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Drive system is responsible for energy transmission and mechanical movement.
Due to the special property of microwave, microwave technology develops very fast.
The molecule's rotation is disturbed and limited because of the molecule irregular thermal movement and the inter-affect between the nearby molecules.
Following factors need to be considered for choosing microwave drying cavity size: (1) how to achieve high efficiency; (2) how the field inside the cavity can be well-distributed.
As the round shape cavity has the properties of the normal resonant cavity, it can resonant at some certain frequencies, meanwhile the microwave energy can efficiently coupling into the cavity.

It has a number of advantageous properties such as high dielectric constant, excellent optical transmittance, high chemical stability, low cost and nontoxicity.
Compared with experimental research, theoretical calculation research overcames the adverse effects induced by experimental factor.
DFT is a universal approach to the quantum mechanical many-body problem, where the system of interacting electrons is mapped in a unique manner onto an effective non-interacting system that has the same total density.
One important factor of effecting photocatalytic activity of TiO2 is that the band gap between conduction band and valence band.
(a) DOS of pure anatase TiO2 (b) DOS of Y-doped anatase TiO2 These results do not affect the accuracy of comparing the related properties of crystals.

Introduction In-situ stress is natural stress existing in the stratum that is not affected by engineering disturbed, also called rock initial stress, absolute stress or original rock stress.
It is the fundamental force of deformation and failure of surrounding rock and supporting structure in mining engineering and underground stope, is the necessary premise condition making sure rockmass mechanics properties of mining engineering, analyzing the stability of surrounding rock, realizing design and scientific decision-making of mine rock excavation[1,2].
Therefore, accurately mastering the size of rock stress in mines, direction and distribution status and change rule, combined with engineering geological survey in mine area, physical and mechanical properties test of rock mass and its stability analysis, has significance for theoretical studies of mine pressure and solving practical engineering problems of rock mass, provides scientific data for mining and design of mines, pressure analysis and stability evaluation of surrounding rock and safe production in mines.
Conclusions (1) According to the characteristics of expanding area in Tao’er coal mine, fully considering the effect factors of in-situ stress measurements, this paper tests in-situ stress using stress release method of hollow inclusions in practice, carries out reasonable arrangement of station points and testingin the light of the actual situation, accuracy of testing results can satisfy the needs of analysis and research

Introduction Box-shaped parts of deep drawing[1] is a typical non-axisymmetric parts, because its forming process is affected by many factors and become very complex, so the study of its forming process is different from the axisymmetric curved pieces, there are mature pieces of axisymmetric shape theoretical analysis and a better failure prediction criteria as a guide.
This paper studied the forming properties of box-shaped corner parts using numerical simulation software Dynaform from the size of die radius, BHF and different materials, etc., and obtained their influence laws.
The flange deformation zone is the main deformation zone, but the ability to deform of the deformation zone depends on the intensity of the risk profile, that is, the strength properties of the material itself, anisotropy play a decisive role.
Beijing: Mechanical Industry Press(1982), p16-35(In Chinese).

However, the casting conditions and subsequent heat treatment in some cases are also important factors which influence both the corrosion rate and morphology of attack [7-8].
AZ91) whose mechanical properties and corrosion behaviour are well established [5].
Differences in potential between pure Mg5Gd and those containing Mn are not large but the corrosion resistance is largely affected.
Rokhlin, Magnesium Alloys Containing Rare Earth Metals: Structure and Properties, Taylor & Francis, 2003.

A great deal of experimental and simulation studies have been conducted to understand the nature of twinning and detwinning and their effect on mechanical properties [4-9].
Attempts have been made to investigate how the reorientation of grains from twinning-detwinning affects texture evolution and macroscopic material properties [3, 10-13].
[11] Godet, S., et al., Use of Schmid factors to select extension twin variants in extruded magnesium alloy tubes.

Research on Modeling and Reasoning Framework of Ontology-based Equipment Selection and Matching Expert System in Fully Mechanized Caving Face Qingliang Zeng1,a, Zhihai Liu1,b, Lirong Wan1,c and Yonghua Zhao1,d 1 College of Mechanical and Electrical Engineering, Shandong University of Science and Technology, Qingdao Shandong, China, 266510 a qlzeng@sdust.edu.cn, bzhihliu@126.com, cwanlr666@163.com, dmanship@163.com Keywords: Fully mechanized caving face equipment, Ontology, Expert system, Protégé, JESS Abstract.
The selection and matching result is affected by a number of objective factors and is one-sidedness, so there is no guarantee of the optimality results.
It is used to reason about the properties of that domain, and may be used to define the domain.
OWL includes hierarchical structural information between classes or properties.

Design and Testing of a Modified Parallel Flow Field for Uniform Flow Distribution in PEMFuel Cells Mohammad-Javad Jazaeri1,a and John Andrews1,b 1School of Aerospace, Mechanical and Manufacturing Engineering RMIT University, Australia as3300254@student.rmit.edu.au, bjohn.andrews@rmit.edu.au Keywords: PEM fuel cell, flow channel design, uniform flow distribution, parallel flow pattern, dimensional analysis and similitude.
Computational fluid dynamics (CFD) results have found that channel depth is the most influential factor in fuel cell performance [10].
Channel depth and width affect flow distribution and fuel cell performance.
Manufacturing Process Many researchers are using metallic plates, like stainless steel, because of high electrical and thermal conductivity, low cost, easy manufacturability and good mechanical property in thin form [12].
Graphite, on the other hand, provides an excellent corrosion resistance, good electrical and thermal conductivity, and necessary mechanical properties like rigidity [1].

CRSS is given by a modified Bailey-Hirsch model: , (2) , (3) where , , a, , and denote the lattice friction stress, the interaction matrix between slip systems, a numerical factor of the order of 0.1, the elastic shear modulus, the magnitude of Burgers vector and the density of statistically stored dislocations (SSDs), respectively [7].
In the results of both analyses, prismatic and basal slip systems operate in the grains 1 and 2 due to their high Schmid factor (=0.5), respectively.
Thus, the reasons for the activity changes of the prismatic slip systems are changes in mechanical interactions between grains 1 and 2.
If there is any spaces between crystal grains after the deformation, mechanical constraints exist to conform the grain boundary of one grain to that of the other grain.
(1)Work hardening properties affect the activities of slip systems in the neighboring grain even though the grain boundary is parallel to the loading direction

In severe case perforation or explosion may be caused, which affects the normal transportation of natural gas and people's life and property safety.
Among them, the robot developed by Professor Zheng Jun of Beijing University of Technology uses four-claw elastic centering mode to realize the accurate centering of detection device, uses gas pendulum level sensor to correct attitude angle, and uses alternation of ring laser and light source to reduce interference of environmental factors.
At present, main centering means includes supporting wheel contact centering and mechanical centering.
The two methods both have high requirement of mechanical processing and assembly level.
The environmental factor also has a very big impact on aligning.