In this paper an algorithm of computing a locally optimal nonholonomic path is presented. The algorithm exploits local dynamic programming method applied iteratively. Tests of the algorithm were carried out on the mod...
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In the paper a solution to adaptive trajectory tracking problem for doubly nonholonomic mobile manipulators has been presented. The proposed control algorithms take into considerations the kinematics as well as the dy...
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The Advanced Encryption Standard algorithm itself does not guarantee error free operation or detection of arising errors. Contemporary research has shown that even single bit errors strongly affect the output of the a...
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The Advanced Encryption Standard algorithm itself does not guarantee error free operation or detection of arising errors. Contemporary research has shown that even single bit errors strongly affect the output of the algorithm. Moreover an attacker may maliciously induct errors during the run of the AES in order to perform cryptanalysis and recover the encryption secret key. In this paper we propose an extension of error detection code for AES, known from an open literature. The implementation of our idea leads to the improvement of error detection ability and reduces of the probability of successful fault analysis below 2 -7 .
The paper contributes to an emerging field in social robotics, namely application of robots in autism therapy. It has been proposed a dedicated spherical robot, Sharic, which will assist a therapist in treatment of au...
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The aim of this paper is to introduce a conception of the easy, robust and reliable computer aided composition teaching material into one learning tree, which constitute the basis for an e-education system. . It is al...
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The aim of this paper is to introduce a conception of the easy, robust and reliable computer aided composition teaching material into one learning tree, which constitute the basis for an e-education system. . It is also presented a simplified schema of lessons positioning in the Z-plane of the learning tree. Author also focuses on the diversification of difficulty levels corresponding to the particular e-lesson version to be suitable for a certain type of student
The class of self-dual logic circuits is analyzed. It is shown, that self-duality is the feature of a numerous arithmetic circuits, like elementary 1-bit adder, standard binary and 2's complement adders and a clas...
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The class of self-dual logic circuits is analyzed. It is shown, that self-duality is the feature of a numerous arithmetic circuits, like elementary 1-bit adder, standard binary and 2's complement adders and a class of modulo adders
The economic analysis of dispatcher driven transport system which takes into account functional and reliability parameters is quite serious problem in real world. Our previous works showed that the calculation of cost...
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The economic analysis of dispatcher driven transport system which takes into account functional and reliability parameters is quite serious problem in real world. Our previous works showed that the calculation of cost function requires to set up a large number of economic parameters. It is rather hard to state the exact value of many of them. Especially hard is now to predict a price of gasoline. Therefore, we propose to use a fuzzy representation of gasoline costs as well as fuzzy representation of some reliability parameters. The Monte Carlo approach is used for system functional simulation. No restriction on the system structure and on a kind of distribution is the main advantage of the method. The paper presents some exemplar system modeling. The presented economic analysis of dispatcher driven transport system is practically essential for defining an organization of vehicle maintenance and transport system logistics
A method of reliability and economic analysis related to discrete transport systems with dispatcher is presented. The proposed analysis is based on modeling and simulating of the system behavior. The position of dispa...
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A method of reliability and economic analysis related to discrete transport systems with dispatcher is presented. The proposed analysis is based on modeling and simulating of the system behavior. The position of dispatcher is to mimic a function of real transport logistic. The Monte Carlo simulation is used for proper reliability and economic parameters calculation. No restriction on the system structure and on a kind of distribution is the main advantage of the method. The paper presents some exemplar system modeling. The author stress the problem of influence of the reliability parameters for final system economic measures (i.e. costs). The presented problem is practically essential for defining an organization of vehicle maintenance and transport system logistics
The fault-tolerant topological design for a computer network leads one to characterize the way in which the nodes are linked to each other with the known connectivity parameter and to the capacity of links, which repr...
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The fault-tolerant topological design for a computer network leads one to characterize the way in which the nodes are linked to each other with the known connectivity parameter and to the capacity of links, which represent the means of transmission parameters between the vertices. The design problem is to find a suitable fault tolerant network topology at a minimum communication cost under the constraint of an average packet time delay. An approach based on evolutionary algorithm (EA) is developed for the network topological design problem. The special construction of a chromosome according to fault tolerant network configuration was designed and the modification of fitness function is proposed. Simulations are studied to support the effectiveness of the proposed algorithm
In this paper an algorithm of computing a locally optimal nonholonomic path is presented. The algorithm exploits local dynamic programming method applied iteratively. Tests of the algorithm were carried out on the mod...
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In this paper an algorithm of computing a locally optimal nonholonomic path is presented. The algorithm exploits local dynamic programming method applied iteratively. Tests of the algorithm were carried out on the model of the unicycle robot.
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