Results 11 to 20 of about 657,845 (275)

OPTIMALISASI PENCITRAAN STRUKTUR BAWAH PERMUKAAN MENGGUNAKAN METODE KIRCHHOFF PRE-STACK TIME MIGRATION PADA DATA SEISMIK LAUT WETAR

open access: yesJGE, 2020
Migration is one of the stages in seismic data processing aimed at returning the diffraction effect to the actual reflector point. The processing of a seismic data is adjusted to the existing problems in the data itself, so the accuracy in using the ...
Syamsurijal Rasimeng   +4 more
doaj   +1 more source

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

open access: yesFrontiers 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   +4 more
doaj   +1 more source

An Algorithm for Precise Aperture Photometry of Critically Sampled Images [PDF]

open access: yes, 2013
We present an algorithm for performing precise aperture photometry on critically sampled astrophysical images. The method is intended to overcome the small-aperture limitations imposed by point-sampling.
Bickerton, Steven, Lupton, Robert
core   +1 more source

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

open access: yesIEEE 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   +2 more
doaj   +1 more source

Effects of fracture aperture and roughness on hydraulic and mechanical properties of rocks : implication of seismic characterization of fractured reservoirs [PDF]

open access: yes, 2005
Roughness and aperture are two important characteristic parameters controlling fluid flow in natural joints and fractures. It has been demonstrated by many authors that knowledge of roughness does not directly lead to that of aperture, and aperture ...
Liu, Enru
core   +1 more source

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

open access: yesSensors, 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   +3 more
doaj   +1 more source

A Close Companion Search Around L Dwarfs Using Aperture Masking Interferometry and Palomar Laser Guide Star Adaptive Optics [PDF]

open access: yes, 2010
We present a close companion search around 16 known early L dwarfs using aperture masking interferometry with Palomar laser guide star adaptive optics (LGS AO).
Angione, John   +24 more
core   +3 more sources

Aperture [PDF]

open access: yes, 2018
Abstractangulaperturate: pollen grain with an angular outline where the apertures are located at the ...
Halbritter, Heidemarie   +8 more
openaire   +1 more source

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

open access: yesEnergies, 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

open access: yesIEEE 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   +3 more
doaj   +1 more source

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