Results 41 to 50 of about 118,594 (289)

Research on lightning stroke model and characteristics of electronic transformer

open access: yesMATEC Web of Conferences, 2018
In order to improve the reliability of power supply, a large number of electronic voltage and current transformers are used in digital substations. In this paper, the mathematical model of the electronic transformer is analyzed firstly, and its circuit ...
Li Mu   +3 more
doaj   +1 more source

Lightweight, high-frequency transformers [PDF]

open access: yes, 1983
The 25-kVA space transformer was developed under contract by Thermal Technology Laboratory, Buffalo, N. Y. The NASA Lewis transformer technology program attempted to develop the baseline technology. For the 25-kVA transformer the input voltage was chosen
Schwarze, G. E.
core   +1 more source

Organoids in pediatric cancer research

open access: yesFEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Snake-Like Robot Workspace Solving Method Based on Improved Monte Carlo Method

open access: yesApplied Bionics and Biomechanics
The method is applicable for solving the obstacle avoidance workspace of a snake-like robot working on high-voltage transmission cables, based on an improved Monte Carlo method, to address the issues of uneven distribution of scattered points, difficulty
ZhiYong Yang   +6 more
doaj   +1 more source

Design Considerations on Voltage and Current Transfer Ratio of High-Frequency Transformers

open access: yesCSEE Journal of Power and Energy Systems
A high frequency (HF) transformer is key equipment for dc-dc converter to achieve galvanic isolation and voltage transformation. As operating frequency increases, voltage and current transfer ratio of HF transformer may significantly deviate from the ...
Chen Liu, Lei Qi, Xiang Cui
doaj   +1 more source

Transformer regulated self-stabilizing chopper [PDF]

open access: yes, 1969
A self-stabilizing voltage regulator is described. Direct current voltage regulation employing a series transistor rendered conductive during various portions of a cycle is controlled by saturation of an autotransformer. The constant volt-second capacity
Raposa, F. L.
core   +1 more source

Interplay between circadian and other transcription factors—Implications for cycling transcriptome reprogramming

open access: yesFEBS Letters, EarlyView.
This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley   +1 more source

Calculation of inlet capacitance for long-duration induction voltage test of single-phase three-winding converter transformers

open access: yesEnergy Reports, 2023
The converter transformer is one of the core equipment in the high-voltage DC (HVDC) transmission project. The capacity of the converter transformer is much larger than that of an ordinary AC transformer, and its main function is to convert the AC system
Shijie Li   +5 more
doaj   +1 more source

High voltage isolation transformer [PDF]

open access: yes, 1985
A high voltage isolation transformer is provided with primary and secondary coils separated by discrete electrostatic shields from the surfaces of insulating spools on which the coils are wound.
Clatterbuck, C. H., Ruitberg, A. P.
core   +1 more source

Function‐driven design of a surrogate interleukin‐2 receptor ligand

open access: yesFEBS Letters, EarlyView.
Interleukin (IL)‐2 signaling can be achieved and precisely fine‐tuned through the affinity, distance, and orientation of the heterodimeric receptors with their ligands. We designed a biased IL‐2 surrogate ligand that selectively promotes effector T and natural killer cell activation and differentiation. Interleukin (IL) receptors play a pivotal role in
Ziwei Tang   +9 more
wiley   +1 more source

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