Results 1 to 10 of about 675,740 (311)

Electromagnetohydrodynamic (EMHD) Flow in a Microchannel with Random Surface Roughness [PDF]

open access: yesMicromachines, 2023
This study investigates the effect of small random transverse wall roughness on electromagnetohydrodynamic (EMHD) flow is in a microchannel, employing the perturbation method based upon stationary random function theory.
Nailin Ma, Yanjun Sun, Yongjun Jian
doaj   +2 more sources

Application of random forest for modelling of surface water salinity

open access: yesAin Shams Engineering Journal, 2022
Modeling surface water quality using artificial intelligence-based models is essential in projecting suitable mitigation measures. However, it remains a challenge and requires further research to enhance the modeling accuracy.
Mohsin Ali Khan   +7 more
doaj   +3 more sources

Surface-Emitting Perovskite Random Lasers for Speckle-Free Imaging

open access: yesACS Nano, 2019
Random lasers have been ideal illumination sources for speckle-free and high-speed imaging. Despite their successes, the real applications of random lasers are facing a long-standing challenge, i.e., the cumbersome size of the illuminating system. Herein,
, Nan Zhang, Yubin Fan
exaly   +2 more sources

Statistical and Fractal Analysis of Random Height Function

open access: yesCommunications, 2017
Nanostructured semiconductor surfaces are commonly used for suppression of the light reflection. We prepared several kinds of surface structures on silicon substrate and analyzed the properties of the random height function used for the description of ...
Stanislav Jurecka, Maria Jureckova
doaj   +2 more sources

Relationship between Surface Roughness and Touch Perception on the Surfaces with Randomly Spaced, Irregular Features [PDF]

open access: yes한국정밀공학회지, 2021
The objective of the present study was to investigate the relationship between surface roughness and touch perception of surfaces with randomly spaced, irregular features. Two sets of specimens with top surfaces consisting of triangular peaks and valleys
Jiyeon Jung, Jihong Hwang
doaj   +1 more source

Surface passivation of random alloy AlGaAsSb avalanche photodiode

open access: yesElectronics Letters, 2023
AlGaAsSb attracts significant interest for near‐infrared avalanche photodiodes (APD). The authors report a two‐order reduction in the dark current and a six‐time enhancement of gain in random alloy (RA) AlGaAsSb APD that is surface passivated by ...
Peng Cao   +7 more
doaj   +1 more source

Machine Learning Methods for the Prediction of Abraded Butadiene-Styrene Rubber Surface Roughness

open access: yesMedžiagotyra, 2023
The aim of this investigation was to evaluate the ability to predict the roughened surface area of soft polymeric materials using the machine learning method. Random forest and extremely random forest machine learning methods have been applied to predict
Loreta MAČĖNAITĖ   +2 more
doaj   +1 more source

Analyzing Vortex Light Beam Scattering Characteristics from a Random Rough Surface

open access: yesPhotonics, 2023
The propagation and scattering of vortex light beams in complex media have significant implications in the fields of laser imaging, optical manipulation, and communication. This paper investigates the scattering characteristics of vortex light beams from
Xiaoxiao Zhang   +3 more
doaj   +1 more source

In Situ Observation-Constrained Global Surface Soil Moisture Using Random Forest Model

open access: yesRemote Sensing, 2021
The inherent biases of different long-term gridded surface soil moisture (SSM) products, unconstrained by the in situ observations, implies different spatio-temporal patterns.
Lijie Zhang   +6 more
doaj   +1 more source

Urban Impervious Surface Extraction Based on Multi-Features and Random Forest

open access: yesIEEE Access, 2020
Impervious surface data has become an indicator of the degree of urbanization and the environmental quality, which inspires the widely use of remote sensing technology in extracting impervious surface.
Xiaojiao Guo   +4 more
doaj   +1 more source

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