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These results show that the basic factors in the curing system, such as the pH value, structure, and composition of both the resin and wood and the phase of the curing system, are significant in the curing process.
Chemistry and Industry of Forest Products, 2004, 24(3): 43

First, the composition of concrete materials such as aggregate, sand and cement is different in chemical component and mineral composition, the difference between content and age and the differences of mechanical properties makes the physics function and chemistry function to be different when under high temperature.
(a) elastic modulus (b) peak secant modulus Fig.  5 Relationship of elastic modulus and temperature 3.4 The stress-strain relationship of concrete when under high temperature The stress-strain curve of compressed concrete is comprehensive macroscopic reaction to its mechanical properties, can reveal the mechanics properties of concrete and its failure mechanism changes in each stage, and also is the obbligato physics equation in the nonlinear analysis of concrete structure.

These methods yield curves that are unique for a particular composition of matter and even slight changes in chemical structure and composition[14].
Bi, in: Environment instrumental analysis, Chemistry industry publisher, Beijing (2008)(In Chinese) [13] X.Y.

Effect of Secondary Pore Distribution on Adsorption Rate and Stability of Molding 5A Zeolite Yun Tang, Xudong Du and Qun Cuia College of Chemistry and Chemical Engineering, Nanjing University of Technology, Nanjing 210009, China acuiqun@njut.edu.cn Keyword: Molding 5A Zeolite, Secondary Pore, Coke Deposition, Diffusion Abstract.
Fig. 3 Micrompore distribution of 5A zeolite Fig.4 Pore number fraction (>10nm) of 5A zeolite Table 1 Pore volume, diameter and specific surface area of 5A molecular sieves Pore structure parameters A-1 A-2 A-3 <2nm BET surface area, [m²/g] 438.508 530.023 585.336 Pore volume, [cm3/g] 0.171 0.205 0.243 >10nm BET surface area, [m²/g] 7.953 1.754 1.321 Pore volume, [cm3/g] 0.323 0.319 0.173 Porosity, [%] 35.850 35.360 26.190 The information of secondary pores of 5A zeolite was measured by mercury (Poremaster GT-60).

(2) The calculation of the heat of formation The heat of formation of various compounds is calculated conveniently and the relationship between the molecular structure and its energy is analyzed by the bond energy additive method.
Industrial and Engineering Chemistry, 1966, 58(5): 18-27.

Consequently, there is a need to develop methods of the modification of the contact surfaces of tribosystem parts, to create special surface self-organizing structures.
These minerals are minerals belonging to the class of silicates: magnesium hydrosilicates (layered structure), aluminum silicates (framework structure) and mixed oxides (spinel-type structure) [4 – 5].
The aim of the research was the implementation of adaptability effect of the friction surfaces through the formation of specific secondary structures, the constitution of which is caused by the friction action of nanodimensional additives.
The effect of the filler reduces the molecular mobility of the fragments of the supramolecular structure of the polymer matrix, increases the structural strength of the composite material.
Yablokov, The Adhesive Properties of Polytetrafluoroethylene Films, Modified in Plasma, Chemistry of High Energies. 6 (2009) 569-572

It is not equipped with modern engineering structures to protect soils and groundwater.
They are heterogeneous, often different in structure and origin.
Metal structures are of material value and can be recycled.
This area has not previously been used for waste disposal and is free from structures.
Chemistry and Chemical Technology, 2020, 14(1), 102–108

XRD data will be presented, showing the crystal structure of the phosphorescent materials produced.
Photoluminescence measurements produced emission spectra to compare the electronic structure between the different phosphors.
In the case of the P5+ cation in the aluminate structure, the peak shift could be attributed to a perturbation in the chemical environment of the Eu2+ cation substituted onto the Sr2+ sites.
We are continuing investigation into the post-excitation emission spectra, in order to begin speculating on the influence of B and of other glass former additions on the electronic structure.
Clabau, F., Rocquefelte, X., Jobic, S., Deniard, P., Whangbo, M-H., Garcia, A., Le Mercier, T., Chemistry of Materials, 2005. 17: p. 3904-3912. 8.

The SEM image shows that the sorbent has smaller particle size with plate-like structure and has less porosity.
The conventional morphology of CaCO3 polymorph, known as aragonite is “needle-like” structure.
However, the shape may change into “flake-like” or “cauliflower-like” structure as shown in Fig. 5(a) restricted to certain crystallization condition [8].
Sorbent with more stable structure is able to capture more CO2 and withstand the multiple adsorption-desorption cycles.
Industrial & Engineering Chemistry Research, 55(16) (2016) 4532–4538.

Nowadays, the major direction in the study of LbL technique is how to use it construct nano-structure ordered functional system and then develop new type nano-structure materials with good performance [7-8].
The IR spectrum of the CMC-CS combining precipitate is recorded in Fig.1 to investigate its structure.
The chains turn to a curled conformation, leading to dense structure of the adsorbed film.
Nano-structure core-shell capsules are successfully fabricated via LbL assembling.
[10] Ni S.B, Li Y.B., Wang X.M., Preparation, application and functionalization of hydroxyapatite microspheres, Progress in Chemistry, 23(2010) 231-245