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| 1 | DYNAMIC CHARACTERISTICS OF LAG VIBRATION OF A WIND TURBINE BLADE显示文摘Lagwise dynamic characteristics of a wind turbine blade subjected to unsteady aerodynamic loads are studied in this paper.The partial diferential equations governing the coupled longitudinal-transverse vibration of the blade with large bending deflection are obtained by applying Hamilton’s principle.The modal problem of the coupled vibration is handled by using the method of numerical integration of Green’s function.Influences of the rotating speed,the pitch angle,the setting angle,and the aerodynamic loads on natural frequencies are discussed.Results show that:(1)Lagwise natural frequencies ascend with the increase of rotating speed;efects of the rotating speed on low-frequencies are dramatic while these efects on high-frequencies become less.(2)Influences of the pitch angle on natural frequencies are little;in the range of the normal rotating speed,the first frequency ascends with the increase of the absolute value of the pitch angle,while it is contrary to the second and third frequencies.(3)Efects of the setting angle on natural frequencies depend on the rotating speed;influences are not significant at low speed,while they are dramatic on the first frequency at high speed.(4)Efects of the aerodynamic loads on natural frequencies are very little;frequencies derived from the model considering aerodynamic loads are smaller than those from the model neglecting aerodynamic loads;relative errors of the results corresponding to two models ascend with the increase of the absolute value of the setting angle. | Yinghui Li Liang Li Qikuan Liu Haiwei Lv | 2013 | Acta Mechanica Solida Sinica2013，26，6： | 3 |
| 2 | Qualitative Analysis of a Predator-prey Model with Funetional Response 显示文摘 | LIU Qikuan ZHANG Zhaoqiang CHEN Chong | 2010 | Journal of Chongqing University of Technology2010，24，1： | 1 |
| 3 | Telomerase immortalization of human neural progenitor cells 显示文摘 | Bai Yun Hu Qikuan Li Xiaoxia | 2004 | Neuroreport2004，15，2： | 1 |
| 4 | The EGFR-Sox2-EGFR feedback loop positively regulates the selfrenewal of nerual precursor cells显示文摘 | Qikuan Hu Lirong Zhang Jinhua Wen | | 0，，02： | 1 |
| 5 | Histone methyltransferase G9a and H3K9 dimethylation inhibit the self-renewal of glioma cancer stem cells显示文摘 | Hong Tao Haiying Li Yanhuang Su Danni Feng Xilong Wang Chun Zhang Hui Ma Qikuan Hu | 2014 | Molecular and Cellular Biochemistry . 2014 (1-2)2014，，1： | 1 |
| 6 | A SOLUTION OF MINIMUM NORM FOR QUANTITATIVE PHASE ANALYSIS BY STANDARDLESS X-RAY DIFFRACTION显示文摘A new expression of quantitative phase analysis by standardless X-ray diffraction has beenderived using intensity matrix of vector modulus.The criterion of standardless X-raydiffraction analysis was suggested,so as to separate the diffraction pattern of every phasefrom that of sample.The optimal solution could be obtained by the least squares regression. | ZHAO Han GONG Yansheng SHEN Jingyuan RUAN Qikuan JIN Jialing ZHU Hanyu Research Institute of Qiqihar Steel Works,Fulaerji,China | 1991 | Acta Metallurgica Sinica(English Letters)1991，4，9： | 0 |
| 7 | The synthesis,biological activities and applications of protein-polysaccharide conjugates in food system:a review显示文摘Proteins are important ingredients in the food industry for their excellent nutritional,functional and biological properties,while the application is limited by their sensitivity to environmental stresses such as high temperature,pH changes and ionic strength.The Maillard reaction and transglutaminase-catalyzed glycosylation are the two main effective glycosylation ways to improve the stability and biological properties of proteins by mainly attaching monosaccharides or disaccharides to proteins,while protein–polysaccharide conjugates with superior functional properties are rarely discussed.Therefore,the present study reviews current state of the synthesis,biological activities and applications in the food system of protein–polysaccharide conjugates formed via the Maillard reaction and transglutaminase-catalyzed glycosylation.The biological activities including antioxidant,antimicrobial and immunomodulatory activities of proteins are improved after glycosylation,and the formed protein–polysaccharide conjugates can be applied to stabilize emulsions or deliver bioactive compounds in foods.The bioactivities produced under precisely controlled glycosylation conditions would make protein–polysaccharide conjugates a promising application in foods with healthy properties. | Shixuan Zhang Kai Wang Yongtao Qin Shunyi Zhu Qikuan Gao Diru Liu | 2023 | Food Quality and Safety2023，7，1： | 0 |
| 8 | A SOLUTION OF MINIMUM NORM FOR QUANTITATIVE PHASE ANALYSIS BY STANDARDLESS X-RAY DIFFRACTION显示文摘A new expression of quantitative phase analysis by standardless X-ray diffraction has beenderived using intensity matrix of vector modulus,The criterion of standardless X-raydiffraction analysis was suggested,so as to separate the diffraction pattern of every phasefrom that of sample.The optimal solution could be obtained by the least squares regression. | ZHAO Han GONG Yansheng SHEN Jingyuan RUAN Qikuan JIN Jialing ZHU Hanyu Research Institute of Qiqihar Steel Works,Fulaerji,China GONG Yansheng Senior Engineer,Research Institute of Qiqihar Steel Works,Filaerji 161041,China | 1990 | Acta Metallurgica Sinica(English Letters)1990，3，9： | 0 |
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