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Materials and Methods 2.1.
Tshivhase, “Radon, Salinity and Elemental Concentrations of Water Sources within the Kuiseb and Cuvelai-Etosha Basin, Namibia,” Namibian Journal for Research, Science and Technology, vol. 1, no. 1, pp. 55–62, 2018, doi: 10.54421/njrst.v1i1.11
Tshivhase, “Radon, Salinity and Elemental Concentrations of Water Sources within the Kuiseb and Cuvelai-Etosha Basin, Namibia,” Namibian Journal for Research, Science and Technology, vol. 1, no. 1, pp. 55–62, 2018, doi: 10.54421/njrst.v1i1.11
Egun, “Utilization of Water Quality Index (WQI) in Water Quality Assessment of Groundwater in Agbor Metropolis, Delta State Nigeria,” International Science Technology Journal, vol. 10, pp. 48–55, 2017, [Online].
Egun, “Utilization of Water Quality Index (WQI) in Water Quality Assessment of Groundwater in Agbor Metropolis, Delta State Nigeria,” International Science Technology Journal, vol. 10, pp. 48–55, 2017

Experiment Experimental Material and Experimental Scheme Taking Changguang coal as the experimental coal type, CaO and MgO as the chemical analytical reagents, the analyses on coal characteristics and ash composition of Changguang coal are shown in Table 1 and 2.Sieve the coal powder of Changguang coal pulverized in the ball mill by square-mesh screen with 250 meshes, keep the granularity of coal powder under 61µm; Sieve CaO and MgO through square-mesh screen with 300 meshes, respectively, and keep the granularity under 49µm.
Acknowledgements The authors would like to acknowledgements Science and Technology Foundation of Henan Province (102300410088).
Journal of Zhejiang University, Engineering Science, 2003, 37(2):225-230
[3] JIAO Youzhou，LUO Zhongyang，SHI Zhenglun，et al.Journal of Zhejiang University (Engineering Science) ,2008,42(6):977-983
Study on Q-phase cement and Preliminary Study on Symbiotic relationship between Q-phase and aluminates [D].Hangzhou: Department of materials science and engineering, Zhejiang University, 2000: 23-50.

The Lifecycle Growth Trend and Demand Prediction of China Copper Industry Cheng Ma1,a,Weixuan Fang2,b 1Department of Land Resources Engineering, Kunming University of Science and Technology,Kunming,China 2Sino - Tech Minerals Exploration Co.
At the beginning of the economic society industrialization, the demand for raw material and energy is increased rapidly and stimulates the fast growth of consumption intensity of mineral products.
Both non-ferrous metal industry and steel industry belong to raw material industry.
Modern enterprise product life-cycle curve prediction model and its application, Journal of Zhengzhou University, vol. 1 (1999), p. 43-49
China's important mineral resource demand forecasting, Journal of the earth, vol. 6(2002), p. 483-490.

Introduction Hardness is an important indicator of the material mechanical properties and it has been widely used in the application of the component materials, coatings, new materials design and so on.
As a result, the blurred image indentation hardness measurements and its definition evaluation are essential in the material hardness measurement system.
Therefore, in connection with the characteristics of the Vickers hardness image, we intend to use the image gradient function as one of the image definition evaluation criteria of the Vickers hardness image of materials.
Evaluation of Gray Image Definition Based on Edge Kurtosis in Spstial Domain. 2009 First International Workshop on Education Technology and Computer Science, 472-475(2009)
CHINESE JOURNAL FO LASERS, Vol.36, No.1, p172-176(2009).

The die casting materials were the zinc alloy with the proportion of virgin and recycled materials of 40 to 60 wt%.
Recycled materials for the previous die casting process.
Materials and Methods Casting Materials.
Haouaoui, "Microstructural Evolution and Mechanical Response of Equal-Channel Angular Extrusion-Processed Al-40Zn-2Cu Alloy," Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, vol. 40, pp. 2772-2783, 11/01 2009, doi: 10.1007/s11661-009-9940-z
Yang, "The effect of casting temperature on the properties of squeeze cast aluminium and zinc alloys," Journal of Materials Processing Technology, vol. 140, no. 1, pp. 391-396, 2003/09/22/ 2003, doi: https://doi.org/10.1016/S0924-0136(03)00763-5

The material used for the plate is the plexiglas.
International Journal for Numerical Methods in Engineering, 2000,48;1549-1570
BeiJing:Science Publication,2009;120~125, 88~108
BeiJing:Science Publication,2009;69~80
Nonmetallic Material Handbook, 1985;2-40~45.

Product distribution during Datong Coal Pyrolysis and Hydropyrolysis Liu Quanrun1a, Xia Hao1b 1 School of Materials Science and Engineering, Henan Polytechnic University No.2001, Century Avenue, Jiaozuo City, Henan Province, China ·454003 1aLiuquanrun@gmail.com, 1b xiahao2799@163.com Keywords: coal; pyrolysis; hydropyrolysis; product distribution Abstract.
The liquid products involving tar and water out of the reactor were condensed in a glass bottle immersed in a cool trap at -15oC, and then the water in the liquid products was separated according to American Society for Testing and Materials (ASTM) D95-05e1, using toluene as a solvent.
Acknowledgment This work was supported by Province science and technology key projects of Henan (No.2009B440006) and Doctor Fund of Henan polytechnic university (648516).
Flash pyrolysis of brown coal for obtaining liquid and gaseous hydrocarbons, Journal of Chemical and Engineering, 1992, 43: 719～726

Currently, deicing salt is divided into two main categories [2]: the first kind is Chlorine salts (inorganic), which takes sodium chloride, calcium chloride, magnesium chloride, potassium chloride and other materials as the main components, adding or not adding rust inhibitor.
Deicing salt is chiefly made of salt materials, The melted snow containing salt can cause greatly damage to soil, plants, roads and bridges, transportation and equipment, from this cause great losses not only to the environment but also to the economic, the cost of the corrosion by chlorine salt on the environment can be accounted for 4 percents of GNP (Gross National Product).
Acknowledgements This work was supported by foundational research fund of Beijing University of Civil Engineering and Architecture (No.101003202)and climate change response’ Beijing research and education center(13) (No.PXM2013_014210_000122) References [1] Li H T, Yue G H, Wang C, Wang L, The damage and management of snowmelt agent, Journal of Green Science and Technology, 2011(11):109
[2] Zhang L Y, Xu H T, Zhang H Q, The norm analysis of solid deicing salt spreading cost in Jilin Province, Jilin Science & Technology of Communications, 2010(1):25

Introduction Plant disease serious threat to crop production, although the use of chemical pesticides effectively control the disease, improve the crop production environment, but using those chemical materials throughout the year has led to increase disease and insect resistance, environmental pollution problems and even threaten human health [1].
Materials and Methods Strains and Culture Conditions Trichoderma asperellum T4 (CGMCC3.14975) and the plant phytopathogens Rhizoctonia solani, Fusarium oxysporum, Alternaria alternata and Cytospora chrysosperma were all cultured at 28 °C on PDA media until sporulation.
Acknowledgement This project was financially supported by the natural science foundation of Heilongjiang province (C201118).
[2] Anjaiah V, Thakur R P, Koedam N, Evaluation of Bacteria and Trichoderma for Biocontrol of Pre-harvest Seed Infection by Aspergillus flavus in Groundnut, Biocontrol Science and Technology, 16 (2006) 431-436
Indian Journal of Microbiology, 52 (2012). 388-395

Duongruitai Nicomrat1a* Korakote Hanthanyagram1b, Apinyaporn Saithong1c, and Thanatcha Wongjaeng1d 1Division of Environmental Sciences and Natural Resources, Faculty of Science and Technology, Rajamangala University of Technology Phra Nakhon, Bangkok, 10800, Thailand aduongruitai.n@rmutp.ac.th, benvir_04@hotmail.com, chumbin_meen@hotmail.com, dwonderful_sone@hotmail.com Keywords: Carbon dioxide, Chlorella sp., Biogas Abstract.
Materials and Methods Algae species and cultivation.
The best feeding materials for the algae growth was homemade feeding of food formula 4 The formula 4 and control had cell density at 4-5 log Units whereas the commercial one had at 6 log Units (Fig. 2).
Cao, Experimental analysis and novel modeling of semi-batch photobioreactors operated with Chlorella vulgaris and fed with 100% (v/v) CO2 Chemical Engineering Journal 213 (2012) 203–213