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Table 2 Results of orthogonal experiments Trial number Factors Content of ceria in the product (wt %) hydrochloric acid concentration A (mol/L) Reaction time B (min) Reaction temperature C (ºC) 1 1 30 25 56.47 2 1 45 35 56.70 3 1 60 45 56.97 4 2 30 35 64.11 5 2 45 45 70.77 6 2 60 25 65.30 7 3 30 45 72.40 8 3 45 25 68.03 9 3 60 35 72.51 K1 170.14 192.99 189.81 K2 200.18 195.51 193.32 K3 212.94 194.79 200.13 K1/3 56.71 64.33 63.27 K2/3 66.73 65.17 64.44 K3/3 70.98 64.93 66.71 R 14.27 0.84 3.44 In the leaching process, the content of ceria was affected by many factors, such as solid-liquid ratio, concentration of hydrochloric acid (A), time (B) and temperature (C) of leaching etc.
When compared with the FA and Fα, FA was higher than Fα(9), indicating that the concentration of HCl was the only obvious factor affecting the content of ceria.
In all, the sequence of these factors was indicated as follows: concentration of HCl > leaching temperature > leaching time.
Li, Effects of the synthesis methods on the physicochemical properties of cerium dioxide powder, Colloids and Surfaces A: Physicochemical and Engineering Aspects. 301(2007) 153-157
Qian, Solvothermal synthesis, electrochemical and photocatalytic properties of monodispersed CeO2 nanocubes, Mater Chem Phys. 115(2009) 835-840

Due to its good mechanical properties, PLA is a potential substitute to some usual polymers such as PET.
Thermomechanical history experienced by the polymer during processing drastically affects its relative crystallinity.
Then, from an Arrhenius plot of the shift factor aT, the activation energy was found to be 110 kJ/mol, in accordance with the literature from Gu et al. [2].
Furthermore, the critical value of the mechanical work needed for the transition depends on the Molecular Weight Distribution (MWD) of the polymer, Mykhaylyk et al. [10].
Indeed, the morphology governs not only the geometry but also the gradient of rigidity and consequently the mechanical properties of the final product.

And we now urgently need to do is to regulate the emissions of waste concrete and deepen the regeneration of abandoned properties of concrete, early introduction suited to China's production and use of recycled concrete specifications for the next construction cycle of recycled concrete and lay a solid theoretical foundation.
These factors ultimately lead to some performances of recycled aggregate is worse than natural aggregate.
Research shows that physical reinforcement method can greatly improve the frost resistance of recycled concrete, carbonation resistance and anti-penetration properties.
When the original concrete is waste, those differences of waste concrete in performance will lead to different performances of recycled aggregates, and such different performances of recycled aggregates will lead the physical or mechanical properties of recycled concrete to be different.
Little difference exit in between mixing matrix strength of recycled aggregate concrete and native concrete The affect which come from the age of the original concrete on the performance of recycled aggregates is weak. 28d and 111d three instars native concrete were broken each other by Changsheng Guo, etc. [9], and then different blocks of concrete for test had been made with recycled aggregates which came from those broken materials, they had made many test on these blocks to study the influences which are generated by the age of original concrete on the mechanical properties of recycled concrete.

The morphologies, structure, densification behavior, mechanical and electrical properties of the sintered ceramic targets with different doping concentrations were investigated.
And, some new preparations, properties and influencing factors of NZO sputtering target materials were discussed, but the related research needs to be further and deeper.
The morphologies, structure, densification behavior, mechanical and electrical properties of the sintered ceramic targets with different doping concentrations were investigated.
Mechanical properties of NZO ceramic target.
Effect of Doping Concentrations on Properties of Ga-Ti Co-Doped ZnO (GTZO) Targets[C]// 2016:498-504

Resistance to bending of NiTi root canal instruments depended on their geometrical shapes and metallurgical properties, but the cross-sectional configuration can be seen as an important parameter affecting this property.
Cross-sectional geometry, in particular, has been identified as an important design feature affecting torsion and bending properties [17, 18, 7, 4, 19, 20].
Thus, we verify that bending moments at 45 showed a good linear relationship with D3, but the cross-sectional configuration can be seen as a fundamental parameter affecting this property in all kinds of instruments.
The cross-sectional configuration seems to be the predominant factor affecting the bending properties of rotary K3, PTU and ES instruments.
However, the cross-sectional configuration was found to be the predominant parameter affecting this property in the instruments analyzed.

These characteristics in machining of MMCs tend to adversely affect the machined surface quality/integrity.
The driving force behind the development of these composites is their ability to produce tailored mechanical and physical properties for specific applications.
Their properties such as thermal resistance, specific strength, wear resistance, etc. can be altered by changing their fabrication techniques, volume and size of reinforcement in them.
In hot machining, an optimum machining temperature is dependent on the physical properties of work material [13].
[9] Krabacher, E.J. and Merchant, M.E., “Basic Factors in Hot-Machining of Metals”, Transactions ASME, Vol.73, 1951, pp761–776

It is shown that the determining factor in the process of wear nucleation under dynamic cyclic loading has a structural factor.
Depending on the structure and properties of the material, as well as on the nature of the loads, the critical fatigue defect develops in the form of cracks, pores or microcraters.
Then the mechanical component of the number of a droplet impacts is expressed as N3 = f (rkr /rm).
For hardened metallic materials, for example, for strongly deformed or hardened alloys (including 20Cr13 with martensitic structure), in expression (1) the first three factors turn into one.
The quantities st and DF are material properties and, in general, they are expressed through its basic physical characteristics m and b: st = m × b / l ; DF = a1× m × b3 . (3) The coefficient a1 in expressions (3) classifies obstacles by their strength [6].

These factors influence flow time, a critical process metric defined as the time required for the resin to completely wet and fill the interstitial space between the die and the substrate [11].
This simulation approach allows for detailed analysis of how underfill material properties such as viscosity, surface tension, and curing behaviour affect flow profiles and encapsulation completeness.
The Table 1 below shows the different nanoparticles being considered and their properties.
Table showing the nanoparticles and their properties.
Furthermore, a Random Forest regression model confirmed that nanoparticle type and weight percentage are dominant factors in determining flow efficiency.

Methanol to oil (M:O) molar ratio, catalyst loading, and reaction were main factors affecting on the process and were investigated using central composite design (CCD) of experiment.
For conventional esterification, the reaction can be improved by mechanical stirring.
According to Al-Sarkari et al. [2], mechanical stirring could result in non-uniform mass transfer due to increased viscosity of the oil phase affects the dispersibility of methanol molecules towards free fatty acids.
Boffito et al. [5] Comparison of esterification of tobacco and canola oil using mechanical stirring and ultrasound assisted reaction.
Its properties are listed in Table 3.

Table 2 Test arrangement Specimen number C-1~C-6 C-0 C-25~C-85 Mechanical test Measure the mechanical property No Load to 25%, 40%, 55%, 70% or 85% of the compressive strength, respectively Temperature response test No Yes Yes Moisture transport test No Yes Yes Temperature Response Tests.
Fardis, Physical and chemical characteristics affecting the durability of concrete, ACI Mater.
Harmathy, Thermal properties of concrete at elevated temperature, J.
Allen, Thermal properties of selected masonry unit concretes, ACI J.
Khan, Factors affecting the thermal properties of concrete and applicability of its prediction models, Build.