Search results

Research on the environmental geochemistry characteristics of heavy metals in contaminated industrial fields Hou Wei1, Yang Yongwei1, Wu Dan1*, Li Shuxian2, Wang He3, Ji Lan2 1College of Environmental Science, Liaoning University, Shenyang 110036, China 2Shenyang Academy of Environmental Sciences, Shenyang 110016, China 3Liaoning Academy of Environmental Sciences, Shenyang 110161, China *corresponding author: lnuwudan@126.com Key words：Heavy metal pollution; Contaminated industrial fields; Ecological assessment Abstract： Using the single factor index method and comprehensive pollution index method, the heavy metal pollution situations of 60 points (128 field samples) from a coke-gas factory which is located in the north of China were evaluated, as well as the site sources of pollution were analyzed.
Materials and methods The study area.
Acknowledgments: This research is supported by NSFC (Natural Science Foundation of China (31100349) References [1] GENG Ting-ting，ZHANG Mim，CAI Wu-tian.
Environmental Science & Technology, 2011, 34(6):343- 346
Journal of Zhejiang University(Science Edition),2003,30(1):103~108.

Materials and Methods Animals and surgery.
Howlett: Key Engineering Materials Vol. 254256 (2004), p. 447-450 [5] H.
Shakibaei: Journal of biomedical materials research Vol. 62 (2002), p. 175-184 [6] G.
Song: Corrosion Science Vol. 49 (2007), p. 1696-1701 [7] F.
Kruger: International Materials Reviews Vol. 38 (1993), p. 138-153

Am: Chemistry of Materials, Vol. 50 (2011) No.26, p.5947
Lieber: Science, Vol. 73 (2001) No.41, p.1711
Lieber: Chemistry of Materials, Vol.33 (2011) No. 23, p.2457
Ruda: Journal of Colloid and Interface Science, Vol. 41 (2002) No.14, p.2590
Bello: Advanced Functional Materials, Vol. 115(2008) No.3, p.497

Experimental 2.1 Used Materials 2.1.1 Cement An artificial Portland cement CEM I 52.5 CP2 in accordance with European standard EN 197-1 [9] has been used.
VHPC Formulation by the Method of Grout This method offers some economic benefits but it requires very small quantities of materials [14].
Aïtcin "Developments in the application of high-performance concrete", Construction and Building Materials, 9 (1), (1995), 13-17
Sullivan "Mechanical properties of hardened cement paste exposed to temperatures up to 700c (1292f)”, ACI Materials Journal, 87(2), (1990), 160-166
Thèse de Doctorat, Génie civil, Institut National des Sciences Appliquées de Lyon France, (1995)

Singh et al. [9] introduced a low-cost integrated measurement system that combines a camera and ultrasonic sensor for examining raw materials and in-process machined components on the shop floor with an overall measurement inaccuracy of ±1mm.
Ngai, “Quality management in the 21st century enterprises: Research pathway towards Industry 4.0,” International Journal of Production Economics, vol. 207, pp. 125–129, Jan. 2019, doi: 10.1016/j.ijpe.2018.09.005
Dubey, “Scope and prospects of non-invasive visual inspection systems for industrial applications,” Indian Journal of Science and Technology, vol. 9, no. 4, pp. 1-11, 2016
Lee, “Deep Neural Network for Automatic Image Recognition of Engineering Diagrams,” Applied Sciences, vol. 10, no. 11, Art. no. 11, Jan. 2020, doi: 10.3390/app10114005
Wu, “Deep learning for smart manufacturing: Methods and applications,” Journal of Manufacturing Systems, vol. 48, pp. 144–156, Jul. 2018, doi: 10.1016/j.jmsy.2018.01.003

Materials and Methods Isolation, culture and characterization of hUCMSCs.
The isolated hUCMSCs displayed the potential to differentiate along adipogenic and osteogenic lineages after treatment with the respective differentiation protocols described in Materials and Methods (Fig. 3).
First, synthetic matrix materials with the same crosslinking degrees can have distinct modulus due to lack of unified effective representation and measuring methods.
Lin, Crosslinked chitosan: Its physical properties and the effects of matrix stiffness on chondrocyte cell morphology and proliferation, Journal of Biomedical Materials Research Part A. 75A(2005) 742-753
Boyan, Integrin alpha(5) controls osteoblastic proliferation and differentiation responses to titanium substrates presenting different roughness characteristics in a roughness independent manner, Journal of Biomedical Materials Research Part A. 80A (2007) 700-710

In laser cutting of glass with controlled fracture, thermal stress induces a fracture and the material is cleaved along the cutting path by fracture propagation.
Small tensile stresses on the top and bottom surfaces will make the material separate from up and down to middle, whereas the compressive stresses in the middle ensure stable fracture propagation.
This method usually causes many defects such as chips formation, irregular cut path, micro-cracks and even broken material [1].
Small tensile stresses on the top and bottom surfaces will make the material separate from up and down to middle, whereas the compressive stresses in the middle surface ensure stable fracture propagation [5].
Liou: ASME Journal of Manufacturing Science and Engineering, Vol. 125 (2003), pp.519-528.

Study on Utilization of Biomass in Light-weight Aggregate Production Runzhu Tiana, Zhengwu Jiangb, Qingyun Huangc and Zhenghong Yangd Key Laborary of Advanced Civil Engneering Materials of Ministry of Education , Tongji University,Shanghai,201804,China athx024@163.com, bjzhw@tongji.edu.cn, c812816278@qq.com,dyzh@tongji.edu.cn Keywords: Biomass fuel, Light-weight aggregate, Energy saving.
If the combustion temperature can be elevated to above 1400°C,even up to 1800°C, biomass fuel will be widely used in sintered construction materials production.
It can be predicted that biomass fuels will be implicated more and more in material sintered construction material production in the future.
Acknowledgements The authors gratefully acknowledge the financial supports provided by National Natural Science Foundation of China (GrantNo.51078269), National Basic Research Project of China (2001CB610704), National Key Technology R&D Program of China (2011CB013800), State Key Laboratory of High Performance Civil Engineering Materials and Kwang-Hua Fund for College of Civil Engineering, Tongji University.
Siagib, Combustion of agricultural residues, Progress in Energy and Combustion Science. 26 (2000) 1-27 [17] H.L.

The near crack tip stress, crack tip opening displacement and crack tip plastic zone size were obtained for a kinematic hardening material.
Silva [2-4] found that for several materials the compressive part of the fatigue load cycle plays a significant role on fatigue crack propagation and the concept of fatigue crack closure is not adequate to properly describe fatigue crack growth rate at R<0.
This indicates that the material immediately in front of the crack tip has yielded in compressive.
The increase of the reverse plastic zone size indicates that the compressive stress continues to damage the material .
Du International Journal of Fatigue Vol.27(2005), p.1314 [14] J.

Journal of Chongqing Jianzhu University [J].2008.5 .in Chinese [2] Sun Jingjiang  Ma Qiang  Shi Hongbin  Sun Zhongxian: Building damage in cities and towns located in higher intensity areas during Wenchuan earthquake.
Journal of Xi’an University of Architecture and Technology[J].2009.5.in Chinese [4] Zhou Tie-gang,Zhao Dong.
Journal of Xi’an University of Architecture and Technology[J].2008.5.in Chinese [5] Song Zhan-ping,Zeng Ke, Han Xiao-lei,Xu Lei.
Journal of Xi’an University of Architecture and Technology[J].2008.5.in Chinese [6] Shi Qing-xuan,Yang Kun,Wang Qiu-wei,Men Jin-jie.
Journal of Xi’an University of Architecture and Technology[J].2008.5.in Chinese