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Particle diameters are characterized by laser particle size analyzer, and the effect of different factors on the particle diameters is discussed, respectively.
In addition, it is also used in the electronics, medical and sugar refining industry, the oil additives for its anti-corrosion and desulfurization property, the thermal insulation material and the raw material for manufacturing other magnesium salt products [1].
Recently, the particle diameter control of magnesium salt powders has attracted much attention and becomes an interesting topic in the field of flame retardants, because the particle size possesses very important influences on various chemical and physical properties of flame retardants [3-5].
The experimental results indicate that the aging time is also able to affect the particle diameters of magnesium salt powders obviously.
Thus the mechanical performance of the materials can still meet the requirement by adding enough magnesium salt flame retardants.

As for suspension, its rheological properties are affected by the particle size significantly, determining the freezing behavior of suspension and then the following sintered porous microstructure.
It is also well know that the particle size is strongly relative with the sintering behavior of matrix, which greatly influences the mechanical properties of the sintering porous ceramics.
The mechanical properties of sintering porous ceramics were characterized. 2.
The above two factors make the nano-sized particles easier to be engulfed in the frozen ice front.
Oda, Physical properties of slip casting of high pure Al2O3 slurry using porous Al2O3 glass mold, J.

The post-DCT properties were then determined on the other half.
Researchers have shown that the factors which dictate the properties of cemented carbides after cryogenic treatment include their initial microstructure and the properties of the binder which experiences the most profound changes due to the treatment.
Table 1 gives some of their properties as declared by the manufacturer [21].
This was followed by measurement of mechanical and wear properties.
Effect of deep cryogenic treatment on properties of aluminium bronze.

Because of some intrinsic properties of the PZT actuator, such as hysteresis, creep and nonlinearity effect, it’s difficult to achieve satisfactory results and control precision for conventional PID controller.
It is the core of the machinery, whose precision will directly affect the precision of the complete machine.
These inherence properties greatly limit the improvement of the high precision of the micro positioning system.
The adjustment index is (9) (10) Where is the learning rate,, and is momentum factor, .
Hangzhou, Mechanical and Energy Engineering, Zhejiang University.2008:53

Introduction With the development of industry, noise of mechanical structures has increasingly drawn more attention because its affect to environments and healthy are more important.
Modal superposition can be used to evaluate the acoustic frequency response of the cavity in the form of a linear combination of a limited number of modal eigenvectors { } { } [ ]{ }aap n i ii φφ ==∑=1 (5) Where {a} is modal participation factors, [φ] is modal eigenvectors.
The analysis flow is as follows: ①define velocity boundary conditions, impendence or admittance boundary conditions; ②define fluid material properties; ③define free boundary condition, and define jump pressure of free edge.
The analysis flow is as follows: ①define velocity boundary conditions, impendence or admittance boundary conditions; ②define fluid material properties; ③define the open surface is coupling surface between interior and exterior domain, build coupling relevant of interior and exterior domains; ④analysis, direct BEM coupling method need to build self BEM matrix of interior and exterior domain, and assemble system matrix, solve system equation, and then solve boundary variations of each model; ⑤compute radiation energy, and define field points to compute field point results. 2.3 FEM and DBEM Coupling Method.
About infinite element method, the coordination origin selection, infinite element surface selection, etc. affect the simulation results.

In order to realize the long-term durability of those mechanical structures, fatigue properties of the respective components should be clarified in very high cycle regime.
Mechanical properties of respective series are shown in Table 2.
Mechanical properties Fig. 1 Shape and dimensions of fatigue specimen polishing, shot-peening and electrochemical-polishing pre-treated with shot-peening.
Referring to both S-N diagrams, it is indicated that hardness, residual stress and surface roughness do not affect significantly the S-N properties of SWOSC-V steel in the very high cycle regime.
Peterson, Stress Concentration Design Factors, John Wiley & Sons, Inc., New York, (1962), p.50

The plan-based methods, which require the generation of the manufacturing process plans, exploit more complicated relationship between product properties and manufacturing process.
It involves the manipulation of structural configuration and material properties at the same time.
Commonly the composite production needs to perform in a sequential operation and at least at one point of the production cycle where the material properties are defined. 2.
So evaluating the proposed design, from a manufacturing point of view, is not an easy task and involves several interrelated factors such as raw material properties, shape and size of the component, as well as the capabilities and limitations of the selected manufacturing processes.
Wu, “Effects of cure cycles on void content and mechanical properties of composite laminates,” Composite Structures, vol. 73, 2006, pp. 303-309

It was demonstrated that biochar was part of the black carbon continuum with variable properties due to the net result of production (e.g., feedstock and pyrolysis conditions) and postproduction factors (storage or activation).
But carbon black had inert surface properties which gave poor dispersion performance.
Therefore, compared with the HDPE/CB, the mechanical properties and ultraviolet (UV) resistance of HDPE/HDPE-g-CB were significantly improved, positively influencing the expected life span of pipelines.
[37] He XL, Cai YQ, Wang QT, Qi X, Guo R, Tang Y, Liu BP., Improvement of Mechanical Properties and Ultraviolet Resistance of Polyethylene Pipe Materials Using High Density Polyethylene Matrix Grafted Carbon Black, J.
Mustafi., Effect of Modified Carbon Black on the Properties of Natural Rubber Vulcanizate, J.

Since the grinding is mainly selected as finishing method that determines the functional properties of a given area, knowledge of the surface quality and influencing factors has critical value.
In one-dimensional tests of significance came out statistically significant effect of all studied factors including their mutual interaction (p = 0.00001).
The Figure 2 presents a designed regression model of influencing factors on the surface roughness Ra after grinding.
In univariate tests of significance came a statistically significant effect of all of followed factors together with their interactions (p = 0.00000), as shown in Figure 5.
For the TPU work material were identified delectations affecting both the dimensional accuracy and also the surface quality.

Ideally, when the erecting system is working, load borne of the two cylinders is the same, both sides of the circuit parameters is symmetrical to ensure the mechanical synchronization.
Research on synchronization control of shunt valve results and actual operation of the system show that, because of the size error of the synchronization valve, rate of flow and other factors, synchronization control precision is difficult to ensure, the ability to adapt to the system parameters is poor, closed-loop synchronization control must be used when high precision synchronization control is required [1].
When the system is running, the piston rod maybe working out of sync because of friction, load and other factors, then the flow rate of the two hydraulic cylinders can be adjusted to make the piston rod synchronized according to output signal of synchronization controller.
Performance indicators was established according to the geometric properties of the error of control process by Marisik and Strejc, adaptive PSD (proportion, sum, derivative) control law without identification was proposed, the parameters of the object does not need identify in this method, an adaptive closed loop control system can be formed.
Among them, symbolic function can be used instead of to simplify the calculation of b0, because it is a common factor when the weighting factor is changing, the most important is its positive and negative symbols, changing direction of weighting factor is determined by positive or negative of the symbols, values of the weights only affect the size of the rate of change, and inaccurate calculation formed by the result can be compensated by adjusting learning rate.