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High order discretization method is one of the most popular research topics on Computational Fluid Dynamics (CFD). However, the development of visualization tools suited for high order methods obtains not as much attention. Most of the software used to visualize numerical solutions do not support high order data format. To visualize the high order solution, the most common method is to tessellate...
OpenFOAM is a framework of the open source C CFD toolbox for flexible engineering simulation, which uses finite volume method (FVM) in the discretization of partial differential equations (PDEs). The problem solving procedure in OpenFOAM consists in equations dicretization stage, equations solving stage and field limiting stage. The best parallelism is limited by the equation solving stage, which...
Big Bang-Big Crunch Algorithm (BBBC) is a theoretical framework of analyzing a set of alternatives to reach the best outcome. An algorithm of Hybrid BBBC with the objective to minimize the makespan is presented to tackle the job-shop scheduling problem. The initial solutions to the typical NP-hard problem are generated according to different heuristic strategies in a combination way. Modified BB strategy...
With the security situation in Cyberspace constantly becoming worse, Cyber threat detection has attracted a lot of researching attentions. In this paper, existing detection technologies are firstly reviewed. Secondly, a framework of capturing the abnormal traffic of botnets is proposed. Major modules and key detection techniques are presented at the same time. The hidden threat detection in physically...
In order to improve the automation of agricultural irrigation and save water resources, combining with the characteristics of soil in arid and semi-arid areas, this paper designed a soil moisture monitoring and farmland drought system which based on PLC and GPRS technology. The system can achieve remote monitoring of the soil moisture and irrigation pumps by Wince configuration software with the help...
Focused ultrasound (FUS) with microbubbles (MBs) has been approved to achieve local blood-brain barrier disruption (BBBD), increasing the delivery of therapeutic agents into brain. Previous reports have demonstrated the use of medical imaging system (ultrasound, CT, MRI, SPECT, or PET) to observe the redistribution of the delivered substance. However, the redistribution of elements such as zinc or...
The aerodynamic coefficients of iced quad-bundled conductor varying with attack angle determined by wind tunnel test are presented. A cable element with torsional degree-of-degree used to simulate the iced conductor is obtained in ABAQUS software by releasing the two bending degrees-of-freedom and setting the material to be incompressible. The aerodynamic loads varying with attack angle are applied...
As the characteristics of SEMG are weak and vulnerable to external noise, it must to establish the appropriate acquisition and amplification system. INA128 chip is used to be as the core IC of the SEMG amplifier. The IC UAF42 is used to be the notch filter to keep out of frequency of 50 Hz. Multisim2001 is used to simulate and test the SEMG amplifier is feasible. The amplifier can be used to help...
Full-system emulation on FPGA(Field-Programmable Gate Array) with real-world workloads can enhance the confidence of SoC(System-on-Chip) design. However, since FPGA emulation requires complete implementation of key modules and provides weak visibility, it is time-consuming. This paper proposes FEMU, a hybrid firmware/hardware emulation framework for SoC verification. The core of FEMU is implemented...
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