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The Characteristic and Mechanism of Lead Pollution in Soil Profiles from a Sulphuric Acid Slag Pile Sit in Guangdong,China Jingyong Liu1,a, Xunan Ning1,b 1Faculty of Environmental Science and Engineering, Guangdong University of Technology, Guangdong Guangzhou,510006,China awww53991@sohu.com ,bCorresponding author: ningxunan666@126.com Keywords: sulphuric acid slag; soil; lead pollution Abstract.
The Yunfu pyrite mine in Western Guangdong, the largest chemical origin materials, was the largest deposits of pyrite in Asia with the pyrite reserves of 2×108t.
Materials and Methods Samples collected.
The standard solution for Pb quantification was prepared by employing the same procedures as for field sample by dissolving a natural standard reference soil (GBW07406) acquired from the National research Center for Certified Reference Materials, China.
It can be drawn that the acidification of alkaline waste was the key factor in the releasing of Pb with the acid rain leaching.

Influence of Welding Parameters in Substrate/Coating of Galvanized Sheets Using Resistance Spot Welding Joanes Silva Dias1,a, Hector Reynaldo Meneses Costa1,b, Ricardo Alexandre Amar de Aguiar1,c, Rosemere de Araujo Alves Lima1,d, Marcio Luiz Almeida Cunha2,e and Ramon Fonseca Ferreira1,3,f 1Centro Federal de Educação Tecnológica Celso Suckow da Fonseca, Graduate Program in Mechanical Engineering and Materials Technology, Av.
The shear test in resistance spot welding is a key test for the evaluation of the failure load of the weld.
This combination of parameters can be applied in other circumstances, with other parameters that have not been evaluated in this study, such as retention time, hold time, postheat time, different materials or thicknesses, to give a complete view of the quality of weld formation.
Aslanlar: Kovové Materiály - Metallic Materials Vol. 48 (2010), pp.137–143
[9] AWS D8.9-97, Recommended Practices for Test Methods for Evaluating the Resistance Spot Welding Behavior of Automotive Sheet Steel Materials (1997)

These advantages include efficient and instantaneous generation of heat throughout the materials, selective heating of materials and even selective stimulation of certain chemical reactions.
About 8~11 percent of CaF2 was added into the mixtures as fluxing materials. 9.8~12.2 g samples are weighted and well mixed were provided for the experiments.
In microwave heating process, due to the electromagnetic properties of the material plays a decisive role, the microwave field has a "mixing" effect on the molecular level and ion’s diffusion effect, solid-phase reduction reaction conditions is better than the conventional heating.
CHEN Jin; SONG Pingwen; WANG Shebin; LI Yanfang， Kinetics of Voluminal Reduction on Manganese Oxide Ore Fines Containing Coal by Microwave Heating，The Chinese Journal of Process Engineering, 2009.06，9( S1): 1-6
CHEN Jin; PAN Xiaojuan; ZHANG Meng; ZHAO Jing; LIN Yuansheng ,Heating Characteristics of Manganese Oxide Ore Fines Containing Coal under Microwave Irradiation,, Materials Review, 2007.11，21(11A):81-84

On the other hand, the rigidity of the lateral force is strong for the filled walls, therefore the distributed seismic force is large with low strength for the materials, which cause the serious crack and destroy.
Moreover it includes increasing the setting of the structural column and improving the ratio of the masonry intensity and the mortar materials to guarantee the quality of the masonry and upgrade the reliability of the structural design.
The four corners of the buildings is the key part to ensure the integrity of the structure.
To address the crack of the infill wall of the frame structure, the gap should be left between the infill wall and frame column, which is filled with flexible building materials, to leave enough space for deformation of the frame column.
Journal of Disaster Prevention and Mitigation Engineering(In Chinese). 2009, 29(5):591-595

Analysis on the Technology of Crop Straw Curing Molding for Energy-oriented Using GUO Xing-yua, RUAN Jian-wenb, CAI Zong-shou, YU Ji-wen, RUAN Jie-qiong, LI Jian College of Engineering and Technology, Yunnan Agricultural University, Kunming650201, China asuperguoxy@163.com, bruanjwen@163.com (corresponding author) Key words: Straw; curing molding; energy-oriented using; technology and development Abstract: In our country, crop straw output more than 600 million tons per year, which is a huge amount of renewable biological resources, and the prospect of energy-oriented using is promising.
The comprehensive utilization of crop straw has five main ways in China at present: use as a fertilizer, feed, fuel, industrial raw materials and edible fungus base.
Experiments showed that such model adapted to the crops such as wheat, rice, maize straw and sawdust which are difficult to curing molding materials.
The main factors that affect crop straw curing molding are temperature, pressure, processing time and the material itself characteristics.
Crop straw curing molding materials mainly are abandoned maize straw, wheat straw, rice straw and branches.

Synthesis and spectroscopic properties of LiY(WO4)(MoO4): Eu3+ red phosphors for white LEDs Xianju Zhou1，a*, Tonghui Zhou1，b, Yingmao Li1，c, Qiaochun Feng 2，d 1.Department of Mathematics and Physics, Chongqing University of Posts and Telecommunications, Chongqing, 400065, China 2 Chongqing Yapai Bridge Engineering Quality Testing Co.
Since are earth materials are exiguous and precious, it is desirable to reduce the demand of them.
Starting materials MoO3(99.5%), WO3(99.0%), Li2CO3(98.0%), Y2O3(99.999%)，Eu2O3(99.999%) were weighted carefully according to a certain stoichiometric ratio and grounded to mix these materials well.
The doping concentration of activator affects the optical properties of luminescent materials greatly.
[5] Chung-Lun Lo, Jeng-Gong Duh, Bi-Shiou Chiou, Chao-Chi Peng, Lyuji Ozawa, Materials Chemistry and Physcis, 71 (2001) 179-189

This allows application of FeCrAl alloys as construction materials in a large variety of industrial and domestic facilities[1].
Hence there is a need to improve the oxidation behaviour of the FeCrAl materials so that the needed lifetimes of the FeCrAl-based components can be maintained.
There is a well accepted theory suggesting that rare earth elements determine the development of oxide pegs that key the oxide to the base alloy[5].
As we know, oxygen adsorption on the surface is the first step of materials oxidation.
Fontana: Corrosion Engineering. 3th ed.

Calculations was made for three pollution sources (sewage treatment plants DeVries, Plywood factory and Vtoraya river) showed that the issues in the areas of DeVries and Vtoraya river lead to the accumulation of non-biodegradable materials in the areas of wastewater outfall, in the northern part of the Amur Bay and the gulf Uglovoye (Fig. 2).
That means that non-biodegradable materials occurs no state of equilibrium and non-biodegradable materials, except for suspended solids in these areas may be outfall in a concentration not exceeding the MAC, and the suspended matter - with a concentration equal to the background concentration in the Amur bay.
Perform a prediction water quality for one, two and three years on the parameters of wastewater resulting from calculations on p.3 for one non-biodegradable and one biodegradable materials, such as suspended solids and BOD.
The application of simulation technique for modeling marine water areas silting in production of hydro engineering works.
Spreading of Rainfall Runoff Materials over Amur Bay.

An Easy Approach for Obtaining Superhydrophobic Surfaces and their Applications Amani Khaskhoussi1,2,a*, Luigi Calabrese1,b, Edoardo Proverbio1,c 1Department of Engineering, University of Messina, Messina, Italy 2National Interuniversity Consortium of Materials Science and Technology, INSTM, Firenze, Italy a,*akhaskhoussiamani105@gmail.com, bblcalabrese@unime.it, cceproverbio@unime.it Keywords: Aluminum alloy, Superhydrophobic surface, Corrosion resistance, Adhesion force, Coating Abstract.
In a similar manner, fishes can resist to sea oil pollution thanks to the roughness of their scales which would suggest a novel strategy to create and design a super-anti wetting materials by controlling the properties of their surfaces [5].
On this concern, new functional surfaces with super-hydrophobic capabilities can be acquired combining hierarchical rough surface morphology with low surface energy materials.
Materials and Methods Commercially available EN AW-6082 T6 aluminum alloy samples (30 mm×24 mm×2mm) were used as substrate.
Grinstaff, 3D superhydrophobic electrospun meshes as reinforcement materials for sustained local delivery against colorecal cancer cells, J.

The Preparation of the Highly Preferred Orientation of Wurtzite Structure Zinc Oxide Films Lan Lei-Lei1,a,Zhou Dan2,b,Gu Guang-Rui1,c*,Wu Bao-Jia1,d, Tian Lian-Hua1,e 1 Department of Physics, College of Science, Yanbian University, Yanji 133002, China 2 State Key Laboratory for Superhard Materials, Jilin University, Changchun 130012, China a 1060760595@qq.com, b 747836188@qq.com, c grgu@ybu.edu.cn, d jbwu@ybu.edu.cn, e lhtian@ybu.edu.cn, *corresponding author Keywords: magnetron sputtering, ZnO thin films, structure, substrate temperature Abstract.
Maiti, ZnO thin film sensor, Materials Letters 35 (1998) 33-38
Im, Effects of native defects on optical and electrical properties of ZnO prepared by pulsed laser deposition, Materials Science and Engineering B 71 (2000) 301-305
Singh, Structural and optical characterization of high-quality ZnO thin films deposited by reactive RF magnetron sputtering, Materials Research Bulletin 48 (2013) 1093-1098
Chen, Effects of different thermal treatment on optical properties and microstructure of ZnO thin films, Advanced Materials Research 197 (2011) 1766 -1770