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Assuming that the number of oil formation is m, a well passes through the formation and each layer of the oil formation is fractured and (1) the rock is elastic brittle material, the rock cracks as the tensile stress is greater than a certain limit value; (2) the height of the fracture keeps the same along the whole fracture length, only the fracture width changes；(3) the flow in the fracture is laminar flow; (4) the fracture end pressure is equal to the total stress (the stress direction is perpendicular to the fracture wall); (5) neglecting the fracturing fluid loss; (6) neglecting the influence of proppant on fracture closure.
The equation of fracturing fluid loss volume can be derived according to the material balance principle and Darcy's Law: (4) where, m—the grid number of fracture；kd — the formation permeability, μm2；h—the height of fracturing fluid loss，m；Δy1—the grid length of first row at y direction，m；lxi— the grid length of x direction fracture，m. 3.
Acknowledgements This article was supported by the National Natural Sciences Foundation (No. 51204193) in China.
S.: Journal of petroleum technology Vol. 40 (1988), p. 753-759 [3] Ely, J.

In current study the elements used to simulate the blank is VISCO 107,the contact elements is CONTA 174, and target element is TARGE 170.The material of sheet metal is aluminum alloy 1060,which is extensively used in aircraft outer skin productions.
[4] Li M.Z., Cai Z.Y., Sui Z. and Yan Q.G., "Multi-point Forming Technology For Sheet Metal", Journal of Material Processing Technology,vol.129,pp.333-338,(2002)
[9] Nakasone Y. and Yoshimoto S.," Engineering Analysis With ANSYS Software", Department of Mechanical Engineering, Tokyo University of Science,(2006).

Although alternative ceramic materials can improve cell performance, the established materials are globally sufficient for adequate power output.
The Ni/YSZ anode material is suited for applications with YSZ material, whereas Ni/SDC and Ni/GDC anode materials are best used with ceria-based electrolyte materials.
Tian: Journal of Hydrogen Energy Vol. 28 (2003), p. 889 [5] S.M.
Irvine: Nature Materials Vol.2 (2003),p. 320 [41] P.
Baroux: La Revue de Métallurgie -CIT/Science et Génie de Matériaux.

As the value created by other material production sectors is deducted during calculation and only the new value created by industrial sectors is reflected, it gives a truer picture of development situation of industrial sectors compared to total industrial output value.
Environmental Science, 2006, 27(4):609 [9] Long, A.
Resource Science, 2005, 27(5), 96-99 [12] Melaku Ayalew.
[J]Internet Journal for African Studies,1997,2(2)：4-9 [13] Zou, J., Y.R.
Journal of Beijing Normal University (edition of natural science), 2006, (06) [15] Deng, X.J., S.Y.

Influences of Organic Compounds on Laccase Activity Tests Zhang Yinglong1, 2,Zhang Haibo2, 3 , Zhu Youshuang2,4, Cao Mingle2 , Ai Mingqiang 2 , Huang Feng2 1 Biotechnology Department, Shandong Institute of Commerce and Technology, Jinan 250103, China. 2 State Key Laboratory of Microbial Technology, Shandong University, Jinan 250100, China. 3 Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266071, China. 4 School of Biology Science, Jining Medical University, Jining 272067, China Key words: substrate; laccase; inhibitor; Trametes hirsuta; Rhus vernificera Abstract.Organic compounds oxalic acid and ethylenediaminetetraacetic acid disodium salt-2-hydrate (EDTA Na2) were described as laccase inhibitors by forming complex compounds with the metal ions of the laccase.
Material and methods Chemicals and laccase Laccase from Trametes hirsuta lg-9 was purified and characterized by our laboratory as preciously described.
Journal of Physical Organic Chemistry. 17(2004) , p.973-977
Cellular and Molecular Life Sciences (CMLS).29 (1973), p.381-387
Journal of Biotechnology.78(2000), p.193-199.

Acknowledgement This project supported by the National Natural Science Foundation of China (No.51178089 and No.21107011).
Journal of Chemical Technology and Biotechnology, 2008, 83:269-278 [8] E.
Enbiromental science. 2008, 29(4): 1002-1006, Chinese
Journal of Chemical Technology and Biotechnology. 2008, 83:269-278 [19] U.
Critical Reviews in Environmental Science and Technology, 2007, 37:277-313

This condition can be caused by several factors, such as the quality of infrastructure, material composition, and detailed information related to the subsurface soil structure as a supporter of road infrastructure  [7].
Ismail, Investigation of Aceh Segment and Seulimeum Fault by Using Seismological Data; A Preliminary Result, in Journal of Physics: Conference Series, Vol. 1011 (2018), p. 012031
Munir, and Marwan, The Electrical Resistivity Tomography Technique for Landslide Characterization in Blangkejeren Aceh, in Journal of Physics: Conference Series (2021)
Surbakti, The 2D Resistivity Modelling on North Sumatran Fault Structure by Using Magnetotelluric Data, in IOP Conference Series: Earth and Environmental Science, Vol. 364 (2019)
Ibrahim, Determination Asphalt Layer Using Ground Penetrating Radar (GPR), in IOP Conference Series: Earth and Environmental Science, Vol. 1051 (IOP Publishing, 2022), p. 12005

At first, the response of the non-damped rail coupon is analysed to identify the stiffness of the rail pad and adjust the rail material constants.
Acknowledgments This work was supported by a grant of the Romanian National Authority for Science Research and Innovation, UEFISCDI, project number PN-III-P2-2.1-PED-2016-0748, within PNCDI III.
Cruceanu, Journal of Engineering Science and Technology Review 10, 6, (2017) 87-95
Official Journal of the European Communities (2002)
Thompson, Railway Noise and Vibration: Mechanisms, Modelling and Means of Control (Elsevier Science, Great Britain (2009)

Analysis of Elastic-Plastic Responses of a Water Tower Structure during an Earthquake Based on the Transfer Matrix Method of Multibody System Huijia Huang1,a, Jianguo Ding1,b, Zhi Qiao1,c 1School of sciences, Nanjing University of Science and Technology, Nanjing, 210094, China ahuanghuijia@yeah.net, bnustdjg@163.com, cqiaozhi1987@gmail.com Keywords: MS-TMM; water tower; elastic-plastic response; earthquake; ANSYS Abstract: As a member of the city life lines, water towers are still widely used as an outdoor device to supply water.
The height of support structure is 30m; the strength grade of concrete is C35; the Poisson's ratio is 0.2; the radius of the wall is 1.6m and the thickness is 0.18m; modulus of elasticity is 3.12×104MPa; density of material is about 2400kg/m3.
(Science Press, Beijing 2008)
Wang: submitted to Journal of Multi-Body Dynamics (2011)
Hu: submitted to Journal of Vibration Engineering (1997)

Introduction As for concrete, size effect is a basic characteristic of brittle and quasi-brittle materials, main manifestation is the rupture is enlarge with the structure size increases, meanwhile, strength is minish.
Acknowledgment The project was supported by Key Laboratory of Efficient & Clean Energy Utlization,College of Hunan Province,Changsha University of Science and Technology References [1] Guochengju,physics and chemistry of concrete [M].
Materials and Structures,1999,32: 210～217
Journal of Engineering Mechanics, ASCE, Vo1.123, No.2, 1997
Material Structure, 1995, 28(7), 311-317.