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The Research on Statistical Characteristics of China Civil Aviation Network Hongguang YAO1 1School of Air Transportation Shanghai University of Engineering and Science Shanghai, 201620,P.R.
China email:Yhg1yhg@sina.com Keywords: Statistical Characteristics, China Civil Aviation Network, complex networks Abstract.
China Civil Aviation Network data acquisition The Tourism Net boat class timetable as the main source of data, by the end of May 16, 2011, a total acquisition navigable City 163, 2198 domestic routes, flight 9611.In 163 a navigable city respectively as a matrix of rows and columns, with two flights between city as weight, forming a 163 * 163 weighted aviation network adjacency matrix.

Study on Engineers’ Retention in Indian Construction Industry S.Kamal 1, a, Hazeen Fathima2, b and C.Umarani 3, c 1 Research Scholar, 2Post Graduate Student, 3Associate Professor, Department of Civil Engineering, College of Engineering, Guindy, Anna University, Chennai-600025, India a hazeenfathima@gmail.com, b kamalselva21@gmail.com, c umarani@annauniv.edu Keywords: Construction Organization, Engineers’ Attrition, Retention, Job Satisfaction Abstract: The Construction industry is a challenging, competitive and rapidly growing industry.
As a result there is a competition for finding efficient and talented engineers which results in increased rate of Engineers’ attrition.
On the other hand 53.3% of the respondents are site engineers, 25.4% are planning engineers,9.8% are design engineers,4.9% are project managers, 2.5% are safety engineers and 0.8% are technical engineers.
Table 1 Demographic Information of Respondents Gender Percent Male 82.5 Female 17.5 Designation Percent Site Engineer 53.3 Planning Engineer 25.4 Design Engineer 9.8 Project Manager 4.9 Safety Engineer 3.3 Experience Percent 1 to 5 years 76.6 5 to 10 years 15.0 10 to15 years 5.8 15 to 20 years 2.5 The top five reasons for engineers’ attrition are shown in Fig. 1.
Forsythe: The Lack of a Clearly Defined Retention Strategy and the Impact on the Retention of Civil Engineers, Thesis report, Capella University (2008)

The technology monitoring the operating state of the architecture construction is always hot topics in civil engineering.
CHINA CIVIL ENGINEERING JOURNAL. 2000, 33(4): 1-5.
State-of-the-Art review of the Structural health monitoring in civil engineering[J].
JOURNAL OF DISASTER PREVENTION AND MITIGATION ENGINEERING. 2003, 23(3): 92-98.
CHINA CIVIL ENGINEERING JOURNAL. 2006, 39(2): 46-52.

Introduction During precedent two decades the extensive development of advanced structural systems for civil engineering can be characterized by application of wide spectrum of basic materials used for load-carrying structural components.
The higher quality FRP materials are now available in shapes and forms more attractive for civil engineering constructions.
Three broad divisions, into which utilization of FRP in civil engineering can be classified, are usually indicated: application for new constructions, repair and rehabilitation, and architectural implementation.
In general, the contemporary approach to the structural design of load-carrying members and systems for civil engineering constructions is based on the limit state concept, i.e. on LRFD (Load Resistance Factor Design).
Filip: To design and experimental verification of actual behaviour of selected all-FRP structural components for civil engineering, In Proceedings of the 1st Conference on Advances in Polymer-Fibre-Reinforced Structures, Hong Kong (2007)

A review on the methods of improving fiber distribution of engineered cementitious composites(ECC) Niu HengMao1,3,a, Xing YongMing1, b, Zhao YanRu2,c 1Inner Mongol University of Technology, School of Science,Hohhot 010051, China 2Inner Mongol University of Technology, School of Civil Engineering, Hohhot 010051, China 3Inner Mongol Technical college of construction, Department of construction engineering, Hohhot 010070, China aemail: niuhengmao@163.com, bemail: xym@imut.edu.cn, cemail: zhaoyanru710523@yahoo.cn Key words: Engineered cementitious composites; fiber distribution; strain-hardening; fiber characteristics; matrix components Abstract: Engineered cementitious composites(ECC) are characterized by strain hardening and tight crack width control.
Design of engineered cementitious composites for ductile seismic resistant elements, in department of civil and environmental engineering[D].
Eng Mater Civil Eng 2001, 127(4): 311–316 [6] Ozyurt N.
Micromechanics based matrix design for engineered cementitious composites, in departmental of civil and environmental engineering[D].
Micromechanical tailoring of PVA-FRCC for structural applications in departmental of civil and environmental engineering[D].

This paper presents the possibility to utilize the 3D printing technology in civil engineering field specifically for concrete structures.
Many research groups worldwide try to develop cement-based material suitable for 3D printing so that it might be used for civil engineering structures.
ATENA is well established tool for such analyses of civil engineering structures made of concrete.
Its potential is used in various industrial fields such as automotive, aeronautical or biological engineering.
Nowadays also civil engineers start to employ digital printing of concrete due to possibility to reduce labour cost, increase the building speed or architectural freedom.

The analysis of threat about the lightning stroke in the automatic charging station in civil aviation airport Baocheng wang 1, a, Guyong Han 2,b, Jun Zhou3,c, Song Lu4,d Xuzhou Airforce College,Xuzhou,China aEmail:xzkjxywangbaocheng@163.com Keywords: the automatic charging station, the model of lightning stroke, the analysis of the threat about lighting stroke Abstract.
Basing on the cause of the thunder and lightning, this paper makes a model of the threat about the automatic charging station in civil aviation airport and has a detailed analysis of the harm that the thunder and lightning can do to the buildings, personnel, the computer system, the control system and the power system, it provides a theory basis to the design of the protection about the thunder and lightning in the automatic charging station.
I.The Model of Lightning Stroke to the Automatic Charging Station in Civil Aviation Airport The first system of the civil aviation automation of charging station is the biggest transient interference source, the different progress of the first system of any form which is occurred in transient interference is introduced into secondary system by the coupling way to form the transient interference.
The lightning interference model of a aviation airport automation charging station II.The Analysis of Threat About the Lightning Stroke in the Automatic Charging Station in Civil Aviation As a result of the automatic charging station will face different kinds threat of the lightning stroke in the thunderstorm season, we will use the lightning interference model of the automatic charging station above to analysis the potential impact and harm of the automatic charging station building, lightning computer system, charging and discharging machine control system, power system and lighting monitoring system.
Electronic engineering, 2007 ,4: 27 to 29 [2] ChuiJun Li, Zheng Lin, ZiHua Li.

Design of Data Acquisition System of Vibration Signal for Civil Engineering Structure WEI SUN1, a, YING ZHANG2, b and SHAOFEI JIANG1, c 1College of Civil Engineering, Fuzhou University, 2 Xue Yuan Road, University Town, Fuzhou, FJ, China, 350108; 2Department of Civil and Surveying Engineering, Liaoning Water Conservancy Vocational College, Nanyi Road of Hushitai Shenbei New District, Shenyang, LN, China 110122; alg1_315@sohu.com, byingzi0728@163.com, ccejsf@fzu.edu.cn Keywords: structure health monitoring, data acquisition system, structure vibration, virtual instrument Abstract.
Introduction Structure health monitoring (SHM) is a new research focus in the field of civil engineering.

 Smart Structural Health Monitoring Based on Detecting Picometer-scale Wavelength Shift of Fiber Bragg Grating Bai Junjie1,2,a, Li Jianxing2, Zhang Jun3, Zhang Xiaoyun1, Wang Le4, Wu Ying 1,b 1College of Electrical and Information Engineering, Chongqing University of Science and Technology, Chongqing 401331, China 2College of Instrument Science and Engineering, Southeast University, Nanjing 210096, China 3Southeast Oil and Gas Field Mining Services Division, 610051, China 4Chongqing University of Posts and Telecommunications, Chongqing, 400065, China ajunjie_7654@163.com, byingwucindy@yahoo.com.cn (corresponding author) Keywords: Smart civil structure; Structural health monitoring; Fiber Bragg grating; Wavelength demodulation; Fiber comb filter Abstract.
In recent years, fiber Bragg grating sensing technology, which has become a research focus at home and abroad, is widely used in structure health monitoring of large civil engineering [3-5].
For the FBG sensors embedded in civil structure construct sensor network, the civil structure constructs become smart structures with some abilities, such as self-awareness, self-analysis, self-calculation, self-reasoning, self-control, and so on.
As is shown in Fig. 1, the wavelength demodulation system can be used extensively in large-scale multipoint monitor engineering.
[12] Guangxue Y. , Feng B. , Research on Fiber Bragg Grating seismic observation system based on ARM, WORLD EARTHQUAKE ENGINEERING, 27 (2011) 202-206

Introduction of Jiu Jiang Bridge Recover Engineering The national road 325 JiuJiang Bridge Recover engineering uses single tower and double cable plane cable-stayed bridge.
The main span of JiuJiang bridge recover engineering is 100m.
China Civil Engineering Journal, 2009,42(3):16~22(In Chinese) [3] J.G.
AISC Engineering .1971.8(4):55-64 [6] J.Y.
China Civil Engineering Journal,1993,26(1):31~37(In Chinese) [7] D.H.Yan, Z.C.Tian: Finite Element Method and Application for the Shrinkage and Creep of Concrete Bridges [J].