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Indonesia Natural Zeolite as Heterogeneous Catalyst for Biodiesel Production Bachrun Sutrisno1,a, MUHAMMAD Alif1,b, GENTA Zikriani1,c, ARIF Hidayat1,d* 1Chemical Engineering Department, Universitas Islam Indonesia, Indonesia abachrun.sutrisno@uii.ac.id, b16521016@students.uii.ac.id, c16521033@students.uii.ac.id, d*arif.hidayat@uii.ac.id Keywords: Indonesia Natural Zeolite, Heterogeneous Catalyst, Biodiesel Production, Kapok Seed Oil Abstract.
However, the use of homogeneous catalyst has many drawbacks, such as requiring advance process for product purification, further catalyst separation, and not reusable. the heterogeneous catalyst have been started to be developed in biodiesel production to eliminate limitations related to the homogeneous catalyst.
Forum, 382 (2018) 280-285.

Preparation of Ni/YSZ Anode Material using Gel-tape Casting and Performance Analysis YI Zhongzhou1, a, ZHAI Fengrui 1,b, LI Ying 1, c, LIU Wei 1, d and XIE Zhipeng2,e 1 College of Science, Honghe University, Yunnan 661100, P.R.China; 2 Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, P.R.China a yizhongzhou @tsinghua.org.cn, b zhaifr0873 @126.com, cwuwei_75 @163.com, d liuwei4728@126.com, e xzp @tsinghua.edu.cn Keywords: Ni /YSZ anode material; gel-tape casting; electrical conductivity; microstructures Abstract.
X-ray diffraction (D8 Advance, Germany Bruker Company) with Cu Kα radiation (λ=0.1541nm) was used to analyze the phase present in specimens.
Batawi: European Fuel Cell Forum, Oberrohrdorf, Switzerland, Vol. 1 (2004), p. 193-200

Very advanced works have been done by Chenot, Fourment et al. from CEMEF in France and the corresponding software product FORGE® is largely used in the forging industry [7,8].
Simulation of axi-symmetrical forging process by Inverse Approach, Materials Science Forum Vols. 675-677 (2011) pp 1007-1010
“An Axisymmetric Inverse Approach for Cold Forging Modelling”, “Engineering Letters, Vol. 18, Issue 4, pp. 376-383, 2010

.: Materials Science Forum Vol.534-536 (2007), p. 1333-1336 [2] K.
Shintani et al.: Journal of the Society for Precision Engineering Vol.76 (2010), No.7 p. 809-813 [3] H.
Ohmori et al.: Advanced Ceramics Machining, CRC Press (2007), p. 147-178 [4] K.

Engineering and technology of future: monograph/ A.G.
Materials Science Forum.
The possibility of casting surface alloying by nanopowders, Advanced Materials Research, Vol. 880 (2014) pp. 272–275

Mining and protection of non-material cultural heritage solid advanced.
Advice through the issuance of" historical culture reader"," historical cultural forum held", Construct history and culture wall, Set the propaganda painting, murals, Rolling broadcast commercials and other forms in the public occasion.
Value Engineering, Vol. 9 (2011), p. 314

Cohen 3,c 1 Laboratory for Biomechanics and Biomaterials, Hannover Medical School, Anna-von-Borries-Str. 1-7, 30625 Hannover, Germany 2 Corrosion Research Center Nano-Bio & Advanced Materials, Sami Shamoon College of Engineering, P.O.Box 945, 84100 Beersheva, Israel 3 Department of Biotechnology of Bioengineering, Ben-Gurion University of the Negev, Beer-sheva, Israel a f.witte@web.de, bamir@sce.ac.il, cscohen@bgu.ac.il Keywords: magnesium, alloy, biodegradable, implant, bone Abstract.
Aizawa, Materials Science Forum 2000, 350-351 349-358

Bhat1,e* 1Electrical, Computer, and Systems Engineering Department, Rensselaer Polytechnic Institute, Troy, NY 12180, USA adahalr@rpi.edu, bschowdhury@monolithsemi.com, chitchc@rpi.edu, dchowt@rpi.edu, ebhati@rpi.edu Keywords: Electrochemical etching, SiC, Power device, wide bandgap semiconductor, IGBT Abstract.
Acknowledgement The authors would like to thank the support staff of the Rensselaer Polytechnic Institute Micro-Nano-Clean-Room (RPI MNCR).This work was supported by the Advanced Research Projects Agency–U.S.
Choyke, “A Short Synopsis of the Current Status of Porous SiC and GaN”, Materials Science Forum, Vols. 483-485 (2005) pp. 251- 256

Response of Hot-Extruded Al–Mn–Sc–Zr Alloy to Annealing with Constant Heating Rate Martin Vlach1,a, Ivana Stulikova1,b, Bohumil Smola1,c, Hana Cisarova1,d, Tomas Kekule1,e, Jaroslav Malek2,f, Dhritti Tanprayoon3,g, Volkmar Neubert3,h 1Charles University in Prague, Faculty of Mathematics and Physics, Ke Karlovu 3, 121 16 Prague, Czech Republic 2Czech Technical University in Prague, Faculty of Mechanical Engineering, Karlovo namesti 13, 121 35 Prague, Czech Republic 3Institut für Materialprüfung und Werkstofftechnik, Sachsenweg 8, D-38678 Clausthal-Zellerfeld, Germany amartin.vlach@mff.cuni.cz, bivana.stulikova@mff.cuni.cz, cbohumil.smola@mff.cuni.cz, dhana.cisarova@mff.cuni.cz, etomas.kekule@mff.cuni.cz, fjardamalek@seznam.cz, gdhritti.tanprayoon@tu-clausthal.de, hvolkmar.neubert@gmx.de Keywords: Al3(Sc,Zr) phase; activation energy; electrical resistivity; Al6Mn precipitation; TEM; DSC Abstract.
Dobatkina, in: Advanced Aluminium Alloys Containing Scandium – Structure and Properties, Gordon and Breach Science Publisher, The Netherlands 1998
Forum Vol. 567–568 (2008), p. 357

A Method of Improving Limiting Drawing Ratio ：Differential Temperature Deep Drawing Based on Superplasticity Xuefeng Xu1, Ning Li, Gaochao Wang, Hongbo Dong School of Aviation Manufacturing Engineering,Nanchang Hangkong University,Nanchang, Jiangxi,330063,China 1xfwinf@yahoo.com.cn Keywords: Superplasticity, Numerical simulation, Differential temperature deep drawing, Limiting drawing ratio, 5083 aluminum alloy.
Q.Tong: Mater Sci Forum.Vol.551-552(2007), p.281-286
P.Montgomery, In:Advances in Superplasticity and Superplastic forming,edited by E.
C.Xia, In:Advances in Superplasticity and Superplastic forming, edited by E.