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Quality control for THg and MeHg determinations was addressed through testing of blind duplicates and certified reference materials. 10% of all the water samples had been duplicates.
Probing Hg evasion from surface waters of two Chinese hyper/meso-eutrophic reservoirs.Science of the Total Environment 2010;408:5887–5896
International Journal of Sediment Research, Volume 23, Issue 4, December 2008, Pages 338-347
Journal of Lake Sciences. 2010,22(2): 208-214
,Mercury dynamics of a temperate forested wetland[J].Science of the total environment,2004,239-254

Methods and Materials Materials and Apparatus.
All plant materials were collected from the dominant plants on lead-zinc tailings of Huize, and tailings soil were collected from lead-zinc tailings (the old tailings have been accumulated for 12 years and new tailings have been accumulated for 5 years), tailings soils were dried naturally and crushed for experiments.
Cheng: Chinese Journal of Environmental Engineering, Vol. 5(1) (2011), p. 189(In Chinese) [5] I.A.P.
Shi: Chinese Journal of Applied Ecology.
Zhao: Science Publishing House. ( 2008),p. 11(In Chinese) [10] Nanjing Institute of Soil Science: Shanghai, China: Shanghai Science and Technology Publishing House. (1977), p. 62(In Chinese) [11] Nanjing Agricultural College: Beijing, China: Agriculture Press(1980) (In Chinese) [12] G.Yang, J.

The search for low-cost, environmentally friendly materials has led to the development of different biodegradable plastics incorporating natural polymers [3].
Voilley, in: Journal of Agricultural and Food Chemistry, Vol. 53 (2005), p. 973
Hilliou: submitted to Journal of Applied Phycology (2009)
McKenna, Engineering and food, Elsevier Applied Science, New York, (1984), pp. 311-321
Annual book of ASTM, American Society for Testing and Materials (Philadelphia, PA, 1996).

A computer construction include more than 700 kinds of chemical raw materials, and more than half of them contain substances harmful to human body.
Although we can't entirely transfer from material economy out, but if quite share of the growth of the national economy transfer to immaterial economy, the contradiction between economic growth and environment will alleviate greatly.
Sulfuric acid corrosion off worthless material while leaving precious metals, and the cadmium, chromium, mercury, arsenic and waste acid liquid...quantity of those harmful substances discharged into the river, into the ground12.
Especially, the United States' new communications electronic equipment recycling regulations, put forward higher requirements to harmless design, harmless raw material supply and production technology of the electrical and electronic products.
References [1] Jirang Cui, Eric Forssberg, Journal of Hazardous Materials, Vol. 99(2003), p. 243-263 (In Chinese) [2] Qingzhong Bai, Hui Wang, Jie Han, etl, Techniques and equipment for environmental pollution control, Vol. 1(2001), p. 84-89 (In Chinese) [3] Mei Sun, Industrial & Science Tribune, Vol. 5(2009), p. 143-144(In Chinese) [4] Fine and Specialty Chemicals, Vol. 9(2009), p.14(In Chinese) [5] Xiaolong Hu, Xuezheng Wang, Social Scientist, Vol.142(2009), p. 73-76(In Chinese) [6] Fabin Lei, Recovery and Utilization of the Old and Waste Computer, Vol. 6(2004), p. 21-22(In Chinese) [7] Nongfu Shen, The peak of consumption caused the crisis of treating and waste computer rubbish pollution is serious, science and technology daily,2001/12/11, 009(In Chinese) [8] E-waste city - the Guiyu Phenomenon, China Environment News , 2010/06/06 (In Chinese) [9] Feng Zhang,  Science & Technology Ecnony Market, Vol. 9(2010), p. 70-71(In Chinese) [10] Yueqiong Su, The unfolding household

Materials Science Forum. 981. 3-10, 2020
Series: Materials Science and Engineering 290, 012043, 2018
Journal of Materials Science, Springer, 42, pp 6036-6040, 2007
Advanced Materials Research, 576. pp. 203-207, 2012
Key Engineering Materials, 181-182, p.231, 2000

O Box 2481 Tema Ghana, West Africa. 2 School Of Computer Science, Koforidua Polytechnic, Koforidua Ghana, West Africa.
Wang, "Acquisition of Swarm Intellegence (SI) Principle in Practice Teaching of Automation Disciplines," in Advanced Materials Research, 2014, pp. 4443-4446
Debnath, "Recent applications of fractional calculus to science and engineering," International Journal of Mathematics and Mathematical Sciences, vol. 2003, pp. 3413-3442, 2003
Engelbrecht, "A study of particle swarm optimization particle trajectories," Information sciences, vol. 176, pp. 937-971, 2006
Valenzuela, "Scheduling electric power generators using particle swarm optimization combined with the Lagrangian relaxation method," International Journal of Applied Mathematics and Computer Science, vol. 14, pp. 411-422, 2004

Introduction In the process of aluminum electrolysis production, the main goal of aluminium electrolysis enterprise is to maintain the material and energy balance of electrolytic pot, improve current efficiency and reduce the energy consumption.
It leads to the material balance and energy balance of electrolytic pot change constantly.
Experiment shows that, SPC can ensure the stability of aluminium electrolysis pot process parameters, keep the material balance and energy balance, improve current efficiency, and reduce the energy consumption.
Acknowledgments This work is supported by the Science and Technology Project of Beijing China; supported by the Fostering Talents of Beijing, China (2011D005002000001); supported by Scientific Research Common Program of Beijing Municipal Commission of Education (KM201210009005); supported by Funding Project for Academic Human Resources Development in Institutions of Higher Learning under the Jurisdiction of Beijing Municipality (PHR20100509); supported by National Natural Science Foundation of China (51075423).
(In Chinese) [7] M Dudek-Burlikowska, Journal of Materials Processing Technology, 2005, (162-163): 736-743

That is the seriation of externality, color, structure and materials of the products.
Only do the decorating materials change and other parts of the car keep uniformed size and mode, serialized cars with different engines and transmission cases can be fabricated to satisfied different customers.
Ding: Product Series Design-Electric Tools Series Design, (Nanjing University of Science and Technology, China 2004)
Zhou: Chinese Journal of Construction Machinery.
Deng: Journal of Engineering Graphics.

Relativity analysis on the detection methods of compaction degree for expressway subgrade Gui-juan ZHAO School of Architecture and Civil Engineering, Xi’an University of Science and Technology, Xi’an 710054, China guijuanzhao@126.com Keywords: Expressway;Subgrade;Compaction degree;Tetection;Sand cone method;Cutting ring method;Nuclear density instrument method;Drop hammer frequent measuration.
In addition,cutting ring method has narrower applicable, and it can't use in stabilized soil containing aggregates or loose materials.
Acknowledgement Fund project:Cultivation fund project of Xi’an University of Science and Technology（2010037） Summary Phone number:13571911645;13325466496 E-mail：guijuanzhao@126.com References [1] Fan Sheng-wei,Sun Li-da.Compaction Degree Detection of High Viscous Clay Building Roadbed.
Journal of shandong traffic university,Vol.15(2007),p.62-65 [2] Wei Chen.
[7] Wen Ming-cai,Gong Zai-qing.The Roadbed Compaction Degree Testing Methods and Equipment Research.Journal of Hunan City University.Vol.19 (2010),p.6-8

Metallurgy and Material Science, Ghent, Belgium 2 ArcelorMittal Research Industry Gent, JF.
We measure the damping caused by the movement of defects when a stress is applied (Internal Friction, Q -1), or more specifically, the tangent of the phase lag between an applied torsional stress and the response of the material.
Science Forum.
Houbaert: Journal of Magnetism and Magnetic Materials.
Verrijp: Journal of the iron and steel institute, January (1954), p. 24-27