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 concre...
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SONIC (Self-Optimizing Narrowband Interference Canceller) is an acronym of the recently proposed ac- tive noise control algorithm with interesting adaptivity and robustness properties. SONIC is a purely feedback contr...
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ISBN:
(纸本)9781618392800
SONIC (Self-Optimizing Narrowband Interference Canceller) is an acronym of the recently proposed ac- tive noise control algorithm with interesting adaptivity and robustness properties. SONIC is a purely feedback controller, capable of rejecting nonstationary sinusoidal disturbances (with time-varying amplitudes and/or frequencies) in the presence of plant (secondary path) uncertainties. We show that even though SONIC can work reliably without access to the reference signal, when frequency of the disturbance is unknown and possibly time-varying the algorithm can take advantage of such an additional source of information. Unlike the classical feedforward solutions, the reference signal is used only to extract information about the instantaneous frequency of the disturbance. The time advantage, available due to the fact that the acoustic delay in the system is larger than the electrical delay, allows one to incorporate in the control loop the smoothed, and hence more accurate, frequency estimates. This increases the attenuation effciency of SONIC and widens its operating range - the modified algorithm can be safely used in the presence of faster frequency changes.
In this paper a real-time image based visual servoing scheme for a nonholonomic mobile robot is presented. The proposed method takes into account the nonholonomic motion constraint of mobile robots. As a distinctive f...
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In this paper a real-time image based visual servoing scheme for a nonholonomic mobile robot is presented. The proposed method takes into account the nonholonomic motion constraint of mobile robots. As a distinctive fact it does not require the estimation and decomposition of the homography or fundamental matrix. A switched image based controller is design, using point features, in order to solve the camera field-of-view (FOV) constraint. The proposed architecture was implemented using a real-time visual servoing system and multiple test were conducted. Experimental results are revealed and commented.
The optimization of resource management in large scale distributed systems (LSDS) with the capability of selforganization is a complex process. LSDS are highly dynamic systems, with permanent changes in their configur...
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Interoperability represents an important issue in developing successful e-Services applications. In such applications data is often produced by services specifics to one organization and is consumed by services belong...
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The prediction of software reliability can determine the current reliability of a product, using statistical techniques based on the failures data, obtained during testing or system usability. Software reliability gro...
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The prediction of software reliability can determine the current reliability of a product, using statistical techniques based on the failures data, obtained during testing or system usability. Software reliability growth models attempt to predict the number of defect using a correlation between exponential function and defect data. The purpose of this paper is to study the evolution of a real-life product over three releases, using the Rayleigh function in order to predict the number of defects. Our paper offers two possibilities for computing the model parameters, and then we should be able to decide which is better and what can be improved. Results from this study will be used to determine which approach is best to be used.
In proteomics 2-dimensional SDS-polyacrylamide gel electrophoresis (2D-PAGE) is the most widely used method for analyzing protein mixtures qualitatively. There are, however, a lot of noise and measurement biases which...
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ISBN:
(纸本)9789604742813
In proteomics 2-dimensional SDS-polyacrylamide gel electrophoresis (2D-PAGE) is the most widely used method for analyzing protein mixtures qualitatively. There are, however, a lot of noise and measurement biases which needs to be accounted for both in the localization of spots as well as in the quantitative measurement of protein expression. Previous techniques for denoising 2D gels are based on thresholding, smoothing and spot recognition. Wavelet transformations have also been applied to denoise 2D gels, however these techniques are typically in the frequency domain and they tend to shift spots slightly. In this paper, we improve the protein spot detection process by wavelet de-noising based on genetic algorithm.
This paper is a step forward by making real time control system design to monitor and control process variables to ensure its smooth operation and desired reliability. Liquid nitrogen level in the condenser is a core ...
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Having solid knowledge of electronics is of major importance for a computerscience (CS) student. The means for achieving a good level of understanding, especially of the practical aspects, is an ongoing issue (in the...
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Having solid knowledge of electronics is of major importance for a computerscience (CS) student. The means for achieving a good level of understanding, especially of the practical aspects, is an ongoing issue (in the short time frame that is generally allocated for it in a CS program). Due to the applied nature of the subject, the authors consider that a pragmatic practice-based approach is an appropriate solution to complete the technical preparation of the students. Following the general lines of this idea, the authors implemented a series of laboratory works that are designed to ensure that students would get hands-on experience with electronic circuits. The paper will present how these will introduce basic key concepts, bridge the gap between theory and practice and lay down a solid foundation for hardware courses that follow in the CS curriculum.
Scientists want to stay connected with everything that is new in scientific world, so they constantly read several online scientific magazines and newspapers. However, not all the subjects are of interest to everyone....
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Scientists want to stay connected with everything that is new in scientific world, so they constantly read several online scientific magazines and newspapers. However, not all the subjects are of interest to everyone. Consequently, a user is forced to do a lot of browsing to find the articles which are important to him. This paper presents a scientific news aggregator, structured as an online magazine. The content is automatically withdrawn from several online publications, available on the Internet. Instead of using a traditional database, all the information about the items posted on the site is stored in a RDF file, which is automatically updated.
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