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The main reason for not carrying on much spectral studies of Sm3+ ions doped in glasses is the [6] complicated structure of 4f6 configuration of this ion.
Sepctor, Optical transitions of Sm3+ in oxide glasses, Journal of Solid State Chemistry. 28 (1979) 75-79

（Note：*Representative P<0.05,** RepresentativeP<0.01） Fig 1.The pH change of different cotton cultivars in seedling 3.2 Soil organic matter The soil organic matter is the edaphon and the bacterium important nutrition origin.It improved the soil structure, the water retention property and the ventilation.
Appl Environ Microbiol, 63:3561～3568 [12] Stevenson FJ ed. 1982.Humus Chemistry:Genesis, Composition, Reactants.

Research on the Pollution of Marine Engineering Construction in Southern Petrochemical 1,aZHANG Yong-li, 2,bZUO Xun 1Institute of Eco-Environment,Hanshan Normal University, Chaozhou, Guangdong 2Department of Chemistry, ,Hanshan Normal University, Chaozhou, Guangdong a,zhang024@hstc.edu.cn bzuoxun@hstc.edu.cn Keywords: Petrochemical; construction project; water pollution; air pollution Abstract: For the marine engineering construction of Sinochem Quanzhou Petrochemical Co., Ltd. the pollution of port sewage, wastewater, rainwater and sewage vessels after inspection and testing were quantified.
Huanggan Island Dock flushing wastewater, initial rainwater which collected are stored in the set pool below the dock structures through the open drain, qualified oily wastewater receiving ship receive and transport those wastewater to Qinglan Mountain Dock, and they are taken over by the dock through the pump in the boat, recycling pump Qinglan Mountain reservoir, with all kinds of production in Qinglan Mountain Dock through pipes are back to factory sewage farm.

Research on Virtual Learning Community based on Physical Knowledge Menglong Li1* , PENG Hong-jian2*, ZHANG Xinkang3 1Physical Education Institute, Hunan University of science and technology, Xiangtan, China 2School of Chemistry and Chemical Engineering, Central South University, Changsha, China 3Department of Science Research, Hunan University of science and technology, Xiangtan, China sbssqdx@yahoo.com.cn Keywords: sports knowledge, education, knowledge, virtual reality Abstract.
Enterprises the "culture" refers to elements of the main organization on the performance of shared values, such as high-level support; enterprises in the "management" on elements of performance, then, it is mainly in order to drive "knowledge of the wheel" which is involved in the organization and institutional ,such as knowledge management, organization and structure (including some virtual communities), knowledge management and operation system, knowledge management and evaluation system, knowledge management incentive system and so on; enterprises in the "technical" elements of the performance, is mainly in "knowledge of the wheel" each aspects of IT applications and it is required tools and applications available on the.

Results and discussion Structure characterization of the catalyst.
Electroanalytical Chemistry and Interfacial Electrochemistry Vol.60 (1975),p.267 [13] J.H.Kim, H.Y.Ha, I.H.Oh, S.A.Hong, H.N.Kim and H.I.Lee:Electrochim.Acta Vol.50 (2004),p. 801 [14] J.B.Xu,T.S.Zhao and Z.X.Liang: J.

ZnO and ZnAl2O4 structures are polycrystalline by the presence of a multitude of (hkl) planes.
Wang, Influence of post- annealing treatment on the structure properties of ZnO films, App.
Ghasemifards, Synthesis and structure of pure and Mn-doped zinc oxide nanopowders, Inter.
Zhou, Effects of hydrothermal post-treatment on microstructures and morphology of titanate nanoribbons, Journal of Solid State Chemistry, 179 (2006) 349–354
[54] Handbook of Chemistry and Physics, 56th Edition, Ed.

Room Temperature Ferromagnetism and its “Switch” Behaviour in some Dilute Magnetic Oxides: an Electronic Structure and Magnetization Study R.
Wang et al. [96] studied soft chemistry route prepared Cr-doped ZnO and effect of Cr doping on magnetic property of ZnO.
The crystal structures were refined using the Rietveld refinement program FULLPROF [100].
The corresponding satellite structures (S1, S2) are observed at ~860.7 and ~879.3 eV, respectively.
Rietveld analysis confirms that the samples possess wurtzite structure with no evidence of any secondary phases.

Some facts about quasicrystals The quasi-crystalline state was detected on a quenched Al86Mn14 alloy in 1984 by Daniel Shechtman [1], who received in 2011 the Nobel Prize in chemistry for this discovery.
The structure of quenched Al86Mn14 revealed the symmetry of an icosaeder.
However, there are also a few two-element alloys with quasi-crystalline structure.
Trebin (Vol.Ed.), Quasicrystals – Structure and Physical Properties, Wiley-VCH, 2003
Blüher, Diffusion in Quasicrystals, Chapter 4.1 in: Quasicrystals—Structure and Physical Properties, Vol.Ed.: H.

The corrosion of underground structures is a very widespread problem, Structures such as natural gas, crude oil pipelines, and water mains are only some of the many structures reported to have been affected by soil corrosion all around the world [2, 3].
In the galvanic system, the metallic structure is made the cathode (negative) by connecting it to galvanic anodes, which are more negative than the metallic structure to be protected.
The electrons released pass through the metallic connection between anode and steel, and thus enter the structure to be protected.
Potential: the potential of anode must be more negative value than the structure potential. 2.
This behavior is attributed to the presence of Sn as an alloying element leading to electrochemical activity of alloy due to modification in the chemistry of the film leading to the active dissolution of Al [15].

Result and Discussion The structures of pristine nanoceramics and each nanoceramic-biomolecular nanohybrid are displayed in Fig. 1.
Fig. 1 (A) shows the structure of pristine nanoceramics, LDHs or clay.
The layer structure of LDHs is constructed with a stacking of brucite structure of Mg(OH)2 in which Mg(OH)6 octahedra are connected through edge sharing into 2-dimensional sheets with layer thickness of 4.8 .
Thus LDHs are widely applicable to various supramolecular structure or heterogeneous hybrid systems.
(A) structure of pristine (a) layered double hydroxide (LDH) and (b) clay (B) schematic diagram of nanoceramic-biomolecular nanohybrids (a) ATP-LDH, (b) FITC-LDH, (c) As-myc-LDH, (d) MTX-LDH and (e) itraconazole-clay The structure of pristine LDH and montmorillonite is demonstrated in Fig. 1(A), showing 4.8 and 9.3 Å of layer thickness.