Results 31 to 40 of about 10,914,303 (330)

Population Density and Driving Factors of North China Leopards in Tie Qiao Shan Nature Reserve

open access: yesAnimals, 2021
The North China leopard (Panthera pardus japonesis) is a rare leopard subspecies distributed only in China. In this study, we conducted camera-trap surveys of a North China Leopard population in Tie Qiao Shan Nature Reserve, Shanxi Province, China.
Mengyan Zhu   +5 more
doaj   +1 more source

Prevalence of thyroid disorders and associated risk factors with various glycemic status in North China

open access: yesBiotechnology & Biotechnological Equipment, 2019
The aim of this cross-sectional study was to investigate whether abnormal glycemic status (diabetes and prediabetes) is associated with increased prevalence of thyroid disorders in North China.
Wenhua Du   +6 more
doaj   +1 more source

The known unknown land. The history of study of north China in the XIXth century

open access: yesMiscellanea Geographica: Regional Studies on Development, 2019
This article is devoted to the history of Russian hypsometric and geographic investigations of the northern part of China, Mongolia, Manchuria, the Amur and the Ussuri region in the 19th century.
Feklova Tatiana Yurievna
doaj   +1 more source

InVEST Model-Based Estimation of Water Yield in North China and Its Sensitivities to Climate Variables

open access: yes, 2020
A revegetation program in North China could potentially increase carbon sequestration and mitigate climate change. However, the responses of water yield ecosystem services to climate factors are still unclear among different vegetation types, which is ...
Guo-Dong Yin   +5 more
semanticscholar   +1 more source

首都圈及其邻区的电性莫霍面探测

open access: yesDizhen xuebao
为了解首都圈地区电性莫霍面(eMoho)的分布情况,使用该地区电磁台网部分台站的长周期大地电磁数据,反演得到了首都圈地区的深部电性结构,该结果与前人使用地震、电磁、重力等资料得到的研究区地下结构具有较好的一致性,同时表明首都圈地区的地震学莫霍面附近也存在着电阻率变化特征。在此基础上,对反演所得的电阻率曲线求取一阶导数,以此来刻画测点下方电性莫霍面的深度位置,继而建立三类地层模型验证了该方法的可行性,并对实测资料反演结果求取一阶导数,结果凸显了电性莫霍面的分布,所得电性莫霍面与地震 ...
Kexin Zhu, Xingong Tang, Junhu Yu
doaj   +1 more source

The epidemiology of paediatric Mycoplasma pneumoniae pneumonia in North China: 2006 to 2016

open access: yesEpidemiology and Infection, 2019
Paediatric Mycoplasma pneumoniae pneumonia (MPP) is a major cause of community-acquired pneumonia in China. Data on epidemiology of paediatric MPP from China are little known.
Liwei Gao   +9 more
semanticscholar   +1 more source

Relationship Between Summer Precipitation in North China and Madden–Julian Oscillation During the Boreal Summer of 2018

open access: yesFrontiers in Earth Science, 2020
Based on the data regarding summer precipitation in North China, the tropical Madden–Julian Oscillation (MJO) index (meaning the “All-Season Real-Time Multivariate MJO index,” abbreviated as RMM1 and RMM2), and National Centers for Environmental ...
Lisheng Hao   +4 more
doaj   +1 more source

North China Plain threatened by deadly heatwaves due to climate change and irrigation

open access: yesNature Communications, 2018
North China Plain is the heartland of modern China. This fertile plain has experienced vast expansion of irrigated agriculture which cools surface temperature and moistens surface air, but boosts integrated measures of temperature and humidity, and hence
Suchul Kang, E. Eltahir
semanticscholar   +1 more source

Septin 9 PB domains coordinate centrosome positioning and microtubule acetylation to control epithelial polarity

open access: yesFEBS Letters, EarlyView.
Septin 9 polybasic domains couple phosphoinositide‐rich membrane binding to centrosome positioning, Golgi organization, and microtubule acetylation to control epithelial polarity. Their loss disrupts this axis, causing centrosome mispositioning, Golgi fragmentation, reduced microtubule acetylation, and polarity inversion via upregulation of the ...
Ting ting Cai   +4 more
wiley   +1 more source

基于地震活动图像的机器学习地震预测方法及其在华北地区的应用

open access: yesDizhen xuebao
本文开展了基于地震活动图像预测华北地区地震的机器学习方法研究。根据华北地区M≥5.0中强震、强震及大震的地震平均时间间隔,采用1970年以来华北地区M≥5.0中强震、强震及大震震前大量不同时窗长的ML≥3.0地震活动图像作为输入数据集,提出了基于地震活动图像预测地震的机器学习方法,并进行了震例回溯。利用本文提出的方法选取“未拓展图像数据集”和“含拓展图像数据集”对华北地区发生中强地震进行预测对比,结果显示,数据集样本量的增加有利于提高地震预测模型的精度,其中“含拓展图像数据集”预测地震的准确率可达77%;
Xiaofei Yin   +4 more
doaj   +1 more source

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