Results 21 to 30 of about 27,279 (160)

Experimental Investigation on Crack Behavior and Stress Thresholds of Sandstone Containing a Square Inclusion under Uniaxial Compression

open access: yesApplied Sciences, 2020
To study the effect of strength, stiffness and inclination angle of square inclusions on failure characteristics of rock, uniaxial compression tests were carried out on prismatic sandstone containing a square hole with different filling modes and hole ...
Quanqi Zhu, Diyuan Li
doaj   +1 more source

Study on typical hole defects in AZ91D magnesium alloy prepared by low pressure lost foam casting [PDF]

open access: yesChina Foundry, 2013
The hole defects can easily occur in magnesium alloy castings that are prepared by low pressure lost foam casting (LP-LFC) process when the process parameters such as vacuum, pouring temperature and filling velocity are not properly selected.
Li Jiqiang, Zhao zhong, Fan Zitian
doaj  

A depth image restoration algorithm based on WMF-ACA

open access: yes上海师范大学学报. 自然科学版, 2021
To solve the problem of holes and noise in the depth image due to the limitation of RGBD camera hardware, a color imageguided method for filling holes in depth image was proposed. Firstly, for the boundary area of the depth image, a weighted mode filter (
SHEN Huizhong   +5 more
doaj   +1 more source

Texture Synthesis Repair of RealSense D435i Depth Images with Object-Oriented RGB Image Segmentation

open access: yesSensors, 2020
A depth camera is a kind of sensor that can directly collect distance information between an object and the camera. The RealSense D435i is a low-cost depth camera that is currently in widespread use.
Longyu Zhang, Hao Xia, Yanyou Qiao
doaj   +1 more source

An Improved Depth Image Based Virtual View Synthesis Method for Interactive 3D Video

open access: yesIEEE Access, 2019
Depth image-based rendering (DIBR) is one of the main techniques in interactive 3D video systems. But a critical problem of DIBR is that how to eliminate the holes appearing in virtual view images.
Shiping Zhu, Hao Xu, Lina Yan
doaj   +1 more source

Active-passive radial-additive friction stir repairing of mechanical hole out of dimension tolerance of AZ31 magnesium alloy

open access: yesJournal of Magnesium and Alloys, 2023
In order to avoid the depth increasing of repaired hole and eliminate the super-fine grain band in stir zone by radial-additive friction stir repairing (R-AFSR), a solid-state repairing technique of active-passive radial-additive friction stir repairing (
Hua Liu   +5 more
doaj   +1 more source

Filling in the holes

open access: yesEos, Transactions American Geophysical Union, 1995
Remove the CFCs from the atmosphere and you could regenerate the ozone layer in less than a year, according to a Stanford University civil engineer. Using a computer model that accounts for gas and aerosol chemistry, radiation and pollution, and general atmospheric circulation, Mark Jacobson has postulated that if all halogenated, ozone‐depleting ...
openaire   +1 more source

Three-dimensional backfilling mining method and engineering practice in coal mine

open access: yesMeitan xuebao
The single backfilling mining method is difficult to fully meet the requirements of complex filling engineering scenarios, special geological conditions, and precise overburden control.
Qiang ZHANG   +9 more
doaj   +1 more source

Mechanical properties and energy evolutions of burst-prone coal samples with holes and fillings

open access: yesInternational Journal of Coal Science & Technology
During the mining process of impact-prone coal seams, drilling pressure relief can reduce the impact propensity of the coal seam, but it also reduces the integrity and strength of the coal mass at the side of the roadway.
Yukai Fu   +5 more
doaj   +1 more source

Virtual View Synthesis Based on Asymmetric Bidirectional DIBR for 3D Video and Free Viewpoint Video

open access: yesApplied Sciences, 2020
Depth image-based rendering (DIBR) plays an important role in 3D video and free viewpoint video synthesis. However, artifacts might occur in the synthesized view due to viewpoint changes and stereo depth estimation errors.
Xiaodong Chen   +5 more
doaj   +1 more source

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