Results 51 to 60 of about 1,331,650 (248)
Gelatin-Coated High-Sensitivity Microwave Sensor for Humidity-Sensing Applications
SensorsIn this paper, the humidity-sensing characteristics of gelatin were compared with those of poly(vinyl alcohol) (PVA) at L-band (1 ~ 2 GHz) microwave frequencies.
Junho Yeo, Younghwan Kwon
doaj +1 more source
Microwave Devices for Wearable Sensors and IoT
Sensors, 2023 The Internet of Things (IoT) paradigm is currently highly demanded in multiple scenarios and in particular plays an important role in solving medical-related challenges. RF and microwave technologies, coupled with wireless energy transfer, are interesting candidates because of their inherent contactless spectrometric capabilities and for the wireless ...
Costanzo A. +5 more
openaire +4 more sources
, 2015 Microwave radiation is a form of electromagnetic radiation. It covers, broadly speaking, frequencies between 300 MHz and 300 GHz. For example a microwave oven operates at a frequency of 2.45 GHz and many mobile network providers use frequencies between ...
Marinakis, S, Howard, B
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Advanced Functional Materials, EarlyView.We use scanning nitrogen vacancy magnetometry to directly image the weak in‐plane magnetic moments in mixed phase BiFeO3 at the nanoscale and quantify the local magnetic moments to be 18.8±2.0 μB/nm2 in the rhombohedral‐like phase and 1.5±0.6 μB/nm2 in the well‐known non‐magnetic tetragonal‐like phase.
Lei Wang +14 more
wiley +1 more source
Radiowave technology of resonant gas-sensor microwave telemetry
Российский технологический журнал, 2021 The possibility of using microstrip reflector microwave resonators in solving problems of resonant gas-sensor telemetry on layered dielectric substrates with gas-sensitive sputtering was investigated.
M. S. Kostin, A. D. Yarlykov
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New planar trace humidity sensor [PDF]
, 2012 A new planar sensor element for continuous coulometric trace humidity measurements in industrial gases has been developed. In order to ensure precise measurements a calibration facility including a precision dew point hygrometer as a reference device ...
Andreas Lorek +9 more
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Advanced Functional Materials, EarlyView.A gas‐fed, zero‐gap, PEM CO2 electrolyzer is realized by incorporating PDDA+ ions onto the carbonaceous Co/N‐C electrocatalyst, with gaseous H2 and CO2 fed into the anode and cathode, respectively. Operating without an aqueous electrolyte, the system sustains a peak FECO of 65.1% at 100 mA cm−2. ABSTRACT Electrochemical carbon dioxide reduction (ECO2R)
Yuen Leong Chow +6 more
wiley +1 more source
Salinity and Sugar Content Detection by Wideband Microwave–Based Patch Antenna Sensor
Journal of Electrical and Computer EngineeringThis article studies a dielectric microwave sensor to identify salinity and sugar concentration. The lightweight patch-antenna–based wideband sensor is designed to propagate the electromagnetic wave for the transmission and reception. With a broken-heart-
M. N. Rahman +3 more
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Advances in Climate Change Research, 2023 Current snow depth datasets demonstrate large discrepancies in the spatial pattern in Eurasia, and the lagging updates of datasets do not meet the operational requirements of the meteorological service department. This study developed a dynamic retrieval
Li-Yun Dai +4 more
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Material Identification Using a Microwave Sensor Array and Machine Learning
, 2020 In this paper, a novel methodology is proposed for material identification. It is based on the use of a microwave sensor array with the elements of the array resonating at various frequencies within a wide range and applying machine learning algorithms ...
Luke Harrsion +5 more
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