Results 51 to 60 of about 18,960,429 (284)

A High-Sensitivity Dual-Axis Accelerometer with Two FP Cavities Assembled on Single Optical Fiber

open access: yesSensors, 2022
In this paper, a dual-axis Fabry–Pérot (FP) accelerometer assembled on single optical fiber is proposed. The sensor is equipped with a special beam-splitting prism to split the light into two perpendicular directions (the X- and Y-axes); the prism ...
Bolun Zheng   +5 more
doaj   +1 more source

Phase-Retrieved High-Throughput Multi-Channel Simultaneous Surface Plasmon Resonance Detection [PDF]

open access: yes
Surface plasmon resonance (SPR) enables real-time, label-free detection of biomolecular interactions, but traditional intensity-based methods suffer from limited sensitivity due to noise and environmental fluctuations. Phase-sensitive SPR methods provide
Jiang, Xiaoping   +3 more
core   +1 more source

Photonics-Enabled High-Sensitivity and Wide-Bandwidth Microwave Phase Noise Analyzers

open access: yesPhotonics
Phase noise constitutes a pivotal performance parameter in microwave systems, and the evolution of microwave signal sources presents new demands on phase noise analyzers (PNAs) regarding sensitivity and bandwidth.
Jingzhan Shi, Baojin Tu, Yiping Wang
doaj   +1 more source

Preparation of Graphene/ITO Nanorod Metamaterial/U-Bent-Annealing Fiber Sensor and DNA Biomolecule Detection

open access: yesNanomaterials, 2019
In this paper, a graphene/ITO nanorod metamaterial/U-bent-annealing (Gr/ITO-NM/U-bent-A)-based U-bent optical fiber local surface plasmon resonance (LSPR) sensor is presented and demonstrated for DNA detection.
Wen Yang   +7 more
doaj   +1 more source

Abrupt phase change in graphene-gold spr-based biosensor

open access: yesMaterials Research Express, 2020
The performance of surface plasmon resonance (SPR) sensors can be different depending on which characteristic of the SPR sensor the amplitude or the phase is monitored.
Nasrin Bouzari   +3 more
doaj   +1 more source

High-sensitivity salinity sensor based on optical microfiber coil resonator [PDF]

open access: yes, 2018
A simple, compact, and high-sensitivity optical sensor for salinity measurement is reported based on an optical microfiber coil resonator (MCR). The MCR is manufactured by initially wrapping microfiber on a polymethylmethacrylate (PMMA) rod, which is ...
Li, Shi   +15 more
core   +1 more source

CT colonography has low sensitivity but high specificity in the detection of internal hemorrhoids [PDF]

open access: yes, 2020
PURPOSEWe aimed to evaluate the diagnostic performance of computed tomography colonography (CTC) in the detection of internal hemorrhoids.METHODSThree gastroenterologists systematically reported on the presence of internal hemorrhoids in patients with ...
Jiri Jahoda   +5 more
core   +1 more source

Ovarian Sex Cord Stromal Tumors in Children and Adolescents—The European Standard Clinical Practice Recommendations

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT As part of the European Cooperative Study Group for Paediatric Rare Tumours initiative, we developed standard clinical practice guidelines for ovarian sex cord stromal tumors, based on comprehensive national and international cohort analyses, literature review, and a final expert consensus conference.
Dominik T. Schneider   +15 more
wiley   +1 more source

Comparative Drug Response Profiling in Neuroblastoma Cell Lines and Patient‐Derived Tumor Organoids

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT High‐risk neuroblastoma remains a leading cause of pediatric cancer mortality, and improved preclinical models are needed to guide therapeutic developments. We screened seven high‐risk neuroblastoma cell lines and three patient‐derived tumor organoids with 528 compounds alongside bone marrow controls, and compared them with external datasets ...
Krzysztof Wierbiłowicz   +12 more
wiley   +1 more source

Novel Estimation Methods for Sensitivity And AUC in Medical Diagnostic Study [PDF]

open access: yes, 2022
In the medical diagnostic study, the accuracy of a diagnostic test is commonly evaluated based on its sensitivity and specificity. Both sensitivity and specificity are not fixed but depend on the cutoff chosen for that test.
Hai, Yan
core   +1 more source

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