Results 71 to 80 of about 49,905 (304)

Anti‐Slip Material‐Based Strategies and Approaches

open access: yesAdvanced Materials Technologies, EarlyView.
This review highlights the principle mechanisms of slipping at the microscale, linking contact mechanics with a friction behavior model for surface interfaces. Main strategies to develop anti‐slip properties to the surfaces are discussed alongside standardized testing approaches.
Sogand Abbaspoor‐Zanjani   +3 more
wiley   +1 more source

In vitro Shear Bond Strength of Orthodontic Brackets with Different Etching Techniques

open access: yesJournal of Pharmacy and Bioallied Sciences
Objective: To evaluate and compare the shear bond strength of orthodontic brackets bonded to permanent teeth using three different etching techniques. Materials and Methods: 30 extracted premolar teeth were divided and treated with various etching agents:
MD Imran   +5 more
doaj   +1 more source

Open acid dissolution-Ammonia solution extraction-ICP OES rapid determination of 7 trace metal elements in soil.

open access: yesPLoS ONE, 2023
To overcome the corrosion of hydrofluoric acid on the ICP OES injection system in the acid dissolution system, this paper makes some improvements based on the traditional open digestion.
Jiahan Wang   +5 more
doaj   +1 more source

Acid Polishing of Lead Crystal Glass [PDF]

open access: yes, 2008
The industrial partner manufactures high quality lead crystal glassware. The cutting of decorative features in the glass damages the surface and the cuts are optically opaque; to restore transparency, the glass is polished in a solution of hydrofluoric ...
Fowler, Andrew   +9 more
core  

Chemical functionalization of graphene

open access: yes, 2009
Experimental and theoretical results on chemical functionalization of graphene are reviewed. Using hydrogenated graphene as a model system, general principles of the chemical functionalization are formulated and discussed.
Boukhvalov, D. W., Katsnelson, M. I.
core   +1 more source

Tunable Extraordinary Optical Transmission in the Long‐Wavelength Infrared Range Using Electrostatic MEMS Actuation

open access: yesAdvanced Materials Technologies, EarlyView.
A MEMS‐integrated metamaterial filter enables continuous, low‐voltage spectral tuning in the long‐wavelength infrared (LWIR). The device employs extraordinary optical transmission in a dual suspended metasurface stack, where electrostatic actuation precisely controls the intermembrane air gap.
Oleg Bannik   +6 more
wiley   +1 more source

Hydrogen Fluoride Capture by Imidazolium Acetate Ionic Liquid

open access: yes, 2015
Extraction of hydrofluoric acid (HF) from oils is a drastically important problem in petroleum industry, since HF causes quick corrosion of pipe lines and brings severe health problems to humanity.
Chaban, Vitaly
core   +1 more source

Steps toward accurate large-area analyses of Genesis solar wind samples: evaluation of surface cleaning methods using total reflection X-ray fluorescence spectrometry [PDF]

open access: yes, 2011
Total reflection X-ray fluorescence spectrometry (TXRF) was used to analyze residual surface contamination on Genesis solar wind samples and to evaluate different cleaning methods.
Burnett, Donald S.   +3 more
core   +1 more source

Micromachined Double‐Membrane Mechanically Tunable Metamaterial for Thermal Infrared Filtering

open access: yesAdvanced Photonics Research, Volume 6, Issue 5, May 2025.
Herein, a mechanically tunable double‐layer plasmonic metamaterial leveraging the extraordinary optical transmission effect observed in subwavelength arrays of openings within thin metal layers is presented. The concept is experimentally validated by integrating the proposed metamaterial structure into an electrostatic parallel‐plate actuator to create
Oleg Bannik   +7 more
wiley   +1 more source

Determination of silicon dioxide in fluorite by ICP OES with closed digestion and boric acid complex reaction.

open access: yesPLoS ONE
Fluorite is widely utilized in the new energy, semiconductor, high-end manufacturing, and steelmaking industries. The silicon dioxide (SiO₂) content is critical for both the quality evaluation of fluorite and the design of beneficiation processes ...
Xiao Wang   +6 more
doaj   +1 more source

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