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Sensitivity analysis of regional rainfall-induced landslide based on UAV photogrammetry and LSTM neural network

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Journal of Mountain Science 2023年第11期20卷 3312-3326页

作者： ZHAO Lian-heng XU Xin LYU Guo-shun huang dong-liang LIU Min CHEN Qi-min School of Civil Engineering Central South UniversityChangsha 410075China Key Laboratory of Heavy-haul Railway Engineering Structure Ministry of EducationCentral South UniversityChangsha410075China Hunan Provincial Key Laboratory for Disaster Prevention and Mitigation of Rail Transit Engineering Structures CentralSouth UniversityChangsha 410075China Hunan Tieyuan Civil Engineering Testing Co. LTDChangsha 410075China

Rainfall stands out as a critical trigger for landslides,particularly given the intense summer rainfall experienced in Zheduotang,a transitional zone from the southwest edge of Sichuan Basin to Qinghai Tibet *** area is characterized by adverse geological conditions such as rock piles,debris slopes and unstable ***,due to the absence of historical rainfall records and landslide inventories,empirical methods are not applicable for the analysis of rainfall-induced *** we employ a physically based landslide susceptibility analysis model by using highprecision unmanned aerial vehicle(UAV)photogrammetry,field boreholes and long short term memory(LSTM)neural network to obtain regional topography,soil properties,and rainfall *** applied the Transient Rainfall Infiltration and Grid-Based Regional Slope-Stability(TRIGRS)model to simulate the distribution of shallow landslides and variations in porewater pressure across the region under different rainfall intensities and three rainfall patterns(advanced,uniform,and delayed).The landslides caused by advanced rainfall pattern mostly occurred in the first 12 hours,but the landslides caused by delayed rainfall pattern mostly occurred in the last 12 ***,all the three rainfall patterns yielded landslide susceptibility zones categorized as high(1.16%),medium(8.06%),and low(90.78%).Furthermore,total precipitation with a rainfall intensity of 35 mm/h for 1 hour was less than that with a rainfall intensity of 1.775 mm/h for 24hours,but the areas with high and medium susceptibility increased by 3.1%.This study combines UAV photogrammetry and LSTM neural networks to obtain more accurate input data for the TRIGRS model,offering an effective approach for predicting rainfall-induced shallow landslides in regions lacking historical rainfall records and landslide inventories.

关键词： Regional landslide TRIGRS UAV photography Rainfall landslide LSTM neural network

Fourier-shape-based reconstruction of rock joint profile with realistic unevenness and waviness features

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Journal of Central South University 2019年第11期26卷 3103-3113页

作者： NIE Zhi-hong WANG Xiang huang dong-liang ZHAO Lian-heng School of Civil Engineering Central South UniversityChangsha 410075China Key Laboratory of Heavy-haul Railway Engineering Structure(Ministry of Education) Central South UniversityChangsha 410075China

Rock joint shape characteristics,waviness and unevenness play essential but distinct roles in shear mechanism of rock *** study presents a novel method to generate virtual rock joint profiles with realistic waviness and unevenness ***,joint profiles are obtained by 3D laser scanning ***,quantification of waviness and unevenness is conducted by traditional method,including digital filtering technique and roughness parameter ***,the discrete Fourier transform(DFT)method is employed to analyze the joint *** representative Fourier shape descriptors(D3,D8)for characterization of waviness and unevenness are ***,the inverse discrete Fourier transform(IDFT)is adopted to reconstruct the joint profiles with random values of phase angles but prescribed amplitudes controlled by D3 and *** traditional method is then applied to the reconstructed joint profiles to examine statistically the relationships between D3 and D8 and parameters RL of waviness and unevenness,*** results show that larger D8 tends to result in larger waviness while higher D3 tends to increase *** charts for estimation of waviness and unevenness with different pairs of D3 and D8 are also provided to facilitate implementation of random joint reconstruction.

关键词： rock joint profile joint shape analysis discrete Fourier transform joint reconstruction

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所得税会计准则的国际比较

商业经济与管理 2006年第6期 69-74页

作者：黄董良浙江财经学院浙江杭州310012

企业所得税是发达国家的主体税种,也是我国的重要税种。所得税会计作为现代税务会计的核心颇受各国重视。为了规范所得税的会计确认、计量与披露,国际上许多国家制定了所得税会计准则或会计制度。本文通过英国、美国、中国的所得税会计... 详细信息

企业所得税是发达国家的主体税种,也是我国的重要税种。所得税会计作为现代税务会计的核心颇受各国重视。为了规范所得税的会计确认、计量与披露,国际上许多国家制定了所得税会计准则或会计制度。本文通过英国、美国、中国的所得税会计准则与国际会计准则的比较,揭示其相互之间的共性与主要差异,并对进一步完善我国的所得税会计准则提出相应建议。

关键词：所得税会计准则比较

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共同知识、会计信息供求与会计信息质量

财经论丛（浙江财经学院学报） 2005年第3期 82-87页

作者：黄董良黄芳浙江财经学院浙江杭州310012 中南财经政法大学湖北武汉340074

共同知识概念引入会计研究在我国基本上还处于初始状态。本文应用共同知识理论分析研究了会计信息形成过程中,供求双方的行为动机及相关能力对会计信息质量的影响,认为扩大共同知识是当前改善和提高我国会计信息质量的一条崭新路径。

关键词：共同知识会计会计信息供求会计信息质量

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企业税务信息披露:一种社会责任视角的分析

财经论丛 2008年第3期 21-27页

作者：黄董良方婧浙江财经学院会计学院浙江杭州310018

企业社会责任问题目前在理论界与实务界正越来越受到重视。向社会公众披露真实准确的财务信息,尤其是披露税务信息是现代企业履行社会责任的重要体现。本文立足于企业社会责任场域,从企业社会责任视角,分析企业税务信息披露的现状,探讨... 详细信息

企业社会责任问题目前在理论界与实务界正越来越受到重视。向社会公众披露真实准确的财务信息,尤其是披露税务信息是现代企业履行社会责任的重要体现。本文立足于企业社会责任场域,从企业社会责任视角,分析企业税务信息披露的现状,探讨造成企业税务信息披露缺陷的成因,并有针对性地提出切实可行的改进措施,以促进企业税务信息披露更为充分,披露内容更为准确,从而更好地履行其社会责任。

关键词：税务信息社会责任披露

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应用多工质朗肯循环提高火电厂效率

动力工程 2006年第2期26卷 273-277页

作者：肖立川陈宏黄冬良陈辉江苏工业学院常州213016 杨子石化热电厂南京210048

由于水蒸汽的热力性质所限制,常规火力发电厂应用的水蒸汽朗肯循环效率大大地低于同温差下的卡诺循环效率。在现代技术条件下;其效率一般在42%以下,而采用钾-联苯—水蒸汽三工质朗肯循环,或采用钾-水蒸汽二工质朗肯循环可使火电厂热效... 详细信息

由于水蒸汽的热力性质所限制,常规火力发电厂应用的水蒸汽朗肯循环效率大大地低于同温差下的卡诺循环效率。在现代技术条件下;其效率一般在42%以下,而采用钾-联苯—水蒸汽三工质朗肯循环,或采用钾-水蒸汽二工质朗肯循环可使火电厂热效率提高到50%以上,能节约燃料35%左右,同时也大大地减轻了火力发电厂对环境的各种污染。在多工质朗肯循环中,必须根据各工质的热力学性质优化选择各工质的参数,充分发挥循环特性接近卡诺循环的作用,同时应解决好泄漏问题和选用合适的耐高温材料。在燃料价格及年运行小时较高时,多工质朗肯循环还是有较好的经济性。

关键词：动力系统工程多工质朗肯循环火电厂效率工质参数泄漏材料选用

A promising approach for quantifying focal stroke modeling and assessing stroke progression:optical resolution photoacoustic microscopy photothrombosis

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Neural Regeneration Research 2025年第7期20卷 2029-2037页

作者： Xiao liang Xingping Quan Xiaorui Geng Yujing huang Yonghua Zhao Lei Xi Zhen Yuan Ping Wang Bin Liu Faculty of Health Sciences University of MacaoMacao Special Administrative RegionChina Center for Cognitive and Brain Sciences University of MacaoMacao Special Administrative RegionChina Department of Biomedical Engineering Southern University of Science and TechnologyShenzhenGuangdong ProvinceChina State Key Laboratory of Quality Research in Chinese Medicine Institute of Chinese Medical SciencesUniversity of MacaoTaipaMacao Special Administrative RegionChina Department of Emergency Zhujiang HospitalSouthern Medical UniversityGuangzhouGuangdong ProvinceChina

To investigate the mechanisms underlying the onset and progression of ischemic stroke,some methods have been proposed that can simultaneously monitor and create embolisms in the animal cerebral ***,these methods often require complex systems and the effect of age on cerebral embolism has not been adequately studied,although ischemic stroke is strongly *** this study,we propose an optical-resolution photoacoustic microscopy-based visualized photothrombosis methodology to create and monitor ischemic stroke in mice simultaneously using a 532 nm pulsed *** observed the molding process in mice of different ages and presented age-dependent vascular embolism ***,we integrated optical coherence tomography angiography to investigate age-associated trends in cerebrovascular variability following a *** imaging data and quantitative analyses underscore the differential cerebrovascular responses to stroke in mice of different ages,thereby highlighting the technique's potential for evaluating cerebrovascular health and unraveling age-related mechanisms involved in ischemic strokes.

关键词： age-dependent cerebral cortex ischemic stroke mouse model optical coherence tomography angiography photoacoustic microscopy photothrombosis vascular imaging

异氟醚吸入对老年大鼠长时程增强和脑源性神经营养因子的影响

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临床麻醉学杂志 2014年第11期30卷 1118-1120页

作者：石林玉黄东亮黄斌南京大学医学院附属鼓楼医院麻醉科 210008 南京长江医院普外科南京医科大学附属脑科医院伽玛刀治疗中心

目的通过观察异氟醚麻醉后老年大鼠海马长时程增强(LTP)和脑源性神经营养因子(BDNF)的变化,探讨术后认知功能障碍(POCD)的可能机制。方法健康雄性20月龄SD大鼠72只,随机分为异氟醚处理组(I组)和对照组(C组),每组36只。I组大鼠异氟醚吸... 详细信息

目的通过观察异氟醚麻醉后老年大鼠海马长时程增强(LTP)和脑源性神经营养因子(BDNF)的变化,探讨术后认知功能障碍(POCD)的可能机制。方法健康雄性20月龄SD大鼠72只,随机分为异氟醚处理组(I组)和对照组(C组),每组36只。I组大鼠异氟醚吸入及维持浓度为1.2%,维持麻醉3h,以大鼠翻正反射的消失和恢复视为麻醉的开始和结束;C组大鼠不吸入麻醉药。I组大鼠分别于麻醉后7和14d断头,C组大鼠直接断头,常规切取海马组织,制备厚500μm的海马脑片,进行LTP斜率和幅值的测定,Western blot法检测BDNF表达水平。结果与C组比较,异氟醚处理后7和14dI组LTP的斜率和幅值均明显下降(P<0.05)。与处理后7d比较,处理后14dI组LTP斜率和幅值均有明显升高(P<0.05)。与C组比较,处理后7和14dI组BDNF表达水平明显下降(P<0.05)。与处理后7d比较,处理后14dI组BDNF表达水平明显升高(P<0.05)。结论异氟醚麻醉后,老年大鼠学习记忆能力损害可能持续14d以上,LTP的改变可能参与POCD的发生机制,并且与BDNF表达水平的降低有关。

关键词：异氟醚长时程增强脑源性神经营养因子学习记忆

我国2010年《涉外民事关系法律适用法》中的属人法问题

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时代法学 2011年第4期9卷 101-107页

作者：黄栋梁湖南师范大学法学院湖南长沙410081

我国《涉外民事关系法律适用法》经过多年的立法探讨和准备,终于在2010年10月28日通过并同时予以公布。该法的通过对于我国法律体系的完善具有重要意义,然而在具体制度的设计方面仍有不少值得探讨的地方。在属人法的具体规定上,该法大... 详细信息

我国《涉外民事关系法律适用法》经过多年的立法探讨和准备,终于在2010年10月28日通过并同时予以公布。该法的通过对于我国法律体系的完善具有重要意义,然而在具体制度的设计方面仍有不少值得探讨的地方。在属人法的具体规定上,该法大量采用"经常居所"作为首要、甚至唯一连接点,而作为属人法传统连接点的"住所"竟在此法中毫无踪迹可寻,"国籍"也是作为补充连接点而采用的。我国国际私法立法的这种"创新"之举无疑给我们留下了很大的探讨空间。

关键词：属人法住所国籍惯常居所