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Differences and similarities in radial growth of Betula species to climate change

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Journal of Forestry Research 2024年第2期35卷 176-187页

作者： Di Liu Yang An zhao Li Zhihui Wang yinghui zhao Xiaochun Wang Center for Ecological Research Key Laboratory of Sustainable Forest Ecosystem ManagementMinistry of EducationCollege of ForestryNortheast Forestry UniversityHarbin 150040People’s Republic of China Changan Park in Shijiazhuang Shijiazhuang 050000People’s Republic of China Shijiazhuang Landscape Greening Engineering Project Construction Center Shijiazhuang 050000People’s Republic of China Heilongjiang Institute of Meteorological Science Harbin 150030People’s Republic of China School of Life Qufu Normal UniversityQufu 273100People’s Republic of China

Betula platyphylla and Betula costata are important species in mixed broadleaved-Korean pine(Pinus koraiensis)***,the specific ways in which their growth is affected by warm temperatures and drought remain *** address this issue,60 and 62 tree-ring cores of *** and *** were collected in Yichun,*** dendrochronological methods,the response and adaptation of these species to climate change were examined.A“hysteresis effect”was found in the rings of both species,linked to May–September moisture conditions of the previous *** growth of *** was positively correlated with the standardized precipitation-evapotranspiration index(SPEI),the precipitation from September to October of the previous year,and the relative humidity in October of the previous *** of *** is primarily restricted by moisture conditions from September to *** contrast,*** growth is mainly limited by minimum temperatures in May–June of both the previous and current *** droughts,*** had a faster recovery rate compared to *** the context of rising temperatures since 1980,the correlation between *** growth and monthly SPEI became positive and strengthened over time,while the growth of *** showed no conspicuous *** findings suggest that the growth of *** is already affected by warming temperatures,whereas *** may become limited if warming continues or *** change could disrupt the succession of these species,possibly accelerating the succession of pioneer *** results of this research are of great significance for understanding how the growth changes of birch species under warming and drying conditions,and contribute to understanding the structural adaptation of mixed broadleaved-Korean pine(Pinus koraiensis)forests under climate change.

关键词： Tree rings Betula platyphylla Betula costata Climate response Moving correlation Extreme drought

Individual-tree diameter growth model for Korean pine plantations based on optimized interpolation of meteorological variables

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Journal of Forestry Research 2021年第4期32卷 1535-1552页

作者： Man Wang yinghui zhao Zhen Zhen Xingji Jin School of Forestry Northeast Forestry UniversityHarbin 150040HeilongjiangPeople’s Republic of China Key Laboratory of Sustainable Forest Ecosystem Management-Ministry of Education Northeast Forestry UniversityHarbin 150040HeilongjiangPeople’s Republic of China

To explore the influence of meteorological variables on the growth of Korean pine(Pinus koraiensis *** Zucc.) plantations and provide a scientific reference for the production and management of Korean pine,three approaches to interpolate meteorological variables during the growing season(i.e.,May-September) were compared in Heilongjiang Province,*** meteorological variable interpolation results were then combined with stand and individual tree variables,based on data from 56 sample plots and 2886 sample trees from Korean pine plantations in two regions of the province to develop an individualtree diameter growth model(Model I) and an individualtree diameter growth model with meteorological variables(Model Ⅱ) using a stepwise regression ***,an individual-tree diameter growth model with regional effects(Model Ⅲ) was developed using dummy variables in the regression,and the significance of introducing these dummy variables was verified with an F-test statistical *** models were validated using an independent data set,and the predictive performance of the three models was assessed via the adjusted coefficient of determination(R_(a)^(2)) and root mean square error(RMSE).The results suggest that the growth increment in tree diameter of Korean pine plantations was significantly correlated with the natural logarithm of initial diameter(ln D),stand basal area(BAS),logarithmic deformation of the stand density index(ln SDI),ratio of basal area of trees larger than the subject tree to their initial diameter at breast height(DBH)(BAL/D),and the maximum growingseason precipitation(Pgmax).The individual-tree diameter growth models of Korean pine plantations developed in this study will provide a good basis for estimating and predicting growth increments of Korean pine forests over larger areas.

关键词： Mixed interpolation Korean pine plantations Individual-tree diameter growth model Regional effects

SIFT-based automatic tie-points extraction for airborne InSAR images

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High Technology Letters 2019年第2期25卷 160-165页

作者： Dong Xiaotong Han Chunming Yue Xijuan zhao yinghui Institute of Remote Sensing and Digital Earth Chinese Academy of SciencesBeijing 100094P. R.China Department of Airbone Remote Sensing Sanya Institute of Remote SensingSanya 572029P.R.China University of Chinese Academy of Sciences Beijing 100049P.R.China

The scale-invariant feature transform (SIFT) is often applied to extract tie-points for airborne SAR images. When a pair of airborne SAR images differs with look angles obviously, shadow sizes and shapes of same objects will differ obviously. In main and slave SAR images, key-points around shadows often match as tie-points, although they are not homologous points. The phenomenon worsens the performance of SIFT on SAR images. On the basis of SIFT, a modified matching method is proposed to decrease the number of incorrect tie-points. High-resolution airborne SAR images are used in Experiments. Experiment results show that the proposed method is very effective to extract correct tie-points for SAR images.

关键词： scale-invariant feature transform(SIFT) airborne InSAR images tie-points extraction image coregistration

Aerodynamic performances and vehicle dynamic response of high-speed trains passing each other

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Journal of Modern Transportation 2012年第1期20卷 36-43页

作者： yinghui zhao Jiye ZHANG Tian LI Weihua ZHANG Traction Power State Key Laboratory Southwest Jiaotong UniversityChengdu 610031China

Based on the aerodynamics and vehicle dynamics, the aerodynamic performances and vehicle dynamic characteristics of two high-speed trains passing each other on the ground, embankment and bridge are studied. Firstly, a train aerodynamic model and a vehicle dynamic model are established. Through the simulation of the two models, the pressure waves, aerodynamic forces, and vehicle dynamic responses are obtained. Then, the pressure waves and aero- dynamic forces on different foundations are compared. The results show that the variation trends of pressure wave and aerodynamic forces of trains passing each other on different foundations are almost similar. The peak-to-peak differ- ences in pressure wave and aerodynamic force are below 4% and 3% in three cases in open air. Besides, the differences of security indexes, including coefficient of derailment, wheel unloading rate, the wheelset lateral force, and the wheel- rail vertical force, are below 2% among the three cases; the differences of comfort indexes, including the lateral acceleration and the vertical acceleration, are also below 2%. It is concluded that the dynamic performances of trains pass- ing each other are influenced little by different foundations in open air.

关键词： trains passing each other foundations pressure wave aerodynamics vehicle dynamics

DNA methylation drives a new path in gastric cancer early detection:Current impact and prospects

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Genes & Diseases 2024年第2期11卷 847-860页

作者： Xinhui Wang Yaqi Dong Hong Zhang yinghui zhao Tianshu Miao Ghazal Mohseni Lutao Du Chuanxin Wang Department of Clinical Laboratory The Second Hospital of Shandong UniversityJinanShandong 250033China Department of Clinical Laboratory Fuling HospitalChongqing UniversityChongqing 402774China Suzhou Research Institute of Shandong University SuzhouJiangsu 215123China Department of Biochemistry and Molecular Biology Shandong University School of Basic Medical SciencesJinanShandong 250012China Shandong Engineering & Technology Research Center for Tumor Marker Detection JinanShandong 250033China Shandong Provincial Clinical Medicine Research Center for Clinical Laboratory JinanShandong 250033China

Gastric cancer(GC)is one of the most common and deadly cancers *** detection offers the best chance for curative treatment and reducing its ***,the optimal population-based early screening for GC remains *** DNA methylation occurs in the early stage of GC,exhibiting cancer-specific genetic and epigenetic changes,and can be detected in the media such as blood,gastric juice,and feces,constituting a valuable biomarker for cancer early ***,DNA methylation is a stable epigenetic alteration,and many innovative methods have been developed to quantify it rapidly and ***,large-scale clinical validation of DNA methylation serving as tumor biomarkers is still lacking,precluding their implementation in clinical *** conclusion,after a critical analysis of the recent existing literature,we summarized the evolving roles of DNA methylation during GC occurrence,expounded the newly discovered noninvasive DNA methylation biomarkers for early detection of GC,and discussed its challenges and prospects in clinical applications.

关键词： Biomarkers DNA methylation Early detection Gastric cancer Translation

Automatic marker-free registration of single tree point-cloud data based on rotating projection

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Artificial Intelligence in Agriculture 2022年第1期6卷 176-188页

作者： Xiuxian Xu Pei Wang Xiaozheng Gan Jingqian Sun Yaxin Li Li Zhang Qing Zhang Mei Zhou yinghui zhao Xinwei Li School of Science Beijing Forestry UniversityBeijing 100083China Key Laboratory of Quantitative Remote Sensing Information Technology Academy of Opto-ElectronicsBeijing 100094China Aerospace Information Research Institute Chinese Academy of SciencesBeijing 100094China

Point-cloud data acquired using a terrestrial laser scanner play an important role in digital forestry *** scans are generally used to overcome occlusion effects and obtain complete tree structural ***,the placement of artificial reflectors in a forest with complex terrain for marker-based registration is time-consuming and *** this study,an automatic coarse-to-fine method for the registration of pointcloud data from multiple scans of a single tree was *** coarse registration,point clouds produced by each scan are projected onto a spherical surface to generate a series of two-dimensional(2D)images,which are used to estimate the initial positions of multiple *** feature-point pairs are then extracted from these series of 2D *** fine registration,point-cloud data slicing and fitting methods are used to extract corresponding central stem and branch centers for use as tie points to calculate fine transformation *** evaluate the accuracy of registration results,we propose a model of error evaluation via calculating the distances between center points from corresponding branches in adjacent *** accurate evaluation,we conducted experiments on two simulated trees and six real-world *** registration errors of the proposed method were 0.026 m around on simulated tree point clouds,and 0.049 m around on real-world tree point clouds.

关键词： Coarse registration Feature-point matching Fine registration Multi-station tree point cloud Point-cloud registration

从摹仿到自指涉--布莱希特、巴特、雷曼论戏剧的“外”化

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文艺理论研究 2023年第2期43卷 98-107页

作者：赵英晖复旦大学外文学院 200433

布莱希特、巴特和雷曼论著中“外”的含义反映出他们对戏剧能指独立性不同程度的重视,为我们勾勒出摹仿型戏剧与自指涉型戏剧的关联:布莱希特提倡“外”化表演,认为演员扮演人物时不必与人物感受相同,这无异于肯定能指(剧中元素或曰摹仿... 详细信息

布莱希特、巴特和雷曼论著中“外”的含义反映出他们对戏剧能指独立性不同程度的重视,为我们勾勒出摹仿型戏剧与自指涉型戏剧的关联:布莱希特提倡“外”化表演,认为演员扮演人物时不必与人物感受相同,这无异于肯定能指(剧中元素或曰摹仿者)与所指(原物或曰被摹仿者)的差距,但他念念不忘“科学时代的戏剧”之“真”,企图用“外”化表演实现能指与所指真正的相似;巴特的戏剧研究中,能指与所指的距离被进一步拉大,巴特主张戏剧以夸张的“外”化取缔一切深度、以外在语言调动观众的全面综合感知,他将深度和内在视作西方根深蒂固的二元对立思维中那个隐匿、强大却不过是虚构的支配者;雷曼认为当代戏剧最重要的特征是能指摆脱所指而实现自指涉,能指不是对所指的摹仿,而是其自身真实的在场,这一转变使戏剧的外交流系统格外突出,观众成为戏剧的参与者而非旁观者,对戏剧的接受方式不是概念认知和阐释,而是知觉经验。

关键词：摹仿自指涉 “外” 能指所指

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科尔代斯戏剧独白的跨体裁性

外国文学研究 2019年第3期41卷 108-116页

作者：赵英晖南京大学外国语学院法语系复旦大学外文学院法语系

独白历来被认为是戏剧中不那么"戏剧性"的因素,科尔代斯却对这种边缘的戏剧话语形式情有独钟,在剧作中大量使用独白,并创造性地发展了独白的戏剧性、叙事性、抒情性。戏剧的与非戏剧的文学体裁属性在科尔代斯的戏剧独白中交织、碰撞,改... 详细信息

独白历来被认为是戏剧中不那么"戏剧性"的因素,科尔代斯却对这种边缘的戏剧话语形式情有独钟,在剧作中大量使用独白,并创造性地发展了独白的戏剧性、叙事性、抒情性。戏剧的与非戏剧的文学体裁属性在科尔代斯的戏剧独白中交织、碰撞,改变了戏剧冲突的方式、戏剧展示的方式和戏剧人物的存在方式,戏剧因而成为了包容异质因素又不乏统一性的现代"行吟诗",具有跨体裁的无限可能性的独白蕴含着戏剧突破自身旧有框架而实现自我解放的可能性。

关键词：独白戏剧性叙事性抒情性

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论科研诚信管理法治的建构

法学论坛 2024年第6期39卷 153-160页

作者：赵迎辉中共山东省委党校(山东行政学院)政治和法律教研部山东济南250004

将科研诚信管理纳入法治化轨道,建立健全管理体制和相关机制,是解决学术不端问题、推动社会信用建设的治本之策。近年来,我国中央和地方层面出台了一系列科研诚信政策法规,科研诚信管理制度化、法治化程度不断提高。但从整体来看,我国... 详细信息

将科研诚信管理纳入法治化轨道,建立健全管理体制和相关机制,是解决学术不端问题、推动社会信用建设的治本之策。近年来,我国中央和地方层面出台了一系列科研诚信政策法规,科研诚信管理制度化、法治化程度不断提高。但从整体来看,我国科研诚信管理仍然面临基本概念存在歧义、政策法规不够统一、责任体系尚不健全、调查处理机制有待完善等问题和短板。需要出台一部国家法律层面或者行政法规层面的专门立法,厘清基本概念、健全责任体系、细化调查规则、建立负责任的科研行为培育机制,形成多主体多层次依法治理科研诚信的新格局。

关键词：科研诚信科研不端管理制度机制