Results 21 to 30 of about 6,577,745 (189)

Direct Simulation Monte Carlo Modeling of Ammonia in Comet C/2014 Q2 (Lovejoy)

open access: yesThe Astronomical Journal, 2023
Ammonia (NH _3 ), likely the most abundant nitrogen-bearing molecule in cometary ices followed by hydrogen cyanide, is believed to be stored in the nucleus predominantly as a parent ice.
Hideyo Kawakita   +7 more
doaj   +1 more source

Highly underexpanded rarefied jet flows

open access: yesFrontiers in Mechanical Engineering, 2023
A highly underexpanded jet outflow into the background in transition and scattering regimes is studied computationally. The direct simulation Monte Carlo method and Navier–Stokes equations are used. The main parameters’ impact on the jet flow is analyzed.
N. Y. Bykov   +4 more
doaj   +1 more source

Risk Analysis of Project Scheduling Using Microsoft Excel

open access: yesMatrix: Jurnal Manajemen Teknologi dan Informatika, 2018
Scheduling plays a very important role for the successful implementation of construction projects. One of the biggest risks in scheduling is in terms of project costs and duration uncertainty.
I Nyoman Suardika   +4 more
doaj   +1 more source

Monte Carlo Simulation of Percolation Phenomena for Direct Current in Large Square Matrices

open access: yesEnergies, 2023
In this study, an in-depth analysis of the percolation phenomenon for square matrices with dimensions from L = 50 to 600 for a sample number of 5 × 104 was performed using Monte Carlo computer simulations.
Pawel Zukowski   +5 more
doaj   +1 more source

Development of an Adjoint Flux Calculation Technique for Exact Perturbation Theory in Monte Carlo Code MCS [PDF]

open access: yesEPJ Web of Conferences
A calculation technique computing the adjoint flux of perturbed system is developed for the exact perturbation theory in Monte Carlo transport. By using a correlated sampling and iterated fission probability methods together, the adjoint flux of ...
Jo Yunki, Lee Deokjung
doaj   +1 more source

Direct Monte Carlo simulation of nanoscale mixed gas bearings

open access: yesAdvances in Mechanical Engineering, 2015
The conception of sealed hard drives with helium gas mixture has been recently suggested over the current hard drives for achieving higher reliability and less position error.
Kyaw Sett Myo   +4 more
doaj   +1 more source

A Review of Research on the Vacuum Plume

open access: yesAerospace, 2022
Chemical and electrical thrusters are generally utilized to control the attitude and orbit of spacecraft in aerospace. When they are firing, the exhaust expands into the vacuum environment, known as the vacuum plume.
Guobiao Cai   +5 more
doaj   +1 more source

IMPLEMENTASI MARKOV CHAIN MONTE CARLO PADA PENDUGAAN HYPERPARAMETER REGRESI PROSES GAUSSIAN

open access: yesMedia Statistika, 2011
This paper studies the implementation of Markov Chain Monte Carlo on estimating the hyperparameter of Gaussian process. Metropolish-Hasting (MH) algorithm is used to generate the random samples from the posterior distribution that can not be generated by
Moch. Abdul Mukid, Sugito Sugito
doaj   +1 more source

Why Monte Carlo Simulations are Inferences and not Experiments [PDF]

open access: yes, 2012
Monte Carlo Simulations arrive at their results by introducing randomness, sometimes derived from a physical randomizing device. Nonetheless, we argue, they open no new epistemic channels beyond that already employed by traditional simulations: the ...
John D. Norton   +3 more
core   +2 more sources

Monte Carlo simulations of $$\gamma $$-directional correlations and their application on FIFRELIN cascades [PDF]

open access: yesThe European Physical Journal A, 2022
12 pages, 9 ...
A. Chalil   +4 more
openaire   +2 more sources

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