The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Internet of things (IoT) has been researched in recently years. The Savant as a midware provides the data collecting and pre-processing for the IoT applications. Data grid can aggregate the resources in the IoT. Using data grid to build the Savant enables the Savant manage large scale data and optimizes the efficiency of the resources in IoT. In this paper, the data in the IoT is classified, and a...
This paper reports design and analysis of new low triggering voltage dual-polarity silicon-controlled rectifier (SCR) ESD protection structures and circuits in CMOS. Design optimization technique enables flexible ESD triggering voltage (Vt1), ESD holding voltage (Vh) and ESD protection capability. Measurements show very low and adjustable Vt1, low leakage (Ileak), low noise figure (NF), low ESD-induced...
Applications can be submitted as jobs in grid. Grid jobs usually comprise the scenarios of file stage-in, execution and file stage-out. These scenarios always run in batch mode. It leads to the waiting of the computational resource for data transfer and limits the performance of the grid application, especially when the application is data/communication intensive. Utilizing the file sharing function...
Advanced planning and scheduling (APS) refers to a manufacturing management process by which raw materials and production capacity are optimally allocated to meet demand. How to formulate the complex problems of APS and find satisfactory solutions play an important role in manufacturing systems. In this paper, we propose a scheduling formulation method by combining the graph theory and combinatorial...
A novel MDC framework based on the spatial frequency quantization (SFQ) is proposed in this article. Different from other algorithms, this new three channel framework formed by using the orientation information optimization method based on the SFQ algorithm. According to the three different orientations, i.e., vertical, horizontal and diagonal directions, we use the gross and fine optimization method...
An improved NSGA-II algorithm is applied to the optimization of inverse planning in intensity modulated radiation treatment (IMRT). The test example of irregular field under the condition of water phantom is used to test the inverse planning process of IMRT. The objective functions of PTV (planning target volume) and NT (normal tissue) are based on the average dose distribution. The result of inverse...
Orthogonal frequency division multiplexing (OFDM) systems are sensitive to time and frequency offset errors. In this paper, a method of joint timing and frequency synchronization for OFDM systems has been proposed based on preamble structure defined in IEEE 802.16 standard. The proposed method in coarse frame detection has good robustness and anti-noise ability. The coarse and fine frequency offset...
With the increasing network security accidents, intrusion detection systems (IDS) have been an indispensable part of information system. As a popular light network intrusion detection system, Snort has been a focus in research field. In this paper, dynamic adjustment algorithm is applied to the improvement of rule matching based on the analysis of original mechanism of Snort. Additionally, further...
This paper starts on the flow of moving target detection in dual channel DPCA system. Firstly the output power density spectrum of moving target and noise in DPCA system is analyzed, and the output SNR is obtained. Then the effect of synthetic aperture time of moving target's echo and azimuth antenna pattern on output SNR in DPCA is discussed in detail. Based on this effect, the paper deduces the...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.