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Radon-Nikodym Theorem of Signed Additive Fuzzy Measure
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作者 纪爱兵 陈学周 《Chinese Quarterly Journal of Mathematics》 CSCD 2001年第4期25-29,共5页
This is subsequent of , by using the theory of additive fuzzy measure and signed additive fuzzy measure , we prove the Radon_Nikodym Theorem and Lebesgue decomposition Theorem of signed additive fuzzy measure.
关键词 signed additive fuzzy measure Radon_Nikodym Theorem Lebesgue decomposition Theorem
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Signed Additive Fuzzy Measure
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作者 纪爱兵 《Chinese Quarterly Journal of Mathematics》 CSCD 2000年第4期43-48,共6页
In this paper, we introduce the concept of signed additive fuzzy measure on a class of fuzzy sets, then, on certain condition, a series of decomposition theorems of signed additive fuzzy measure are proved.
关键词 generated fuzzy σ-algebra signed additive fuzzy measure Hahn decomposition theorem Jordan decomposition theo
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A MAXIMUM PRINCIPLE FOR DISTRIBUTED PARAMETER SYSTEMS WITH MIXED PHASE-CONTROL CONSTRAINTS ANDENDPOINT CONSTRAINTS
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作者 张平健 《Acta Mathematica Scientia》 SCIE CSCD 1997年第2期151-158,共8页
This paper considered the optimal control problem for distributed parameter systems with mixed phase-control constraints and end-point constraints. Pontryagin's maximum principle for optimal control are derived vi... This paper considered the optimal control problem for distributed parameter systems with mixed phase-control constraints and end-point constraints. Pontryagin's maximum principle for optimal control are derived via Duboviskij-Milujin theorem. 展开更多
关键词 maximum principle distributed parameter systems end-point constraints Duboviskij-Milujin theorem additive vector measure
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Design of an Equipotential Shielding 1000 kV Capacitor Voltage Transformer 被引量:4
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作者 Jianchao Zheng Bo Li +1 位作者 Wei Dong Liming Wang 《CSEE Journal of Power and Energy Systems》 SCIE CSCD 2020年第2期419-426,共8页
With the increase of the operating voltage and enlargement of the size of the capacitor voltage transformer(CVT),the additional measurement error caused by stray capacitance coupling and leakage current along the poll... With the increase of the operating voltage and enlargement of the size of the capacitor voltage transformer(CVT),the additional measurement error caused by stray capacitance coupling and leakage current along the polluted surface of the CVT becomes noticeable.The equipotential shielding CVT(EPSCVT)was proposed and designed by the authors to mitigate these effects.An improved conceptual design option of the EPS-CVT is presented in this paper with special references to this study to improve the shielding effect without the increase of shielding capacitance.A proposed method of non-uniform capacitance configuration can improve the shielding effect significantly without an increase of the external shielding capacitance.Based on this achievement,the potential difference and the capacitive current exchange between the internal measuring system and external shielding systems are significantly reduced.In the evaluation of the shielding effect for the influence of stray capacitance,compared with a conventional CVT with equal capacitance,EPS-CVT can reduce the measurement error by two orders of magnitude.In addition,the measurement error caused by the leakage current can also be greatly reduced,especially for the reduction of the phase angle error.Based on the improved design method,a design scheme for an engineering application is proposed which can achieve effective shielding while ensuring as good a technical performance as the existing CVT. 展开更多
关键词 Additional measurement error capacitor voltage transformer capacitive voltage divider equipotential shielding stray capacitance shielding effect
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