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Journal : Infotekmesin

EKSPLORASI BUKTI DIGITAL PADA SMART ROUTER MENGGUNAKAN METODE LIVE FORENSICS Supriyono, Abdul Rohman; Sugiantoro, Bambang; Prayudi, Yudi
Infotekmesin Vol 10, No 2 (2019): Infotekmesin: Juli 2019
Publisher : Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (554.582 KB) | DOI: 10.35970/infotekmesin.v10i2.48

Abstract

Network devices as media file sharing and can be used as file servers have begun to appear, just as smart router devices can be used as file servers by adding USB Thumb drive as storage media. With the diversity of router devices, it becomes a challenge in digital forensic science when a case occurs by utilizing a smart router device related to file-sharing services. Then it is necessary to study the right method in investigating smart router devices. This paper discusses the use of the live forensics acquisition method in investigating smart router devices, against system log files related to file-sharing activities. In identifying the process of searching, recognizing, and documenting potential things as digital evidence of processing devices and digital media storage. The acquisition process uses two methods, namely the live acquisition method on the router device and physical acquisition on the device that is used as storage media on the smart router.
Optimasi Parameter Gravitasi Shot Peening Terhadap Kekasaran, Kekerasan dan Struktur Mikro ST 45 dengan Metode Taguchi Nur Wibowo, Trio; Hartono, Hartono; Sugiantoro, Bambang
Infotekmesin Vol 12 No 1 (2021): Infotekmesin: Januari 2021
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v12i1.519

Abstract

Shot peening is a surface treatment method at low temperature by shooting steel balls that are continuously adjusted for pressure and speed until plastic deformation is produced. The optimal parameter of the shot peening process was tested with the taguchi distribution. The factors and levels used are processing time, shooting distance and air pressure used in the shot peening process. Observations were made by looking at changes in surface roughness, thickness reduction, hardness levels, wear and changes in the microstructure of ST 45 steel material. The greatest hardness of 240.39 HVN was obtained at 10 minutes, a distance of 10 cm and a pressure of 9 kg / cm². The results of the surface wear test with the smallest value of 0.00039 mm³ / kg.m were obtained at 5 minutes, a distance of 10 cm and a pressure of 7 kg / cm². The results of the microstructure test showed that the change in the grain size of the microstructure of the material became flatter and smaller, the gravity shot peening method improved the mechanical properties of the ST 45 material.
Upgrading Bahan Bakar Jumputan Padat (BBJP) Sebagai Co firing Sistem Tenaga Uap Melalui Thermal Drying dan Fermentasi Mastur, Mastur; Sugiantoro, Bambang; Prabowo, Nugrah Rekto; Supiyana, Nana; Sutisna, Utis
Infotekmesin Vol 15 No 1 (2024): Infotekmesin: Januari, 2024
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v15i1.2074

Abstract

The waste sorting process produces organic and inorganic waste. It can be converted into Solid Recovered Fuel with the addition of a maximum of 20% plastic, which can be used for co-firing coal combustion in steam power systems. High humidity levels and the condition of organic waste with its various constituent components require drying and other treatments to increase the calorie content. Types of organic waste treatment, methods of drying, and decomposition of organic waste went through a fermentation process. The research aims to identify the effect of fermentation, addition of biomass, and plastic shreds of BBJP products on density, ash content, chlorine, and calorific value. Dimensions of organic waste powder at a level of 50 mesh and plastic shreds of 5-10 mesh are aimed at increasing the pellet/SRF bond. Mechanical testing data in the form of compression testing resulted in a level of resistance that exceeded pellet strength requirements and increased by 67%. Chlorine and sulfur levels are approaching the limit, but ash levels are still high. The calorific value of pellets in the fermented organic waste specimen treatment produces a higher calorific value compared to other treatments. Research on converting waste into co-firing fuel in solid form with the criteria for calorific value and physical properties that comply with the technical requirements for co-firing steam-powered systems can still be optimized to produce fuel with a higher calorie content. Reducing chlorine, sulfur, and ash levels is done for a low-carbon and environmentally friendly combustion process.
Co-Authors Abdul Haris Muhammad Abdullah, Mohd. Fikri Azli bin Afrianto, Nurdi Agung Fatwanto Ahmad Luthfie Akbar, Bintang Faisal Akbar, Muhammad Tulus Akbar, Reonaldo Al Jum'ah, Muhammad Na'im Alfani, Muhammad Nur Alfarizi, Naufal Faiz Alifah Amalia Amalia, Alifah Amanulloh, Rivkih Amin Pujiati Amin Retnoningsih Anbari, Muhamad Zaki Arromdoni, Bad’ul Hilmi Astari, M Rizky Asyhab, Naufal bahary, muhammad syaiful Bahry, Muhammad Syaeful Budi Permana Putra Budiman, Kholiq Dewantara, Rizki Dori Gusti Alex Candra Efdika, Muhamad Fadil Efendi, Muhamad Masjun Elvanisa Ayu Muhsina, Elvanisa Ayu Endra Yuliawan Fahmi Romisa Gatra, Rahmadhan Gatra, Ramadhan Gunawan Gunawan Habibah, Berlian Ummu Habibullah, Ricky Hafizuddin, Faiz Akhmad Hakim, Fani Rakhman Hanif Hanif Hartono Hartono Helmi Rachman Hikmatyar, Firmansyah Gustav Idir Fitriyanto Idir Ika Arfiani Imtikhan Azmi, Himawan Istianto, Yudi Izdiharsant, Almaas Jazi Eko Istiyanto Karmesti, Danissa Wirna Kesumahadi, Lisdianto Dwi Khanif Setiyawan Khusna, Tachiyya Nailal Mahardhika, Yuha Bani Mahbub Puba Fawzan Mahbub Puba Fawzan, Mahbub Puba Mahmuda, Muhimmatul Mardlian, M. Sa’id Abdurrohman Kunta Maria Ulfa Siregar Maria Ulfah Siregar Maria Ulfah Siregar Mastur Mastur Meiditra, Irzon Merisa Kurniasari Fadilla Muhamad Fadli Muhamad Soleh Muhamad Zaki Anbari Muhammad Hambali, Muhammad Muhammad Reza Velayani Muhammad Taufiq Nuruzzaman Mujahidah, Latifatul Mulyana, Riyan Nana Kariada Trimartuti Nana Supriyana Ngisomudin, Ngisomudin Nora Lizarti Nugrah Rekto Prabowo Nur Wibowo, Trio Nuruzzaman, Muhammad Taufiq Panggih Gumelaring Praja Pomalingo, Suwito Praharto, YB. Prasdika, Prasdika Pratiwi, Millati Putry Wahyu Setyaningsih Qorry Aina Fitroh Rachman, Helmi Retantyo Wardoyo Rini Audia Rinny Asasunnaja Riwanto, Yudha Romisa, Fahmi Rusnaldhy, Rusnaldhy Sakuri, Sakuri Sakuri, Sakuri Shofwatul 'Uyun Shofwatul ‘Uyun Son’Aniy, Irham Sophan Sofian Sri Hartati Subki, Ahmad Sucinta, Hanny Handayani Sumarsono , Sumarsono Sunyoto Sunyoto Supiyana, Nana Supriyono, Abdul Rohman Susilo Adi Widyanto Sutarno Sutarno Tasya Kumala Dewi, Bella Tri Widodo Tris Sugiarto Utis Sutisna Warso Warso, Warso Wicaksono, Nur Kukuh widowati widowati Wildan Nadiyal Ahsan Winasis, Bima Putra Wishnu, Asep Yudi prayudi Yuha Bani Mahardhika