Results 11 to 20 of about 645,061 (269)

Coronavirus Disease-19: Quarantine Framework for Travelers Entering Korea [PDF]

open access: yesOsong Public Health and Research Perspectives, 2020
South Korea is operating a flexible quarantine management system which is based on the results of epidemiological investigations of patients arriving from overseas with coronavirus disease-19 (COVID-19), and closely monitoring COVID-19 outbreaks.
Quarantine Management Team, COVID-19 National Emergency Response Center
doaj   +1 more source

Coronavirus Disease-19: Summary of 2,370 Contact Investigations of the First 30 Cases in the Republic of Korea [PDF]

open access: yesOsong Public Health and Research Perspectives, 2020
Between January 24th and March 10th, a total of 2,370 individuals had contact with the first 30 cases of COVID-19. There were 13 individuals who contracted COVID-19 resulting in a secondary attack rate of 0.55% (95% CI 0.31–0.96).
COVID-19 National Emergency Response Center, Epidemiology and Case Management Team   +1 more
doaj   +1 more source

Coronavirus Disease-19: The First 7,755 Cases in the Republic of Korea [PDF]

open access: yesOsong Public Health and Research Perspectives, 2020
We report the first 7,755 patients with confirmed COVID-19 in Korea as of March 12th, 2020. A total of 66 deaths have been recorded, giving a case fatality proportion of 0.9%.
COVID-19 National Emergency Response Center, Epidemiology and Case Management Team   +1 more
doaj   +1 more source

NESEA-Rice10: high-resolution annual paddy rice maps for Northeast and Southeast Asia from 2017 to 2019 [PDF]

open access: yesEarth System Science Data, 2021
An accurate paddy rice map is crucial for ensuring food security, particularly for Southeast and Northeast Asia. MODIS satellite data are useful for mapping paddy rice at continental scales but have a mixed-pixel problem caused by the coarse spatial ...
J. Han   +9 more
doaj   +1 more source

Study on O3 Variations in Nanjing and the Surrounding Source Analysis

open access: yesAdvances in Meteorology, 2023
To understand the transport patterns and major sources of ozone (O3) in Nanjing, this study carried out the 48-hour backward trajectories of air masses in Nanjing from March 2021 to March 2022, based on the HYSPLIT backward trajectory model driven by ...
Jiaqi Shi   +4 more
doaj   +1 more source

Developing High-Resolution Crop Maps for Major Crops in the European Union Based on Transductive Transfer Learning and Limited Ground Data

open access: yesRemote Sensing, 2022
Precise and timely information on crop spatial distribution over large areas is paramount to agricultural monitoring, food security, and policy development.
Yuchuan Luo   +5 more
doaj   +1 more source

Management of hypertensive emergencies [PDF]

open access: yesPediatric Nephrology, 1992
Between 1975 and 1985, 454 patients with hypertension were admitted to the Renal Unit of the Hospital for Sick Children. A total of 110 (24%) patients presented with severely raised blood pressures deemed to require emergency management. At presentation 84/110 had symptoms and signs of long standing hypertension with neurological involvement.
J E, Deal, T M, Barratt, M J, Dillon
openaire   +2 more sources

A Study on the Factors Influencing Coal Fracturing Range Caused by Liquid Carbon Dioxide Phase Transition

open access: yesGeofluids, 2022
Liquid carbon dioxide phase transition fracturing technology (LCPTF) is an effective method to increase coal seam permeability, but there are many factors that affect the fracturing effect.
Xinyu Hu   +6 more
doaj   +1 more source

Mapping rapeseed planting areas using an automatic phenology- and pixel-based algorithm (APPA) in Google Earth Engine

open access: yesCrop Journal, 2022
The timely and rapid mapping of rapeseed planting areas is desirable for national food security. Most current rapeseed mapping methods depend strongly on images with good observations obtained during the flowering stages. Although vegetation indices have
Jichong Han   +3 more
doaj   +1 more source

Investigation on the Properties of Flame-Retardant Phase Change Material and Its Application in Battery Thermal Management

open access: yesEnergies, 2023
The thermal safety problem of lithium-ion batteries (LIB) in use requires an excellent thermal management system to preserve it. In the paper, an expansion flame-retardant composed of APP and CFA and kaolinite is used to enhance the flame-retardant ...
Yilin Cui   +6 more
doaj   +1 more source

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