Search results

Coffee is one of the world's three drinks ,which can also be used as lightweight materials and food, also can be the world's second largest export commodity[2].
Materials and equipments: the five numbered samples (10cm×10cm); ammonia (0.88g/ml); solid sodium hydroxide; glass dish; cylinder; 60W fluorescent; indoor air detector; rapid ammonia detection tube ; rubber tube; scotch tape; sealed cartons.
Lai:Guangxi Textile Science & Technology, Vol. 39 (2010), p.24
Zhang , L.Li :Journal of Xi'an Polytechnic University, Vol. 8 (2009), p.3
[5]S.D.Wang: Ninth bird knitting industry, new materials technology promotion and application of boron Seminar Proceedings,2008

Microstructural Characterizations of Ultra-high Strength Steel Bars Mengyang Chena, Boming Hwuangb, and Jerren Yangc Institute of Materials Science and Engineering, No. 1, Sec. 4, Roosevelt Rd., Da-an Dist., Taipei City 10617, Taiwan (R.O.C) af97527037@ntu.edu.tw, bd98527005@ntu.edu.tw, cjryang@ntu.edu.tw Keywords: inter-phase precipitation; pearlite; yield strength; transmission electron microscopy (TEM); stress-strain curves.
These two features are useful for construction engineers to choose the suitable materials to meet different requirements.
A flat yield plateau means the onset of work hardening would occur later, which helps engineers predict the time after which materials start to fail, and prevents materials from starting to be hardened immediately after yielding [1].
The amount of strain can rise to 1.4% before the onset of work hardening, which assures sufficient deformation before failure of the materials.
Bhadeshia, Welding Journal 69 (1990) S305

Radionov and others, Software for automated calculation of source saving routes and hardening while carbon wire drawing, Materials science and thermal metal treatment: Internat. col. scient. works.; edit. by A.N.
Radionova, Technology production of high-strength wire with high plastic properties, Sworld collection of scientific works based on materials of interational scientific practical conference. 6(1) (2013) 12-16
[10] Sy-Wei Lo, Yuung-Hwa Lu, Wire drawing dies with prescribed variations of strain rate, Journal of materials processing technology, 123 (2002) 212-218
Luri, Comparison between finite element method and analytical methods for studying wire drawing processes, Journal of materials processing technology. 164-165 (2005) 1218-1225
Sebastian, Calculation of the forward tension in drawing processes, Journal of Materials Processing Technology, 162-163 (2005) 551-557

Because of its widely raw materials, low price, non-toxic, and high whiteness, it has been widely used[1].
Nano-sized calcium carbonate is developed in the 1980s as a new type of ultrafined solid materials.
It is a new type of high-grade functional inorganic materials since its particle size is between 1 ~ 100 nm and its activity is good.
[2] Zhang Shi-cheng, Han Yue-xin, Jiang Jun-hua, WANG Hong-kuan, Studies on the Crystallization of Nano Calcium Carbonate in the Reaction System Ca(OH)2-H2O-CO2,Journal of Northeastern University(Natural Science),Vol2,No.2,Apr,2000
[5] Lin Rong-yi, Zhang Pei-xin, Yan Jia-qiang, Chinese Journal of Materials Research,Vol.13,No.6,Dec,1999.

With the continuous development of science and technology, new materials, nano-aluminum powder came into being, and became more and more popular in the production and the daily life.Domestic and foreign scholars in this field also carried out extensive researches on the explosive characteristics of aluminum powder, which include the mechanism of dust explosive, explosive characteristics and its influencing factors, numerical simulation and dust explosive prevention and protective measures.
Only when the combustible materials burn out, the explosive pressure and the flame propagation speed will reduce and decrease slowly, and then tend to level off, and finally return back to the normal status.
LI, Ordnance Journal, Vol. 19 (1998) No.2, p.176
Ordnance Journal, Vol. 16(1995), No.3, p.59
Energetic Materials, Vol. 11(2003), No.2, p.91

Ultrahigh Plasticity Behavior of Metallic Materials in the Ultra-High-Cycle (or Gigacycle, Very-High- Cycle,) Fatigue Regime A.
The surface and interior zones of metallic materials differ in the order of atomic arrangement [19, 20].
International Journal of Fatigue, (2012) (in press)
Physical meso-mechanics and non-equilibrium thermodynamics as a methodological basis for nano-material science.
Key Engineering Materials, 465 (2011), pp.511-514

Materials and Methods Pump characteristic equation.
LGG21E090002), the China Postdoctoral Science Foundation (No. 2021M691383), and the Zhejiang Provincial Science and Technology Program (No. 2021C01052).
Xing, Hydraulic pump automatic test system based on C/S structure, Journal of Physics: Conference Series, 2005 (2021) 012238
Agashe, Implementation of Modbus RTU and Modbus TCP communication using Siemens S7-1200 PLC for batch process, 2015 international conference on smart technologies and management for computing, communication, controls, energy and materials (ICSTM), Avadi, India, May 06-08, (2015), 258-263
C. de Carvalho Miranda, Construction and operation of a modular didactic unit for Proportional-Integral-Derivative (PID) level control in tank, The Journal of Engineering and Exact Sciences, 9(6) (2023) 16184-01e

The assessment of grassland ecosystem services value with GIS technology in HulunBuir city of China Ruijie WANG 1,a, Lianwei YANG 2,b, Miao Jia 3,c 1 Department of Environment  Science and Technology, Northeastern  University at Qinhuangdao Branch, Qinhuangdao 066004, China 2 Department of Material Science and Technology, Northeastern  University at Qinhuangdao Branch, Qinhuangdao 066004, China 3 Department of Foreign Language, Northeastern University at Qinhuangdao Branch, Qinhuangdao 066004, China aemail: ruijiewang@163.com; bemail: yllwo@126.com; cemail:miaojiamail@163.com Keywords: ecosystem service value, grassland ecosystem, GIS technology, HulunBuir city Abstract :The grassland ecosystem of HulunBuir city is an important component of ecology security system in Northeast China.
Journal of environmental management. vol.45(1995),p.333
Journal of Anhui Agri.
Science in China Ser.
D Earth Sciences, vol.34(2004),p.375 [14] W.J.

The P-V modified model and experiment of landfill gas generation rate Liu Lei1,2,a, Fan Zhihua3,b, Xue Qiang1,c, Li Jiangshan1,d 1Institute of Rock and Soil Mechanics, The Chinese Academy of Sciences State Key Laboratory of Geomechanics and Geotechnical Engineering, Wuhan,430071, Hubei, China 2Key Lab of Biogeology and Environmental Geology of Ministry of Education, China University of Geosciences, Wuhan 3School of Mechanical Engineering, Hangzhou Dianzi University, Hangzhou 310018,China; algdliulei@163.com, bfanzhihua@163.com, cmilson_xq@163.com, dcersm@163.com Keywords: landfill gas; P-V modified model; biodegradation; gas production; gas generation rate Abstract.
Materials The organic fraction (the readily, moderately, and the slowly biodegradable fractions) of the waste sample is respectively, 55%, 30% and 15%.
Table 2 The result of production rate constant test k（day-1） Stage 1 Stage 2 Stage 1 Stage 2 Case A 0.01512 0.0317 0.76 0.94 Case B 0.00792 0.0181 0.81 0.90 Case C 0.00756 0.0145 0.79 0.83 Acknowledgments This research was supported by the and Special Fund for Basic Research on Scientific Instruments of the National Natural Science Foundation of China (50927904) and the National Basic Research Program of China(973 Program)(2012CB719802) and the Young Scientists Fund of Main Direction Program of Knowledge Innovation of Chinese Academy of Sciences (KZCX2-YW-QN114) and National Natural Science Foundation of China (50874102) and the Major Program of Special Funds for Scientific Instruments of the Chinese Academy of Sciences (YZ200942) and the Open Research Program of the Key Lab of Biogeology and Environmental Geology of Ministry of Education (BGEG1008) References [1]Landfill Gas Emissions Model Version 2.0(User's Manual).
Journal of Chemical Induestry and Engineering , 59(3): 751-755（In Chinese） [6]G.
China Environmental Science, 28(8): 730-735（In Chinese） [9] Jiajun Chen, Hao WANG, Na ZHANG, et al. 2008.

L, Ding4 1 College of Water Conservancy and Hydropower Engineering, Hohai University Nanjing, China 2 Three Gorges Corporation, Yunnan kunming , China 3 College of Water Conservancy and Hydropower Engineering, Hohai University Nanjing, China College of Mechanics and Materials,Hohai University Nanjing, China alssznl@163.com Keywords: Hydraulic characteristics; numerical simulation; energy dissipater with step-down floor.
Acknowledgements This work was financially supported by the National Science Fund for Distinguished Young Scholars (No. 50925932) and National Natural Science Foundation of China (No. 51279047).
[2] Gao Jizhang, Li Yongmei,Liu Peiqing, in: submitted to Journal of Hydraulic Engineering, (1999) [3] Li Yanling, Hua Guochun, Zhang Jianmin: Advances in Water Science, Vol. 17 (2006), p. 761
[4] Deng Jun, Xu Weilin, Zhang Jianming,in: A New Type of Plunge Pool—Multi-horizontal Submerged Jets, edited by Technological Sciences, Science in China (2008), p.2128
Science Press, (2006),in press.