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Cloud computing is the most popular computing model in the current information industry, and cloud is a complex system with a large number of servers and users, it has to schedule tasks frequently among the servers and manage its computing resource flexibly to meet the demand of the users. With the growing service demand and higher QoS requirement of the users, the performance of the system is facing...
The next generation of the Internet is a multi-service network with data, voice, video and multimedia, which puts forward the higher requirements of real-time performance and effectiveness for the end-to-end communication network. However, higher requirements of time delay will lead to higher energy consumption. Since different communication services have different requirements of time delay, an end-to-end...
The press-in pile has become one the most frequently used piles in weak soil. However, there are some geoenvironmental problems in the course of installation. The press-in pile belongs to the soil-squeezing pile, and the soil surrounding the pile will be pressed during the process of construction, which leads to the excessive pore water pressure, and that may destroy the surrounding buildings, pipe...
A recently developed approach to precision medicine is the use of Markov Decision Processes (MDPs) on Gene Regulatory Networks (GRNs). Due to very limited information on the system dynamics of GRNs, the MDP must repeatedly conduct exhaustive search for a non-stationary policy, and thus entails exponential computational complexity. This has hindered its practical applications to date. With the goal...
To improve Network-on-Chip (NoC) parallelism, this paper proposes a new collision array based workload assignment to increase data request cancellation. Through a task flow partitioning algorithm, we minimize sequential data access and then dynamically schedule tasks while minimizing router execution time. Experimental results show that this method can provide an average of 87.7% system throughput...
Simply upgrading to multi-core systems has been proven to provide only minor speedup compared with single core systems. However, because multi-core systems use shared memory, the bottleneck for speedup lies in the memory I/O. The only way to fully utilize multiple cores is to increase parallelism and concurrency. This paper proposes a new collision array based workload assignment to increase data...
We address the problem of exclusion of verbs in sentences which are not predicates in Machine Translation and V+N compound nouns are the most apparent phenomena. We propose several identification rules based on HNC theory to lower the error rate of predicate-identification and verb-translation. Result is got by testing in existing MT system, which has a precision of 83.22% and a recall of 65.56%....
This paper presents the design and implementation of meteorological data display system based on SQL Server meteorological data warehouse. The purpose is to apply data warehouse to the field of meteorological research. The system uses SQL Server Reporting Services platform to generate meteorological data report and shows the reports based on two-dimensional maps. Moreover, the system is published...
The paper designs and implements the meteorological data warehouse as well as the meteorological data report based on the Microsoft SQL Server. The purpose is to apply data warehouse technology in the meteorological research area. Using On-Line Analysis Processing(OLAP) and the multidimensional report, we get the beneficial data. The system generates meteorological data report, which can publish the...
A new Photonic crystal fiber structure with five air-holes in the first ring is proposed. This new PCF possess the advantages of fabrication and welding. The effective index, modal field profile and the dispersion (D) characteristics are analyzed by employing the finite element method. It is found that, by adjusting the fabrication parameters, the quinquangular photonic crystal fiber can achieve similar...
Brillouin fiber optic gyroscope has the advantages of simple structure, solid stability, high sensitivity and resolution, high dynamic range and so on, it can be used in plenty of inertial sensor systems. In this paper, frequency stabilization problem of Brillouin fiber-optic gyroscope is researched and analyzed, then a new frequency stabilization technique is proposed, experimental results showed...
The optical structure and working principle of brillouin fiber optic gyroscope was analyzed, the optical components Jones matrix model of brillouin fiber optic gyroscope was established by using Jones matrix optics theory, and the optical transfer matrix model was established based on optical transmission mechanism, the output light intensity expressions of brillouin fiber optic gyroscope and the...
In order to improve the reliability of turbine rotor design, response surface method is introduced into probability finite element, and geometrical parameters, material parameters and load parameters of rotor are considered as input random variables, through calculating and then obtaining the statistical characteristics and cumulative distribution function of stochastic response of the rotor. Then,...
When the system mathematical model and the noise statistical properties are not very accurate, the Kalman filtering will reduce the precision of filtering, and even lead to filter divergence.In view of this, adaptive filtering which based on the principle of Kalman filtering is proposed. By comparison experiment, it can be obtained that the adaptive filtering can achieve better filtering effect than...
Metamaterials, with effective negative permittivity and/or negative permeability, have paid much attention in recent years. We present the results on slow light and omnidirectional resonances in the metamaterial-based structures. We have found that the group velocity vanishes in the planar and cylindrical waveguides consisting of the left-handed metamaterial core and the single-negative-permittivity...
Random loss in wireless ad hoc networks derives from two main causes: lossy wireless links and node mobility. Packet loss and link breakage can dramatically degrade the performance of any network protocol thus making routing in mobile ad hoc networks extremely challenging. In this study we focus on applications that exhibit mobility and random packet loss. Possible scenarios include search and rescue,...
This paper presents AODV-DFR, a hybrid routing scheme that gracefully integrates the characteristics of on-demand and proactive routings. AODV-DFR shows great scalability for mobility and traffic load. We have demonstrated that AODV-DFR outperforms on-demand routing protocols (such as AODV), georoutings (such as GPSR) and adaptive hybrid routing protocols (such as ADV) in high mobility and traffic...
The surface EMG signals of the antagonist muscles of normal human elbow joint were pecked-up during repeated contractions both in extension and flexion modes. The normalized median frequency (NMF) of the antagonist EMG signal was higher than that of agonist in each repeating contraction. The slopes of two regression lines of agonist/antagonist NMF increased, and there intercepts decreased as repeated...
The effects of control properties of the motor unit, firing rate and recruitment, of the cat's m. gastrocnemius on the EMG spectral frequencies were experimentally determined. The median frequency (MF) of single-M wave increased following the increment of recruitment level. The variations of firing rate influenced the MF insignificantly.
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