Results 61 to 70 of about 350,555 (300)

Optical transmittance degradation in tapered fibers [PDF]

, 2011
We investigated the cause of optical transmittance degradation in tapered fibers. Degradation commences immediately after fabrication and it eventually reduces the transmittance to almost zero.
Birks, Brambilla, Brambilla, Cordeiro, Davanço, Gregor, Gregora, Kiyota Toubaru, Konishi, Lin, Masazumi Fujiwara, Nayak, Schliesser, Shigeki Takeuchi, Srinivasan, Takashima, Tanaka, Totsuka, Vienne, Xu   +19 more
core   +2 more sources

Diffusion Spectrum Imaging Maps Early Axonal Loss and a Unique Progressive Signal in Neuronal Intranuclear Inclusion Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To delineate specific in vivo white matter pathology in neuronal intranuclear inclusion disease (NIID) using diffusion spectrum imaging (DSI) and define its clinical relevance. Methods DSI was performed on 42 NIID patients and 38 matched controls.
Kaiyan Jiang, Yixiu Pei, Xiaobao Hu, Ying Xiong, Fang Wang, Yanyan Yu, Min Zhu, Dandan Tan, Meihong Zhou, Daojun Hong, Fuqing Zhou   +10 more
wiley   +1 more source

Selenium semiconductor core optical fibers

AIP Advances, 2015
Phosphate glass-clad optical fibers containing selenium (Se) semiconductor core were fabricated using a molten core method. The cores were found to be amorphous as evidenced by X-ray diffraction and corroborated by Micro-Raman spectrum.
G. W. Tang, Q. Qian, K. L. Peng, X. Wen, G. X. Zhou, M. Sun, X. D. Chen, Z. M. Yang   +7 more
doaj   +1 more source

Semiconductor Core Optical Fibers

IEEE Photonics Journal, 2011
Presented here is a review of recent efforts to date in the field of semiconductor core optical fibers. Various processing techniques have been employed to fabricate such fibers and control the degree of crystallinity achieved within the fiber cores ...
S. Morris, J. Ballato, T. Hawkins, P. Foy, B. Yazgan-Kokuoz, C. McMillen, R. Stolen, R. Rice   +7 more
doaj   +1 more source

The Influence of Motion and Stress on Optical Fibers

, 2013
We report on extensive testing carried out on the optical fibers for the VIRUS instrument. The primary result of this work explores how 10+ years of simulated wear on a VIRUS fiber bundle affects both transmission and focal ratio degradation (FRD) of the
Anderson, Seth, Cornell, Mark E., Fuller, Lindsay, Good, John, Hill, Gary J., Kelz, Andreas, Lee, Hanshin, MacQueen, Phillip J., Moreira, Walter, Murphy, Jeremy D., Rafal, Marc, Rafferty, Tom, Soukup, Ian, Taylor, Trey, Tuttle, Sarah, Vattiat, Brian   +15 more
core   +1 more source

Structure–Function Decoupling of the Sensorimotor and Default Mode Networks in Black Americans With MS

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background and Objectives Multiple sclerosis (MS) exhibits racially disparate rates of disease progression. Black people with MS (B‐PwMS) experience a more severe disease course than non‐Hispanic White people with MS (NHW‐PwMS). Here we investigated structural and functional connectivity as well as structure–function decoupling in the ...
Emilio Cipriano, Giacomo Boffa, Maria Petracca, Marta Ponzano, Nicole Graziano, Claire Wigley, Claire Riley, Jonathan Howard, Pietro Bontempi, Sylvia Klineova, Fred Lublin, Matilde Inglese   +11 more
wiley   +1 more source

Rectangular Glass Optical Fiber for Transmitting Sunlight in a Hybrid Concentrator Photovoltaic and Daylighting System

International Journal of Photoenergy, 2020
In this paper, we propose to use glass optical fibers with a rectangular cross-section for the application in a concentrator photovoltaic and daylighting system (CPVD) due to the unique characteristics of rectangular fibers with the capability to provide
Afshin Aslian, Kok-Keong Chong, Seyed Hassan Tavassoli, Chin-Joo Tan, Omid Badkoobe Hazave   +4 more
doaj   +1 more source

Normal‐Appearing White Matter Injury Mediates Chronic Deep Venous Hypoxia and Disease Progression in Multiple Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To explore how cerebral hypoxia and Normal‐Appearing White Matter (NAWM) integrity affect MS lesion burden and clinical course. Methods Seventy‐nine MS patients, including 13 clinically isolated syndrome (CIS) patients and 66 relapsing–remitting multiple sclerosis (RRMS) patients, and 44 healthy controls (HCs) were recruited from ...
Xinli Wang, Huiying Wang, Zhizheng Zhuo, Ai Guo, Ke Lv, Decai Tian, Chao Chai, Yunyun Duan, Shuang Xia   +8 more
wiley   +1 more source

Effectiveness of rTMS on Working Memory and Inhibitory Impairments in Patients With Post‐Stroke Executive Deficits

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Considerable efforts have been dedicated to developing effective treatments for post‐stroke executive impairment (PSEI), among which repetitive transcranial magnetic stimulation (rTMS) has shown great potential. This study aimed to investigate the therapeutic effects of high‐frequency rTMS on working memory (WM) and response ...
Mengting Lao, Rongwei Du, Zhujun Wang, Yang Gao, Meiling Cheng, Xianglong Wang, Wen Wu   +6 more
wiley   +1 more source

Analysis of the applicability of singlemode optical fibers for measurement of deformation with distributed systems BOTDR [PDF]

, 2016
Distributed optical fiber sensors allow monitoring physical effects across the whole cable. The paper presents results obtained from the performed tests and shows that single mode fibers can provide analyses of the deformation changes, when distributed ...
Bednárek, Lukáš, Fajkus, Marcel, Frnda, Jaroslav, Nedoma, Jan, Vašinek, Vladimír   +4 more
core   +2 more sources