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Nowadays, cement composites often contain a certain amount of waste materials, which can lead to increased heavy metals leaching.
Thus there is a need to evaluate the concrete materials containing waste for their environmental performance.
The microstructure of concretes containing waste materials is likely to change considerably as the material ages due to the effects of carbonation, leaching, etc.
Methods and material The following materials have been used to produce the testing samples: Portland cement CEM I 42.5 N, waste additive based on slag and aggregates from local source.
Visvanathan, Assessment of heavy metal contamination and its mobilization from municipal solid waste open dumping site, Journal of Hazardous Materials. 156/1–3 (2008) 86-94.

The fracture toughness measurement is performed by means of CNB which is an established test for ceramic materials [2].
The other raw materials are three different carbon sources and additives.
Ceramics: mechanical properties, failure behaviour, materials selection (Vol. 36).
Springer Science & Business Media
International Journal of Fracture, 16(3), R137-R141

The material balance, consonance plan, emergency management, production cost management are the core services of production scheduling management.
Acknowledgement The work was supported by Graduate Teaching Reform Project of Beijing Information Science and Technology University (Grant No.
[3] Wang Junsheng, Shi Yunmei, Zhang Yangsen, Research on Key Technology of Distributed Search Engine Based on Hadoop, Journal of Beijing Information Science and Technology University, vol.26, no.4, pp.25-28 (2011) [4] Liu Jianbin, Li Jianzhong, Research on the Improvement of a Duplicate Code Detection Technology, Journal of Beijing Information Science and Technology University, vol.24, no.3, pp.44-49 (2009) [5] Li Baoan, Zhang Wei, End-to-End Resources Planning Based on Internet of Service.
Springer: Lecture Notes in Computer Science, v 6988 LNCS, PART 2, pp.19-26 (2011) [6] Li Baoan, Research on the Production Scheduling Management System Based on SOA.
Journal of Communication of China Computer Federation, vol.6, no.9, pp.10-11 (2010)

Analysis of Government Role in the Development of Rural Low-Carbon Economy Hongyuan Guo1,a*, Nannan Zhang2,b* and Yongli Cao3,c 1Department of Science and Research, Shenyang Normal University, Shenyang 110034, China 2College of Vocational and Technology, Shenyang Normal University, Shenyang 110034, China 3Faculty of Humanities, Tieling Normal College, Tieling 112000, China aemail: ghyuancn@yahoo.cn, bemail: zhangnannande@yahoo.cn, cemail: caovszhao@163.com Keywords: government role, rural low-carbon economy, development Abstract: This paper first defines the elements and meaning of rural low-carbon economy.
The government should increase low-carbon economy propaganda, improve the quality of farmers and the ideological understanding, especially cultural quality, science and technology quality and social ethics by way of training and education, promote farmer to set up the ecological awareness and environmental consciousness, and advocate ecological civilization while advocating material civilization and spiritual civilization .
Acknowledgements This work was financially supported by Natural Science Foundation of Liaoning province (201102204), Science and Technology Bureau of Shenyang city (112174), and Liaoning Province Federation of Social Sciences (20111s1ktjjx-112), References [1] Shengshan Gu: China Environment Daily, June 4, 2010, In Chinese [2] Hefang Xiao: Science and Technology of Qinghai Agriculture and Forestry, 2010(4), In Chinese [3] Yongchang Wu, Zhiquan Hu: China Population, Resources and Environment, Vol.20, No.12, 2010, In Chinese [4] Pigou:Welfare economics (Beijng: Huaxia Publishing House, 2007)
[5] Xiaochun Chen, Juan Tan: Journal of Xinan University for Nationalities, 2011(8), In Chinese [6] Haijuan Yang, Jinmei Ke: Journal of Anhui Agri.Sci.2011, 39(34):21440-21441, In Chinese [7] Bin Li: Journal of Liaoning Administration College, Vol.12.No.12, 2010, In Chinese

Acquisition system of AE signal To simulate crack propagation, four experimental shafts which are the same material model have been prefabricated.
Acknowledgement Financial support from National Natural Science Foundation of China (51075140), Natural Science Foundation of Hunan Province Key Project (09JJ8005), Project Sponsored by the Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry, Science and Technology Planning Key Project of Hunan Province (2010FJ2012), Aid program for science and technology innovative research team in higher educational institutions of Hunan province, are gratefully acknowledged.
[6] M.J.Zhang, S.P.He, et al: Journal of PLA University of Science and Technology Vol.2-1(2001).
[7] X.S.Yao, Y.X.Zhang, et al: Journal of Naval University of Engineering Vol.22-2(2010).
[8] H.Y.Hai,J.Y.Luan, et al: Journal of Vibration, Measurement & Diagnosis Vol.27-3(2007).

The substrate of the tool material was high speed steel (1.4%C).
In surface modification technology, hard materials such as ceramics are coated onto the surface of other material.
In addition, an effective tool material must be identified.
Yoshihara, Masakazu Hirano and Takehiko Eto: Journal of Japan Institute of Light Metals, Vol.51, No. 4(2001), p. 238 [2] T.
Fujiwara: International Journal for Manufacturing Science & Technology, Vol.5, No.2, 2003/2004, p. 39 [3] A.Kamio: Japan Institute of Light Metal (Tokyo, 1991), p. 231.

The concrete mixing ratio is 132 : 267 : 856 : 1052 : 47 : 3.5 of water, cement, fine aggregate (sand), coarse aggregate (crushed stone), cementitious materials (fly ash) and chemical admixture (ZK-9011).
Acknowledgements "The 11 th-Five-Year Plan" National Key Technologies R&D Program (2006BAJ03A10-02) and Shanghai Science and Technology Commission Program (04-033) provided financial support to this research.
ACI Materials Journal, 91(3), 227-236
ACI Materials Journal, 91(4), 339-348
ACI Materials Journal, 91(5), 460-470

Materials and Methods Fibre-Reinforced Composites.
Fundamentals of Composites Manufacturing: Materials, Methods and Applications : Instructor's Guide.
"Ultrasonic signal classification and imaging system for composite materials via deep convolutional neural networks".
com/science/article/pii/S0925231217301522
In: Applied Composite Materials (2022), pp. 1-19

Characteristics of Rayleigh Wave According to elasticity of the elastic wave dynamics[3] and material can be determined longitudinal waves, shear waves, Rayleigh surface wave and medium elasticity coefficient has the following relationship: ,, (1) Fig.1 Rayleigh wave speedand Poisson ratio diagram The relation between and is shown in Fig.1.
[2] Shiming Wu: The soil medium wave, Beijing science press, 1997, p.135-184
[3] Tangdai Xia, Yongsheng Hu, Shunqun Yang, etc: Rayleigh potter road structure and dynamic response analysis, Journal of Zhengzhou university of technology, 2000, 21 (1), p.19-22
[4] Yunmin Chen, Shiming Wu, Tangdai Xia: With surface wave spectrum analysis method to detect the quality of road structure, Journal of Zhejiang university, 1993, 27 (3), p.309-314
[5] Tangdai Xia, Yunmin Chen, Shiming Wu: Homogeneous soft interlayer Rayleigh wave dispersion characteristic of foundation, Journal of vibration engineering, 1993, 6 (1), p.42-50.

Extended Mohr-Coulomb criterion [4] where the fracture strain with use of J2 plasticity is: , (3) where E1 and E2 are calibration constants and K is stress amplitude related to a material plasticity.
Bai: Calibration and evaluation of seven fracture models, International Journal of Mechanical Sciences, vol. 47 (2005), pp. 719-743
Wierzbicki: A new model of metal plasticity and fracture with pressure and Lode dependence, International Journal of Plasticity, vol. 24 (2008), pp. 1071-1096
Wierzbicki: Application of extended Mohr–Coulomb criterion to ductile fracture, International Journal of Fracture, vol. 161 (2009), pp. 1-20.