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The model engine development for CGF entities is designed and realized based on ldquoabstract factoryrdquo and ldquofactory methodrdquo design pattern. Firstly, the entities factory manager encapsulates the responsibility and the process of creating CGF entities, and provides an interface for creating families of related or dependent CGF entities without specifying their concrete classes; then, each...
In order to generate self-similar network traffics, researchers designed network traffic simulation system using sequential methods to generate network traffics with self-similar property on a short time scale. But there is one difficulty in how the simulation system can generate network traffics with high accuracy on a much larger time scale. So, in this paper, we present an architecture design for...
The Peer-to-Peer (P2P) technology being widely adopted in today's both academic research and practical service providing, has many potential advantages, including high scalability and cost-effectiveness. However, the behavior of these P2P systems under large scale and complex interactions is still poorly understood and many challenges in improving their performance remain. A fundamental problem in...
A multi-species prairie composed primarily of clonal plants can achieve different ecological functions. They can be a good source of biofuel, a mean of water purification in agriculture or a biodiversity guardian. The goal of the virtual prairie project is to study the fundamental mechanisms involved in the population dynamic of a prairie and the optimum engineering design of prairies serving these...
This paper is concerned with the application of Monte Carlo method in demography. In the past, most of scholars researched population at the macro level, just little at the micro level. Refer to SOCSIM and CAMSIM, we design a Monte Carlo simulation system in demography, which is micro simulation. Logic of this algorithm is easy, but the load of system is very heavy. Enormous computing power of computers...
This paper describes how to synthesis black-ink painting. We propose a brush model. It use some attributes to capture the essential features of the brush, and a suitably powerful modeling for its behavior. In order to produce the interactive controllable and structured black-ink painting effects with simple input instrument, we initialize a data structure of brush to simulate different brushworks...
Experimental simulation platform can help to train students' interest of studying and support the learning of theory effectively as the supplement to the traditional electronic technology experiments. On one hand, the platform inherits the advantages of the maneuverability and easy participation; on the other hand, it can make use of the computer to show its features, such as intuitiveness, dynamic...
Composed of varieties of components representing behaviors from different disciplines, complex product can be described by a group of subsystem models and the interaction between them. Simulation of the product is always performed by different processes located at distributed computational resources with the rate of iteration different and inter-process communication intense. A simulation framework...
One drawback with the simulation analysis and evaluation system of satellite navigation systempsilas service performance on positioning, velocity-measuring and timing is that it takes the analyzers too much time to run the simulation. A pc cluster based parallel simulation solution is proposed, using the analysis of global gridpsilas dilution of precision as an example. For load balancing, three schemes...
A notion of logic time and logic time stamp are introduced to control running order for single-period and multi-periods simulation system. Then a synchronous startup schedule strategy is designed, and its technology essential and implementation flow are discussed. According to the time stamp and the simulation logic time of interactive data, the measurement and compensation method of time-delay in...
In this paper, we describe a cluster server, Linux virtual server cluster, formed by various inexpensive personal computers for scientific computing. This cluster has many favorable features, including lower cost, load balancing, and dynamic scalability. Application of this cluster in the simulation of photochemistry reaction is also presented.
A "man-in-the-onboard-loop" solving scheme is proposed in order to overcome the disadvantages of UAV control method and solve the problems on UAV pilot training. This scheme is an integration platform for UAV telepresence and simulation. It uses "telepresence" virtual reality technology to merge the dynamic images from airborne camera and the geography data information generated...
Computer architecture simulation and modeling require a huge amount of time and resources, not only for the simulation itself but also regarding the configuration and submission procedures. A quite common simulation toolset (SimpleScalar) has been used to model a variety of platforms ranging from simple unpipelined processors to detailed dynamically scheduled microarchitectures with multiple-level...
This paper presents the results of an experimental study on designing for self-efficacy in a game based driving simulator. Self-efficacy refers to how peoplepsilas beliefs in their capabilities affect their actions. The results show that the design of the feedback system can be used to increase self-efficacy measures thus affecting performance in a driving simulator environment. Self-efficacy has...
Building on the extensive research in Virtual Reality (VR), we are proposing a new dynamic prototype for modelling and simulating carbon emissions in a virtual village called VIRVIL. VIRVIL is a simulated settlement for the assessment of the impact of low and zero carbon technologies and measures in the built environment. The prototype will focus on the impact on the community as a whole, as well...
Hardware-in-loop (HIL) real-time simulation and &test system for permanent magnet motor (PMM) is presented in this paper. Considering the low credibility of digital simulation issues and the complexity of advanced control algorithm verification, the real-time simulation platform based on dSPACE is built. The specific I/O interface and driving circuits are designed to achieve the signal insulating,...
Article presents new idea of incorporating concurrent simulations into education process for power electronics. Advanced laboratory tools like PCI data acquisition cards allows simultaneous registration of many signals with high accuracy and resolution in the practically unlimited amount of time. Modern concept and method of such concurrent research are described. The ability to implement these research...
In this paper we introduce a visualization application for a vehicle simulation with an automatic pilot. The application is written in OpenGL and includes a model of a vehicle (a motorcycle) based on the physical laws of motion, including kinematics, gravitation, and friction. The vehicle can be controlled by the user through keyboard and mouse commands, as well as by an automatic pilot. The latter...
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