Jianhui Cheng

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Nonaqueous capillary electrophoresis (NACE) is very well suited for online coupling with mass spectrometry due to the relatively high volatility and low surface tension of most organic solvents. Here we present a quantitative NACE-ESI-MS/MS method for separating and determining physcion, chrysophanol, and aloe-emodin in rhubarb. Dantron was used as an(More)
In order to make traditional point cloud slicing algorithm suitable for robotic spray path planning of complex surface, four improvements are put forward in this paper. Firstly, adaptively choose the dominant eigenvector direction of oriented bounding box of spray target as the normal vector direction of the slicing plane. Secondly, propose(More)
Plant height is one of the most important agronomic traits that could affect both crop yield and quality. Among all the hormones, gibberellins are crucial to regulate plant height. Cloning and molecular mechanism research of the plant height genes associated gibberellins have extremely important value for the regulation of crop growth and agricultural(More)
TD-SCDMA Industry Alliance in China made a 3G commercial test in Baoding, a key region. We investigated the development of 3G in the medium and small cities. The focus of this investigation is mobile phone reading. According to the analysis, at present mobile reading is a 3G service which has a large audience. Therefore, the current mobile phone reading has(More)
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