Results 21 to 30 of about 12,802,058 (300)

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

IEEE 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, Lei Deng, Yao Ye, Xiaoman Chen, Mengfan Cheng, Ming Tang, Songnian Fu, Fengguang Luo, Deming Liu   +8 more
doaj   +1 more source

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

IEEE 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, Ping Lu, Zhiyuan Qu, Pingjie Fan, Chaotan Sima, Deming Liu, Jiangshan Zhang   +6 more
doaj   +1 more source

Public access to environmental information: Past, present and future [PDF]

, 2003
Since the late 1960s and the "environmental revolution", information and information systems have been an integral part of the environmental debate.
Haklay, ME
core   +1 more source

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

Journal 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, Eunkyung Nam, Sung-Nam Cho, Jeong-Mee Lee, Hyunjung Kim, Hye-Sun Kim, Wan Jong Kim   +6 more
doaj   +1 more source

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

IEEE 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, Kuan Peng, Yiyang Luo, Xiaolei Li, Yanpeng Li, Fan Ai, Deming Liu, Qizhen Sun   +7 more
doaj   +1 more source

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

Photonics
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, Yan Ai, Chaotan Sima, Yu Sun, Zhiyu Feng, Tailin Li, Chen Tong, Xiaohong Cao, Wenzhe Wang, Runze Fan, Yufeng Pan, Ping Lu   +11 more
doaj   +1 more source

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

IEEE 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, Hao Liao, Ping Lu, Xinyue Jiang, Xin Fu, Wenjun Ni, Deming Liu, Jiangshan Zhang   +7 more
doaj   +1 more source

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen, Calogero Virgone, Antje Redlich, Michael Abele, Ricardo Lopez‐Almaraz, Tal Ben‐Ami, Ewa Bien, Gianni Bisogno, Maja Mazic Cesen, Andrea Ferrari, Malgorzata A. Krawczyk, Yves Reguerre, Dominik T. Schneider, Ines B. Brecht, Charlotte Rigaud, Bilgehan Yalcin, Rainer Claus, Christian Vokuhl, Constantin Lapa, Jörg Fuchs, Segolene Hescot, Thomas Walter, Julien Hadoux, Daniel Orbach   +23 more
wiley   +1 more source

A 2 μm Wavelength Band Low-Loss Spot Size Converter Based on Trident Structure on the SOI Platform

Micromachines
A 2 μm wavelength band spot size converter (SSC) based on a trident structure is proposed, which is coupled to a lensed fiber with a mode field diameter of 5 μm.
Zhutian Wang, Chenxi Xu, Zhiming Shi, Nan Ye, Hairun Guo, Fufei Pang, Yingxiong Song   +6 more
doaj   +1 more source

SERS Taper-Fiber Nanoprobe Modified by Gold Nanoparticles Wrapped with Ultrathin Alumina Film by Atomic Layer Deposition

Sensors, 2017
A taper-fiber SERS nanoprobe modified by gold nanoparticles (Au-NPs) with ultrathin alumina layers was fabricated and its ability to perform remote Raman detection was demonstrated.
Wenjie Xu, Zhenyi Chen, Na Chen, Heng Zhang, Shupeng Liu, Xinmao Hu, Jianxiang Wen, Tingyun Wang   +7 more
doaj   +1 more source