Results 51 to 60 of about 50,809 (304)

State‐of‐the‐Art, Insights, and Perspectives for MOFs‐Nanocomposites and MOF‐Derived (Nano)Materials

Advanced Materials, EarlyView.
Different approaches to MOF‐NP composite formation, such as ship‐in‐a‐bottle, bottle‐around‐the‐ship and in situ one‐step synthesis, are used. Owing to synergistic effects, the advantageous features of the components of the composites are beneficially combined, and their individual drawbacks are mitigated.
Stefanos Mourdikoudis, Subhajit Dutta, Saqib Kamal, Sergio Gómez‐Graña, Isabel Pastoriza‐Santos, Stefan Wuttke, Lakshminarayana Polavarapu   +6 more
wiley   +1 more source

Energy transport faster than light in good conductors and superconductors

, 2012
People need a model to study tachyons whose prediction can be tested easily. The dispersion relation w^2=k^2C^2-a^2C^2 of a low-frequency electromagnetic field in good conductors is equivalent to the energy-momentum equation E^2=p^2C^2-m^2C^4 of a ...
Biretta, Chen, Feinberg, Rees, Smith, Stenner, Whitney, Zhong-Yue Wang   +7 more
core   +1 more source

Recent Advances in Stimuli‐Responsive Materials and Soft Robotic Actuators for Bioelectronic Medicine

Advanced Materials, EarlyView.
This review explores the integration of responsive materials and soft robotic actuators with implantable electronics to address key challenges in bioelectronic medicine. By enabling shape actuation, these technologies improve deployment, adaptability, and accuracy in minimally invasive procedures.
Chaoqun Dong, George G. Malliaras
wiley   +1 more source

Numerical modelling of magnetic characteristics of ferrite core taking account of both eddy current and displacement current

Heliyon, 2019
In the magnetic field analysis of magnetic devices using a ferrite core, such as a pulse transformer, the frequency-domain analysis is often carried out using the measured complex permeability under different frequency range.
Mohendro Kumar Ghosh, Yanhui Gao, Hiroshi Dozono, Kazuhiro Muramatsu, Weimin Guan, Jiaxin Yuan, Cuihua Tian, Baichao Chen   +7 more
doaj  

Influence of inner and outer walls electromagnetic properties on the onset of a stationary dynamo [PDF]

, 2009
To study the onset of a stationary dynamo in the presence of inner or outer walls of various electromagnetic properties, we propose a simple 1D-model in which the flow is replaced by an alpha effect. The equation of dispersion of the problem is derived analytically.
arxiv   +1 more source

Frequency converter implementing an optical analogue of the cosmological redshift

, 2010
According to general relativity, the frequency of electromagnetic radiation is altered by the expansion of the universe. This effect--commonly referred to as the cosmological redshift--is of utmost importance for observations in cosmology.
Balazs, Ben Craps, Budko, Cai, Cummer, Farhat, Felice, Genov, Irina Veretennicoff, Jacob, Kwon, Leonhardt, Leonhardt, Leonhardt, Narimanov, Pendry, Philbin, Philippe Tassin, Plebanski, Rahm, Rahm, Smith, Soukoulis, Valentine, Vincent Ginis, Ward, Zhang   +26 more
core   +1 more source

From Mechanoelectric Conversion to Tissue Regeneration: Translational Progress in Piezoelectric Materials

Advanced Materials, EarlyView.
This review highlights recent progress in piezoelectric materials for regenerative medicine, emphasizing their ability to convert mechanical stimuli into bioelectric signals that promote tissue repair. Key discussions cover the intrinsic piezoelectric properties of biological tissues, co‐stimulation cellular mechanisms for tissue regeneration, and ...
Xinyu Wang, Sílvio Terra Stefanello, Victor Shahin, Yun Qian   +3 more
wiley   +1 more source

Influence of Demagnetization Effect on Giant Magneto Impedance of soft Ferromagnetic Metal [PDF]

, 2009
The large change in electromagnetic impedance in ferromagnetic state of soft magnetic metals in presence of biasing magnetic field is associated with change in screening of electromagnetic field. The screening depends on the permeability of the metal. Apart from dependence on intrinsic properties of metal the permeability depends on size of the sample.
arxiv   +1 more source

Photonic Nanomaterials for Wearable Health Solutions

Advanced Materials, EarlyView.
This review discusses the fundamentals and applications of photonic nanomaterials in wearable health technologies. It covers light‐matter interactions, synthesis, and functionalization strategies, device assembly, and sensing capabilities. Applications include skin patches and contact lenses for diagnostics and therapy. Future perspectives emphasize AI‐
Taewoong Park, Jung Woo Leem, Young L. Kim, Chi Hwan Lee   +3 more
wiley   +1 more source

Acoustic Moiré Flat Bands in Twisted Heterobilayer Metasurface

Advanced Materials, EarlyView.
This research proposes a heterobilayer moiré acoustic metasurface using two distinct lattice structures. The heterobilayer design contributes to divergent dispersion curves for the upper and lower layers and allows for greater flexibility in tuning their hybridization through interlayer twisting.
Shida Fan, Chenglin Han, Kuan He, Liang Bai, Li‐Qun Chen, Huaitao Shi, Chen Shen, Tianzhi Yang   +7 more
wiley   +1 more source