Results 61 to 70 of about 1,037,140 (298)

Transient current spectroscopy of a quantum dot in the Coulomb blockade regime

open access: yes, 2000
Transient current spectroscopy is proposed and demonstrated in order to investigate the energy relaxation inside a quantum dot in the Coulomb blockade regime.
A. V. Khaetskii   +18 more
core   +1 more source

Daksha: on alert for high energy transients

open access: yesExperimental Astronomy
We present Daksha, a proposed high energy transients mission for the study of electromagnetic counterparts of gravitational wave sources, and gamma ray bursts. Daksha will comprise of two satellites in low earth equatorial orbits, on opposite sides of earth.
Varun Bhalerao   +48 more
openaire   +3 more sources

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

open access: yesFEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka   +11 more
wiley   +1 more source

Failure mechanisms of BaTiO3-Based multilayer ceramic capacitors under coupled impact and high electric field: The role of microstructure and electromechanical coupling

open access: yesJournal of Materials Research and Technology
The operational reliability of high-voltage multilayer ceramic capacitors (MLCCs) under simultaneous mechanical impact and high electric field is critical for pulsed power systems.
Lei Wang   +7 more
doaj   +1 more source

Data-driven modeling of geometry-adaptive steady heat conduction based on convolutional neural networks

open access: yesCase Studies in Thermal Engineering, 2021
A data-driven model for rapid prediction of the steady-state heat conduction of a hot object with arbitrary geometry is developed. Mathematically, the steady-state heat conduction can be described by the Laplace's equation, where a heat (spatial ...
Jiang-Zhou Peng   +4 more
doaj   +1 more source

Transient signal generation in a self-assembled nanosystem fueled by ATP [PDF]

open access: yes, 2015
A fundamental difference exists in the way signal generation is dealt with in natural and synthetic systems. While nature uses the transient activation of signalling pathways to regulate all cellular functions, chemists rely on sensory devices that ...
Pezzato, Cristian, Prins, LEONARD JAN
core   +2 more sources

The World's Transient Energy Resources [PDF]

open access: yesNature, 1954
Energy in the Future By Palmer Cosslett Putnam. Pp. x + 556 + 17 plates. (New York: D. Van Nostrand Company, Inc.; London: Macmillan and Co., Ltd., 1953.) 90s. net.
openaire   +1 more source

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Multi-Physics Coupling Parameter Analysis of TiZrHf Medium Entropy Alloy

open access: yesMetals
The complex coupling relationships among the thermal, mechanical, and electrical physical parameters of TiZrHf-based medium-entropy alloys represent a key factor restricting their practical applications under complex extreme environments.
Mengzhou Chang   +3 more
doaj   +1 more source

Data-Driven Modeling of Geometry-Adaptive Steady Heat Convection Based on Convolutional Neural Networks

open access: yesFluids, 2021
Heat convection is one of the main mechanisms of heat transfer, and it involves both heat conduction and heat transportation by fluid flow; as a result, it usually requires numerical simulation for solving heat convection problems.
Jiang-Zhou Peng   +5 more
doaj   +1 more source

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