Due to the complexity of the high-voltage experiments and the influence of unknown stray capacitance, the completed high-voltage divider is not a patch on it has been planned. The solution of the leading ANSOFT based on physical prototype could simulate and verify the design with lightning speed and perfect accuracy; but its own modeling function is too limited to meet the engineering modeling demand well. With the powerful parametric design capabilities, the modeling software AutoCAD could simulate complex form. A combination of CAD and ANSOFT is proposed in this paper: at first make 3-D model of the high-voltage divider based on AutoCAD, then by the interface between them, the model is imported to the Maxwell to simulate the magnetic field distribution, which is the finite element analysis software of static-magnetic field. According to the results, this method could effectively improve the modeling speed and quality, and simplify the analysis workload.

No abstract

Abstract:Forward osmosis (FO) process is a new membrane separation process that developed in recent years; it is driven by the osmosis pressure difference of solution on both sides of membrane. Forward osmosis process don't need to force energy-driven extra, and the main energy consumption of the whole craft focuses on draw solution regeneration process, therefore, draw solution process relates directly to the running cost of the whole forward system.

Physical simulation model of γFe → αFe grain nucleation & growth in isothermal solid-state transformation and the rule of grain nucleation & grain growth’s boundary migration are established. The Genetic Algorithm is introduced in the process of grain nucleation & growth. The grain boundary migration agrees with the theory of grain growth. The system free energy ΔG calculation formula is exported. The thermodynamic criterion of new nucleus growing up is that new grain average radius rc is bigger than theory critical average radius rc0 when ΔG is achieved ΔGmax, ΔG is continually decreased at the remaining transformation, the final energy ΔGf is less than initial energy at the end of transformation; be influenced by the limit of nucleation number N.

The design principles and implementation of a high-precision temperature and humidity’s monitoring and controlling system is introduced in this paper. The data acquisition and transmission of temperature and humidity node in distributed network is realized by the effective use of high-precision temperature and humidity sensor and CAN-bus. Then the principle experiments are carried out, which indicates that the system overcomes the shortcomings of the traditional temperature and humidity monitoring system, such like low transmission rate and poor real-time service, improve the accuracy of the system acquisition and meets increasingly stringent project monitoring and control applications.