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A system optimization framework based on design of experiment (DOE) and simulation is proposed. Simulation is effective in the optimization of many complex systems, however, it is time consuming and tough. DOE can reduce the number of test cases drastically while ensuring input combination is of wise coverage of design space. A framework incorporating simulation and DOE is proposed, which provides...
To deal with the problems of water content and high viscosity in municipal activated sludge, which lead to a restriction in resource utilisation, we used calcined magnesia to treat the sludge. As shown in the X-ray diffraction analysis, compared with untreated municipal activated sludge, the mineral composition, including kaolin [Al 2 Si 2 O 5 (OH) 4 ] and chloritoid...
The quantitative evaluation of system-of-systems architecture is a very important content in the research area of system-of-systems. The framework of system-of-systems analysis process and method of system-of-systems architecture description are reviewed. A new approach of system-of-systems architecture evaluation is proposed. The proposed evaluation approach is a bi-level approach. In the higher...
Recently, Sensor network have gained popularity for a variety of applications such as patient monitoring, military sensing and tracking, etc. When performing monitoring tasks in hostile environments, security requirements become vital important due to the vulnerability of various attacks. Contemporary wireless sensors have limited battery, computation and memory capacity. The energy-constrained nature...
This paper aims to use the theory of service quality evaluation and the method of mathematical statistics, initially establishes a medical service evaluation index system based on the archival research, experts consultation and patients communication. According to the prepared index system, the authors use questionnaire survey method to explore the major considered factors when patients evaluate the...
As electronic commerce develops, its success critically depends on establishing, maintaining and managing customer trust in e-commerce Web sites. This paper identifies critical success factors that enhance customer trust in e-commerce Web sites and examines those factors in relation to the e-commerce success metrics using qualitative and quantitative methods. The result suggests that certain functional,...
Various clustering methods based on the behavior of real ants have been proposed. In this paper, we develop a new algorithm in which the behavior of the artificial ants is governed by fuzzy set. Firstly, we define the average distance between objects, and the average distance is the domain of the object similarity. Secondly, the similarity between objects is mapped a domain of fuzzy sets by membership...
In this paper, we derive the distribution of the DCT coefficients for a fixed block variance, and invoke the central limit theorem to show that this is approximately Gaussian. Then, by allowing the block variance to have a statistical distribution itself, we analyze when the DCT coefficients would follow a Laplacian distribution. Such knowledge would be useful, for instance, in quantizer design, information...
In order to protect the sustainable and healthy development of urban public transport system, relieve its internal price competition, this paper proposed a ticket pricing model of urban rail transit based on Game theory. Through consideration of different radiation scope under different operation stages, this paper construct rail and bus transit's ticket income models, and by Nash equilibrium got...
In this paper, it presents an effective caching algorithm based on random access with the finite storage size in distributed server architecture for networked video services. Under the general video traffic condition, it is observed that the storage size and total popular contents of edge video server affect the performance of the total video sever system, and channel bandwidth between edge video...
This paper presents a L1 band low noise integrated global positioning system (GPS) receiver chip using 0.18-um CMOS technology. Dual-conversion with a low-IF architecture was used for this GPS receiver. The receiver is composed of LNA, down-conversion mixers, band pass filter, received signal strength indicator, variable gain amplifier, programmable gain amplifier, ADC, PLL frequency synthesizer and...
In order to protect the whole benefit of urban rail transit system, ease the conflict of government, Metro Corporation and passengers' different interest requirements, as well as balance their rights and performance, this paper proposed an urban rail transit's pricing method based on Shapley value. By analyzing the benefit relationships of urban rail transit system, construct the government, corporation...
Strategic innovation is the combination of innovation and corporate-level strategy and the important source of sustainable advantage under environmental uncertainty, but it is at its elementary stage of research. This paper systematically explores the antecedents, processes and consequences of strategic innovation. External environment uncertainty, internal organization characteristics and top management...
The social old-age insurance of urbanized-drafted farmer is implemented "three point" raising pattern in the majority area of our country, and the majority places mainly use the basic social security old-age insurance pattern. However, there exists many problems in reality, for example, drafted farmer's enthusiasm to senate the guarantee, the senate guarantees rate and so on. Through investigate...
In electronic product, reliability of solder joint has big impact on the function of the whole electronic product. In the design period of the package, it is important to predict solder joint thermal fatigue lifetime and analyze the effect of each factors on the lifetime of solder joint. Finite Element Analysis (FEA) based solder joint lifetime prediction method, which used Anand viscoplastic constitutive...
Based on TM data of DongGuan, Referencing to the national land classification standards, we divided the land use of DongGuan into four types: water, green land, bared land and building land. In improving the accuracy of classification data, based on the analysis capabilities of GIS and scale theory, in Quantitative scale, we have analyzed the characteristics of landscape pattern changes and Grain...
The combination and scatter of the tourism resource directly determined the development and orientation of regional traveling ecosystem, and the new entity after the combination has more different features than the original one. This paper defined the annotation and extension of the concentrative region of tourism resources (CRTR), developed the niche theory of the CRTR. And a case study of Zhejiang...
Based on the Model-Driven Testing (MDT), this paper proposed a model-driven conformance testing method for 3G network management north bound interface in order to minimize the impact from specifications changes and technological innovations. The core thought of the method is to derive interface technology independent test model (PIT) from platform independent model (PIM) defined in analysis specifications...
Hollow spheres of anatase TiO2 have been prepared by using titanate butyl as titanium source and yeast as templates based on the surface bio-functionality of the microorganism, in which the yeast templates were calcinated to remove subsequently at 500°C. The products are characterized by scanning electron microscopy (SEM), X-ray powder diffraction (XRD) and Fourier transform infrared spectrum (FT-IR)...
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