Transient sensitivity analysis aims to obtain the gradients of objective functions(circuit performance)with respect to design or variation parameters in a simulator,which can be widely used in yield analysis and circu...Transient sensitivity analysis aims to obtain the gradients of objective functions(circuit performance)with respect to design or variation parameters in a simulator,which can be widely used in yield analysis and circuit optimization,among others.However,the traditional method has a computational complexity of O(N^(2))for objective functions containing circuit states at N time points.The computational complexity is too expensive for large N,especially in time-frequency transform.This paper proposes a many-time-point sensitivity method to reduce the computational complexity to O(N)in multiparameter many-time-point cases.The paper demonstrates a derivation process that improves efficiency by weighting the transfer chain and multiplexing the backpropagation process.We also proposed an early-stop method to improve efficiency further under the premise of ensuring accuracy.The algorithm enables sensitivity calculation of performances involving thousands of time points,such as signal-to-noise and distortion ratio and total harmonic distortion,with significant speed improvements.展开更多
Objective： To elucidate the key effects of moxibustion points and quantity of moxibustion used in order to enhance the curative effect of moxibustion therapy. Methods： It analyzed the occurrence rules of acupoint he...Objective： To elucidate the key effects of moxibustion points and quantity of moxibustion used in order to enhance the curative effect of moxibustion therapy. Methods： It analyzed the occurrence rules of acupoint heat-sensitization and its relationship to the moxibustion location and dose, in view of the original definition of acupoints in Nei Jing （Internal Canon） and the acupoint heat-sensitization in clinical practice. Results： （1） The original definition of acupoint is the reflecting area of a disease on surface of the body, which is individualized, motive and sensitive; （2） The location in which heat-sensitization is generated relating to a heat-sensitive acupoint, which therefore depicts the best choice for point selection and also the most accurate area to give moxibustion; （3） The heat-sensitization time can be taken as a clinical index to quantify the moxibustion dose, in order to apply sufficient moxibustion for each individual. Conclusion： The key points for enhancing the curative effect of moxibustion therapy are to identify heat-sensitive points and a scientific moxibustion dose.展开更多
基金supported by the National Key R&D Program(No.2018YFB2202701)from Ministry of Science and Technology,China.
文摘Transient sensitivity analysis aims to obtain the gradients of objective functions(circuit performance)with respect to design or variation parameters in a simulator,which can be widely used in yield analysis and circuit optimization,among others.However,the traditional method has a computational complexity of O(N^(2))for objective functions containing circuit states at N time points.The computational complexity is too expensive for large N,especially in time-frequency transform.This paper proposes a many-time-point sensitivity method to reduce the computational complexity to O(N)in multiparameter many-time-point cases.The paper demonstrates a derivation process that improves efficiency by weighting the transfer chain and multiplexing the backpropagation process.We also proposed an early-stop method to improve efficiency further under the premise of ensuring accuracy.The algorithm enables sensitivity calculation of performances involving thousands of time points,such as signal-to-noise and distortion ratio and total harmonic distortion,with significant speed improvements.
文摘Objective： To elucidate the key effects of moxibustion points and quantity of moxibustion used in order to enhance the curative effect of moxibustion therapy. Methods： It analyzed the occurrence rules of acupoint heat-sensitization and its relationship to the moxibustion location and dose, in view of the original definition of acupoints in Nei Jing （Internal Canon） and the acupoint heat-sensitization in clinical practice. Results： （1） The original definition of acupoint is the reflecting area of a disease on surface of the body, which is individualized, motive and sensitive; （2） The location in which heat-sensitization is generated relating to a heat-sensitive acupoint, which therefore depicts the best choice for point selection and also the most accurate area to give moxibustion; （3） The heat-sensitization time can be taken as a clinical index to quantify the moxibustion dose, in order to apply sufficient moxibustion for each individual. Conclusion： The key points for enhancing the curative effect of moxibustion therapy are to identify heat-sensitive points and a scientific moxibustion dose.
