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.%) on the microstructure and mechanical properties of Nb-12Si-22Ti alloys were studied.
The relationship between the microstructure and the mechanical properties was discussed.
Microstructure and phase structure of alloys are the important factors to affect the room temperature ductility of Nb-Si system alloys.
In this work, we try to improve the microstructure and the mechanical properties of Nb-Si alloys by modification treatment.
Fig. 3 compared the mechanical properties of these alloys.

Flexible cable control system is the main type of mechanical flight control system, in which movement can only be transmitted by cable in tension, the stiffness of cable control system is affected mainly by predetermined preload(PP), however the excessive PP would increase friction between cable and pulley which leads pilot an unfavorable maneuver.
The mechanical control systems are applied to aviation aircraft for a long history though the recent trend toward increased usage of Fly-By-Wire systems, Cable flight control system is a type of the conventional mechanical control systems, it provides a reliable and economical way of controlling aircraft, so remains a popular option for most general aviation aircraft.
Their properties however induce many special considerations which have to be taken in account in the overall design of a flight control system.
But this paper didn’t concern the stiffness effects about pulleys and cable deflection, he give an installation stiffness factor possibly varies from 0.55 to 0.95 to deal with these effects.
The follow important factors of the calbe control system will be studyed: • The complex wire rope braided construction should be taken into account in analyzing the effects of linkage pulley, the inter-reaction among each wire would be different from the author’s assumption of symmetrical cable; • Friction between cable and pulley is also a complex issue, further study should be done about the friction theoretical calculation not only from test data; •There should be a effective method to verify the author’s calculation results, such as construct a long cable loop.

Firstly, imbalance due to the motor's position affecting the center of mass can lead to undesired slipping during robot movement[6].
On inclined or uneven surfaces, slipping caused by imbalance can cause the robot to deviate from a straight path, affecting its ability to follow a desired trajectory.
Furthermore, the utilization of 3D printing technology enabled rapid prototyping and customization of components, facilitating the implementation of design iterations and fine-tuning of mechanical properties.
It can exhibit relatively slow response times compared to other sensors, and its accuracy can be affected by factors such as temperature variations and external interference.
However, it's essential to consider potential factors that may influence these results, such as surface roughness, traction, and adhesion properties.

The influences of matrix aggregates particle size grades on the properties of grouting materials for blast furnace lining crack repair were mainly discussed.
Cracks can also happen in the tap hole area due to the mechanical impacts of mud gun and driller.
The matrix aggregates particle size grades distribution is one of the key factors that affect the properties of grouting materials.
Thermal Properties Test Results and Analysis.
Table 6 Samples’ Apparent Properties with Different Matrix Aggregates Particle Sizes after Fired No.

One of the parameters affecting bitumen stability is Gaestel colloidal index (CI) [25].
Therefore, five factors were included in the regression analysis.
It indicated that the factors are suitable for analysis.
However, the mechanical properties of the mixture specimen with Fo show inferiority.
Effect of rheology on the bitumen foamability and mechanical properties of foam bitumen stabilised mixes.

In this paper, the effect caused by other factors of output will not say more than needed, only the impact of indexing plate angular velocity and angular acceleration is analyzed.
In summary, the angular velocity mutation and angular acceleration of indexing plate rotary increase with the decrease of pitch radius, which will affect the good performance of the mechanism, increase the impact load of the mechanism, damage stability of the system, and affect the accuracy and efficiency of the mechanism, etc.
That means it will affect the positioning accuracy when setting a large rang of indexing plate.
The dynamic analysis of globular indexing cam mechanism [J], Mechanical transmission. 1999
[4]Zou Huijun, Yin Hongliang, The design and application of intermittent motion mechanism [M],Beijing: Mechanical industry press, 2008.10

As the above-mentioned literatures show, the important factors often being researched include laser parameters such as laser power, plus frequency, average energy density scanning speed, and properties of the substrate.
Table 3 Two factors significance testing (single direction raster scanning) Tests of Significance F-test Laser current factor(P-val.) line spacing factor (P-val.)
Table 4 Two factors significance testing (cross direction raster scanning) Tests of Significance F-test Laser current factor(P-val.) line spacing factor (P-val.)
Many factors affect symbol contrast.
These factors often interact on each other.

It is difficult to optimize the slips because of complicated structure and many geometric parameters affecting the mechanical property of the slips.
There are many parameters effecting the mechanical property of the slip while doing optimization design.
In order to simplify the problem, we give preference to those factors effecting the mechanical property notably.
There are four factors in the design and each factor contains four levels.
The distribution of factors and levels are shown in table 1.

The surface roughness of ADI workpieces were tested after the finish turning at changed cutting parameters, and the influencing factors of surface quality were analysed.
Introduction Austempered Ductile Iron (ADI), which can obtain excellent synthesis mechanical properties such as high hardness, high tenacity, high flexural strength and contact fatigue strength and good abrasion performance after the application of isothermal quenching, is concerned to be high-technology material in 21st century[1,2].
The Ductile Iron used in this experiment was prepared in the form of cylindrical barrel with Φ35mm×2000mm, and the chemical composition (mass percent) of DI and the mechanical properties are given in Table 1 and Table 2.
Through further microstructure observation of ADI materials, fundamental changes were observed which made the change of ADI materials’ mechanical properties after the isothermal quenching procedure.
As the change of quenching temperature and time, the carbon content and the retained austenite changed reflected in the mechanical properties especially hardness of workpieces changed.

It concluded that axial load ratio, load angle, and ratio of the spacing of stirrups and longitudinal reinforcement’s diameter (s/d) are most important factors.
So as to improve its mechanical properties, the section steel is added in the shaped RC columns.
The numerical method was adopted in this article to compile a computer program of full-range nonlinear analysis which can be used for the further research on the mechanical properties of steel reinforced concrete L-shaped columns (SRCLSC) subjected to biaxial eccentric compression.
Factors affecting sectional curvature ductility.
Therefore, the load angle α , axial compression ratio n ,stirrup spacing and the diameter of longitudinal reinforcement ratio s/d are all the major factors affecting the SRCLSC subjected to biaxial eccentric compression, meanwhile ,the curvature ductility coefficient and α, n, s/d meet certain numerical relations.