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The article calculated equivalent thermal resistance of radiator, analyzed main factors affecting thermal efficiency.
In this article, we calculated equivalent thermal resistance of radiator, which was used to analyze main factors affecting thermal efficiency.
Temperature changes would affect opening and closing of components, thus reduce performance of inverter.
Table.1 shows material properties of cooling air and fins.
A laminar flow model of 3D, steady state, incompressible, constant property was used in simulation.

Whether the construction machinery remanufacturing project can be carried out smoothly and how effective it is, depends largely on the reasonableness of the equipment design, the structure, material properties, and other characteristics.
The green modular design methods that oriented construction machinery is that the combination of green design and modular design is flexibility applied to the design stage of the remanufacturing to make the design meeting the remanufacturing indicators and requirements at the same time, such as the functional properties of the equipment, the transportability, removable, easy to repair and upgrade, easy assembly and environmental attributes.
Green modular design that oriented remanufacturing engineering is an integrated design process that requires analyzing comprehensively of a variety of factors affecting the green degree and the module degree such as economic, environmental, materials and assembly, considering environment harmonization of the equipment, easy disassembly, easy classification, easy to repair and upgrade, easy assemblability and easy transportability.
There are five factors affecting the degree of the equipment modularity are: (1) structure interaction; (2) force interaction; (3) signal interactive; (4) energy interaction; (5) material interaction.
Journal of Mechanical Engineering,2013.39(11):149-154

There are several heat affected zones near the weld pool, which has different properties and microstructure due to different cooling rates and heat flux orientation during solidification.
These can be the key factors for weld joint material structure and quality [2].
Melt flow in weld pool during solidification has large influence on the metal structure formation in the joint and subsequently its mechanical and other properties [10].
It is reported that external magnetic field may improve welding joint quality and mechanical properties by altering weld pool melt flow.
Li, Mechanical Properties and Microstructure Transformation Behaviour for Welded Joints in Ship Plate Steel with High-Heat Input Welding, Journal of Material Engineering and Perform. 79(2021)

The section area and length of the flow path were the main factor affecting on the flow exponent and flow coefficient of drip irrigation emitter, and other ones less.
Table 4 shows the partial phase relation between , and other factors.
Table 4 shows the path analysis of influential effect of every factor to emitter’s hydraulic performance. we can also see that >>> and >>>in factors directly affect , and is big due to promoting effect of A; it’s the same for to show >>> and >>>.
(2) The path area and length of fractal path can affect flow exponent and flow coefficient directly or indirectly and are the primary factors while others the minor
(3) In respect of direct effect of path analysis, the effect of path area A to flow coefficient Kd is the most and that to L is next to a significant level; A is the main factor affecting flow exponent x to significant level while other factors are less important

It results on the improvement of the handling and mechanical properties of set AC.
When the index of handling property was plotted to mechanical strength, at the same handling index the mechanical strength of hydrophilicity improvement after O3 treatment was higher than untreated powder [14].
Many factors govern the cell response such as composition and surface morphology [17-21].
Less water needed for handling property results in improvement of mechanical property of set AC.
This result might provide new insights into the development of a new method to acquire improvement of handling property of AC with a biocompatible method that would affect the high mechanical properties and cell behavior of the AC without sacrificing the biocompatibility of AC.

These experiments will allow evaluating of the dependency of the fatigue notch factors on rivet hole expansion.
The fatigue properties of riveted joints are the resultant effect of an integrated impact of many factors related to not only the external load, but also structural and technological parameters of the joint.
The mechanical properties of the 2024-T3 sheet material were measured and average results of six tensile tests parallel/perpendicular to rolling direction were: S0.2= 329/302 MPa, SU = 459/445 MPa, elongation to failure 19%/21%, Young modulus E=68.2/68.5 GPa, Poisson ratio n=0.33/0.34.
Design, Analysis and Properties, Vol. 189, Series: Solid Mechanics and Its Applications.
Pilkey, Peterson's Stress Concentration Factors, John Wiley & Sons, Hobeken, 2007.

Moreover, because the mechanical properties of flexible sound absorption materials are poor, they can’t be used as structural material directly.
They need other rigid materials to strengthen its mechanical properties in the using process.[7-9] As a metal based porous material, foam metal sound absorption material has better mechanical properties and can be used directly as structural materials.
Main factors affecting the sound absorption, mainly for flow resistance, porosity and density, thickness and cavity structure factor. 3.1 Flow resistance Porous material should have a reasonable flow resistance.
In order to make the theory close to reality, a coefficient is called structure factors.
[7].Yu Haijun,Yao Guangchun,Cheng Yan, et al.Influence factors of sound absorption properties of closed-cell aluminum foam[J]., The Chinese Journal of Nonferrous Metals,2008,18(08):1487-1491

Results and Discussion Discussion on influencing factors of synthetic reaction The effects of various factors on the experimental results were investigated by orthogonal experiment.
The greater the extreme difference R, the greater the influence of its factors on the experiment.
Therefore, the ratio of reactants is the main factor affecting the experimental results, while the reaction time is not.
It shows that the main factors affecting the experimental yield are reactant ratio and reaction temperature.
[3] Liang, B.; Wang, G.; Hong, X.; Long, J.; Tsubaki, N., Synthesis and properties of a new halogen-free flame-retardant epoxy resin curing agent.

Introduction With the rapid development of high-grade highways in China, it becomes increasingly important and urgent to study the engineering properties about special soil.
These factors would affect the compressibility of the sulfuric acid saline soil and make it has its own characteristics.
By analyzing of the regression equation (1) and the significant factors, namely, the results from F - test show that the regression equation is significant at α = 0.01 level and the selection of a mathematical model is matched with the actual situation.
The level of the factors is seen in Table 1 by regression orthogonal design requirements.
Table1 Level of the Factors Factor Moisture content（％） Salt content（％） Initial dry density（g/cm3） temperature（℃） mark X1 X2 X3 X4 Reference level（0） 15 1.65 1.45 5 Spacing interval（Δ） 7.07 0.95 0.32 14.14 Upper level（＋） 22.07 2.60 1.77 19.14 Lower level（－） 7.93 0.7 1.13 -9.14 Upper asterisk arm（＋1.414） 25 3 1.9 25 Lower asterisk arm（－1.414） 5 0.3 1.0 -15 Each of these factors (variables) is divided by five levels and need 625 samples.

The gears of a gear box were modeled and analyzed through Romax, and the effects of pressure angle on their lubrication properties were studied.
The lubrication condition of the tooth surface was an important factor that affected the performance and the bearing capacity of the gear transmission.
The safety factor increased 49% when the pressure angle increased from 20° to 25°.
The pressure viscosity property was considered by the Dawson Higginson formula, and the viscosity pressure coefficient index was 0.6 in the formula.
And the rolling velocity mainly affected the distribution of oil film thickness.