Serwis Infona wykorzystuje pliki cookies (ciasteczka). Są to wartości tekstowe, zapamiętywane przez przeglądarkę na urządzeniu użytkownika. Nasz serwis ma dostęp do tych wartości oraz wykorzystuje je do zapamiętania danych dotyczących użytkownika, takich jak np. ustawienia (typu widok ekranu, wybór języka interfejsu), zapamiętanie zalogowania. Korzystanie z serwisu Infona oznacza zgodę na zapis informacji i ich wykorzystanie dla celów korzytania z serwisu. Więcej informacji można znaleźć w Polityce prywatności oraz Regulaminie serwisu. Zamknięcie tego okienka potwierdza zapoznanie się z informacją o plikach cookies, akceptację polityki prywatności i regulaminu oraz sposobu wykorzystywania plików cookies w serwisie. Możesz zmienić ustawienia obsługi cookies w swojej przeglądarce.
The recent advancement of web-scale digital advertising saw a paradigm shift from the conventional focus of digital advertisement distribution towards integrating digital processes and methodologies and forming a seamless workflow of advertisement design, production, distribution, and effectiveness monitoring. In this work, we implemented a computational framework for the predictive analysis of the...
A semi-empirical model is developed to model the multiple-layer structure of hybrid colloidal quantum dots in light emitting diodes. The layer-sequence effect of the quantum dots matches with the measured data and the optimal condition is obtained.
Grid connection of distributed generation would have a certain impact on safe and stable operation of receiving-end network, so systematic analysis on it would be significant. The method for comprehensive assessment on effects caused by grid connection of distributed generation on power grid is presented. The assessment system is divided into steady-state operation assessment, reliability assessment,...
The biological signals collected by the multi-electrode array are contaminated by heavy noise signals. How to quickly classify the original action potential from the measured noisy signals accurately is the basis of researches in the field of neuroscience. In this paper, we analyze the characteristics and shortcomings of Wave-clus sorting algorithm, and present a novel sorting algorithm to solve the...
In order to find a more accurate and stable peak-detection algorithm of FBG, a method of solving the peak position by Gaussian Fitting Algorithm based on Levenberg-Marquardt Algorithm (LM) was studied. In this paper, the principles of Gaussian fitting and Levenberg-Marquardt algorithm are described, and their calculation steps in peak searching algorithm are given. The MOI's SM125 sensor demodulator...
Multistatic sonar has the characteristics of traditional passive and active sonar, including good concealment performance, strong anti-interference ability, far-distance reaction, high positioning accuracy, the advantages of easy-to-optimization design, etc. Multistatic sonar will be the important direction for future development of active sonar. About the scattering characteristics of multistatic...
A lattice-matched AlInGaN digital alloy structure is studied based on the lattice-matched AlInN/GaN ultra-short period superlattices. The numerical findings suggest the potential capabilities of such AlInN/GaN digital alloy in mid- and deep-ultraviolet applications attributed to its tunable bandgap and broadband optical transitions.
First-Principle analysis of the band structures for dilute-anion BN-based semiconductor was performed, and the findings indicated a direct bandgap properties of this alloy in deep ultraviolet regime as compared to the indirect band gap BN alloy.
In order to meet the requirements of TDLAS technology and to ensure the optical wavelength stability and the optical power stability of the laser light source, we design the DFB (distributed feedback) laser drive system using STM32 as the controller. The hardware circuit mainly includes drive current control circuit, constant temperature control circuit and laser optical power monitoring circuit....
This paper is concerned with the admissibility analysis for a kind of stochastic singular delayed systems (SSDSs). Sufficient conditions for the regularity of the impulse-free solution to the SSDSs are obtained. Consequently, by formulating Lyapunov-Krasovskii functional and applying Ito formula, novel sufficient conditions for the stability of SSDSs are derived in terms of strict linear matrix inequalities...
Direct sequence spread spectrum (DSSS) signal as a way of reliable covert communications is widely used for underwater acoustic (UWA) channels. The detection of noncooperative DSSS signals is the first step in UWA communication countermeasure system. In this paper, periodogram method, cepstrum method, and autocorrelation method are compared for detection of non-cooperative DSSS signals in UWA channels...
The problem of adaptive motion/force tracking has been further investigated for a class of mobile manipulators under the holonomic and nonholonomic constraints with the presence of stochastic disturbances. A new adaptive controller is proposed to ensure that the mean square of the tracking error converges to an arbitrarily small neighborhood of zero by tuning design parameters.
Acupuncture is an effective treatment for various diseases in traditional Chinese medicine. However, the detailed mechanisms of how acupuncture information is transmitted in nervous system are still not clear. Thus, the high-performance simulation of the electroacupuncture dynamics is of vital importance in the field of computational neuroscience, which requires a hardware platform with high computational...
In this paper, a novel comprehensive design, including inverter and motor topology, and PWM scheme, is proposed to reduce iron losses for high speed induction motors. In the proposed method, two inverters are connected with a twin-coil motor. Two counteracting PWM schemes are applied in the two inverters, feeding the same fundamental currents into the twin coils, meanwhile switching in opposite phase...
To interactively display scene photos in an in-car environment, we propose a 360° holographic media browsing system, which can recognize a driver's posture to trigger relative visual information to be displayed on a head-up display (HUD) in a car. Recognizing a driver's posture is a challenging issue, due to the unstable lighting conditions and occlusion issues in a limited space in a car. In this...
This paper examines the variation on the contribution rate of university education to economic growth of Chinese manufacturing from the year 2005 to 2014. We divided the period of economic growth of Chinese manufacturing into two stages; 2005–2010 and 2011–2014, and then calculated the contribution rates respectively. The results of both stages are then compared. Findings suggest, the contribution...
In this paper, a multi-channel temperature transmitter is designed, aiming at temperature measurement of rotors, which can also be extended to other parameter measurements of rotating objets. The device receives power with contactless power transfer technology. And the measured temperature data is transferred through wireless data communication. The problem of electromagnetic interference between...
In this paper, A solution is proposed for the multi-robot task assignment in obstacle environment, which combines the A∗ algorithm with the genetic algorithm. Our main work are twofold:(a) Path planning method based on A∗ algorithm to search an optimal path between any robot and any target or any two targets; and (b) task assignment method based on the genetic algorithm for the assignment of robots...
The purpose of this paper was to investigate the damage tolerance of single-stiffener panels. The impact response and the influence of impact damage on compression behavior were studied. Barely visible impact damage (BVID) was introduced to the stiffener flange tip on the smooth side. By applications of visual inspections and C-scan, massive damage was detected. After the impact experiment, compression...
In the handling of the nonlinear systems, Kernel Ridge Regression (KRR) has recently served as an effective method to deal with multicollinearity problem, but it has not been used to solve the problem of fault diagnosis problems. KRR is unable to ensure the safety and the reliability of industrial systems. While previous fault detection method still encounters some problems for key performance indicator...
Podaj zakres dat dla filtrowania wyświetlonych wyników. Możesz podać datę początkową, końcową lub obie daty. Daty możesz wpisać ręcznie lub wybrać za pomocą kalendarza.