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Every link of power system may exist security risks, power industry funds and technology is highly concentrated, the production equipment is very expensive, its operating parameters almost reached the extreme, physical simulation of its production process of experimental teaching costs are extremely high, resource consumption is huge, and may cause malignant environmental pollution. Teaching, training...
This work aims to present a methodology of communication between a criminal database and a virtual environment for forensic study, using a proprietary software and a virtual reality prototype, in order to support forensic science activities. The objective is to assist the forensic professional offering the use of criminal investigation resources inside a crime scene simulation, with sensations of...
Cu to Cu bonding technology of IC package has the potential to replace solder joint in Future trends. The Cu to Cu bonding technology compared with other joint methods for IC package, it can solve the reliability problems such as electromigration, brittle intermetallic compound or other issues. At present, Cu to Cu bonding methods have been wide developed, but the microcosmic mechanisms of Cu to Cu...
In the modern industry, human-robot collaboration is becoming more and more important. With the quick development of the small production, the demand of flexibility is growing heavily. Gesture recognition is important for the collaborative work of humans and robots. In industrial applications, the performance of such systems affects the safety of human workers and their manufacturing efficiency. In...
Today's trends towards automation and robotics, fueled by the emerging Industry 4.0 paradigm shift, open up many new kinds of control and optimization problems. At the same time, advances in 3D simulation technology lead to ever-improving simulation models and algorithms in various domains, such as multi-body dynamics, kinematics, or sensor simulation. This development can be harnessed for Simulation-...
A coupled fluid-mechanical dynamics analysis method is presented in this paper. A commercial simulation package is used for mechanical dynamics calculation, which employs user-developed dynamic-link library files as routine interface to enable data exchange with gas pressure calculation. This part is responsible for the calculation of mechanical motion, including the tripping of trip trigger, releasing...
SimVascular is an open source software platform for cardiovascular simulation, providing a complete pipeline from medical image data to volumetric model construction, meshing, and blood flow simulation. Previous workshops and educational programs have utilized SimVascular, but learning assessments have not been used to rigorously quantify gains in conceptual understanding. Goal: The purpose of this...
Reliability and safety are important properties in the development of complex cyber-physical systems such as autonomous vehicles. Achieving a reliable autonomous vehicle is a challenging problem, as the unpredictability of the environment demands a reliable design methodology. Additionally, current testing procedures for ADAS features on vehicles are exhausting and time-consuming, so that a better...
Thermal management is an important aspect in designing any telecommunication base stations. Cooling is traditionally counted for 25–50% of the total energy consumption for a typical base station. Accordingly, any effort to reduce the cooling load is a considerable merit for base stations' operators. Using outside fresh air directly as coolant, in a stand-alone unit or a combination with an air conditioning...
The use of virtual simulation in industrial design and validation processes has considerably increased over the last years, due to better algorithms, affordable computational power with good performance and gradual acceptance of its results by technical experts. Nevertheless, although electromagnetic simulation has also evolved, it still does not have the same penetration in validation processes as...
This paper presents different experimental methods for measuring parasitic capacitances and inductances of direct copper bond (DBC) based power semiconductor modules. The found parasitics are compared with finite element simulations to evaluate their accuracy. A very good match of the simulated and measured stray capacitances is found. The parasitics, which are found via simulations and experiments,...
There are problems with insulation failures in high-voltage transformers due to fast transient voltages. Within novel Solid-State Transformers (SST) this problem exists constitutionally because of the SSTs rectangular working voltages. Experiments and simulations have been performed to get accurate understanding of the phenomena. The results and theories are discussed in this paper.
Planning treatment of acute cardiac events that limit the blood supply to major organs is particularly difficult for interventional cardiologists. The treatment of pathologies, such as vascular stenosis, can have numerous unforeseen consequences as the blood resumes its flow. Their decisions are largely based on 2D medical imagery and their own experience. This work in progress presents a virtual...
A capable of easy simulation program to help the design of a wheelchair is needed, because the design of wheelchair easy to move needs much time and cost. In this paper, we propose a capable of easy simulation program to help the design of a wheelchair. In our program G-code is used to control 3D model of electric wheel chair in computer numerical control (CNC). In addition, the 3D models derived...
The heat generated by self-propagating exothermic reaction can be used to melt solder and then join the components. However, the microstructure of self-propagating interconnects is different from those obtained through traditional soldering process for its unique thermal conditions. In this paper, a finite element model was established to simulate the temperature field of self-propagating joints at...
CCAMY systems in partnership with Lille University currently develops Emulatio: a simulation and diagnosis platform for multi-physic systems, using Hybrid Bond Graph. This platform is devoted to automatically build model of industrial Computer-Aided Design schematics, then generate Block-Diagrams for simulation and export Global Analytical Redundancy Relations for model-diagnosis. For this task, a...
Osteoporosis is a skeletal disorder which leads to bone mass loss and to an increased fracture risk. Recently, physics-based models, employing finite element analysis (FEA), have shown great promise in being able to non-invasively estimate biomechanical quantities of interest in the context of osteoporosis. However, these models have high computational demand, limiting their clinical adoption. In...
Fluid dynamics simulation is often repeated while changing conditions, and therefore we need to compare a large amount of results. In order to compare results under different conditions, it is effective to overlap the streamlines generated from each condition in a single 3D space. Streamline is a curved line which represents a wind flow. This paper presents a technique to automatically select and...
Atomic oxygen is one of the most important environmental element impacting spacecraft performance in LEO space environment. Materials used on the surface of the spacecraft may be eroded away through the reaction of Atomic oxygen, which also causes damage to spacecraft components, seriously reducing the spacecraft's orbit life. In order to avoid over-protection, This paper proposes an atomic oxygen...
Complementary metal oxide semiconductor (CMOS) is widely used in high reliability field, and is susceptible to single event latch-up (SEL) effect. Based on Technology Computer Aided Design (TCAD) simulation software, a typical CMOS structure is selected to simulate SEL effect and study the simulation results under different conditions. The relation between the simulation condition and the simulation...
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