Results 21 to 30 of about 302,870 (324)

In-situ Detection Method for Microplastics in Water by Polarized Light Scattering

Frontiers in Marine Science, 2021
Microplastics (MPs) have become the widespread contaminants, which raises concerns on their ecological hazards. In-situ detection of MP in water bodies is essential for clear assessment of the ecological risks of MPs.
Tong Liu, Tong Liu, Shijun Yu, Shijun Yu, Xiaoshan Zhu, Ran Liao, Ran Liao, Zepeng Zhuo, Zepeng Zhuo, Yanping He, Hui Ma, Hui Ma   +11 more
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Correlation analysis and application investigation of multi-angle simultaneous polarization measurement data and concentration of suspended particulate matter in the atmosphere

Frontiers in Environmental Science, 2022
Determining the composition, particle size distribution and concentration changes of suspended particulate matter in the atmosphere is important for evaluating the quality of air and its impact on public health.
Xuan Yuan, Jiawei Song, Jiawei Song, Nan Zeng, Jun Guo, Hui Ma, Hui Ma   +6 more
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Polarization Image Sensor for Highly Sensitive Polarization Modulation Imaging Based on Stacked Polarizers [PDF]

IEEE Transactions on Electron Devices, 2022
In this article, We demonstrated an image sensor for detecting changes in polarization with high sensitivity. For this purpose, we constructed an optical system with a two-layer structure, comprising an external polarizer and polarizers on a pixel array.
Kiyotaka Sasagawa, Ryoma Okada, Makito Haruta, Hironari Takehara, Hiroyuki Tashiro, Jun Ohta   +5 more
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Unsupervised learning of pixel clustering in Mueller matrix images for mapping microstructural features in pathological tissues

Communications Engineering, 2023
In histopathology, doctors identify diseases by characterizing abnormal cells and their spatial organization within tissues. Polarization microscopy and supervised learning have been proved as an effective tool for extracting polarization parameters to ...
Jiachen Wan, Yang Dong, Yue Yao, Weijin Xiao, Ruqi Huang, Jing-Hao Xue, Ran Peng, Haojie Pei, Xuewu Tian, Ran Liao, Honghui He, Nan Zeng, Chao Li, Hui Ma   +13 more
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Comparative Study of Modified Mueller Matrix Transformation and Polar Decomposition Parameters for Transmission and Backscattering Tissue Polarimetries

Applied Sciences, 2021
Mueller matrix polarimetry is widely used in biomedical studies and applications, for it can provide abundant microstructural information about tissues.
Binguo Chen, Yuxiang Lan, Haoyu Zhai, Liangyu Deng, Honghui He, Hua Mao, Hui Ma   +6 more
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Polarization Measurements and Evaluation Based on Multidimensional Polarization Indices Applied in Analyzing Atmospheric Particulates

Applied Sciences, 2021
Online identification and characterization of suspended aerosols can provide a scientific basis for understanding aerosol transformations, quantitatively evaluating the impacts on air quality, public health, and the source apportionment of different ...
Riwei Liao, Wei Guo, Nan Zeng, Jun Guo, Yonghong He, Huige Di, Dengxin Hua, Hui Ma   +7 more
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Mueller Matrix Imaging Optimized by Uniform Illumination

Frontiers in Physics, 2022
In this study, we present a flat-field Mueller matrix imaging system to reduce the reconstruction error caused by critical illumination. This study demonstrates that the signal-to-noise ratio (SNR) of the reconstructed images is improved by about eight ...
Wei Guo, Wei Guo, Jiawei Song, Jiawei Song, Nan Zeng, Hui Ma, Hui Ma, Hui Ma   +7 more
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Evaluating Tissue Mechanical Properties Using Quantitative Mueller Matrix Polarimetry and Neural Network

Applied Sciences, 2022
Evaluation of the mechanical properties of biological tissues has always been an important issue in the field of biomedicine. The traditional method for mechanical properties measurement is to perform in vitro tissue deformation experiments.
Changjiang Mi, Conghui Shao, Honghui He, Chao He, Hui Ma   +4 more
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Polarization Aberrations in High-Numerical-Aperture Lens Systems and Their Effects on Vectorial-Information Sensing

Remote Sensing, 2022
The importance of polarization aberrations has been recognized and studied in numerous optical systems and related applications. It is known that polarization aberrations are particularly crucial in certain photogrammetry and microscopy techniques that ...
Yuanxing Shen, Binguo Chen, Chao He, Honghui He, Jun Guo, Jian Wu, Daniel S. Elson, Hui Ma   +7 more
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A Smartphone-Based Biosensor for Non-Invasive Monitoring of Total Hemoglobin Concentration in Humans with High Accuracy

Biosensors, 2022
In this paper, we propose a smartphone-based biosensor for detecting human total hemoglobin concentration in vivo with high accuracy. Compared to the existing biosensors used to measure hemoglobin concentration, the smartphone-based sensor utilizes the ...
Zhipeng Fan, Yong Zhou, Haoyu Zhai, Qi Wang, Honghui He   +4 more
doaj   +1 more source