Results 21 to 30 of about 169,141 (219)

Three-Dimensional Separation and Characterization of Fractures in X-Ray Computed Tomographic Images of Rocks

Frontiers in Earth Science, 2020
Open fractures can affect petrophysical properties of their host rock masses, as well as fluid transport and storage, so characterization of them is important to both industrial and research scientists.
Francesco Cappuccio, Virginia G. Toy, Virginia G. Toy, Steven Mills, Ludmila Adam   +4 more
doaj   +1 more source

Cognitive Communications System for Ultra-Low Size, Weight and Power (SWAP) Attributable Platforms

IEEE Access, 2022
Communications resiliency and data distribution assurance has been compromised in highly competitive, dynamic, and stressing environments with the introduction of off the shelf, high performing jammers.
Suzanna Lamar, Robert Fitting, Anura Jayasumana   +2 more
doaj   +1 more source

Impact of Supersonic Flow in Scintillator Detector Apertures on the Resulting Pumping Effect of the Vacuum Chambers

Sensors, 2023
The article describes the combination of experimental measurements with mathematical–physics analyses in flow investigation in the chambers of the scintillator detector, which is a part of the environmental scanning electron microscope.
Jiří Maxa, Vilém Neděla, Pavla Šabacká, Tomáš Binar   +3 more
doaj   +1 more source

A Novel Procedure for Coupled Simulation of Thermal and Fluid Flow Models for Rough-Walled Rock Fractures

Energies, 2021
An enhanced geothermal system (EGS) proposed on the basis of hot dry rock mining technology has become a focus of geothermal research. A novel procedure for coupled simulation of thermal and fluid flow models (NPCTF) is derived to model heat flow and ...
Feng Xiong, Chu Zhu, Qinghui Jiang
doaj   +1 more source

The Accuracy of 3D Mesh Generation of Neuralangelo Versus Photogrammetry and LiDAR Technology

IEEE Access
Photogrammetry and LiDAR have become an essential tool for preserving evidence by creating a point cloud of objects such as vehicles and environments. While effective, these methods often struggle with capturing fine details during the mesh generation ...
Ali Farhat, A. Sattar, Alyssa Visalli, Brian Jones   +3 more
doaj   +1 more source

Retinal pigment epithelium aperture: A late-onset complication in adult-onset foveomacular vitelliform dystrophy

Indian Journal of Ophthalmology, 2018
Purpose: The purpose of the study was to report aperture of retinal pigment epithelium (RPE) as a late complication and an unreported finding during the natural course of adult-onset foveomacular vitelliform dystrophy (AFVD).
Reema Bansal, Sonam Yangzes, Ramandeep Singh, Deeksha Katoch, Mangat R Dogra, Vishali Gupta, Amod Gupta   +6 more
doaj   +1 more source

PENGHILANGAN SWELL NOISE DAN LINIER NOISE PADA DATA SEISMIK 2D MARINE HIGH RESOLUTION PADA LINTASAN “AF” MENGGUNAKAN METODE SWNA, F-K FILTER DAN TAU-P TRANSFORM

JGE, 2020
Research have been done about noise removal caused by environment (swell noise) and linear noise on high frequency 2D seismic data on line “AF” using swell noise attenuation (SWNA) method, f-k filter and tau-p transformation.
Achmad Subari, Syamsurijal Rasimeng, Nando Liven Konstanta   +2 more
doaj   +1 more source

Efficient and simple simulation method for matching stress‐permeability test results

Energy Science & Engineering, 2022
In the process of pressure‐relief mining in high gas coal seams and hydraulic fracturing of deep coalbed methane, a large number of irregular fractures are generated inside the coal, which becomes the main path for gas migration.
Tong Zhang, Cun Zhang, Ziyu Song
doaj   +1 more source

Communication Aspects of Visible Light Positioning (VLP) Systems Using a Quadrature Angular Diversity Aperture (QADA) Receiver

Sensors, 2020
Visible light positioning (VLP) is a promising indoor localization system in which light emitting diode (LED) luminaires are used as positioning beacons.
Mohammed M. A. Mohammed, Cuiwei He, Stefanie Cincotta, Adrian Neild, Jean Armstrong   +4 more
doaj   +1 more source

Deep Learning-Based Electric Field Enhancement Imaging Method for Brain Stroke

Sensors
In clinical settings, computed tomography (CT), magnetic resonance imaging (MRI), or positron emission tomography (PET) are commonly employed in brain imaging to assist clinicians in determining the type of stroke in patients.
Tong Zuo, Lihui Jiang, Yuhan Cheng, Xiaolong Yu, Xiaohui Tao, Yan Zhang, Rui Cao   +6 more
doaj   +1 more source