Results 31 to 40 of about 109,932 (312)

Effect of terahertz irradiation on DNA damage repair in living cells

open access: yesFEBS Open Bio, EarlyView.
We investigated the effect of terahertz (THz) wave irradiation on DNA double‐strand break (DSB) repair in living cells. We found that THz irradiation enhanced DSB repair at specific frequencies, whereas heat treatment inhibited it, indicating that this effect is nonthermal and frequency‐specific.
Yuya Ueno   +3 more
wiley   +1 more source

Phenomena in the ionosphere-magnetosphere system induced by injection of powerful HF radio waves into nightside auroral ionosphere [PDF]

open access: yes, 2005
International audienceExperimental results from three ionospheric HF pumping experiments in overdense E or F regions are summarized. The experiments were conducted by the use of the EISCAT HF Heating facility located near Tromsø, Norway, allowing HF ...
N. F. Blagoveshchenskaya   +13 more
core   +1 more source

Research on Radio Wave Coverage of Beamforming Antennas in Train Carriage and Corridor Measurement

open access: yesInternational Journal of Antennas and Propagation
In order to provide high-quality public mobile communication in speed train, uniform radio wave coverage in the carriage must be realized. Using repeater antenna in train carriage is an effective way to meet the requirement of radio wave coverage, but ...
Luyao Zhang   +3 more
doaj   +1 more source

A Compact Spin‐Coated Graphene UWB Antenna for Breast Tumor Detection

open access: yesAdvanced Engineering Materials, EarlyView.
A compact, spin‐coated graphene ultra‐wideband patch antenna designed for breast tumor detection, capable of distinguishing between malignant and benign tumors. This innovative antenna can serve as an effective initial screening tool, particularly in resource‐limited settings such as rural areas, where access to advanced medical equipment like MRI and ...
Raja Rashidul Hasan   +9 more
wiley   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

open access: yesAdvanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova   +9 more
wiley   +1 more source

The Impact of Simulated Digital Data Radio Communication Induced Interference on Voice Radio Communication Intelligibility [PDF]

open access: yes, 2003
Testing to date indicates there is a significant potential for adverse interference from the digital system to the analog system, especially for General Aviation (GA) aircraft.
Kratchounova, Daniela   +1 more
core   +2 more sources

Research on Antenna Propagation Loss Model in Rail Transit Tunnel based on Multi-dimensional Scenario Analysis

open access: yesChengshi guidao jiaotong yanjiu
[Objective] As tunnel is one of the typical environments for rail transit wireless communication, the accurate prediction of radio wave signal strength in tunnels has always attracted wide attention and study.
ZHAO Yifan   +4 more
doaj   +1 more source

Transfer Printing and Reconfiguration of Soft Electronics Using Digital Microfluidics and Laser Machining

open access: yesAdvanced Functional Materials, EarlyView.
This paper presents a digital microfluidics‐based technique for transferring and reconfiguring soft nanomembranes. Laser‐machined nanothin membranes are picked up, transported, and aligned via tailored surface tension and the actuation of water droplets, enabling the development of flexible electronics, the integration of functional materials on 3D ...
Quang Anh Nguyen   +15 more
wiley   +1 more source

Community radio in Ireland: building community, participation and multi-flow communication [PDF]

open access: yes, 2003
The core aims of community radio stations foreground the principle of participation by the people in the communication process. Community radio stations broadcast to build the communities which they serve.
Day, Rosemary
core  

5G mmWave OTA test technologies

open access: yesDianxin kexue, 2021
Millimeter wave (mmWave) is one of the key technologies of 5G communication, 5G communication will bring revolutionary improvements in network capacity, data rate, and delay.5G testing has changed from the previous conduction type to OTA testing.The ...
Yunzhi LING, Yu ZHANG, Hu XU, Ting CHEN
doaj   +2 more sources

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