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127 results on '"Zhou, Yinjun"'

5. Study on Mathematical Models of Grid Turbulence

Author

Han, Junfeng, Li, Zhijing, Zhou, Yinjun, Wu, Huali, Chan, Albert P. C., Series Editor, Hong, Wei-Chiang, Series Editor, Mellal, Mohamed Arezki, Series Editor, Narayanan, Ramadas, Series Editor, Nguyen, Quang Ngoc, Series Editor, Ong, Hwai Chyuan, Series Editor, Sachsenmeier, Peter, Series Editor, Sun, Zaicheng, Series Editor, Ullah, Sharif, Series Editor, Wu, Junwei, Series Editor, Zhang, Wei, Series Editor, Li, Dayong, editor, Zhang, Yu, editor, and Luan, Yalin, editor

Published
2023
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6. Spatiotemporal Evolution Characteristics and Influencing Factors of Incoming Water and Sediment in Three Gorges Reservoir

Author

Chen, Peng, Lu, Jinyou, Jin, Zhongwu, Zhou, Yinjun, Tang, Rouxin, Liu, Zhaoxi, Han, Qiuba, di Prisco, Marco, Series Editor, Chen, Sheng-Hong, Series Editor, Vayas, Ioannis, Series Editor, Kumar Shukla, Sanjay, Series Editor, Sharma, Anuj, Series Editor, Kumar, Nagesh, Series Editor, Wang, Chien Ming, Series Editor, Li, Yun, editor, Hu, Yaan, editor, Rigo, Philippe, editor, Lefler, Francisco Esteban, editor, and Zhao, Gensheng, editor

Published
2023
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28. Survival benefit after neoadjuvant or adjuvant radiotherapy for stage II–III gastroesophageal junction adenocarcinoma: A large population-based cohort study

Author

Zuo, Zhichao, primary, Peng, Yafeng, additional, Zeng, Ying, additional, Lin, Shanyue, additional, Zeng, Weihua, additional, Zhou, Xiao, additional, Zhou, Yinjun, additional, Li, Bo, additional, Ma, Jie, additional, Long, Mingju, additional, Cao, Shenghui, additional, and Liu, Yang, additional

Published
2022
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43. Channel Morphological Characteristics and Morphodynamic Processes of Large Braided Rivers in Response to Climate‐Driven Water and Sediment Flux Change in the Qinghai‐Tibet Plateau

Author

He, Yucong, Li, Zhiwei, Xia, Junqiang, Deng, Shanshan, and Zhou, Yinjun

Abstract

With rising air temperature and precipitation, water and sediment fluxes in the Source Region of the Yangtze River (SRYR) have increased since 2000s. Nonetheless, the response of braided river morphology to climate‐driven water and sediment flux change is still unknown. Water bodies of 9 large braided rivers from 1990 to 2020 were extracted based on Google Earth Engine platform, and impacts of climate change on morphological indices and morphodynamic processes were quantified. A new segmentation method is presented to more precisely extract braided river water body when the branch width is less than an image pixel size. The warming and wetting trend led to vegetation cover increase. With the increase of water flux, the water area of each braided reach has increased in both flood and non‐flood season. The 3–5 years mean annual erosion and accretion intensity (newly proposed in this study) of the channel shows three different trends of increasing, weakening, and unchanged over time. These three trends can be classified into three patterns in response to climate‐change driven water and sediment flux change in the SRYR as follows: sediment increase constrained pattern (weakening or unchanged), sediment increase dominated pattern (increasing), and water increase dominated pattern (increasing or unchanged). In summary, the braided rivers in the SRYR showing consistent increasing of water area, general expansion of active channel, and increasing of erosion and accretion intensity for some of the rivers, with the climate‐driven increasing water and sediment flux. A new method of braided water body extraction improves accuracy of recognitionThe warming and wetting trend has led to the more durative inundation of braided rivers since 2000s and consistent expansion of the channelMean annual channel erosion and accretion intensity differently responds to the increase of water and sediment flux in nine braided rivers A new method of braided water body extraction improves accuracy of recognition The warming and wetting trend has led to the more durative inundation of braided rivers since 2000s and consistent expansion of the channel Mean annual channel erosion and accretion intensity differently responds to the increase of water and sediment flux in nine braided rivers

Published
2024
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50. Influence of turbid flood water release on sediment deposition and phosphorus distribution in the bed sediment of the Three Gorges Reservoir, China

Author

Tang, Xianqiang, Li, Rui, Wu, Min, Zhao, Weihua, Zhao, Liangyuan, Zhou, Yinjun, Bowes, Michael J., Tang, Xianqiang, Li, Rui, Wu, Min, Zhao, Weihua, Zhao, Liangyuan, Zhou, Yinjun, and Bowes, Michael J.

Abstract

Excessive phosphorus (P) loading was identified as an urgent problem during the post-Three Gorges Reservoir (TGR) period. Turbid water with high suspended sediment loads has been periodically released during the flood season to mitigate sediment deposition in the TGR, but limited attention has been paid to its effect on the distribution of P in bed sediment within the reservoir. In this study, field surveys, historical monitoring data related to sediment deposition, and physiochemical properties and the fractional P content in the mainstream surface sediment and representative column sediment, were used to investigate the effect of turbid flood water release on P distribution in bed sediment. The results revealed that turbid flood water release could discharge approximately 20% of the suspended sediment inflow entering the TGR. Additionally, both the particle size of the inflow sediment and suspended sediment flux tended to decline, and the deposited sediment volume tended to constantly increase in the TGR at a rate of 0.117 billion tonnes per year between 2004 and 2016. The median particle size (MPS) was larger for surface sediment obtained in the flood season than for that obtained in the dry season, and the MPS tended to increase with an increase in the sediment depth from 0 to 20 cm. The total phosphorus (TP) content in sediment ranged from 2.6% to 17.5% lower in the flood water releasing period than in the non-flood water storing period. However, no consistent variation was detected for the vertical distribution of P fraction in the top 20 cm of bed sediment. Compared with lakes with slow deposition rates, the TGR showed a rapid sedimentation rate of >1.0 m/y, which mostly resulted in the uniform distribution of the surface sediment P fraction.

Published
2019

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