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Due to inherent properties of the chemical used as a decontaminant agent, it possibly could affect the airliner metallic materials during or after the decontamination process, particularly copper.
Introduction The copper dissolution rate into hydrogen peroxide was determined after an initial study of the impact of decontamination on the properties of aircraft structural materials, in which some leaching of copper into hydrogen peroxide during the dip testing was observed.
Several investigators have investigated the dissolution of pure copper and its properties in several acidic solutions such as sulfuric acid [1,2], hydrochloric acid [3,4], and ethylene diamine tetra acetic acid/ethylene diamine (EDTA/EDA) base solutions [5].
To reduce the variability in the temperature effect, the subsequent experiments were carried out without mechanical stirring, except at the beginning of reaction for particle suspension homogenization purpose.
However, as has been pointed out in the previous section, the value calculated by using this method cannot be confirmed because other factors, such as the diffusion layer thickness and kinematic viscosity, which would affect the diffusivity, was not included in the calculation.

Fig. 5 Finite element model Fig. 6 Solid element model of the tube Fig. 7 Shell element model of the tube At high temperatures, the material properties are sensitive to strain rate.
The material properties adopted in the simulation was derived from the material database of DEFORM.
Three factors may cause a deviation between the simulation and experiment results.
First, the material properties derived from the material database of DEFORM probably differ from material properties of the tube used in the experiment.
Temperature change affects the material properties.

Vibration analysis involves the study of dynamic responses, namely the frequency response and resonance frequency, of a structure induced by mechanical excitation [21, 23].
This allowed more tests to be conducted and also ensures repeatability as opposed to using cadaveric pelvises which will vary in material properties, size, and may be limited in availability.
Therefore changes in surface displacement as a result of a mechanical excitation in a specimen can be detected so long as the PZT is bonded securely onto the specimen.
Laugier, Computational evaluation of the compositional factors in fracture healing affecting ultrasound axial transmission measurements, Ultrasound Med Biol, 36 (2010) 1314-26 [16] C.F.
Cunningham, Monitoring the mechanical properties of healing bone, Clin Orthop Relat Res, 467 (2009) 1964-71 [24] G.

PP is a thermoplastic polymer widely used in various industries due to its excellent physical and mechanical properties, low cost, and ease of processing.
PC and PP can be brittle or ductile depending on several factors such as surrounding temperature, crystallization, compounding, and processing features [36].
B., Marchelli M., Peila D. (2020), Reliability analysis and partial safety factors approach for rockfall protection structures, Engineering Structures, 213: 110553
[26] Zhang W., Xu Y. (2019), 3 - Impact Simulation of Polycarbonates in Aeronautical and Aerospace Applications, Editor(s): Zhang W., Xu Y., Mechanical Properties of Polycarbonate, Elsevier, Pages 79-112, [27] R.
[30] Polypropylene: Polymerization and Characterization of Mechanical and Thermal Properties. (2020). 

It is a main research work to reduce and void vibration for ensuring the machine tool will not generate self-oscillation when it works in the range of rated power. many study shows that good dynamic characteristic of parallel machine tool be more needed and more important with gradually improvement of machining property[2], so dynamic characteristic analysis is more important.
The experience and repeated measured are main means of traditional structure design while considering dynamic factor, it greatly slowdown the design speed and the design quality also hard to be optimization[3].
So the transfer function and its denominator are all same in spite of any measured point in mechanical system.
According Eq.(8), the damping ration and stiffness of system are: From above result, we can get that, the test points cannot affect the whole dynamic characteristic, which is accord with theory analysis.
References [1] Xu benwen, Jiao Qunying, Mechanical Vibration and Modal Analysis Foundation, Beijing:China Machine press, 1998 [2] Jinwook Kim, Park, F C Mumsang Kim.

Vacuum degree of The vacuum chamber is a direct influence factor on the adsorption properties of the absorption hole airflow, which required the maximum can be calculated though the following formula[12]
(5) Where, Hcmax is vacuum maximum value of the vacuum chamber, kPa; d is suction hole diameter of the seed plate, cm; C is distance between the center of seed gravity and the suction seed plate, cm; m is one seed quality, kg; v is line speed at the center of the suction hole on the row seed plate, m/s; r is turning radius at the suction hole of the row seed plate, m; g is acceleration due to gravity, m/s2; λ is seed frictional resistance combined factor, λ=(6 to 10) tan θ, θ is natural angle of repose of the seed; K1 is coefficient of reliability of the absorption seed, taking 1.8 to 2.0, thousand grain weight of the seed are small and shape spherical, taking a small value; K2 is outsidecondition factor, taking 1.6 to 2.0, it take greater when the seed grain weight is large.
Because the distribution location of the suction holes centers in the diameter direction were different, the airflow field of the vacuum chamber correspondly changed, and the suction seed performance was affected.
Fig.4 Vacuum chamber export flow velocity of the suction hole different distribution location Seed metering performance testing and analysis Airflow field finite element analysis of the air-suction seed metering device of no-tillage planter ignored the effects of vibration on the flow field, for the vibration amplitude of the device is smaller and the vibration is only on the overall airflow field and is not its internal disturbance, exciting and traditional Metering performance test of air-suction metering device have been done to further understand the static and dynamic airflow field`s impact on seed adsorption properties.
[12] Chinese Agricultural Machinery Institute, in: Practical Mechanical Design Handbook (below). edtied by Mechanical Industry Press, China, (1998)

In general, the position, extension, and complications of the dislocation are affected by the position of the blow.
This occurrence is often generated by several factors, namely [28]: (1) Uneven lattice distortion, which can be caused by nanocrystal surface tension, crystalline morphology, and interstitial impurities. (2) Dislocations, (3) Border domains between phases, which are formed at the time of material structure preparation that undergoes a transformational disturbance.
Ma, “Surface properties of Mg-Gd-Zn-Zr alloy modified by Sn ion implantation,” Mater.
Vida et al., “Directionally solidified dilute Zn-Mg alloys: Correlation between microstructure and corrosion properties,” J.
Brnić, “Low cycle fatigue and mechanical properties of magnesium alloy Mg–6Zn–1Y–0.6Ce–0.6Zr at different temperatures,” Mater.

The key factor is lied support system of transfer floor construction, pouring plan of concrete, maintain concrete at later stage, temperature control technique of concrete [2,3] in high-rise building transfer layers construction.
As the main stress condition of beam type transfer floor-transfer big beam, the loading-carrying capability forms & size are affected by the up construction form, compared rigidity of transfer beam up& low layer, position of transfer beam etc.
Under these factors, it will express different loading-carrying capability function under horizontal load which bring a transfer layer construction.
Greensmith, "Parameter Analysis for Mechanical Properties of Steel-Reinforced Concrete Transfer Girders with Inner Steel Truss," Proceedings of the IEEE World Congress on Evolutionary Computation 2008 (CEC08), in print
Burke, "Experimental study on the mechanical property of steel reinforced concrete short columns of t-shaped cross-section", SAE Paper, No.92-04-47

Discontinuities in material properties and the features of the component’s geometry are known to be the major promoter of the adverse effects in stress state in components [1].
Total Length [m] Diameter [m] Thickness [m] Elbow Radius [m] Internal External 52.10 0.44 0.54 0.05 0.50 3.2 Material Properties The elastic and thermo-mechanical properties of the X20 steel pipe [19, 31] and pyrogel insulation jacket [30] are depicted in Table 3 and 4, respectively while the X20 modified hyperbolic sine creep material constants obtained through curve fitting at 550 ℃ [32] is shown in Table 5.
Table 3 X20 steel material properties [33].
Gedeon, "Factors affecting stress relaxation and creep," Tech.
Adesina, "Thermo-mechanical simulation of steam turbine blade with spark plasma sintering fabricated Inconel 738LC superalloy properties," vol. 655, p. 012046: IOP Publishing

The purpose of this article is to present the ergonomic, technical and aesthetic factors, considering the physical, psychological and social needs of this target group, for the development of clothing products.
All this contextualization draws attention to the applicability of ergonomics in the development of clothing and aims to present its ergonomic, technical and aesthetic factors, considering the physical, psychological and social needs of the elderly, the target group of this research.
In this matter of aesthetics, in addition to technical factors, appearance is a factor that affects the ergonomic enhancement of the product, given that, when the product fits the modified body, it contributes to improving the appearance of the product.
Therefore, the main raw material was defined considering the climatic conditions of each region, the application of the products and, mainly, the properties that have an impact on sensory and thermophysiological comfort, namely: smooth touch, low tendency to cause allergies, good absorption capacity and good breathability.
Almost 100% approval was obtained from the users in Guimarães regarding the comfort requirements related to the product ergonomics and factors associated with the ability in terms of body movements.