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Sliding mode control is a kind of variable structure control method and it has better performance of robustness and anti-disturbance. However, discretizing the continuous sliding mode control and applying it to computer control system will lead to chattering definitely. To solve the question, this paper proposes a new design method for a double tank system according to the design idea of Utkin for...
It is commonly the case that a small number of widely used applications make up a large fraction of the workload of HPC centers. Predicting the performance of important applications running on specific processors enables HPC centers to design best performing system configurations and to insure good performance for the most popular applications on new systems. In the analyses presented in this paper...
Data access has become the preeminent performance bottleneck of computing. In this study, a Layered Performance Matching (LPM) model and its associated algorithm are proposed to match the request and reply speed for each layer of a memory hierarchy to improve memory performance. The rationale of LPM is that the performance of each layer of a memory hierarchy should and can be optimized to closely...
The company stakeholders are all focus on the growth of listed companies, which is an important indicator of the listed companies' conditions. Because the growth of listed companies plays an important role for the stakeholders, to study it is significant. However, the documents about the growth of listed companies of the real estate industry are less; this paper constructed the evaluation model of...
Emerging technologies such as orthogonal frequency division multiplexing (OFDM) and multiple in multiple out (MIMO) has significantly increased the bandwidth of a wireless channel. A potential application of these technologies is to distribute digital video content over wireless in a home environment. However, video streaming is bandwidth demanding, and the number of interference free wireless channels...
This paper presents some mathematic models of compensation capacity for the total relative compensation capacity of symmetrical compensation system. Based on minimum compensation capacity mode and fixed compensation port mode, curves for compensation capacity under different compensation conditions are analyzed. The comparisons for different transformer connections based on the minima and maxima of...
Currently, the concept of multisensor system integration is implemented in land-vehicle navigation (LVN) applications. The most common LVN multisensor configuration incorporates an integrated Inertial Navigation System/Global Positioning System (INS/GPS) system based on the Kalman filter (KF). For LVN, the demand is directed toward low-cost inertial sensors such as microelectromechanical systems (MEMS)...
In the steering process of loader, the distance of left and right cylinder's stroke and arm is different. It results in the non-constant flow of hydraulic oil, which causes the pressure pulsation in the system, the vibration and shock in the course of steering' as well as energy loss in the process. So we should minimize the distance of cylinder's stroke and arm. This thesis builds the mathematical...
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