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Table 1 Different catalysts affect high-efficiency modified alkyd resins properties catalyst Reaction temperature Reaction time Acid value mobility（%） NaOH 220 4 24 5 KOH 220 4 22.8 3 CaO 220 4 8.8 1.5 Ni(OH)2 220 3.5 6.3 1.3 Table 1 shows that CaO, Ni(OH)2 for catalyst reaction has good catalytic activity.
Table 2 Temperature of esterification affect modified alkyd resins properties Reaction temperature Acid value facade Anchoring strength chroma value 200 16.8 Pale yellow 3 4 210 13.6 yellowtransparent 2 4 220 6.3 ambertransparent 1 8 230 5.8 amber translucent 1 10 240 5.4 amber translucent 1 12 From the Table 2, the product acid value drops higher with reaction temperature increasing, adhesion strength, at the same time they have increased the enhancement of product of chromaticity.
Oil degrees the proportion of fatty acid and polyester said the size of the value is one of the key factors of high-efficiency modified alkyd resin efficiency.
The degree of oil is longer, resin contained more, et cetera did better properties, but at the same time because resin molecules in relative reaction functional groups, surface long reduce tacky.
A combination of factors, finally choosing 55% oil degrees preparation non-drying alkyd resin, the effect is good.

The performance of automobile drive axle housing structure affects whether the automobile design is successful or not.
So the performance of automobile drive axle housing structure affects whether the automobile design is successful or not.
When builting the drive axle housing geometric model, the axle housing structure has been simplified based on it’s structure and operating characteristics, while maintaining its mechanical properties [2]: (1)In order to simplify modeling and extract middle section in the process of building finite element model and mesh generation based on shell element, the fillet angles of the drive axle housing is simplified to the right one
The number of mesh will affect the calculation accuracy and the scale.
So before determining the number of mesh , we should weigh these two factors.

Introduction The thermo-mechanical behavior of soils have been investigated for several decades [1-10].
Some buildings are located in the area affected by elevated temperature.
Simulation of Variation in Factor of Safety of Soil Slope with Temperature and Matric Suction Material Properties.
Lagurous, Effects of Temperature on Some Engineering Properties of Clay Soils, Proceedings of an International Conference on Effects of Temperature and Heat on Engineering Behavior of Soils, Highway Res.
Uchaipichat, Experimental Investigation and Constitutive Modelling of Thermo- Hydro-Mechanical Coupling in Unsaturated Soils, PhD Thesis, The University of New South Wales, NSW, AUSTRALIA, (2005)

Besides the mix design, fiber distribution is another crucial factor for strain-hardening properties of ECC [5-7].
Fiber wettability in the fresh ECC is regarded as the key factor to cause different fluid properties, Poor wettability can increase the entangled fiber clumps and hence greatly reduce deformability of the fresh ECC.
More efforts should be implemented to quantify the effect of a factor and comprehensive several factors on fiber distribution so as to maximize the reinforcement efficiency and thus optimize ECC performance and economize cost of product.
Improved fiber distribution and mechanical properties of engineered cementitious composites by adjusting the mixing sequence.
Influence of Aggregate Type and Size on Ductility and Mechanical Properties of Engineered Cementitious Composites[J].

Microstructure and properties of Mg/Al dissimilar joints by GTAW with Al-Si filler wire Hongyan Du a, Yajiang Li b and Juan Wang c key Lab of Liquid and Heredity of Materials, Ministry of Eduction, Shandong University, Jinan 250061, P.
To realize the reliable welding of magnesium alloy and aluminum alloy and give full play to the two kinds of different metal excellent properties have an important theoretical significance and practical application value.
In this paper, the microstructure and properties of the Mg/Al dissimilar metal welded-joint with filled Al-Si welding wire will be observed and analyzed.
Indications Si element is not added to improve the hardness of the main factors in fusion zone while GTAW welding, the welding wire and the base to reduce diffusion between the metal elements.
And the fusion zone of Mg side is a weak zone for mechanical performance of Joints.

However, the mechanical properties of GFRP vary significantly from one product to another.
Factors such as volumes and types of fiber and resin, fiber orientations and quality control during the manufacturing process, play a major role in the characteristics of the GFRP products.
The mechanical properties of GFRP are affected by the loading history and duration, temperature and moisture [4].
Their influence on various mechanical and physical properties GFRP needs to be understood.
Research with FRP materials exposed to aggressive conditions such as seawater for prolonged periods of time has demonstrated that they can experience a significant loss in mechanical properties. [6, 7].

Although the inclusion of fillers may improve several mechanical properties of polymers, some studies also reported that some important properties, such as the tensile strength, can be adversely affected by the inclusion of the nanofillers in the polymer[14].
Mechanical properties of Epoxy Nanocomposites Reinforced with Alumina Nanoparticles This section presents and compares the results from some authors with respect to some important mechanical properties of epoxy nanocomposites reinforced with alumina nanoparticles, namely: tensile properties, toughness and flexural properties.
As previously referred, factors such as the extent of adhesion of the filler to the epoxy resin, the dispersion state of the filler in the epoxy matrix, as well as the shape and size of the particulates fillers and also the quantity of added fillers have been found to affect notably the mechanical properties of the epoxy composite[20].
Tensile stress–strain curves; Dynamic mechanical properties.
Flexural strength; Flexural modulus; Dynamical mechanical properties.

Approximate temperature dependent material properties, including physical and mechanical properties, have been considered.
Consequently, Thermal expansion of the electrode displacement is regarded as a "direct quality factor" [3]。
materials For a simulation, in order to predict accurate results, all of the relevant mechanical (i.e., modulus, Poisson ratio, and stress-strain relationship), physical (i.e., density, thermal conductivity, expansion coefficient, and specific heat) and electrical (i.e., resistivity) properties for the steel sheets and copper electrode must be known.
Related material properties see ref. 12.
The stress and displacement from the mechanical analysis affect the surface contact resistivity used in the subsequent thermal-electrical analysis.

As a result, the mechanical property of the circuit drops in a large extent and it cannot run smoothly.
As a result, the mechanical reliability turns into the determining factor for the reliability of vacuum circuit breaker.
Among all these influencing factors, the main deformation is caused by the pre-tightening force of the bolts during installation.
This type of circuit breaker is a three-phase pillar type structural with compact dimensions, light weight and stable switching properties.
The material properties can be seen in table 1.

Usually these efforts involve active and passive methods such as extending the heat exchanger surface area or use such fluid those have high thermophysical properties, and can create turbulence.
They suggested that the base fluid with nanoparticles contribute to the positive affect on heat transport properties.
The thermophysical properties of nanoparticle and water were taken from literature [10] for 300 K temperature.
Density and viscosity have an indicative effect on Reynolds number among all these factors.
Ijam, Investigating the heat transfer performance and thermophysical properties of nanofluids in a circular micro-channel, Int.