Results 201 to 210 of about 18,972 (264)
Kresling Origami‐Based Metamaterial Robot for Dynamic Electromagnetic Control
Advanced Science, EarlyView.A reconfigurable metamaterial system integrates deformable origami units with high‐permittivity ceramic plates. Pneumatic switching between structural states alters local resonance conditions, enabling dynamic radar stealth and adaptive microwave reflection for mobile communication.
Xinxi Zeng +13 more
wiley +1 more source
Advanced Science, EarlyView.Unconventional spin currents are generated in an antiferromagnetic NiO(110)/Ta/CoFeB trilayer, where the Néel vector governs spin transport. The resulting spin–orbit torques enable deterministic field‐free switching of perpendicular magnetization.
Hyeong‐Joo Seo +12 more
wiley +1 more source
Modified MXene Aerogel With Broadband Microwave Absorption Inspired by Melanophila Acuminata Beetle
Advanced Science, EarlyView.This work introduces a novel biomimetic strategy inspired by the infrared‐sensing sensilla of the Melanophila acuminata beetle. We have designed a multi‐level aerogel, featuring a three‐dimensional carbon framework decorated with synergistic CeO2 nanoparticles and Ti3C2Tx MXene nanosheets.
Zhiwei Liu +6 more
wiley +1 more source
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A microwave sensor for agricultural implements
IEEE International Geoscience and Remote Sensing Symposium, 2003For soil preparation, the concept of precision agriculture requires real time measurements of soil characteristics and cultivator behavior. The microwave sensor presented in this paper overcomes the limitations of sensors based on optical or ultrasound devices towards agricultural environment (dust, rain, etc.).
Raphaël Rouveure +3 more
openaire +1 more source
Microwave and Optical Technology Letters, 2015
ABSTRACTA microwave‐based sensor for detection of cracks is proposed. Two types of resonators are designed and analyzed. The first resonator is a ring resonator with stubs attached to the rings. It resonates at a frequency of 2.3 GHz with an insertion loss of −38.51 dB and a return loss of −3.25 dB.
Rebecca Abraham, K. Usha Kiran
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ABSTRACTA microwave‐based sensor for detection of cracks is proposed. Two types of resonators are designed and analyzed. The first resonator is a ring resonator with stubs attached to the rings. It resonates at a frequency of 2.3 GHz with an insertion loss of −38.51 dB and a return loss of −3.25 dB.
Rebecca Abraham, K. Usha Kiran
openaire +1 more source
Experiments with microwave sensors
International Journal of Remote Sensing, 1992After an introductory first section, based on the previous history of microwave remote sensing in Europe, a review of achievements is presented in two parts. In the first the material is based on sensor development in the different European countries, whereas in the second non-European sensors are also included.
L. KRUL, G. P. de LOOR
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Journal of Lightwave Technology, 2021
Microwave photonics is a field that studies the interaction between microwave and optical waves for the generation, transmission, processing, and measurements of microwave signals by means of photonics, to take advantage of the high speed and broad bandwidth offered by modern photonics.
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Microwave photonics is a field that studies the interaction between microwave and optical waves for the generation, transmission, processing, and measurements of microwave signals by means of photonics, to take advantage of the high speed and broad bandwidth offered by modern photonics.
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A Microwave Sensor for Steam Quality
IEEE Transactions on Instrumentation and Measurement, 2008In this paper, a microwave-based in-line sensor for steam quality is described, and test results are reported. The sensor employs a novel high-pressure process seal that minimizes mismatch effects when water condenses on its inner surface.
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37th IEEE Vehicular Technology Conference, 1987
A microwave vehicle sensor is described. It is based on microwave radiometry, that is measurement of microwave energy (or temperature) emitted or reflected by bodies. This technique allows detection of passing vehicules as well as measurement of speed and length. Abnormal road surface condition is also detected.
R. Garceau +3 more
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A microwave vehicle sensor is described. It is based on microwave radiometry, that is measurement of microwave energy (or temperature) emitted or reflected by bodies. This technique allows detection of passing vehicules as well as measurement of speed and length. Abnormal road surface condition is also detected.
R. Garceau +3 more
openaire +1 more source
2020
Microwave imaging (MWI) systems are nowadays acquiring an ever-growing importance in numerous application fields, such as non-destructive testing (NDT) in civil and industrial applications, subsurface sensing and ground penetrating radar (GPR) prospection, through-wall imaging (TWI) for security and biomedical imaging.
Fedeli, Alessandro +2 more
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Microwave imaging (MWI) systems are nowadays acquiring an ever-growing importance in numerous application fields, such as non-destructive testing (NDT) in civil and industrial applications, subsurface sensing and ground penetrating radar (GPR) prospection, through-wall imaging (TWI) for security and biomedical imaging.
Fedeli, Alessandro +2 more
openaire +1 more source