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Modification of Bisphenol A Dicyanate Ester Resin with Poly Vinyl Pyrrolidone (K30) Jieliang Wang1,a, Aijuan Gu2,b and Guozheng Liang2,c 1Architectural Engineering Institute of the General Logistics Department, P.
China, Xi’an Shaanxi 710032, China 2 Department of Polymer Engineering, Materials Engineering Institute, Soochow University Suzhou, Jiangsu 215021, China aJimmywang10@gmail.com, bajgu121@hotmail.com, clgzheng@nwpu.edu.cn Keywords: Bisphenol A dicyanate esters, Poly vinyl pyrrolidone, Toughening Abstract.
Introduction As one of the high performance resins, cyanate ester resins have received much attention in the areas of aerospace structure, aircrafts, some other government issues and civil industry products, owing to their high performance of mechanical properties, low water up-takes, thermal and high temperature performance, good dielectric properties and so on.[1-3] The resin (BADCy) is one of the most popular kinds among them.

Analysis on Surrounding Rock Stability of Joints Strike Parallel to the Cavern Zhizeng Zhang, Yongtao Li, Xiaochang Li School of Civil Engineering and Architecture Zhongyuan University of Technology Zhengzhou, 450007 China zhangzhizeng@163.com, lytxiaohuan @163.com, lixiaochanga2008@163.com Keywords: joints; underground cavern; rock mass stability; numerical calculation; Abstract.
Rock mechanics problems become complicated for anisotropic; the jointed rock mass as an isotropic rock for engineering design and calculation will result in an error which cannot be ignored.
Geotechnique, 2001, 22(3):254-257 [3] Meifeng Cai, Manchao He, Dongyan Liu, Rock Mechanics and Engineering.

The most widely used in the engineering is the mass fraction that the quartz through a sieve of a certain mesh size.
It can be generalized to granular composites engineering applications.
China Civil Engineering Journal, 2007(40):98-103

Probabilistic Estimation of Airtightness Performance of Concrete Vacuum Tube Structures Joonam Park1,a, Jeongmin Cho1,b, Hyung-Jun Park1,c Department of Civil and Environmental Engineering, Wonkwang University, Iksan, Jeonbuk 570-749, South Korea a joonam.park@gmail.com, b deathtarget@naver.com, c phj2217@naver.com Keywords: probability, vacuum tube, concrete tube, airtightness Abstract A probabilistic analysis is performed where the pressure change inside a concrete tube is probabilistically estimated considering the uncertainties inherent in the material, system discontinuity and outside pressure.
Random variables associated with the sources are then defined based on an experiment on the concrete material airtightness and engineering judgments.
Kwon (2011) Aerodynamic characteristics of a tube train, Journal of Wind Engineering and Industrial Aerodynamics, 99(12), pp.1187-1196 [3] J.

A Study on Economic Post Project Evaluation of Cascade Hydropower Stations based on Data Envelopment Analysis Binbin Tang1,a, Baochen liu1,b and Zhihua Deng2,c 1School of civil engineering, Central South University, Changsha 410075, China 2Wuling Power Corporation, Changsha, 410007, China atbb1979@sina.com, bbbtang@chinapower.hk, cdeng_dzh@wu-ling.com Keywords: cascade hydropower stations project; DEA; economic post project evaluation.
The Economic Post Project Evaluation of Yuanshui Cascade Hydropower Station Engineering Survey.
Zhen, The application of fuzzy AHP method in water and hydropower engineering, Hunan Water Resources, 3 (1997) 24-27

Baltic Journal of Road and Bridge Engineering, Volume: 4, Issue Number: 2, Vilnius Gediminas Technical University (2009), pp 69-79
Journal of Materials in Civil Engineering 18(1): 81–92.
The 8th International Conference on Environmental Engineering Vilnius, Lithuania.

Optimization of Numerical Analyses for Maintenance of Fuselage Skins with Rectangular Repairs Viktor Pastoukhov1,2,a *, Carlos Antonio Reis Pereira Baptista2,b , Hélio de Souza Teixeira Jr.3,c and Paulo Roberto Pereira Manzoli1,d 1UNITAU, Taubaté - SP, Brazil 2EEL-USP, Lorena – SP, Brazil 3CEMEF Engineering, São José dos Campos – SP, Brazil avpastouk@gmail.com, bbaptista@demar.eel.usp.br, chelio@cemef.com.br, dpaulo.manzoli@gmai.com Keywords: Fatigue, Crack Propagation, Damage Tolerance, Aging Aircrafts, Structural Repairs, Inspection Intervals, Numerical Analysis, Finite Element Method, Stress Intensity Factor.
In the history of world civil aviation at least two catastrophic cases with hundreds of victims occurred because of neglected post-repair actions [3, 4].
Engle, Numerical analysis of crack propagation in loaded structures, Journal of Basic Engineering, Trans.
Bigelow, Engineering approach to damage tolerance analysis of fuselage skin repairs, DOT/FAA/AR-95/75, 1996. 22 p

Dynamic Analysis of Functionally Graded Euler Beam with Elastically Restrained Edges Jun-feng ZHAO1,a,*, Jing FANG1 and Yao LI1 1School of civil engineering, Shandong University, Jinan 250061, PR China azhaojunfeng@sdu.edu.cn Keywords: Functionally graded materials, Elastically restrained edges, Natural frequencies, Euler beam.
The FGMs have been presented as an alternative to laminated composite materials and are used in many engineering sectors such as the aerospace industry, biomechanics industry, nuclear industry, optoelectronics, and so on.
From an engineering point of view, the accuracy will be considered sufficient.

Numerical hybrid fluid structure coupling: application to mixed lubrication in metal forming Deltombe Raphael 1 2, Belotserkovets Anastasia 4, Dubar Laurent 13 1Univ Lille Nord de France, Lille, France 2UVHC, LAMIH UMR 8201, F-59313 Valenciennes, France 3 UVHC, TEMPO EA4542, F-59313 Valenciennes, France 4 The Department of Civil and Environmental Engineering,Princeton University,Princeton, NJ, USA * Corresponding author: DELTOMBE Raphael / E-mail address: raphael.deltombe@univ-valenciennes.fr Keywords: lubrication, roughness, oil trapping, metal forming, local Couette’s equation Abstract.
Masuda, Modeling of blast process using indenting method, Precision engineering 28 (October 2003) (2004) 369–377
Batchelor, Engineering tribology, Butterworth-Heinemann, 2005

College of Water Resource and Civil Engineering, China Agriculture University, Beijing 100083, China; 2.
Key Laboratory of Structure and Environment in Agricultural Engineering, MOA, China, Beijing 100083 3.
Agricultural Engineering Sciences, University of Illinois at Urbana-Champaign, 332N AESB, MC-644 1304 W, Pennsylvania Avenue, Urbana IL 61801, USA a Email: zhangttzd@163.com; b* Email: hfcauedu@163.com; c Email: dongtaili@126.com; d Email: niuxichengjy@163.com; e Email: libm@cau.edu.cn; f Email: minhe0234@163.com; g* Email: yzhang1@illinois.edu; Keywords: Chicken manure fermentation broth; Ammonia absorption; Chlorella sp.; Wastewater utilization; Bio-crude oil feedstock production Abstract: One of the useful applications of chicken manure fermentation broth was foliar fertilization production.