Results 21 to 30 of about 137,818 (293)
Sensors, 2021 We demonstrate a novel chalcogenide glass (ChG)-capped optical fiber temperature sensor capable of operating within harsh environment. The sensor architecture utilizes the heat-induced phase change (amorphous-to-crystalline) property of ChGs, which ...
Bahareh Badamchi +3 more
doaj +1 more source
On the semi-annual variation of relativistic electrons in the outer radiation belt [PDF]
Annales Geophysicae, 2021 The nature of the semi-annual variation in the relativistic electron fluxes in the Earth's outer radiation belt is investigated using Van Allen Probes (MagEIS and REPT) and Geostationary Operational Environmental Satellite Energetic Particle Sensor (GOES/
C. Katsavrias +9 more
doaj +1 more source
Highly Sensitive Reflective-Mode Phase-Variation Permittivity Sensors Using Coupled Line Sections
IEEE Transactions on Microwave Theory and Techniques, 2023 Highly sensitive permittivity sensors operating in reflection and exploiting phase variation are presented in this article. The sensors are one-port structures implemented by means of a pair of coupled lines, the sensitive region, with an appropriate termination.
Pau Casacuberta +4 more
openaire +3 more sources
Uneven key pre-distribution scheme for multi-phase wireless sensor networks [PDF]
, 2013 In multi-phase Wireless Sensor Networks (WSNs), sensor nodes are redeployed periodically to replace nodes whose batteries are depleted. In order to keep the network resilient against node capture attacks across different deployment epochs, called ...
Çatakoğlu, Abdullah Onur, Levi, Albert
core +1 more source
Optimal design of a four-sensor probe system to measure the flow properties of the dispersed phase in bubbly air-water multiphase flows [PDF]
, 2013 This paper presents a systematic investigation on the design and development of a four-sensor probe system to be used for air-water multiphase flow measurements.
Ubbi, Kuldip +8 more
core +1 more source
Optimization of soot deposition by high-temperature prepolarization of a resistive particulate matter sensor [PDF]
, 2020 For the purposes of the onboard diagnosis (OBD) of diesel particulate filters (DPFs) in diesel exhaust treatment systems, a particulate matter (PM) sensor is applied downstream from the DPFs to detect small amounts of diesel soot that passed through the ...
Fritze, Holger +2 more
core +1 more source
Petroleum, 2021 A systematic model development for oil flow in quasi-3D (1D + 2D) is presented. Our approach provides a unified modeling scheme. Besides, additional terms are obtained, which allows for tubing area variation along the flow direction.
Edval J.P. Santos
doaj +1 more source
IEEE Sensors Journal, 2021 Reflective-mode step-impedance transmission line based sensors for dielectric characterization of solids or liquids have been recently proposed. In this article, in order to further increase the sensitivity, the sensor is implemented in coplanar waveguide (CPW technology), and this constitutes the main novelty of this work.
Lijuan Su +5 more
openaire +2 more sources
Inkjet printed LED based pH chemical sensor for gas sensing [PDF]
, 2009 Predictable behaviour is a critical factor when developing a sensor for potential deployment within a wireless sensor network (WSN). The work presented here details the fabrication and performance of an optical chemical sensor for gaseous acetic acid ...
O'Toole, Martina +8 more
core +1 more source
Sensors, 2009 A small-displacement sensor based on total-internal reflection theory and surface plasmon resonance technology is proposed for use in heterodyne interferometry.
Shinn-Fwu Wang
doaj +1 more source