Results 41 to 50 of about 118,245 (290)
Frequencies Dominations for Different Rating of Distribution Transformer under Transients [PDF]
, 2020 Power transients faults on high voltage lines are prominently due to high frequency transients. These transients affect the predicted life and efficiency of equipment.
Faisal, Haseeb +3 more
core
Analysis and design of a modular multilevel converter with trapezoidal modulation for medium and high voltage DC-DC transformers [PDF]
, 2015 Conventional dual active bridge topologies provide galvanic isolation and soft-switching over a reasonable operating range without dedicated resonant circuits.
Adam, Grain P. +4 more
core +2 more sources
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background B‐cell lymphoblastic lymphoma (B‐LBL) represents a rare variety of non‐Hodgkin lymphoma, with limited research on its biology, progression, and management. Methods A retrospective analysis was performed on the clinical characteristics of 256 patients aged ≤18 years who received treatment under the China Net Childhood Lymphoma (CNCL)‐
Zhijuan Liu +20 more
wiley +1 more source
Snake-Like Robot Workspace Solving Method Based on Improved Monte Carlo Method
Applied Bionics and BiomechanicsThe 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
CSEE Journal of Power and Energy SystemsA 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
Lightweight, high-frequency transformers [PDF]
, 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
Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM
FEBS Letters, EarlyView.Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley +1 more source
Energy 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
Transformer regulated self-stabilizing chopper [PDF]
, 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
Concept level evaluation of the optical voltage and current sensors and an arrayed waveguide grating for aero-electrical system applications [PDF]
, 2007 In this paper we present, for the first time, the hybrid fiber-optic voltage and current sensors interrogated using an arrayed waveguide grating (AWG) device.
Fusiek, G., McDonald, J.R., Niewczas, P.
core +1 more source