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This made several researchers studied the variation of composition and crystal structures (crystallization of elite and elite) of cement clinker due to the variation of cooling rate [5-12].
Ward, Effect of heat treatment and cooling rate on the microscopic structure of portland cement clinker, Journal of Research of the National Bureau of Standards, 26, 49-64, (1941)
Lea, The chemistry of cement and concrete, Chemical Publishing Inc., New York, 1092, (1972)
Ward, Effect of heat treatment and cooling rate on the microscopic structure of portland cement clinker, Journal of Research of the National Bureau of Standards, 26, 49-64, (1941)
Fifth International Symposium on Chemistry of Cement, Tokyo, 1, 275-284, (1968)

Metallic Film Modified Screen-Printed Carbon Electrode for Determination of 17α-Methyltestosterone Chim Math1, a, Wijitar Dungchai1, b and Sudtida Pliankarom Thanasupsin1,2c* 1Department of Chemistry, Faculty of Science, King Mongkut’s University of Technology Thonburi 10140, Bangkok, Thailand 2Center of Excellence on Hazardous Substance Management (HSM), Bangkok 10330, Thailand amathchim@gmail.com, bwijitar.dun@kmutt.ac.th, csudtida.tha@kmutt.ac.th Keywords: 17α-Methyltestosterone, Metallic film, Screen-printed carbon electrode (SPCE) Abstract. 17α-methyltestosterone (MT) is a synthetic androgen.
Fig. 1 MT structure MT is banned in the European Union since it has been suspected as being a risk to human health.
The different nature and structure of metallic film-modified electrodes can influence the extent of potential interferences as compared to common carbon electrodes.
Acknowledgments This work was financially supported by the department of chemistry at King Mongkut’s University of Technology Thonburi (KMUTT).
Wang, Effects of 17 α-methyltestosterone and aromatase inhibitor letrozole on sex reversal, gonadal structure, and growth in yellow catfish Peltobagrus fulvidaco, Biol.

For crisp grass carp (CGC), because of its protein types, contents, structure and thermal stability different from grass carp, how changes of protein stability effect texture of CGC during frozen storage were rare reported.
Because bound water and free water froze at the same time, which resulted in changes of muscle protein structure.
In addition, the salts of fish muscle concentrating due to water crystallization and ice crystals generation outside the muscle cells, which damage the muscle tissue[16]resulted in structure changes, eventually leading to protein denaturation and reducing hydration of protein.
Badii, N.K.Howell: Journal of Agricultural and Food Chemistry vol.50(2002), p. 2053-2061
Guilléna, C.Casas: Food Chemistry vol, 100(2007), p. 498-503

This may be explained by a smaller structure of chromate ion as compared with dichromate ion (Fig. 2.), thereby facilitating a greater accessibility into the adsorbent’s pores.
Structures of chromate (CrO42-) and dichromate (Cr2O72-) ions.
solution Langmuir Isotherm Freundlich Isotherm q KL R² n KF R² K2CrO4 6.1638 0.0096 0.9824 1.9191 0.2455 0.9777 K2Cr2O7 2.6425 0.0123 0.9862 2.2991 0.1717 0.9667 Potassium dichromate that possesses a larger structure would adsorb in monolayer manner rather than multilayer adsorption, as a result, the amount of chromate adsorbed for the case of potassium dichromate was lower than that of potassium chromate.
Colorants and Auxiliaries: Organic Chemistry and Application Properties (Volume 1-Colorants), 2nd ed.
Lide, Handbook of Chemistry and Physics, 88th ed.

Fuel element structure Nuclear power plants are objects of increased danger, so their development prospects are closely related to issues of safe operation 7] and protection of territories, personnel [8], the environment [9] on the territory of the station [10].
Main Part The water chemistry regime of each NPP is developed with account for providing the corrosion resistance of all structural materials that are exposed to the coolant action under the design conditions of operation [16, 17].
To anticipate the effectiveness of the water chemistry regime one has to determine the limit concentrations of compounds in the recirculating water for the intensity of corrosion products deposition on the power equipment heat exchange surfaces that requires long-term and labour-consuming experimental studies.
Its lifetime is short but its activity is so high that this time is sufficient to penetrate through the zirconium crystallographic structure [23].
Conclusion Summing up the research, we can say that due to the long operation of the equipment, its constant contact with the corrosive environment under neutron irradiation in the structure and properties of structural alloys there are changes that lead to some degradation of the surface of structural materials.

DABCO-directed self-assembly of pyrene-centered porphyrin pentamers Zhuangdong Yuan, Jingxia Wang, Ning Sheng* Key Laboratory of Inorganic Chemistry in Universities of Shandong, Jining University, Qufu 273155, P.
The coordination bonds formed by transition-metal centers are an attractive and simpler alternative for directing the formation of complex structures.
Several strategies have been explored in the use of metal-ligand interactions as the driving force for the assembly of supramolecular structures [17-26].
Fig. 1 Molecular structure of zinc porphyrins-pyrene array 1. 2.
Sanders , A strategy for the assembly of multiple porphyrin arrays based on the coordination chemistry of Ru-centered porphyrin pentamers, J.

Bi2WO6 Nanoparticles Prepared by Combustion Synthesis with Different Fuels and their Photocatalytic Activity Maris Kodols1a*, Sabine Didrihsone1b, Janis Grabis1c 1Address: Institute of Inorganic Chemistry, Riga Technical University, Miera str. 34, Salapils, LV-2169, Latvia amaris.kodols@gmail.com, bnki@nki.lv, cgrabis@nki.lv Keywords: bismuth tungstate, photocatalyst, combustion method, methylene blue degradation Abstract.
Introduction Bismuth tungstate due to a layered crystal structure and the band gap in the range of 2.56 –2.70 eV depending on the crystallite size and specific surface area [1-3] is promising photocatalyst.
At lower calcination temperatures the products form spongy agglomerated structure without strictly defined particle boundaries.
It is notable that used organic fuel does not change the morphology of the agglomerates of the as-prepared powder – structures are spongy in all cases, but the mode of particle growth changes during calcination.
Rašmane, Photocatalytic activity of ZnWO4 nanoparticles prepared by combustion synthesis, Latvian J. of Chemistry, 51(1-2) (2012) 93–98 9

Krisnandi1, Jarnuzi Gunlazuardi1,b 1Department of Chemistry, Faculty of Mathematic and Science, University of Indonesia, Depok 16424, Indonesia 2 Center for Technology of Nuclear Industry Materials, National Nuclear Energy Agency, Kawasan Puspiptek, Serpong 15314, Indonesia aadel@batan.go.id, b jarnuzi@ui.ac.id Keywords: Silica-coated magnetite, nano-composite, adsorption, Fe3O4, SiO2, dyes.
Practically, the treatment of water is usually conducted in a suspension of the nano-structure, an additional separation step is required to remove the nano-materials from a large volume of solution, resulting in expenses increase.
X-ray patterns of Fe3O4 and Fe3O4/SiO2 Variables Powder X-ray diffraction (XRD) patterns were used to identify the crystalline structure of magnetite and Fe3O4/SiO2.
Thus, the particles can be indexed to a phase of Fe3O4 structure.
Aspects, The surface chemistry of amorpous silica.

Study on Procedure Toxicity and Harmless Disposal of Manganese Mine Tailing Slag Wen-Zhang Huang1,a and Lu Ning1 1College of Chemistry and Bioengineering, Chongqing University of Science and Technology, Chongqing 401331,PR China ahwz4889@163.com Keywords: extraction procedure toxicity, ratio of liquid to solid, solidification additive, harmless disposal, simulated acid rain Abstract.
The chemical technology, environmental measures associated with the curing chemistry has become the key of harmless manganese slag treatment.
Cement was used as a curing agent, which strengthened the force between dispersed particles in the slurry, and made it had a certain crystalline structure and hardness, and also accommodated some of heavy metal ions within the crystal, making part of the heavy metal ions reduced or mobility lost.
Lime was a coagulant, which could promote the crystal structure of the cement mixture prototyping rapidly and increase the hardness of cured.
Hence, the number of cementitious material was significantly increased, and the interface structure of gel and aggregate were improved.

The similarity in variation of the phase structure and the Td of BNKB ceramics reveals the nature of Li+ introduction source on phase structure in BNKB ceramics.
The effect and mechanism of Li+ introduction source on the phase structures and depolarization behavior were discussed.
The complex effect of these two effects will control the phase structure as the Li+ introduction increasing.
XRD patterns show that all the ceramics specimens exhibited pure perovskite structure.
Lide: CRC Handbook of Chemistry and Physics. 2003