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PENGARUH NYALA API PADA LAS OXY-ACETYLENE TERHADAP KEKUATAN IMPAK PADA PROSES BRAZING BAJA KARBON RENDAH Naufal, Muhammad; Tuparjono, Tuparjono; Rodika, Rodika
Prosiding Seminar Nasional Inovasi Teknologi Terapan Vol. 2 No. 01 (2022): Prosiding Seminar Nasional Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Brazing is a method of joining metal materials through a heating process using an adhesive or filler that has a lower melting point than the melting point of the material to be joined. Oxy-acetelyne welding is a manual welding process where the metal surface to be joined is heated until it melts by an acetylene gas flame through the combustion of C2H2 and O2 with or without filler metal where the joining process is without pressure. In this study using an experimental method. The purpose of this study was to determine the impact strength of low carbon steel after the brazing process with variations in flame and root gap. The variations of the flame used are oxidation flame, neutral flame and carburizing flame with a root gap of 0.4mm, 0.6mm, and 0.8mm. The material used in this research is mild steel St37. The added material used is 3mm diameter brass wire. From the research that has been carried out, it shows that the energy absorbed and the impact value on welding after calculation with the highest value on a neutral flame with a Root gap of 0.8 and the lowest value on a carburizing flame with a Root gap of 0.4.
IMPLEMENTASI METODE WEIGHTED AGGREGATED SUM PRODUCT ASSESSMENT (WASPAS) DALAM SISTEM PENDUKUNG KEPUTUSAN PEMILIHAN PESTISIDA TANAMAN PADI Naufal, Muhammad
Jurnal Teknologi Terapan and Sains 4.0 Vol 7 No 1 (2026): Jurnal Teknologi Terapan & Sains
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/tts.v7i1.26696

Abstract

Penelitian ini mengembangkan sistem pendukung keputusan berbasis web untuk mengatasi subjektivitas dalam pemilihan pestisida pada tanaman padi di Dinas Pertanian Kabupaten Bireuen. Sistem ini menerapkan metode Weighted Aggregated Sum Product Assessment (WASPAS) untuk mengevaluasi 29 alternatif pestisida berdasarkan lima kriteria, yaitu harga (30%), volume racun per hektar (25%), ukuran kemasan (10%), masa kedaluwarsa (20%), dan luas cakupan (15%). Sistem dikembangkan menggunakan bahasa pemrograman PHP dan basis data MySQL dengan model pengembangan waterfall, serta divalidasi melalui pengujian BlackBox Testing. Hasil perhitungan metode WASPAS menunjukkan bahwa Sidabas 500 EC memperoleh nilai tertinggi sebesar 0,82936 sehingga direkomendasikan sebagai pestisida terbaik untuk pencegahan hama pada tanaman padi. Sistem yang dibangun mampu melakukan proses perangkingan secara otomatis dan menyajikan hasil secara terstruktur, sehingga mendukung pengambilan keputusan yang lebih objektif dan efisien dalam upaya meningkatkan produktivitas padi secara berkelanjutan di Kabupaten Bireuen. Kata kunci: Sistem Pendukung Keputusan, Pestisida, WASPAS, Tanaman Padi
Evaluasi Usability Aplikasi Mobile Banking Menggunakan Metode Retrospective Think Aloud dan Post-Study System Usability Questionnaire Naufal, Muhammad; Ahsyar, Tengku Khairil; Jazman, Muhammad; Permana, Inggih
The Indonesian Journal of Computer Science Vol. 13 No. 3 (2024): The Indonesian Journal of Computer Science
Publisher : AI Society & STMIK Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33022/ijcs.v13i3.4039

Abstract

BRKS Mobile is a digital service provided by Bank Riau Kepri Syariah to facilitate its customers in conducting financial transactions via smartphones. Because this application is relatively new, there are problems when running the application. The results of user reviews on playstore comments and pre-surveys, the problem that often occurs is errors when making transactions. In this study, usability evaluation was carried out using the Retrospective Think Aloud (RTA) and Post-Study System Usability Quesionaire (PSSUQ) methods. The results of the usability measurement show that users experience little difficulty when running the transfer and purchase menus. This is reinforced by the results contained in the norms of the PSSUQ method where the results of the SyeUse variable value of 2.70 and InfoQual 2.95 are below the average which indicates that the usability of the system and the quality of information on BRKS Mobile are still lacking. For the InterQual value of 3.09, it is above average and overall the BRKS application is at 2.89 above average, which means that the application can be accepted by its users.
Co-Authors ', Hamsyah A, Biyandra Timothee Abdurrahmansyah Abdurrahmansyah, Abdurrahmansyah Abidina, Keisya Adan Achmad Chumaidi, Achmad Ade Suryanda Adrian Permana Zen Agmi, Nadia Agus Riyanto, Indra Ahmad Cahyadi **) Ahmad Suriansyah Ahsyar, Tengku Khairil Alfarizky, M Ferdy Agus Alfitri, Mira Ali Asroni Ali Rakhman Hakim Amalina, Azka Amanda, Amelia Andrisyah, Fauzi Anisa Anisa Anuari, Nong Aprillia Dwi Ardianti Ardiansyah, Felix Arifitama, Budi Arsy, Selma Kendida Atthoriq, Muhamad Naufal Aulyanti, Davina Dewi Azizi, Adni Salsabil Azka, Muhammad Azwar, Erizaldy Bayu Kurniawan Brawijaya, Kriska Budi Setiawan Budoyo, Joto Candra, Mellyana Cecillia, Febby Chandra Pratama, Ragil Cinantya, Celia Darmawahyuni, Annisa Desthabu, Meurina Dewi Puspaningtyas Dewi, Ernia Novika Dewi, Lativa Andam Dianugra, Muhammad Keizhar Dinda Lestarini Dwi Laksono, Angga Dwi Putra, Rakhmat Dwisari Dillasamola Eka Yuniarto Eko Haryono Endang Komariah, Endang Erz Saragih, Raymond Fadhilla, Naylatul Fadil, Muhammad Syukri Fadillah Putra Fajri, Aulia Romadhona Jihad Al Fariski, Aulia Isnaeni Fatchurohman, Hendy Fathonah, Naila Izzatun Fauziah, Ismahani Febriyanto, Hendra Ferdiansyah, Muhammad Reynaldi Fil'Awalin, Hanif Firdaus Firdaus Ghaly, Raihan Athallah Habibi, Alif Farhan Hafsah, Nur Handar Subhandi Bakhtiar Hanisa, Najma Syakina Hardiana Widyastuti Harisa, Ardiawan Bagus Hariyadi, Nursyifa Nada Harun Al Azies Hasibuan, Ahmad Daniel Hayatul Cholsy Helda Orbani Rosa Hendriansah Hendry . Hermansyah Hilary Reinhart Husaini Husda IDA RAHMAWATI Ika Wiani Ilma, Novita Indra Refipal Sembiring Inggih Permana Irawan, Diki Surya Irlianda, Rahma Irma Rahmawati Ismail, Mahesa Isnaini, Lisa Fajri Jazman, Muhammad Jun Justinar K, M. Rizal Kurniawan, Anggy Tyas Labib, M. Ainul Latifui, Aldila Charine Nuraini Ledy Diana Listya Endang Artiani, Listya Endang Liya Umaroh, Liya Lusi Ariyani M Widyastuti Madani, Hanif Al Malahayatie Mallorca, Muhammad Nur Alfat Margaretha Widyastuti Marsuni, Yusriadi Marwan Marwan, Arif Miftahul Jannah Moch. Solikin, Moch. Mufadhdhal, Muhammad Asad Muhadzid, Fayyadh Atsil Muhammad Asyroful Mujib Muhammad Aziz Muhammad Fachrurrozi Bafadal Muhammad fauzan Muhammad Yazid MUKAROMAH MUKAROMAH Muljono Muljono Mursanto, Mursanto Muslem, Asnawi Mylova, Rezha Willy Putra Nabila, Hilma Agisna Naibaho, Elsa Rholas Nasichah Norma Eralita Noverial Nuraini , Azzahra Nurhayati Nurhayati Nurjaman, Satya Pirman Nursantri Yanti Oktafani, Reni oktavia, sanni Oktaviani, Dilla Onggo, Nico Pamungkas, Bintang Putra Dwi Prafinda Ababil, Putri Prasetyo Adi, Muhammad Wahyu Pratama, Martha Putri Pratiwi, Eghinna Elsa Prayoga, Yegi Pulung Nurtantio Andono Purba, Angel Putri Rachmadani, Nisa Putri, Biomechy Oktomalio Putri, Popy Dwi Rafly, Muhammad Naufal Rahayu, Linda Zulkifa Rahma, Anne Rahmah, Mulia Rajudin, Rajudin Ramadhan, Fajri Ramadhani, Nasywa Anjani Rani Maharani Respati, Adnasohn Aqilla RISAL, SYAHLAN Riswandi, Muh Syahlan Riyanto, Indra Agus Rizhal Hendi Ristanto Rodika Ryazi, Inggit Dzulka Safitriani, Indah Sagita, Adilah Nisrina Ayu Samangi, Arfina Sari Ayu Wulandari Sarifah Putri Raflesia, Sarifah Putri Sariman, Syahrul Satyawira, Ryan Sa’adah, Muna Sembiring, Theresia Aprilia Br Sepe, Muslimin Silalahi, Purnama Ramadani Silvester Dian Handy Permana, Silvester Dian Handy Siregar, Karina Josephine Siti Anisah Siti Nurmaini Situmeang, Zefanya Angelica Sri Sentanu, I Gede Eko Putra Sudarmin Suhendra Sulfanita, Andi Sumartono Sutomo, Rudi Suwandi, Agus Thoriq, Muhammad Tjahyo Nugroho Adji Tomy Perdana Trihandono, Donny Tuparjono . Ubaidillah, Hasan Ulhaq, M. Jia Wahyu Ristiawan, Angga Welgaputri, Feby Wianda, Muhammad Nabiel Augis Wibawa, Yohanes Eka Winda, Nadia Oktavia Wulandari, Wita Wulansari, Rindi Yunita, Marsya Zahra, Lintang Aulia Zakky Zamrudi Zayn, Afta Ramadhan Zulfikar Jayakusuma