Results 141 to 150 of about 6,219 (301)

The Influence of Medium Motion in Problems of Neutron Transport Equation.

open access: yes, 2002
: The neutron transport equation in the case of moving medium is investigated. In the derivation of transport equation the phase volume evolution and cross-sections relative velocity dependence are taking into account.
Orlov Y. N. http://library.keldysh.ru/author_page.asp?aid=1158
core  

An application of the decomposition method to the matrix Riccati equation in a neutron transport process

open access: yes, 1988
The differential matrix Riccati equation with matrix variable coefficients, arising in transport theory, is considered. An analytical approximation of the solution of the non-linear equation is investigated using the Adomian decomposition method, and an ...
Rach, R, Pandolfi, M, Adomian, G
core   +1 more source

Macro Monte Carlo dose calculation for very high energy electron (VHEE) radiotherapy. [PDF]

open access: yesMed Phys
Abstract Background Very high energy electron (VHEE) radiotherapy has gained growing interest owing to its potential to reach deep‐seated targets and induce FLASH effect. Dose calculations can be performed using analytical or Monte Carlo (MC) methods. Analytical approaches enable rapid dose computation but suffer from limited accuracy in heterogeneous ...
Zhu C   +6 more
europepmc   +2 more sources

Hybrid Deterministic/Monte Carlo Methods for Solving the Neutron Transport Equation and k-Eigenvalue Problem

open access: yes, 2013
The goal of this thesis is to build hybrid deterministic/Monte Carlo algorithms for solving the neutron transport equation and associated k-eigenvalue problem.
Willert, Jeffrey Alan
core  

Formulation of a Ritz-Galerkin type procedure for the approximate solution of the neutron transport equation

open access: yes, 1975
The one-group neutron transport equation is commonly given as an integrodifferential equation for the neutron density ψ(x, ω) over a domain G × S in the five-dimensional phase space E3 × S(¦ ω ¦ = 1).
Leaf, Gary K   +2 more
core   +1 more source

Bicubic spline function approximation of the solution of the fast neutron transport equation

open access: yes, 1975
The numerical method of approximation of the fast neutron stationary transport equation by means of bicubic cardinal splines is investigated in order to calculate the neutron flux in the one- dimensional plane geometry. A numerical example is given.
Chamayou, J M F
core  

Research on Evaporation Characteristics and Safe Storage Duration of Marine Liquid Hydrogen Storage Tanks Under the Coupling Effect of Heat Leakage and Sloshing

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Liquid hydrogen, a zero‐carbon and high–energy‐density fuel, is a promising option for future oceangoing vessels. During maritime transportation, onboard cryogenic tanks are exposed to ambient heat leakage and ship‐induced roll motion, which can trigger sloshing and fundamentally modify the coupled thermo‐fluid processes governing boil‐off and
Yan Deng   +5 more
wiley   +1 more source

PEG Alternatives in Liposomal Nanocarriers: Physicochemical Characteristics and Sustainable Process Strategies

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT The global trend toward sustainable and intensified bioprocesses is driving innovation in the design and scalable synthesis of liposomal nanocarriers, a cornerstone of modern drug delivery. For decades, these nanosystems have relied exclusively on polyethylene glycol (PEG) for their sustained circulation in vivo, but they are currently ...
Chandra Has
wiley   +1 more source

A New Paradigm for Understanding the Rheology and Processability of Poly(p‐Phenylene Terephthalamide) Liquid‐Crystalline Solutions

open access: yesJournal of Applied Polymer Science, EarlyView.
Kevlar is traditionally modeled as a rigid‐rod polymer, yet rheological behavior deviates from this assumption. The review introduces a novel “twist‐tie” entanglement theory for aramid polymer chains in the nematic liquid crystal state, providing a molecular explanation for deviations from rigid‐rod models. Understanding twist‐tie entanglement dynamics
Emma Egli   +3 more
wiley   +1 more source

Tuning the Magnetic Phase Transitions in TbMn2‐xTixSi2 (x = 0–0.3)

open access: yesAdvanced Physics Research, EarlyView.
ABSTRACT Magnetocaloric materials receive considerable attention as promising candidates for next‐generation energy‐efficient and environmentally benign solid‐state refrigeration technologies. These materials exhibit the magnetocaloric effect (MCE), whereby heat is absorbed or released upon the application or removal of a magnetic field. In this study,
E. M. H. Arif   +5 more
wiley   +1 more source

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