Results 31 to 40 of about 18,366,547 (391)

Influence of the single-particle structure on the nuclear surface and the neutron skin [PDF]

, 2014
We analyze the influence of the single-particle structure on the neutron density distribution and the neutron skin in Ca, Ni, Zr, Sn, and Pb isotopes. The nucleon density distributions are calculated in the Hartree-Fock+BCS approach with the SLy4 Skyrme ...
M. Warda, M. Centelles, X. Viñas, X. Roca-Maza   +3 more
semanticscholar   +1 more source

Weibel instability and associated strong fields in a fully 3D simulation of a relativistic shock [PDF]

, 2009
Plasma instabilities (e.g., Buneman, Weibel and other two-stream instabilities) excited in collisionless shocks are responsible for particle (electron, positron, and ion) acceleration.
B. Zhang, Buneman, Chang, D. H. Hartmann, Dieckmann, Frederiksen, H. Sol, Hededal, Hededal, J. Niemiec, Jaroschek, K.-I. Nishikawa, M. Medvedev, M. Oka, M. Pohl, Martins, Medvedev, Medvedev, Mizuno, Niemiec, Nishikawa, Nishikawa, Nishikawa, Nishikawa, Nishikawa, P. E. Hardee, Ramirez-Ruiz, Rosen, Silva, Spitkovsky, Spitkovsky, Y. Mizuno, Zhang   +32 more
core   +5 more sources

Effect of Analytical Particle Size on Pore Structure of High Volatile Bituminous Coal and Anthracite Using Low-Pressure N2 and CO2 Adsorption

Adsorption Science & Technology, 2022
To investigate the effect of analytical particle size on pore structure, mesopore (2-50 nm) and micropore (
Zheng Dang, Xiaoming Wang, Shihui Hou, Sidong Pan   +3 more
doaj   +1 more source

Synthesis of core-shell hematite (α-Fe2O3) nanoplates: Quantitative analysis of the particle structure and shape, high coercivity and low cytotoxicity

, 2017
Hematite core-shell nanoparticles with plate-like morphology were synthesized using a one-step hydrothermal synthesis. An XRPD analysis indicates that the sample consist of single-phase α-Fe2O3 nanoparticles.
M. Tadić, Lazar Kopanja, M. Panjan, S. Kralj, J. Nikodinović-Runić, Z. Stojanović   +5 more
semanticscholar   +1 more source

Cluster Transformation Coefficients for Structure and Dynamics Calculations in n-Particle Systems: Atoms, Nuclei, and Quarks [PDF]

, 2002
The structure and dynamics of an n-particle system are described with coupled nonlinear Heisenberg's commutator equations where the nonlinear terms are generated by the two-body interaction that excites the reference vacuum via particle-particle and ...
Beiersdorfer P, Bouchard S, Brown G E, Crespo López-Urrutia J R, D Ursescu, de-Shalit A, Dobrowolsky A V, Federspiel F J, Fetter A L, Geiger P, Klaft I, L C Liu, Lane A M, M Tomaselli, Olmos de Leon V, Person H, Petrun'kin V A, Racah G, Rowe D J, S Fritzsche, Schneider S M, Seelig P, Shabaev V M, Shabaev V M, Sunergren P, T K hl, Tanihata I, Tomaselli M, Tomaselli M, Tomaselli M, Tomaselli M, Tomaselli M, Tomaselli M, Tomaselli M, Tomaselli M, Tomaselli M, Tomaselli M, W N rtersh user, Wigner E P   +38 more
core   +2 more sources

Spacetime Structures of Quantum Particles [PDF]

International Journal of Physics, 2018
In this work first we show that the three main formulations of physics, namely, Newton’s second law of motion, Maxwell field equations of electromagnetism and Einstein field equations of gravitation can be formulated in similar covariant forms so that the formulations differ only by the nature of the geometrical objects that represent the corresponding
openaire   +1 more source

An integrated particle model for fluid–particle–structure interaction problems with free-surface flow and structural failure

, 2018
Discrete Element Method (DEM) and Smoothed Particles Hydrodynamics (SPH) are integrated to investigate the macroscopic dynamics of fluid–particle–structure interaction (FPSI) problems. With SPH the fluid phase is represented by a set of particle elements
Ke Wu, Dongmin Yang, N. Wright, Amirul Khan   +3 more
semanticscholar   +1 more source

Variability in individual particle structure and mixing states between the glacier–snowpack and atmosphere in the northeastern Tibetan Plateau

The Cryosphere, 2018
. Aerosols affect the Earth's temperature and climate by altering the radiative properties of the atmosphere. Changes in the composition, morphological structure, and mixing state of aerosol components will cause significant changes in radiative forcing ...
Z. Dong, Shi-chang Kang, D. Qin, Y. Shao, S. Ulbrich, X. Qin   +5 more
semanticscholar   +1 more source

New tools for automated cryo-EM single-particle analysis in RELION-4.0

bioRxiv, 2021
We describe new tools for the processing of electron cryo-microscopy (cryo-EM) images in the fourth major release of the RELION software. In particular, we introduce VDAM, a Variable-metric gradient Descent algorithm with Adaptive Moments estimation, for
D. Kimanius, Liyi Dong, G. Sharov, T. Nakane, S. Scheres   +4 more
semanticscholar   +1 more source

Structural Emergence in Particle Dispersions

Langmuir, 2017
Particle dispersions, such as pigment-based inks, comprise weakly bound, milled nanoparticles. The properties of these pigments depend on both their chemical composition and a rather complex structural hierarchy which emerges from these dispersions.
Andrew Mulderig, Gregory Beaucage, Karsten Vogtt, Hanqiu Jiang, Yan Jin, Lisa Clapp, Donald C. Henderson   +6 more
openaire   +3 more sources