Search results

Geopolymer is generally defined as a class of aluminosilicate binding materials, synthesized by thermal activation of solid aluminosilicate-based materials (e.g. fly ash, metakaolin, slag) with an alkali metal hydroxide and silicate solution [4].
The raw materials used were: Magnesium oxide (MgO).
Thermal conductivity of geopolymers and some common engineering materials.
Thermal resistance of geopolymers and some common engineering materials.
Ghosh, Effect of mix composition on compressive strength and microstructure of fly ash based geopolymer composites, ARPN Journal of Engineering and Applied Sciences 4 (2009) 68-74

Bacroix 2 1 Faculty of Physics and Nuclear Techniques, AGH University of Science and Technology, al.
The recrystallization process in polycrystalline material was studied using the newly developed two-dimensional model based on the vertex concept.
In the model presented below the microstructure of polycrystalline material is represented by two-dimensional network of grains.
In the model presented below the microstructure of polycrystalline material is represented by a twodimensional network of grains.
Gerber: Metals and Materials Int., Vol. 9 (2003), p. 9 [7] M.C.

Photoinitiation Synthesis And Properties Of Anionic Polyacrylamide Linlin ZHANG, Rongchun NIE, Shuai MA, Yinyu SUN College of Chemical Engineering ,Anhui University of Science and Technology , Huainana 232001,Anhui,China zhanglinlin1860@yahoo.cn Key words : anionic polyacrylamide; solubility; flocculation; transmittance Abstract:Through the photoinitiation technology synthetizes anionic polyacrylamide(APAM), with the raw material of sodium acrylate (AANa) and acrylamide (AM).
Experiment 1.1 Samples and reagents The Raw materials are shown as follow: acrylamide(AM) were purchased from Tianjin Bodi Chemical Co., Ltd. ; sodium hydroxide were purchased from Shanghai Jianxin Chemical Co., Ltd., Reagent Factory ;acrylic acid were purchased from Tianjin Bodi Chemical Co., Ltd. ; photoinitiator were purchased fromLaboratory Preparation.
(In Chinese) [4] Juntai Liu: Tappi Journal, Forum Vol. 78 (1995), p. 149-150
[5] Xinglong Wang , Huang Zhou and Yaojun Zhang: Journal of Functional Polymers. 18 (2005), p. 660-664.

In one project, you can calculate several options for geometry, materials, loads.
Setting the properties of the materials.
Set the properties of materials. 3.
Science and education, 1 (214), (2015) 200-207
Science and education. 3, (2018) 139-152

Table 1: The identification table of risk factors of a harbor highway project Project phase Risk factor A Initiative phase Feasibility study on the lack of a comprehensive survey and analysis Unclear project requirement books on objectives and requirements Inappropriate siting Bidding Documents are not standardized Improper design company Improper supervision company National policy changes Improper construction model Contract phase Contract documents on the lack of the legal effect Indefinite contract price Inappropriate contract model text Improper contract model of the BT project Insufficient attention to contract management Contract managers lack of professional quality and risk awareness Inadequate contract management and risk control mechanisms Imperfect legal system under the BT model Construction phase Inappropriate choice of building materials supply Changes in prices of construction materials Construction safety accidents Immaturity or Inappropriate construction technology
supply 0.059 Changes in prices of construction materials 0.088 Construction safety accidents 0.088 Immaturity or Inappropriate construction technology 0.059 Confused construction management 0.118 Lag of the project funds 0.118 Too many changes to the contract 0.088 Low quality of the supervising engineer 0.088 Construction design changes 0.088 Unreasonable design scheme 0.088 Delay of construction period caused by the emergencies 0.118 Repurchase phase 0.168 Failed in project inspection 0.250 The repurchase funds not in place for change of government 0.250 Disagreement in repurchase price 0.125 Over budget in project inputs 0.125 Disbursement funds not in place during repurchase phase 0.250 Identify the risk assessment criteria.
References [1] Ward.chapman: International Journal of Project Management.
Forum Vol. 21 (2003), p. 98-104 [2] Akintola S Akintoye: International Journal of Project Management.
USA，1983 [5] Pawlak Z: International Journal of Information and Computer Science. (1982), p.341-356 [6] Pawlak Z: European Journal of operational research. (1997), p.48-57 [7] Lijuan Chen:East China Highway.

Material Properties Material properties are considered for the optimization process with the below mentioned values.
The optimized material distribution is shown in Fig .7.
Acknowledgement This project is supported by the Important National Science & Technology Specific Projects (Grant No. 2012ZX040080041) References [1] Hai-jun X, Jian S.in: Failure analysis and optimization design of a centrifuge rotor.Eng Fail Anal 2007;14:101–9
[2] Necmettin Kaya, Idris Karen, Ferruh Ozturk. in:Re-design of a failed clutch fork using topology and shape optimisation by the response surface method, Materials and Design 31 (2010) 3008–3014
International Journal of Solids and Structures 47 (2010) 1618–1640

Pisarenko Institute for Problems of Strength of the National Academy of Sciences of Ukraine, Odesa I.I.
Construction materials More than 300 participants were registered, 134 reports were submitted.
Organizational Committee of Conference Antoniuk N.R. – technical editor of «OSACA bulletin» journal, PhD, Associate Professor, vestnik@ogasa.org.ua.
Sc., Professor, Shvabyuk@lutsk-ntu.com.ua Hendrik Doss – Professor, Mainz Universsity of Applied Sciences (Germany), hendrik.doss@dosscom.de Kyriazopoulos A. – Professor, University of West Attica, akyriazo@teiath.gr Demakos K. – Professor, University of West Attica, cdemakos@gmail.com Pnevmatikos N. – Associate Professor, University of West Attica, pnevma@teiath.gr Milkovich Marin – rector of the University «Sjever», professor, rektor@unin.hr

Therefore, RST method can be taken into account for spinners to choose suitable fiber materials in order to ensure the quality and reduce cost.
The reasons are the high degree of variability in raw materials, multistage processing, and a lack of precise control on process control [1].
Before real production, different raw materials will be logically selected with quality rule in order to improve quality of product and to minimize production cost.
Table 1 Discrete data of material properties and yarn strength Samples no.
Pawlak, Rough sets,International Journal of Computer & Information Science. 11(1982)341-356

ISVC 2013 had drawn the attention of researchers from various disciplines: Advanced Intelligent Structure, Bio-inspired Smart Materials and Structures, Materials for energy storage, Active Materials, Mechanics and Behavior, Vibration and Control, Modeling, Simulation, Control and Applications, Fuzzy System and Fuzzy Control, Management Information Systems, etc.
Only original and unpublished paper would be considered, and 107 papers have been accepted for presentation at the conference and will be published by TTP, in Applied Mechanics and Materials (AMM) Journal (ISSN: 1660- 9336), which is online available in full text via the platform www.scientific.net.
Lin, Norwegian University of Science and Technology, Norwegian Y.J.
Li, University of Georgia, USA G.H.Gao，Henan Institute of Science and Technology ,China M.J.
Lin, Norwegian University of Science and Technology, Norwegian Y.W.

Low alloyed steel is widely applied as casting material recently, the main alloy elements are Mn, Si, Cr, etc. these elements not only enhance the strength of the material but also improve the plasticity, toughness and solder ability.
Strict limitation of the contents of C, S, P guarantee the plasticity and toughness of the cast material, as well as ensure its solder ability in order to meet the welding requirement when welding 2 different material together(the cast steel and normal steel tube).
Material selecting in china recently use Germany specification as reference.
The material properties adopting in the finite element analysis are: elastic mould amount E=2.06×105N/mm2, poisson ratio υ=0.3.
References [1] Jun Li, Xing Wei, Xiaozhen Li , etc. in: Research on bearing safety of cast-steel joint of large steel reticulated shells , edited by Progress in Safety Science and Technology Volume 4: Proceedings of the 2004 International Symposium on Safety Science and Technology(2004),p.533-538 [2] Xianzhong Zhao, Guannan Wang, Yiyi Chen, etc. in: Experimental study on the structural behavior of cast-steel joint of the Laoshan Velodrome for the Beijing Olympics, edited by Jianzhu Jiegou Xuebao/Journal of Building Structures (2008),p. 10-15 (in Chinese) [3] L.W Tong, H.Z Zheng, Y.Y Chen, in: Comparison between a cast steel joint and a welded circular hollow section joint, edited by Welding in the World (2006), p.478-483(in Chinese) [4] Sonsino C.M, Umbach R, in: Hybrid design concept using high-strength cast steel inserts for tubular joints of offshore structures, edited by Journal of Offshore Mechanics and Arctic Engineering(1998), p.10-19 [5] Xueyi Fu, Lei Gu, Xianqiao Yang, etc