The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In this paper, we present a theoretical and experimental study about the carrying capacity of flight dielectric elastomer (DE) balloon in electromechanical performance. This paper deals with some structures which are consist of helium balloons or air balloons based on theoretical analysis. We compared the two kinds of gas balloons at the same initial pressure, air and helium, there was no great difference...
Mechanical ventilation is an important method to help people breathe. Respiratory parameters of ventilated patients are usually tracked for pulmonary diagnostics and respiratory treatment assessment. In this paper, to improve the estimation accuracy of respiratory parameters, a pneumatic model for mechanical ventilation was proposed. Furthermore, based on the mathematical model, a recursive least-squares...
In this paper, an efficient numerical approach is proposed for analyzing the scattering from PEC objects above a lossy half space over wide angular and frequency band. One of the principal tools for the analysis of scattering from targets located in half-space is the method of moments (MoM) and the half-space multilevel fast multipole algorithm (MLFMA). Since the surface current and the scattered...
Localization is the foundation of several techniques and applications and plays an important role in Wireless sensor network (WSN). A variety of localization algorithms are based on Received Signal Strength Indicator (RSSI). Although the RSSI-based localization technology needs no additional hardware, the accuracy of this method could not meet the requirements of some applications. A novel Localization...
We present a new particle-based method for high viscosity fluid simulation. In the method, a new elastic stress term, which is derived from a modified form of the Hooke's law, is included in the traditional Navier-Stokes equation to simulate the movements of the high viscosity fluids. Benefiting from the Lagrangian nature of Smoothed Particle Hydrodynamics method, large flow deformation can be well...
In this paper, we implement a hybrid combustion model which incorporates the fire simulation and solid burning together. To achieve real-time performance, GPU is used to solve the Navier-Stokes equations with CUDA programming, also used to visualize the turbulent fire. Experiment results prove our method's efficiency.
MoldFlow software is used to analyze plastics flowing status during the forming of circular plastic plate. Comparison and analysis is made in four different melt temperatures by MPI software. It fully reveals the outstanding effect of MPI software in the injection system and development of injection mould.
We present a novel method using particle importance to accelerate the traditional smoothed particle hydrodynamics based fluid simulation. Reynolds number and vorticity are exploited as the new criteria to evaluate the importance for each particle. If a particle is unimportant, its current acceleration and velocity are used to update values in the next time step with the complex state updating step...
Jitter decomposition is important for identifying root sources of jitter. The limitations of the existing methods for jitter decomposition are discussed and a new approach with a combination of fast Fourier transform and time lag correlation is proposed. The new method reduces the number of equations and improves efficiency of jitter decomposition. Simulation is performed to validate the proposed...
This paper presented a nonlinear voltage modeling procedure of a proton exchange membrane fuel cell (PEMFC) stack by neural networks based on particle swarm optimization (PSO). PEMFC stack is a complex nonlinear system which is hard to model by traditional ways. So neural networks based on particle swarm optimization (PSONN) was developed to identify a nonlinear PEMFC stack voltage model. In the paper,...
Operation temperature of a molten carbonate fuel cell stack should be controlled within a special range in order to improve availability and performance of fuel cells. In this paper, a predictive control algorithm based on the Takagi-Sugeno fuzzy model is developed for the temperature of a molten carbonate fuel cell stack. Based on the future outputs predicted by a Takagi-Sugeno fuzzy model, a discrete...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.