Results 61 to 70 of about 2,794,334 (300)

A similar feature point matching method for aerial electric power tower images based on a one-ring neighborhood of vertices

open access: yesScience and Technology for Energy Transition
Due to the susceptibility of images to various factors such as scale changes, imaging conditions, and image noise, traditional feature point matching methods are difficult to achieve ideal matching accuracy, leading to many challenges in the automatic ...
Chen Keyu   +5 more
doaj   +1 more source

Development of a portable retractable tower naming plate paster [PDF]

open access: yesE3S Web of Conferences
Due to the use of the new line and the new station area, the existing tower naming plate has not met the requirements of the latest specification, and it is urgent to replace it in batches, but the traditional naming plate pasting work must be carried ...
Yang Yu   +6 more
doaj   +1 more source

Digital Current-Control Schemes [PDF]

open access: yes, 2009
The paper is about comparing the performance of digital signal processor-based current controllers for three-phase active power filters. The wide use of nonlinear loads, such as front-end rectifiers connected to the power distribution systems for dc ...
Bojoi, Iustin Radu   +3 more
core   +1 more source

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

Small, efficient power supply for xenon lamps [PDF]

open access: yes, 1970
Device, which operates from 28 V dc, has four sections, a preregulator, a dc-to-dc converter, a current regulator, and a high voltage starter.
Goodwin, J. E.
core   +1 more source

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

Research on renewable energy industry technology and choice [PDF]

open access: yesE3S Web of Conferences
There are great differences in the types, development levels, and technological costs of renewable energy technologies, and they need to be classified and guided at the same time as comprehensive development.
Gai Di   +9 more
doaj   +1 more source

Harmonic correction in power supplies feeding non-linear loads [PDF]

open access: yes, 2014
This paper focuses on the design of an electronic circuit which can be used in conjunction with the power supplies used at the input of non-linear loads (computers, TV sets, etc.) in order to filter out the input current harmonics in such loads.
Darwish, M, Dimitriadis, P
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

Magnetically switched power supply system for lasers [PDF]

open access: yes, 1987
A laser power supply system is described in which separate pulses are utilized to avalanche ionize the gas within the laser and then produce a sustained discharge to cause the gas to emit light energy.
Pacala, Thomas J.
core   +1 more source

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