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Based on the research of the theories and circuits of (2n) GF Galois Field multiplier and X multiplier, this paper presented the reconfigurable architecture for Galois Field multiplier, which use GF(28) as basic field and GF[(28)]4 as extension field. The architecture could flexibly and efficiently support different Galois Field multipliers, such as GF(28), GF[(28)]2, GF[(28)]3 and GF[(28)]4. The...
Some special natural and social events like natural disasters, terrorism attacks, and traffic accidents may have remarkable effect on people's collective behaviors, which means the behaviors of a large number of people viewed as a whole. Analysis of the patterns of collective behaviors in the sense of data mining is an important topic. Solving this problem is crucial and practical in that online detection...
Understanding collective mobility patterns is of great importance for various applications such as emergency detection, location based services and urban planning. As for existing researches, bank notes and mobile phone data are used for this goal. Here, we attempt to use traffic data to discover collective mobility patterns. A large number of sensors are distributed on the whole city roads to capture...
Trajectories of people provide rich information about the collective behaviors, where the term collective behavior means the behavior of a large number of people as a whole. Abnormal people trajectories that are rarely observed may correspond with some unusual events, for instance, natural disasters, terrorism attacks, or traffic accidents. To detect such abnormal people trajectories, namely outliers,...
Symbol segmentation is the key to affect the performance of symbol recognition in natural scenes. As experimentally confirmed, MSER is effective in segmenting text but not applicable to segmentation of graphical objects like traffic signs. We propose a color space graphical object segmentation method. It extracts stable region of interest by applying different color similarity threshold to evaluate...
To investigate the effects on its virulent phage lysis of Escherichia coli resistant mutation. Methods First, isolate the chloramphenicol-sensitive strains and resistant strains from the excrement samples. Then, isolate the virulent phage lysis using the sensitive strains as the host bacteria and extracted the resistant plasmids of the resistant strains to the chloramphenicol resistant transformation...
We propose a local descriptor referred to as triangle chain code as well as a matching algorithm for point set matching and image registration. First, feature points are detected using Harris corner detector. Second, triangle chain code is constructed for every point, which carries the discriminative information regarding its k nearest neighbors (KNN). Third, the KNN neighborhoods of two points are...
Computation of the eigenvalues with the least damping ratios is one of the most efficient approaches to analyze the electromechanical oscillations of power systems. In this paper, an improved generalized Cayley transformation (IGCT) is proposed to search the eigenvalues with an ascending order of the damping ratios efficiently. Since the proposed IGCT preserves the sparsity of the augmented state...
The small-signal security region (SSSR) is an important concept in the security analysis of power systems, especially for the problems of low-frequency oscillation. In this paper, a polynomial approximation method is proposed to construct an analytical expression of the boundaries of the damping-ratio-based small-signal security region (D-SSSR) by using the implicit function approach. Compared with...
This paper presents a hierarchical model of logistics delivery networks by using some principles in graph theory. Based on the proposed hierarchical model, an optimal solution for dynamically configuring the resources of logistics delivery networks is devised through setting the appropriate value for the weight of edges in the model, which aims at minimizing the total traffic cost of a delivery network...
The discrete wavelet transform (DWT) has been widely used in various scientific and engineering fields. However, the enormous computation of DWT caused by multilevel filtering/down-sampling is a bottleneck that limits the application of DWT used in real-time environment where the data size is large. A stream-based parallel computation framework to accelerate the implementation of DWT is presented...
Clickers a wireless-keypad used in class-polling systems that enable students to answer questions during lectures. Such systems provide an interactive teaching environment with real time feedback for students and teachers on the progress of teaching and learning. Clicker use is becoming more widespread amongst faculty as a means of engaging students in US. However, there is few papers report its effectiveness...
With the change of global and the development of economy, low-carbon economy is attracting high attention of society and academe. Through the analysis of the relationship between low-carbon economy and economic development, the author proposes that the essence of low-carbon economy is the transformation of regional socio-economic. On this basis, the article takes Jinhua for example. The first is to...
This paper firstly elaborates the video transmission quality evaluation methods, and gives an overall scheme of video transmission simulation and quality evaluation system, then based on the open-source network simulation software NS-2, realizing the the entire system, finally, simulation experiments are provided to demonstrate the feasibility of the system, the result shows that the video transmission...
British architect Richard Rogers as one of the founders in the "High Technology Group", its bold and striking design has been widely praised. Now, Rogers has been the main energy transfer from a simple architectural design to urban planning in the past, and became a city planning, sustainable development and an advocate of green building technologies. In this paper, Richard Rogers and representative...
Outlier detection on collective behaviors is an interesting and practical problem with the aid of tracking technology and devices such as mobile phones, GPS, and cameras. The aim of outlier detection is to monitor and alarm abnormal collective behaviors of crowd. This study proposes a framework for detecting outliers of collective behaviors. The experiments with toy data and real-world traffic data...
Scalable video coding (SVC) is the extension of the H.264/AVC standard. Because of the variety of video transmission systems, storage systems and computing capabilities, video bit stream need to adapt the various needs of different terminals and network conditions, while SVC is a highly attractive solution to the problems above, it provides network-friendly scalability at a bit stream level with a...
This paper presents the preliminary technique to design an integrated system for ships recognition by Synthetic Aperture Radar (SAR) and Automatic Identification System (AIS). The main objective of this work consists of two main stages: The first is to detect the ships near to the port using the SAR and the second is to identify and match the detected ships using AIS with their respective position,...
This study attempts to describe the scattering analysis of the marine lavers which are placed around the coast of Yellow sea in South Korea. The data acquired by Phase Array L-band SAR (PALSAR) on board of Advanced Land Observing Satellite (ALOS) at different dates and years of an acquisition but of the same month. The laver area, consisting of buoy, bamboo and net. They show the different signal...
With the application of GPS and popularity of intelligent cell phones, the physical location of a person can be easily obtained. Thus, we attempt to analyze the spatial distribution of crowd to facilitate the swift response to the emergency of public security. The states of crowd can be represented as the spatial distribution of moving points. The fractal features are used to describe the degree of...
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