Everybody has at least one email address nowadays. We keep in touch with family, friends, business partners by email. We receive news, notifications and advertisements by email. We subscribe to different newsletters t...
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Everybody has at least one email address nowadays. We keep in touch with family, friends, business partners by email. We receive news, notifications and advertisements by email. We subscribe to different newsletters that we also receive by email. But don't you hate it when your inbox gets all crowded with messages and you're having trouble finding exactly the one email you need? We all hate those moments. Common email clients allow us to sort emails by date, by sender or even by subject. But that is not always enough. This paper proposes the design and validation of an automatic system for clustering email messages based on semantic meaning. Our system is based on the clustering by compression technique, which has proven its capabilities during previous tests.
A feedback controller is proposed for cancellation of magnetic resonance imaging (MRI) noise. The design of the controller takes into account specific features of the MRI noise signal. Simulation results show that a c...
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ISBN:
(纸本)9781618392800
A feedback controller is proposed for cancellation of magnetic resonance imaging (MRI) noise. The design of the controller takes into account specific features of the MRI noise signal. Simulation results show that a considerable rejection rate of the MRI noise can be obtained.
In this paper we are advocating for the development and adoption of mainstream online real-time barcode reading systems that go beyond common current usage scenarios. The goal is to deliver a reliable and accessible a...
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This paper presents analysis of components tolerance influence on fault diagnosis efficiency of analog electronic circuits. There has been proposed method of finding optimal frequency of input periodic excitation with...
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This paper presents analysis of components tolerance influence on fault diagnosis efficiency of analog electronic circuits. There has been proposed method of finding optimal frequency of input periodic excitation with simultaneous maximization of components tolerances in order to keep assumed level of diagnosis efficiency. There has been also proposed departure from classical “location after detection” schema. Combination of detection and location in a single step can remarkably shorten diagnosis time. The optimization process involves genetic algorithm.
In 2005 an integrated blended e-learning service based on Moodle Learning Management System (LMS), was introduced in Silesian University of Technology, Gliwice, Poland. Review of LMS content shows that some courses co...
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In 2005 an integrated blended e-learning service based on Moodle Learning Management System (LMS), was introduced in Silesian University of Technology, Gliwice, Poland. Review of LMS content shows that some courses contain insufficient number of components, and in many cases the quality of resources is poor. The goal of our research was to identify why some teachers are reluctant to utilize LMS. A survey was carried out in order to examine to what extent teachers accept and make use of various LMS elements. Teachers were also asked to indicate main barriers to LMS-based teaching and present their comments on perspectives of blended learning. Several figures, charts and comments resulting from the survey are presented in the paper. The main obstacles were identified and the suggestions how to eliminate them are presented in the paper.
The enormous number of advantages of minimally invasive surgery leads to the development of computer systems that are helpful tools during laparoscopic operations. In the paper a liver deformation model has been propo...
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The enormous number of advantages of minimally invasive surgery leads to the development of computer systems that are helpful tools during laparoscopic operations. In the paper a liver deformation model has been proposed including the shape deflection of the liver surface while inserting a tool into the organ and extracting it. The model is an answer to the need of better visualization during endoscopic surgery. The desired solution to this issue should be both fast and accurate. The existing solutions to the problem of internal organ deformation were briefly presented. The proposed model is an extension of previously introduced liver deflection models which have been enriched by calculating the shape of liver surface after breaking the organ structure. The main assumptions of the model have been specified. Essential mathematical transformations have been discussed. The correctness of the new model has been verified using US images of a liver while pushing and pulling a laparoscopic tool inside the organ. Pictures included in the paper enable the visual comparison of the real deformation with the one calculated using the new model.
This article presents maximisation of components tolerance together with finding optimal frequency of a periodic excitation in fault diagnosis of analogue electronic circuits. Additionally classical two-stage “detect...
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This article presents maximisation of components tolerance together with finding optimal frequency of a periodic excitation in fault diagnosis of analogue electronic circuits. Additionally classical two-stage “detection → location” diagnosis sequence is merged into single step in order to reduce test time. Presented optimisation problems are solved by means of a genetic algorithm.
Today we live in a World-as-a-Service society, where electronic services are used everywhere, to support from large collaborations to ever more scalable business applications. In this era, specific service capabilitie...
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Research undertaken for the behavior of “human expert” showed that it is specific to its highly nonlinear behavior, with the effects of anticipation, integration, prediction and adapting itself to the concrete condi...
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Research undertaken for the behavior of “human expert” showed that it is specific to its highly nonlinear behavior, with the effects of anticipation, integration, prediction and adapting itself to the concrete conditions of operation. control processes using fuzzy logic controllers from this point of view is more pragmatic and can be adapted to a much wider class of processes. This paper presents fuzzy control system of DC motor speed. Choice is justified by the large number of applications in electric drive systems. Fuzzy logic combined with optimal tracking theory is proposed for the positioning control of a DC motor.
A correct diagnostics together with the early prediction of failure or malfunction of the system are the major issues in modern maintenance. Nowadays, the time-honored diagnostics may be inadequate and lead to omittin...
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A correct diagnostics together with the early prediction of failure or malfunction of the system are the major issues in modern maintenance. Nowadays, the time-honored diagnostics may be inadequate and lead to omitting failures, resulting in higher costs of repairing damaged equipment. That is why the interest in intelligent diagnostics increases due to the possibility of better interpretation of the component status and early failure prediction. One of the ways of determining the device condition is to measure and analyze the temperature of multiple points on the device. Thermographics may show a beginning of significant wear of a component, and enable a repair or replacing before the failure appears. The paper presents the key aspects of the diagnostics with thermal images, including: technology mapping, mapping algorithms, together with a presentation of available software solutions.
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