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Transformers are the key equipment to guarantee the electric power transmission and reduce the power loss.
In long-term theoretical research and engineering practice, many effective technical methods were accumulated and many achievements were obtained in fault diagnosis field of transformer.
The magnetostriction of silicon steel sheet has relationship between external magnetic field and the temperature of the material.
High Voltage Engineering, 2007, 33(11): 209-212

Failure Analysis of Kelly Cock Valve used in Drilling Process Xun Zheng1, a, Jingen Deng1, b, Haiyan Zhu1, c, Shujie Liu2, d, Wenlong Zhao3, e, Mihua Zhang4, f 1 MOE Key Laboratory of Petroleum Engineering, China University of Petroleum, Beijing, China; 2 China National Offshore CORP., Beijing, China; 3 Great Wall Drilling & Exploration Engineering Corporation CNPC, Panjin, Liaoning, China; 4 Outling Oilfield Developing Company of Petrochina Qinghai Oilfield, Dunhuang, Gansu, China.
Fig.7 Von Mises stress of main body Fig.8 Velocity field of the fluid Conclusion The main failure factors of a kelly cock valve can be divided in four parts: material properties, sealing problems, operation problems, inspection and maintenance.

Feng Institute of Electro-Optical Engineering, Department of Electronic Engineering, Chang Gung University, Kweisan, Taoyuan 333, Taiwan R.O.C.
It is also necessary to prevent variation in the turn on voltage from leading to current variation in the OLED material.
This LTPS crystallization method would be one of the key technologies in the development of mass production process in LTPS TFT backplane for AMOLED.

Sirilis2 and Douglas Taylor3 1Department of Civil and Environmental Engineering and Mechanical Engineering and Material Science, Rice University, Houston, Texas-77005, USA 2Department of Civil, Structural and Environmental Engineering, University at Buffalo, Buffalo 14260, NY 3Taylor Devices, Tonawanda, NY aSatish.Nagarajaiah@rice.edu Key Words: adaptive negative stiffness system; adaptive negative stiffness device; passive control; seismic protection; structural control; inelastic response Abstract.
Journal of Structural Engineering, 129, 845-856
Earthquake Engineering and Engineering Vibration, 8(4), 469–479
Journal of structural Engineering, 122(12), 1394
Journal of Engineering Mechanics, 126(6), 633–640

A key feature is the manner in which parasitic impedances are handled.
During the design phase, these factors were arranged into two groups: materials and geometry.
As an example, the design stage of the HT-series involved a detailed study of the base plate, carefully comparing multiple materials and geometrical configurations.
Entirely inorganic materials (metals, ceramics, etc.) are utilized in a custom high reliability package.
Advanced lightweight materials and a small footprint result in a surprisingly lightweight assembly (~135g).

Magnetic Materials 3.
On the basis of electronic structure of materials and their response to magnetic field, the magnetic materials can be classified into five types (shown in Fig. 1): · Diamagnetic materials · Paramagnetic materials · Ferromagnetic materials · Ferrimagnetic materials · Antiferrimagnetic materials I.
Gupta, Synthesis and surface engineering of iron oxide nanoparticles for biomedical applications, Biomaterials 26 (2005) 3995-4021
Rossnagel, “Sputter Deposition” in Opportunities for Innovation: Advanced Surface Engineering; Technomic Publishing Co., Switzerland, 1995
Gupta, Recent advances on surface engineering of magnetic iron oxide nanoparticles and their biomedical applications, Nanomedicine 2 (2007) 23-39

In photochemistry, LDH materials may be used as infrared absorbing materials in agricultural plastic films, affording higher night-time temperatures in greenhouses.
McCabe, Inorganic materials (eds) D.W.
Kalinichev, Molecular models and simulations of layered materials, Journal of Materials Chemistry 19 (2009) 2470-2481
Yu, Inorganic nanoparticles as carriers for efficient cellular delivery, Chemical Engineering Science 61 (2006) 1027-1040
Ghosh, Mg-Al layered double hydroxide-methotrexate nanohybrid drug delivery system: Evaluation of efficacy, Materials Science & Engineering C-Materials for Biological Applications 33 (2013) 2168-2174

Vol. 86 (2005), p. 091907 [35] Tao Zhang and Akihisa Inoue: Materials Science and Engineering A Vol. 304 (2001), p. 771 [36] Arun Pratap, K.G.
Awasthi: Materials Science and Engineering A Vol. 304 (2001), p. 357 [37] M.
Vol. 44 (2001), p. 1649 [50] Svetlana A Shabalovskaya: Bio-Medical Materials and Engineering Vol. 12 (2002), p. 69 [51] R.
Yen: Materials Science and Engineering A Vol. 216 (1993), p. 193 [55] H.
Woo: Materials Science and Engineering A Vol. 371 (2004), p. 45 [58] C.

Research on Parameters Optimization Algorithm in Support Vector Machine Based on Immune Memory Clone Strategy Fang Zhu 1, a , Junfang Wei 2, b 1School of Computer and communication engineering, Northeastern University at Qinhuangdao, Qinhuangdao, 066004, China 2School of Resource and material, Northeastern University at Qinhuangdao, Qinhuangdao, 066004, China asky050607@sina.com, bweijunfang123@sina.com Keywords: support vector machine, parameters selection, immune memory clone, multi-peak optimization, n-folded cross verification Abstract.
The key of the proposed algorithm for SVM parameters optimization based on artificial immune algorithm is presented as follows: 1) Coding schemes design of antibody.
[6] Liu Xiangying, Jiang Huiyan, Tang Fengzhen: Parameters Optimization in SVM Based-on Ant Colony Optimization Algorithm, Nanotechnology and Computer Engineering, 2010, p. 470 [7] Zhu Ning, Feng Zhigang, Wang Qi: Parameter Optimization of Support Vector Machine for Classification Using Niche Genetic Algorithm, Journal of Nanjing University of Science and Technology (Natural Seience), 2009, p. 16 [8] Ren Yuan, Bai Guangchen: Determination of Optimal SVM Parameters by Using GA/PSO, Journal of Computers, 2010, p. 1160 [9] Yuan Xiaoyan, Liu Ailun: The Research of SVM Parameter Selection Based on PSO Algorithm, Techniques of Automation and Application, 2007, p. 5

The Failure Analysis and Countermeasures of Starter Battery Suning Zhang a, Pu Xieb, Runsheng Yangc, Tianzhang Shao Department of Vehicle and Electrical Engineering, Ordnance Engineering College, 97 Heping West Road, Shijiazhuang, Hebei, P.
The working principle of VRLA battery Limit the capacity of the positive electrode in the design of sealed lead-acid battery, and negative electrode active material excess capacity, in order to ensure that the positive electrode precipitated oxygen first during charging, and the negative electrode does not generate hydrogen, such as chemical equation (1) is shown. 2H2O→O2+4H++ 4e
Summary There are many factors that could cause the premature failure of starter VRLA battery, Except that the battery quality is not good, the key point is that whether the battery is correctly used and maintained.