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Akinloye1,c 1Department of Civil Engineering, Ladoke Akintola University of Technology (LAUTECH) Ogbomoso, Nigeria 2Department of Civil and Chemical Engineering, University of South Africa, Johannesburg 1710, South Africa aaaraheeka@lautech.edu.ng, b*ikotubd@unisa.ac.za, cakinloyeoyetunde@gmail.com Keywords: Granite, aggregate impact value, aggregate crushing value, compressive strength, splitting tensile strength Abstract.
Department of Civil Engineering, University of Lagos, Nigeria. (2001) [4] A.A Raheem, O.M Aderonmu.
[15] J S Bowles Engineering Properties of Soil and Their Measurement, 4th edition.

Complex systems engineer has explored to our sympathetic of data center ecosystem in important fractions such as information technology (IT) consolidation, project management, and new design for mobile and modular [17].
All systems mean power distribution systems, cooling systems, networking systems, fire protection systems, water leak systems, surveillance systems, rack and cabling systems, operations management systems, civil structure, etc.
The surplus capital costs consists of the costs of the surplus installation over sized power and cooling equipment, wiring and ductwork, civil construction, and electrical bill of surplus operations that are not generated profits.
Wiboonrat, “An Optimal Data Center Availability and Investment Trade-Offs”, Software Engineering, Artificial Intelligence, Networking, and Parallel/Distributed Computing, 2008.
Dvir, “An alternative taxonomy of project management structures: Linking project management structures and project success”, IEEE Transactions on Engineering Management, Vol. 57, No.2, May 2010, pp. 198-210.

Validation of a Novel Method for Thermal Performance Evaluation of Parabolic Trough Receivers XIONG Yaxuan1, a, WU Yuting2,b* , MA Chongfang 2,c , XU Peng3d, LI Deying3e* 1Key lab of HVAC, Beijing University of Civil Engineering and Architecture, Beijing 100044,China 2Key Laboratory of Enhanced Heat Transfer and Energy Conservation Ministry of Education, Beijing University of technology, Beijing 100124, China 3Key lab of HVAC, Beijing University of Civil Engineering and Architecture, Beijing 100044,China axiongyaxuan@bucea.edu.cn, bwuyuting@bjut.edu.cn, cmacf@bjut.edu.cn, dxupeng@bucea.edu.cn, elideying@bucea.edu.cn Keywords: parabolic trough receiver, RIH, heat loss, emissivity Abstract.
Acknowledgment The authors are grateful to acknowledge the financial support for the present work provided by the Key of HVAC, Beijing University of Civil Engineering and Architecture and the National Basic Research Program (also called 973 Program) of China with the grant number 2010CB227103.
Experimental analysis of overall thermal properties of parabolic trough receivers, Journal of Solar Energy Engineering. 130(2008) 1-5

Study of Different Composition of Gypsum as Retarder in Ordinary Portland Cement NUR AFIFAH Mohd Khairuddin1,a*, FATHIN Elliana Ja’afar2,b, SUKHAIRI Ahmad3,c and KHAIRUL Nizar Ismail 4,d 1,2&4Faculty of Civil Engineering Technology, Universiti Malaysia Perlis (UniMAP), Kompleks Pusat Pengajian Jejawi 3, 02600 Arau, Perlis, Malaysia. 3NSCI Sdn Bhd, Perlis Plant (CIMA), Bukit Keteri, 02450 Kangar, Perlis, Malaysia anur.afifah177@gmail.com, bfathinelliana@gmail.com, csukhairi@cima.uemnet.com, dnizar@unimap.edu.my Keywords: Gypsum, clinker, ordinary Portland cement, microstructural analysis, chemical analysis, fine aggregate, compression test, surface hardness, water absorption, specific gravity, initial setting time.
Microstructural analysis test were conduct at Faculty of Chemical Engineering Technology, UniMAP.
Aboud, (2007), Determination of optimum quantity of raw gypsum addition for Atbara cement clinker, Department of Mining, Faculty of Engineering, Khartoum University
[3] Krishna (October, 2017), Initial and Setting time of Cement, Civil Read
[5] Katalin Szilágyi, (2015), Understanding the rebound surface hardness of concrete, Journal of Civil Engineering & Management, Vol 21 (2), pp 185-192 [6] Krishna (October, 2017), Initial and Setting time of Cement, CivilRead

This is because most of these criteria were proposed by civil engineers who focus on the influence of the validity of the data for structural modal analysis, and who may ignore the influence of sensor placement on the wireless network’s performance.
On the other hand, the communication and computer experts, who lack of the knowledge of structural modal analysis, consistently adopt the placement proposed by civil engineers, and do not consider the wireless sensor network’s performance [2].
This paper presents a method that combines the requirements of civil engineering structures and wireless communications to optimize sensor placement.
References [1] Kumar K R, Narayanan S: Smart Mater Struct, 2008，17：1-15 [2] Kammer D C: Journal of Guidance: Control and Dynamics, 1991, 14(2): 251-259 [3] Heylen W: Journal of Vibrations and Acoustics, 1990, 112, 468-472 [4] Udwadia F E: Journal of Engineering Mechanics, ASCE, 1994, 120(2):368-390 [5] Yu L C, Hsu C C: Mobile Networks and Applications, 2000, 3(5): 27-37 [6] Thomas G Carne, Clark R Dohmann.

Oliveira1,d 1University of Minho, ISISE, Department of Civil Engineering, Guimarães, Portugal 2Roma Tre University, Department of Engineering, Rome, Italy 3University of Nottingham, Faculty of Engineering, Nottingham, United Kingdom aalidalalbashi@gmail.com, bstefano.desantis@uniroma3.it, cbahman.ghiassi@nottingham.ac.uk, ddanvco@civil.uminho.pt *Corresponding author Keywords: textile reinforced mortar (TRM); steel-reinforced grout (SRG); pull-out test; alkali-resistant glass fabrics; cyclic behavior.
The second author acknowledges funding by Regione Lazio within the Research Project “RIPARA Integrated systems for the seismic protection of architectural heritage” (2021-2023), by the Italian Civil Protection Department within the Research Project “ReLUIS” (2019-2021) and by the Italian Ministry of Education, University and Research (MIUR), in the frame of the Departments of Excellence Initiative (2018-2022), attributed to the Department of Engineering of Roma Tre University.

Research for The Risk Structure of Large design enterprise’s Projects Based on Hard System Methodology Yin Qin1,a, Dong Bo2,b, Wang Liang3,c 1School of Civil Engineering and Architecture Institute, Wuhan University of Technology, Wuhan, China, 430000 2Wuhan Planning and Design Institute, Wuhan, China, 430000 3School of Civil Engineering and Architecture Institute, Wuhan University of Technology, Wuhan, China, 430000 aYinq0099@126.com, bbd-boo@163.com, c532079921@qq.com Keywords: Hard System Methodology; Risk; Systemic Structure Abstract.
The design papers should be submitted by the professional deputy chief engineer for checking and approving after being finished and the professional deputy chief engineer should be responsible for the quality /progress and other related things of the design documents. 4) Project director, who is equivalent to the manager of the design project, is entrusted by the design enterprise to be responsible for the implementation of the design work.
Therefore the enterprises should pay more attention to the early control in time and carry out the effective control in the design phase of the bidding and signing as much as possible to curb the consequences getting worse in the stage of design implementation. 2) Knowledge dimension (i.e. risk ownership position), corresponding to the classification method of the difference of the risk ownership position, can be divided into the law chief engineer, the director of professional deputy chief engineer, project director and engineer.
For example, risk A, its time dimension, post dimension, nature dimension coordinates are respectively: the signing, project director and professional deputy chief engineer.
3.5 the payment for design Legal director, project leader 3.6 risk caused by the other external factors Legal director, project leader, chief engineer, professional deputy chief engineer The hall three dimensions structure theory apply to the analysis the risks’ attribute after the risk identification of the complex project of large design enterprise.

Research on mesh optimization of the finite element calculation about three-dimensional foundation pit Shilun Feng 1,2,a Yuming Zhou2Pulin Li 2,b Jun Li 2,c Zhiyong Li3bZhiqiang Zhu3b 1 Institute of Civil Engineering, Tianjin University, Tianjin 300072, ChinaP 2 Tianjin Institute of Geotechnical Investigation and Surveying, Tianjin 300191, China 3 China Academy of Launch Vehicle Technology, Beijing, China ashilunfeng@126.com, blipulin101@163.com, clijun411198@163.com, Keywords: ABAQUS 3D finite element Foundation Pit Mesh Optimization Procedure Abstract.
Therefore, a comprehensive analysis of the foundation pit engineering is put in certain difficulty.
Three-dimensional finite element analysis of foundation pit engineering, calculation amount is larger, especially for complex and large foundation pit engineering.
References [1] Jinchang Wang , Yekai Chen ：ABAQUS application in Civil Engineering，Zhejiang University press， p.1-7
[2] Yiwen Zhu, Yuanqi Cai, Han Xu： ABAQUS and Geotechnical Engineering analysis .2005,p2-3

Faculty of Civil Engineering.
Faculty of Civil Engineering, Universiti Teknologi Malaysia.
Malaysian Journal of Civil Engineering 27 Special Issue (1):207-223
Chapter 4 Wood-as an Engineering Material.
ASCE Journal of Structural Engineering.

OYELEKE2,e 1Department of Civil Engineering, Ladoke Akintola University of Technology, Ogbomoso, Nigeria. 2Department of Civil Engineering, Federal Polytechnic, Offa, Nigeria. 3Department of Civil Engineering, Kwara State University, Malete, Nigeria. 4Department of Civil Engineering, Federal Polytechnic, Ede, Nigeria.
Ukpata, Structural Properties of Rice Husk Ash Concrete, International Journal of Engineering and Applied Sciences, 3(3), (2013) 57-62
International Journal of Engineering Research and Applications (IJERA), 3(3) (2013) 133 – 136
International Journal of Engineering and Applied Sciences, 5(4), (2014) 11-16
International Journal of Engineering Research and Applications (IJERA), 3(1), (2013) 1718-1723