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., Harbin Engineering University, Harbin, 150001, P.R China aDr_waseemhelal@eng.kfs.edu.eg, bshidongyan@hrbeu.edu.cn Keywords: Functionally Graded Material, Endodontic prefabricated Post, Finite element analysis, Gradation, Optimization Abstract.
Acknowledgments The paper is funded by the International Exchange Program of Harbin Engineering University for Innovation-oriented Talents Cultivation.
[7] Chung, Y.L., and Chi, S.H., 2001, The residual stress of functionally graded materials, Journal of the Chinese Institute of Civil and Hydraulic Engineering. 13(2001)1-9
Helal, and Dongyan, Shi, Analysis of functionally graded rectangular plate by ANSYS, Key Engineering Materials. 572 (2014) 505-508

Research on Applying the Reborn Resource and New Materials for Energy Saving and Protecting Environment in the Design of Green Ecological Residential Building Design at the Super Cold District Yongmei Qian1, a, Yujie Jin 2,b, Wei Tian 3,c 1,2,3Jilin Institute of Architecture and Civil Engineering, 5088-Xincheng Street, Changchun 130118, China aqym0606@yahoo.com.cn, bjinyujie@jliae.edu.cn, ctianwei@jliae.edu.cn Keywords: reborn resource, materials for energy saving and protecting environment, green ecological residential building Abstract.
To energy saving, environmental protection, ecological construction technology in engineering is the inevitable trend of development.
Of course, these policies should also apply to the transformation of existing residential buildings. 4) It should establish and improve of construction techniques and system of solar: Preparation of design specifications, standards and related atlas, the establishment of the product (system) testing centers and certification organizations, improving the construction inspection and maintenance technical regulations, etc., is solar energy (such as hot water supply) to include construction engineering aspects, and as a premise of "professional" into the building system. 5) It should strengthen the concept of promotion and awareness: to guide people to understand building energy consumption, the built environment, ecological protection and general knowledge, to expand and extend the already mature solar water heating and solar heating application of the concept.
The effective way and design technology on new energy saving materials’ application in ecological residential buildings in cold regions One of effective measures in building materials and material resources: the application of new energy saving materials Building is taken from nature and return to nature's creative engineering, the material used should not harm the human body and the surrounding environment, the construction material adverse impact on the environment should be controlled to a minimum in order to achieve sustainable development objectives, it required research and development of materials recycling and transformation of waste materials to use.

Abdulkareem1, a, Mohd Mustafa Al Bakri Abdullah1, b, Kamarudin Hussin1, c and Khairul Nizar Ismail2,d 1Center of Excellence Geopolymer & Green Technology (CEGeoTech), School of Material Engineering, Universiti Malaysia Perlis (UniMAP), P.O.
Box 77, D/A Pejabat Pos Besar, Kangar, Perlis, 01000, Malaysia. 2School of Environmental Engineering, Universiti Malaysia Perlis (UniMAP), Box 77, D/A Pejabat Pos Besar, Kangar, Perlis, 01000, Malaysia.
In Research Report GC 2, Faculty of Engineering, Curtin University of Technology: Perth, Australia, 2006
Measurement of chloride permeability in superplasticised ordinary portland cement and pozzolanic cement mortars, In Proceeding of the International Conference on Measurements and Testing in Civil Engineering, Lyon, France. 1988, pp. 279–291

Optimization of Aircraft Fuel Dump Rate Towards the Mitigation of Post-Impact Fire Abdulbaqi Jinadu1,a*, Olalekan Adebayo Olayemi1,2,b, Joshua Daniel1,c, Oluwatomiwa John Odenibi1,d, Volodymyr Koloskov3,e, Dmytro Tiniakov4,f 1Department of Aeronautics and Astronautics, Faculty of Engineering and Technology, Kwara State University, Malete, Kwara State, Nigeria. 2School of Engineering, Cranfield University, Cranfield, United Kingdom. 3Department of Applied Mechanics and Environmental Protection Technologies, Faculty of Technogenic and Ecological Safety, National University of Civil Defence of Ukraine, Kharkiv, Ukraine. 4Nanjing University of Aeronautics and Astronautics, Nanjing, China.
Ammar, Performance evaluation and parametric studies on variable nozzle ejector using r134a, Case Studies in Thermal Engineering, vol. 12, (2018) 258–270
Ahsan, Computational fluid dynamics analysis of compressible flow through a converging-diverging nozzle using the K-ε turbulence model, Engineering, Technology & Applied Science Research, vol. 10, no. 1, (2020) 5180–5185

,Kherson,Ukraine,73008 2Kyiv National University of Construction and Architecture, 31, Povitroflotskyi ave , Ukraine,03037 3Cherkassy Institute of Fire Safety of National University of Civil Defence of Ukraine, 8, Onoprienko str., Cherkassy, Ukraine, 18034 аmakarenko.vd@knuba.edu.ua, bgots.vi@knuba.edu.ua, cberdnyk.oyu@knuba.edu.ua, damelina.no@knuba.edu.ua, enesen_ivan@chipb.org.in Key words: stress corrosion, hydrogen, blistering, gas pipelines, crack resistance.
The area of brittle failure of the main gas pipeline after the tests The issue of brittle failure of engineering metal structures has been developed in almost all technically developed countries for more than 70 years [5, 6].
Series: Materials Science and Engineering. – Innovative Technology in Architecture and Design (ITAD 020). 907 012036
Key Engineering Materials. 864 115-121
Reliability and durability of railway transport engineering structure and buildings

. - Kazan: Kazan state University of architecture and civil engineering, 2010. - Part 2. - P. 108-112
Engineering formation of a nuclear power plant safety system // (2018) International Journal of Mechanical Engineering and Technology, 9 (10), pp. 1406-1414 [11] Abramov, R., Sokolov, M., Surilov, M., & Morozov, I. (2018).
International Journal of Mechanical Engineering and Technology, 9(7), 1112-1119

Characterization of Conventional and Modern Curing Techniques in Concrete Wasim KHALIQ1, a* and Waqas JAVAID1, b 1School of Civil and Environmental Engineering (SCEE), National University of Sciences and Technology (NUST), Sector H-12, Islamabad 44000, Pakistan.
Saravanan, Development of normal strength and high strength self curing concrete using super absorbing polymers (SAP) and comparison of strength characteristics, International Journal of Research in Engineering and Technology, 03 2014, 07
Arunachalam, Effects on concrete strength by three types of curing methods, International Journal of Engineering and Management Research, 4 2014, 6-8
Buellah, Internal curing of concrete using prewetted light weight aggregates, International Journal of Innovative Research in Science, Engineering and Technology, 3 2014, 7

School of Chemical Engineering, Zografou Campus, National Technical University of Athens, 9 Heroon Polytechneiou St., 15780 Athens, Greece; ppandis@chemeng.ntua.gr 2.
Institute of Chemical Engineering Sciences (ICE-HT), Stadiou St., Platani, 26504 Patras, Greece.
Mazumder;p, Treatment of Chrome Tannery Wastewater by Biological Process - A Mini Review, International Journal of Environmental and Ecological Engineering, 7 (2013)
Ghosh;, Effect of Incorporating Silica Fume in Fly Ash Geopolymers, International Journal of Civil and Environmental Engineering, 5 (2011)

Simulating and Testing Study on Construction Temporal-spatial Effect of six lanes Multi-arch Tunnel Xiaoguang Jin1, 2, a, Bingwei Cui1, 2, b, Mengjun Wu3, c 1School of Civil Engineering, Chongqing University, Chongqing 400045, China; 2Key Laboratory of New Technology for Construction of Cities in Mountain Area (Chongqing University), Ministry of Education, Chongqing 400045, China; 3China Merchants Chongqing Communications Research & Design Institute Co., Ltd., Chongqing, 400067, China; aJxgcqu@163.com, bCuibw2009@126.com, cWumenjun@ccrdi.com Keywords: six lane multi-arch tunnel; temporal-spatial effect; numerical simulation; model testing Abstract: Owing to several construction procedures of bidirectional 6 lane multi-arch tunnel, with the characteristics of large dig span and flat cross section, the wall rock and support structure of which will be repeatedly disturbed by multiple excavations, so their mechanical and deformational features are remarkably complicated.
Based on engineering geology survey report details, selecting K48+510 for calculation cross section, numerical model is established.
Acknowledgement This research is supported by Chongqing key scientific and technological projects (CSTC, 2011AC6212) and Mountain geotechnical engineering academic team of Chongqing University References [1] N.Zhuang, K.Z Zhu, J.W Li.
Chinese Journal of Rock Mechanics and Engineering, 2005, 24(22): 4042-4047(in Chinese)

College of Municipal and Mapping Engineering, Hunan City University, Yiyang 413000, China; 2.
College of Civil Engineering, Hunan University, Changsha 410082, China; 3.
Zhongye Changtian International Engineering Co., Ltd, Changsha 410007, China a hunanweizhang@163.com b yangliu@163.com c waihe409@21cn.com d 469862473@qq.com e 275408251@qq.com Keywords: Sludge, hazards, disposal, method Abstract: Sludge on the ecological environment and human health dangers of long-term potential, the disposal of sludge should focus harmless, resources and energy of.
Currently heating researches using activated sludge is usually prepared by conventional heating, compared with conventional heating, microwave heating is a new energy technology, has a high energy efficiency, heating speed, ease of automation control, etc., is a very promising way of heating in materials engineering has been widely used [36,37], but reports prepared by microwave heating the adsorbent sludge treatment at home and abroad are rare.