Detecting collisions and calculating physically correct collision responses play an important role when simulating the dynamics of colliding rigid bodies. Virtual reality applications such as virtual assembly planning and ergonomy studies can especially profit from advances in these directions, because they enable an interactive and intuitive manipulation of objects in virtual environments. Thi...

Purpose: Study construction methods of virtual laboratory for college computer hardware course group and discuss feasibility and practicability of virtual lab; Method: Introduce principle and technologies of the virtual lab, analyze construction method of the virtual test, establish the online college open laboratory platform based on college experimental platform, and design and simulate class...

In this paper, we illustrate the development of a realistic simulation of a humanoid robot model in a virtual environment using USARSim (Urban Search and Rescue Simulator). USARSim provides an accurate 3D simulation of a virtual environment with a detailed rendering and a realistic physics. Moreover, USARSim allows users to observe the virtual environment from different views. One of these is t...

A general-purpose virtual audio system called the Audio Reality Engine (ARE) is proposed in this paper. Based on the investigation of the addition of spatial-localized sound to virtual environments, we discuss in detail the design and implementation techniques, including HRTF model based on neural network, the simulation of moving sound sources, the simulation of Doppler effects, and room acous...

This paper discusses pedagogical improvement in engineering education that can be made through integration of visualization and simulation modules in undergraduate curricula. The authors are leading a planning effort to transform the existing engineering curricula to visualization and simulation enhanced curricula. The emphasis is on providing interactive visualization and simulation modules th...

A novel interactive virtual needle insertion simulation is presented. Simulation models are based upon planar tissue deformations and forces measured during needle insertion experiments. Users are able to control a three-degree-of-freedom virtual needle as it penetrates a linear elastostatic tissue model, while experiencing steering torques and lateral needle forces through a planar haptic inte...

We review the evolution and current status of robotic equipment and technology in urology. We also describe future developments in the key areas of virtual reality simulation, mechatronics and nanorobotics. The history of robotic technology is reviewed and put into the context of current systems. Experts in the associated fields of nanorobotics, mechatronics and virtual reality simulation simul...

The present study compared the value of using a virtual learning simulation compared to traditional lessons on the topic of evolution, and investigated if the virtual learning simulation could serve as a catalyst for STEM academic and career development, based on social cognitive career theory. The investigation was conducted using a crossover repeated measures design based on a sample of 128 h...

This paper presents an architecture and a design for a Federation Object Coordinator (FOC) for simulation based control and analysis. This research focuses on developing a methodology for implementing a distributed simulation control mechanism which can be adopted to virtual manufacturing or virtual enterprises. In this method, distributed fast or real time simulation models interact with low l...

BACKGROUND Elevated blood glucose (BG) concentrations (Hyperglycaemia) are a common complication in critically ill patients. Insulin therapy is commonly used to treat hyperglycaemia, but metabolic variability often results in poor BG control and low BG (hypoglycaemia). OBJECTIVE This paper presents a model-based virtual trial method for glycaemic control protocol design, and evaluates its gen...