Results 21 to 30 of about 2,854,498 (291)

Numerical Investigation of GaN HEMT Terahertz Detection Model Considering Multiple Scattering Mechanisms

open access: yesNanomaterials, 2023
GaN high-electron-mobility transistor (HEMT) terahertz (THz) detectors have been widely studied and applied in the past few decades. However, there are few reports about the influence of GaN/AlGaN heterostructure material properties on the detection ...
Qingzhi Meng   +10 more
doaj   +1 more source

A High-Performance Supercapacitor Based on Nitrogen-Doped Porous Carbon Derived from Cycas Leaves

open access: yesInternational Journal of Electrochemical Science, 2019
In this work, we proposed a new way to synthesize nitrogen-doped porous carbon materials. Nitrogen-doped porous carbon materials were prepared using cycas leaves as the carbon source and urea as the nitrogen source.
Chaochao Xu   +9 more
doaj   +1 more source

Research progress in titanium alloy in the field of orthopaedic implants

open access: yesCailiao gongcheng, 2021
Owing to the excellent biocompatibility and corrosion resistance of titanium and its alloys in the biological environments, they are one of the best materials in the medical implant applications.
LIU Jian-qiao   +3 more
doaj   +1 more source

Material Property-Estimate Technique Based on Natural Frequency for Updating Finite Element Model of Orthotropic Beams

open access: yes한국해양공학회지, 2020
Composite materialsuch as glass-fiber reinforced plastic and carbon-fiber reinforced plastic (CFRP) shows anisotropic property and have been widely used for structural members and outfitings of ships.
Kookhyun Kim   +5 more
doaj   +1 more source

Repairing Damaged Screen Pipes with Tube Hydroforming: Experiments and Feasibility Analysis

open access: yesMachines, 2022
During oil-well production, there are often cracks, breaks, and perforation corrosion on the screen pipe that can significantly deteriorate sand control and pipe strength. To repair damaged screen pipes, we developed a technique originating from the tube
Shufeng Liu   +5 more
doaj   +1 more source

Structural Material Property Tailoring Using Deep Neural Networks

open access: yes, 2019
Advances in robotics, artificial intelligence, and machine learning are ushering in a new age of automation, as machines match or outperform human performance.
Bergerhoff G.   +12 more
core   +1 more source

Anisotropic enhanced backscattering induced by anisotropic diffusion [PDF]

open access: yes, 2004
The enhanced backscattering cone displaying a strong anisotropy from a material with anisotropic diffusion is reported. The constructive interference of the wave is preserved in the helicity preserving polarization channel and completely lost in the ...
Bret, B.P.J., Lagendijk, A.
core   +4 more sources

Research progress on the comfort of shaping clothing

open access: yesXi'an Gongcheng Daxue xuebao, 2021
In order to further explore the shaping effect and wearing comfort of shaping clothing, three methods for evaluating the comfort of shaping clothing are summarized and analyzed, namely psychological evaluation, physiological evaluation, and physical ...
Jie ZHOU, Yingli ZHANG, Qian MAO
doaj   +1 more source

Correlation length and negative phase velocity in isotropic dielectric-magnetic materials [PDF]

open access: yes, 2006
A composite material comprising randomly distributed spherical particles of two different isotropic dielectric-magnetic materials is homogenized using the second-order strong-property-fluctuation theory in the long-wavelength approximation.
Akhlesh Lakhtakia   +3 more
core   +3 more sources

Properties of Engineered Wood Flooring with Cold-pressing and Emulsion Polymer Isocyanate Adhesive

open access: yesBioResources, 2023
For the sake of improving the product quality and economy, a series of cold-pressing experiments were carried out to investigate the material properties of engineered wood flooring with emulsion polymer isocyanate adhesive.
Guoping Yang, Xunuo Wang, Dinglan Zhong
doaj   +2 more sources

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