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The structure of Candida rugosa lipase in water-methanol system significantly changed from the initial structure as indicated by the RMSD value, which was about 6.4 Å after 50 ns simulation.
Methods The crystal structure of Candida rugosa Lipase (CRL, PDB ID: 1CRL) [10] was used as initial structures for MD simulations.
Water molecules and n-acetylglucosamine were removed from the crystal structure leaving only the protein structure of CRL.
Results and Discussion Structure of Candida rugosa Lipase (CRL).
Meanwhile region with helix or sheet secondary structure was relatively stable, random coil and turn secondary structure have more flexibility.

The shape of UV absorption curve was mainly depended on the molecular structure of organic matter, and different organic compounds have various molecular structure and complexity.
While the absorbance around 260~400 nm was caused by the benzene ring structures with multiple conjugated structures [19, 20].
From the aspect of molecular structure, it can also provide some information related to maturity.
Chemistry of Soil Organic Matter.
Humus chemistry: genesis, composition, reactions.

Project B: It was a construction project of an administration building, which was brick-concrete structure, with floor area 17736 m2.
Project C: It was a decoration project of a residential district, which was brick-concrete structure.
In demolishing buildings, the amounts of the construction wastes were related to the structures and the functions.
As for different structures, the components of construction wastes were different.
Table 3 showed the construction wastes per unit area of different structure projects.

The resulting structures were characterized by TEM and various ancillary means, including tensile tests, and load reversal tests.
Results and discussion 3.1 Precipitation sequence and precipitate morphology The Al-Mg-Si-Cu system has been widely studied and has a complex precipitation sequence which is dependent on the chemistry of the alloy, particularly the Mg/Si ratio and the concentration of Cu [1-3].
The formation of band structure is characteristic of the case where the precipitates are sheared by moving dislocations [5].
The structure change is characterized by the production of a simple cell structure pinned at the particles (Fig.5b).
There is a recovery into a network structure (Fig.5c) but about 12% of the structure is recrystallized (Fig.5d).

The intensity of wood impregnation is influenced by several factors related to the capillary structure of the material.
After all, some have a more porous structure, which contributes to better impregnation, while others, on the contrary, have a denser structure, which complicates this process.
Results and Discussion Wood has a complex chemical content and structure, and water has a specific structure.
From the point of view of chemistry, it is possible to talk about the rapidity of chemical reactions (macrokinetics).
Shi, Environmentally benign wood modifications: a review, ACS Sustainable Chemistry and Engineering. 8(9) (2020) 3532–3540

We also perform the simulation of Li-ion intercalation process for different structure of anode represents different materials/structures used in battery anode i.e., bulk carbon graphite and carbon nanomaterials which is important for future design of anode structure of battery.
To understand structure dependence of intercalation process in lithium ion battery, a simple two-dimensional simulation is performed between bulk and phorous structures.
For bulk structure, Li-ions concentration remains high (light blue color ~2000 mol/m3) in the electrolyte as compared with phorous structure (blue color ~1999.5 mol/m3).
Moreover, Li-ion concentration in phorous structure is higher and uniformly distributed to the surface of every small phorous electrode due to higher surface area of phorous structure.
Two-dimensional model of intercalation process in battery system for two different anode structure; bulk anode stucture (a) and phouros structure (b).

Introduction The architectural control of nano- and macrostructures with well-defined shapes is an important goal of modern material chemistry because of the importance of the shape and texture of materials in determining their widely varying properties.
In this work, we report on the synthesis of PbWO4 nano and macro-structures through simple microemulsion-based solvothermal and microwave irradiation methods.
Further increasing the CTAB concentration to 0.20 M, sample 13 was dominated by cactus-like structures and a few flower-like structures.
A high magnification image of the cactus-like structure is shown in Fig. 4f, from which we can see that the structure is composed with many sawtooth laminar crystals and similar with the stems of a cactus.
Conclusions PbWO4 nano and macro-structures were successfully prepared with solvothermal and microwave irradiation methods.

Danilczuk Institute of Nuclear Chemistry and Technology, Dorodna16, 03-195 Warsaw, Poland Keywords: silver clusters, zeolite rho, EPR Abstract.
Result and discussion Structure of zeolite framework.
The rho structure consists of a body centered cubic arrangements of α-cages joined together through double eight-member ring.
The outer lines of pentet Q' show a well-resolved additional structure due to superhyperfine interaction of Ag43+ with ammonia molecules.
The absorption of 15NH3 proves univocally that superhyperfine structure results from the interaction with nitrogen nuclei.

That is especially the case in oil refining and petro-chemistry [3].
The kaolin structure consists of a kaolinite, which is a group of mineral hydrated aluminosilicate.
The general formula for kaolin is (OH)4Al2Si2O5), triclinic structure.
The zeolite A was highly pure and had the required crystalline structure [7].
Varga, The structure of kaolinite and metakaolinite.

EDS and X-ray diffraction investigations showed that presence of silicon carbide phase on the aluminium matrix structure. 1.
It can be seen from the images that the SiC particulates have multi cornered structure with sharp edges and corners.
This type of morphology is helpful in enhancing the bonding of matrix and reinforcement in the composite structure. 2.2.
Figure 8 (a) shows the EDS of the Microwave processed structure of material, which is not mixed with SiC.
Asian journal of chemistry. 23(12). (2011). pp. 5643-4645