap in the Mesozoic Era,and have only been recorded sporadically in the Cenozoic *** were relatively abundant during the Cambrian Epoch 2-Early Ordovician,Late Ordovician,Late Devonian-Mississippian,and tended to lesser degrees during the Silurian-Early Devonian,Lopingian Epoch-Middle Jurassic,and Cretaceous-Present ***,the evolution of the abundance and diversity of Girvanella fossils was fundamentally consistent and showed episodical declining during the *** further explore these relationships,we thoroughly compared them with environmental factors such as seawater carbonate saturation state,Ca2+concentration,pH values,and atmospheric partial pressure of carbon dioxide （p CO2）.This study indicates that seawater carbonate saturation state and Ca2+concentration are major controls on secular patterns of the abundance and diversity of Girvanella fossils,together with the secondary factors of pH values and p *** the long history of Girvanella fossils,their abundance and diversity offer the potential to assist the interpretation of the long-term evolution of marine and atmosphere components during the Phanerozoic.

关键词： Girvanella Temporal distribution Abundance Diversity Control factors

循环多特征信息融合法:一种基于深度学习的车道线检测方法

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科学技术与工程 2024年第10期24卷 4156-4164页

作者：姚善化赵帅安徽理工大学电气与信息工程学院淮南232001

车道线检测是辅助驾驶和自动驾驶的核心技术之一。为了进一步增强车道线特征的提取能力,提出了一种基于深度学习的循环多特征信息融合车道线识别算法。针对模型计算效率问题,该算法将车道线检测问题视为基于行选择单元格的分类问题;针... 详细信息

车道线检测是辅助驾驶和自动驾驶的核心技术之一。为了进一步增强车道线特征的提取能力,提出了一种基于深度学习的循环多特征信息融合车道线识别算法。针对模型计算效率问题,该算法将车道线检测问题视为基于行选择单元格的分类问题;针对图像中车道信息聚合问题,提出了一种新的循环多特征信息聚合(recurrent multi-feature information aggregator,RMFA)方法,并将该方法与残差神经网络(residual neural network,ResNet)相结合提出融合上下文及多通道信息的车道线识别网络ResNet-RMFA。将该网络模型在Tusimple和CULane公开数据集上进行了性能测试,实验结果表明该模型单帧图像的推理时间可达4.8 ms,在Tusimple数据集上的精确度为96.07%,在CULane数据集上的F_(1)(IoU=0.5)评分为69.3%,达到了速度与精度的良好平衡。

关键词：自动驾驶车道线检测深度学习残差神经网络信息聚合

智慧图书馆体系下的知识资源建设探析——以浙江省知识资源细颗粒度建设和标签标引项目为例

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图书情报工作 2024年第11期68卷 92-98页

作者：单骅邵波刘婷浙江图书馆杭州310007 南京大学信息管理学院南京210033

[目的/意义]“知识资源细颗粒度建设和标签标引”作为全国智慧图书馆体系建设的子项目,它的建设意味着开启了知识资源细颗粒管理的新时代。研究该项目的发展,可以为用户提供准确的、个性化的知识。[方法/过程]阐述浙江省知识资源细颗粒... 详细信息

[目的/意义]“知识资源细颗粒度建设和标签标引”作为全国智慧图书馆体系建设的子项目,它的建设意味着开启了知识资源细颗粒管理的新时代。研究该项目的发展,可以为用户提供准确的、个性化的知识。[方法/过程]阐述浙江省知识资源细颗粒度建设和标签标引项目的建设过程,并对取得的成效及存在的问题进行分析研究。[结果/结论]提出知识资源细颗粒度和标签标引项目发展策略,要加强统筹协调,制定建设目标与规划,规范数字化流程质量管理,严审项目内容的敏感性,开展人员培训及加强颗粒化内容深度挖掘等研究。

关键词：智慧图书馆知识资源建设细颗粒度建设标签标引项目

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拦挡作用对黄土坡面泥流动力过程影响机制

西北地质 2024年第3期57卷 285-292页

作者：华山贾晓丹张霞长安大学地球科学与资源学院陕西西安710054 中国地质调查局西安地质调查中心/西北地质科技创新中心陕西西安710119 西安理工大学西北旱区生态水利国家重点实验室陕西西安710048

泥石流运动过程中拦挡坝的拦挡作用是泥流防治研究中的一项重要议题。本研究引入侵蚀速率概念,建立了含有拦挡坝的泥流连续介质模型,阐明了拦挡坝拦挡作用对泥流运动行为和动力过程的影响。结果表明,泥流撞击拦挡坝发生漫坝时,拦挡坝遭... 详细信息

泥石流运动过程中拦挡坝的拦挡作用是泥流防治研究中的一项重要议题。本研究引入侵蚀速率概念,建立了含有拦挡坝的泥流连续介质模型,阐明了拦挡坝拦挡作用对泥流运动行为和动力过程的影响。结果表明,泥流撞击拦挡坝发生漫坝时,拦挡坝遭受了逐渐加速泥流巨大的影响。拦挡坝发挥出拦截和拦挡双重功效:一方面,使得泥流灾害体横向扩展增强,纵向延伸减弱,滑移距离减少,降低了泥流的致灾范围;另一方面,降低了泥流侵蚀夹带作用,减少了泥流灾害体质量,使得灾害体面积和体积分别下降2.48%和3.63%。同时,使泥流偏离流动方向,泥流运动的平均速度下降10.62%,缓解了泥流的冲击力,削减了灾害体16.17%的致灾能量,进一步降低了泥流的致灾强度和致灾规模。引入基底地形和侵蚀速率的数值模型为泥石流动力机制提供理论支持,也为泥流防治提供技术指导。

关键词：泥流拦挡坝动力机制致灾能量

中药创新药知识产权综合性保护体系的初探——基于以岭药业连花清瘟方的实证分析

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中国新药杂志 2024年第8期33卷 745-751页

作者：周佳毛骥薛姣何华山国家知识产权局专利局专利审查协作江苏中心苏州215000

中药复方的创新是中医药的研究热点,目前创新主体缺乏系统性策略来灵活运用各种形式的保护制度,在现行法律及规范下,研究中药创新药的知识产权综合性保护体系是有必要的。本文运用了实证分析的方法,通过深度挖掘以岭药业涉及连花清瘟方... 详细信息

中药复方的创新是中医药的研究热点,目前创新主体缺乏系统性策略来灵活运用各种形式的保护制度,在现行法律及规范下,研究中药创新药的知识产权综合性保护体系是有必要的。本文运用了实证分析的方法,通过深度挖掘以岭药业涉及连花清瘟方的专利、行政保护、商标、外观设计等情报信息,对于完善中药创新药知识产权综合性保护体系进行了初探。创新主体应当灵活运用行政保护、专利、商业秘密制度,将各种保护制度有机衔接,从而进行更为全面、系统综合保护。

关键词：中药创新药知识产权综合性保护连花清瘟方实证分析

基于抗扰动Smith预估补偿的磨煤机出口风粉温度优化控制

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洁净煤技术 2024年第9期30卷 131-139页

作者：陈刚尹瑞麟范常浩华山孙立国家能源集团科学技术研究院有限公司低碳智能燃煤发电与超净排放全国重点实验室江苏南京210023 国能南京电力试验研究有限公司江苏南京210023 东南大学能源与环境学院江苏南京211189

“双碳”背景下,作为高能耗高排放的火电机组,其燃烧性能直接影响发电效率和碳排放量。锅炉燃烧优化控制对运行优化和灵活调峰是有重要意义。电站锅炉磨煤机的出口风粉温度控制面临大延迟、多干扰问题,对燃煤机组安全稳定运行具有重要... 详细信息

“双碳”背景下,作为高能耗高排放的火电机组,其燃烧性能直接影响发电效率和碳排放量。锅炉燃烧优化控制对运行优化和灵活调峰是有重要意义。电站锅炉磨煤机的出口风粉温度控制面临大延迟、多干扰问题,对燃煤机组安全稳定运行具有重要影响。基于Smith预估控制器,在补偿回路中增设反馈环节,实现了高效抗干扰,提升磨煤机风粉温度控制性能。通过Taylor级数展开和待定系数法求取模型近似转换参数,获得一阶惯性纯滞后模型,进而设计抗扰动型Smith预估补偿控制器。通过与单回路PID控制试验对比,发现Smith预估补偿控制算法可有效补偿控制对象的纯延迟滞后环节,单位阶跃响应超调量降低36.5%,调节时间缩短65.8%。相比经典Smith预估补偿控制算法,抗扰动Smith预估补偿控制算法可提高控制算法的抗扰动性能,并显著改善控制对象的动态特性,单位阶跃响应超调量减小44.7%,调节时间缩短15.7%。同时,实现了扰动最大偏差和收敛时间的降低。最后,在某660 MW超临界一次再热燃煤机组上应用该方法,实现了磨煤机出口风粉温度实际值对设定值的平稳跟踪,进一步验证了该方法的有效性。

关键词：抗扰动 Smith预估补偿控制模型转换非线性规划