Results 71 to 80 of about 28,914 (258)

Spectral Tuning of Hyperbolic Shear Polaritons in Monoclinic Gallium Oxide via Isotopic Substitution

open access: yesAdvanced Materials, EarlyView.
Spectral tuning of highly directional hyperbolic shear polaritons is realized via isotopic substitution of 16O to 18O in monoclinic β$\beta$‐phase gallium oxide. A red‐shift of almost 40 cm−1 is experimentally demonstrated with near‐field imaging, corroborated by the permittivity change extracted from far‐field experiments and density functional theory.
Giulia Carini   +28 more
wiley   +1 more source

Optimization of Tillage Operation Parameters to Enhance Straw Incorporation in Rice-Wheat Rotation Field

open access: yesAgriculture
In the rice-wheat system, using straw for soil incorporation provides better soil health and improves agricultural production. The experiment was performed in Babaiqiao town, Jiangsu Province, China’s Luhe District, Nanjing City, in June 2024 using a ...
Sagni B. Miressa   +3 more
doaj   +1 more source

Structured Light Profilometry on m-PTC

open access: yesEnergies, 2020
In concentrating solar systems, it is essential to study the optical losses of the collectors. A fundamental parameter is the intercept factor, namely, the fraction of sunrays reflected by the concentrator that reaches the receiver.
Gianluca Marotta   +5 more
doaj   +1 more source

An improved continuous compositional-spread technique based on pulsed-laser deposition and applicable to large substrate areas

open access: yes, 2003
A new method for continuous compositional-spread (CCS) thin-film fabrication based on pulsed-laser deposition (PLD) is introduced. This approach is based on a translation of the substrate heater and the synchronized firing of the excimer laser, with the ...
C. M. Rouleau   +10 more
core   +1 more source

Designing pulse laser surface modification of H13 steel using response surface method [PDF]

open access: yes, 2011
This paper presents a design of experiment (DOE) for laser surface modification process of AISI H13 tool steel in achieving the maximum hardness and minimum surface roughness at a range of modified layer depth.
Aqida, S.N.   +2 more
core   +1 more source

Electrically Assisted Thermal Stamping of Tunable Carbon‐Based Nanofilms for Direct Fabrication of Hydrophobic, Energy Harvesting, and Sensing Devices

open access: yesAdvanced Materials, EarlyView.
Schematic illustration of the electrically assisted thermal stamping (EATS) method for direct fabrication of carbon‐based nanofilms and their multifunctional applications. Localized Joule heating triggers simultaneous exfoliation, reduction, and fluoropolymer incorporation under ambient conditions, yielding tunable carbon‐based thin‐film coatings ...
Byungseok Seo   +9 more
wiley   +1 more source

Piezoelectric Stimulation of Neural Cells: Exploring the Synergistic Potential of Hybrid Scaffolds for Enhanced Regeneration

open access: yesAdvanced Materials Interfaces, EarlyView.
Hybrid piezoelectric scaffolds offer a promising route for Central Nervous System regeneration by combining structural and electrical cues to support neural stem cell growth. This review highlights their potential to overcome current challenges in neural tissue engineering by exploring porous hybrid materials, their biological interactions, and ...
Heather F. Titterton   +2 more
wiley   +1 more source

Influence of laser spot size at diffuser plane on the longitudinal spatial coherence function of optical coherence microscopy system

open access: yes, 2019
Coherence properties and wavelength of light sources are indispensable for optical coherence microscopy/tomography as they greatly influence the signal to noise ratio, axial resolution, and penetration depth of the system.
Ahmad, Azeem   +5 more
core   +1 more source

Enhancing Grayscale E‐Beam Lithography: Thermal Treatment of Novolak‐Based Resist for 3D Nanostructures

open access: yesAdvanced Materials Interfaces, EarlyView.
Surface roughness and chemistry of novolak‐based grayscale resists are dependent on both exposure dose and post‐exposure thermal treatment. The observed trends align with the viscoelastic phase separation model and underscore the need to consider both thermodynamic and kinetic factors in resist processing. By tailoring thermal treatment, it is possible
Rahul Singh   +4 more
wiley   +1 more source

Improvement of anal sphincter function before preventive stoma closure: modern options

open access: yesРоссийский журнал гастроэнтерологии, гепатологии, колопроктологии, 2015
Aim of investigation. To investigate options of improvement of anal sphincter function of defunctioning loop by BFT and tibial nerve stimulation.Material and methods.
O. Yu. Fomenko   +6 more
doaj  

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