Results 21 to 30 of about 542,620 (267)

Numerical Simulation on Interfacial Characteristics in Supersonic Steam–water Injector Using Particle Model Method

open access: yesEnergies, 2019
Steam–water injectors have been widely applied in various industrial fields because of their compact and passive features. Despite its straightforward mechanical design, the internal two-phase condensing flow phenomena are extremely complicated. In
Xianbing Chen   +3 more
doaj   +1 more source

Classical models of subatomic particles [PDF]

open access: yesPhysics Letters A, 1993
We look at the program of modelling a subatomic particle---one having mass, charge, and angular momentum---as an interior solution joined to a classical general-relativistic Kerr-Newman exterior spacetime. We find that the assumption of stationarity upon which the validity of the Kerr-Newman exterior solution depends is in fact violated quantum ...
Mann, R. B., Morris, M. S.
openaire   +2 more sources

Ecohydrological particle model based on representative domains [PDF]

open access: yesHydrology and Earth System Sciences, 2018
Non-uniform infiltration and subsurface flow in structured soils is observed in most natural settings. It arises from imperfect lateral mixing of fast advective flow in structures and diffusive flow in the soil matrix and remains one of the most ...
C. Jackisch, E. Zehe
doaj   +1 more source

Long-lived particle phenomenology in the 2HDM+a model

open access: yesJournal of High Energy Physics, 2023
Higgs decays displaced from the primary interaction vertex represent a striking experimental signature that is actively searched for by the ATLAS, CMS and LHCb collaborations.
Ulrich Haisch, Luc Schnell
doaj   +1 more source

Advanced Porous Particle Model in Biomass Pyrolysis

open access: yesChemical Engineering Transactions, 2022
In order to decrease anthropogenic CO2 emissions and to become independent from fossil resources, one alternative for energy generation and production of platform-chemicals is the usage of biomass.
Andrea Dernbecher, Alba Dieguez-Alonso
doaj   +1 more source

Improved Interacting Multiple Model Particle Filter Algorithm [PDF]

open access: yesXibei Gongye Daxue Xuebao, 2018
For the issue of limited filtering accuracy of interactive multiple model particle filter algorithm caused by the resampling particles don't contain the latest observation information, we made improvements on interactive multiple model particle filter ...

doaj   +1 more source

Assessment of Contact Laws Accounting for Softening in 3D Rigid Concrete Particle Models

open access: yesBuildings
To obtain predictions closer to concrete behaviour, it is necessary to employ a particle model (PM) that considers contact softening. A bilinear softening contact model (BL) has been adopted in PM studies.
Nuno Monteiro Azevedo   +2 more
doaj   +1 more source

Performance Comparison of Different Particle Size Distribution Models in the Prediction of Soil Particle Size Characteristics

open access: yesLand, 2022
Particle size distribution (PSD) is a rich source of information about soil properties, including soil gradation and soil particle size characteristics. This paper compared the PSD prediction ability of three types of mathematical model. We selected nine
Hao Zhang   +5 more
doaj   +1 more source

Integrable Models with Unstable Particles [PDF]

open access: yes, 2006
28 pages Latex, 1 eps figure, proceeding of the workshop on "Infinite dimensional algebras and quantum integrable systems" (Faro, Portugal, July, 2003)
Castro-Alvaredo, O., Fring, A.
openaire   +3 more sources

A Novel 3D Reinforced Particle Model for Reinforced Concrete Fracture Assessment: Formulation and Validation

open access: yesApplied Mechanics
Rigid particle models (PMs) that explicitly consider the influence of the aggregate structure and its physical interaction mechanisms have been used to predict cracking phenomena in concrete.
Nuno Monteiro Azevedo   +2 more
doaj   +1 more source

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