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Silitonga3.4 1Department of Mechanical Engineering Universitas Sumatera Utara, 20222 Medan, Indonesia 2Department of Mechanical Engineering Universitas Muhammadiyah Sumatera Utara 20238, Medan Indonesia 3Center of Renewable Energy, Department of Mechanical Engineering, Politeknik Negeri Medan, 20155 Medan, Indonesia 4Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, Faculty of Engineering and Information Technology, the University of Technology Sydney, NSW 2007, Australia asuherman@umsu.ac.id.
Sharma, “Journal of the Taiwan Institute of Chemical Engineers Study of ’ co-solvent effect ’ on production of biodiesel from Schleichera Oleosa oil using a mixed metal oxide as a potential catalyst,” J.

Afwan Irsyad1,a*, Rita Irmawaty2,b and Fakhruddin2,c 1Civil Engineering Magister Program, Faculty of Engineering, Universitas Hasanuddin, Makassar, Indonesia 2Department of Civil Engineering, Faculty of Engineering, Universitas Hasanuddin, Makassar, Indonesia amuhafwanirsyad@gmail.com, brita_irmaway@yahoo.co.id, cfakhrud.civil05@gmail.com Keywords: Reinforced Concrete (RC) beam, Geopolymer mortar panel (GMP), PVA fiber, Shear reinforcement Abstract.
FA-GPC material is an innovative and environmentally friendly engineering composite that offers numerous benefits in terms of reducing the usage of ordinary Portland cement (OPC) [9].

Thermal Degradation of Natural Rubber Vulcanizates Reinforced with Organomodified Kaolin Intercalates CHINEDUM Ogonna Mgbemena1,a*, IKUOBASE Emovon1,b 1Department of Mechanical Engineering, Federal University of Petroleum Resources, Effurun, Delta State, Nigeria a*mgbemena.ogonna@fupre.edu.ng, bemovon.ikuobase@fupre.edu.ng Keywords: Kaolin, Natural Rubber, Rubber Seed Oil, Tea Seed Oil, Thermal behaviour, Vulcanizates.
It has been established and reported that Natural Rubber without fillers have no strength and cannot be utilised in key engineering applications [4,5].
Classic examples of fillers include Calcium carbonate, talc, carbon black, kaolin, precipitated silicas and silicates[6–11] Natural Rubber vulcanizates (NRV) have numerous industrial applications in automobiles, aerospace, industrial machinery, electrical engineering, civil engineering and packaging.
This present study will enable engineers and materials scientists to understand the thermal degradation of NRV and decide suitable applications of the vulcanizates. 2.

Vissakodeti2,b 1Full-Time Ph.D Research Scholar, Department of Mechanical Engineering, UCEK, Jawaharlal Nehru Technological University Kakinada, Kakinada, 533003, A.P, India. 2Professor, Department of Mechanical Engineering, UCEN, Jawaharlal Nehru Technological University Kakinada, Kakinada, 533003, A.P, India.
Nomenclature a Length of the composite plate b Width of the composite plate T The total thickness of the composite plate n uni-axial tension modulus in the fibre direction k plane strain bulk modulus normal to the fibre direction l cross modulus m shear moduli in planes normal to the fibre direction p shear moduli in planes parallel to the fibre direction cr CNT reinforcing phase volume fraction, Em Young’s modulus of matrix material ϑm Poisson’s ratio of matrix material tpe The thickness of the Piezoelectric Actuator t The thickness of half of the composite plate pe Piezoelectric Actuator mx, my Moments produced by PZT actuators plate 𝜀𝑝𝑒 Strain in the piezoelectric actuator Introduction Composite materials are extensively utilized in aerospace engineering owing to their high strength to weight ratios, and these can be tailored as per requirements.
Because of these extraordinary properties of CNTs, they have attracted the attention of many researchers to determine their effects on bending and vibration of CNTs-reinforced engineering structures.
Structural health monitoring of aircraft structures, civil structures and ship structures can be performed using these CNT reinforced smart materials.
Properties of CNT, lamina and PiezoelectricActuator Engineering constants [GPa] Graphite/ epoxy (G) Kevlar/ epoxy(K) SWCNT (CNT) Polystyrene PZT(G1195) Actuator E11 137.9 87 – 1.9 63 E22 8.96 5.5 - - - G12 7.20 2.2 - - - ν12 0.62 0.34 - 0.3 0.3 nr 450 kr 30 mr 1 pr 1 lr 10 The dimensions of the composite plates and positions of the piezoelectric actuators are shown in Fig. 3 as follows, Fig. 3.

Introduction The study of oceans needs underwater vehicles such as AUVs and ASVs with concrete aims to enhance the effectiveness of civil society in economic as well as in other naval facilities, e.g. the biological discovery of ocean resources, disaster and tsunami warnings, self-operated underwater military means, etc.
AUV/ASV Dynamics and Control Structure AUV/ASV Dynamic Model According to the Society of Naval Architects and Marine Engineers (SNAME) [8], the six motion components of an underwater vehicle are defined as surge, sway, heave, roll, pitch, and yaw, which are presented in Fig. 1.
No single formalism or language of an engineering process can possible capture all the knowledge and information needed to solve complex control systems such as the AUV/ASV’s controller.
M., Design of an adaptive nonlinear controller for depth control of an autonomous underwater vehicle, Journal of Ocean Engineering (32), ISSN 0029-8018, Elsevier, (2005), pp. 2165–2181
SNAME (the Society of Naval Architects and Marine Engineers) Technical and Research Bulletin No. 1-5, New York 18, N.

The researches about BOT in transportation and engineering management field become one of most hot topic problem at broad and home [1-3].
On the other hand, risk of BOT attracts more attentions in engineering management fields [5].
Optimization and Engineering, Vol.28, No.7, (2006), pp.225-247
Journal of Construction Engineering and Management, Vol.133, No.5, (2007), pp.385-392
Computer-Aided Civil and Infrastructure Engineering, Vol.22, No.1, (2007), pp.6-18.

Properties and Microstructure of High Strength Concrete Incorporating Different Supplementary Cementitious Materials Mohamed Amin1,a, Nirmen AbdEl-Aziz2,b, Ibrahim Saad Agwa1,c and Khaled Abu El-Hassan3,d* 1Civil and Architectural Constructions Department, Faculty of Technology and Education, Suez University, Egypt 2Master of Science, Structural Engineering Department, Faculty of Engineering, Mansoura University, Egypt 3Delta University for Science and Technology, Civil Engineering Department, Faculty of Engineering, Egypt ah_scc@yahoo.com, beng.meme_zizo@yahoo.com, cibrahim.agwa@suezuniv.edu.eg, deng_khaled1984@hotmail.com Keywords: Microstructure; Mineral materials; High strength concrete; Metakaolin; Compressive strength; Silica fume.
[45] Mohamed Amin, Khaled Abu el-hassan, Omar Mohamed Omar Ibrahim, Ahmed Mohamed Nasr, Influence of Environmentally Eco-Friendly Pozzolanic Materials on Microstructures and Durability of Environmentally-Friendly High-Strength Concrete, Design Engineering, Issue: 5, May 2021, pp. 1158 – 1177.

A Review of Rafting in Nickel-Based Single Crystal Superalloys Zhiyuan Yu1, a, Zhufeng Yue1, b *, Wei Cao1, c and Xinmei Wang1, d 1 School of Mechanics, Civil Engineering and Architecture, Northwestern Polytechnical University, Xi’an 710072, China ayuzhiyuan93@mail.nwpu.edu.cn, bzfyue@nwpu.edu.cn, c759607855@qq.com, dwangxinmei@nwpu.edu.cn Keywords: Single crystal superalloy; rafting mechanism; creep; experimental analysis; numerical simulations.
Materials Science and Engineering: A. 527(16) (2010) 4458-4465
Materials Science & Engineering A. 279(1–2) (2000) 160-165
Materials Science & Engineering A. 272(2) (1999) 398-409
Materials Science & Engineering A. 257(2) (1998) 312-321.

An Exploratory Study of the Cutting-Edge Development of Nanotechnology Pertaining to the Construction Industry Laetitia Cook1,a*, Cameron Wantenaar1,b and Bronwyn Wise1,c 1Department of Construction Economics, Faculty of Engineering & The Built Environment, University of Pretoria 0002, South Africa aLaetitia.cook@up.ac.za, bu16036337@up.ac.za, cu16057768@up.ac.za Keywords: Nanotechnology, Nanoparticles, Sustainable Construction, Building Materials.
IOSR Journal of Electrical and Electronics Engineering, I(1), 08-11
Journal of Mechanical and Civil Engineering, 15(1), 53-56
International Journal of Innovative Technology and Exploring Engineering, 8(11S), 286-291
International Journal of Engineering Research and Applications, 2(5), 1077-1082

Biogas Production from Palm Oil Mill Effluent Using Dielectric Barrier Discharge Integrated with the Aerated Condition: Evaluation Based on Stoichiometric Simulation and Kinetic Study Reni Desmiarti1,a*, Maulana Yusup Rosadi2,b, Ariadi Hazmi3,c, Muhammad Miftahur Rahman4,d, Nofri Naldi5,e, Joni Aldilla Fajri6,f 1Department of Chemical Engineering, Universitas Bung Hatta, Padang 25147, Indonesia 2Department of Civil Engineering, University of Borobudur, Jakarta, 13620, Indonesia 3Department of Electrical Engineering, Andalas University, Padang 25166, Indonesia 4Department of Chemical Engineering, Gajah Mada University, Yogyakarta 55281, Indonesia 5Department of Chemistry, Andalas University, Padang 25166, Indonesia 6Department of Environmental Engineering, Universitas Islam Indonesia, Yogyakarta 55584, Indonesia a*renitk@bunghatta.ac.id, byusufrossadi@gmail.com, cariadi@eng.unand.ac.id, dmidorimamiftah@gmail.com, enofrin383@gmail.com, fjoni.af@uii.ac.id Keywords: aerobic; biogas