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.
As a new way to shop, group-buying is popular among younger consumers with its cheap, new forms and convenience. However group buying not only brings benefits, it also brings many problems, such as poor credit, after-sales service problem and low barriers to entry, which plagued the website development. It is time to solve credit issues of bulk purchasing in website. This paper aims to group-buying...
In this paper, a novel coherent combining procedure is devised specifically for UWB Rake receivers to enhance the strength of the received signals and at the same time reduce the additive noise. We take full advantage of the redundant information due to the repeat encoding that a UWB system always uses to enhance the performance of the decision detection. The numerical results show that the BER (bit...
Landmine detection is an available application of Synthetic Aperture Radar (SAR). According to the double-hump structure of a landmine in SAR images, a new approach is proposed for landmine discrimination with sparse representation. First, the total variation (TV) algorithm is used to denoise. Second, a sub-dictionary is obtained within the narrow limits of the Gabor dictionary. Third, the sparse...
In Power User Electric Energy Data Acquisition System, a deadly drift may be generated and accumulated by the differences between devices and environments every day. Therefore an effective external timing system is imperative for clock synchronization. Based on Beidou and GPS satellite, a multimedia timing device and broadcast algorithm are designed. The algorithm mainly including frequently broadcasting...
Based on the certain irrigation requirement, the precise basin irrigation experiment was conducted on spring wheat in the Huangyang Irrigation Area of Gansu Province. A series of factors which influence irrigation benefits were dealt with including irrigation performance, water saving benefit and crop yields, etc. It shows by studied results that precise basin irrigation technique could achieve desirable...
MapReduce is becoming the state-of-the-art computation paradigm for processing large-scale datasets on a large cluster with tens or thousands of nodes. Hadoop, an open-source implementation of MapReduce framework, has gained much popularity due to its high scalability and performance. Two challenging issues for a large-scale Hadoop cluster are how to analyze the scalability and identify the optimal...
Programable logic controllers (PLCs) are complex cyber-physical systems which are widely used in industry. This paper shows the modeling and validation work of a typical PLC control system using the Behavior-Interaction-Priority(BIP) component framework. The gate control system based on PLC is a real industry application. We design general system architecture for this kind of device control system...
This paper introduces four kinds of definition of type-2 fuzzy sets(T2 FS), and provides their difference and connection, then presents a new definition of type-2 fuzzy set to make it to be understood more easily, In finial, we modify the definition and formula of footprint of uncertainty (FOU) of T2 FS and give the relation of FOU and T2 FS.
An efficient power pattern synthesis of contoured beam reflectarrays is presented. Using the presented synthesis technique, an offset dual-polarized contoured beam reflectarray to cover an European region with cross-polar and sidelobe suppression has been designed. Simulations show that the presented technique allows the cross-polar and the sidelobe level to be effectively suppressed in given regions.
in this paper, we use a 3-piecewise linear NCP function and propose a filter trust region method for constrained nonlinear optimization problems. based on the confrence [8], we replace the nonlinear unreasonable NCP function to the linear reasonable NCP function, and correct the filter in violation constrained function with 3-piecewise linear NCP function, At the same time prove that the filter method...
With the rapid development of our country road, road rainfall runoff pollution has been got more and more attention. Combining with the current research at home and abroad, the paper introduces the characteristics of road runoff pollution, the pollution law and its major effect factors. Control the early road runoff pollution is the mainly treatment measure. In the last, this paper put forward some...
In the context of smart grid, intelligent concentrator in the power information gathering system has become the development trend. In this paper, The structure and function of the power information gathering system are analyzed, and then it presents hardware design of the concentrator based on DTT6C01B chip. Original Q / GDW 376.1 and 376.2 protocol standard are expanded to realize the functions of...
This paper has proposed a radio-over-fiber (RoF) link carrying two 10Gb/s 16-QAM mm- wave signal streams. Since the dual-tone 40GHz optical mm-wave are generated by frequency quadrupling via a LiNbO3 modulator and the two QAM signal streams are modulated on each tone by single sideband (SSB) modulation, the frequency requirements of the RF local oscillators and the optical modulators are reduced to...
We present an edge-preserving regularization for fluorescence tomography that improves its resolution and noise robustness through penalizing the total variation (TV) norm of the reconstructed fluorescent distribution. Results are validated by numerical and phantom-based studies.
We have demonstrated generation and transmission of the 40GHz dual-tone optical millimeter (mm)-wave by quadrupling the 10GHz radio frequency local oscillator via a single dual-electrode 10GHz Mach-Zehnder modulator. The transmission performance of two different data modulation formats are discussed based on the transmission function of the dispersive fiber theoretically and then verified by simulation...
Propositional satisfiability problem (SAT) is a fundamental problem both in theory and practice. In the area of software engineering, people employ various techniques, such as model checking, theorem proving, automated testing and so on, to ensure the quality of software. Those techniques are usually based on SAT solvers. The efficiency is an important criterion for a good SAT solver. Besides, the...
Based on the analysis of MFSK and MPSK modulation signals' bandwidths, a feature parameter to distinguish these two kinds of signals was proposed. Simulation results show that this key feature possesses good performance at SNR of 9dB with overall successful recognition-rate higher than 92%. In addition, the proposed algorithm is easy to implement and has a small computation.
To implement the sustainable development in iron and steel industry, many iron and steel enterprises have begun to explore the way of green manufacturing. In this paper, a relative green degree evaluation model for equipments of iron and steel enterprises is established. A five-dimension evaluation index system for equipment is created which is TPCRE (T-Time, P-Performance, C-Cost, R-Resource, E-Environment)...
Innovation capability is a critical factor of the survival and continuous development of industrial clusters. The research of innovation mechanism not only plays a guiding role for the competitive advantages and development of industrial clusters, but also has important meaning for sustainable development of regional and even social economy. Cooperative innovation is a major operation form of cluster...
In the traditional school management, the school's management work encountered many difficulties; this greatly reduces the school's comprehensive work efficiency. Along with the computer and Internet in teaching management application. New campus management mode which is the campus digital management pattern already gradually replaces the traditional campus management mode. Article from the perspective...
Podaj zakres dat dla filtrowania wyświetlonych wyników. Możesz podać datę początkową, końcową lub obie daty. Daty możesz wpisać ręcznie lub wybrać za pomocą kalendarza.