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Pengaruh Pack Carburizing Arang Enceng Gondok terhadap Laju Korosi Cast Iron Alat Turbocharger
Dera, Nurmala Santi
; Indrawan , Indrawan Laria
; Novriyanti , Novriyanti Talango
; Sahional , Sahional Ishak
Majalah Ilmiah Momentum
Vol 21
, No 1
(2025)
Corrosion resistance is a crucial factor in extending the service life of cast iron turbocharger components, particularly in corrosive environments. One effective approach to enhance corrosion resistance is through the pack carburizing process, which forms a protective carbon layer on the material’s surface. In this study, water hyacinth charcoal was utilized as an alternative carbon source due to its environmentally friendly and economical characteristics. The research aimed to evaluate the eff...
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Numerical Investigation of The Effect of Fin Thickness on Straight Fin Heat Sink on Heat Transfer Performance
Majalah Ilmiah Momentum
Vol 21
, No 1
(2025)
The heat load on computer chips during computing performance is the main topic, so a cooling device is needed. Heat sink is one of the tools commonly applied to reduce the heat load during computing performance of computer systems. Various heat sink configurations have been widely developed and studied to obtain designs with the best thermal performance. This research was conducted to investigate the best design on a straight fin heat sink (SFHS) that has the best thermal and hydraulic performan...
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Comparative Study of Thermoelectric Generator Module Performance with Various Types of Plate Materials
Pramanda, Wibi
; Muhammad, Rouf
; Joko Sumbogo, Yuliarto
; Jiwo Satrio, Hutomo
; Ramadhan Nur, Hamid
; Maladzi, Radhi
; Safi'i, muhamad
; Nuruz Zaman, Mochamad
Majalah Ilmiah Momentum
Vol 21
, No 1
(2025)
Advanced materials are used in thermoelectric generator (TEG) technology to turn heat into electricity using the Seebeck effect, which helps make better use of heat sources. The Seebeck effect is a result of the temperature disparity that exists between the two surfaces of the TEG. The configuration utilized in this investigation comprises several primary components, including the water block, thermoelectric, heat exchanger plate, and heater plate. The water block is positioned on the cold surfa...
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PEMBUATAN DAN KARAKTERISASI EDIBLE FILM DARI SEMI REFINED CARRAGEENAN Kappaphycus alvarezii DENGAN ASAM MALAT SEBAGAI PLASTICIZER
Simon, Abdel
; Nugraeni, Christine Dyta
; Cahyani, Reni Tri
; Nasyirahul Sajidah, Happy Bunga
; Pramita Dewi, Dena
; Salim, Gazali
Jurnal Inovasi Teknik Kimia
Vol 10
, No 2
(2025)
Sampah plastik sudah menjadi masalah serius bagi masyarakat di Indonesia karna sudah mencemari lingkungan baik perairan dan daratan. Salah satu cara yang dapat diambil untuk mengurangi limbah plastik adalah dengan memproduksi edible film menggunakan Kappaphycus alvarezii. Penelitian ini bertujuan untuk menentukan tingkat optimal asam malat dalam proses pembuatan edible film dari semi refined carrageenan (SRC) yang berasal dari rumput laut (kappaphycus alvarezii). Metodologi yang diterapkan dalam...
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PENGARUH VARIASI MASSA Cu DAN SUHU KALSINASI PADA SINTESIS FOTOKATALIS Cu-TiO2/ZnO UNTUK DEGRADASI METHYLENE BLUE DALAM PHOTOCATALYTIC FUEL CELL (PFC)
Kevin, David
; Dampang, Sarah
; Fahmi Hakim, Muhammad
; Yuliasari, Fitri
; Setyowati Putri, Tarishah
; Putri Meylani, Cicilia
Jurnal Inovasi Teknik Kimia
Vol 10
, No 2
(2025)
Perkembangan sektor industri, khususnya industri tekstil, menyebabkan peningkatan pencemaran lingkungan perairan. Salah satu komponen utama dalam industri tekstil adalah zat warna seperti Methylene blue, yang merupakan pewarna organik berbahaya dan dapat mencemari lingkungan. Degradasi Methylene blue dapat dilakukan melalui proses fotokatalisis menggunakan semikonduktor berbasis oksida logam. Penelitian ini bertujuan untuk mengetahui karakterisasi hasil sintesis komposit Cu-TiO2/ZnO, menganalisi...
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PENURUNAN KADAR LIGNIN PADA SERAT PURUN TIKUS (Eloacharis dulcis) SEBAGAI SERAT ALAM MENGGUNAKAN LARUTAN ASAM SULFAT DAN SODA KAUSTIK
Jurnal Inovasi Teknik Kimia
Vol 10
, No 2
(2025)
Serat alam adalah material yang layak untuk digunakan sebagai pengganti serat sintetis, karena keterbaruan dan ketersedian bahan yang melimpah. Purun tikus mengandung lebih dari 30% selulosa sehingga berpotensi untuk digunakan sebagai sumber selulosa dalam berbagai aplikasi. Untuk memperoleh serat berkualitas, serat kasar yang mengandung banyak getah (gum) harus dibersihkan menggunakan larutan seperti NaOH dan H2SO4. Penelitian ini bertujuan untuk mengetahui pengaruh penambahan larutan Asam Sulf...
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Analisa Pengaruh Variasi Bevel Dan Penggunaan Backing Ceramic Terhadap Kekuatan dan Defect Material Baja Grade A Pengelasan Shield Metal Arc Welding (SMAW)
Jurnal Universal Technic (UNITECH)
Vol 4
, No 1
(2025)
Grade A steel plates are commonly used in marine and offshore structures due to their high corrosion resistance. This study investigates the effect of bevel angle variations (30°, 40°, and 50°) and the use of ceramic backing on the mechanical properties and welding defects of Grade A steel using the Shielded Metal Arc Welding (SMAW) method. Welding was conducted with four-pass multipass welding. An experimental approach was employed, including macro visual inspection, dye penetrant, tensile, and...
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A Review of Factors Affecting the Mechanical Performance of PLA in FDM 3D Printing
Saefudin, Slamet
; Samsudi Raharjo
; Ilham Yustar Afif
; Syarifudin
; Purnomo
; Muhammad Omar Rusydi
; Kuzmin Anton
; Muhammad Subri
; M. Edi Pujianto
Advance Sustainable Science, Engineering and Technology (ASSET)
Vol 7
, No 2
(2025)
3D printing has rapidly evolved due to its significant advantages in rapid prototyping. 3D-printed products for industrial applications require stable mechanical properties, which are influenced by various factors. The lack of a comprehensive discussion addressing the factors affecting mechanical properties is the main reason for this review. This article aims to provide an overview of Fused Deposition Modeling (FDM) 3D printing concerning the factors that influence the mechanical performance of...
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Prokes rematri Web-based App: Development, Testing and Construct Validation of Content to Control Undernutrition at Female Teenager as Early Prevent Stunting in Life Cycle
Advance Sustainable Science, Engineering and Technology (ASSET)
Vol 7
, No 2
(2025)
Several measurements of female teenager undernutrition risk factors have been carried out, but the data are limited and not collected well. Technology approach needed to solve at this problem. This research was conducted to develop Prokes rematri web-based app and analysis CFA and EFA as construct validity. The variables and items as content of beta version were obtained from literature reviews and in-depth interviews who stake holder stunting program as subjects. In this study we limit the scie...
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ISOLATION OF AnsB GENE FRAGMENT ENCODING L-ASPARAGINASE 2 ENZYME FROM Serratia plymuthica UBCF_13 AND IT’S IN-SILICO DOMAIN CHARACTERISTIC
Ananda, Abi Awfa Rahman
; Nursyafi, Fauzan Syarif
; Aliya, Lisana Shidiqqin
; Hasibuan, Imron Martua
; Alioes, Yustini
; Endrinaldi , Endrinaldi
; Adrial, Adrial
; Elmatris , Elmatris
; Jamsari, Jamsari
; Lily Syukriani
Bioma : Jurnal Ilmiah Biologi
Vol 14
, No 1
(2025)
Acute lymphoblastic leukemia(ALL) is one of the cancer diseases often occurs in children and causes high mortality in children. One of the chemotherapy treatment suggested is using L-Asparaginase 2. However due to its difficult production process making this approach expensive for the public. Therefore production technology of this enzyme is crucial enabling cheaper for ALL treatment. This study aimed to isolate the AnsB gene sequence from Serratia plymuthica UBCF_13 and perform its further in-...
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