This paper concerns problem of the delay-dependent robust stability and stabilizationfor uncertain neutral systems. Some new delay-dependent stability criteria are derived by takingthe relationship between the terms i...This paper concerns problem of the delay-dependent robust stability and stabilizationfor uncertain neutral systems. Some new delay-dependent stability criteria are derived by takingthe relationship between the terms in the Leibniz-Newton formula into account. Free weightingmatrices are given to express the relationship between the terms in the Leibniz-Newton formula andthe new criteria are based on linear matrix inequalities such that the free weighting matrices can beeasily obtained. Moreover, the stability criteria are also used to design the state-feedback controller.Numerical examples demonstrates that the proposed criteria are e?ective and are an improvementover the previous papers.展开更多
The problem of delay-dependent criteria for the robust stability of neutral systems with time-varying structured uncertainties and identi-cal neutral-delay and discrete-delay is concerned. A criterion for nominal syst...The problem of delay-dependent criteria for the robust stability of neutral systems with time-varying structured uncertainties and identi-cal neutral-delay and discrete-delay is concerned. A criterion for nominal systems is presented by taking the relationship between the terms in the Leibniz-Newton formula into account, which is described by some free-weighting matrices. In addition, this criterion is extended to robust stability of the systems with time-varying structured uncertainties. All of the criteria are based on linear matrix inequality such that it is easy to calculate the upper bound of the time-delay and the free-weighting matrices. Numerical examples illustrate the effectiveness and the improvement over the existing results.展开更多
Multiple organ dysfunction syndrome (MODS) or multiple organ failure ( MOF)is a syndrome which is frequently related to shock and sepsis, and has been described as the mostcommon cause of death in the noncoronary crit...Multiple organ dysfunction syndrome (MODS) or multiple organ failure ( MOF)is a syndrome which is frequently related to shock and sepsis, and has been described as the mostcommon cause of death in the noncoronary critical care unit. The potential pathogenesis of theseptic and systemic inflammatory response syndrome (SIRS) response has been increasingly associatedwith the development and aggravation of MODS or MOF. And studies in this respect have alsodemonstrated that there is a higher risk of mortality associated with some specific organ systemswhen they are dysfunctional, thus leading to the failures of the liver, brain, lung, and kidney. Theliver interacts with many other organ systems, and liver dysfunction may act collectively in theproduction of organ system dysfunction, thus finally ending up with MODS. The management of patientswith MODS/MOF is predominantly supportive and some specific treatments are directed at treating theunderlying disorders. The molecular adsorbent recirculating system (MARS) is an albumin dialysissystem and it was shown to be efficient in removing both hydrosoluble substances and stronglyalbumin-bound substances, so that it improves not only the function of the liver but also that ofother organ systems, and it can be applied to treating the diseased liver as the cause of multipleorgan failure and actively combat deterioration in patients' liver function. This trial aims atevaluating the therapeutic effectiveness of MARS in 39 various pathogenic MODS patients in ourhospital and Beijing Ditan Hospital.展开更多
文摘This paper concerns problem of the delay-dependent robust stability and stabilizationfor uncertain neutral systems. Some new delay-dependent stability criteria are derived by takingthe relationship between the terms in the Leibniz-Newton formula into account. Free weightingmatrices are given to express the relationship between the terms in the Leibniz-Newton formula andthe new criteria are based on linear matrix inequalities such that the free weighting matrices can beeasily obtained. Moreover, the stability criteria are also used to design the state-feedback controller.Numerical examples demonstrates that the proposed criteria are e?ective and are an improvementover the previous papers.
文摘The problem of delay-dependent criteria for the robust stability of neutral systems with time-varying structured uncertainties and identi-cal neutral-delay and discrete-delay is concerned. A criterion for nominal systems is presented by taking the relationship between the terms in the Leibniz-Newton formula into account, which is described by some free-weighting matrices. In addition, this criterion is extended to robust stability of the systems with time-varying structured uncertainties. All of the criteria are based on linear matrix inequality such that it is easy to calculate the upper bound of the time-delay and the free-weighting matrices. Numerical examples illustrate the effectiveness and the improvement over the existing results.
文摘Multiple organ dysfunction syndrome (MODS) or multiple organ failure ( MOF)is a syndrome which is frequently related to shock and sepsis, and has been described as the mostcommon cause of death in the noncoronary critical care unit. The potential pathogenesis of theseptic and systemic inflammatory response syndrome (SIRS) response has been increasingly associatedwith the development and aggravation of MODS or MOF. And studies in this respect have alsodemonstrated that there is a higher risk of mortality associated with some specific organ systemswhen they are dysfunctional, thus leading to the failures of the liver, brain, lung, and kidney. Theliver interacts with many other organ systems, and liver dysfunction may act collectively in theproduction of organ system dysfunction, thus finally ending up with MODS. The management of patientswith MODS/MOF is predominantly supportive and some specific treatments are directed at treating theunderlying disorders. The molecular adsorbent recirculating system (MARS) is an albumin dialysissystem and it was shown to be efficient in removing both hydrosoluble substances and stronglyalbumin-bound substances, so that it improves not only the function of the liver but also that ofother organ systems, and it can be applied to treating the diseased liver as the cause of multipleorgan failure and actively combat deterioration in patients' liver function. This trial aims atevaluating the therapeutic effectiveness of MARS in 39 various pathogenic MODS patients in ourhospital and Beijing Ditan Hospital.
