Results 71 to 80 of about 179,553 (304)

Multifunctional photonic integrated circuit for diverse microwave signal generation, transmission and processing [PDF]

open access: yes, 2019
Microwave photonics (MWP) studies the interaction between microwave and optical waves for the generation, transmission and processing of microwave signals (i.e., three key domains), taking advantages of broad bandwidth and low loss offered by modern ...
Cao, Zizheng   +11 more
core   +2 more sources

Metamaterial Antennas Enhance MRI of the Eye and Occipital Brain

open access: yesAdvanced Materials, EarlyView.
A radiofrequency antenna platform comprising planar and bend configurations is developed, incorporating structurally integrated epsilon‐negative metamaterial unit cells to enhance MRI. These antennas enable high‐resolution in vivo human MRI of the eye, orbit, and occipital brain. Comprehensive validation, including simulations, phantom experiments, SAR,
Nandita Saha   +14 more
wiley   +1 more source

Building the gulf of opinions on the health and biological effects of electromagnetic radiation

open access: yesFrontiers in Public Health
Using events that the author was personally involved with over many years, the article attempts to explain how different views solidified over time on the health effects of electromagnetic radiation, some believing they are negligible, while others ...
Paul Héroux, Paul Héroux
doaj   +1 more source

Two-Dimensional Forward Scattering – Comparisons of Approximate and Exact Solutions [PDF]

open access: yes, 2012
Various methods for analyses of scattering are mentioned and new approximate relationships are derived. Experimental results for thin wire and several numerical simulations of forward scattering using approximate estimations, physical optics and exact ...
Fiser, O.   +3 more
core   +1 more source

Pulsed Laser‐Assisted Phase Engineering of Multimetallic Colloidal Nanocrystals With Complex Compositions

open access: yesAdvanced Materials, EarlyView.
The engineering of colloidal nanocrystals with complex compositions has emerged as a highly active area of research within nanomaterials science. This review covers key aspects of colloidal solid‐solution nanocrystal formation using pulsed laser irradiation.
Marina T. Candela   +4 more
wiley   +1 more source

Orientation Engineering of MXene Flakes

open access: yesAdvanced Materials, EarlyView.
Orientation engineering of MXene flakes refers to the transformation of disordered MXene flakes into ordered architectures with optimized multiphysical transport properties. Focusing on this topic, this review outlines key principles, characterization, fabrication strategies, and advanced applications of oriented MXene structures.
Yizhou Wang   +7 more
wiley   +1 more source

Electromagnetic Actuator with State Recognition Feature Used in Fuze

open access: yesHangkong gongcheng jinzhan, 2019
Electromagnetic actuator can realize safety state restoration function of fuze via switching on or off. In order to make fuze or safety and arming device easily obtain the information of relief safety procedure accomplishment and security status recovery
Wang Hailong, Yao Wen
doaj   +1 more source

Bioelectrical Interfaces Beyond Excitable Cells: Cancer, Aging, and Gene Expression Modulation

open access: yesAdvanced Materials Interfaces, EarlyView.
ABSTRACT The investigation of biological conductivity has evolved from its classical foundation based on ionic fluxes underpinning cardiac and neuronal excitability to a multifaceted regulator of cellular physiology. Traditional approaches for probing electrical events in living matter focused largely on action potentials recording.
Paolo Cadinu   +14 more
wiley   +1 more source

Effect of the Conductivity Variations on Computed Electric Field Induced in Learning-Based Models

open access: yesIEEE Access
Anatomical human models are extensively utilized for assessing induced electric fields due to low-frequency (LF) electromagnetic exposure. One difficulty in the LF dosimetry is that the results are often affected by numerical artifacts, which are ...
Yinliang Diao   +6 more
doaj   +1 more source

Effect of Heat Treatments on Microstructural Evolution and Tensile Properties of 15Cr12MoVWN Ferritic/Martensitic Steel

open access: yesMetals, 2020
In this study, the phase transformation temperature of 15Cr12MoVWN ferritic/martensitic steel was determined by differential scanning calorimetry to provide a theoretical basis for the design of a heat treatment process.
Tingwei Ma, Xianchao Hao, Ping Wang
doaj   +1 more source

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