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This paper proposes an effective electromagnetic analysis method for simulating periodic organic solar structures. The Finite Element Method (FEM) is derived to analyze the Organic Solar Cell (OSC), and the Periodic Boundary Condition (PBC) is enforced on the boundary of the OSC to model the infinite organic solar structure. So that the infinite organic solar structure can be solved by analyzing only...
Discriminating Distributed Denial of Service (DDoS) from Flash Crowds (FC) is a tough and challenging problem, because there are many similarities between each other existed in network layer. In this paper, according to an extensive analysis of user traffic behavior of DDoS and FC, it can be found that some traffic abnormalities are existed between Bots and legitimate users. So a behavior-based method...
The development of foreign trade is inseparable from the transportation. Chongqing, as a southwest inland city, plays an important role in YUXINOU international railway. And it also has made a considerable progress on foreign trade after decades of the reform and opening-up policy. This paper takes the YUXINOU as the study subject and uses the econometric model analysis method to study the relationship...
In the opportunistic network with social attributes, message forwarding based on social relations often has good communication efficiency. The existing opportunistic network routing algorithms are based on the static social relations. But in practical application scenarios, the moving nodes make the network social relations dynamic evolution with time, so the social relation of the opportunistic network...
The tension control technology of unit-type gravure printing machine is very important. The constant printing tension is the key factor to ensure the overprinting quality. So the research on modeling theory and control technology of control system becomes an important problem to restrict the technology development of unit-type gravure printing machine. In this paper, the winding tension system of...
A new type of tri-axial piezoelectric accelerometer is proposed in this study. It consists of a seismic mass and four cantilever beams that is distributed in a shape of X. Analytical model and FEM analysis were conducted to study its charge sensitivity and the fundamental/first order resonance frequency in the Z-axis, X-axis and Y-axis direction. The errors between the calculated results from analytical...
Production yield of SRAM cells is a key bottleneck for supply voltage scaling in low power circuits. Yield-driven design for such circuits are difficult as yield analysis for such circuits are usually very expensive. In this paper we proposed a hybrid performance model that can map the process parameters as well as design parameters to performance metric such as SNM, WNM and read/write speed. Once...
This article discusses the influence of customer relationship proneness in hairdresser's context. Data are collected using online survey. A conceptual model about customer relationship proneness, relational benefits, customer commitment and customer loyalty is proposed to explain the influence. Structural equation modelling is used to analyze the data. Empirical results show that customer relationship...
This work develops a static analysis to create a model of the behavior of an Android application's GUI. We propose the window transition graph (WTG), a model representing the possible GUI window sequences and their associated events and callbacks. A key component and contribution of our work is the careful modeling of the stack of currently-active windows, the changes to this stack, and the effects...
Android software presents many challenges for static program analysis. In this work we focus on the fundamental problem of static control-flow analysis. Traditional analyses cannot be directly applied to Android because the applications are framework-based and event-driven. We consider user-event-driven components and the related sequences of callbacks from the Android framework to the application...
In e-commerce and e-service environments, transaction context is important when evaluating the trust level of a seller or a service provider in a forthcoming transaction. However, most existing trust evaluation models compute a single value to reflect the general trust level of a seller without taking any transaction context into account. In the literature, a trust vector approach has been proposed...
In view of the shortcomings of bore and section data-based modeling,, a new kind of data structure is proposed in this paper to describe three-dimensional geological body structure based on borehole data. Based on OpenGL library, the 3D geological modeling and visualization of complex geologic body were achieved in Visual C ++ 6.0. Experimental data test shows that the data-structure not only can...
This paper briefly introduces the basic principle of unified power flow controller (UPFC) and the PSASP user-defined modeling. Full consideration to the electrical characteristics of UPFC device and its energy transfer with the power system, established the power flow model of UPFC basing on the power injection method, then the power flow model of UPFC based on the Power System Analysis Software Package...
In order to analyze the impact of multi-functional support equipment failure, tasks of multi-functional support equipment during maintenance process were described, and maintenance plan of multi-functional support equipment was taken into consideration. Maintenance support process model considering multi-functional support equipment failure was put forward, and thereafter a simulation model was built...
An analytical framework has been developed to describe the locking behavior of millimeter (mm) wave current-mode logic (CML) frequency divider. Unlike traditional analysis based on RC delay, the proposed model is established with injection-locking concept from analog perspective. Both analytical formulas and graphic interpretation are provided for design insights. The model has been validated by exhaustive...
In order to improve the precision of network security situation prediction, a combined method for prediction was proposed. For the nonlinearity of network security situation value, the Method predicted the security situation by using ARMA model and Markov model. On this basis, it optimized the predicted results with combined strategy. The analysis of the example indicates that the combined method...
Analysis on materiel support process considering failure of support equipment was presented. Basing on queuing system of priority, a virtual costumer which has a priority in service was created representing support equipment failure. Maintenance process model considering support equipment failure was established. Comparing to traditional models, the impact of support equipment failure was revealed...
This paper presents a comparative study between Partial Least Squares (PLS) method and support vector regression (SVR) in modeling the relationship between the near infrared spectra (NIRS) and the protein contents in Cordyceps militaris mycelia powder samples. Both of the models were optimized by selecting the suitable spectra preprocessing methods and the best modeling parameters. And then the optimum...
The loading condition of complicated structure is very sophisticated. The finite element method in doing mechanical loading analysis possesses certain limits because of the difficulty in modeling and mesh generation. The use of particle swarm optimization to improve the parameters of vector machine can avoid the blindness caused by men in selecting parameters, thus solving the problem produced by...
The problem of Optimal Path Analysis is an important content of spatial analysis in GIS. Based on the classical shortest path algorithm -Dijkstra and the Network Model of ArcGIS Geodatabase, the Optimal Path Analysis is realized by using redevelop function of ArcEngine. Practicality and reliability of the method is verified in Zibo Fire Emergency Management Information System Construction.
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