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50 results on '"Yang, Chaoyun"'

10. Low-oxygen rare earth steels

Author

Li, Dianzhong, Wang, Pei, Chen, Xing-Qiu, Fu, Paixian, Luan, Yikun, Hu, Xiaoqiang, Liu, Hongwei, Sun, Mingyue, Chen, Yun, Cao, Yanfei, Zheng, Leigang, Gao, Jinzhu, Zhou, Yangtao, Zhang, Lei, Ma, Xiuliang, Dai, Chunli, Yang, Chaoyun, Jiang, Zhonghua, Liu, Yang, and Li, Yiyi

Published
2022
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11. Decoding Feature Maps with Multi-scale Convolutional Kernels

Author

Wu, YiFan, Wei, LiNa, Yang, ChaoYun, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Liu, Qi, editor, Liu, Xiaodong, editor, Cheng, Jieren, editor, Shen, Tao, editor, and Tian, Yuan, editor

Published
2022
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20. Sodium Butyrate Induces Mitophagy and Apoptosis of Bovine Skeletal Muscle Satellite Cells through the Mammalian Target of Rapamycin Signaling Pathway

Author

Ding, Yanling, primary, Wang, Pengfei, additional, Li, Chenglong, additional, Zhang, Yanfeng, additional, Yang, Chaoyun, additional, Zhou, Xiaonan, additional, Wang, Xiaowei, additional, Su, Zonghua, additional, Ming, Wenxuan, additional, Zeng, Ling, additional, Shi, Yuangang, additional, Li, Cong-Jun, additional, and Kang, Xiaolong, additional

Published
2023
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24. Blood transcriptome reveals immune and metabolic-related genes involved in growth of pasteurized colostrum-fed calves

Author

Li, Chenglong, primary, Li, Shuzhen, additional, Yang, Chaoyun, additional, Ding, Yanling, additional, Zhang, Yanfeng, additional, Wang, Xiaowei, additional, Zhou, Xiaonan, additional, Su, Zonghua, additional, Ming, Wenxuan, additional, Zeng, Ling, additional, Ma, Yun, additional, Shi, Yuangang, additional, and Kang, Xiaolong, additional

Published
2023
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25. Rumen and Fecal Microbiota Characteristics of Qinchuan Cattle with Divergent Residual Feed Intake

Author

Zhou, Xiaonan, primary, Ma, Ying, additional, Yang, Chaoyun, additional, Zhao, Zhiyan, additional, Ding, Yanling, additional, Zhang, Yanfeng, additional, Wang, Pengfei, additional, Zhao, Lei, additional, Li, Chenglong, additional, Su, Zonghua, additional, Wang, Xiaowei, additional, Ming, Wenxun, additional, Zeng, Ling, additional, and Kang, Xiaolong, additional

Published
2023
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30. Bi-Temporal change detection of high-resolution images by referencing time series medium-resolution images.

Author

Hao, Ming, Yang, Chaoyun, Lin, Huijing, Zou, Lanlan, Liu, Shu, and Zhang, Hua

Subjects
*FALSE alarms, *REMOTE sensing, *SEASONS, *TIME series analysis
Abstract

Seasonal changes usually exist and cause false alarms in the bi-temporal change detection from high-resolution remote sensing images. It is difficult to remove these false alarms only using bi-temporal images for traditional change detection methods. A change detection method is proposed to remove seasonal false alarms in bi-temporal change detection by introducing time series information of medium-resolution remote sensing images. First, the mid-resolution time series results are mapped to the ground objects obtained by multiscale segmentation of high-resolution remote sensing images. Second, set the thresholds for the proportion of each category of pixels in the object to obtain high-resolution time series results. Finally, the high-resolution change detection results are optimized by the improved high-resolution time series results. Experimental results show that this method can optimize the results of high-resolution change detection, and the accuracy of this method was improved by at least 0.23 than that of traditional change detection by reducing seasonal errors. The proposed method was an effective change detection approach for high-resolution images to reduce detection errors due to seasonal differences. [ABSTRACT FROM AUTHOR]

Published
2023
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35. Weighted Gene Co-Expression Network Analysis Identifies Key Modules and Central Genes Associated With Bovine Subcutaneous Adipose Tissue

Author

Sheng, Hui, primary, Pan, Cuili, additional, Wang, Shuzhe, additional, Yang, Chaoyun, additional, Zhang, Junxing, additional, Hu, Chunli, additional, Hu, Honghong, additional, Feng, Xue, additional, Yang, Mengli, additional, Lei, Zhaoxiong, additional, Gao, Yuhong, additional, Wang, Zhong, additional, and Ma, Yun, additional

Published
2022
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44. Effects of rare earth elements on inclusions and impact toughness of high-carbon chromium bearing steel

Author

Yang Chaoyun, Yikun Luan, Dianzhong Li, and Yiyi Li

Subjects
Materials science, Polymers and Plastics, Rare earth, chemistry.chemical_element, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, law.invention, Carbide, Chromium, law, Materials Chemistry, Bearing (mechanical), Impact toughness, Precipitation (chemistry), Mechanical Engineering, Metallurgy, technology, industry, and agriculture, Metals and Alloys, 021001 nanoscience & nanotechnology, 0104 chemical sciences, chemistry, Mechanics of Materials, Volume fraction, Ceramics and Composites, Inclusion (mineral), 0210 nano-technology
Abstract

High-carbon chromium bearing steels with different rare earth (RE) contents were prepared to investigate the effects of RE on inclusions and impact toughness by different techniques. The results showed that RE addition could modify irregular Al2O3 and MnS into regular RE inclusions. With the increase of RE content, the reaction sequence of RE and potential inclusion forming elements should be O, S, As, P and C successively. RE inclusions containing C might precipitate in molten steel and solid state, but the precipitation temperature was significantly higher than that of carbides in high-carbon chromium bearing steel. For experimental bearing steels, the volume fraction of inclusions increased steadily with the increase of RE content, but smaller and more dispersed inclusions could be obtained by 0.018% RE content compared with bearing steel without RE, whereas the continuous increase of RE content led to an increasing trend for inclusion size and a gradual deterioration for inclusion distribution. RE addition could improve the transverse impact toughness and isotropy of bearing steel, and for modified high-carbon chromium bearing steel by RE alloying, the increase of RE content continuously increased both transverse and longitudinal impact toughness until excessive RE addition.

Published
2019

45. Very high cycle fatigue properties of bearing steel with different aluminum and sulfur content

Author

Dianzhong Li, Yikun Luan, Yiyi Li, and Yang Chaoyun

Subjects
Materials science, Bearing (mechanical), Mechanical Engineering, chemistry.chemical_element, Fracture mechanics, 02 engineering and technology, 021001 nanoscience & nanotechnology, Microstructure, Industrial and Manufacturing Engineering, law.invention, 020303 mechanical engineering & transports, 0203 mechanical engineering, chemistry, Mechanics of Materials, Aluminium, law, Modeling and Simulation, Martensite, Fracture (geology), General Materials Science, Grain boundary, Composite material, 0210 nano-technology, Stress intensity factor
Abstract

This study aims to clarify the effects of aluminum and sulfur content on fatigue property together with corresponding crack initiation and propagation behavior of bearing steel in the very high cycle fatigue (VHCF) regime. For these purposes, ultrasonic tensile-compression fatigue tests were carried out on fatigue specimens with different directions extracted from bearing steel bars containing different aluminum and sulfur content. As a result, high aluminum content in bearing steel leads to worse fatigue property by forming a large collection area of Al2O3 particles. MnS inclusions can cause fatigue failure of low sulfur bearing steel at the 45-degree angle and contribute to fatigue anisotropy. However, there are no MnS inclusions to be found at crack initiation region of failed specimens with ultralow sulfur content. For the VHCF fracture of bearing steel, fracture surface can be simply divided into four different areas according to crack propagation path except fatigue source. The stress intensity factor at the periphery of fine granular area (FGA) ΔKFGA can be regarded as the critical driving force for crack propagating through martensite laths. In addition, crack initiation and propagation are the result of mutual coordination and matching of the driving force ΔK, crack propagation speed and microstructure. Dislocations and precipitated carbides play an important role in the formation of FGA by helping form the corresponding nanoscale grain boundary.

Published
2018

46. Research progress on inosine monophosphate deposition mechanism in chicken muscle.

Author

Huang, Zengwen, Zhang, Juan, Gu, Yaling, Cai, Zhengyun, Feng, Xiaofang, Yang, Chaoyun, and Xin, Guosheng

Subjects
INOSINE monophosphate, UMAMI (Taste), POULTRY breeding, CHICKEN as food, POULTRY
Abstract

With the continuous improvements in human diet, there is an ever-increasing demand for high-quality chicken, so it is particularly important for poultry breeders to carry out the breeding of high-quality broilers in a timely fashion. Inosine monophosphate (IMP) is a flavor-enhancing substance, which plays a critical role in the umami taste of the muscle, making the content of IMP an important umami taste indicator. Currently, research on the deposition mechanism of IMP in chicken is not only necessary for chicken breeders to promote the production of high-quality meat and poultry but also to meet the human demand for chicken meat. In this paper, the research history of IMP, its structure and taste mechanisms, the pathway and influencing factors of de novo IMP synthesis, and the key genes regulating IMP synthesis and metabolism are briefly summarized. Our aim was to lay a theoretical foundation and provide scientific background and research directions for further research on high-quality broiler breeding. [ABSTRACT FROM AUTHOR]

Published
2022
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49. Very high cycle fatigue behavior of bearing steel with rare earth addition

Author

Yiyi Li, Dianzhong Li, Yang Chaoyun, Naeem ul Haq Tariq, and Yikun Luan

Subjects
Materials science, Bearing (mechanical), Mechanical Engineering, chemistry.chemical_element, Fracture mechanics, 02 engineering and technology, 021001 nanoscience & nanotechnology, Fatigue limit, Industrial and Manufacturing Engineering, law.invention, Cracking, Chromium, 020303 mechanical engineering & transports, 0203 mechanical engineering, chemistry, Mechanics of Materials, law, Modeling and Simulation, Volume fraction, Fracture (geology), General Materials Science, Inclusion (mineral), Composite material, 0210 nano-technology
Abstract

This study aims to clarify the effect of rare earth (RE) addition on the very high cycle fatigue (VHCF) behavior of high-carbon chromium bearing steel. For this purpose, ultrasonic tension-compression fatigue tests were carried out on specimens extracted from bearing steels with and without RE addition. As a result, RE addition can prolong the fatigue life of bearing steel over 10 times and improve the fatigue limit at 109 cycles by 9.4% from 720 MPa to 788 MPa, which mainly result from the modification of RE elements to common CaO-Al2O3-MgO-SiO2-CaS inclusions, forming complex RE inclusions and leading to the decrease of inclusion size and the volume fraction of inclusions in bearing steel with RE addition. On the VHCF fracture of bearing steels with and without RE addition, both internal cracking mode and interface cracking mode exist at inclusions. Compared with bearing steel with RE addition, bearing steel without RE addition exhibits a longer crack initiation life due to stronger internal binding force of complex inclusions and interfacial binding force between complex inclusions and the matrix. However, smaller complex RE inclusions make crack propagation life of the former significantly longer than that of the latter. In addition, fine granular area (FGA) can be used to estimate the fatigue limit of different fatigue life in the VHCF regime and the fatigue limit at 109 cycles evaluated based on FGA indicates an error of around 2% with respect to the fatigue limit measured by staircase method.

Published
2020

50. Effect of rare earth elements on microstructure and mechanical properties of bainite/martensite bearing steel

Author

Li, Zan, Liu, Peng, Yang, Chaoyun, Li, Xing, Luan, Yikun, and Li, Dianzhong

Abstract

This study aims to investigate the effect of rare earth (RE) elements on the microstructure and mechanical properties of bainite/martensite (B/M) bearing steel. For this purpose, GCr15 bearing steels with different RE contents were prepared and analyzed after experiencing B/M heat treatment. The results show that RE addition significantly delays the bainite transformation by reducing grain boundary energy and carbon diffusion rate, leading to a reduction of bainite volume fraction from 27.3% for bearing steel without RE addition to less than14.5% for RE-treated steels, and the corresponding increase of martensite volume fraction from 39.1% to more than 50.2%. The volume fraction of retained austenite (RA) remains nearly unchanged. Meanwhile, the width of the bainite needles gets refined in RE-treated steels while martensite and RA blocks become bigger. Compared with bearing steel without RE addition, larger RA blocks in RE-treated steels unexpectedly have higher stability due to higher dislocation density and surrounding phases strength. Accompanied by the change of microstructure, the hardness in RE-Treated steels improves slightly, while the fracture toughness dramatically deteriorates which can be directly explained by two mechanical phenomena during toughness test. The one is that the RA in RE-treated steels is harder to transform into martensite and thus consumes less energy; The other one gives that cracks tend to propagate along grain boundaries or martensite interfaces with less energy consumption easily in RE-treated steels instead of breaking off bainite.

Published
2022
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