Results 21 to 30 of about 34,409 (262)

An All-Solid Dispersion-Compensating Photonic Crystal Fiber Based on Mode Coupling Mechanism in Dual-Concentric Core

International Journal of Optics, 2020
An all-solid dispersion-compensating photonic crystal fiber based on mode coupling mechanism in dual-concentric core has been proposed. The mode coupling characteristics, dispersion, confinement loss of the fiber, and the influence on dispersion of some ...
Zhaolun Liu, Chunlan Zhang, Yuwei Qu
doaj   +1 more source

Optical Fiber Probe Microcantilever Sensor Based on Fabry–Perot Interferometer

Sensors, 2022
Optical fiber Fabry–Perot sensors have long been the focus of researchers in sensing applications because of their unique advantages, including highly effective, simple light path, low cost, compact size, and easy fabrication.
Yongzhang Chen, Yiwen Zheng, Haibing Xiao, Dezhi Liang, Yufeng Zhang, Yongqin Yu, Chenlin Du, Shuangchen Ruan   +7 more
doaj   +1 more source

Polymer Waveguide Sensor Based on Evanescent Bragg Grating for Lab-on-a-Chip Applications

Sensors
In this work, an evanescent Bragg grating sensor inscribed in a few-mode planar polymer waveguide was integrated into microchannel structures and characterized by various chemical applications.
Zhenyu Zhang, Ahmad Abdalwareth, Günter Flachenecker, Martin Angelmahr, Wolfgang Schade   +4 more
doaj   +1 more source

Classification of Human Motions Using Micro-Doppler Radar in the Environments with Micro-Motion Interference

Sensors, 2019
Human motion classification based on micro-Doppler effect has been widely used in various fields. However, the motion classification performance would be greatly degraded if the wireless environment has non-target micro-motion interference. In this case,
Xiaolin Ma, Running Zhao, Xinhua Liu, Hailan Kuang, Mohammed A. A. Al-qaness   +4 more
doaj   +1 more source

A Wearable Sandwich Heterostructure Multimode Fiber Optic Microbend Sensor for Vital Signal Monitoring

Sensors
This work proposes a highly sensitive sandwich heterostructure multimode optical fiber microbend sensor for heart rate (HR), respiratory rate (RR), and ballistocardiography (BCG) monitoring, which is fabricated by combining a sandwich heterostructure ...
Fumin Zhou, Binbin Luo, Xue Zou, Chaoke Zou, Decao Wu, Zhijun Wang, Yunfang Bai, Mingfu Zhao   +7 more
doaj   +1 more source

Self‐Powered Stretchable Mechanoluminescent Optical Fiber Strain Sensor

Advanced Intelligent Systems, 2021
Strain sensors that can work sustainably and continuously without any external power supply are highly desirable for future wearable and implantable devices.
Haohua Liang, Yongcheng He, Meihua Chen, Licheng Jiang, Zhishen Zhang, Xiaobo Heng, Lin Yang, Yanpeng Hao, Xiaoming Wei, Jiulin Gan, Zhongmin Yang   +10 more
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Research on the estimation method of the point-of-interest (POI) displacement for ultra-precision flexible motion system based on functional optical fiber sensor

Mechanics & Industry, 2021
This paper proposes a POI displacement estimation method based on the functional optical fiber sensor and the phase modulation principle to improve the POI displacement estimation accuracy. First, the relation between the object deformation and the optic
Li Yujie, Zhang Ming, Zhu Yu
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RIPK4 function interferes with melanoma cell adhesion and metastasis

Molecular Oncology, EarlyView.
RIPK4 promotes melanoma growth and spread. RIPK4 levels increase as skin lesions progress to melanoma. CRISPR/Cas9‐mediated deletion of RIPK4 causes melanoma cells to form less compact spheroids, reduces their migratory and invasive abilities and limits tumour growth and dissemination in mouse models.
Norbert Wronski, Sławomir Lasota, Ewelina Madej, Anna A. Brożyna, Małgorzata Szczygieł, Agnieszka Harazin‐Lechowska, Jan Czerbniak, Janusz Rys, Jaroslaw Czyz, Agnieszka Wolnicka‐Glubisz   +9 more
wiley   +1 more source

Bio-Chemical Sensors Based on Excessively Tilted Fiber Grating

Photonic Sensors
Excessively tilted fiber gratings (ExTFGs) are a type of special optical fiber grating device different from traditional fiber Bragg gratings, long period fiber gratings, and tilted fiber Bragg gratings.
Fudan Chen, Hong Gu, Binbin Luo, Shenghui Shi   +3 more
doaj   +1 more source

Steel Wire Rope Damage Width Identification Method Based on Residual Networks and Multi-Channel Feature Fusion

Machines
In order to ensure the safety of steel wire rope in various application scenarios, it is particularly important to quantitatively detect the defects of wire rope. Complex detection conditions affect the detection efficiency of wire rope. Therefore, based
Yan Peng, Junde Liu, Junjie He, Yongjun Qiu, Xie Liu, Le Chen, Fengfeng Yang, Bulong Chen, Bin Tang, Yuhan Wang   +9 more
doaj   +1 more source