sign-Gestalt-expectancy theory

But under the dominance of traditional idea of development, the sign of development is controlled by human-centred theory and the theory of taking objects as the basis, thus aggravating the contradiction between man and nature.

然而，在传统发展理念支配下，发展的标志要受制于人类中心论和物本主义论，由此造成人与自然矛盾的加剧。

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Replacing the sign function with fuzzy control logic, the fuzzy terminal variable structure guidance law is proposed. The stability of fuzzy controller is analyzed and proved by Lyapunov stability theory.

采用模糊控制逻辑取代符号切换函数，提出了模糊Terminal滑模变结构导引律，利用Lyapunov稳定性理论对模糊Terminal滑模变结构控制器的稳定性进行了分析与证明。

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The change from psychological theory to theoretical psychology is not only a process of develop-ment but also a sign of gradual perfection of the science of psychology.

由心理学理论到理论心理学的转变，既是心理科学的发展历程，也是学科不断完善的标志。

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Only solving the above mentioned questions can Marxist philosophy, as a theory sign system, keep the original state.

只有做到了这两点，马克思主义哲学才能保持住自己作为一个理论符号系统所具有的那种原创性的构成态势。

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In the stability theory of ordinary differential equations, the V-function of Liapunov fundamental theorem of stability is a fixed sign and its total derivative is contrary sign to V-fuction.

在常微分方程稳定性理论中，Liapunov稳定性基本定理中的V函数是一个定号函数，且它关于时间t的全导数dV/dt的正负号要求与V相反。

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