Results 11 to 20 of about 10,914,303 (330)

Characteristics of spatio-temporal distribution of frost/snow disasters in North China during 1644–1911

open access: yesGeomatics, Natural Hazards & Risk, 2022
This paper presents an analysis based on the use of historical data of frost/snow disasters in North China in combination with ArcGIS and other technical applications.
Shuoben Bi   +5 more
doaj   +1 more source

华北地区重力场变化特征与孕震模型研究

open access: yesDizhen xuebao, 2021
本文采用基于贝叶斯原理的重力平差方法对华北地区2009—2017年的16期陆地流动重力观测资料进行了统一处理,结合研究区内2009年以来4次M≥4.5 地震活动,分析区域重力场动态演化特征。基于华北地区均衡重力异常、布格重力异常、沉积层重力异常和莫霍面重力异常,研究华北地区三维密度结构特征,分析区域重力场变化与深部密度结构之间的关系。结果表明:研究区内近年来M≥4.5地震均位于区域差分重力场和累积重力场“零值”等值线附近、异常变化剧烈的梯度带及梯度带转弯部位 ...
Weimin Xu, Lei Shi, Shi Chen, Hongyan Lu
doaj   +1 more source

Sustainable intensification of millet–pig agriculture in Neolithic North China

open access: yesNature Sustainability, 2022
The emergence of complex societies represents one of the major developments of human prehistory. Diverse agricultural strategies were implemented to produce the increased grain surplus necessary to allow the development of complex societies across the ...
Ji-Shuai Yang   +15 more
semanticscholar   +1 more source

Childhood Narcolepsy in North China [PDF]

open access: yesSleep, 2001
The purpose is to report the results of an effort to diagnose children with narcolepsy in a pediatric referral clinic.Between September 1998 and December 1999, a program was implemented to emphasize recognition of childhood narcolepsy. Patients underwent brain computed tomography (CT) scan and magnetic resonance imaging (MRI) testing.
F, Han   +6 more
openaire   +2 more sources

High-precision U-Pb age constraints on the Permian floral turnovers, paleoclimate change, and tectonics of the North China block

open access: yesGeology, 2021
The Permian marine-terrestrial system of the North China block provides an exceptional window into the evolution of northern temperate ecosystems during the critical transition from icehouse to greenhouse following the late Paleozoic ice age (LPIA ...
Qiong Wu   +13 more
semanticscholar   +1 more source

Wise House 218 North: Attic

open access: yes, 1992
The Wise Alumni House, also known as Wise House, is a university-owned building located off-campus on Market Street in Wilmington, NC. Mrs. Jessie Kenan Wise owned the home. Her sister and brother-in-law--Mrs. Sarah Graham Kenan and Mr.
University of North Carolina, Wilmington
core   +5 more sources

Clinical Characteristics of Coronavirus Disease 2019 in China

open access: yesJournal of Emergency Medicine, 2020
The novel coronavirus (SARS-CoV-2, causing COVID-19) was originally isolated in Wuhan, China. This virus spread quickly throughout many countries in Asia and now Europe, Australia, North America, leading the World Health Organization to declare COVID-19 ...
C. Eastin, T. Eastin
semanticscholar   +1 more source

Impact of aerosols on terrestrial gross primary productivity in North China using an improved boreal ecosystem productivity simulator with satellite-based aerosol optical depth

open access: yesGIScience & Remote Sensing, 2020
Atmospheric aerosols can alter the direct and diffuse components of global solar radiation, which further influences terrestrial gross primary productivity (GPP) via photosynthesis.
Yao Feng, Dongmei Chen, Xinyi Zhao
doaj   +1 more source

THE PLAGUE IN NORTH CHINA [PDF]

open access: yesJournal of the American Medical Association, 1911
ABSTRACT The plague is very properly divided into three types: the bubonic, or that from affecting the lymphatic system which is usually the most common type; the septicemic, or that affecting the blood-system; and the pneumonic type, or that affecting the lungs more especially.
openaire   +2 more sources

Relationship between Summer Precipitation Anomaly in North China and Precipitation Anomaly in the Pre-Flood Season in South China

open access: yesGaoyuan qixiang, 2023
To improve the prediction ability for summer precipitation anomalies in North China and determine the indicators of early abnormal signals, this paper uses the summer precipitation data in North and South China from 1961 to 2020, and the reanalysis ...
Lisheng HAO, Yihui DING
doaj   +1 more source

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