Results 111 to 120 of about 19,671,460 (302)

Numerical Simulation of High-Frequency Electromagnetic Fields in the Electromagnetic Strength Testing Experiments. 3-D Model.

open access: yes, 1996
: The experiment on electromagnetic strength testing of objects is considered. By mean of numerical simulation the high-frequency electromagnetic fields generation as a result of fast electron beam injection into the vacuum chamber is ...
Vasil'kov G.D., skachkov M.V.
core  

Conformal Coating and Transfer of 2D Nanomaterials via Dynamic Interface Engineering

open access: yesAdvanced Materials Interfaces, EarlyView.
This review discusses conformal coating and transfer of two‐dimensional (2D) nanomaterials with a focus on dynamic interface engineering. By actively regulating nanosheet transport and interfacial contact during film formation, recent dynamic coating strategies overcome the limitations of conventional passive approaches and enable geometry‐adaptive ...
Seungyeon Kim   +4 more
wiley   +1 more source

Studies of genotoxicity and apoptosis using human lymphocytes or murine neuroblastoma cells exposed in vitro to radiofrequency fields characteristic of mobile phones [PDF]

open access: yes, 2009
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.The aim of the study was to investigate whether non-thermal levels of radiofrequency (RF) fields, characteristic of some mobile phones, might be directly ...
Moquet, Jayne Elizabeth
core   +3 more sources

Investigation of impact of high-frequency electromagnetic fields of human body

open access: yes, 2003
An important topic of these days is the impact of high-frequency electromagnetic fields on biological objects especially on human body. To determine it generally, theoretical and experimental methods are used.
Darmová, Vilibalda
core  

Wood‐Derived Nanocellulose‐Biocarbon Fresnel‐Zone Plate Lenses for Sub‐THz Frequency Applications

open access: yesAdvanced Materials Technologies, EarlyView.
Wood‐derived nanocellulose and lignin‐based biocarbon were combined to fabricate fully bio‐based Fresnel zone plate (FZP) lenses for sub‐terahertz frequencies. These sustainable FZP lenses exhibit low dielectric loss and high directivity, achieving performance comparable to that of metallic references, and remain functional under environmental stress ...
Riikka Haataja   +9 more
wiley   +1 more source

Aerosol Jet Printing of Benzocyclobutene as a Thermally Stable, Low‐Loss Dielectric for Multilayer Microwave Electronics

open access: yesAdvanced Materials Technologies, EarlyView.
Multilayer aerosol jet printed components with a low‐loss, thermally stable dielectric are demonstrated using benzocyclobutene. Ink formulation and in‐line droplet evaporation control support high‐quality, versatile, and stable printing performance. A specialized measurement for low‐loss materials reveals promising microwave properties, which, combined
Md Ramjan Ali   +3 more
wiley   +1 more source

Development of low-frequency electromagnetic disturbance monitor for seismic observation

open access: yes地震科学进展
Electromagnetic disturbance is an effective means of observing earthquake precursors. As one kind of key device for capturing electromagnetic disturbances, induction magnetometers are widely used with the characteristics of high sensitivity, large ...
Min Zhang   +4 more
doaj   +1 more source

Liquid‐Crystal‐Based Reconfigurable Intelligent Surface for 7 GHz Mobile Communication

open access: yesAdvanced Materials Technologies, EarlyView.
The glass‐based liquid‐crystal reconfigurable intelligent surface (LC‐RIS) integrates active‐matrix driving and blind‐greedy phase optimization within a 5G‐NR OFDM framework. This enables continuously tunable and autonomous enhancement of wireless coverage. Leveraging the transparency and manufacturability of liquid crystal panels, it is ideally suited
Tien‐Lun Ting   +5 more
wiley   +1 more source

Determination of high-frequency current distribution using EMTP-based transmission line models with resulting radiated electromagnetic fields

open access: yes, 2010
Application of BPL technologies to existing overhead high-voltage power lines would benefit greatly from improved simulation tools capable of predicting performance - such as the electromagnetic fields radiated from such lines.
Robert M. Nelson   +7 more
core   +1 more source

Photoluminescence Reshaping via Structural Confinement and Local Density of Optical States Control in Ir(III)‐Doped Biodegradable Metasurfaces

open access: yesAdvanced Materials Technologies, EarlyView.
Phosphorescent biodegradable metasurface showing vibronic selection and spectral photoluminescence narrowing. Anti‐correlation between experimental LDOS and measured lifetimes. ABSTRACT Metasurfaces incorporating phosphorescent emitters offer a route to engineer radiative and vibronic processes beyond chemical design.
Vincenzo Caligiuri   +11 more
wiley   +1 more source

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