Results 31 to 40 of about 9,952,830 (307)

A review of current collectors for lithium-ion batteries

open access: yesJournal of Power Sources, 2021
Lithium-ion batteries are the state-of-the-art power source for most consumer electronic devices. Current collectors are indispensable components bridging lithium-ion batteries and external circuits, greatly influencing the capacity, rate capability and ...
Pengchen Zhu   +5 more
semanticscholar   +1 more source

Particle Accelerator Focus Automation

open access: yesMeasurement Science Review, 2017
The Laboratório de Aceleradores e Tecnologias de Radiação (LATR) at the Campus Tecnológico e Nuclear, of Instituto Superior Técnico (IST) has a horizontal electrostatic particle accelerator based on the Van de Graaff machine which is used for research in
Lopes José   +3 more
doaj   +1 more source

Upgrading the ECR ion source within FAMA [PDF]

open access: yesNuclear Technology and Radiation Protection, 2018
Recent upgrading of the Facility for Modification and Analysis of Materials with Ion Beams - FAMA, in the Laboratory of Physics of the Vinča Institute of Nuclear Sciences, included the modernization of its electron cyclotron resonance ion source.
Efremov Andrey A.   +6 more
doaj   +1 more source

Design and Performance Test of ENT2465 Long-Life Neutron Tube

open access: yesHe huaxue yu fangshe huaxue
The neutron tube is the core component of the controllable neutron source logging instrument. Its working stability, temperature resistance, neutron yield and other indicators have an important impact on the working performance of instrument. At present,
LIU Ze-wei   +9 more
doaj   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

Generation of small-diameter ion beam for high-precision optical fabrication (Structural optimization of quadrupole magnetic lens using permanent magnets by numerical simulation)

open access: yesNihon Kikai Gakkai ronbunshu, 2020
Ion beam etching is effectively used for the fabrication of high-precision optics. The main application of ion beam etching is to figure large optical surfaces to correct shape errors remaining on polished surfaces. To figure small or medium-size optical
Hideo TAKINO   +2 more
doaj   +1 more source

Increase of SARS-CoV-2 RNA load in faecal samples prompts for rethinking of SARS-CoV-2 biology and COVID-19 epidemiology [version 3; peer review: 2 approved]

open access: yesF1000Research, 2021
Background Scientific evidence for the involvement of human microbiota in the development of COVID-19 disease has been reported recently. SARS-CoV-2 RNA presence in human faecal samples and SARS-CoV-2 activity in faeces from COVID-19 patients have been ...
Mauro Petrillo   +5 more
doaj   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

open access: yesFEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho   +3 more
wiley   +1 more source

Analysis and experimental results of high power ion source with megawatts power for long pulse operation

open access: yesHe jishu, 2022
BackgroundThe high power ion source is the one of the key components of a neutral beam injection system. Long pulse operation of ion source is required for fusion sciences research, but challenges come from the easy break down when operated with long ...
XIE Yahong   +8 more
doaj   +1 more source

Molecular bases of circadian magnesium rhythms across eukaryotes

open access: yesFEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

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