Results 91 to 100 of about 177,134 (289)

Progress of MXenes‐based responsive materials for soft sensors and actuators

open access: yesResponsive Materials, EarlyView.
MXene, a promising 2D material, excels at mimicking human sensing and feedback system, making it ideal for intelligent robots. This review first covers its structure, properties, and synthesis. It then summarizes recent MXene‐based sensors and actuator.
Peidi Zhou   +10 more
wiley   +1 more source

Grain refinement and laser energy distribution during laser oscillating welding of Invar alloy

open access: yesMaterials & Design, 2020
Laser oscillating welding method was employed to welding of Invar alloy so as to achieve grain refinement and decrease internal defects. Effects of frequency and amplitude of beam oscillation with sinusoidal trajectory on weld appearance and ...
Zhenguo Jiang   +6 more
doaj   +1 more source

Development of 4D printing and its performance testing methods

open access: yesResponsive Materials, EarlyView.
This paper reviews the molding methods of 4D printing and its applications in various fields, with emphasis on 4D printing performance testing methods. Abstract 4D printing is a cutting‐edge additive manufacturing technology that introduces the time dimension, allowing printed objects to have dynamic, changeable properties, functions or shapes ...
Guiwei Li   +8 more
wiley   +1 more source

Analysis of Fiber optic sensor embedding in metals by automatic and manual TIG welding [PDF]

open access: yes, 2019
In this paper, the embedding of fiber optic sensors in metals, by using both automatic and manual Tungsten Inert Gas welding (TIG) is discussed for nickel- and copper-coated Fiber Bragg Gratings (FBG) written into an optical fiber, as embedding such ...
Fraga, S.   +5 more
core   +1 more source

Electrospun PAN Membrane Loaded with AgInP2Se6 Nanosheets for Triboelectric Energy Harvesting

open access: yesSmall, EarlyView.
Exfoliated AgInP2Se6 nanosheets are incorporated into a polyacrylonitrile (PAN) polymer matrix by electrospinning and applied for the first time in a triboelectric nanogenerator (TENG). The hybrid membrane delivers strong electrical output and exhibits reversible humidity sensitivity, responding rapidly to changes in relative humidity.
Filipa M. Oliveira   +10 more
wiley   +1 more source

Depressed clad hollow optical fiber with fundamental LP01 mode cut-off

open access: yes, 2006
We propose a depressed clad hollow optical fiber with fundamental (LP01) mode cut-off suitable for high power short-wavelength, especially three-level, fiber laser operation by introducing highly wavelength dependent losses at longer wavelengths. The cut-
Codemard, C.   +7 more
core   +1 more source

Quasi-monolithic mirror suspensions in ground-based gravitational wave detectors [PDF]

open access: yes, 2018
At the commencement of a new era in astrophysics, with added information from direct detections of gravitational-wave (GW) signals, this paper is a testament to the quasi-monolithic suspensions of the test masses of the GW detectors that have enabled the
van Veggel, Anna-Maria
core   +1 more source

To Dye or Not to Dye: Unraveling the Impact of Surface Chemistry on Cerium Oxide Nanoparticles–Cell Interactions

open access: yesSmall Science, EarlyView.
Fluorescent dye labeling enables nanoparticle imaging but may subtly alter their surface chemistry and biological behavior. This study compares dye‐labeled and unlabeled cerium oxide nanozymes, revealing changes in cellular uptake kinetics without affecting their final intracellular fate. Combined fluorescence and label‐free electron microscopy imaging
Kanika Dulta   +3 more
wiley   +1 more source

Study on Microstructure of Fiber Laser Welding of CoCrCuFeNi High Entropy Alloy. [PDF]

open access: yesMaterials (Basel), 2022
Li J   +8 more
europepmc   +1 more source

Laser Welding in Space [PDF]

open access: yes
Solidification type welding process experiments in conditions of microgravity were performed. The role of convection in such phenomena was examined and convective effects in the small volumes obtained in the laser weld zone were observed.
Kaukler, William F., Workman, Gary L.
core   +1 more source

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