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Against the problems existing in the collective running projects, such as not-reasonable-enough monitoring means, not-scientific-enough assessment tools, and so on, an overseeing and evaluating system of running training was designed and implemented based on the radio frequency identification(RFID), which has the advantages of high precision, comprehensive and real-time positioning. The system provides...
In order to improve the execution efficiency of Vibe algorithm in the process of background model updating, a time and space integrated method is proposed, which can not only take the advantage of previous memoryless updating strategy, but also improve the execution efficiency of the algorithm by combining both with-memory and memoryless methods. To remove the ghost in the initialization phase of...
With the continuous improvement of 4G communication technologies and the popularity of smart mobile devices, the mobile Internet quickly involves into the people's life and work, and more and more users are accustomed to using mobile phones, tablet PCs and other mobile devices for shopping and consumption. But these goods purchased online will result in the problem of idle items at home. Therefore,...
This paper introduces the basic theory based on particle system and expounds the basic principle, definition, model and existing problems of firework particle system. At the same time, in order to achieve more realistic simulation results, this paper mainly introduces the factors that affect the display effect and the exercise effect of the fireworks, such as the effects of constraint conditions,...
Aiming at the problem of the tank truck steering prone to rollover accidents, through the analysis of the outward shift of the mass center caused by the suspension movement and the liquid sloshing in the tank truck steering condition on the roll effect rules of the tank truck body, based on the lateral load transfer rate, a safety speed calculation model of the tank truck rollover prevention was proposed;...
Gait recognition gradually becomes a research focus in the field of identification. Gait is a unique biometric feature and it can be measured unobtrusively in a long distance. In this paper, we study and analyze current techniques of feature extraction. The algorithms of gait recognition are also discussed. After highlighting these issues, there is a discussion about the multi-feature fusion that...
Due to resolving the key escrow problem and public key authentication problem, certificateless public key cryptography has drawn many attentions from numerous scholars and experts in recent years and becomes a hotspot for cryptography research. Most recently, the scholars of He and Du proposed a forward secure certificateless proxy blind signature scheme. Through the security analysis on the forward...
In this paper, a novel local relative phase binary pattern (LRPBP) method is proposed based on LBP and relative phase for extracting texture features. In LRPBP, an image will be firstly processed through Gabor transform. And then the relative phase information of the image is extracted in the complex transform domain of Gabor. Finally, the texture feature of the image is constructed via calculating...
Carrier phase measurement is one of the most important measurements of GNSS receiver, which can be used for precise positioning. In order to achieve a reliable and high precise position, a high quality carrier-phase measurement is needed. Although carrier phase is very precise, there are also many factors in the receiver that will influence the carrier phase measurement performance. The relationship...
In this paper, we proposed a WLAN system interference evaluation model based on received signal power and working channels which reflects the system interference in the current channel configuration. Based on this model, we proposed a simple and effective channel assignment scheme in which a set of channels with minimum system interference values were selected as the APs working channels. Simulation...
A cross-platform mobile client remote services invocation mechanism is proposed in this paper based on remote process call (RPC) aiming to solve the difficulties of communication between different mobile clients, such as the complexity of invoking process, code duplication, and maintenance. The proposed method tackles the problem of repeated coding caused by different languages and APIs used in different...
Narrowband interference (NBI) in power line is the major impediments of application for OFDM-based power line communication. Receiver synchronization error is the biggest problem for narrowband interference on the power line communication system. Therefore, this thesis is based on OFDM power line communication system, studies the narrowband interference influence on power line communication system...
In recent years, sentiment analysis, especially the Chinese sentiment analysis, as an important part of natural language processing, has attracted more and more attention of the relevant personnel. Construction of emotional dictionary is one of the most difficult parts of sentiment analysis. It influences the effect of sentiment analysis directly. This paper combined the two main methods which are...
Using phase change memory (PCM) as main memory for embedded systems, such as Beidou navigation terminals, has many advantages, such as non-volatile, energy saving, anti-crack and so on. However, the problem of write operations needs to be solved to prevent premature failure of the PCM chips. In this paper, the data allocation problem of a hybrid PCM and DRAM main memory in Beidou navigation terminals...
seL4 is formally verified for its functional correctness and its kernel modules provide strong support to achieve interprocess communication mechanism. In recent years, some scholars designed Interprocess Communication Systems with library-based architecture. This design abandons Message-Passing technique that most of microkernels adhere to. The present research still insists on the Message-Passing...
During recent years, Peer-to-Peer (P2P) Content Sharing Networks (CSNs) have intrigued researchers to measure and analyze them for the dominant proportion of P2P traffic volume and wide applications of the sharing platform. However, to the best of our knowledge, most of the measurement tools have not been updated under the current situations of P2P CSNs. In this paper, we develop an enhanced measurement...
The existing emergency rescue systems face the following problems: rescue systems belong to different rescue brigades and are independent of each other, there is no guarantee that the data interface is consistent with the National Safety Supervision Bureau, the bureau and provincial rescue centers can't get the important rescue information timely and accurately; In addition, the rescue brigades cannot...
In cyber physical system (CPS), computation, communication and physical processes are tightly integrated. The inherent complexity of CPS challenges its design and implementation. In order to achieve rapid development of CPSs, the well-known SOA technology gradually receives attentions of researchers in the field of CPS. Modeling CPS service is fundamental to further application of SOA technology....
XML documents have both structural and semantic information, bringing data integration and deep utilization based on XML more precise description and versatile expression. But in the meanwhile traditional NLP and DM methods can't be applied directly. Feature dimension reduction and general similarity of XML based on tensor analysis are discussed. Considering the correlation between XML's structure...
With the development of the study on the electrospray ionization mass spectrometry, many new features have been added to modern protein mass spectra. To fit these new features, ProteinGoggle delivers the confident identification of proteoforms with new algorithm for in situ interpretation and database search of protein tandem mass spectra. To build the customized theoretical database of both proteins...
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