An adaptive controller of full state feedback for certain cascade nonlinear systems achieving input-to-state stability with respect to unknown bounded disturbance is designed using backstepping and control Lyapunov fu...An adaptive controller of full state feedback for certain cascade nonlinear systems achieving input-to-state stability with respect to unknown bounded disturbance is designed using backstepping and control Lyapunov function (CLF) techniques. We show that unknown bounded disturbance can be estimated by update laws, which requires less information on unknown disturbance, as a part of stabilizing control. The design method achieves the desired property: global robust stability. Our contribution is illustrated with the example of a disturbed pendulum.展开更多
Based on the actual development of enterprises, the data of enterprises are summarized and analyzed from the aspects of financial management and cost control, which provides scientific basis for enterprises to make st...Based on the actual development of enterprises, the data of enterprises are summarized and analyzed from the aspects of financial management and cost control, which provides scientific basis for enterprises to make strategic decisions. Based on the difference and connection between financial management and cost control, this paper analyzes the significance of collaborative management between financial management and cost control from three aspects: improving the efficiency of enterprise management, enhancing the core competitiveness of enterprises and strengthening the supervision of enterprises, and puts forward an effective path for collaborative management between financial management and cost control.展开更多
Sinorhizobium fredii strain HN01 can use proline as the sole carbon and nitrogen source. A mutant strain GXHN100 unable to catabolize proline was screened from 6000 Tn5gusA5 random insertional mutants of S.fredii stra...Sinorhizobium fredii strain HN01 can use proline as the sole carbon and nitrogen source. A mutant strain GXHN100 unable to catabolize proline was screened from 6000 Tn5gusA5 random insertional mutants of S.fredii strain HN01. Sequencing analysis showed that an open read- ing frame, named pmrA (proline metabolic relative), was inserted by the Tn5gusA5. A positive clone, named pGXHN100 which containing 3.3kb foreign DNA fragment of S.fredii strain HN01, was isolated from a partial gene library of S.fredii HN01 by colony in situ hybridization. Sequence analysis showed that pGXHN100 contained the entire pmrA gene. The 3.3kb DNA fragment of pGXHN100 was cloned into a broad-host-range cosmid vector pLAFR3 to form plasmid pGXHN200 which was subsequently introduced into GXHN100 to form a complemented strain GXHN200. Plant test showed that GXHN100 was effective and no obvious changes in nitrogenase activity comparing with parental strain. But GXHN100 nodulated 2 days later on soybean and its nodulation efficiency and competitiveness were decreased. The complemented strain GXHN200 restored the nodulation efficiency and competitiveness of GXHN100 to the wild type.展开更多
With the current liberal policy of opening to the outsid eworld, English Language Teaching (ELT) is increasingly popular in China. Furthermore, with the recent success of China's accession to the World Trade Organ...With the current liberal policy of opening to the outsid eworld, English Language Teaching (ELT) is increasingly popular in China. Furthermore, with the recent success of China's accession to the World Trade Organization and winning for hosting the 2008 Olympic Games in Beijing, there is an obvious consensus among the nation that English is a展开更多
文摘An adaptive controller of full state feedback for certain cascade nonlinear systems achieving input-to-state stability with respect to unknown bounded disturbance is designed using backstepping and control Lyapunov function (CLF) techniques. We show that unknown bounded disturbance can be estimated by update laws, which requires less information on unknown disturbance, as a part of stabilizing control. The design method achieves the desired property: global robust stability. Our contribution is illustrated with the example of a disturbed pendulum.
文摘Based on the actual development of enterprises, the data of enterprises are summarized and analyzed from the aspects of financial management and cost control, which provides scientific basis for enterprises to make strategic decisions. Based on the difference and connection between financial management and cost control, this paper analyzes the significance of collaborative management between financial management and cost control from three aspects: improving the efficiency of enterprise management, enhancing the core competitiveness of enterprises and strengthening the supervision of enterprises, and puts forward an effective path for collaborative management between financial management and cost control.
文摘Sinorhizobium fredii strain HN01 can use proline as the sole carbon and nitrogen source. A mutant strain GXHN100 unable to catabolize proline was screened from 6000 Tn5gusA5 random insertional mutants of S.fredii strain HN01. Sequencing analysis showed that an open read- ing frame, named pmrA (proline metabolic relative), was inserted by the Tn5gusA5. A positive clone, named pGXHN100 which containing 3.3kb foreign DNA fragment of S.fredii strain HN01, was isolated from a partial gene library of S.fredii HN01 by colony in situ hybridization. Sequence analysis showed that pGXHN100 contained the entire pmrA gene. The 3.3kb DNA fragment of pGXHN100 was cloned into a broad-host-range cosmid vector pLAFR3 to form plasmid pGXHN200 which was subsequently introduced into GXHN100 to form a complemented strain GXHN200. Plant test showed that GXHN100 was effective and no obvious changes in nitrogenase activity comparing with parental strain. But GXHN100 nodulated 2 days later on soybean and its nodulation efficiency and competitiveness were decreased. The complemented strain GXHN200 restored the nodulation efficiency and competitiveness of GXHN100 to the wild type.
文摘With the current liberal policy of opening to the outsid eworld, English Language Teaching (ELT) is increasingly popular in China. Furthermore, with the recent success of China's accession to the World Trade Organization and winning for hosting the 2008 Olympic Games in Beijing, there is an obvious consensus among the nation that English is a
