Now we extend one method into a sequence of binomial data, propose a stepwise confidence interval method for toxic-ity study, and also in our paper, two methods of constructing intervals for the risk difference are pr...Now we extend one method into a sequence of binomial data, propose a stepwise confidence interval method for toxic-ity study, and also in our paper, two methods of constructing intervals for the risk difference are proposed. The first one is based on the well-known conditional confidence intervals for odds ratio, and the other one comes from Santner“small-sample confidence intervals for the difference of two success probabilities”, and it produces exact intervals, through employing our method.展开更多
The application of normal distribution for quality characteristics has its limits on the condition that specification interval is asymmetric. In this paper, the compound normal distribution N(L,σ12,σ22) was proposed...The application of normal distribution for quality characteristics has its limits on the condition that specification interval is asymmetric. In this paper, the compound normal distribution N(L,σ12,σ22) was proposed and simulated, the property of the parameters Lσ1 and σ2 was studied. The distribution was further applied toangle quality process control.展开更多
The interval constraint can be applied in tolerance design if tolerances are considered as interval, and backward propagation can be used to realize tolerance synthesis in which tolerances are allocated to meet functi...The interval constraint can be applied in tolerance design if tolerances are considered as interval, and backward propagation can be used to realize tolerance synthesis in which tolerances are allocated to meet functional requirements. The intervals are tightened uniformly or according to interval width or nominal value of dimension in previous methods. A tolerance backward propagation method based on manufacturing difficulties is presented in this paper. In the new arithmetic, the interval is tightened according to the manufacturing difficulty of the interval. So it will be easy to manufacture and has lower manufacturing cost. Finally, the proposed arithmetic is tested on a practical example.展开更多
Heart transplantation(HT),the treatment choice of advanced heart failure pa-tients,is proven effective in increasing the survival and functional status of the recipients.However,compared to normal controls,functional ...Heart transplantation(HT),the treatment choice of advanced heart failure pa-tients,is proven effective in increasing the survival and functional status of the recipients.However,compared to normal controls,functional status is lower in HT recipients.Exercise given in cardiac rehabilitation has been shown to improve exercise capacity as measured with peak oxygen uptake(VO2 peak)and muscle strength after completion of the program and cessation of exercise results in loss of exercise benefits.Several factors related to cardiac denervation and the use of immunosuppressive agents in HT recipients result in functional impairments including cardiovascular,pulmonary,exercise capacity,psychological,and qua-lity of life(QoL)problems.High-intensity interval training(HIIT)is the most common type of exercise used in HT recipients and given as a hospital-based program.Improvement of functional impairments was found to have occurred due to primarily musculoskeletal adaptations through improvement of muscle structure and aerobic capacity and cardiovascular adaptations.In general,exercise given after transplantation improved VO2 peak significantly and improvement was better in the HIIT group compared to moderate intensity continuous training or no-exercise groups.Improvement of QoL was ascribed to improve-ment of exercise capacity,symptoms,pulmonary function,physical capacity improve-ment,anxiety,and depression.展开更多
Purpose-The purpose of this paper is to look at the problem of fault tolerant control(FTC)for discrete time nonlinear system described by Interval Type-2 Takagi–Sugeno(IT2 TS)fuzzy model subjected to stochastic noise...Purpose-The purpose of this paper is to look at the problem of fault tolerant control(FTC)for discrete time nonlinear system described by Interval Type-2 Takagi–Sugeno(IT2 TS)fuzzy model subjected to stochastic noise and actuator faults.Design/methodology/approach–An IT2 fuzzy augmented state observer is first developed to estimate simultaneously the system states and the actuator faults since this estimation is required for the design of the FTC control law.Furthermore,based on the information of the states and the faults estimate,an IT2 fuzzy state feedback controller is conceived to compensate for the faults effect and to ensure a good tracking performance between the healthy system and the faulty one.Sufficient conditions for the existence of the IT2 fuzzy controller and the IT2 fuzzy observer are given in terms of linear matrix inequalities which can be solved using a two-step computing procedure.Findings–The paper opted for simulation results which are applied to the three-tank system.These results are presented to illustrate the effectiveness of the proposed FTC strategy.Originality/value–In this paper,the problem of active FTC design for noisy and faulty nonlinear system represented by IT2 TS fuzzy model is treated.The developed IT2 fuzzy fault tolerant controller is designed such that it can guarantee the stability of the closed-loop system.Moreover,the proposed controller allows to accommodate for faults,presents a satisfactory state tracking performance and outperforms the traditional type-1 fuzzy fault tolerant controller.展开更多
文摘Now we extend one method into a sequence of binomial data, propose a stepwise confidence interval method for toxic-ity study, and also in our paper, two methods of constructing intervals for the risk difference are proposed. The first one is based on the well-known conditional confidence intervals for odds ratio, and the other one comes from Santner“small-sample confidence intervals for the difference of two success probabilities”, and it produces exact intervals, through employing our method.
基金National Natural Science Foundation of China(7007203370372064).
文摘The application of normal distribution for quality characteristics has its limits on the condition that specification interval is asymmetric. In this paper, the compound normal distribution N(L,σ12,σ22) was proposed and simulated, the property of the parameters Lσ1 and σ2 was studied. The distribution was further applied toangle quality process control.
文摘The interval constraint can be applied in tolerance design if tolerances are considered as interval, and backward propagation can be used to realize tolerance synthesis in which tolerances are allocated to meet functional requirements. The intervals are tightened uniformly or according to interval width or nominal value of dimension in previous methods. A tolerance backward propagation method based on manufacturing difficulties is presented in this paper. In the new arithmetic, the interval is tightened according to the manufacturing difficulty of the interval. So it will be easy to manufacture and has lower manufacturing cost. Finally, the proposed arithmetic is tested on a practical example.
文摘Heart transplantation(HT),the treatment choice of advanced heart failure pa-tients,is proven effective in increasing the survival and functional status of the recipients.However,compared to normal controls,functional status is lower in HT recipients.Exercise given in cardiac rehabilitation has been shown to improve exercise capacity as measured with peak oxygen uptake(VO2 peak)and muscle strength after completion of the program and cessation of exercise results in loss of exercise benefits.Several factors related to cardiac denervation and the use of immunosuppressive agents in HT recipients result in functional impairments including cardiovascular,pulmonary,exercise capacity,psychological,and qua-lity of life(QoL)problems.High-intensity interval training(HIIT)is the most common type of exercise used in HT recipients and given as a hospital-based program.Improvement of functional impairments was found to have occurred due to primarily musculoskeletal adaptations through improvement of muscle structure and aerobic capacity and cardiovascular adaptations.In general,exercise given after transplantation improved VO2 peak significantly and improvement was better in the HIIT group compared to moderate intensity continuous training or no-exercise groups.Improvement of QoL was ascribed to improve-ment of exercise capacity,symptoms,pulmonary function,physical capacity improve-ment,anxiety,and depression.
文摘Purpose-The purpose of this paper is to look at the problem of fault tolerant control(FTC)for discrete time nonlinear system described by Interval Type-2 Takagi–Sugeno(IT2 TS)fuzzy model subjected to stochastic noise and actuator faults.Design/methodology/approach–An IT2 fuzzy augmented state observer is first developed to estimate simultaneously the system states and the actuator faults since this estimation is required for the design of the FTC control law.Furthermore,based on the information of the states and the faults estimate,an IT2 fuzzy state feedback controller is conceived to compensate for the faults effect and to ensure a good tracking performance between the healthy system and the faulty one.Sufficient conditions for the existence of the IT2 fuzzy controller and the IT2 fuzzy observer are given in terms of linear matrix inequalities which can be solved using a two-step computing procedure.Findings–The paper opted for simulation results which are applied to the three-tank system.These results are presented to illustrate the effectiveness of the proposed FTC strategy.Originality/value–In this paper,the problem of active FTC design for noisy and faulty nonlinear system represented by IT2 TS fuzzy model is treated.The developed IT2 fuzzy fault tolerant controller is designed such that it can guarantee the stability of the closed-loop system.Moreover,the proposed controller allows to accommodate for faults,presents a satisfactory state tracking performance and outperforms the traditional type-1 fuzzy fault tolerant controller.
