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It plays key roles in most continental ecosystems, represent an important part of the soil macrofauna, and is integral to the maintenance of the structure and the fertility of soils.
Earthworms respond to a variety of environmental and ecological factors such as changes in soil chemistry, and forestry and agricultural practices, and can be considered as an indicator of soil functioning due to their strong impact on soil [4].

Chemical analysis was carried out to determine the soil chemistry [4] and the results are shown in Table 1.
All the potential values in this paper were relative to the saturated calomel electrode (SCE). 2.3 Characterization of corrosion products The micro-structure morphologies of the copper-clad steel were analyzed using the Hitachi scanning electron microscope (SU-1500, all-in-one machine). 3 Results and discussion 3.1 Electrochemical impedance spectroscopy The Nyquist impedance plots of copper-clad steel electrodes immersed in different salinity in soil solution are shown in Fig. 1.

Shimizu, Formation of forsterite (2MgO SiO2) from the mixture prepared by alkoxy-method, Chemistry Letters. 5 (1976) 401-404
Pinkerton, Porous structures fabrication by continuous and pulsed laser metal deposition for biomedical applications, modeling and experimental investigation, Journal of Materials Processing Technology. 211 (2011) 602-609

Namely, the effects of tailoring the grain structure on the fracture toughness of silicon nitride were demonstrated in [2].
Petzow: Pure and Applied Chemistry 66 (1994), p. 1807–1814 [4] P.

Introducion During its service life, a large number of supporting structures are in corrosive circumstance.
The interaction of mechanics and chemistry is a complicated process, and the mechanism of the mechanochemical effect is still the hotspot of the galvanic corrosion research [3].

Synthesis, Optoelectronic Properties of a novel Photochromic Diarylethene Bearing phenyl and benzofuran group Duohua Jiang, Gang Liu*, Weijun Liu, Shiqiang Cui Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University， Nanchang 330013, P.R.China liugang0926@163.com Keywords: Diarylethene; Photochromism; Fluorescence switching; optical storage.
The structure of compound 1a was confirmed by 1H NMR. 1H NMR (CDCl3, 400 MHz, TMS): δ 2.06 (s, 3H, -CH3); 2.12 (s, 3H, -CH3), 7.23 (d, 1H, J = 8.0 Hz, phenyl-H), 7.30 (d, 1H, J = 7.8 Hz, phenyl-H), 7.36 (t, 2H, J = 8.2 Hz, phenyl-H), 7.46 (d, 2H, J = 12.8 Hz, phenyl-H), 7.52 (d, 3H, J = 6.2 Hz, phenyl -H), 7.60 (t, 1H, J = 11.6 Hz, phenyl-H), 7.70 (s, 1H, phenyl -H).

Synthesis of Ag, Pd-loaded Bi2WO6 and Its Photocatalytic Activities Li GUO a, Dan Jun WANGb*, Feng FUc, Xiao Dan QIANGd, Te Xue College of Chemistry &Chemical Engineering, Yan' an University, Shaanxi Key Laboratory of Chemical Reaction Engineering, Yan' an 716000 aemail:guoli761118@163.com, bemail: wangdj761118@163.com, cFengFu@163.com, cqiang xiaodan@163.com,eTe Xu@163.com Keyword: Hydrothermal method; Ag, Pd loaded Bi2WO6; visible-photocatalytic activity.
The phase structure, crystallinity and purity of as-obtained product were examined by XRD measurement.

The structures of researching compounds: a) 5-MOP, b) CS5, c) CS4 All experiments have been carried out using a XeBr excilamp, purchased from the Institute of High Current Electronics of Tomsk (Russia).
Truscott, Flash Photolysis and Pulse Radiolysis: Contributions to the Chemistry of Biology and Medicine [in Russian], Mir, Moscow (1987)

Combustion Synthesis and Luminescence Properties of Li2Ca1-x-ySiO4: xEu3+, ySm3+ Phosphors Ce Zhaoa, Kehui Qiub*, Xia Hec , Guoyin Yand and Sizhu Chene Institute of Materials Science and Technology, Chengdu University of Technology, Chengdu 610059, China College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China a15708455475@163.com, bqkh2188@163.com, c15828258586@163.com, dyanguoyin_1989@126.com, echensizhu90@163.com Keywords: Combustion method, Li2CaSiO4, Co-doped, Energy transfer.
Its crystal structure and luminescent properties was investigated.

Studies on Penicillium M2 chitosanase immobilized on CSG hybrid material by cross-linking reaction Yanjun Wang1, a, Shaoling Zhuo 2, b,sheng Chen1, c * 1Fuqing Branch of Fujian Normal University, Fuqing 350300,China 2College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007,China ahrbwyj@yahoo.com.cn, bzhuoshaoling1222@163.com, cchensheng@fjnu.edu.cn, Keywords: CSG hybrid material; Immobilization; Chitosanase; Chitosan Abstract: Chitosanase was immobilized on CSG hybrid material by cross-linking reaction and the immobilization conditions and characterization of the immobilized enzyme were carried out.
Chitosan is one of such perspective polymers, possessing the regular chain structure and forming true solutions in the dilute water solutions of organic and inorganic acids that allow to include its in sol–gel process in situ in order to prepare the hybrid material for enzyme immobilization.