In this paper, a quick identification method based on the short time record of input-output data is introduced for joint state and parameter estimation of nonlinear continuous-time systems. The method can then be used...
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In this paper, a quick identification method based on the short time record of input-output data is introduced for joint state and parameter estimation of nonlinear continuous-time systems. The method can then be used for on-line monitoring the system with unknown parameters. An application way of the method to main-steam temperature control of a thermal power plant are developed in the framework of model reference adaptive control system (MRACS). Simulation studies on a super-heater model have been carried out to demonstrate the effectiveness of the proposed method.
Three-dimensional (3D) shape recovery from a monocular image is the inverse process of optical projection and necessitates the use of additional constraints on 3D features of the objects. We have proposed the method o...
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Three-dimensional (3D) shape recovery from a monocular image is the inverse process of optical projection and necessitates the use of additional constraints on 3D features of the objects. We have proposed the method of shape recovery based on some hypothetical constraints and its realization by energy minimization using a parallel network. In this paper, we will discuss an extension of our proposal with the aim of correcting noise and errors in an input image through the process of shape recovery. It is hardly possible to extract edges and vertexes free from noise and errors from a real image. For the robustness of the system, we must provide our system with the ability to correct such noise and errors. In this extension, we can also modulate the inclination of the process toward model-driven or data-driven.
We discuss recent progress in the understanding of the formation of patterns of snow crystals. In particular, we concentrate on the transition from hexagonal to dendritic patterns that occurs with an increase in the d...
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We discuss recent progress in the understanding of the formation of patterns of snow crystals. In particular, we concentrate on the transition from hexagonal to dendritic patterns that occurs with an increase in the degree of supersaturation. Our numerical results demonstrate that the anisotropy of surface kinetics plays a very important role in the formation of faceted shapes of snow crystals in the form of hexagonal prisms and of facets seen at the tips of dendrites. Furthermore, it is shown that the conditions for the transition from a hexagonal to a dendritic pattern are given by the supersaturation and the dimensionless crystal size relative to the mean free path of a water molecule in air.
To determine the usefulness of equations previously proposed for the apparent maximum reaction rate and apparent Michaelis constant of an immobilized enzyme, starch hydrolysis by glucoamylase immobilized on a porous c...
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To determine the usefulness of equations previously proposed for the apparent maximum reaction rate and apparent Michaelis constant of an immobilized enzyme, starch hydrolysis by glucoamylase immobilized on a porous ceramic support was considered as a model system. Initial reaction rates, v0, were measured for a wide range of initial starch concentrations, S(b0), to make a nonlinear plot Of S(b0)/v0 versus S(b0), and the apparent kinetic parameters were determined from the slopes and intercepts of tangents to the nonlinear plot at given values of S(b0). The equations were found to accurately express the diffusional effect on the kinetic parameters.
The growth process of Fe/FeN multilayers prepared by rf sputtering is studied in situ, combining resistivity measurements and RHEED observations. The structural change from semi-continuous film with random orientation...
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The growth process of Fe/FeN multilayers prepared by rf sputtering is studied in situ, combining resistivity measurements and RHEED observations. The structural change from semi-continuous film with random orientation to continuous film with preferred orientation is detected during growth. Alternate growth of the (110)-oriented Fe layer and the (200)-oriented FeN layer are observed.
Technical illustrations (TI) are always drawn in any assembly manual. This means that a TI is more informative than instruction in assembly tasks. Without TI, we have to read assembly instructions, it is difficult to ...
Technical illustrations (TI) are one of the main methods to show a way to assemble/disassemble a mechanical assembly. The information including not only the shape of a constituent and an order of operations necessary ...
This research aims to understand an assembly instruction manual by fusing the result obtained from understanding technical illustrations (TIU) and that obtained from understanding instructions (IU). In the first versi...
The condition leading to self-posture changing motion (SPCM) of a link system is discussed. It is concluded that there exists a singular behavior in an SPCM, namely, contact force sharply increases when the link postu...
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The condition leading to self-posture changing motion (SPCM) of a link system is discussed. It is concluded that there exists a singular behavior in an SPCM, namely, contact force sharply increases when the link posture comes to a particular point depending on frictional conditions at the point of contact. That contact force keeps constant and small irrespective of the frictional coefficient, while the link posture is not so far away from the straight-line. Thus, an SPCM is highly robust for frictional coefficient when it is executed with the straight-lined link posture. It is shown that by introducing a non-dimensional angle, there exists a similarity law for the behaviors of contact forces for various frictional coefficients, and that a sufficient condition obtained in the authors' earlier works has no space to be relaxed.< >
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