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Collision detection is an important part of the development in virtual reality system. In this paper, we describe the principle, realization of AABB (axis-aligned bounding boxes) collision detection algorithm and three-dimensional frame (3D Frame) collision detection algorithm. AABB bounding box algorithm is a small amount of testing speed. Three-dimensional frame collision detection method is calculating...
This paper describes the design and realization of a kind of WLAN video telephone based on WAPI. The hardware system consisted of two parts: application processing subsystem and base band processing subsystem. Take SIP as the call control protocol, H.264 as the video codec and G711 as the audio codec. Using WAPI as the security mechanism of wireless data transmission, and solved the security problem...
With the rise of online shopping and the development of modern logistics, the express logistics has gain much development. but generally, the enterprises meet the last kilometer of informatization problem that the delivery from the network to the clients. In the paper, taking Windows Mobile 6.5 and SQL Server 2005 CE as platform, and a mobile delivery system based on smart phones by using VB.NET as...
This paper investigates whether there are asymmetric effects of monetary policy in China economy. We use logistic smooth transition vector auto regression (LSTVAR) model to focus on the nonlinearity of the whole system varying over the transition variables. The results of estimation and generalized impulse response function imply that the effects of output and inflation vary with the sign of monetary...
The traditional management style of scientific literature retrieval experiment teaching has been quite behind the content change and practical goal of this course. Specific to new features and requirements of the experiment teaching of this course, this paper uses the "aspect-oriented" idea and dynamic management engine technology and pattern and framework technology centered on middle plug-ins...
A Virtual Training System of radioactive aerosol 's concentration measurement is constructed based on Virtual Reality. Firstly, 3-d geometric models about radioactive aerosol's outer environment, detector, intelligent scaler and air sampling pump etc. are constructed, the general radioactive law based on face radioactive source is presented. These models are driving in general program platform using...
The Buffer Status Report (BSR) and Scheduling Request (SR) are important procedures based on Medium Access Control (MAC) layer in Long Term Evolution (LTE) system. First, we study the BSR, SR and Semi-Persistent Scheduling (SPS) separately, then illustrate the priority of BSR and other data when sending MAC PDUs. The issue about the priority has been definitely defined by 3GPP, but it doesn't explain...
In order to promote the constructing and maturing of Emergency logistics information system and improve the response speed to respond to emergencies, I made some survey about some major cities. Setting up a comparatively well-developed evaluation methodology of emergency logistics information system, and use pair analysis to calculate the date we got, ideally quantifiable evaluation answer is reached...
Business method patents have increasingly been sought and used in the field of E-Commerce. Despite controversies, relevant international experiences steadily develop, including practices of E-Commerce companies as well as efforts from judicial and legislative bodies. In applying relevant rules, tests for patent ability and relevant requirements differ in countries, even constantly changing within...
This paper combines institutional, stakeholder and social contract perspectives to develop a framework for analyzing the strategies of multinational corporations (MNCs) in developed countries in respect of their corporate social responsibility (CSR) practices in China. The paper first discusses the contention that due to institutional differences between China and developed countries, MNCs will have...
This study examined the determinants of foreign bank location decisions in Shanghai markets over the period of 1990 to 2009. The growing foreign presence in Shanghai was found to be related to two different policy regimes: Pudong development area foreign enterprise clustering period after China opened Pudong, and "deposit-loan-match principle" implementing period after China joined WTO....
Informationized professionals are a key factor to the information society and enterprise construction. According to the characteristics of informationized professionals and the principles, this paper has established principles, level evaluation model, providing evidence for the training of informationized professionals.
A method is developed to evaluate the current induced during startup in the vacuum vessel of EAST (Experimental Advanced Super conducting Tokamak) based on the least square algorithm. As the eddy currents distribution is axisymmetric and uneven, it is usually modeled using a thin shell approximation for the vacuum vessel. This problem is reduced to a circuit model by dividing the vacuum vessel into...
One-dimensional global optimization of a function f(x) in an interval D is still a difficult problem. In this paper, we pose a new method for finding the ε-global optimal value of f(x) in D. We first approximate the function f (x) via its partial sum of its Fourier series. We show that for given ε, we can find a partial sum sn(x) n of its Fourier series such that when n is larger than some...
Nonnegative matrix factorization method is a kind of new matrix decomposition method. It is an effective tool for large data processing and analysis. At the same time, NMF has an important performance on intelligent information processing and pattern recognition. This paper first analyses and discusses the NMF algorithms based on its basic theory. We then propose new methods of data clustering and...
It is studied that the asymptotically kn-strict pseudo contractive mapping in the intermediate sense and proved the modnified Mann iteration process with errors converges weakly to a fixed point of which is not necessarily Lipschitzian. The results presented extend and improve the corresponding results of [1-6] and many others.
Based on the output values of the index of evaluation forms and integration thinking of the combined evaluation techniques, this essay forms an indexed comprehensive evaluation method with the integration of mixed efficacy function and structural equation modeling.
In this note, we point out mean ruin time is a concept which is different from mean persisting gambled time and present theoretical and numerical solutions for mean ruin time of gambler's ruin problem. Then we employ Monte Carlo simulation to verify that mean ruin time of the gambler with less initial fortune is far less than mean persisting gambled time especially when his winning probability is...
Currently, the development of e-commerce suffers a series of ethical issues in China, and trust is the most concerned in e-commerce activities. Strengthening the trustworthiness is an important approach to accelerate the healthy development of e-commerce in China. The paper discusses the trust issue in modern society and uses the Trust Equation to analyze the issue. Finally, the paper proposes some...
This paper takes Henan province for example to establish the model which analyze the effect of rural physical and human capital investment on the farmers' income, and comes to the conclusions that both the two aspects have made great contribution to the increase of farmers' income, but the overall investment level are low, and the human capital investment enjoys a higher investment number and better...
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