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Xuefeng Qiu, Jiandong Wang, Haitao Wang, Chuanjuan Wang, Yuechao Sun and Guangyong Li
As an emerging contaminant, the clogging substances of emitters in biogas slurry drip irrigation systems affect the efficient return and utilization of biogas slurry to the field to a great extent. This can be prevented using acid and chlorination as eng...
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Shanshan Qin, Yanqun Zhang, Jiandong Wang, Chuanjuan Wang, Yan Mo and Shihong Gong
In order to clarify the influences of drip irrigation under different mulch materials on crop yield, field experiments were carried out in the North China Plain for two seasons in 2020 and 2021. The changes in field microenvironment, photosynthetic capac...
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Zerong Wang, Xiaokai Hou, Jiandong Bai and Junmin Wang
The measurement of the cesium (Cs) 5p67d 2D5/2 excited state?s hyperfine splitting intervals and hyperfine interaction constants was experimentally investigated using a ladder-type (852 nm + 698 nm) three-level Cs system (5p66s 2S1/2?5p66p 2P3/2?5p67d 2D...
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Jiandong Duan, Shuai Wang and Li Sun
In this paper, a backstepping sliding mode controller based on a nonlinear disturbance observer (NDO-SMC) is proposed to realize the high-performance speed control of a permanent magnet synchronous motor (PMSM). This paper compares the advantages and dis...
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Wei Zeng, Chao Wang and Jiandong Yang
Hydraulic systems may involve both pipelines and open channels, which challenges the hydraulic transient analysis. In this paper, a method of characteristics (MOC)-finite volume method (FVM) coupling method has been developed with the pipeline modelled u...
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Jiandong Wang, Jiayuan Zhuang, Yumin Su and Xiaosheng Bi
A comparative analysis of the hydrodynamic performance of a planing craft in the monomer-form state (MFS) and trimaran-form state (TFS) was performed, and the inhibition mechanism of twin side-hulls on porpoising instability was evaluated based on the nu...
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Ende Wang, Jinlei Jiao, Jingchao Yang, Dongyi Liang and Jiandong Tian
Keypoint matching is of fundamental importance in computer vision applications. Fish-eye lenses are convenient in such applications that involve a very wide angle of view. However, their use has been limited by the lack of an effective matching algorithm...
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Chao Wang, Jiandong Yang and Håkan Nilsson
A model for simulating vertical water level fluctuations with coupled liquid and gas phases is presented. The Preissmann implicit scheme is used to linearize the governing equations for one-dimensional transient flow for both liquid and gas phases, and t...
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Juan Sui, Jiandong Wang, Shihong Gong, Di Xu and Yanqun Zhang
For improving water scarcity and groundwater pollution from agriculture, two-year experiments (2011?2013) with three water levels (0.3, 0.5 and 0.8 evaporation (E) in 20-cm-diameter pans) and four nitrogen (N) levels (120, 140 and 190 kg·ha-1 in 2012 and...
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Chao Wang, Jiandong Yang and Håkan Nilsson
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Juan Sui, Jiandong Wang, Shihong Gong, Di Xu and Yanqun Zhang
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Fupeng Liu, Jiandong Ma, Zhongzhi Ye, Lijia Wang, Yu Sun, Jianxing Yu, Yuliang Qin, Dongliang Zhang, Wengang Cai and Hao Li
The reliability of liquefied natural gas (LNG) storage tanks is an important factor that must be considered in their structural design. Concrete is a core component of LNG storage tanks, and the geometric uncertainty of concrete aggregate material has a ...
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