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New Algorithm to Identify Inrush Current Based on Improved EMD CHEN Dazhuanga, HUANG Jiadong and SUN Yang Key Laboratory of Power System Protection and Dynamic Security Monitoring and Control, North China Electric Power University, Baoding, Heibei 071003, China ae-mail: devil7663579@163.com Keywords: HHT; EMD; inrush current; wavelet analysis; normalized correlation coefficient Abstract.
In some cases, such as, CT saturation, variation of iron core material, presence of shunt capacitors, or distributed capacitance of long transmission lines to which the transformer is connected[2], the magnitude of the second harmonic in an internal fault current can be close to or greater than that presents in the inrush current.
It has been widely used in Geophysics, Biomedicine and Engineering.

Peak area calculation is the key technology of quantitative analysis, the calculation of peak area could be affected directly by boundary channel selecting for the characteristic peaks, and even the confirmation of peak position be in the condition with combination line.
Nuclear material γ characteristic spectrum detection and analysis technique.
Haerbin Engineering University Press, 2007

Coating material reduces the diffusion and chemical reaction between the props and the work piece, thereby reducing wear and tear, a better solution to the conflict between the tool strength and toughness.
TiCN coating technology trend With the large capacity of power plant steam turbine, steam turbine blade is the key component of the gas steam turbine engine, the most direct part conversing thermal energy into mechanical energy.
At present, only relying on the advanced cooling technology, the development of new high-temperature alloy materials and improvement of turbine blade manufacturing process is difficult to meet the industrial demand in a short period, and therefore strive to improve the pitting corrosion resistance of advanced turbine blade is essential .
Tool Engineering, 2006, 40(1): 20-24 [2] Y Y Gu, J F Lin, C F Ai.
The research progress of TiAlN hard film / coating material.

Design and Development of Warehouse Management System of Inland River Port Jianliang Peng College of Computer Science and Information Engineering, Zhejiang Gongshang University, Hangzhou, China jlpeng2007@126.com Keywords: warehouse management system; inland river port; design; personalized Abstract.
In addition to a large yard storage areas, but also indoor warehouse built nearly 30 million square meters for production and trading of office space, it is the ideal logistics base for storage and processing to the business of steel, building materials (glass, ceramics), timber, chemical raw materials and others.
In order to optimize the business process of CX port Co., Ltd. to enable them to better operation processing and improve efficiency of management, it is necessary to draw the flowchart of the following key business processes.
Shen: Logistics & Material Handling (August 2006), p. 35-38 [7] Y.L.

Wynne1,b, Rene Cerda-Rojas2,c and Rafael David Mercado-Solis3,d 1Department of Materials Science and Engineering, The University of Sheffield, Sir Robert Hadfield Building, Mappin St, Sheffield S1 3JD, UK 2FRISA, Valentín G.
A key manufacturing step that can have a significant influence on property variability is cooling rate variation with the component during quenching.
Typical specification requirements for the selected material are: yield strength ranging from 758 to 896 MPa; minimum ultimate tensile strength of 903 MPa minimum; an average CVN Impact energy of 42 J average with no test less than 28 J.
Kumar, Coupled Analysis of Surface Heat Flux,Microstructure Evolution, and Hardness during Immersion Quenching of a Medium Carbon Steel in Plant Conditions, Materials Performance and Characterization. 1 (2012)

The use of waste material had been formulated as an alternative for plant cultivation [8].
In this study, the key finding of this experiment is to assess the effects of different type of cytokinins which were BAP and Kinetin in different concentration with combination of waste coconut water and sucrose on enhancing the in vitro multiplication of H. polyrhizus.
Experimental Details Plant materials.
Mahmmod, Effect of precursors on flavonoid production in pegaga cell suspension cultures, Malaysian Technical Universities Conference on Engineering & Technology (MUCET) (2013) [6] M.
Ma, Preliminary study on micropropagation of Hylocereus polyrhizus with waste coconut water and sucrose, Materials Science Forum, 981(2019) 316-321

Effect of Limited Water Supply on Photosynthetic Characteristics of Spring Maize (Zea Mays) Hengjia Zhang a and Junhui Li*b Department of Water Resources Engineering, Gansu Agricultural University, Lanzhou 730070, China azhanghj@gsau.edu.cn, bzhangbuchong@hotmail.com Keywords: Limited water supply, Leaf area duration, Relative growth rate, Crop growth rate, Above-ground biomass, spring maize Abstract.
Introduction Improving canopy photosynthetic properties related to dry matter production was the key to yield increase in maize [1], and the total leaf area duration within maize growing season was over 375×104 m2 d ha-1 [2].
However, as important materials for photosynthesis, soil water status directly affects crop photosynthetic properties and biomass.
Materials and Methods Study site description.
Study on relationship between crown canopy of different populations of compact type corn and their material production.

Experimental Rig for Measuring Lubricant Film Thickness in Rolling Bearings ZHANG Xingnan1, a, JABLONKA Karolina2, band GLOVNEA Romeo1, c* 1Department of Engineering and Design, University of Sussex, United Kingdom 2AC2T research GmbH, Viktor Kaplan-Straße 2D, 2700 Wiener Neustadt, Austria aXingnan.Zhang@sussex.ac.uk,cR.P.Glovnea@sussex.ac.uk Keywords:rolling bearings, elastohydrodynamic, film thickness, capacitance.
Lubrication also plays a key role in the contact fatigue failure of rolling bearings thus evaluation of the lubrication regime and the lubricant film thickness in conditions as close as possible to those in operation, are needed.
This is because it requires that one of the bodies is a flat disc and it is made out of a transparent material.
The implications of these requirements are that the true geometry of the contact of rolling bearings and the combination of materials in bearings cannot be reproduced.
The material of the cage is electrically insulating in order to isolate completely the desired ball.

Preparation of Continuous Al2O3/Y2O3 Coating on Carbon Fiber by a Novel Aqueous Plasma Electrolysis Yuping Zhanga, Yonghua Shenb, Weiwei Chenc*, Huanwu Chengd and Lu Wange Department of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China astu_zhangyuping@126.com, bshenyh1990@163.com, cwwchen@bit.edu.cn, dchenghuanwu@bit.edu.cn, ewanglu@bit.edu.cn Keywords: Plasma electrolysis, Carbon fiber, Al2O3/Y2O3 coating, Oxidation resistance.
Introduction As one of the most promising materials in the 21st century, carbon fiber has been widely applied in civil, industrial, and aerospace fields due to its high modulus, low density, low coefficient of thermal expansion and high strength-to-weight ratio [1-4].
The cathodic plasma arc zone is the key to successfully deposit Al2O3/Y2O3 ceramic coating.
The mass loss was occurred due to the removal of sizing material from bare carbon fiber and the evaporation of moisture and solvent from coated sample.

Introduction Overhead conductor is an important part of the power transmission line and is the carrier of electric power, whose safety is a key factor to ensure stable operation of the power transmission line.
Exterior factors consist of environment conditions, tension force and operation temperature of conductor etc, interior factors consist of material composition, metal structure, geometrical structure, production process etc.
Tab.1 Creep equation and creep ratio Tension force /kN Creep rate equation Creep rate /% 1 000 h 10 years 30 years 33.92（15%RTS） 0.0038T0.2013 0.0153 0.0376 0.0469 56.54（25%RTS） 0.0062T0.2006 0.0248 0.0608 0.0758 90.46（40%RTS） 0.0103T0.1988 0.0407 0.0989 0.1231 Fig. 2 JL/G3A-1000/45-72/7 creep characteristic curves Raw materials and production process of different manufacturers are difference, creep rate of the manufactured conductor with same specification is different, even creep rate of same conductor in different lot manufactured by same manufacturer is different.
Conclusions 1) Carry out test on creep characterisitics of 1000 mm2 large section conductor manufactured by many manufacturers, test results show there is certain difference on creep rate of 1000mm2 conductor manufactured by different manufacturer because of difference of production process and raw materials. 2) Temperature reduction value of 1000 mm2 large section conductor takes 30℃ during stringing construction.
Design manual of high voltage power transmission line in power engineering [R].