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Zhao H.,Shenyang University of Technology | Bai C.,Shenyang University of Technology | Zhu S.,Northeast Electric Power Research Institute
Applied Mechanics and Materials | Year: 2011

Search engines can bring a lot of benefit to the website. For a site, each page's search engine ranking is very important. To make web page ranking in search engine ahead, Search engine optimization (SEO) make effect on the ranking. Web page needs to set the keywords as "keywords" to use SEO. The paper focuses on the content of a given word, and extracts the keywords of each page by calculating the word frequency. The algorithm is implemented by C # language. Keywords setting of webpage are of great importance on the information and products © (2011) Trans Tech Publications. Source

Li X.W.,Northeastern University China | Peng N.,Northeastern University China | Wu X.M.,Northeast Electric Power Research Institute | Wang Z.G.,CAS Shenyang Institute of Metal Research
Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science | Year: 2014

Dislocation structures in [1̄12] Cu-7 at. pct Al alloy single crystals cyclically deformed at different plastic strain amplitudes were investigated by transmission electron microscope (TEM) and compared with the results of [1̄12] Cu single crystals. It is found that the plastic strain amplitude γpl has an obvious effect on the slip deformation mode, and consequently on the cyclic hardening behavior of [1̄12] Cu-7 at. pct Al alloy single crystals with an intermediate stacking fault energy. For instance, a high slip planarity (i.e., only formation of planar-slip bands) contributes to the occurrence of a gentle cyclic hardening with a much lower saturation stress at a low γpl of 4.5 × 10-4. A mixed planar/wavy-slip mode (e.g., persistent Lüder's bands/wall-like micro structures) at an intermediate γpl of 2.2 × 10 -3 causes an obvious cyclic hardening up to a comparable saturation stress to that for the [1̄12] Cu single crystal. In contrast, the deformation mode is dominated by wavy slip (e.g., ill-defined dislocation cells and walls) at the highest γp1 of 7.2 × 10-3, causing that its cyclic hardening curve is quite similar to that for the [1̄12] Cu single crystal; in this case, a slightly higher saturation stress level than that for the Cu single crystal is reached due to the additional solid solution strengthening. © The Minerals, Metals & Materials Society and ASM International 2014. Source

Fang G.,Northeast Electric Power Research Institute
Proceedings - 2013 5th Conference on Measuring Technology and Mechatronics Automation, ICMTMA 2013 | Year: 2013

It is the guarantee of the economic benefits to the coal fired power plant that turbine generator is safe and stable operation, before the turbine is putting into production operation, it must ensure that the MSV, RSV, GV and CV of turbine have a good valves leak, this is the premise safeguard to the safe and stable operation of the unit, in this paper, it is mainly to analysis that how to ensure the turbine valves leak. © 2013 IEEE. Source

Fang G.C.,Northeast Electric Power Research Institute
Advanced Materials Research | Year: 2012

The phenomenon of higher shaft vibration and higher bearing temperature is repeated happening during the starting of the 1 000MW coal fired unit of Suizhong power station, seriously endanger the safe operation of the unit, this article mainly aims at the difficult problem of this one technology, by researching on steam turbine work principle and vibration analysis, to find the reason of effect on stability, and to correct all unreasonable factors, to ensure the safe and stable operation of the unit, to laid solid foundation for the construction of the intelligent power grid. © (2012) Trans Tech Publications, Switzerland. Source

Feng S.,North China Electrical Power University | Zhu L.,North China Electrical Power University | Liu Z.,Northeast Electric Power Research Institute
Proceedings - 2012 International Conference on Computer Science and Electronics Engineering, ICCSEE 2012 | Year: 2012

Smart meter is an intelligent instrumentation whose core is the microprocessor application and network communication technology. Smart meter is getting the popularizing and applying at home and abroad. Except for having the basic function of the two-way measurement, Smart meter also has other various functions, for example, the point classification measurement, two-way communication, various control models, a variety of data transmission mode, preventing electricity-stolen. This paper introduces the working principle of the smart meter, expounds the application of zero line current transformer for smart meter, analyzes the actual connection mode of smart meter installation, proposes the problems should be paid attention to when the smart meter is installed, and the last gives the relevant solutions. © 2012 IEEE. Source

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