Results 41 to 50 of about 119,844 (307)

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

Dietary Protein Intake and Peritoneal Protein Losses in Peritoneal Dialysis Patients

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Peritoneal dialysis (PD) patients lose protein in their waste dialysate, potentially increasing their risk for malnutrition. We wished to determine whether there was any association between losses and dietary protein intake (DPI). Methods DPI was assessed from 24‐h dietary recall using Nutrics software.
Haalah Shaaker, Andrew Davenport
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

Simulation and Analysis of the Optimal Electric Field from Modifications to the Winding Design for the Tesla Transformer

open access: yesEnergies
This research aims to present a study of the effects of the Tesla transformer in order to find the proper dimensions. We created a design of the Tesla transformer to reduce the high-voltage electric field-stress problem that happens between primary ...
Nattachote Rugthaicharoencheep   +1 more
doaj   +1 more source

Monolithic flux transformer-coupled high-Tc dc SQUID magnetometers [PDF]

open access: yes, 1995
YBa/sub 2/Cu/sub 3/O/sub 7-x/ based monolithic flux transformer-coupled high-T/sub c/ DC SQUID magnetometers operating up to 73 K have been realized. The devices are characterized by high values of the modulation voltage, up to 32 /spl mu/V at 40 K.
Brons, G.C.S.   +4 more
core   +2 more sources

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS 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

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

Simplified dc to dc converter [PDF]

open access: yes, 1984
A dc to dc converter which can start with a shorted output and which regulates output voltage and current is described. Voltage controlled switches directed current through the primary of a transformer the secondary of which includes virtual reactance ...
Gruber, R. P.
core   +1 more source

Influence of grid configuration on current conducting behaviour in PV installations [PDF]

open access: yes, 2011
On the roof of an industrial site a 385 kWp PhotoVoltaic installation is operational. When production of this system reaches 60% of the installed power, the circuit breaker trips.
Debruyne, Colin   +3 more
core   +2 more sources

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

open access: yesFEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi   +5 more
wiley   +1 more source

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