Results 41 to 50 of about 11,901,817 (244)

A Frequency Control Approach for Hybrid Power System Using Multi-Objective Optimization

open access: yesEnergies, 2017
A hybrid power system uses many wind turbine generators (WTG) and solar photovoltaics (PV) in isolated small areas. However, the output power of these renewable sources is not constant and can diverge quickly, which has a serious effect on system ...
Mohammed Elsayed Lotfy   +4 more
doaj   +1 more source

Safety and Effectiveness of a High‐Dose, Tailored Tissue Plasminogen Activator Therapy Protocol: A Joint Pediatric Hematology and Cardiac ICU Quality Improvement Initiative Analysis

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Pediatric thromboembolism is increasingly encountered in critical care. Systemic thrombolysis with tissue plasminogen activator (tPA) facilitates vessel or valve patency, yet pediatric‐specific protocols remain undefined, and safety concerns persist. Objective To evaluate the efficacy and safety of a tailored, prolonged systemic tPA
Eran Shostak   +5 more
wiley   +1 more source

High Proton Conductivity in xCuO/(1‐x)CeO2 Electrolytes Induced by CuO Self‐Nucleation and Electron‐Ion Coupling

open access: yesAdvanced Science
Operating within the 300–500 °C range, low‐temperature solid oxide fuel cells (LT‐SOFCs) enable efficient and sustainable energy conversion, addressing the limitations of conventional high‐temperature SOFCs.
Muhammad Shahid Sharif   +8 more
doaj   +1 more source

All-dielectric coding metasurface designs for spin-selective beam shaping and multichannel optical vortex beam manipulation

open access: yesResults in Physics
Enhancing the information-carrying capacity of incident light using multifunctional metasurfaces have attracted considerable interests due to its promising applications in high-secure information encryption and communication. Incorporating spin-dependent
Naeem Ullah   +7 more
doaj   +1 more source

High-Performance Robust Controller Design of Plug-In Hybrid Electric Vehicle for Frequency Regulation of Smart Grid Using Linear Matrix Inequality Approach

open access: yesIEEE Access, 2019
This paper proposes a high-performance and robust linear quadratic regulator-proportional integral derivative (LQR-PID) controller for frequency regulation in a two-area interconnected smart grid with a population of plug-in hybrid electric vehicles ...
Sajal Kumar Das   +5 more
doaj   +1 more source

Distributed secondary optimal control for self‐maintaining microgrids on pelagic islands

open access: yesIET Renewable Power Generation, 2023
Considering the geographic distance, self‐maintaining microgrids are widely built to supply power on pelagic islands, where developing distributed autonomous control strategies while guaranteeing microgrids’ resilience and energy security have gained ...
Sicheng Deng   +4 more
doaj   +1 more source

Global Efforts to Reduce Paediatric Cancer Care Disparities in Radiotherapy: A Decade Change

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background We present an update on the status, needs and challenges faced by paediatric imaging and radiotherapy (RT) programmes globally after a previous survey conducted by the International Atomic Energy Agency (IAEA) 10 years prior. Methods We developed and distributed a 121‐question survey to radiation oncologists, medical physicists and ...
Raymond B. Mailhot Vega   +10 more
wiley   +1 more source

Control of electric drives with high switching frequency operation capabilities: envisionning future prospects [PDF]

open access: yes
Industrial drives are currently of great relevance considering the technological challenges associated with climate change mitigation. Current technologies use silicon devices with switching frequencies around 10 kHz.
Repecho del Corral, Víctor   +2 more
core   +1 more source

Plasticity enhancement in metallic glasses via aging-assisted ultrasonic vibrations

open access: yesMaterials Futures
The aging of glassy materials is an inevitable process leading to progressive property degradation. In metallic glasses (MGs), aging-induced property degradation poses a persistent challenge to their applications.
Jianyu Chen   +16 more
doaj   +1 more source

Improved Coordinated Control Strategy of Multi-terminal DC Grids Considering Frequency Adaptation and Fast Stabilization Characteristics

open access: yesZhongguo dianli
Multi-terminal flexible DC transmission (VSC-MTDC) technology has a wide range of application prospects in large-scale and wide-range multiple types of renewable energy grid-connection and outward transmission.
Yunrui WU   +4 more
doaj   +1 more source

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