Results 41 to 50 of about 127,919 (291)

Optical fiber sensing based on reflection laser spectroscopy [PDF]

open access: yes, 2010
An overview on high-resolution and fast interrogation of optical-fiber sensors relying on laser reflection spectroscopy is given. Fiber Bragg-gratings (FBGs) and FBG resonators built in fibers of different types are used for strain, temperature and ...
De Natale, Paolo   +34 more
core   +1 more source

Wireless Capacitive Liquid-Level Detection Sensor Based on Zero-Power RFID-Sensing Architecture

open access: yesSensors, 2022
In this paper, a new method for the wireless detection of liquid level is proposed by integrating a capacitive IDC-sensing element with a passive three-port RFID-sensing architecture.
Shaheen Ahmad   +3 more
doaj   +1 more source

Intelligent Sensors in Software: The Use of Parametric Models for Phase Noise Analysis

open access: yes, 2006
Intelligent senors have attracted particular attention in the recent past. This paper argues that an “intelligent sensor” should be able to perform on-board signal processing within the sensor’s software in order to produce the optimal signal output.
Dimosthenis Karatzas   +7 more
core   +1 more source

A Critical Review on the Use of Molecular Imprinting for Trace Heavy Metal and Micropollutant Detection

open access: yesChemosensors, 2022
Molecular recognition has been described as the “ultimate” form of sensing and plays a fundamental role in biological processes. There is a move towards biomimetic recognition elements to overcome inherent problems of natural receptors such as limited ...
Patrick Marcel Seumo Tchekwagep   +10 more
doaj   +1 more source

Advancing Sensitivity in Guided-Wave Surface Plasmon Resonance Sensor through Integration of 2D BlueP/MoS2 Hybrid Layers

open access: yesBiosensors, 2023
The surface plasmon resonance (SPR) signal, generated from the Kretschmann configuration, has been developed as an effective detection technology in chemical and biological sensors. The sensitivity of SPR signals to changes in the surrounding media makes
Xixi Yuan, Leiming Wu, Yuwen Qin
doaj   +1 more source

Fibre segment interferometry using code-division multiplexed optical signal processing for strain sensing applications [PDF]

open access: yes, 2013
A novel optical signal processing scheme for multiplexing fibre segment interferometers is proposed. The continuous-wave, homodyne technique combines code-division multiplexing with single-sideband modulation.
Charrett, Thomas O. H.   +2 more
core   +1 more source

Experimental Investigations and Modeling of Interference Fringe Geometry in Line-Shaped Gaussian Beam Intersections for Laser Doppler Sensors

open access: yesPhotonics, 2023
Line-shaped beam-based Doppler distance sensors enable 3D shape measurements of rotating objects, for instance for working lathe monitoring with a simultaneous, multipoint velocity, and distance measurement.
Hao Zhang, Jieping Wang, Shiji Wang
doaj   +1 more source

Multi-component strain development in superconducting magnet coils monitored using fibre Bragg grating sensors fabricated in highly linearly birefringent fibre [PDF]

open access: yes, 2011
The commissioning of superconducting magnet coils was monitored using embedded optical fibre Bragg grating sensors (FBG) fabricated in highly linearly birefringent (HiBi) fibre.
Adam Johnstone   +15 more
core   +1 more source

Straightforward Magnetic Resonance Temperature Measurements Combined with High Frame Rate and Magnetic Susceptibility Correction

open access: yesBioengineering, 2023
Proton resonance frequency shift (PRFS) is an MRI-based simple temperature mapping method that exhibits higher spatial and temporal resolution than temperature mapping methods based on T1 relaxation time and diffusion.
Sangwoo Kim, Donghyuk Kim, Sukhoon Oh
doaj   +1 more source

Clinical and Biological Features of Response in Resistant Neuroblastoma to 131I‐Metaiodobenzylguanidine Radiotherapy in the Anti‐GD2 Immunotherapy Era

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background 131I‐metaiodobenzylguanidine (131I‐MIBG) radiotherapy is a key treatment for relapsed and refractory (R/R) neuroblastoma (NB). Patients with R/R disease treated in the modern era are increasingly exposed to anti‐GD2 immunotherapy, which exerts selective pressure and may modify both tumor cell state and microenvironment.
Benjamin J. Lerman   +7 more
wiley   +1 more source

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