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浅谈《中图法》电子计算机类目的改进问题
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作者 蔡学山 《图书馆学研究》 1984年第2期66-67,156,共3页
一、计算机自诞生以来,其发展速度是十分惊人的。随着电子技术和半导体技术的不断发展,经历了电子管时代、晶体管时代、集成电路和大集成电路时代,现在正朝着超规模集成电路和人工智能技术发展,它带着最先进科学的桂冠,走在最前列。
关键词 计算机 《中图法》 《中国图书馆分类法》 微分分析器 电子模拟计算机
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Performance analysis of microcantilever array sensing 被引量:2
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作者 ZHOU XiaRong LIU Hong +2 位作者 WU ShangQuan ZHANG QingChuan WU XiaoPing 《Science China(Technological Sciences)》 SCIE EI CAS CSCD 2017年第11期1674-1680,共7页
Array sensing is increasingly important in the development of microcantilever(MC) sensors, and response consistency is the foundation for MC array sensing. In the present work, we investigated the response consistency... Array sensing is increasingly important in the development of microcantilever(MC) sensors, and response consistency is the foundation for MC array sensing. In the present work, we investigated the response consistency of MC array sensing. The responses of two types of commercially available MC arrays were studied under conditions of temperature change, solution replacement and biochemical molecular interaction. For the thermal response, the deflections of both arrays were found to be proportional to temperature, and the responses of the MCs in both arrays were consistent with each other. The thermal response sensitivity for each MC during temperature increase and decrease also showed good consistency. Moreover, the MC array showed good consistency for the response induced by solution replacement. Finally, we also demonstrated that the MC array had good consistency in biochemical detection, exemplified by aflatoxin antibody-anti gen binding. The good response consistency makes this technology reliable and accurate for biochemical sensing. 展开更多
关键词 microcantilever array thermal response environmental disturbance biochemical detection
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Feedback Stabilization for a Scalar Conservation Law with PID Boundary Control 被引量:2
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作者 Jean Michel CORON Simona Oana TAMASOIU 《Chinese Annals of Mathematics,Series B》 SCIE CSCD 2015年第5期763-776,共14页
This paper deals with a scalar conservation law in 1-D space dimension, and in particular, the focus is on the stability analysis for such an equation. The problem of feedback stabilization under proportional-integral... This paper deals with a scalar conservation law in 1-D space dimension, and in particular, the focus is on the stability analysis for such an equation. The problem of feedback stabilization under proportional-integral-derivative(PID for short) boundary control is addressed. In the proportional-integral(PI for short) controller case, by spectral analysis, the authors provide a complete characterization of the set of stabilizing feedback parameters, and determine the corresponding time delay stability interval. Moreover, the stability of the equilibrium is discussed by Lyapunov function techniques, and by this approach the exponential stability when a damping term is added to the classical PI controller scheme is proved. Also, based on Pontryagin results on stability for quasipolynomials, it is shown that the closed-loop system sub ject to PID control is always unstable. 展开更多
关键词 Boundary feedback FID controllers Linear scalar conservation law
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