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Ill-posedness and regularization method for nonlinear identification equations in time domain Xian Zhong Xie1, a, Feng Zhang1,b, Yang Li1,c, Yong Tan1,d 1School of Civil Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, China axianzhongx@163.com, bdaduizhang202@163.com, c187341467@qq.com, d365996451@qq.com Keywords: parameter identification, time domain, nonlinear equation, ill-posed problem, regularization method.
Tikhonov is the key scholars in early studies of ill-posed problems, and the regularization method[4] proposed by him in 60s has formed a relatively complete theory system, which has been widely used in solving variety of ill-posed problems[5,6].
The two wings of truss are completely symmetrical, and the mechanical or geometric parameters are listed in Table1, where is the density of material, is the length of member, is the axial stiffness of member, and is the angle between the axis of member and the x direction of global coordinates.

Stress Analysis and Strength Checking for High Pressure Gas Pipeline in the Earthquake Rupture Area Wei He 1, a Yandong Liu2, b and Guoxing Wang 3, c 1 146 He Ping Road, Lang Fang City, He Bei Province, China 2 48 Jian She Road, Lang Fang City, He Bei Province, China 3159 Guang Yang Road, Lang Fang City, He Bei Province, China a hew202309@126.com ,b Liuyd@cnpc.com.cn, c Wanggx@cnpc.com.cn Key words: High Pressure Gas Pipeline, Finite Element, Earthquake Rupture Area, Stress Analysis, Strength Checking Abstract: Based on the actual project example of high pressure gas pipeline crossing earthquake rupture area, the paper shows and explains the way to make stress analysis and strength checking calculation for the high pressure gas pipeline in the earthquake rupture area by the method of finite element. 1 Introduction Trunk gas pipeline use X70 LSAW steel pipe material and diameter of 711mm for the main line.
References [1] Ministry of Metallurgical Industry Construction Research Institute: Underground pipeline seismic calculation methods and engineering applications (2004) [2] YAPatel, Senior Analyst: Piping design in earthquake zone (1975)

Accordingly, the process of raising the temperature of the absorbed air is the key point to increase the effect of the air-circle temperature-rising technology.
In the further study, better material and more efficient design of the heat exchanger would be researched to make more use of the heat energy of the sea water.
Journal of naval aeronautical engineering institute,2006(6):657-661

Synchronized Diagnosis of Laser-pulse MAG Hybrid Arc Based on Multi-information Gao Ying1, 2, a, Han Jinghua 1, 2,b,Lou Liyan1, 2, c 1School of Mechanical Engineering, Tianjin University of Technology and Education, Tianjin, 300222, China 2Tianjin key laboratory of high speed cutting and precision Machining, Tianjin, 300222, China a gaoying@tju.edu.cn, b ning2002208@163.com, c Louly88@126.com, Keywords: Laser, Hybrid Welding, Pulse, Synchronization, Multi-information Abstract.
Arc Augmented Laser Processing of Material[J], J.

Research on the Synthesis Process of Ethylmaltol by Electrochemistry Jian-Jun Sun1, a, Mi Hao1, b, Long Wang1, c, Li-Hong Cui2, d 1College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China 2Department of Mathematics and Computer Science, Beijing University of Chemical Technology, Beijing 100029, China asunjj@mail.buct.edu.cn, b2010000060@grad.buct.edu.cn, c2011210022@grad.buct.edu.cn dCorresponding author: lhongcui@163.com Keywords: Ethylmaltol, Electrochemistry synthesis, Flavor enhancer.
Sigeru Torii et al presented an efficient synthesis of ethylmaltol employ ethylfurfuryl alcohol as a starting material by five steps[10].
The preparation of the key intermediate 1 from ethylfurfuryl alcohol was carried out by electrochemical oxidation and the resulting compound 1 was treated with perchloric acid to give hemiacetal 2, which refluxed with methyl orthoformate in the presence of magnesium sulfate to produce intermediate 3. 2-ethyl-4, 5-epoxy-6-methoxy-4H-pyran-3- one 4 was obtained by epoxidation of 3 treated with hydrogen peroxide in diethyl ether and aqueous sodium carbonate.

The research on pressure distribution was mainly focused on the two-dimensional model theory calculation, which ignored the material performance, external environment and load function[3,4].
The key reason of brake performance failure is that the radius of lining, internal diameter of brake drum and the position of support pin axis don't meet the conditions of entire contact, due to processing, assembling and abrasion during using, etc.
Gao：Equipment Management and Maintenance (2008) [7] S.Jin, Y.Xu and F.Lin：Automotive Engineering (2010)

Experimental Study and Models Comparison for Solute Transport Through Riparian Zones Zhou Chen 1, a, Jinguo Wang 1,b , Wenzhang Zhang 1,c and Jiahui Shi 1,d 1School of Earth Science and Engineering--NO. 1, Xikang Road, Nanjing, Jiangsu Province, 210098, P.R.China achenzhoucly@163.com, b wang_jinguo@hhu.edu.cn, cmj2009bb@163.coml, dhhushijiahui@163.com Keywords: Experimental study; Models Comparison; non-Fickian; Solute Transport; Riparian Zone.
Material and Method Experimental Setup.
Silt layer paly a key role in natural riparian system.

Selective oxidation of methane to methanol with organic oxidants catalyzed by iodine in non-aqueous acetic acid medium Yongshan Xiao1, Liyu Chen1, a, Runxia Lu1, Chengqian Tang1 1School of Chemical Engineering, Northwest University, Xi’an 710069, China achenly@nwu.edu.cn Keywords: selective oxidation; methane; methanol; non-aqueous acetic acid; organic oxidants Abstract.
Experimental Material The gases of CH4 (99.9%) and argon were provided by Beijing AP Gases Co., Ltd.
A key role of the selective oxidation of methane is to bond the methane that is formed as methyl ester, thereby retarding its further oxidation.

Baliga2,c 1State University of New York Polytechnic Institute Colleges of Nanoscale Science and Engineering, Albany, NY 12203, USA 2PowerAmerica Institute, North Carolina State University, Raleigh, NC 27695, USA awsung@sunypoly.edu, bkhan5@ncsu.edu, cbjbaliga@ncsu.edu Keywords: SiC, 4H-SiC, Junction Barrier Schottky (JBS) Diode, Floating Field Rings, Junction Termination Extension, Forward Voltage Drops, Reverse Blocking Leakage Current Abstract.
Introduction SiC is considered as a post-silicon semiconductor for power electronics applications because its superior material properties guarantee lower power losses, higher efficiency, and smaller system volume and weight.
The key performance criteria for SiC JBS diodes are the low forward voltage drop, low reverse leakage current, and high surge current capability. 600V-1200V rated SiC vertical JBS diodes have been developed, following a roadmap, to address aforementioned technical barriers [1].

Underground Space Construction by Explosive Loading in a Borehole Kazuyoshi Tateyama1, a , Shigeru Itoh2,b and Hironori Maehara3,c 1 College of Science and Engineering, Ritsumeikan University, Kusatsu, Shiga 525-8577, Japan 2 Shock Wave and Condensed Matter Research Center, Kumamoto University, Kumamoto 860-8555, Japan 3 Shock Wave and Condensed Matter Research Center, Kumamoto University, Kumamoto 860-8555, Japan a tateyama@se.ritsumei.ac.jp, b itoh@mech.kumamoto-u.ac.jp c maehara@shock.smrc.kumamoto-u.ac.jp, Key Words: shock wave, soil compression, underground space, experiments, numerical simulation Abstract: In cases where a borehole has been dug in the ground and subjected to an explosive load, the soil around the borehole wall will be abruptly compressed and a cavity will then be created in the portion of the ground that is surrounded by the compressed soil wall.
This means that the rod, compressed by the impact load, includes a section where the material is compressed in concentration.