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Articles by Dong Gao
Total Records ( 3 ) for Dong Gao
  Dong Gao , Xin Xu and Xin Ma
  In recent years, simulation technology has been widely used for operator training, experiments and research of control strategy in chemical process. However it is difficult to evaluate the results of operator training, experiments and research. A general automatic scoring framework is proposed for chemical simulation process. In the framework, chemical simulation process is divided into five aspects: Operation, quality, safety, consumption, production. In the aspects, the results of operator training, experiments and research can be evaluated and scored automatically. Basing on the framework, an automatic scoring system is designed and developed. The system is developed as a Dynamic Link Library (DLL) and can supply automatic scoring for various chemical simulation systems.
  Chen Zi-Long , Zhu Da-Zhou , Wang Cheng , Zheng Ling , Dong Gao and Zhao Chun-Jiang
  Canopy temperature is an important factor of crop yield. How to test the canopy temperature for an effective prediction of crop yield is an important content of breeding research. In this study, the canopy temperature of winter wheat during their filling stage and mature stage were gained by infrared imager. Results demonstrated that the absolute canopy temperature and morning-noon temperature difference of the winter wheat are significantly negative correlated with the yield. During the filling stage, the yield (dry weight) showed a correlation coefficient (r) with the absolute canopy temperature in the morning of -0.63, -0.75 with the absolute canopy temperature at noon and -0.74 with the absolute canopy temperature in the afternoon. Meanwhile, the correlation coefficients between the yield (fresh weight) and above three absolute canopy temperatures were -0.59, -0.68 and -0.68, respectively. During the mature stage, the yield (dry weight) showed a correlation coefficient with morning-noon temperature difference of -0.76 and -0.56 with the morning-afternoon temperature difference and -0.54 with the noon-afternoon temperature difference. Meanwhile, the correlation coefficients between the yield (fresh weight) and above three temperature differences were -0.68, -0.58 and -0.40, respectively.
  Dong Gao , Xin Xu and Xin Ma
  In recent years, chemical simulation systems have been widely used in operator training, chemical parameter optimization and implement of control strategy. However, it is difficult to evaluate the result of operator training, chemical parameter optimization, implement of control strategy objectively and comprehensively. In the study, an ontology-based automatic scoring framework is proposed for chemical simulation system. A scoring ontology is built in the framework for sharing and reuse of knowledge. Basing on the scoring ontology, the framework can supply evaluation of operation, performance of control loops, safety, production and consumption in the simulation system. The case study proved the efficiency, objectiveness, comprehensiveness of the framework.
 
 
 
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