Results 81 to 90 of about 162,455 (354)

Brainstem and Cerebellar Volume Loss and Associated Clinical Features in Progressive Supranuclear Palsy

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Introduction Progressive Supranuclear Palsy (PSP) is a neurodegenerative ‘tauopathy’ with predominating pathology in the basal ganglia and midbrain. Caudal tau spread frequently implicates the cerebellum; however, the pattern of atrophy remains equivocal.
Chloe Spiegel, Timothy P. Siejka, Cassandra Marotta, Josh J. Y. Lee, Kelly Bertram, Terence J. O'Brien, Meng Law, Lucy Vivash, Ian H. Harding   +8 more
wiley   +1 more source

Rapid and Accurate Shape-Sensing Method Using a Multi-Core Fiber Bragg Grating-Based Optical Fiber

Sensors
Shape-sensing optical fibers have become increasingly important in applications requiring flexible navigation, spatial awareness, and deformation monitoring.
Georgios Violakis, Nikolaos Vardakis, Zhenyu Zhang, Martin Angelmahr, Panagiotis Polygerinos   +4 more
doaj   +1 more source

Highly Sensitive and Wide-Dynamic-Range Multichannel Optical-Fiber pH Sensor Based on PWM Technique

Sensors, 2016
In this study, we propose a highly sensitive multichannel pH sensor that is based on an optical-fiber pulse width modulation (PWM) technique. According to the optical-fiber PWM method, the received sensing signal’s pulse width changes when the optical ...
Md. Rajibur Rahaman Khan, Shin-Won Kang
doaj   +1 more source

Enhancing fluorescence excitation and collection from the nitrogen-vacancy center in diamond through a micro-concave mirror

, 2018
We experimentally demonstrate a simple and robust optical fibers based method to achieve simultaneously efficient excitation and fluorescence collection from Nitrogen-Vacancy (NV) defects containing micro-crystalline diamond.
Arumugam, Sri Ranjini, Balasubramanian, Gopalakrishnan, Chang, Huan-Cheng, Duan, Dewen, Isoya, Junichi, Kavatamane, Vinaya Kumar, Onoda, Shinobu, Rahane, Ganesh, Sumiya, Hitoshi, Tzeng, Yan-Kai   +9 more
core   +1 more source

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

Deep learning-based approach for high spatial resolution fibre shape sensing

Communications Engineering
Fiber optic shape sensing is an innovative technology that has enabled remarkable advances in various navigation and tracking applications. Although the state-of-the-art fiber optic shape sensing mechanisms can provide sub-millimeter spatial resolution ...
Samaneh Manavi Roodsari, Sara Freund, Martin Angelmahr, Carlo Seppi, Georg Rauter, Wolfgang Schade, Philippe C. Cattin   +6 more
doaj   +1 more source

Improvement of fiber optic based localized surface plasmon resonance sensor by optical fiber surface etching and Au capping

Micro and Nano Systems Letters, 2019
Fiber optic based localized surface plasmon resonance (FO-LSPR) sensor is one of the biosensors that detects specific biomolecules and can detect the onset of disease.
Se-Woong Bae, Hyeong-Min Kim, Jae-Hyoung Park, Seung-Ki Lee   +3 more
doaj   +1 more source

Ultrafast femtosecond-laser-induced fiber Bragg gratings in air-hole microstructured fibers for high-temperature pressure sensing [PDF]

, 2010
We present fiber Bragg grating pressure sensors in air-hole microstructured fibers for high-temperature operation above 800°C. An ultrafast laser was used to inscribe Type II grating in two-hole optical fibers.
Canning, J, Chen, KP, Grobnic, D, Jewart, CM, Mihailov, SJ, Wang, Q   +5 more
core   +1 more source

Optical Fiber Sensors

, 2011
القياس عن بعد هي تقنية تسمح بقياس البيانات ومراقبتها عن بُعد. يشير عادة إلى اتجاه واحد للمعلومات، أي من المستشعر إلى نظام الاستجواب أو نظام مسجل البيانات. يمكن تعريف القياس عن بعد على أنه فئة فرعية من الاتصالات، وهي طريقة أكثر تعقيدًا لتبادل المعلومات مثل الإنترنت أو المكالمات الهاتفية أو نقل الفيديو.
M. Marcelo, Regina C. Allil
openaire   +3 more sources

Clinical Practice Guideline for Evaluation and Management of Peripheral Nervous System Manifestations in Sjögren's Disease

Arthritis Care &Research, Accepted Article.
Objectives Sjögren's disease is an autoimmune disorder that can impact multiple organ systems, including the peripheral nervous system (PNS). PNS manifestations, which can exist concurrently, include mononeuropathies, polyneuropathies, and autonomic nervous system neuropathies. To help patients and providers in the decision‐making process, we developed
Anahita Deboo, Robert Fox, Katherine M. Hammitt, Julie Frantsve‐Hawley, Matthew C. Baker, Stamatina Danielides, Eduardo De Sousa, Brent P. Goodman, Jennifer K. King, Steven Mandel, Ghaith Noaiseh, Pantelis P. Pavlakis, George Sarka, R. Hal Scofield, Arun Varadhachary, Daniel J. Wallace, Matt Makara, Nancy Carteron, Steven Carsons, In collaboration with the Consensus Expert Panel (CEP) members   +19 more
wiley   +1 more source