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Co-occurrence network of institutions of aerospace engineering demonstrates that there are many institutions in the aerospace engineering field but very little collaboration with other institutions.
Now, aerospace engineering is a start-up strategic industry in China.
In the figure, the words that occurred in quite low frequency but high centrality shows that they are not hot-spots but intellectual base, including “closed-loop systems”, “civil engineers”, “flow field”, “external disturbance”, “microgravity condition” and so on.
It can indicats that base of Aerospace engineering is relative innovate.
[14] Renzhang Zhu, Hongfang Wang, Yujie Xu, Yuliang Wei: Spacecraft Engineering.

The Development History and Its Research Status of the Technology of Ground Penetrating Radar Lei YANG Yellow River Institute of Hydraulic Research, Yellow River Conservancy Commission, Henan 450003, Zhengzhou, China Email: mailyanglei@126.com Keywords:  ground penetrating radar, electromagnetic scattering, quality of engineering Abstract.
As a widely used and nondestructive detecting means, since the beginning of 20th centry, the radar detecting technology has been developing continuously with the demand of various engineering application, and it also gained the promotion of the high and new technology which constantly rise.
With the advancement of device developing, test means and application technology, ground penetrating radar develops very quickly and achieves notable achievements in China in the field of geological exploration, archaeology, mineral resource detecting, hydrology, transportation, environmental engineering, civil works, municipal administration, and other fields.
The Application and study of GPR in engineering geophysics[D].
Study on digital processing technology of ground penetrating radar and the application of ground penetrating radar in hydroelectric engineering [D].

The Evaluation of Surplus Bearing Capacity of Chipped Bridge Piers Xiao Liu 1, a, Ruheng Wang2, b, Bin Jia3, c 1 The Department of Civil Engineering and Architecture, Southwest University of Science and Technology, Mianyang, 621010, China; 2 The Department of Civil Engineering and Architecture, Southwest University of Science and Technology, Mianyang, 621010, China; 3 The Department of Civil Engineering and Architecture, Southwest University of Science and Technology, Mianyang, 621010, China; aliuxiao0807@126.com, bwangruheng@swust.edu.cn, cjiabin216@126.com Keywords: notch area; surplus bearing capacity; regulation factor Abstract.

Seismic Retrofitting of School Facilities Using Attaching and Wrapping Composite Materials Park Choon-Wook1,a, Park Ik-Hun 2,band Kim Dong-Hwi 3,c and Choi Yeol 4,d 1Research Center for Structure, Kyungpook University, Daegu-city 702 701, South Korea 2School of architectural& civil engineering, Kyungpook National University, 370, Daegu, Korea 3School of architectural& civil engineering, Kyungpook National University, 370, Daegu, Korea 4School of architectural& civil engineering, Kyungpook National University, 370, Daegu, Korea apark2379@hanmail.net, bgale6138@naver.com, ckimdh@knu.ac.kr , dchoiyeol@knu.ac.kr Keywords: Composite Material beam, Column Seismic Retrofit Improvement, School Seismic Retrofit Abstract.

Hana Vaculíková1,d 1 VŠB – TUO, Faculty of Civil Engineering, Department of Building Constructions, L.
Podéště 1875, 708 33 Ostrava Poruba, Czech Republic 2 VŠB – TUO, Faculty of Civil Engineering, Department of Building Structures, L.
You can often come across cases when these systems are implemented by personnel of civil engineering companies without the slightest idea of the problems incorrect implementation of contact heat insulation may case to the building owners in future.

Analysis of the effect of Atmospheric environment on life of buildings Li Sun1, a, Jing Sun2, b and Hongbo Liu2, c 1 Dept of Civil Engineering, Shanghai Jianfeng vocational and technical Institute, Shanghai, 201900, China 2 Dept of Civil Engineering , Hebei Institute of Architecture and Civil Engineering Zhangjiakou,Hebei,075000, China asli961@126.com, bkathy2001joy@163.com, cbo-hong@126.com Keywords: Atmospheric environment, Reinforced concrete structure, Service life, Durability Abstract.

Comparison of the impact of the ventilation ducts on thermal properties of the exterior walls Hana Sevcikova1,a, Eva Rykalova1,b* and Radek Fabian1,c 1VSB – TU Ostrava, Faculty of Civil Engineering, Ludvika Podeste1 875, Ostrava – Poruba, 708 33, Czech Republic ahana.sevcikova@vsb.cz, beva.rykalova@vsb.cz, cradek.fabian@vsb.cz Keywords: Ventilation duct, moisture, temperature factor at internal surface, dew point temperature Abstract: Implementation of the ventilation ducts is one of the ways how to reduce the moisture in the vertical masonry structures.
Acknowledgement This outcome has been achieved with the financial support of the VSB-TU Ostrava, Faculty of Civil Engineering, Department of Civil Engineering.

SGS-2013-036: Modeling heterogeneous materials and complex mechanical structures in mechanical and civil engineering).
[2] Standard SF-4 Method of Test for Flexural Strength and Flexural Toughness of Fiber Reinforced Concrete, Japan Society of Civil Engineers, 1984, pp. 58-66
Šolc, Probabilistic analysis of bending stiffness of concrete-fiber sample, in: JUNIORSTAV 2013, Brno University of Technology, Faculty of Civil Engineering, Brno, 2013, s. 1-5.

Acquisition Algorithm for GPS L2C Signal on Dual-frequency Navigation Receiver HOU Binga, ZHANG Xiaolinb , DU Pengchengc and XU Zhufengd School of Electronic and Information Engineering, Beihang University, Beijing, 100191 P.
Introduction The first BLOCK IIR-M satellite was launched on 26 SEP 2005(SVN 53, PRN 17), which transmits a second civil signal L2C on the L2 frequency and the military M signal on the L1 and L2 frequencies.
The L2C signal consists of two codes: CM code (civil-moderate code) and CL code (civil-long code).
The L2C signal has great superiority for civil applications of GPS, capacitating receivers to measure in highly accurate.
[6] ARINC Engineering Services, Navstar GPS Space Segment/Navigation User Interfaces, IS-GPS-200, Revision D, 7 December 2004

The constitutive relationship of high strength concrete under uniaxial compression ZHU Jincai 1, a *, Yan Changwang 2, b and Liu Shuguang 3, c 1 Civil Engineering Institute of Inner Mongolia University of Technology, 49 Aimin Street, Xincheng District, Hs Hohhot 010051, and China. 2 Mine Institute of Inner Mongolia University of Technology, 49 Aimin Street, Xincheng District, Hs Hohhot 010051, and China. 3 Mine Institute of Inner Mongolia University of Technology, 49 Aimin Street, Xincheng District, Hs Hohhot 010051, and China.
Introduction The application of high strength concrete become more and more widely in civil engineering.
So it adapts to the high-rise, heavy, large span and modern engineering structural’s requirements.
In order to promote the application of high-strength concrete in Civil Engineering, It is necessary to better study the mechanical properties.
Domestic research on high-strength concrete is more concentrated in the C60-C80, the concrete of C80 to C100 are relatively small in researching and application in engineering [4].