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Mechanical Properties of Ramie Fabric Reinforced Polypropylene Composites Imam Abdurrahman1,a, Ronaldo Wijaya2,b, Lia Amelia Tresna Wulan Asri3,c and Riza Wirawan3,c * 1,2,3Materials Science and Engineering Research Group, Faculty of Mechanical and Aerospace Engineering, Institut Teknologi Bandung aimamab1998@gmail.com, bWijayaronaldo20@gmail.com, clia.asri@itb.ac.id, driza.wirawan@itb.ac.id Keywords: Swelling, Alkali Treatment, Ramie Textile, NFRP, Natural Fibre Composite Abstract.
[5] Keya, K.N., et al., Natural Fiber Reinforced Polymer Composites: History, Types, Advantages, and Applications, Materials Engineering Research, (2019) 69-87
[8] Sonar, T., et al., Natural Fiber Reinforced Polymer Composite Material-A Review, IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE), (2015)
[14] Suriaman, I., et al., The Effect of Alakli Treatment on Improving The Mechanical Properties of Ramie (Boehmeria Nivea), Sugar Palm (Arenga Pinnata), and Coir (Cocos Nucifera) Fibers, ASEAN Engineering Journal, (2021) 177-189
[21] Zulkipli, N.A., et al., Effect of Chemical Treatment on Mechanical and Morphological Properties of Sugarcane Bagasse Reinforced Unsaturated Polyester Composite, Key Engineering Materials, (2022) 26-32.

Zeman, Prevention of cold cracking in ultra-high strength steel Weldox 1300, Archives of Civil and Mechanical Engineering, 14, 3 (2014) 417-424
Enzinger, Residual stresses, microstructure, and mechanical properties of electron beam welded thick S1100 steel, Journal of Materials Engineering and Performance (2021) [6] M.T.
Sisodia, Improving the HAZ toughness of Q+T high strength steels by post weld heat treatment, Materials Science and Engineering, 426, 012012 (2018) [9] M.
Zhao, Effects of heat input on the mechanical properties of butt-welded high and ultra-high strength steels, Engineering Structures, 198, 109460 (2019) [10] D.A.
Pedersen, Improving the fatigue and control performance of loader cranes, Department of Mechanical Engineering, Aalborg University, Special Report, No. 71

Vibration Mitigation Effect of a Friction Damper with Variable Resistances on the Steel Frame Structure Pengbo Zhang 1,a, Yuping Sun 1, 2,b, Shichun Zhao1,3,c 1School of Civil Engineering, Southwest Jiaotong University, Chengdu, China 2 Graduate School of Engineering, Kobe University, Kobe, Japan 3Key Laboratory of Seismic Engineering of Sichuan Province, Chengdu, China apengbozhang1226@yahoo.co.jp, bsun@person.kobe-u.ac.jp, c swjuzsc@163.com Keywords: Friction damper, Hysteretic properties, Variable resistance, Vibration control, Passive control structure Abstract.
Spencer: Supplemental Energy Dissipation, State-of-the-Art and State-of-the-Practice, Engineering Structure, Vol.24(3) (2002), p.243-259
Eng., AIJ, No.573(2003), p.217-222 [7] Pengbo Zhang, Yuping Sun, Takasi Fujinaga and Jaehyouk Choi: Frictional resistance of shear-type dampers with lap gap,Journal of Steel Construction Engineering,AIJ,Vol.16(64)(2009), p.41-48
,AIJ,No.633(2008), p. 2037-2044 [13] Pengbo Zhang,Jae-hyouk Choi,Takashi Fujnaga and Yuping Sun, A Study of Fundamental Performance of Friction Damper with Variable Resistances [J],Journal of Steel Construction Engineering,JSSC,No.63(2009), p. 79-86 [14] Kazuhiko Kasai, Design and installation manual for the passive damping structure, edtied by Japan society of Seismic Isolation ,October 2003

Development of New Green Cement for Oil Wells ALAGU Karthik Valliappan1,a*, RAJA Rajeswary Suppiah1,b, SONNY Irawan1,c and RIDHO Bayuaji2,d 1Department of Petroleum Engineering, Universiti Teknologi PETRONAS, Malaysia 2 Civil Engineering Department, Institut Teknologi Sepuluh Nopember, Indonesia avalagukarthik@hotmail.co.uk, brajarajeswary@petronas.com.my, cdrsonny_irawan@petronas.com.my, da3ridho@gmail.com Keywords: Ordinary Portland cement, Fly-ash, Geopolymer cement, Class G cement, Oil well cement Abstract.
Richmond: Levelton Engineering Ltd.
World Academy of Science, Engineering and Technology
Society of Petroleum Engineers
International Journal of Computational Engineering Research (IJCER)

Analysis of the Test Parameters in the Shear Test of BGA Solder Joints Jong Woong Kim 1,a, Sun Kyu Park2,b and Seung Boo Jung 1,c 1 Department of Advanced Materials Engineering, Sungkyunkwan University, Suwon, South Korea 2 Department of Civil and Environmental Engineering, Sungkyunkwan University, Suwon, South Korea a wyjd@skku.edu, bpsk@skku.ac.kr, csbjung@skku.ac.kr Keywords: Shear test, Pb-free solder, Shear height, Finite element analysis, BGA Abstract.
The JEDEC (Joint Electronic Devices Engineering Council) BGA ball shear standard (JESD22-B117) prescribed that the gap between the edge of the shear ram and the surface of substrate should be larger than 0.05mm and smaller than 25% of the ball height.
In the engineering point of view, too high shear height should be kept away from the test conditions.
Jung: Materials Science and Engineering A Vol. 371 (2004), p. 267 [5] J.W.
Liao: Materials Science and Engineering A Vol. 358 (2003), p. 134

Rady1,2,a, Mohammad Sukri Mustapa1,b, Shazarel Shamsudin1,c, Mohd Amri Lajis1,d, Mohd Idrus Mohd Masirin3,f, Abdullah Wagiman1,g 1Faculty of Mechanical and Manufacturing Engineering, Universiti Tun Hussein Onn Malaysia, Batu Pahat, Johor, Malaysia 2College of Engineering, Wasit University, Iraq 3Faculty of Civil and Enviromental Engineering, Universiti Tun Hussein Onn Malaysia, Batu Pahat, Johor, Malaysia amradhi@uowasit.edu.iq, bsukri@uthm.edu.my, cshazarel@uthm.edu.my, damri@uthm.edu.my, eidrus@uthm.edu.my, fabdulla@uthm.edu.my Keywords: hot extrusion, aluminium chips, tensile strength, DOE, fracture surface Abstract.
References [1] Muhammad Irfan Ab Kadir, Mohammad Sukri Mustapa, Nurul Liyana Rosli, Mohd Shahir Yahya, Mahmod Abd Hakim Mohamad, Abd Khalil Abd Rahim: International Journal of Integrated Engineering Vol. 10 (2018), pp. 53-56 [2] Fogagnolo JB, E.
Msebawi: Material Science and Engineering Technology, Vol. 50(6) (2019):718-723 [5] Gronostajski J, Chmura W, Gronostajski Z: J Mater Process Technol. 125–126 (2002), pp 483- 490 [6] Mohd Sukri Mustapa, Ahmed Sahib Mahdi, Mohd Amri lajis, Mohd warikh abd Rashid: International Journal of Modern Engineering Research (IJMER) Vol. 5 (2015), p 47 [7] S.

Ali1,b MOHAMMAD SUKRI Mustapa2,c ,RAHA Abd Rahman1,d, ABDULLAH Wagiman2,e, MUHAMMAD ISOM Aziz3 1Research Center for Soft Soil (RECESS), Universiti Tun Hussein Onn Malaysia, Malaysia 2Structural Integrity Monitoring Research Group (SIMReG), Faculty of Mechanical and Manufacturing Engineering, Universiti Tun Hussein Onn Malaysia, Malaysia 3PRASARANA BERHAD, Malaysia aidrus@uthm.edu.my, balgowel@yahoo.com, csukri@uthm.edu.my, draha@uthm.edu.my, eabdulla@uthm.edu.my, Keywords: Peat Particles, Asphalt, Road Material, Binder Modifier, Point of Homogeneity Abstract.
References [1] AL Allam, A.M., Mohd Masirin, H.M.I.B.H., Abdullah, M.E., Kamarudin, N.H.M: Influence of using Batu Pahat Soft Clay on the mechanical properties of hot mix asphalt mixture: ARPN Journal of Engineering and Applied Sciences: (2016) [2] Usman, N., Masirin, M.I.M., Ahmad, K.A., Ali, A.s.B.: Application of Recycled polyethylene terephthalate fiber in Asphaltic mix for fatigue life improvement: Lecture Notes in Civil Engineering: (2019) [3] S.
Breakah: Procedia Engineering, vol. 143(2016), p. 1260 [7] S.
Instone: Chemical Engineering Science, vol. 56 (2001), p. 4457 [13] Usman, N., Masirin, M.I.B.M, Ahmad, K.A., Wurochekke, A.A.: Reinforcement of asphalt concrete mixture using recycle polyethylene terephthalate fiber: Indian Journal of Science and Technology: (2016) [14] E.
Nelson: Journal of Engineering Mechanics, vol 135 (2009), p.1265 [17] X.

., State Key Laboratory of High Performance Civil Engineering Materials, China 2School of Materials Science and Engineering, Southeast University, China ashiliang@cnjsjk.cn, bliujiaping@cnjsjk.cn, ccaijingshun@cnjsjk.cn, dgaoyun3888@126.com, eljz@cnjsjk.cn Keywords: Multi-phase carboxylate salt, Sulfate attack, Mechanical performance, Volumetric deformation Abstract.
The enhancement of concrete durability is important for engineering sector.
Carboxylic acid salt is often used in petroleum engineering to avoid the sulfate scaling such as calcium sulfate, barium sulfate etc.
Acknowledgements The work was funded by National Key R & D Program of China (No. 2017YFB0309904), Natural Science Foundation of Jiangsu (BK20161101,BK20160104) and Engineering and technical project (DG1-T02-2017, ZXGS-KJ-01).
Yao, Durability research and engineering applications of high performance concrete, Beijing, China Building Material Industry Publishing, (2004), pp. 568-578

Analysis and evaluation of slope stability under earthquake and rainstorm action Zuyin Zou1, a, Yusheng Zeng 2,b and You Mo 3,c 1School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031,China; College of Urban and Rural Construction, Sichuan Agricultural University, Du Jiangyan 611830, China; 2 College of Urban and Rural Construction, Sichuan Agricultural University, Du Jiangyan 611830, China 3 College of Urban and Rural Construction, Sichuan Agricultural University, Du Jiangyan 611830, China; azzuyin@126.com, bzyusheng@126.com, cmoyou@scfc.edu Keywords: slope.landsl ide.earthquake.rainstorm.stabil ity evaluation.
Engineering Geologic Condition Topography.Two pretty mountain is located in Sichuan province Hanyuan source county all work town, north latitude and longitude29°18′ and the analysis, 120°42', mountain canyon.
The model used in geotechnical parameters, including density, Was in the Angle of cohesion, elastic modulus, Poisson's ratio, these parameters through the indoor and outdoor experiments with engineering analogy and parameter inversion determined comprehensively detailed in Table 1.
The large number of theoretical and engineering example analysis results show that the judge landslide potential sliding surface deformation and failure of parts can be judged according to its shear strain increment size increment of shear strain concentration zone is usually the landslide occurred deep deformation and damage zone.
Journal of rock mechanics and engineering, 2009,47 (1):198-204.

Fig.1 Diagram of the shield crossed the bridge Engineering geology.
The first step is to using MIDAS Civil build bridge upper structure model.
Journal of Railway Science and Engineering,2006,3 (3):35-40
Chinese Journal of Rock Mechanics and Engineering,2007, 26(Supp.1):2601-2607
Chinede Journal of Geotechnical Engineering,2008, 30 (2):299-302