Results 71 to 80 of about 4,895,720 (245)

Enhanced Deep Learning Method for Natural Gas Pipeline Flow Prediction Based on Integrated Learning

open access: yesIEEE Access
Urban gas pipelines must contend with situations such as road construction and excavation for house building, where short-term emergencies leading to large-scale leaks pose significant risks to both people and the environment.
Yunhao Li, Changjing Sun, Qiang Li
doaj   +1 more source

Numerical simulation on gas drainage and borehole arrangement parameters of bedding borehole in a coal mine

open access: yesGong-kuang zidonghua, 2018
Based on comprehensive consideration of gas flow inertia and slippage effect, a gas drainage flow model was established. Based on engineering background of 12150 coal face of the No.15 coal seam in Songhe Coal Mine, the distribution law of gas pressure ...
ZHANG Bo, XIE Xionggang, XU Shiqing
doaj   +1 more source

Microstructure Modification of Additively Manufactured Mo–9Si–8B by Annealing and Its Effects on High‐Temperature Mechanical Properties

open access: yesAdvanced Engineering Materials, EarlyView.
Postbuild annealing systematically modifies the phase fractions and morphology of EB‐PBF processed Mo–9Si–8B. Quantitative microstructure–property correlations reveal how controlled phase evolution enhances high‐temperature compressive strength and creep resistance.
Christopher Schmidt   +5 more
wiley   +1 more source

Robust spatially resolved pressure measurements using MRI with novel buoyant advection-free preparations of stable microbubbles in polysaccharide gels [PDF]

open access: yes, 2008
MRI of fluids containing lipid coated microbubbles has been shown to be an effective tool for measuring the local fluid pressure. However, the intrinsically buoyant nature of these microbubbles precludes lengthy measurements due to their vertical ...
Galvosas, Petrik   +15 more
core   +1 more source

Soil column tests and numerical simulations of moisture-gas coupled flow in a loess cover

open access: yesYantu gongcheng xuebao, 2017
The earthen final covers based on the water storage and release principle have a promising application in the landfills in arid and semi-arid areas.
ZHAN Liang-tong 1,2, QIU Qing-wen 1,2, YANG Yi-biao 3, XU Wen-jie 1,2, CHEN Yun-min 1,2
doaj   +1 more source

Investigating the Effect of Inclination Angle and the Influence of Scan Parameters on the Appearance and Thermal and Mechanical Properties of Filigree Tension Rods of LPBF‐Manufactured NiTi Shape‐Memory Alloys

open access: yesAdvanced Engineering Materials, EarlyView.
This article investigates the dependence of the properties on the manufacturing orientation in the form of the inclination angle to the build plate of LPBF‐fabricated NiTi rods with a diameter of 150–220 µm. Metallographic, chemical, thermal, and mechanical characterization show behavior under identical manufacturing conditions that ranges from ...
Sandra Herzig   +2 more
wiley   +1 more source

Inflammation Unchecked: Concurrent Kawasaki Disease and Stevens‐Johnson Syndrome in an 18‐Month‐Old Child

open access: yes
Arthritis Care &Research, EarlyView.
Catherine Deffendall   +6 more
wiley   +1 more source

Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials

open access: yesAdvanced Engineering Materials, EarlyView.
Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
wiley   +1 more source

Dynamic evolution characteristics and microscopic mechanisms of contact between gas-bearing coal and water

open access: yesMeitan xuebao
The effectiveness of coal seam water injection in controlling gas and dust is closely related to the wetting effect of water on the coal. A dynamic wetting process is formed after the contact between gas-bearing coal and water, which is crucial for ...
Jiwei YUE   +8 more
doaj   +1 more source

Decoding multicomponent hydrochemical anomalies: a synergistic detection model for earthquake forecasting [PDF]

open access: yesHydrology and Earth System Sciences
The intersection of the Xiaojiang Fault and the Red River Fault at the southeastern margin of the Tibetan Plateau experiences intense tectonic activity, where repeated earthquakes cause variations in thermal spring hydrochemistry.
W. Shao   +15 more
doaj   +1 more source

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