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Cyber-attack technologies have been evolved continuously. As a result, new attacks and their variants appearevery day. Also, intelligent and malicious attackers use varioustechniques to bypass the current signature and anomalydetection based intrusion detection systems. To detect thenew attacks more effectively, new anomaly detection modelis needed. In this paper, we propose a novel anomaly detectionmethod...
This paper presents the results of a detailed experimental investigation of the abnormal vibration of the electric locomotive. A locomotive suffered from serious vibration problem was chosen for the test and its normal operations kept unchanged during the test. The wheel out-of-roundness (OOR) and vibrations of key components including the axle box, the bogie frame and the car body were measured before...
Application of smart grid produces massive data. Unfortunately, the traditional analysis of power systems can not process such a huge volume of data in an efficient manner. Distributed computing like Map-Reduce framework in cloud environment can provide a promising solution to this problem by processing the data in parallel on a large amount of computing nodes. In this paper, we parallelize power...
Application of smart grid leads to significant increase in scale and data of the power systems, bringing new challenges to the calculation of optimal power flow. However, the existing parallel algorithms, such as MPI-based solutions, suffer from high computational complexity. In this paper, we propose a parallel algorithm of optimal power flow based on Map-Reduce framework. More concretely, the node...
In this paper, a new modeling method of the variable speed variable pitch wind turbine is proposed. More specifically, the linear parameter varying model of wind turbines is optimized by utilizing the variable forgetting factor recursive least squares identification algorithm, which improves the accuracy of the online estimation of the aerodynamic parameters. As the power factor results in the nonlinear...
Voltage-frequency island (VFI)-based design has been widely exploited for optimizing system energy of embedded multi-core chip in recent years. The existing work either constructed a single static VFI partition for all kinds of applications or required per core voltage domain configuration. However, the former solution is difficult to find a single optimal VFI partition for diverse applications while...
On-chip faster-than-at-speed delay testing provides a promising way for small delay defect detection. However, the frequency of on-chip generated test clock would be impacted by process variations. Hence, it requires determining the actual frequency of generated test clock to ensure the effectiveness of faster-than-at-speed delay testing. In this paper, we present a novel test clock generation scheme,...
Nowadays, a growing number of satellites have been sent to the space, the electromagnetic environment is worse than any before. The electromagnetic wave disturbs the receiving module to receive the effective signal, even break the satellites down. So we have to detect where the disturb microwave came from. We can detect the continuous wave with lots of methods, just like the TDOA and the phase interferometer...
This paper realized an algorithm which had expedient modeling and high computer speed for large structures based on FDTD-PIC method. With this algorithm the microwave tubes with integrative structure or antenna could be simulated without worry of memory limited. It's important when the result of experiment was disagree with separate design. Finally with a simulation of a MILO and integrative antenna,...
In this paper, we introduce voltage-frequency island (VFI) -based design paradigm into three dimensional (3-D) network-on-chip (NoC) to optimize system energy. The prominent challenges to VFI-based 3-D NoC designs are the exacerbated thermal issues. Moreover, targeting hard platform with pre-designed structure restrains the optimization space of the prior work. In view of the above limitations, we...
Energy efficiency is a primary design concern for embedded multiprocessor system-on-chips (MPSoCs). Recently, Voltage-Frequency Island (VFI) — based design paradigm was introduced for fine-grained power management, which can seamlessly combine with the task scheduling algorithm to optimize system energy. However, the ever-increasing variabilities cause large uncertainty on delay and power. Such statistical...
Coexistence of two systems in adjacent channels has long been a problem. Due to the scarcity of the frequency spectrum, there must be reliable measures of network plan and spectrum plan. Mobile service and satellite service will coexist at super high frequency band which means that a harmful interference problem may occur. In this paper, the interference between International Mobile Telecommunication-Advanced...
Negative bias temperature instability (NBTI) has become a serious concern for the lifetime reliability of integrated circuits. On-line aging prediction is a promising way to prevent NBTI-induced circuit failure. However, the ever-increasing parameter variations, design complexity and area overhead degrade the effectiveness of such delay detection-based scheme. In this paper, we propose to use the...
With a rapid development of the Chinese economy, there is a huge amount of logistics costs, while China still has not established a pallet associates, and even it has not proposed a practical model of the pallet associates yet. Therefore, the model of Chinese pallet associates is proposed based on the analysis of banking operations as well as the loan of money and the comparison of pallet lease. Meanwhile,...
Housing Provident Fund (HPF) has been now implemented in most cities in China, while there are some variations in the operation of HPF scheme, especially in the debates of HPF operating efficiency. This paper, based on the input-output, chooses the contributing capital, the repayment of loan principal and the contributing persons as input index, the total captial for drawing and loaning, the number...
Typically, today's WSN disaster surveillance system operates poorly in its accuracy and timeliness and can only detect a single type of disasters. This owes largely to the congestion brought about by excessive communication traffic and the processing limitation of the server which dramatically restrict the development of disaster surveillance systems. In order to solve these problems, this paper proposes...
Statistical static timing analysis (SSTA) considering process variation and aging effects is usually used to analyze circuit lifetime reliability at design phase. A key challenge for statistical lifetime reliability analysis is that an accurate statistical timing model is needed to carefully model practical variation distribution as well as delay correlation. In this work, P2CLRAF, a circuit lifetime...
Mine hydrological information management system is developed by using the technology of the geography information system. The MapX technology is used under this kind of situation which integrated the technology of GIS, the technology of COM, the technology of database and the corresponding programming language. It realized the function of the management of the data, the analysis of the data and the...
Given problems existing in the on-time delivery of manufacturing enterprises, this article, with an analysis of factors affecting on-time delivery and internal order processing flow, puts forward a delivery-time-oriented collaborative production model. According to the complexity of order processing and workshop scheduling, and based on the features of being autonomous and collaborative of multi-agent...
This paper presents an aerial image parsing approach. Firstly, scene categories of aerial image is extracted based on global feature-Spatial Envelope in the top-down step; secondly, the candidate proposals of object categories is classified in bottom-up step; finally, the bottom-up proposals are verified by top-down cues, and the parsing graph of the whole aerial image is obtained. The test on the...
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