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Characteristics of canopy interception and its simulation with a revised Gash model for a larch plantation in the Liupan Mountains, China

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Journal of Forestry Research 2018年第1期29卷 187-198页

作者： Zebin Liu yanhui wang Ao Tian Yu Liu Ashley A.Webb Yarui wang Haijun Zuo Pengtao Yu Wei Xiong Lihong Xu Institute of Forest Ecology Environment and ProtectionChinese Academy of Forestry Key Laboratory of Forestry Ecology and Environment of State Forestry Administration College of Soil and Water Conservation Beijing Forestry University NSW Department of Primary Industries Tamworth Agricultural Institute

Canopy interception is a significant proportion of incident rainfall and evapotranspiration of forest ecosystems. Hence, identifying its magnitude is vital for studies of eco-hydrological processes and hydrological impact evaluation. In this study, throughfall, stemflow and interception were measured in a pure Larix principis-rupprechtii Mayr.（larch） plantation in the Liupan Mountains of northwestern China during the growing season（May–October） of 2015, and simulated using a revised Gash model. During the study period, the total precipitation was 499.0 mm; corresponding total throughfall, stemflow and canopy interception were 410.3, 2.0 and 86.7 mm,accounting for 82.2, 0.4 and 17.4% of the total precipitation, respectively. With increasing rainfall, the canopy interception ratio of individual rainfall events decreased initially and then tended to stabilize. Within the study period, the simulated total canopy interception, throughfall and stemflow were 2.2 mm lower, 2.5 mm higher and 0.3 mm lower than their measured values, with a relative error of 2.5, 0.6 and 15.0%, respectively. As quantified by the model, canopy interception loss（79%） mainly consisted of interception caused by canopy adsorption, while the proportions of additional interception and trunk interception were small. The revised Gash model was highly sensitive to the parameter of canopy storage capacity,followed by the parameters of canopy density and mean rainfall intensity, but less sensitive to the parameters of mean evaporation rate, trunk storage capacity, and stemflow ratio. The revised Gash model satisfactorily simulated the total canopy interception of the larch plantation within the growing season but was less accurate for some individual rainfall events, indicating that some flaws exist in the model structure. Further measures to improve the model’s ability in simulating the interception of individual rainfall events were suggested.

关键词： Canopy interception Larch plantation Revised Gash model Stemflow Throughfall

M^(2)LC-Net: A Multi-Modal Multi-Disease Long-Tailed Classification Network for Real Clinical Scenes

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China Communications 2021年第9期18卷 210-220页

作者： Zhonghong Ou Wenjun Chai Lifei wang Ruru Zhang Jiawen He Meina Song Lifei Yuan Shengjuan Zhang yanhui wang Huan Li Xin Jia Rujian Huang Beijing University of Posts and Telecommunications Beijing 100876China Hebei Eye Hospital Xingtai 054001China

Leveraging deep learning-based techniques to classify diseases has attracted extensive research interest in recent ***,most of the current studies only consider single-modal medical images,and the number of ophthalmic diseases that can be classified is relatively ***,imbalanced data distribution of different ophthalmic diseases is not taken into consideration,which limits the application of deep learning techniques in realistic clinical *** this paper,we propose a Multimodal Multi-disease Long-tailed Classification Network(M^(2)LC-Net)in response to the challenges mentioned above.M^(2)LC-Net leverages ResNet18-CBAM to extract features from fundus images and Optical Coherence Tomography(OCT)images,respectively,and conduct feature fusion to classify 11 common ophthalmic ***,Class Activation Mapping(CAM)is employed to visualize each mode to improve interpretability of M^(2)*** conduct comprehensive experiments on realistic dataset collected from a Grade III Level A ophthalmology hospital in China,including 34,396 images of 11 disease *** results demonstrate effectiveness of our proposed model M^(2)*** with the stateof-the-art,various performance metrics have been improved ***,Cohen’s kappa coefficient κ has been improved by 3.21%,which is a remarkable improvement.

关键词： deep learning multi modal long-tail ophthalmic disease classification

THREE SOLUTIONS FOR A CLASS OF GRADIENT MIXED BOUNDARY VALUE SYSTEMS DEPENDING ON TWO PARAMETERS

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Annals of Applied Mathematics 2015年第4期31卷 411-422页

作者： Wei Li yanhui wang High School Affiliated to Southwest University

In this paper we discuss the existence of at least three solutions for a class of gradient mixed boundary value systems. The approach is fully based on a recent three critical points theorem of B. Ricceri [A three cri... 详细信息

关键词： mixed boundary value problem multiple solutions critical point

ILF2 cooperates with E2F1 to maintain mitochondrial homeostasis and promote small cell lung cancer progression

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Cancer Biology & Medicine 2019年第4期16卷 771-783页

作者： Meng Zhao Yahui Liu Jiao Chang Jin Qi Ran Liu Yongwang Hou yanhui wang Xinwei Zhang Lu Qiao Li Ren Tianjin 300060China Tianjin 300060China Department of Immunology Tianjin Key Laboratory of Cellular and Molecular ImmunologyKey Laboratory of Educational Ministry of ChinaSchool of Basic Medical SciencesTianjin Medical UniversityTianjin 300070China

Objective:Mitochondria play multifunctional roles in *** uncertainties of molecular interactions within mitochondria will promote further understanding of *** enhancer binding factor 2(ILF2)is upregulated in several malignancies,however,much remains unknown regarding ILF2 in small cell lung cancer(SCLC).In the current study,we explored ILF2's role in SCLC and demonstrated its importance in mitochondria quality ***:Colony formation,cell proliferation,cell viability and xenograft studies were performed to examine ILF2's role on SCLC *** uptake,lactate production,cellular oxygen consumption rate and extracellular acidification rate were measured to examine the effect of ILF2 on glucose ***-sequencing was utilized to explore genes regulated by ILF2.E2 F1 transcriptional activity was determined by dual luciferase reporter *** quantification and mitochondrial membrane potential assays were performed to examine mitochondrial *** expression was determined by RT-qPCR,Western blot and IHC ***:ILF2 promotes SCLC tumor growth in vitro and in ***2 elevates oxidative phosphorylation expression and declines glucose intake and lactate ***-wide analysis of ILF2 targets identified a cohort of genes regulated by E2 *** consistent with this,we found ILF2 interacts with E2 F1 in SCLC *** studies demonstrated that suppression of E2 F1 expression could reverse ILF2-induced tumor growth and enhanced mitochondria ***,expression of ILF2 is progressively increased during SCLC progression and high ILF2 expression is correlated with higher histologic grades,which indicates ILF2's oncogenic role in ***:Our results demonstrate that ILF2 interacts with E2 F1 to maintain mitochondria quality and confers SCLC cells growth advantage in tumorigenesis.

关键词： E2F1 OXPHOS mitochondria metabolism SCLC

Moral education in physical education teaching to explore

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International English Education Research 2014年第10期 3-5页

作者： wang KeBin Zhang yanhui Langfang health vocational college Langfang city in hebei province of China 065000

This article through to the current domestic sports teaching the moral education, based on the status of the moral education in physical education teaching for the outstanding characteristics are analyzed to put forward in the sports teaching the education of moral education for the optimization of the way, so as to solve the ＂sports teaching in moral education＂, and provide reference for your ideas.

关键词： Sports teaching Moral education status Outstanding characteristic way

Correction to:Modelling the response of larch growth to age,density,and elevation and the implications for multifunctional management in northwest China

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Journal of Forestry Research 2023年第6期34卷 2089-2090页

作者： Ao Tian yanhui wang Ashley A. Webb Pengtao Yu Xiao wang Zebin Liu Institute of Mountain Resource of Guizhou Province Guiyang 550001 People’s Republic of China Ecology and Nature Conservation Institute Key Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration Chinese Academy of Forestry Beijing 100091 People’s Republic of China WaterNSW Tamworth NSW Australia

In Table 3 of the published version,“Parameters fi tted for tree height and DBH growth models of Eq.(6)”,the parameters letter mismatched the corresponding ***,the authors regret that this may lead to mistakes in the tree height and DBH simulation based on the model Eq.(6).The correct Table 3 with exact parameter values is listed as follow.

关键词： larch northwest listed

A Series of Rare Earth Phenolates Substituted by Alkyl Groups for D,L-Lactide Ring-Opening Polymerization

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Journal of Wuhan University of Technology(Materials Science) 2011年第5期26卷 939-944页

作者：王艳张丽芳 Institute of Material Chemistry Shanxi Normal University

Single component rare earth phenolates substituted by various alkyl groups have been prepared and the correlation between the aryloxides＇ structure and catalytic activity in the ring-opening polymerization of D,L-lactide has also been *** catalytic activity of all rare earth aryloxides,characteristics of the ring-opening polymerization as well as polymerization kinetics and mechanism were *** results showed that both phenolates＇ catalytic activities and polymerization characteristics changed regularly,keeping in good concordance with variations in substitutents＇ number on phenol and structure of aryloxide *** stronger ability of electron-donation of alkyl groups,the higher catalytic ***,the more numbers of substituted alkyl on phenyl ring,the higher catalytic *** analyses of polymer ends revealed that the polymerization proceeded via a coordination-acyl-oxygen bond cleavage-insertion mechanism.

关键词： ring-opening polymerization D L-lactide rare earth phenolates

Estimate of NO_X production in the lightning channel based on three-dimensional lightning locating system

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Science China Earth Sciences 2014年第11期57卷 1613-1625页

作者： ZHANG Rong ZHANG GuangShu LI YaJun wang yanhui WU Bin YU Hai LIU YanXiu Key laboratory of Land Surface Process and Climate Change in Cold and Arid Regions Cold and Arid Regions Environmental and Engineering Research InstituteChinese Academy of Sciences College of Earth Science University of Chinese Academy of Sciences

Based on the VHF lightning locating system,a three-dimensional-space cell-gridded approach is used to extract the lighting channel and calculate the length of the *** clustering of the located radiation sources and then extracting the lightning channel,it can accurately obtain the length of the *** validate the feasibility of the approach,a simulation experiment is designed,and it shows the length error is no more than 10%.The relationship between the NO production of per unit arc length and atmospheric pressure obtained in laboratory is applied to the NOX production of per unit flash length at different altitudes in this *** channel length and the NOX production of 11 negative cloud-to-ground flashes and 59 intracloud flashes in an isolated thunderstorm in the northeastern Qinghai-Tibet Plateau are *** results show that the average channel lengths of per cloud-to-ground and intracloud flash are 28.9 and 22.3 km respectively;the average NOX productions of per cloud-to-ground and intracloud flash are 1.89×1025 and 0.42×1025 molecules,respectively.

关键词： lightning-produced nitrogen oxides lightning channel VHF radiation source location cell-gridded

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深厚土层高压段压缩模量预测研究

铁道工程学报 2021年第2期38卷 41-46页

作者：王衍汇中国铁路设计集团有限公司天津300251

研究目的:随着高速铁路运营速度的提高,其对线路平顺性的要求也越来越严格,尤其对地基变形达到了"毫米级"的控制,因此对地基沉降的精确计算提出了更高的技术要求,而压缩模量的选用在计算中起着重要作用。压缩模量一般通过室内固结试验获... 详细信息

研究目的:随着高速铁路运营速度的提高,其对线路平顺性的要求也越来越严格,尤其对地基变形达到了"毫米级"的控制,因此对地基沉降的精确计算提出了更高的技术要求,而压缩模量的选用在计算中起着重要作用。压缩模量一般通过室内固结试验获得,但需对土样进行连续观测,耗时久、效率低,因此本文以包银高铁包头段湖冲积地层为研究对象,运用Allometric函数来合理表示压缩曲线,建立以基本物理指标为基础,以标准压缩模量为核心,推求高压力段压缩模量的方法。研究结论:(1)Allometric函数物理意义明确,可以较好地拟合土体e-lgP曲线,拟合度在0.99以上;(2)基于常规土工参数E_(s1-2)、w(L_)和e_(0)获得的Allometric函数具有较高的可信性,通过与试验数据的比较,表现出0~100 k Pa低压力段误差较大、100~800 kPa的常压力段与800~1600 kPa的高压力段误差较小的特征;(3)高压段压缩模量预测方法的主要误差来源于经验公式C_(c)=0.037(e_(0)+0.003w(L_)-0.34),但只要针对不同地区土层特性建立土体物理指标与力学参数关系,就可以保证其较高的适用性;(4)本研究成果可应用于高铁勘察中深厚土层高压段压缩模量的预测和校核。

关键词：压缩模量深厚土层包银高铁 Allometric函数