Results 51 to 60 of about 1,496 (214)

Technology Progress in High-Frequency Electromagnetic In Situ Thermal Recovery of Heavy Oil and Its Prospects in Low-Carbon Situations

open access: yesEnergies
Heavy oil resources are abundant globally, holding immense development potential. However, conventional thermal recovery methods such as steam injection are plagued by high heat loss, substantial carbon emissions, and significant water consumption ...
Yang Yang   +8 more
doaj   +1 more source

Metasurface-Based Cylindrical Lenses and Their Antenna Gain Enhancement

open access: yesInternational Journal of Antennas and Propagation, 2020
Electromagnetic metasurface lenses with the characteristic of being conformal to a cylindrical geometry are presented in this study. Based on the formulated principle of the cylindrical metasurface lens operating with transmission or reflection mode, the
Yuping Shang, Wenjun Zhou, Cheng Liao
doaj   +1 more source

Molecular Rotors: From Newtonian Fluids to Functional Materials as Viscosity and Temperature Sensing Tools

open access: yesAdvanced Functional Materials, EarlyView.
Molecular rotors are fluorescent molecules that are sensitive to viscosity and temperature variations in the environment. They exhibit a direct correlation between fluorescence and viscosity within Newtonian fluids. However, this correlation becomes less straightforward in complex systems.
Flavia Di Scala   +6 more
wiley   +1 more source

Numerical Analysis of Laser-Excited SAM-Coated Magnetic Nanoparticles for Electromagnetic Field Enhancement in Optical Gas Sensing

open access: yesSensors
This study investigates the electromagnetic field enhancement and optical response of self-assembled monolayer (SAM)-coated iron nanoparticles under laser excitation, with the aim of advancing optical gas sensing technologies. Using finite element method
Jong Hyun Kim, Hae Woon Choi
doaj   +1 more source

Effect of Crystallizer Electromagnetic Stirring on Solidification Organization and Segregation of Round Billets Q355NE Φ800 mm

open access: yesTeshugang, 2023
Taking a steel mill Φ800 mm round billet continuous casting machine as the research object, the influence of crystallizer electromagnetic stirring current and frequency on electromagnetic torque and Q355NE steel round billet equiaxed crystal rate and ...
Zhou Weiji   +4 more
doaj  

Spin Dynamics in the van der Waals Ferromagnet CrTe2 Engineered by Niobium Doping

open access: yesAdvanced Functional Materials, EarlyView.
Spin‐dynamic magnetic properties of van der Waals (vdW) ferromagnet 1T‐CrTe2 are tuned via niobium (Nb) as Cr1‐xNbxTe2 (x = 0–0.2). Nb doping enables wide‐band tuning of the resonance frequency from 40 GHz down to the few‐GHz regime, accompanied by a moderate increase in the Gilbert damping from ∼0.066 to ∼0.14.
Dhan Raj Lawati   +16 more
wiley   +1 more source

Circular dichroism enhancement induced by surface plasmons in the structure of a metallic grating coated by chiral TDBCs

open access: yesAIP Advances, 2023
We investigate the enhancement of the circular dichroism (CD) spectrum in a metallic grating by coating it with chiral TDBCs. Using the finite difference time domain method, we obtain reflection spectra and CD spectra.
Yunfei Zou, Gang Song, Hongbin Jin
doaj   +1 more source

Nanoplatforms for Sentinel and Tumor‐Draining Lymph Node Mapping: From Visualization to Pathway‐Informed Staging

open access: yesAdvanced Healthcare Materials, EarlyView.
Lymphotropic nanoplatforms integrate multimodal imaging with therapeutic guidance to map sentinel and tumor‐draining lymph nodes, revealing functional drainage, metastatic involvement, and nodal accessibility, while providing mechanistic insight to support precision surgical and therapeutic interventions.
Xu Chen   +7 more
wiley   +1 more source

Intelligent Orthopedics: Machine Learning in Diagnosis of Bone Disease, Implants, and Bone Health Monitoring

open access: yesAdvanced Healthcare Materials, EarlyView.
Efficient recovery from traumatic or degenerative diseases is a great challenge, even after all the advancements in bone and cartilage regeneration. Machine learning (ML) algorithms have presented opportunities to enhance these aspects by accurately analyzing imaging data.
Maryam Kamaei   +9 more
wiley   +1 more source

Insulating yet terahertz-shielding Epoxy/MXene composites for impact-resistant electronic encapsulation

open access: yesPolymer Testing
The development of electronic encapsulation materials for munitions requires a unique combination of high impact resistance, effective electromagnetic interference (EMI) shielding, and reliable electrical insulation.
Ruizhi Wang   +7 more
doaj   +1 more source

Home - About - Disclaimer - Privacy