Results 1 to 10 of about 118,611,904 (228)

Parametric modeling of random polygonal aggregates in concrete and nusssmerical simulation of uniaxial compression using SPH [PDF]

Scientific Reports
Random polygonal aggregates represent the most realistic aggregate morphology in the mesostructure of concrete. Their angular characteristics and spatial distribution have a decisive influence on the stress concentration, crack initiation, and ultimate ...
Xiaonian Chen, Yiwei Gao, Xiuchang Song, Zhengxiong Bai, Zhen Li, Daniel Dias   +5 more
doaj   +2 more sources

Time‐Resolved Nonlinear Diffuse Femtosecond‐Pulse Reflectometry Using Lithium Niobate Nanoparticles with Two Pulses of Different Colors

Advanced Photonics Research, 2021
Time‐resolved nonlinear optical sum‐frequency generation (SFG) of two differently colored, infrared (sub‐)picosecond laser pulses is studied by means of nonlinear diffuse femtosecond‐pulse reflectometry using lithium niobate nanoparticle pellets.
Christian Kijatkin, Bjoern Bourdon, Jan Klenen, Laura Kocsor, Zsuzsanna Szaller, Mirco Imlau   +5 more
doaj   +1 more source

The Simulation-Based Approach for Random Speckle Pattern Representation in Synthetically Generated Video Sequences of Dynamic Phenomena

Sensors, 2022
Structural health monitoring systems that employ vision data are under constant development. Generating synthetic vision data is an actual issue. It allows, for example, for obtention of additional data for machine learning techniques or predicting the ...
Paweł Zdziebko, Ziemowit Dworakowski, Krzysztof Holak   +2 more
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Thermal onsets of Soret and Dufour aspects for species of microorganisms transport by a movable riga surface

Case Studies in Thermal Engineering, 2022
In nature, there are different groups of microorganisms. These groups are: archaea, bacteria, fungi (yeasts and molds), protozoa, algae and viruses. In this research, general species of microorganisms is considered.
Faris Alzahrani, M. Ijaz Khan
doaj   +1 more source

Synthesis and Computer Study of Population Dynamics Controlled Models Using Methods of Numerical Optimization, Stochastization and Machine Learning

Mathematics, 2021
The problems of synthesis and analysis of multidimensional controlled models of population dynamics are of both theoretical and applied interest.
Anastasia V. Demidova, Olga V. Druzhinina, Olga N. Masina, Alexey A. Petrov   +3 more
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An Analysis of Deterministic Chaos as an Entropy Source for Random Number Generators

Entropy, 2018
This paper presents an analytical study on the use of deterministic chaos as an entropy source for the generation of random numbers. The chaotic signal generated by a phase-locked loop (PLL) device is investigated using numerical simulations.
Kaya Demir, Salih Ergün
doaj   +1 more source

An Energy Efficient Multiuser Uplink Transmission Scheme in the Next Generation WLAN for Internet of Things

International Journal of Distributed Sensor Networks, 2016
This paper proposes a novel and energy efficient Internet of Things (IoT) communication scheme for next generation Wireless Local Area Network (WLAN).
Woojin Ahn, Young Yong Kim, Ronny Yongho Kim   +2 more
doaj   +1 more source

Entropy Generation and Consequences of Binary Chemical Reaction on MHD Darcy–Forchheimer Williamson Nanofluid Flow Over Non-Linearly Stretching Surface

Entropy, 2019
The current article aims to present a numerical analysis of MHD Williamson nanofluid flow maintained to flow through porous medium bounded by a non-linearly stretching flat surface.
Ghulam Rasool, Ting Zhang, Ali J. Chamkha, Anum Shafiq, Iskander Tlili, Gullnaz Shahzadi   +5 more
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Concurrent multi-scale domain decomposition simulation of discontinuous deformation of dam concrete

Shuili Shuiyun Gongcheng Xuebao, 2023
The analysis of crack initiation and instability propagation of dam concrete needs to simulate the weak discontinuity between aggregate and mortar as accurately as possible.
QI Cuige, QIU Liting, MA Fuheng, ZHANG Zhan, LI Ziyang   +4 more
doaj   +1 more source

Potential for the use of reconstructed IASI radiances in the detection of atmospheric trace gases [PDF]

Atmospheric Measurement Techniques, 2010
Principal component (PC) analysis has received considerable attention as a technique for the extraction of meteorological signals from hyperspectral infra-red sounders such as the Infrared Atmospheric Sounding Interferometer (IASI) and the Atmospheric ...
N. C. Atkinson, F. I. Hilton, S. M. Illingworth, J. R. Eyre, T. Hultberg   +4 more
doaj   +1 more source