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6 results on '"Yang, Haiju"'

1. Feature point extraction of high-resolution image based on multi-thread mode

Author

Haimeng Zhao, Peng Sun, Sun Yiyuan, Mingchun Wang, and Yang Haiju

Subjects
Multi-core processor, Speedup, Computer science, computer.internet_protocol, business.industry, Feature extraction, Thread (computing), law.invention, Internet protocol suite, Software, Computer engineering, law, Feature (computer vision), Internet Protocol, business, computer
Abstract

To solve the poor real-time problem of SIFT algorithm, the cooperative operation mechanism of multi-core algorithm on multi-thread mode is designed based on OpenMP software runtime. First, a collaboration mechanism between multiple processor cores is designed based on the multi-core operating framework. Then, a high-speed interaction method is designed for the data between different platforms based on the TCP/IP protocol. Finally, the experiment shows that this scheme can greatly make the processing speed up for highresolution image and effectively solves the real-time problem of the algorithm.

Published
2020

5. Sensitivity of Scattering and Absorbing Aerosol to Top of Atmosphere Polarization Pattern

Author

Yang Haiju, Yi Wu, Chuan Xiong, Lihe Li, Peng Sun, Jianfang Zhu, and Haimeng Zhao

Subjects
Atmospheric radiative transfer codes, Materials science, Optics, Linear polarization, Scattering, business.industry, business, Polarization (waves), Aerosol
Abstract

In this letter we simulated the top of atmosphere (TOA) polarization patterns with scattering and absorbing aerosol situations through a successive orders of scattering (SOS) radiative transfer model. In the analysis of single scattering properties of aerosol particles, absorbing aerosol has an obvious different pattern from those non-absorbing aerosols. The TOA Degree of Linear Polarization (DoLP) decreases significantly when scattering aerosol optic depth (AOD) increases. While for absorbing aerosol case, the TOA DoLP keep stable or even increases when aerosol absorbing AOD increases, which suggest a way to retrieve absorbing property of aerosol.

Published
2020

6. Comparative analysis of fingerprint and chemical model of Danggui before and after wash with wine.

Author

Liu Caifeng, Liang Jun, Yang Haiju, Liu Leilei, Zhang Yuming, Bai Jie, and Du Shouying

Abstract

Objective To establish the fingerprint of Danggui ( Chinese Angelica, Radix Angelicae Sinensis) with HPLC before and after wash with wine, and make comparative analysis of the principal components, quantitative analysis and extraction rate analysis to provide reference for its quality control. Methods Gradient elution was performed with HPLC with InertSustainSwift™ C18(250 mm X 4.6 mm, 5 jxm) as the column and acetonitrile -0. 1% phosphoric acid solution as the mobile phase. The UV detection wavelength was 230 nm, the volume flow rate was 1 mL/min and the sample size was 15 jxL. The fingerprints of Danggui before and after wash with wine were established and compared. Principal component analysis, quantitative analysis and extraction rate analysis were carried out. Results HPLC fingerprints of crude Danggui and wine washed Danggui were established, and 16 common peaks were identified among 30 batches of samples. Fingerprints of 15 batches of Danggui before and after wine wash were compared with the reference fingerprints, revealing similarities greater than 0. 9. The similarity of fingerprints between Danggui and wine washed Danggui is also greater than 0. 9. In the principal component analysis, the samples before and after wash were gathered together. The contents of ferulic acid in 15 batches of Danggui were evaluated before and after wine wash, showing that the ferulic acid contents in the herbs after wash with wine were lower than those in the crude herbs. At the same time, the 15 batches of crude Danggui had a higher extraction rate than the wine washed Danggui. Conclusion The method established in this study is stable and feasible, providing reference for comparison and contrast of the similarities and differences of Danggui before and after wine wash and for its quality control. Incorporating multiple methods, this study is conducive to comprehensive evaluation of Danggui before and after wine wash. [ABSTRACT FROM AUTHOR]

Published
2020
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