Results 21 to 30 of about 223,851 (268)

The Research of Preparation Process of Tungsten Oxide with Enriched 186W Isotope

open access: yesJournal of Isotopes, 2023
Enriched tungsten-186 oxide is one of the stable isotope products of tungsten. It is used to prepare the radioactive medical isotope product 188WO3, which can be used as the target material of 188W/188Re generator to produce medical 188Re isotope product,
ZHOU Hongyan;SHI Pengyuan;WANG Jing;WANG Ke;LI Yujiao
doaj  

An Introduction to Particle Acceleration in Shearing Flows

open access: yesGalaxies, 2019
Shear flows are ubiquitously present in space and astrophysical plasmas. This paper highlights the central idea of the non-thermal acceleration of charged particles in shearing flows and reviews some of the recent developments.
Frank M. Rieger
doaj   +1 more source

Particle transport processes [PDF]

open access: yesNature, 1980
Transport Theory. By J.J. Duderstadt and W.R. Martin. Pp.613. (Wiley: New York and Chichester, UK, 1979.) £24.
openaire   +1 more source

Surrogate Modelling for High-speed Rotating Flow Fields Based on Multi-fidelity Data Fusion

open access: yesJournal of Isotopes
High-speed rotating flow fields play a pivotal role in the mechanical systems used for stable heavy isotopes. The high dimensional design space of such complex rotating machinery is characterized by strong nonlinearity and substantial parameter coupling.
Xiaowei XU   +3 more
doaj   +1 more source

Transport of Solar Energetic Particles [PDF]

open access: yesInternational Astronomical Union Colloquium, 1994
AbstractNew developments in the understanding of the interplanetary transport of solar cosmic rays are reviewed. Based on carefully analyzed solar particle events observed on the Helios and ISEE 3 spacecraft, the relation of transport parameters to the structure of the interplanetary magnetic field is discussed.
openaire   +1 more source

Injection of Deformable Capsules in a Reservoir: A Systematic Analysis

open access: yesFluids, 2019
Motivated by red blood cell dynamics and injectable capsules for drug delivery, in this paper, a computational study of capsule ejection from a narrow channel into a reservoir is undertaken for a combination of varying deformable capsule sizes and ...
Alessandro Coclite   +1 more
doaj   +1 more source

Phase coherence of solar wind turbulence from the Sun to Earth

open access: yesFrontiers in Astronomy and Space Sciences, 2023
The transport of energetic particles in response to solar wind turbulence is important for space weather. To understand charged particle transport, it is usually assumed that the phase of the turbulence is randomly distributed (the random phase ...
Masaru Nakanotani   +2 more
doaj   +1 more source

Machine Learning-Assisted Hartree–Fock Approach for Energy Level Calculations in the Neutral Ytterbium Atom

open access: yesEntropy
Data-driven machine learning approaches with precise predictive capabilities are proposed to address the long-standing challenges in the calculation of complex many-electron atomic systems, including high computational costs and limited accuracy. In this
Kaichen Ma   +5 more
doaj   +1 more source

Optimal Transport Particle Filters

open access: yes2023 62nd IEEE Conference on Decision and Control (CDC), 2023
This paper is concerned with the theoretical and computational development of a new class of nonlinear filtering algorithms called the optimal transport particle filters (OTPF). The algorithm is based on a recently introduced variational formulation of the Bayes' rule, which aims to find the Brenier optimal transport map between the prior and the ...
Al-Jarrah, Mohammad   +2 more
openaire   +2 more sources

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