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Consider the airworthiness of civil aviation, the airborne circumstances and the medical rescue requirements during the casualty evacuation, stretcher bracket not only need to have the good structure design and light weight, and also have the good mechanical properties [3,4].
The design of a stretcher bracket is affected by a wide range of requirements as these are prescribed bracketing height, placement of three stretchers and patients, intensity and stiffness requirements and of course costs and appearance, product life-time and maintenance consideration.
According to the references [11,12], the factor of unidirectional limit load and the calculated results of components quantity of attachment structure are shown in Table 3.  
As mentioned earlier, the limit load factor and the unidirectional limit load cases are shown in Table 4.
All the analyses show that the maximum stress is less than permissible stress, and that the stress level and the safety factor can also meet the requirement of strength specification.

From the author's systematical experiments [5,6,7,8], it is found that the theory having only viscosity function like a so-called over-stress constitutive model [2,3], can not explain a transient phenomena in flow stress which are observed at a sudden change in strain rate, and that the viscosity function derived from flow stress properties does not necessarily coincide with the viscosity function obtained from relaxation properties.
In this report, both cyclic loading dependence and temperature dependence of the two factors: viscosity and aging properties are investigated experimentally and systematically over a temperature range of -35͠ to 200͠.
Basic concept of the proposed two factors constitutive model Viscosity of materials has been generally connected with strain rate and work hardening.
Results and formulations of viscosity and aging properties Effect of strain rate on stress-strain curve around yielding.
On the basis of the two-factor constitutive concept, g curve should be replaced by f curve, because g level is affected by aging depending on strain rate.

As a result, corrosion damage has broad economic consequences especially when factoring the financial implications [3, 4].
The physical and mechanical properties of Al can be modified precisely to the specific demands of various applications.
Gorman, 7 - Corrosion problems affecting steam generator tubes in commercial water-cooled nuclear power plants, Steam Generators for Nuclear Power Plants, Elsevier Ltd., Amsterdam, 2017, pp. 155-181
Loto, Anti-corrosion performance of the synergistic properties of benzenecarbonitrile and 5-bromovanillin on 1018 carbon steel in HCl environment, Sci.
Tobilola, Corrosion inhibition properties of the synergistic effect of 4-hydroxy-3-methoxybenzaldehyde and hexadecyltrimethylammoniumbromide on mild steel in dilute acid solutions, J. 

The performance of electrodes in the microplastic removal process using the electrocoagulation method is influenced by several factors, including electrolysis time, voltage intensity, electrolyte concentration and others.
The presence of electrons in the solution can affect the rate of electrochemical reactions.
The electrochemical equilibrium that occurs is the balance between the microplastic removal rate and factors that hinder microplastic removal efficiency, such as excessive sediment formation on the electrode, high foam production, and the possibility of microplastic deflocculation.
Xing, “Dynamic membrane for micro-particle removal in wastewater treatment: Performance and influencing factors,” Sci.
Staszak, “Study of surface properties of aqueous solutions of sodium dodecyl sulfate in the presence of hydrochloric acid and heavy metal ions,” J.

From the mechanical point of view, this article is focused on the use of mechanical parameters of the liquid surface tension coefficient and viscosity to monitoring the process of detection of milk.
Required tension is depent by the liquid surface tension, the inner ring diameter and liquid materials, purity and other factors.
Measurement of Viscosity Viscosity The inherent viscosity is one of the properties of liquid, Whether stationary or movement of liquid has viscosity.
Many factors affect the size of η.

The properties of the experimental machines, grinding wheel and workpieces are presented in detail in Figure 2 and Table 1. 4 1 2 5 Figure 1.
Points Factors Ra (µm) No.
Points Factors Ra (µm) Y Concentration (%) X1 Flow rate (l/m) X2 Concentration (%) X1 Flow rate (l/m) X2 1 P6 2.0 1.0 0.598 8 P7 1.4 2.5 0.618 2 P8 2.0 4.0 0.590 9 P9 3.5 2.5 0.419 3 P3 5.6 2.5 0.518 10 P4 5.0 1.0 0.577 4 P2 5.0 4.0 0.476 11 P5 3.5 0.4 0.593 5 P9 3.5 2.5 0.418 12 P9 3.5 2.5 0.423 6 P1 3.5 4.6 0.517 13 P9 3.5 2.5 0.417 7 P9 3.5 2.5 0.414 Table 4.
Similarly, the flow rate also affects on the roughness Ra.
Rajhans, (2015) “Optimisation of heat generation in internal cylindrical grinding,” International Journal of Advances in Mechanical and Civil Engineering. 2 (4), 96-101

Numerical Simulation of Flow and Heat Transfer for Cooling Roller in Amorphous Spinning Process Yong-Kang LI, Yang YANG*, Yan-Ming SONG, Fei-Ran ZHANG School of Mechanical Engineering and Automation, Beihang University, Beijing, China buaalyk@qq.com, sym0823@163.com *Corresponding author Keywords: Amorphous, Cooling Roller, Flow, Heat Transfer, Numerical Simulation.
Introduction Amorphous alloy has more excellent physical, chemical and mechanical properties than conventional crystalline alloy, has a very broad application prospects on the electricity, aviation, aerospace and other fields.
In the actual production process a large number of high-temperature melt its heat is transferred to the cooling roll in a short time, resulting in surface temperature of the cooling roller has a sharp rise, cooling roller temperature rise can affect the amorphous quality and even completely crystallized phenomenon.
Thus, to achieve a high yield of amorphous materials and high productivity, accurately grasp the cooling roller temperature distribution and its influencing factors, measures be taken to keep cooling roller temperature constant within a certain range is very necessary [3].
Tab.1 Geometrical and process parameters Item of alloy value Roller radius, R (mm) Velocity of inlet cooling water, v/(m·s-1) Width of heat flow, b (mm) Width of copper roller, B (mm) Height of cooling roll, h (mm) Width of cooling roll, k (mm) Heat flux of cooling roll, q (W·m-2) 800 5 142 350 8 12 730000 Basic assumptions To facilitate the analysis of the main factors, the analysis of the process was simplified, proposed the following assumptions: 1.

Clearly the seismic vulnerability of a single building is influenced by many factors and by specific vulnerability conditions that cannot be individually evaluated.
Therefore the trend of the amplification factor should be determined so as to account for the site effect amplification.
The form collects the evaluation of all the structural parameters which may be vulnerability factors for the building in the event of an earthquake, e.g. the quality and organization of the structural system, regularity of configuration, type and rigidity of the floors, etc.
The experimental campaign aimed at the determination of the dynamic properties of the buildings pointed out that the period-height relationships provided by the NTC 2008 overestimate the experimantal periods found for the sample building database, evidencing the need to evaluate specific period-height equations for different urban environments when a reliable risk evaluation is required.
Viti, Variability in concrete mechanical properties as a source of in-plan irregularity for existing RC framed structures, Engineering Structures 59 (2014) 161-172

This solubility allows alloying with many of the elements to modify both the mechanical properties and the transformation properties of the system(21-22).
This study cannot imitate all factors in the oral cavity and had limitations such as temperature, quality and quantity of saliva, plaque, protein, physiological and chemical properties of food and liquids, and oral health conditions that affect the corrosion of Ni from the simulated orthodontic appliance.
Properties and Selection: Nonferrous Alloys and Special-Purpose Materials. 10th ed.
Mechanical properties of several NiTi alloy wires in three-point bending tests.
Structure and properties of TiN coatings.

The stress concentration due to the materials with different mechanical properties makes the most damage occurred in the component interface.
Therefore, the crack propagation characteristics of the rubber are main factors of its strength.
Rivlin and Thomas [1,2] pointed out that the fatigue crack growth rate and tearing energy relations are material properties, independent of the load and specimen shape.
In order to affect the radial load and post-processing, the selection of the grid，structure 1 / 2, along the radial axis direction of symmetry, as shown in Fig.1, namely, the x-axis.