SUMMERSIM

Real-time mirror reflection is employed in many virtual reality applications to achieve visuo-haptic collocation. Its use, however, necessitates adjustments to the original model as well any used input devices to compensate for changes due to image ...

Hybrid actuation system (HAS) with dissimilar redundancy conforms to the development trend of future actuation system in more electric aircraft. In this paper, a typical architecture of HAS is described and the block diagram model of HAS is established ...

For more electric aircraft (MEA), in order to reduce air craft operating maintenance costs, electro-mechanical actuators technology is a good substitution for flight controls actuation. This paper develops a nonlinear dynamic model for EMA with roller-...

Simulation of Large Scale Networks (LSN) has a broad application area. However, so far fine grain simulation of LSN faced with the problem of a high dimension mathematical model and, consequently, the results were not precise. The scalable Network ...

The phenomenon of rail bending wave deflection that occurs when a train passes through the junction of two railway tracks of completely different structures is outlined in the paper. The bending wave is created by the axle load that moves along the ...

Recent years have seen a proliferation of the use of simulation models in computational science. Most of these models have never been independently replicated by anyone but the original developer. Furthermore, there is a growing credibility gap due to ...

The Institute for Rail Vehicles and Materials Handling Technology of RWTH Aachen University has built a railway test vehicle which can perform automatic movements with sophisticated motion and localization sensors. To expand test capabilities for ...

This paper presents a model-based systems engineering approach for quantitative acquisition decisions based on cost/benefit tradeoffs. The foundation of the approach involves the mapping of three basic systems engineering metrics, namely, Measures of ...

Units in river crossing operation can be easily exposed to fire attack of enemy so that they are vulnerable to the defeat in detail since they are split over the river. Thus, rapid completion of the operation is essential to preserve combat power and ...

Agent-based models (ABM) are used to simulate the spread of infectious disease through a population. Detailed human movement, demography, realistic business location networks, and in-host disease progression are available in existing ABMs, such as the ...

System dynamics models are usually used to investigate aggregate level behavior, but these models can be decomposed into agents that have more detailed individual behaviors. Here we develop a simple model of the STEM workforce to illuminate the impacts ...

Efficient simulation of higher-index variable-structure DAE requires index-reduction during simulation. Hence, the performance of the implemented index-reduction method is crucial. When the same algorithm has to be calculated for slightly different ...

Whenever generic segmentation strategies utilizing multivariate feature classification are developed in the medical domain, testing and training solely on real world data is insufficient to validate all possible feature aspects. Instead, utilization of ...

This paper presents a simulation-based optimization integration of system dynamics and multi-objective optimization that investigates the stock management problem through the inventory management model developed by Sterman (2000). Three optimization ...

The paper describes deployment experience of a decision support system for planning fuel supplies within a network of gas stations, which is based on simulation, multi-agent and expert modeling. Authors focus on various methods used in decision support ...

Increasing model reuse and facilitating repurposing is expected to expand simulation use for better understanding biological phenomena. We demonstrate doing so in the context of liver diseases caused by toxic exposure to xenobiotics. A clinical goal is ...

Designing embedded systems has become a complex and expensive task, and simulation and other analysis tools are taking on a bigger role in the overall design process. In an effort to speed up the design process, we present an algorithm for reducing the ...

In this paper, the symbolic simulation of hybrid dynamical systems is studied and an algorithm to compute symbolic solutions for such systems is presented. The tasks to perform such simulations are introduced and an algorithm to symbolically calculate a ...

In the event of an oil spill, an essential element of responding effectively to any adverse consequences is proper planning to define tasks, personnel, and resources necessary. The plan should include coordination with appropriate local, municipal, ...

Simulating the cost of applications running on large clusters of processors poses difficulties in model definition and simulation. In this paper we propose a methodology to ease this burden. The user specifies a model describing it as a timed coloured ...

The 3D cardiac arrhythmia visualization model in this paper was developed to assist medical students and fellows in understanding the underlying electrophysiology of cardiac arrhythmias and their treatments. In this detailed cardiac model, the user can ...

The OpenFlow protocol is an example of a Software Defined Networking protocol proposed as a software mechanism for controlling the network equipments. Nevertheless, the management of OpenFlow experiments can be a difficult task considering the ...

This paper proposes a simulation model to address the problem of evaluating the benefits of collaboration between an Internet Service Provider (ISP) comprising a P2P network supporting a cache mechanism and a Web Search Engine (WSE). Through this model, ...

We use sectioning to construct a confidence interval (CI) for a quantile when applying antithetic variates, which is a well-known variance-reduction technique. Closely related to batching, sectioning starts with the batching CI and replaces the batching ...

Ever more frequently business enterprises are benefiting from the collection and analysis of large data. This paper reports on a work in progress of adapting intelligence, predictive analytics tools for analysis of medical data. While large data has ...

Trans-catheter Aortic Valve Implantation (TAVI) is an endovascular treatment for critical aortic stenosis. An early "learning curve" is important drawback of TAVI that can dramatically alter patient safety and hospital costs. There is paucity of data ...

This paper aims to deal with the automatic model composition issue by jointly using service-oriented technology and agent technology. Most existing composition methods focused on model reusability remain static and unable to self-adapt to dynamic ...

Cement augmentation techniques cover minimally invasive surgical interventions used to treat painful vertebral compression fractures. These fractures are mainly caused by decreased bone strength as a result of osteoporosis. The current training options ...

Existing wireless electromyography (EMG) solutions utilize proprietary hard- and software components for transmitting and analyzing sensor data. In this paper, we present a setup for transmission and visualization of EMG data on a tablet PC. The system ...

This paper describes a system developed to assist in model-based training of minimally invasive, laparoscopic procedures. The key factor motivating the development of the device called CAST (Computer-Assisted Surgical Trainer) is the need to improve the ...