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Identification and distribution of 13003 landslides in the northwest margin of Qinghai-Tibet Plateau based on human-computer interaction remote sensing interpretation

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China Geology 2024年第2期7卷 171-187页

作者： Wei Wang Yuan-dong Huang Chong Xu Xiao-yi shao Lei Li Li-ye Feng Hui-ran Gao Yu-long Cui Shuai Wu Zhi-qiang Yang Kai Ma National Institute of Natural Hazards Ministry of Emergency Management of ChinaBeijing 100085China Key Laboratory of Compound and Chained Natural Hazards Dynamics Ministry of Emergency Management of Chin12eijing 100085China School of Emergency Management Science and Engineering University of Chinese Academy of SciencesBeijing 100049China School of Soil and Water Conservation Beijing Forestry UniversityBeijing 100083China School of Civil Engineering and Architecture Anhui University of Science and TechnologyHuainan 232001China No.3 Bureau of China Metallurgical Geology Bureau Taiyuan 030031China

The periphery of the Qinghai-Tibet Plateau is renowned for its susceptibility to ***,the northwestern margin of this region,characterised by limited human activities and challenging transportation,remains insufficiently explored concerning landslide occurrence and *** the planning and construction of the Xinjiang-Tibet Railway,a comprehensive investigation into disastrous landslides in this area is essential for effective disaster preparedness and mitigation *** using the human-computer interaction interpretation approach,the authors established a landslide database encompassing 13003 landslides,collectively spanning an area of 3351.24 km^(2)(36°N-40°N,73°E-78°E).The database incorporates diverse topographical and environmental parameters,including regional elevation,slope angle,slope aspect,distance to faults,distance to roads,distance to rivers,annual precipitation,and *** statistical characteristics of number and area of landslides,landslide number density(LND),and landslide area percentage(LAP)are *** authors found that a predominant concentration of landslide origins within high slope angle regions,with the highest incidence observed in intervals characterised by average slopes of 20°to 30°,maximum slope angle above 80°,along with orientations towards the north(N),northeast(NE),and southwest(SW).Additionally,elevations above 4.5 km,distance to rivers below 1 km,rainfall between 20-30 mm and 30-40 mm emerge as particularly susceptible to landslide *** study area’s geological composition primarily comprises Mesozoic and Upper Paleozoic *** fault and human engineering activities have different degrees of influence on landslide ***,the significance of the landslide database,the relationship between landslide distribution and environmental factors,and the geometric and morphological characteristics of landslides are *** landslide H/L ratios in the study area are

关键词： Landslides Human-computer interaction interpretation Landslide database Spatial distribution Earthquake Rainfall Human engineering activity Qinghai-Tibet Plateau Geological hazards survey engineering

干眼炎症诊疗规范:2023欧洲专家共识解读

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眼科新进展 2024年第2期44卷 85-88页

作者：邵毅胡瑾瑜应平复旦大学附属眼耳鼻喉科医院眼科上海市200031 南昌大学第一附属医院眼科江西省南昌市330006

干眼是一种多因素引起的慢性眼表疾病,患者多数有疼痛的主诉,炎症是造成干眼眼表疼痛的重要原因之一。抗炎是干眼治疗的最重要手段。《干眼炎症诊断、管理和治疗:干眼炎症管理欧洲专家工作组的建议》详细介绍了干眼的最新炎症诊疗规范...

干眼是一种多因素引起的慢性眼表疾病,患者多数有疼痛的主诉,炎症是造成干眼眼表疼痛的重要原因之一。抗炎是干眼治疗的最重要手段。《干眼炎症诊断、管理和治疗:干眼炎症管理欧洲专家工作组的建议》详细介绍了干眼的最新炎症诊疗规范。本文就该共识进行全面解读,旨在提高广大医务工作者诊断和治疗干眼的水平,以便更好地服务于广大眼病患者。

关键词：干眼炎症管理诊断与治疗指南解读

冷却速率对La基非晶合金β弛豫行为和应力弛豫的影响

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物理学报 2024年第3期73卷 188-198页

作者：孟绍怡郝奇王兵段亚娟乔吉超西北工业大学力学与土木建筑学院西安710072 西北工业大学物理科学与技术学院西安710072 西北工业大学重庆科创中心重庆401135

β弛豫行为及应力弛豫是探索非晶合金微观结构非均匀性的重要切入口.β弛豫行为及应力弛豫与非晶合金扩散、玻璃转变行为以及塑性变形等密切相关,探究它们之间关联有重要科学意义.本文以典型的La基非晶合金作为研究载体,系统地探究了通...

β弛豫行为及应力弛豫是探索非晶合金微观结构非均匀性的重要切入口.β弛豫行为及应力弛豫与非晶合金扩散、玻璃转变行为以及塑性变形等密切相关,探究它们之间关联有重要科学意义.本文以典型的La基非晶合金作为研究载体,系统地探究了通过不同冷却速率所得块体样品与条带样品的β弛豫特征及应力弛豫行为.结果表明,冷却速率是控制玻璃体系能量状态,进而影响其物理力学性能的重要参数.冷却速率越大,低温内耗更大,对应β弛豫激活能更小,β弛豫行为在温度谱中展宽更大,表明高冷却速率导致原子移动性更大,微观尺度结构非均匀程度更高.基于应力弛豫测量与分析,发现高冷却速率变形特征时间减小,归一化应力衰减幅度更大,在外加力场作用下更易变形,变形单元更易激活以容纳结构形变.本研究为进一步厘清非晶合金β弛豫、变形及微观结构非均匀性之间关联提供了思路.

关键词：非晶合金 β弛豫冷却速率应力弛豫微观结构非均匀性

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数字化转型视域下我国县域商业发展态势与推进策略

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中国流通经济 2024年第6期38卷 12-25页

作者：依绍华吴顺利中国社会科学院财经战略研究院北京市100006 中国社会科学院大学应用经济学院北京市102488

县域商业是实现城乡融合发展和乡村振兴的有效途径,也是满足农村居民多元化、多层级、多形态消费需求的纽带,是推动县域经济高质量发展的关键动力源。近年来,我国县域商业发展已取得长足进步,主要体现在县域商品和服务市场规模稳定扩张...

县域商业是实现城乡融合发展和乡村振兴的有效途径,也是满足农村居民多元化、多层级、多形态消费需求的纽带,是推动县域经济高质量发展的关键动力源。近年来,我国县域商业发展已取得长足进步,主要体现在县域商品和服务市场规模稳定扩张、流通网络不断完善、流通新业态新模式加快孵化、农村电商创新发展、物流快递配送体系明显优化、农产品流通渠道持续延拓等多方面。但我国县域商业发展过程中仍然存在着数字基础设施相对滞后、商业网点数字化改造和升级程度不足、商贸流通企业数字化转型成效亟待提升等短板,成为制约我国县域商业高质量发展的主要堵点。进入数字经济时代,我国县域商业发展呈现出以新发展理念为科学指导、以数字技术和数据要素应用为驱动内核、以线上线下融合为关键路径、以满足人民对美好生活向往为最终目标的时代特征。数字化转型视域下,传统商业变革迎来新机遇,政府部门应进一步加强县域数字基础设施和商业大数据中心、“互联网+农产品”流通体系、物流配送体系三领域的建设力度,鼓励商贸流通新业态、新模式、新应用场景三维度的创新,实现县域市场主体竞争力、县域商业人力资本储备、县域消费环境三方面的改善,进而推动县域商业沿着更大规模、更高质量、更深层次、更便民惠民的方向发展,繁荣农村消费市场,推进乡村全面振兴。

关键词：县域商业发展数字化转型城乡融合发展乡村振兴

美国眼科学会干眼临床实践指南解读(2023)

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眼科新进展 2024年第9期44卷 673-678页

作者：邵毅陈程魏红南昌大学第一附属医院眼科江西省南昌市330006

2024年2月美国眼科学会发布了2023版的干眼临床实践指南,与2018版相比,该指南主要新增了三种获得美国食品药品监督管理局批准的干眼治疗药物(全氟己基辛烷、伐尼克兰和血制品)的使用推荐以及其他药物使用间期的临床证据,详细阐述了干眼...

2024年2月美国眼科学会发布了2023版的干眼临床实践指南,与2018版相比,该指南主要新增了三种获得美国食品药品监督管理局批准的干眼治疗药物(全氟己基辛烷、伐尼克兰和血制品)的使用推荐以及其他药物使用间期的临床证据,详细阐述了干眼与角膜屈光手术和白内障手术的相互影响,干眼的定义、诊断和检测方法、分类分级以及治疗等。本文将对该指南进行全面解读。

关键词：干眼诊断治疗指南

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RGS22 maintains the physiological function of ependymal cells to prevent hydrocephalus

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Science China Life Sciences 2024年

作者： Xue Pang Lin Gu Qiu-ying Han Jia-Qing Xing Ming Zhao shao-yi Huang Jun-Xi yi Jie Pan Hao Hong Wen Xue Xue-Qing Zhou Zhi-Hui Su Xin-Ran Zhang Li-Ming Sun shao-Zhen Jiang Dan Luo Ling Chen Zheng-Jie Wang Yu Yu Tian Xia Xue-Min Zhang Ai-Ling Li Tao Zhou Hong Cai Tao Li Nanhu Laboratory National Center of Biomedical Analysis School of Basic Medical Sciences Fudan University Department of Basic Medical Sciences School of Medicine Tsinghua University

Ependymal cells line the wall of cerebral ventricles and ensure the unidirectional cerebrospinal fluid （CSF） flow by beating their motile cilia coordinately. The ependymal denudation or ciliary dysfunction causes hydrocephalus. Here, we report that the deficiency of regulator of Gprotein signaling 22 （RGS22） results in severe congenital hydrocephalus in both mice and rats. Interestingly, RGS22 is specifically expressed in ependymal cells within the brain. Using conditional knock-out mice, we further demonstrate that the deletion of Rgs22 exclusively in nervous system is sufficient to induce hydrocephalus. Mechanistically, we show that Rgs22 deficiency leads to the ependymal denudation and impaired ciliogenesis. This phenomenon can be attributed to the excessive activation of lysophosphatidic acid receptor （LPAR） signaling under Rgs22–/–condition, as the LPAR blockade effectively alleviates hydrocephalus in Rgs22–/–rats. Therefore, our findings unveil a previously unrecognized role of RGS22 in the central nervous system, and present RGS22 as a potential diagnostic and therapeutic target for hydrocephalus.

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Optimized online filter stack spectrometer for ultrashort X-ray pulses

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Nuclear Science and Techniques 2024年第5期35卷 85-98页

作者： Jia-Xing Wen Ge Ma Ming-Hai Yu Yu-Chi Wu Yong-Hong Yan shao-yi Wang Huai-Zhong Gao Lu-Shan Wang Yu-Gang Zhou Qiang Li Yue Yang Fang Tan Xiao-Hui Zhang Jie Zhang Wen-Bo Mo Jing-Qin Su Wei-Min Zhou Yu-Qiu Gu Ming Zeng Zong-Qing Zhao Science and Technology on Plasma Physics Laboratory Laser Fusion Research CenterCAEPMianyang 621900China Department of Engineering Physics Tsinghua UniversityBeijing 100084China Key Laboratory of Particle and Radiation Imaging(Tsinghua University) Ministry of EducationBeijing 100084China School of Information Engineering Southwest University of Science and TechnologyMianyang 621010China

Currently,with the advent of high-repetition-rate laser-plasma experiments,the demand for online diagnosis for the X-ray spectrum is increasing because the laser-plasma-generated X-ray spectrum is very important for characterizing electron dynamics and *** this study,scintillators and silicon PIN(P-type–intrinsic-N-type semiconductor)diodes were used to construct a wideband online filter stack *** X-ray sensor and filter arrangement was optimized using a genetic algorithm to minimize the condition number of the response ***,the unfolding error was significantly reduced based on numerical *** detector responses were quantitatively calibrated by irradiating the scintillator and PIN diode with various nuclides and comparing the measuredγ-ray peaks.A prototype 15-channel spectrometer was developed by integrating an X-ray detector with front-and back-end *** prototype spectrometer could record X-ray pulse signals at a repetition rate of 1 ***,an optimized spectrometer was employed to record the real-time spectra of laser-driven bremsstrahlung *** optimized spectrometer offers a compact solution for spectrum diagnostics of ultrashort X-ray pulses,exhibiting improved accuracy in terms of spectrum measurements and repetition rates,and could be widely used in next-generation high-repetition-rate high-power laser facilities.

关键词： Filter stack spectrometer Laser plasma diagnostics X-ray diagnostics Scintillator PIN diode

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健康照明与儿童近视防控的研究进展

眼科新进展 2024年第2期44卷 155-158页

作者：令倩王义仓邵毅南昌大学第一附属医院眼科江西省南昌市330006 复旦大学附属眼耳鼻喉科医院眼科上海市200030

近视在我国发病率较高,是影响儿童视觉健康的重要因素。现有的研究表明,过长的屏幕使用时间和过少的户外活动是儿童近视的重要诱因,这些危险因素都与光照参数,如光照强度、时常、频率、光谱有关。并且,不当的夜间照明也会对儿童的昼夜...

近视在我国发病率较高,是影响儿童视觉健康的重要因素。现有的研究表明,过长的屏幕使用时间和过少的户外活动是儿童近视的重要诱因,这些危险因素都与光照参数,如光照强度、时常、频率、光谱有关。并且,不当的夜间照明也会对儿童的昼夜节律、睡眠产生影响并导致近视。现对屏幕时间、户外活动、光照属性以及昼夜节律的临床研究以及流行病学资料进行综述,为儿童近视预防提供一些建议与指导。

关键词：儿童近视光照屏幕时间昼夜节律

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哲学如何创造概念

吉林大学社会科学学报 2024年第3期64卷 8-16,5页

作者：孙利天刘绍艺吉林大学哲学基础理论研究中心暨哲学社会学院长春130012 吉林大学哲学社会学院长春130012

按照黑格尔的看法,哲学是概念的认识方式,它用概念之网把握世界、把握思想中的时代。法国哲学家德勒兹认为“哲学是一门创造概念的学科”[1]205,哲学的事业就是创造概念。那么,哲学如何用概念把握世界、哲学如何创造概念,就成为哲学的...

按照黑格尔的看法,哲学是概念的认识方式,它用概念之网把握世界、把握思想中的时代。法国哲学家德勒兹认为“哲学是一门创造概念的学科”[1]205,哲学的事业就是创造概念。那么,哲学如何用概念把握世界、哲学如何创造概念,就成为哲学的核心问题。随着中国式现代化的发展,我们的历史自信和文化自信日益增强,探索中国哲学的发展道路,创造中华民族自己的哲学理论,创造中华民族现代文明的哲学理论,已是当代中国哲学自觉的使命和任务。

关键词：文化自信中国式现代化当代中国哲学哲学理论德勒兹现代文明概念把握历史自信