Results 51 to 60 of about 11,744,879 (281)

Shapes of the Nucleon

, 2006
Previously defined spin-dependent quark densities that are matrix elements of specific density operators in proton states of definite spin-polarization generally have an infinite variety of non-spherical shapes.
Alexander Kvinikhidze, Gerald A. Miller, S. Théberge   +2 more
core   +1 more source

Non-spherical core collapse supernovae and nucleosynthesis [PDF]

, 2000
Motivated by observations of supernova SN 1987A, various authors have simulated Rayleigh-Taylor (RT) instabilities in the envelopes of core collapse supernovae (for a review, see Mueller 1998).
Kifonidis, K., Mueller, E., Plewa, T.
core   +3 more sources

Ultrafiltration of non-spherical molecules

Journal of Membrane Science, 2019
Abstract Information about the sizes of the solute molecules and membrane pores is needed to estimate solute rejection in filtration processes. Molecules are normally regarded as spheres, and the Stokes radius is commonly used to represent their molecular size.
Aguirre Montesdeoca, Victor, Bakker, Jaap, Boom, R.M., Janssen, Anja E.M., van der Padt, A.   +4 more
openaire   +2 more sources

New, Spherical Solutions of Non-Relativistic, Dissipative Hydrodynamics

Entropy, 2022
We present a new family of exact solutions of dissipative fireball hydrodynamics for arbitrary bulk and shear viscosities. The main property of these solutions is a spherically symmetric, Hubble flow field. The motivation of this paper is mostly academic:
Gábor Kasza, László P. Csernai, Tamás Csörgő   +2 more
doaj   +1 more source

Critical adsorption on non-spherical colloidal particles

, 2007
We consider a non-spherical colloidal particle immersed in a fluid close to its critical point. The temperature dependence of the corresponding order parameter profile is calculated explicitly.
Abramowitz M., de Gennes P. G., Fisher M. E., L. Harnau, Parsegian V. A., S. Dietrich, S. Kondrat   +6 more
core   +1 more source

Non-Spherical Shapes of the Proton: Existence, Measurement and Computation

, 2008
The nature of the proton wave function can be elucidated by studying the matrix elements of spin-dependent quark density operators SDDs, defined as matrix elements of density operators in proton states of definite spin-polarization.
Miller, Gerald A.
core   +1 more source

Densities, Parton Distributions, and Measuring the Non-Spherical Shape of the Nucleon [PDF]

, 2007
Spin-dependent quark densities, matrix elements of specific density operators in proton states of definite spin-polarization, indicate that the nucleon may harbor an infinite variety of non-spherical shapes. We show that these matrix elements are closely
Miller, Gerald A.
core   +1 more source

Adherence to Protocol Recommendations for Children With Wilms Tumour in Two Consecutive Studies in the United Kingdom and Ireland—Does Variation Matter?

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background and Aims Wilms tumour (WT) has excellent event‐free and overall survival (OS). However, small differences exist between countries participating in the same international study. This led us to examine variation in adherence to protocol recommendations as a potential contributing factor.
Suzanne Tugnait, R. Al‐Saadi, A. Lopez‐Cortes, K. Dzhuma, M. Oostveen, J. Brok, S. Irtan, M. Weeks, J. Bate, S. Baker, R. Williams, M. Powis, D. Saunders, O. Olsen, T. Watson, S. Shelmerdine, S. Vaidya, L. Howell, C. Duncan, G. M. Vujanic, C. Stiller, G. P. Balchin, T. Chowdhury, K. Pritchard‐Jones   +23 more
wiley   +1 more source

High-Order Harmonics Generation Using Spherical and Non-Spherical Nanoparticles

Nanomaterials
The conversion efficiency of 800 nm, 65 fs radiation toward high-order harmonic generation (HHG) in laser-induced plasmas containing spherical and non-spherical nanoparticles (NPs) produced during the laser ablation of different metals in water using ...
Rashid A. Ganeev, Aigars Atvars
doaj   +1 more source

Improvements in the Spherical Collapse Model and Dark Energy Cosmologies

Open Astronomy, 2014
In the present paper, we study how the effects of deviations from spherical symmetry of a system, produced by angular momentum, and shear stress, influence typical parameters of the spherical collapse model, like the linear density threshold for collapse
Del Popolo A.
doaj   +1 more source