Results 21 to 30 of about 1,859,490 (310)

Early countermeasures to COVID-19 at long-term care facilities in Gwangju Metropolitan City, Republic of Korea [PDF]

open access: yesOsong Public Health and Research Perspectives, 2023
Objectives The coronavirus disease 2019 (COVID-19) pandemic has continued since its first detection in the Republic of Korea on January 20, 2020. This study describes the early countermeasures used to minimize the risk of COVID-19 outbreaks during cohort
Hye-Jin Kim   +9 more
doaj   +1 more source

Voltage Multistability and Pulse Emergency Control for Distribution System with Power Flow Reversal [PDF]

open access: yes, 2015
High levels of penetration of distributed generation and aggressive reactive power compensation may result in the reversal of power flows in future distribution grids.
Nguyen, Hung D., Turitsyn, Konstantin
core   +2 more sources

Coordinated Control Strategy for Multi Micro Energy Systems Within Distribution Grid Considering Dynamic Characteristics and Contradictory Interests

open access: yesIEEE Access, 2019
As a typical form of integrated energy system, micro energy system (MES) is promoted and popularized at the terminal of distribution grid. To achieve the efficient and reliable energy utilization of MES, two main problems need to be solved: how to ...
Qi Wang   +4 more
doaj   +1 more source

Coordinative Optimization of Emergency Control Based on Constraint Consensus and Differential Evolution in Multi-DC Infeed Power Grid

open access: yesZhongguo dianli, 2023
The multi-direct current (DC) infeed power grid faces the risk of system instability after the DC blocking fault. Coordinating multiple emergency control resources can ensure system stability and control economy.
Jun ZHUANG   +5 more
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

Emerging or re-emerging bacterial zoonoses: factors of emergence, surveillance and control [PDF]

open access: yesVeterinary Research, 2005
Surveillance and control of emerging bacterial zoonoses is essential in order to prevent both human and animal deaths and to avoid potential economic disorders created by trade barriers or a ban on free circulation of human or animal populations. An increased risk of exposition to zoonotic agents, the breakdown of the host's defenses, the emergence of ...
Blancou, Jean   +3 more
openaire   +2 more sources

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

Recloser-Based Decentralized Control of the Grid with Distributed Generation in the Lahsh District of the Rasht Grid in Tajikistan, Central Asia

open access: yesEnergies, 2020
Small-scale power generation based on renewable energy sources is gaining popularity in distribution grids, creating new challenges for power system control.
Anvari Ghulomzoda   +7 more
doaj   +1 more source

Review on Power System Transient Stability Control Technologies Based on Wide-Area Measurement Information

open access: yes发电技术, 2018
Power system transient stability control based on response is one of the main applications of wide-area measurement system (WAMS). WAMS that can obtain real-time dynamic response data of the whole power grid, provides a strong technical support to the ...
Dan HUANG, Shuyong CHEN, Wei WANG
doaj   +1 more source

Application of Message Compliance Detection and Intrusion Blocking Technology in Remote Operation and Maintenance System of Relay Protection

open access: yesZhongguo dianli
In the remote operation and maintenance of relay protection, there are network intrusion risks at every stage of data transmission. Existing security measures have not effectively addressed business layer risks, and some issues such as delayed risk ...
Jiang YU   +6 more
doaj   +1 more source

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