Zobrazeno 1 - 10
of 60
pro vyhledávání: '"Marwan Effendy"'
Publikováno v:
Bulletin of Chemical Reaction Engineering & Catalysis, Vol 19, Iss 2, Pp 340-349 (2024)
Glycerol in large quantities as a by-product of biodiesel production is a promising feedstock to be converted into more valuable products such as acetin. In this work, acetin converted from glycerol acetylation with acetic acid was performed over gra
Externí odkaz:
https://doaj.org/article/eeb77448c2cc49eea440a35d2b68b3a1
Publikováno v:
Engineering Proceedings, Vol 63, Iss 1, p 15 (2024)
This study aimed to investigate the influence of Al2O3 nanoparticle concentration and flow rate on the convective heat transfer coefficient in a heat sink. A testing apparatus was constructed to examine a microchannel heat sink coupled with an Al2O3
Externí odkaz:
https://doaj.org/article/1d275accf2fd45bfba89b5f946179b2e
Autor:
Ngafwan Ngafwan, Marwan Effendy, Gatot Supangkat Samidjo, I. Gusti Ketut Puja, I.N.G. Wardana
Publikováno v:
Arabian Journal of Chemistry, Vol 16, Iss 4, Pp 104568- (2023)
A bio-catalyst made of natural resources, such as Carica papaya latex, is very challenging for nanoparticle separation. In addition, differences in thermal conditions between nanoparticles affect the movement of substances in the separation process.
Externí odkaz:
https://doaj.org/article/1f8ec188e38a4124beae8128106fc023
Autor:
Ratna Kartikasari, Marwan Effendy
Publikováno v:
Journal of Materials Research and Technology, Vol 15, Iss , Pp 409-415 (2021)
The austenitic stainless-steel biomaterial, AISI 316L stainless steel, is one of the most widely used for orthopedic or prosthetic implant devices because it is easy to manufacture at a relatively low cost. However, corrosion is a challenging issue r
Externí odkaz:
https://doaj.org/article/a319286e69ab42ada3f7ee7da3d47a53
Autor:
Nurfa Anisa, Djarot B. Darmadi, Sugiono Sugiono, Ngafwan Ngafwan, Marwan Effendy, I.N.G. Wardana
Publikováno v:
Arabian Journal of Chemistry, Vol 15, Iss 7, Pp 103952- (2022)
Biotechnology-based enzymes are challenging in reducing production costs and presenting environmentally friendly technologies. The study deal with an experimental investigation of the bio-catalyst made of Carica-papaya latex in recycling used fibre p
Externí odkaz:
https://doaj.org/article/c1bbc11e7d4342f285de7a53174d46f4
Publikováno v:
Logista: Jurnal Ilmiah Pengabdian Kepada Masyarakat, Vol 4, Iss 2, Pp 63-69 (2020)
Tulisan ini melaporkan kegiatan pengabdian pada masyarakat yang dilaksanakan di Sekolah Menengah Kejuruan (SMK) Harapan Kartasura. Pengabdian ini difokuskan pada siswa kelas 3 (tiga) yang siap lulus. Pengabdian ini bertujuan untuk memberikan pengetah
Externí odkaz:
https://doaj.org/article/f9ff79c6f9de4712886dc840e5b8dd49
Publikováno v:
Accurate, Vol 1, Iss 2, Pp 19-25 (2020)
The braking process is the basis in the making of the PWM speed control system in order for electric cars to be able to stop automatically and increase the driving safety. The usage of an electric motor as a wheel drive for an electric car allows con
Externí odkaz:
https://doaj.org/article/32817f28c3b44073ac27e29c196f02c8
Publikováno v:
Case Studies in Thermal Engineering, Vol 26, Iss , Pp 101063- (2021)
The processing of waste oil into diesel-like fuel (DLF) is a challenging issue related to waste management and energy supply. This paper describes an experimental study of compression ignition (CI) engine using blended fuel between diesel and distill
Externí odkaz:
https://doaj.org/article/05f2dbd3fb1848d58c2414a385ce83a6
Publikováno v:
Media Mesin, Vol 17, Iss 1 (2017)
Biomassa (ampas aren dan sekam padi) merupakan bahan hayati yang biasanya dianggap sebagai sampah dan sering dimusnahkan dengan cara dibakar. Biomassa yang berasal dari limbah pertanian ini menjadi masalah umum didaerah pedesaan karena mengganggu lin
Externí odkaz:
https://doaj.org/article/ed8a931ff86244a58aac06419e3b461f
Publikováno v:
Media Mesin, Vol 8, Iss 1 (2017)
Masalah yang sering muncul bagi daerah yang sumurnya dalam adalah cara mengangkat air dari sumur. Pada sisi lain kinerja pompa dibatasi oleh tinggi tekan (head) untuk daya tertentu. Dari permasalahan ini akhirnya dikembangkan pompa jet atau sering di
Externí odkaz:
https://doaj.org/article/e9aaf474dcd6414d8009c7f67322b68b