Results 31 to 40 of about 3,434,853 (290)

An Introduction to Particle Acceleration in Shearing Flows

Galaxies, 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

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

Journal 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, Zhiyong GU, Wenjuan WU, Songjie TIAN   +3 more
doaj   +1 more source

Impact of AIS Data Thinning on Ship Air Pollutant Emissions Inventories

Atmosphere, 2022
This article examines the impact of automatic identification system (AIS) data thinning on ship emissions inventory results. AIS data thinning is theoretically proven to lead to a smaller result for a ship’s air pollutant emissions inventory.
Yujun Tian, Lili Ren, Hongyan Wang, Tao Li, Yupeng Yuan, Yan Zhang   +5 more
doaj   +1 more source

Injection of Deformable Capsules in a Reservoir: A Systematic Analysis

Fluids, 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, Alberto M. Gambaruto   +1 more
doaj   +1 more source

Review of particle physics

, 2004
This biennial Review summarizes much of Particle Physics. Using data from previous editions, plus 1726 new measurements from 512 papers, we list, evaluate, and average measured properties of gauge bosons, leptons, quarks, mesons, and baryons.
Particle Data Group, Particle Data Grp
core   +1 more source

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

Entropy
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, Chen Yang, Junyao Zhang, Yunfei Li, Gang Jiang, Junjie Chai   +5 more
doaj   +1 more source

Mechanisms of Inertial Particle Transport in Compressible Wall Turbulence: The Role of Compressibility-modified Coherent Structures [PDF]

Journal of Applied Fluid Mechanics
Particle-laden compressible turbulence plays a key role in industrial and aerospace applications. This study investigates the near-wall transport behavior of inertial particles in compressible channel turbulence using direct numerical simulation (DNS ...
T. Li, W. Zhang, Y. Deng, M. Qin
doaj   +1 more source

Phase coherence of solar wind turbulence from the Sun to Earth

Frontiers 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, Lingling Zhao, Gary P. Zank   +2 more
doaj   +1 more source

Meeting society's transport needs under tight budgets [PDF]

, 2011
In the aftermath of the 2008 financial crisis, both the private and public sectors face stringent constraints in funding for transport infrastructure investment and transport services.
International Transport Forum, OECD
core   +1 more source

Spatial Vulnerability: Bacterial Arrangements, Microcolonies, and Biofilms as Responses to Low Rather than High Phage Densities

Viruses, 2012
The ability of bacteria to survive and propagate can be dramatically reduced upon exposure to lytic bacteriophages. Study of this impact, from a bacterium’s perspective, tends to focus on phage-bacterial interactions that are governed by mass action ...
Stephen T. Abedon
doaj   +1 more source