This paper presents a software package on grey-based approaches named a GDAT (grey-based data analysis toolbox). In recent years, a lot of new grey-based approaches are suggested and applied to, and then the users wil...
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ISBN:
(纸本)9781424413553
This paper presents a software package on grey-based approaches named a GDAT (grey-based data analysis toolbox). In recent years, a lot of new grey-based approaches are suggested and applied to, and then the users will demand more evolutionary tools. This package covers grey relational analysis, grey incidence analysis, the grey arithmetic operation, the grey lattice operation, whitening functions, grey structural modeling (GSM), grey classification network (GCN), the grey K-means and grey-rough approximation. These tools are developed by MATLAB with powerful scientific functions, graphic support and various kinds of data-importing support. Components of the current GDAT version and some demonstrations with screen-shots are presented in this paper. The advantages of the proposal include: the GDAT components are free of use, some script codes are on public for use and the latest grey-based models are implemented.
We report on a fabrication technique that realizes 3-dimensionaI microstructures made of conductive pastes and mechanical and electrical properties of the fabricated microstructures. In the technique, ultra precise di...
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We report on a fabrication technique that realizes 3-dimensionaI microstructures made of conductive pastes and mechanical and electrical properties of the fabricated microstructures. In the technique, ultra precise dispensing of low-temperature silver pastes on a heated substrate is continuously repeated and variable microstructures with a diameter of as small as 20 micrometers such as high posts, cantilevers and zigzag shapes can be successfully fabricated. The mechanical and electrical properties of the fabricated microcantilevers have been investigated and it has been found that their probing resistance with a low contact force of 1 mN can be lower than 1 Omega by utilizing appropriate heat curing and fritting processes.
In this paper, we present a new approach to investigate the existence and design of reduced-order proper H_(infinity) controllers that provide the same level of performance as that of full-order controllers. By reveal...
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In this paper, we present a new approach to investigate the existence and design of reduced-order proper H_(infinity) controllers that provide the same level of performance as that of full-order controllers. By revealing some special features of the LMI-based solvability conditions for the H_(infinity) control problem for descriptor systems, we obtain a refined bound on the order of H_(infinity) controllers, which is independent of (invariant under the allowed transformations on) a descriptor realization of the generalized plant. Moreover, we provide two LMI-based algorithms to design the reduced-order controllers and demonstrate the validity of the presented theoretical results via two numerical examples. This paper not only extends in a satisfying way the results on reduced-order H_(infinity) controllers for state-space systems to descriptor systems, but also provides insight into the mechanism by which the order of H_(infinity) controllers for descriptor systems can be reduced through a consideration of the unstable finite zeros or infinite zeros.
In this paper, the effectiveness of the proposed cable-mass damper system (CMD system) for vibration control of flexible and lightly-damped towering structures during strong winds and earthquakes was studied theoretic...
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ISBN:
(纸本)9789810593711
In this paper, the effectiveness of the proposed cable-mass damper system (CMD system) for vibration control of flexible and lightly-damped towering structures during strong winds and earthquakes was studied theoretically and experimentally. The CMD system is composed of a sliding mass which can move smoothly on the top of structure and a pretension cable which connects the sliding mass to the base of structure. The effect of the CMD system on seismic response of towering structures was investigated by table vibration tests. From some experimental results, it was shown that the maximum seismic responses of the structure are reduced to approximately 30% by the system whose mass ratio is 0.8%.
A rotary drum filtering photoreactor using titanium dioxide (TiO 2 ) as photocatalyst could eliminate the problem of catalyst loss by elutriation with the effluent stream. The effects of operating conditions, namely, ...
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A rotary drum filtering photoreactor using titanium dioxide (TiO 2 ) as photocatalyst could eliminate the problem of catalyst loss by elutriation with the effluent stream. The effects of operating conditions, namely, rotating speed and filtration velocity on phenol removal were investigated. The experimental results revealed that the rates of phenol decomposition and total organic carbon (TOC) depletion decreased against the increased rotating speed. The suitable speed of the drum was 5 rpm. As for the filtration velocity, the phenol decomposition and TOC depletion rates achieved their maxima when the filtration velocity was 0.73 cm min -1 . To obtain the intrinsic capacity of TiO 2 cake in degrading phenol, the photolysis of phenol was also studied. The results indicated that the photolysis efficiency of phenol after 360 min was 4.96% while the decomposition efficiency of phenol was 21.47%. They indicated that the presence of TiO 2 cake was a key factor for degrading phenol. In addition, the dark adsorption of phenol on TiO 2 cake after 30 min was insignificant at about 0.95%.
The flux treatment was applied to increase the glass-forming ability of a glassy [(Fe0.5Co0.5)0.75B0.20Si 0.05]96Nb4 alloy. The large bulk glassy specimen with diameter of 7.7 mm was prepared by water quenching the me...
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ISBN:
(纸本)0878494286
The flux treatment was applied to increase the glass-forming ability of a glassy [(Fe0.5Co0.5)0.75B0.20Si 0.05]96Nb4 alloy. The large bulk glassy specimen with diameter of 7.7 mm was prepared by water quenching the melt immersed in the molten flux of B2O3. The diameter of the specimens is approximately 1.5 times as large as the previous result, even though the cooling rate of copper mold casting should be much higher than that of water quenching. The critical cooling rate for a glassy phase is 150 - 170 K/s, which is much slower than 500 K/s without the flux treatment. The flux treatment improves the glass-forming ability by cleaning the molten metal where heterogeneous nucleation is difficult to take place.
The three-dimensional impedance method is deduced from Maxwell's equation for bio-electromagnetic applications, and is parallel implemented by 8 notes parallel computer system. Based on Maxwell's equation, the...
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The three-dimensional impedance method is deduced from Maxwell's equation for bio-electromagnetic applications, and is parallel implemented by 8 notes parallel computer system. Based on Maxwell's equation, the three-dimensional impedance method (IM) is deduced and the association has been found between the minimum incident wave length and the resolution of human body model. Furthermore, a communication scheme to exchange the border data for processors during iteration by message passing interface (MPI) library is designed. And a parallel computer system has been set up. Finally, the solution of the induced current is computed caused by exposure to power line in visible human body model whose resolution is 3 mm and contend 196 × 114 × 626 cells. The results have confirmed the validation and effective of parallel IM.
A problem to make a graph strongly connected is one of the most fundamental problems in graph theory. The known parallel algorithm solves this problem in O(log n) time using O(n 3 ) processors on a CRCW PRAM model. In...
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A problem to make a graph strongly connected is one of the most fundamental problems in graph theory. The known parallel algorithm solves this problem in O(log n) time using O(n 3 ) processors on a CRCW PRAM model. In this paper we present a parallel algorithm to find the minimum edges to make a disconnected directed acyclic graph strongly connected in O(log(m + n)) time using O(m + n) processors on a CREW PRAM model. This algorithm is an efficient parallel algorithm because the number of processors varies according to the density of the given graph.
This paper discusses the advantage and disadvantage of evolutionary robot vision for tracking multiple humans. Evolutionary robot vision combines the technologies of the evolutionary computation and robot vision. The ...
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This paper discusses the advantage and disadvantage of evolutionary robot vision for tracking multiple humans. Evolutionary robot vision combines the technologies of the evolutionary computation and robot vision. The evolutionary computation can search for feasible solution in a dynamic environment. This paper shows its performance. The multi-scale feature extraction, working memory area and evolutionary algorithm (SSGA) were proposed. The proposed method can perform the multiple human heads tracking and also the computational cost can be reduced. Finally, the proposed method is applied to a partner robot, and we discuss the effectiveness of the multiple humans tracking in the natural communication with humans.
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