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The method of finding the center of steam turbine shaft coupling based on multiple practice Jing Liu1, a, Yong-Sheng Kuang2,b 1Changsha university of science and technology, Energy and Power engineering national laboratory , Changsha, Hunan province, China. 2NingXiang town by the open area development road, Changsha, Hunan province，China.
Generally,according to the lack of a precise systematic, streamline processes, this process is time-consuming and waste of energy.This paper deduces the a simplified calculation method based on center adjustment, among them, clearly adjust center calculation is divided into several specific part, and clearly describe the key processes of it , and applied to other analogous process of finding center. 1 Center adjustment method of the application 1.1 Initial parameters In this example,the diameter of coupling of two rod plane table is referred to,which is D 603.00 mm, the distance of circular table to 2 # bearing center is 327.00 mm, center distance of2# bearing is 2220.00 mm,the angle of bearing adjustment block center and the shim the centerline named a=75 °, and cosa =0.28, sina= 0.92.Coupling circumference value and openings deviation as shown in Fig. 1, Fig. 1, Numerical coupling center before and after the adjustment 1.2 Calculation process and results Using formula
Each of the shim under the adjusting shim shoulds not be more than three pieces.To adjust gasket sheet steel should be adopted and phosphor copper, unfavorable use copper skin soft material such as Single chip thickness is not less than 0.02 mm, the aperture should be bigger than shim aperture of 1 ~ 2 mm; Gasket assembly, should be carefully cleaned its burring and rough edge.
Material damage diagnosis and characterization for turbine rotors using three-dimensional adaptive ultrasonic NDE data reconstruction techniques, J.

Theoretical Study of the 1CF2 + 3O2 Reaction on the Singlet Potential Surface Congyun Shi1,a, Jiadong Yu1, Xingzhong Liu1, Yan Yang1, Lin Wu1, Debing Li1, Fei Lou1, Mengcheng Yang1, Wenjing Chen1, Ying Zhou1. 1College of Chemical Engineering and Technology, Wuhan University of Science and Technology, Wuhan, 430081, People’s Republic of China ashicongyun@yahoo.com.cn Keywords: Theoretical calculation; Reaction mechanism; Difluorocarbene (1CF2); Oxygen (3O2).
Acknowledgements This work was financed by Educational Commission of Hubei Province of China (D20111105), by the open funding of Ministry-of-Education key laboratory for the green preparation and application of functional materials, Hubei University, and by the open funding of the green manufacturing and energy conservation research center, Wuhan University of Science and Technology (C1201).

Effects of Grain Morphology on Flow Behavior of Semi-Solid Slurries Min Luo1,a, Daquan Li2, b, and Hongxing Lu1, c, Wenying Qu1, d, Hong Zhang3,e, Le Cheng1, Qiang Zhu1, f, * 1Department of Mechanical and Energy Engineering, Southern University of Science and Technology, 518055, Shenzhen, China 2General Research Institute for Nonferrous Metals, 101407, Beijing, China 3AVIC CHENGDU ENGINE(GROUP)CO.
KQTD20170328154443162), the National Key Research and Development Program of China (N0.2016YFB0303001), and the Shenzhen Science and Technology Innovation Commission (No.
Qu, et al., Mold–Slug Interfacial Heat Transfer Characteristics of Different Coating Thicknesses: Effects on Slug Temperature and Microstructure in Swirled Enthalpy Equilibration Device Process, Materials 12 (2019) 1836

Marano3,c 1Department of Structural and Geotechnical Engineering, Sapienza University of Rome, Via A.
It should be remarked that most of the applications regarding OSP techniques are in the field of aeronautic, aerospace and mechanical engineering.
In this field, the selection of the best DOFs to be monitored seems to be mostly based on engineering judgments only.
Although this paper deals with a particular bridge structure, considerations and results herein presented may provide a constructive framework for similar engineering applications.
Zumpano, On the optimal sensor placement for a bridge structure, Engineering Structure 27 (2005) 1488-1497 [3] G.C.

Dumesic: Current Opinion in Chemical Engineering, Vol. 1 (2012), p.218 [5] L.Brinchi, F.Cotana, E.Fortunati and J.M.Kenny: Carbohydrate Polymers, Vol. 94 (2013), p.154
Irbis: New Chemical Materials, Vol. 42 (2014) No.4, p.30
Kobayashi: Biochemical Engineering Journal, Vol. 23 (2005), p. 131
Rigal: Chemical Engineering and Processing, Vol. 72 (2013), p.1
He: The Chinese Journal of Process Engineering, Vol.8 (2008) No.6, p.1103.

There are many metal oxide oxygen carriers proper to the gaseous fuel CLC process, including Ni-, Fe-, Co-, Mn- and Cu-based materials, but for solid fuel CLC process, the most studied oxygen carriers are Fe-, Ni-, and Cu-based materials.
Copper has several favorable features over other oxygen carrier materials.
In addition to the synthetic iron materials, many cheap materials were tested as OCs in order to save the investment and operational costs of the material preparation.
Mattisson, Solid fuels in chemical-looping combustion using a NiO-based oxygen carrier, Chemical Engineering Research & Design, 87 (2009) 1543-1550
Lyngfelt, Thermal analysis of chemical-looping combustion, Chemical Engineering Research & Design, 84 (2006) 795-806

Research on Virtual Operating System of Hydraulic Support Based on Virtools Ming Gong, Jianwu Wang and Bingwen Li College of Mechanical and Electrical Engineering, China University of Mining and Technology Xu Zhou, China e-mail:gongminghappy@126.com Keywords: component; virtools; virtual reality; hydraulic support; coal mine; Abstract.
Hydraulic support is a key equipment to control the roof in full mechanized coal face.
Then add materials for the 2D frames to make it more stereoscopic.

Gas Bubble Behavior Model in Adhesive Bonding Using Thermosetting Polymer Lei Nie1, a, Yuning Zhong1,b and Yepeng Zhang1,c 1 Key Lab of Modern Manufacture Quality Engineering, Hubei University of Technology, Wuhan, 430068, P.
In this bonding technique, a polymer layer is applied as intermediate to bond two wafers together and thermosetting polymer is one of the most important intermediate materials [4-5].

The Effect of Drying-rewetting on Soil Nitrogen Nitrification Yingying Zhenga, Xinshan Songb and Xiaoxiang Zhao*c College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China ahanyihanzyy@163.com, bnewmountain@dhu.edu.cn, *czxx@dhu.edu.cn Keywords: drying and rewetting, soil moisture content, nitrification Abstract.
Materials and Methods Soil Collection.
Acknowledgements We gratefully acknowledge National key basic research development program (973 Program, 2010CB951102), Nature Science Foundation of China (51079028) and Nature Science Foundation of Shanghai (10ZR1400300).

Udhayakumarb Department of Electrical and Electronics Engineering, Anna University, Chennai, India agowrisankar_eee@yahoo.co.in, bk_udhayakumar@annauniv.edu.
Electrostatic actuation as a method to obtain movement in NEMS devices is extremely popular since this actuation method provides simplicity, fast actuation rates, very low, if not zero power consumption, and no special material requirements.
The key components are a movable structure, which can be a single-wall carbon nanotube, and a fixed ground plane.
Since every action has an equal and opposite reaction, the equal and opposite reaction is the elastic repulsive force and is given by: (7) The spring constant, k, depends on the material and geometry of the actuator.