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Optical properties were investigated by a UV/VIS spectrophotometer (Shamidzu SolidSpec-3700) in the range of 300–2500 nm.
Photocatalytic properties were investigated by a UV/VIS photospectrometer (Elmer Perkin LAMBDA 650).
Several steps were taken to improve the chemical, mechanical, and thermal properties of the developed enamel.
Optical, Photocatalytical and Structural Properties of TiO2-SiO2 Sol-Gel Coatings on High Content SiO2 Enamel Surface.
Effect of Different Dip-Coating Techniques on TiO2 Thin Film Properties.

D113 weakly acidic ion exchange resin is cationic one with macroporous structure and carboxylic acid base (—COOH), and it has high mechanical strength [4-5].
Hydrogen ions on the carboxyl can exchange with metal ions or other cationic in the solution, at the same time oxygen atoms on the carboxyl and metal ion coordinate directly, so the resin and a variety of metal ions can form relatively stable coordination compound under a certain acidity, the macromolecule ligand retains various excellent properties of low molecular one, in addition due to macromolecule effect the resin has the advantages of convenient separation, reusable and so on, which can greatly reduce the cost[6-8].
During the precursor preparation the effects of some factors such as Zn/Al molar ratio, pH value, temperature, etc. on the performance of resin static adsorption were studied.
This reason was that under high pH value, although in Zn/Al solution the precipitate wasn’t obtained, there were Zn/Al hydroxide, clathrate , and so on, which affected the resin adsorption on Zn/Al, and then affected the microstructure of product after calcination.
Preparation and Gas-sensing Properties of Zn-Al Metal Oxide[D].

The stress may will cause cracking or may also remain in the internal concrete to affect its ability.
Shrinkage is caused with temperature decreasing and temperature cracks occur easily under the effect of internal and external constraints, which will seriously affect the performance of concrete structure.
Whether research on the cracking mechanism of shrinkage of high performance concrete or on cracking mechanism of large volume concrete, it is the foundation of research to respectively quantify these two volume deformations of different properties[4].
The following will simply describe the two methods. 3.1.1 Separation method of maturity concept The descriptions for the characteristics of concrete at early ages often need to use the concept of maturity[7], which not only applicating in the prediction of strength and stiffness, and which is effective tools to set up a numerical model for researching the viscoelastic mechanical properties of the basic creep and stress relaxation.
However, because the autogenous shrinkage is related to many factors, if only to use the maturity as a basis for analysing autogenous shrinkage, the key of the problem is whether the precision is high enough when the maturity is taken as a practical tool.

The free energy of a fluctuation containing n atoms is given by: σ 3/2 nAhnGn +=∆ , (1) where h is the free energy per unit atom involved in the transformation of the solid solution into the new phase, σ is the precipitate/matrix interface energy and A is a geometrical factor depending on the precipitate shape.
However, it can be shown that this is not the case for small cluster and that the surface energy can be expressed as [6, 7]:         ++= ∞ 3 2 3 11 n C n B n σ σ σσ . (6) When applying this equation to nucleation and growth, the correction term σC does not affect the calculations.
Sigli, "Nucleation, Growth and Coarsening of Spherical Precipitates in Aluminum Alloys", presented at Aluminum Alloys: Their Physical and Mechanical Properties (ICAA7), Charlottesville, Virginia, USA, 2000
Shahani, "Phase Diagram, Solidification and Heat Treatment of Aluminum Alloys", presented at Aluminum Alloys: Their Physical and Mechanical Properties (ICAA6), Toyohashi, Japan, 1998

Introduction Zirconium alloyed with niobium is used for manufacturing fuel claddings and pressure tubes on account of its favourable nuclear and mechanical properties.
In a polycrystalline material, grain boundaries(GB) significantly affect the mechanical behaviour of materials.
The size of the simulation box in each case was derived iteratively by adjusting size as a factor of lattice constant.
Journal of material science, 54, 3082-3095 [12] Divya Singh, Avinash Parashar (2019) Atomistic simulations to study the effect of Nb precipitate on fracture properties of bi-crystalline Zr, Journal of Physics D: Applied Physics, 52, 355304 [13] Divya Singh, Avinash Parashar (2019) Effect of Nb precipitate on defect formation and migration energies in bi-crystalline Zr.

This paper reports cationic polymerization of Thevetia peruviana seed oil with styrene and divinylbenzene using modified boron trifluoride etherate as initiator, and the tensile strength, impact strength, moduli, elongation at break, hardness, and dynamic mechanical properties of the cured resins. 2.
Figure 6 shows the tensile properties and profile of ultimate tensile strength of TPO polymers, respectively.
The TPO polymers produced were observed to have good properties, with polymer 1 having overall best properties that make it a potential matrix material for composite development for industrial applications.
Pradhan Naik. (2009.): Physical Properties of Fruit and Kernel of Thevetia peruviana J. a potential biofuel plant, Int.
Jones (2000): Stability and Film Properties of Tung Oil Modified Soybean Alkyd Emulsion.

Drawing engine universal performance characteristics map method based on MATLAB Zhipeng Zhang Jianzhen Zhang College of Mechanical and Electrical Engineering, Hainan University, Haikou, 570228 China 15120697945@163.com Keywords: MATLAB; Engine; Universal characteristics curve; fuel consumption Abstract: The changing tendency of engine performances in its operational range can be directly showed in the engine universal performance characteristics map.
But many real factors affect the engines operating conditions, such as road conditions, weather conditions and so on.
In additional, it provides dynamic property and economy characteristics research of engines, engines parameters calibration and matching of engines and drive line systems with more reliable basis

So we should strengthen propaganda, first from the city area, eventually spread to the countryside. 1.2 Design of low level The thermal comfort of residential building design is relatively backward, need to residential building design means learning developed area, the government promote the construction of energy-efficient design unit, but is not a complete set of low energy consumption and thermal comfort of residential design manual, or have some design atlas but not advanced enough, the main reason is the following two points, one is the northern Jiangsu area construction of higher learning quantity is less, and the intellectual property rights can not be protected, the architectural design of scientific research personnel enthusiasm is not high.
Expectation Building thermal environment of residential directly affect the comfort of occupants.
Green building through a variety of factors inside and outside space design of buildings, the material energy in the internal building ecological systematic circulation use, and obtain an efficient, low consumption, less waste, less pollution, ecological balance of the built environment.
Beijing: Mechanical Industry Press. 2005，p.48.

Despite of the mentioned factors, the machining processes play significant role to produce components of smart materials, super alloys and other composites.
In these models, only shear strength of work material has been considered for calculation of cutting force as given in equations 1-3 and missing the factor affecting cutting process like strain at fracture and power for cutting.
Table 3 Chemical elements and Mechanical properties of EN-31 alloy Steel Chemical Contents Wt% C Si Mn Cr Co S P 0.9-1 0.10 0.30 1.2 0.025 0.040 0.04 Mechanical Properties Hardness (HB) Tensile strength (MPa) Elongation at breakage Shear strength (MPa) Strength coefficient K (GPa) Hardening exponent (n) Cohesive energy (Ech) J/m2 [2] 280 850 5% 520 1.34 0.25 4.2*104 The detail of input variables along with output responses have been mentioned in Table 2.
The chemical composition and mechanical properties of EN-31 has been listed in Table 3.
Mechanical Systems and Signal Processing 169 (2022): 108772

A quantitative metallography study was conducted on the partially softened structure to investigate the number density of recrystallized grains and to verify the indirect measurements of the fraction recrystallized calculated based on the mechanical properties.
Continuous cast (Rx. hot band) Ingot cast (Rx. hot band) Mechanical property 40%CR 80%CR 40%CR 80%CR As-rolled stress [MPa] 285 335 288 343 Recrystallization start stress [MPa] 173 227 170 219 Fully recrystallized stress [MPa] 106 117 94 112 Due to the negligible effect of the annealing temperature on the recrystallization start and finish stress (at least for the conditions studied in this work), these stresses are considered for estimating the fraction recrystallized for the CC and IC materials based on: . .
Excellent agreement was observed between the fraction recrystallized calculated from the mechanical testing data and estimated from the quantitative metallography results.
In addition to solute depletion, resistivity measurements can also be affected by dislocation scattering [9,11,12].
Stumpf: International Conference on Aluminum Alloys: Their Physical and Mechanical Properties, University of Virginia, Charlottesville, Virginia (USA), June (1986), p. 1441