这份报纸讨论脉搏种痘策略的申请阻止并且控制传染疾病，它被组织年龄的先生描述在易受影响、恢复的个人到按年代先后的年龄在哪个被组织建模的一些，当感染的个人到感染年龄被组织时(持续时间自从感染) 。依赖没有疾病的平衡被决定的...这份报纸讨论脉搏种痘策略的申请阻止并且控制传染疾病，它被组织年龄的先生描述在易受影响、恢复的个人到按年代先后的年龄在哪个被组织建模的一些，当感染的个人到感染年龄被组织时(持续时间自从感染) 。依赖没有疾病的平衡被决定的时间，为哪个明确的表情存在。分析结果证明那在那里存在一种全球性稳定的没有感染的状况如果冲动的时期 T 和比例 p 满足 R 0 (p， T )< 1。最佳的问题被讨论：有在给定的 R 0 的最小的费用的脉搏种痘策略(p， T )< 1。展开更多
In the present work,two types of novel nano additives,titanium sulfonate ligand/black phosphorus(TiLi/BP)and titanium dioxide/black phosphorus(TiCVBP)nanocomposites,were prepared.The tribological behavior of the steel...In the present work,two types of novel nano additives,titanium sulfonate ligand/black phosphorus(TiLi/BP)and titanium dioxide/black phosphorus(TiCVBP)nanocomposites,were prepared.The tribological behavior of the steel/steel friction pairs lubricated by polyalphaolefins type 6(PA06)containing the nanocomposites under boundary lubrication was studied.The worn surfaces were analyzed using modem surface techniques.The experimental results show that the rubbed surfaces became smooth and showed little wear with the addition of the nanocomposites.TiO_(2)/BP nanocomposites can significantly improve the lubricity of BP nanosheets under high contact stress.The synergistic roles of the load-bearing abilities and rolling effect of TiO_(2) nanoparticles,the slip induced by the BP with its layered structure,and the establishment of a tribofilm on the sliding interface are the basis of the tribological mechanisms.展开更多
The target of Hall for Workshop of Meta-synthetic Engineering （HWMSE） is to organically combine the human expert systems, machine systems and knowledge systems so as to realize meta-syntheses. The availability of HW...The target of Hall for Workshop of Meta-synthetic Engineering （HWMSE） is to organically combine the human expert systems, machine systems and knowledge systems so as to realize meta-syntheses. The availability of HWMSE embodies in capabilities of knowledge using and knowledge creation. In HWMSE the knowledge systems could be classed into two types： general knowledge system and object knowledge system. A highly strong and continually accumulated object knowledge system is essential for complex system problem solving. Systematic study of the object system is the foundation for knowledge system construction in HWMSE. It is important to design the knowledge system as a whole for systematic research while at the meanwhile open for accumulation through utilization. Case of object knowledge system construction and utilization in the project Research on the Man-machine Collaborated HWMSE Supporting Macroeconomic Policy Making is discussed.展开更多
基金supported by Natural Science Foundation of Henan Province under Grant No.092300410206Science and Technology Program of Educational Department of Henan Province under Grant No. 2009A110015
文摘这份报纸讨论脉搏种痘策略的申请阻止并且控制传染疾病，它被组织年龄的先生描述在易受影响、恢复的个人到按年代先后的年龄在哪个被组织建模的一些，当感染的个人到感染年龄被组织时(持续时间自从感染) 。依赖没有疾病的平衡被决定的时间，为哪个明确的表情存在。分析结果证明那在那里存在一种全球性稳定的没有感染的状况如果冲动的时期 T 和比例 p 满足 R 0 (p， T )< 1。最佳的问题被讨论：有在给定的 R 0 的最小的费用的脉搏种痘策略(p， T )< 1。
基金support of the National Natural Science Foundation of China(Grant No.51875155)the Fundamental Research Funds for the Central Universities(Grant No.PA2019GDQT0017).
文摘In the present work,two types of novel nano additives,titanium sulfonate ligand/black phosphorus(TiLi/BP)and titanium dioxide/black phosphorus(TiCVBP)nanocomposites,were prepared.The tribological behavior of the steel/steel friction pairs lubricated by polyalphaolefins type 6(PA06)containing the nanocomposites under boundary lubrication was studied.The worn surfaces were analyzed using modem surface techniques.The experimental results show that the rubbed surfaces became smooth and showed little wear with the addition of the nanocomposites.TiO_(2)/BP nanocomposites can significantly improve the lubricity of BP nanosheets under high contact stress.The synergistic roles of the load-bearing abilities and rolling effect of TiO_(2) nanoparticles,the slip induced by the BP with its layered structure,and the establishment of a tribofilm on the sliding interface are the basis of the tribological mechanisms.
基金This work was supported by National Natural Science Foundation of China under Grant No. 79990580. The original version was presented at the Congress of the IFSR2005.
文摘The target of Hall for Workshop of Meta-synthetic Engineering （HWMSE） is to organically combine the human expert systems, machine systems and knowledge systems so as to realize meta-syntheses. The availability of HWMSE embodies in capabilities of knowledge using and knowledge creation. In HWMSE the knowledge systems could be classed into two types： general knowledge system and object knowledge system. A highly strong and continually accumulated object knowledge system is essential for complex system problem solving. Systematic study of the object system is the foundation for knowledge system construction in HWMSE. It is important to design the knowledge system as a whole for systematic research while at the meanwhile open for accumulation through utilization. Case of object knowledge system construction and utilization in the project Research on the Man-machine Collaborated HWMSE Supporting Macroeconomic Policy Making is discussed.
