Additive manufacturing in the form of 3D printing is becoming more common withthe rise of low-cost hobby machines which makes research in the field of medicine more accessible. this article explores and experiments w...
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(纸本)9781479937325
Additive manufacturing in the form of 3D printing is becoming more common withthe rise of low-cost hobby machines which makes research in the field of medicine more accessible. this article explores and experiments withmethods of producing three dimensional replicas of body parts as education material from the medical imaging data of Computed Tomography and Magnetic Resonance Imaging.
there is presented a method for calculation of inertial model for an open-loop oscillating system based on the system step response. Presented method is simple and can be easily used in automatic control practice. Ide...
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there is presented a method for calculation of inertial model for an open-loop oscillating system based on the system step response. Presented method is simple and can be easily used in automatic control practice. Identified model can be applied in control algorithms more advanced than the PID controller, for instance in the predictive control.
In the paper a description of a planar holonomic N-link manipulator relative to a path is presented. the path parametrization method is based on a non-orthogonal projection of the robot on the path and the Serret-Fren...
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In the paper a description of a planar holonomic N-link manipulator relative to a path is presented. the path parametrization method is based on a non-orthogonal projection of the robot on the path and the Serret-Frenet frame moving along a curve. the new control algorithm for N-link manipulators is proposed. the effectiveness of the algorithm for a planar three-link manipulator is examined by computer simulations.
In this paper a robotic representation of chemical compounds was proposed. the representation allows to model chemical molecules similarly to open-chain manipulators with tree-like structures. Transformations between ...
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In this paper a robotic representation of chemical compounds was proposed. the representation allows to model chemical molecules similarly to open-chain manipulators with tree-like structures. Transformations between known chemical representations (formats) and robotic one were established and the representations were compared to. Possible applications of the robotic representation were enumerated and illustrated on a simple example.
this article focuses on the problem of modifying the standard face identification approach for use in small-scale social dynamic environments, by focusing on adaptability rather than robustness. A design of adaptive f...
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this article focuses on the problem of modifying the standard face identification approach for use in small-scale social dynamic environments, by focusing on adaptability rather than robustness. A design of adaptive face identification system is presented, along withthe employed methods of online learning. the problem of ensuing bias-variance dilemma of an adaptive system is described and solved. the system is shown to be able to aptly adapt to new information and changes the environment, the final classification rate on MUG database was near 99%.
the main aim of this paper is to present a new start-aid method to control servo drive in case of very small velocity and distance changes are required. Using resetting of integration in the position controller and fr...
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the main aim of this paper is to present a new start-aid method to control servo drive in case of very small velocity and distance changes are required. Using resetting of integration in the position controller and friction compensation as well as the initial phase correction - start-aid methods are compared and results of simulations are presented. Moreover, models of the drive and friction are delivered and schemas of control systems are presented.
In this paper the monocular visual odometry algorithm augmented with pose graph optimization is presented. the algorithm was tested using five different combinations of feature extractors and descriptors and evaluated...
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In this paper the monocular visual odometry algorithm augmented with pose graph optimization is presented. the algorithm was tested using five different combinations of feature extractors and descriptors and evaluated using two challenging datasets from KITTI database. the main result of this study is that the implementation of pose graph optimization may lead to reduction of position error ranging between 1.53% to 76.05%. the error reduction depends on a feature type and dataset used.
A new method for vehicle classification is presented. An axle parameter estimation gives advanced results for the distances between axles as well as transferred energy of vibrations. Measured road vibrations are analy...
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A new method for vehicle classification is presented. An axle parameter estimation gives advanced results for the distances between axles as well as transferred energy of vibrations. Measured road vibrations are analyzed and the phenomena are studied. Algorithms for vehicle classification based on the findings are described and their performance, advantages and disadvantages are evaluated and discussed. Correct classification of vehicles by wheelbases using accelerometers is about 89 %.
this paper presents the determination of optimal reduction parameters for complex models of the Rational Krylov methods with using Evolutionary Algorithm. the presented algorithms facilitate a precise reduction of lin...
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this paper presents the determination of optimal reduction parameters for complex models of the Rational Krylov methods with using Evolutionary Algorithm. the presented algorithms facilitate a precise reduction of linear time invariant, multi-input and multi-output models. the elaborated algorithms are particularly significant for MIMO models, for which the individual channels differ significantly from each other. the prepared algorithms have been applied for the reduction of the subsystems models of a BP-1150 steam boiler.
In the paper we deal with control of spatially invariant systems described by parabolic partial differential equations with one temporal and one spatial variables. We propose an algorithm for design of deadbeat contro...
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In the paper we deal with control of spatially invariant systems described by parabolic partial differential equations with one temporal and one spatial variables. We propose an algorithm for design of deadbeat controllers. the algorithm is based on polynomial methods. It consists in solving a linear equation with bi-variate polynomials. Numerical example and simulations are included.
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