Results 31 to 40 of about 5,045,493 (316)

Quasi-Distributed Dual-Parameter Optical Fiber Sensor Based on Cascaded Microfiber Fabry–Perot Interferometers

open access: yesIEEE Photonics Journal, 2018
We propose and demonstrate a quasi-distributed fiber sensor based on cascaded microfiber Fabry–Perot interferometers (MFPIs) for simultaneous refractive index (RI) and temperature measurement.
Yang Xiang   +6 more
doaj   +1 more source

Experimental Investigation on Improved Predistortion Circuit for Directly Modulated Radio Over Fiber System

open access: yesIEEE Photonics Journal, 2017
An extension of the conventional dual Schottky diode-based predistortion circuit (PDC) is proposed to linearize directly modulated radio over fiber (RoF) system.
Shichao Chen   +8 more
doaj   +1 more source

Access to Health Information. Editorial [PDF]

open access: yesYearbook of Medical Informatics, 2008
Summary Objectives To provide an editorial introduction to the 2008 IMIA Yearbook of Medical Informatics with an overview of its contents and contributors. MethodsA brief overview of the main theme of “Access to Health Information”, and an outline of the purposes, contents, format, and acknowledgment of contributions for the 2008 ...
Kulikowski, C., Geissbuhler, Antoine
openaire   +2 more sources

Open access indicators and information society: the Latin American case [PDF]

open access: yes, 2008
Purpose – The purpose of this paper is to estimate open access penetration ratios through cross-analysis of existing social context and open access indicators in Latin America.
Bustos-Gonzalez, Atilio   +10 more
core   +1 more source

High Sensitivity and High Stability Dual Fabry-Perot Interferometric Fiber-Optic Acoustic Sensor Based on Sandwich-Structure Composite Diaphragm

open access: yesIEEE Photonics Journal, 2021
A dual Fabry-Perot (FP) interferometric fiber-optic acoustic sensor based on sandwich-structure composite diaphragm is proposed, where fixed phase difference is generated by two FP interferometers (FPIs) with different cavity length.
Wanjin Zhang   +6 more
doaj   +1 more source

Online Submission and Review System for Open Science: A Case of AccessON Peer Review Management System Plus (ACOMS+)

open access: yesJournal of Information Science Theory and Practice
As the academic publishing environment evolves rapidly and the open science paradigm emerges, the demand for efficient and transparent peer review is growing.
Jaemin Chung   +6 more
doaj   +1 more source

Ultra-long Distance Distributed Intrusion Detecting System Assisted With In-line Amplification

open access: yesIEEE Photonics Journal, 2017
An ultra-long distance distributed intrusion detecting system assisted with power amplification and sensitivity enhancement is proposed and demonstrated. First, through introducing multiple bidirectional amplifiers into the unbalanced Mach–Zehnder&
Macheng Lai   +7 more
doaj   +1 more source

High-Precision Low-Cost Mid-Infrared Photoacoustic Gas Sensor Using Aspherical Beam Shaping for Rapidly Measuring Greenhouse Gases

open access: yesPhotonics
A high-precision low-cost mid-infrared photoacoustic sensor for greenhouse composite gases based on aspherical beam shaping is proposed and demonstrated. The assembled optical source module and luminous characteristics of infrared source are innovatively
Qingping Hu   +11 more
doaj   +1 more source

Ultrasensitive Temperature Sensor With Cascaded Fiber Optic Fabry–Perot Interferometers Based on Vernier Effect

open access: yesIEEE Photonics Journal, 2018
We have proposed and experimentally demonstrated an ultrasensitive fiber-optic temperature sensor based on two cascaded Fabry–Perot interferometers (FPIs).
Jin Zhang   +7 more
doaj   +1 more source

Carcinomas and Carcinoid Tumors of the Lungs and Bronchi in Children and Adolescents: The EXPeRT Recommendations

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Primary lung carcinomas and bronchial carcinoid tumors (BC) are very rare malignancies in childhood. While typical BC and mucoepidermoid carcinomas are mostly low‐grade, localized tumors with a more favorable prognosis than in adults, necessitating avoidance of overtreatment, adenocarcinomas of the lung are often diagnosed at advanced disease ...
Michael Abele   +19 more
wiley   +1 more source

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