Results 1 to 10 of about 10,436,708 (370)
We demonstrate halving the record-low loss of interconnection between a nested antiresonant nodeless type hollow-core fiber (NANF) and standard single-mode fiber (SMF).
Dmytro Suslov +9 more
doaj +1 more source
Standalone photovoltaic and battery microgrid design for rural areas
The remote location and many islands in Africa are experiencing a big power shortage and blackouts and they greatly necessitate electric power from standalone photovoltaic microgrid. In Rwanda, off-grid solar systems are at their infancy level and their
Cyprien Nsengimana +3 more
doaj +1 more source
Deep reflector prime focus feed for space communication
In this paper, design of a prime‐focus feed for a deep reflector, Earth–Moon–Earth space communication system is described. The feed is based on a circular waveguide equipped with two chokes in order to minimise sidelobes and illuminate the deep dish ...
Rastislav Galuscak +4 more
doaj +1 more source
Electromagnetic fields (EMFs) provide a non-invasive, safe, and easy method to treat pain with respect to musculoskeletal diseases. The purpose of this systematic review was to describe the use of electromagnetic therapy in the rehabilitation field by ...
T. Paolucci +5 more
semanticscholar +1 more source
A new hybrid microwave photonic link based on a polarization division multiplexing Mach-Zehnder modulator (PDM-MZM) is proposed. The link enables co-transmission of millimeter-wave (mmW) and sub-6 GHz wireless signals over a seamless single-mode fiber ...
Dong-Nhat Nguyen +7 more
doaj +1 more source
Transmitters for Combined Radio Over a Fiber and Outdoor Millimeter-Wave System at 25 GHz
In the modern wireless networks, millimeter-wave radio-frequency (RF) bands are becoming more attractive as they provide larger bandwidth and higher data rates than the today-used systems operating at frequencies below 6 GHz.
Jan Bohata +4 more
doaj +1 more source
The performance of low-voltage circuit breaker overload protection degrades slowly during service, and the service state cannot be simply described as a normal state or a fault state.
Kui Li, Xianfeng Peng, Bokai Hu
doaj +1 more source
One-Dimensional Magnetic FeCoNi Alloy Toward Low-Frequency Electromagnetic Wave Absorption
A novel FeCoNi carbon fiber (FeCoNi/CF) is obtained through an improved electrospinning technology, which greatly endows the fiber with strong magnetic property.
Bintong Yang +9 more
semanticscholar +1 more source
Controlling Electromagnetic Fields
Using the freedom of design that metamaterials provide, we show how electromagnetic fields can be redirected at will and propose a design strategy. The conserved fields—electric displacement field D , magnetic induction field B , and Poynting vector B —are all ...
Pendry, J. B., Schurig, D., Smith, D. R.
openaire +3 more sources
Recent Progress on Electromagnetic Field Measurement Based on Optical Sensors
Electromagnetic field sensors are widely used in various areas. In recent years, great progress has been made in the optical sensing technique for electromagnetic field measurement, and varieties of corresponding sensors have been proposed.
Jun Peng +5 more
semanticscholar +1 more source

