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Electromagnetic Radiation* [PDF]

open access: yes, 1999
Electromagnetic radiation, commonly referred to as light, underpins all spectroscopic techniques, ranging from the highly energetic gamma rays, through x-rays, ultraviolet, visible, infrared, microwaves to the low-energy radio waves. The principles of wave- and particle-like behaviour determine the nature of the radiation and its interaction with ...
Andrews, D.L.
openaire   +6 more sources

Biological effects of exposure to 2650 MHz electromagnetic radiation on the behavior, learning, and memory of mice [PDF]

open access: yesBrain and Behavior, 2023
Background With the development of communication technology, the public is paying increasing attention to whether electromagnetic radiation is harmful to health.
Rongqi Zheng   +7 more
doaj   +2 more sources

Study on Electromagnetic Radiation Interference Caused by Rocket Fuel [PDF]

open access: yesSensors, 2021
During the launch and return of a spacecraft, the intense combustion of propellants generates strong electromagnetic radiation, which interferes with the operation of electronic equipment in the spacecraft. To improve the electromagnetic compatibility of
Yuanbo Cui   +4 more
doaj   +2 more sources

Electromagnetic radiation [PDF]

open access: yesBritish Medical Bulletin, 2003
Electromagnetic fields (EMF) are ubiquitous in modern society. It is well known that exposure to strong fields can result in acute effects, such as burns; the mechanisms behind such effects are well established. There is, however, also a concern that long-term exposure to weak fields might have health effects due to an as-yet unknown mechanism. Because
Anders, Ahlbom, Maria, Feychting
openaire   +2 more sources

The latest process and challenges of microwave dielectric ceramics based on pseudo phase diagrams

open access: yesJournal of Advanced Ceramics, 2021
The explosive process of 5G communication evokes the urgent demand of miniaturized and integrated dielectric ceramics filter. It is a pressing need to advance the development of dielectric ceramics utilization of emerging technology to design new ...
Hongcheng Yang   +7 more
doaj   +1 more source

Noise Analysis in Pre-Amplifier Circuits Associated to Highly Sensitive Optically-Pumped Magnetometers for Geomagnetic Applications

open access: yesApplied Sciences, 2020
This paper analyzes the noise sources in photoelectric detection circuits with several low-noise operational amplifiers cores. The fabricated circuits are low-noise pre-amplifiers that are used for optically pumped magnetometers. In the proposed circuits,
Leisong Liu   +4 more
doaj   +1 more source

Investigation on Time Domain Coded Electromagnetic Exploration Method

open access: yesLeida xuebao, 2014
To suppress airwave interference, a time-domain coded electromagnetic exploration method is proposed with Pseudo-Random Binary Sequences (PRBS) code as the source signal.
Zhang Jian-guo   +4 more
doaj   +1 more source

A Theoretical Sub-0.1 dB Loss Single Mode Fiber-To-Chip Edge Coupler for Silicon Nitride Waveguides

open access: yesPhotonics, 2023
A low loss optical interconnection between optical fibers and photonic integrated circuits is critical for high performance photonic systems. In the past decade, spot size converters, subwavelength waveguide grating (SWG) structures, and different ...
Di Wu   +7 more
doaj   +1 more source

Expanding the use of real-time electromagnetic tracking in radiation oncology. [PDF]

open access: yes, 2011
In the past 10 years, techniques to improve radiotherapy delivery, such as intensity-modulated radiation therapy (IMRT), image-guided radiation therapy (IGRT) for both inter- and intrafraction tumor localization, and hypofractionated delivery techniques ...
Kupelian, Patrick A   +3 more
core   +1 more source

Design of a Handheld Pseudo Random Coded UWB Radar for Human Sensing

open access: yesLeida xuebao, 2015
This paper presents the design of a handheld pseudo random coded Ultra-WideBand (UWB) radar for human sensing. The main tasks of the radar are to track the moving human object and extract the human respiratory frequency.
Xia Zheng-huan   +6 more
doaj   +1 more source

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