Results 41 to 50 of about 3,975,342 (333)

Orientational Ordering in Athermally Sheared, Aspherical, Frictionless Particles

open access: yes, 2019
We numerically simulate the uniform athermal shearing of bidisperse, frictionless, two dimensional spherocylinders and three dimensional prolate ellipsoids. We focus on the orientational ordering of particles as an asphericity parameter $\alpha\to 0$ and
Keta, Yann-Edwin   +3 more
core   +1 more source

Non-equilibrium stochastic dynamics in continuum: The free case [PDF]

open access: yes, 2007
We study the problem of identification of a proper state-space for the stochastic dynamics of free particles in continuum, with their possible birth and death. In this dynamics, the motion of each separate particle is described by a fixed Markov process $
Kondratiev, Y.   +2 more
core   +2 more sources

$\alpha$ particles and the pasta phase [PDF]

open access: yes, 2010
The effects of the $\alpha$ particles in nuclear matter at low densities are investigated within three different parametrizations of relativistic models at finite temperature.
S. Avancini   +3 more
semanticscholar   +1 more source

Characterization of Surface α-Particle Radiation, Internal Traceability and Simulation of Typical Tin Spheres

open access: yesApplied Sciences
Surface α-particle emissivity testing and spectral characterization of two leaded tin spheres (Sn10%Pb90%, Sn63%Pb37%) and one lead-free tin sphere (Sn96.5%Ag3.0%Cu0.5%, SAC305) were carried out.
Longfei Liu   +8 more
doaj   +1 more source

Energetic particle-driven compressional Alfvén eigenmodes and prospects for ion cyclotron emission studies in fusion plasmas

open access: yesNew Journal of Physics, 2016
As a fundamental plasma oscillation the compressional Alfvén waves (CAWs) are interesting for plasma scientists both academically and in applications for fusion plasmas. They are believed to be responsible for the ion cyclotron emission (ICE) observed in
N N Gorelenkov
doaj   +1 more source

Alpha-cluster Condensations in Nuclei and Experimental Approaches for their Studies

open access: yes, 2010
The formation of alpha-clusters in nuclei close to the decay thresholds is discussed. These states can be considered to be boson-condensates, which are formed in a second order phase transition in a mixture of nucleons and alpha-particles. The de Broglie
A. Tohsaki   +38 more
core   +1 more source

Shock fluctuations in flat TASEP under critical scaling

open access: yes, 2014
We consider TASEP with two types of particles starting at every second site. Particles to the left of the origin have jump rate $1$, while particles to the right have jump rate $\alpha$.
Ferrari, Patrik L., Nejjar, Peter
core   +1 more source

Development of the MICROMEGAS Detector for Measuring the Energy Spectrum of Alpha Particles by using a 241-Am Source

open access: yes, 2016
We have developed MICROMEGAS (MICRO MEsh GASeous) detectors for detecting {\alpha} particles emitted from an 241-Am standard source. The voltage applied to the ionization region of the detector is optimized for stable operation at room temperature and ...
Andriamonje, Samuel   +7 more
core   +1 more source

Discrimination of nuclear recoils from alpha particles with superheated liquids [PDF]

open access: yes, 2008
The PICASSO collaboration observed for the first time a significant difference between the acoustic signals induced by neutrons and alpha particles in a detector based on superheated liquids.
F. Aubin   +32 more
semanticscholar   +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

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