以不同温度胁迫下(35℃/3d、35℃/5d、38℃/3d和38℃/5d)的水稻田间试验为基础,研究抽穗期高温胁迫对两个水稻品种扬稻6号和南粳43的干物质积累和分配、叶片绿色度值(Soil and plant analyzer development,SPAD)和净光合速率的影响。结...以不同温度胁迫下(35℃/3d、35℃/5d、38℃/3d和38℃/5d)的水稻田间试验为基础,研究抽穗期高温胁迫对两个水稻品种扬稻6号和南粳43的干物质积累和分配、叶片绿色度值(Soil and plant analyzer development,SPAD)和净光合速率的影响。结果表明,与常温对照(CK)相比,高温胁迫下,两个水稻品种干物质积累量、SPAD值和净光合速率显著下降(P<0.05),茎鞘物质输出率和转运率显著增加(P<0.05)。随着胁迫温度的升高和胁迫时间的延长,两个水稻品种各指标的变化幅度逐渐增加。不同水稻品种对高温胁迫的反应不同,扬稻6号受高温影响要小于南粳43。展开更多
Compaction process simulation and residual stress prediction of green PM compact were carried out with elasto-plastic 3D FEA based on the modified Drueker-Prager Cap model in Abaqus. The model parameters of the invest...Compaction process simulation and residual stress prediction of green PM compact were carried out with elasto-plastic 3D FEA based on the modified Drueker-Prager Cap model in Abaqus. The model parameters of the investigated powder Distaloy AE were determined as functions of relative density through typical mechanical property tests of powder. The model was implemented as a user subroutine USDFLD. Single sided compaction of a d20 ram^5 mm disk green compact of Distaloy AE was simulated, and the residual stress of the disk after ejection was predicted with FEA. The FEA results of the compaction process and the residual stress of the disk show good agreement with compaction experiments and X-ray diffraction measurements, which validates the model and its parameters. The results indicate that the compressive residual stresses exist mainly in a thin layer on the side surface, but the residual stresses are very small on the top and bottom surfaces.展开更多
Under green supply chain mode, how to Carry out the distribution of profits between subjects is an important problem. Through the comparison of the green supply chain benefit allocation of non-cooperative game and coo...Under green supply chain mode, how to Carry out the distribution of profits between subjects is an important problem. Through the comparison of the green supply chain benefit allocation of non-cooperative game and cooperative game the payoffmatrix, it is clearly that the necessity of interest distribution cooperative game. Put general manufacturing enterprises of green supply chain as the research object, using Shapley value method for theory analysis and example verification, vertifys that enterprise synergy gains more than their own separate management, and puts forward a feasible path of supply chain collaboration through the construction of the distribution of interests coordination model.展开更多
文摘以不同温度胁迫下(35℃/3d、35℃/5d、38℃/3d和38℃/5d)的水稻田间试验为基础,研究抽穗期高温胁迫对两个水稻品种扬稻6号和南粳43的干物质积累和分配、叶片绿色度值(Soil and plant analyzer development,SPAD)和净光合速率的影响。结果表明,与常温对照(CK)相比,高温胁迫下,两个水稻品种干物质积累量、SPAD值和净光合速率显著下降(P<0.05),茎鞘物质输出率和转运率显著增加(P<0.05)。随着胁迫温度的升高和胁迫时间的延长,两个水稻品种各指标的变化幅度逐渐增加。不同水稻品种对高温胁迫的反应不同,扬稻6号受高温影响要小于南粳43。
基金Project(2009ZX04004-031-04) supported by the National Science and Technology Major Project of the Ministry of Science and Technology of China
文摘Compaction process simulation and residual stress prediction of green PM compact were carried out with elasto-plastic 3D FEA based on the modified Drueker-Prager Cap model in Abaqus. The model parameters of the investigated powder Distaloy AE were determined as functions of relative density through typical mechanical property tests of powder. The model was implemented as a user subroutine USDFLD. Single sided compaction of a d20 ram^5 mm disk green compact of Distaloy AE was simulated, and the residual stress of the disk after ejection was predicted with FEA. The FEA results of the compaction process and the residual stress of the disk show good agreement with compaction experiments and X-ray diffraction measurements, which validates the model and its parameters. The results indicate that the compressive residual stresses exist mainly in a thin layer on the side surface, but the residual stresses are very small on the top and bottom surfaces.
文摘Under green supply chain mode, how to Carry out the distribution of profits between subjects is an important problem. Through the comparison of the green supply chain benefit allocation of non-cooperative game and cooperative game the payoffmatrix, it is clearly that the necessity of interest distribution cooperative game. Put general manufacturing enterprises of green supply chain as the research object, using Shapley value method for theory analysis and example verification, vertifys that enterprise synergy gains more than their own separate management, and puts forward a feasible path of supply chain collaboration through the construction of the distribution of interests coordination model.
