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Interfacial control of various mode-switching for autonomous systems

自主系统各种模式切换的界面控制

基本信息

批准号：
18550126
负责人：
NAKATA Satoshi
金额：
$ 2.72万
依托单位：
Nara University of Education
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2006
资助国家：
日本
起止时间：
2006 至 2007
项目状态：
已结题

项目摘要

As a simple autonomous motor, the self-motion of various ester boats was investigated on water. The time-variation of velocity and the duration of the motion decreased with an increase in the number of carbon atoms in the esters of acetic acid (propyl acetate, butyl acetate, and pentyl acetate). These characteristics of self-motion were qualitatively reproduced by a computer simulation based on the Newtonian motion equation that included the experimental results of surface tension depending on the concentration of ester of acetic acid and the enthalpy of evaporation. We believe that the present system regarding self-motion may be a ueful tool for better understanding surface tension in chemistry in relation to physics and biology.The photosensitive Belousov-Zhabotinsky (BZ) reaction was investigated on a double rectangular field composed of two rectangular routes, which was drawn using computer software and then projected on a filter paper soaked with BZ solution using a liquid-crystal … More projector. When two chemical waves were generated on the rectangular routes as the initial condition, the nature of the collision of the waves could be theoretically classified into four categories depending on the initial phase difference between the two waves and the aspect ratio of the rectangular routes. The experimental results were consistent with the features of the theoretical prediction. These results suggest that the photosensitive BZ reaction maybe useful for studying spatiotemporal development that depends on the geometry of the excitable fields.Using different chemical-sensing systems, we show that by observation of time-dependent nonlinear responses one can improve the sensor selectivity with respect to target samples. We discuss the nonlinear perturbation and the related response in two cases: 1. A periodic change in temperature was applied to a SnO2 semiconductor gas sensor. The resulting sensor response was analyzed by fast Fourier transformation and the higher harmonics are a source of abundant intimation for molecular recognition. 2. The measurements of synchronization in a Wien bridge circuit connected the electrode system or the semiconductor gas sensor coupled with an external sinusoidal operational force. In this case, sensing is based on the shape of return maps.The surface structure of a soy milk skin, as a simple artificial film, was found to be characteristically sensitive to chemical stimuli. The surface structure of the film was imaged by AFM and the shape and size of concavities on the film were analyzed to characterize the chemical response. This characteristic pattern formation of the soy milk skin is discussed in relation to the surface aggregation, electronic charge, and solubility of soy protein molecules around the air/water interface. We believe that the investigation of such an artificial film prepared under nonequilibrium conditions could lead to the creation of a novel artificial film that can adapt to the chemical environment and that spatio-temporal information, such as in pattern formation, may be able to provide multi-dimensional information for use in a chemical-sensing system. Less

作为一种简单的自主电机，对各种酯艇的自主运动进行了研究。随着乙酸酯（乙酸丙酯、乙酸丁酯和乙酸戊酯）中碳原子数的增加，速度的时变和运动的持续时间减小。这些特性的自我运动的定性再现的牛顿运动方程的基础上，其中包括表面张力取决于乙酸酯的浓度和蒸发焓的实验结果的计算机模拟。我们相信，本系统的自运动可能是一个有用的工具，更好地了解表面张力在化学与物理和生物学的关系.光敏Belousov-Zhabotinsky（BZ）反应进行了研究在一个双矩形场，由两个矩形路径组成，这是由计算机软件绘制，然后投影到滤纸上用BZ溶液，用液晶 ...更多信息放映机。当两个化学波产生的矩形路线作为初始条件时，波的碰撞的性质在理论上可以分为四类，这取决于两个波之间的初始相位差和矩形路线的纵横比。实验结果与理论预测相一致。这些结果表明，光敏BZ反应可能是有用的研究时空的发展，取决于几何形状的可激发fields.Using不同的化学传感系统，我们表明，通过观察时间依赖性的非线性响应，可以提高传感器的选择性相对于目标samples。我们讨论了两种情况下的非线性扰动和相关的响应：1。将温度的周期性变化施加到SnO 2半导体气体传感器。通过快速傅立叶变换分析所得到的传感器响应，并且高次谐波是用于分子识别的丰富暗示的来源。2.在一个维恩电桥电路连接的电极系统或半导体气体传感器与外部正弦操作力耦合的同步性的测量。在这种情况下，传感是基于返回maps.The表面结构的豆浆皮肤，作为一个简单的人工薄膜，被发现是典型的敏感化学刺激的形状。利用原子力显微镜对薄膜的表面结构进行了成像，分析了薄膜表面凹陷的形状和大小，以表征化学反应。这种特征图案形成的豆浆皮肤讨论有关的表面聚集，电子电荷，和溶解度的大豆蛋白分子周围的空气/水界面。我们相信，这种人工膜的非平衡条件下制备的调查可能会导致创建一个新的人工膜，可以适应化学环境和时空信息，如图案形成，可能能够提供多维信息用于化学传感系统。少