Results 31 to 40 of about 45,198 (267)

Development and Challenge of DC Power System With Different Voltage Levels

open access: yes发电技术, 2018
With the increasing scale of new energy power generation, longer and longer transmission distances, and access to large-scale distributed generation and DC loads, it is increasingly difficult for existing AC transmission systems to meet the needs of ...
Yingbiao LI   +3 more
doaj   +1 more source

A Practical Approach for Optimal Power Distribution Among the West-to-East Power Transmission Channels with Minimized Losses

open access: yesZhongguo dianli, 2020
In order to reduce the power losses in power transmission from West to East, an optimal power distribution strategy with minimized losses is studied for the West-to-East power transmission channels based on both theoretical analysis and simulation ...
Gaihong CHENG, Qingchun ZHU, Jing YAN
doaj   +1 more source

Research on an AC/DC networking and transmission scheme for large-scale onshore hydro-wind-solar integrated bases

open access: yesZhejiang dianli, 2023
The large-scale onshore hydro-wind-solar integrated bases in southwest China have great development potential, and it is necessary to determine a suitable scheme for power transmission to the eastern load center.
XU Zheng   +4 more
doaj   +1 more source

Light‐Assisted 3D Printing Techniques and Photocrosslinking Strategies: Recent Advances in Musculoskeletal Tissue Engineering

open access: yesAdvanced Engineering Materials, EarlyView.
In this review, the current state of light‐assisted 3D printing as it pertains to engineering musculoskeletal tissues including bone, cartilage, skeletal muscle, tendon, and ligaments is summarized. Common printing techniques, photoreactive materials, and study design choices are compiled and reviewed.
Meagan Morgan, Bin Zhang, Roger Narayan
wiley   +1 more source

Hybrid wireless power transfer: a review

open access: yesWireless Power Transfer
Inductive power transfer (IPT) and capacitive power transfer (CPT) have been extensively studied and applied in wireless power transfer (WPT). In the process of system design and analysis, only the characteristics of magnetic or electric fields are ...
Zhongyu Dai   +9 more
doaj   +1 more source

A Recursive Solution for Power-Transmission Loss in DC-Powered Networks [PDF]

open access: yesEnergies, 2014
This article presents a recursive solution to the power-transmission loss in DC-powered networks. In such a network, the load cannot be modeled as a fixed equivalent resistance value, since the switching regulator may draw more or less current based on the actual supply voltage to meet the power demand.
Sehwan Kim, Pai H. Chou
openaire   +2 more sources

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

open access: yesAdvanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara   +8 more
wiley   +1 more source

A Virtual Impedance Control Strategy for Improving the Stability and Dynamic Performance of VSC–HVDC Operation in Bidirectional Power Flow Mode

open access: yesApplied Sciences, 2019
It is a common practice that one converter controls DC voltage and the other controls power in two-terminal voltage source converter (VSC)−based high voltage DC (HVDC) systems for AC gird interconnection.
Yuye Li   +4 more
doaj   +1 more source

Proposed asymmetric phase shift modulation strategy to improve zero-voltage-switch range and transmission power range for dual active bridge converter

open access: yesEnergy Reports, 2023
The dual active bridge (DAB) DC–DC converter is typical in DC transformers to realize the voltage transformation and power transmission, which is determined by modulation. However, in traditional phase shift modulation strategies, the zero-voltage-switch
Yiting Xiao, Yuanpeng Guan, Li Qin
doaj   +1 more source

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

open access: yesAdvanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein   +4 more
wiley   +1 more source

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