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The mobile broadband revolution with its rapidly increasing traffic volumes has resulted in a number of challenges, including ubiquitous network coverage, high bandwidth, and reliable services for reasonable price, etc‥ To address these challenges, the Evolved Packet System is proposed as the evolution of the packet core network. While resource management and load balancing issue in Evolved Packet...
Laboratory is an important base for teaching and research in higher education institutes. As a core task of laboratory construction, to build up a well-qualified team of technicians has become an urgent task for higher education institutes. The paper described that horticulture experimental teaching demonstration center would select carefully a capable laboratory director and establish a well-qualified...
the virtual value chain analysis used in corporate labor cost control in this paper to analyze the controlling factors of labor Cost in the virtual value chain. From the point of view of the Flexible control analysis the labor costs in the virtual value chain, using the flexible control method rebuild the value chain, proposing the Labor cost control methods ,from a strategic point of control reduce...
In this paper, a multivariate fault prognosis approach based on statistical process monitoring (SPM) methods and time series prediction for turbine machine was proposed. A principal component analysis (PCA) model using sample data under normal state was built. Firstly, fault is detected by squared prediction error (SPE) index, then predicted by AR model. With development of fault process, the SPE...
This paper focuses on the content, implementation process of investigation teaching methods to make an outline, descried the application process of investigation teaching method with living examples in classroom instruction of Landscape Architecture in detail. Practice has proved that application of investigation method in the teaching process not only can enhance the teaching effectiveness of teachers,...
E-paper screen mobile handheld devices primarily process multimedia data, such as image, audio and text, are expected to become important platforms for pervasive computing. Nowadays, mobile web browser is widely used in mobile handheld devices, such as cell phone, PDAs(personal digital assistants). Accessing web content defined in Wireless Application Protocol(WAP) is fast and comfortable with mobile...
We propose a method for vector field learning with outliers, called vector field consensus (VFC). It could distinguish inliers from outliers and learn a vector field fitting for the inliers simultaneously. A prior is taken to force the smoothness of the field, which is based on the Tiknonov regularization in vector-valued reproducing kernel Hilbert space. Under a Bayesian framework, we associate each...
There are deficiencies in conventional education. With the development of technology, the method of education and study should be innovated. E-learning is a kind of new teaching method. In this manuscript, the reasons and methods of the combination of conventional education and e-learning in college education were proposed. In addition, the main components of e-learning system and related information...
Doping is one of the most important issues in semiconductor physics. The charge carrier generated by doping can profoundly change the properties of semiconductors and their performance in optoelectronic device applications, such as solar cells. Using detailed balance theory and first-principles calculated defect formation energies and transition energy levels, we derive general formulae to calculate...
The deformation of the workpiece-fixture system has essential influence on the locating accuracy of the workpiece. To minimize the overall deformation of the workpiece-fixture system is an important issue in fixture design. This paper focuses on the fixture layout design with compliant model. A topology optimization approach is presented in order to reduce the complexity introduced by the high computational...
A dose of 8 × 1016 ions/cm2 He+ ions has been implanted into a z-cut KTP crystal with energy of 150 KeV at room temperature. The refractive index profile has been measured by the Model 2010 Prism Coupler at room temperature and after annealed at temperature of 200°C, 300°C and 400°C. The surface effective refractive index also has been obtained. The results show that the surface effective refractive...
The current method of gravity gradient map modelling is based on digital elevation model, the effects of isostasy in gravity gradient map modelling are researched and analyzed in this paper, and a novel method of modelling gravity gradient map was presented. The current isostasy theory shows that the density of crust changes with elevation, so assigning a constant value to landform's density is not...
Spectrum management in cognitive radio is one of the most challenging issues and has attracted much research attentions in recent years. However most of the existing works consider either online demands or scheduled demands, which may not fully capture the flexible nature of the demands in certain circumstances, such as the communication demands for a synchronized sensing data transmission in wireless...
The benefit of autonomous underwater gliders is their long range and high endurance for certain types of missions. Also by nature the gliders have relatively low operating speeds and depend strongly on the ocean environment of their operational area. To deal with this complex and changeable ocean environment, make the glider motion robust to parameter variations and disturbances, and track the predetermined...
As one of the key characteristics of virtualization, live virtual machine (VM) migration provides great benefits for load balancing, power management, fault tolerance and other system maintenance issues in modern clusters and data centers. Although Pre-Copy is a widespread used migration algorithm, it does transfer a lot of duplicated memory image data from source to destination, which results in...
A broadband microstrip patch antenna with double-layer substrate structure is proposed in this paper. The proposed antenna is excited by a novel L-shaped coplanar waveguide (CPW) and the main motivation for this work is to achieve wide bandwidths for Wibro (2300-2390MHz), Bluetooth (2400-2484MHz) and S-DMB (2605-2690MHz) operation. The experimental result shows that the proposed antenna with three...
While Wireless Local Network (WLAN) mesh network has been actively explored for a few years, there are still some technical challenges existing, such as optimal routing, fairness and mobility management. Hybrid Wireless Mesh Protocol (HWMP) is proposed in draft standard as a recommended routing protocol for WLAN mesh network, however, it only takes hop count into account, which may result in node/link...
For middle-speed and four-stroke marine diesel engine, a new Main Engine Remote Control System based on distributed processing and dual-redundant CAN network communication technology was presented. It includes engine control unit, indicating panel unit, engine safety unit, main engine interface, digital governor unit and distributed processing unit. System data can be exchanged by dual-redundant CAN...
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