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All Journal Jurnal Teknologi Rekayasa Mesin Indonesian Journal of Chemical Science Journal of Multidisciplinary Applied Natural Science Jurnal Abdi Masyarakat Indonesia Indonesian Mining and Energy Journal JURNAL ABDI MASYARAKAT INDONESIA (JAMIN)
wiwik dahani, wiwik
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Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Public Health Other

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Pelatihan Pemanfaatan Artificial Intelligence bagi Tenaga Pendidik Pondok Pesantren Madinatunnajah, Kota Tangerang Selatan, Banten Prima, Andry; Aryanto, Reza; Pramadika, Havidh; Kashah, Muhammad Refli; Satiyawira, Bayu; Samura, Lisa; Maulani, Mustamina; Rosyidan, Cahaya; Djumantara, Maman; Wibowo, Djunaedi Agus; Nugrahanti, Asri; Dahani, Wiwik; Yanti, Widia
Jurnal Abdi Masyarakat Indonesia Vol 5 No 5 (2025): JAMSI - September 2025
Publisher : CV Firmos

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54082/jamsi.2083

Abstract

Keterbatasan penguasaan teknologi digital, khususnya Artificial Intelligence (AI), masih menjadi tantangan bagi tenaga pengajar di Pondok Pesantren Madinatunnajah. Padahal, penguasaan teknologi tersebut semakin relevan dalam menunjang efektivitas pembelajaran di era transformasi digital. Kegiatan pengabdian kepada masyarakat ini bertujuan untuk meningkatkan kapasitas tenaga pengajar pondok pesantren dalam memahami dan memanfaatkan AI secara praktis dalam kegiatan belajar mengajar. Kegiatan ini dilaksanakan melalui pelatihan berbasis pemaparan materi, diskusi interaktif, dan praktik langsung, yang kemudian dievaluasi menggunakan pendekatan deskriptif kuantitatif melalui survei terhadap 19 peserta.Hasil evaluasi menunjukkan bahwa pelatihan memberikan dampak positif yang nyata, tercermin dari peningkatan rata-rata kemampuan peserta dari skor 2,11 menjadi 2,89. Visualisasi boxplot menunjukkan peningkatan yang merata dan konsisten, sementara analisis heatmap dan radar chart memperlihatkan penilaian tinggi terhadap efektivitas metode pengajaran dan relevansi materi pelatihan. Dampak kegiatan ini dirasakan langsung oleh mitra, yakni tenaga pengajar di Madinatunnajah, yang kini memiliki pengetahuan dan keterampilan dasar dalam mengintegrasikan AI ke dalam proses pembelajaran. Selain itu, kegiatan ini mendorong terbangunnya budaya literasi digital di lingkungan pesantren serta menjadi model awal integrasi teknologi dalam pendidikan berbasis keagamaan. Program ini diharapkan menjadi langkah awal dalam menciptakan guru-guru pesantren yang adaptif terhadap perkembangan teknologi pendidikan.
TRAINING FOR HOUSEHOLD WASTE INTO EFFECTIVE MATERIALS FOR COMMUNITIES RT06/16, TOMANG, JAKARTA BARAT Fadliah, Fadliah; Dahani, Wiwik; Pratiwi, Reno; Subandrio; Aryanto, Reza; Kurniawati, Riskaviana
Jurnal Abdi Masyarakat Indonesia (JAMIN) Vol 5 No 2 (2023): JURNAL ABDI MASYARAKAT INDONESIA (JAMIN)
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jamin.v5i2.17418

Abstract

The production process with the green synthesis method is a method that is being developed in the production process for daily household needs. One of the green synthesis methods that has been developed is using waste products such as waste cooking oil (WCO) as a raw material in the soap production process. In the process of making soap, saponification reactions occur between triglycerides and fats and oils that occur in alkaline solutions. The materials used are a mixture of WCO, distilled water, and sodium hydroxide. The WCO used in this training is purified WCO with the addition of natural zeolite. Acid-activated natural zeolite, to increase its catalytic ability, is used as an adsorbent to adsorb impurities contained in WCO. The training consists of three stages: providing material about the dangers and negative effects that can be caused by using used cooking oil in everyday life for both the environment and health, the WCO cleaning process, and the utilization of purified WCO into an efficient product in the form of laundry soap. The results of the activities carried out can be seen from the discussion activities carried out after the activity took place with the partner community, which show an increase in community knowledge about how to treat waste and the potential for improving the economic situation of the community through knowledge of the soap-making process.
PYROMETALLURGICAL PROCESS FOR ZINC ANALYSIS IN SPHALERITE APPLYING XRD AND XRF Dahani, Wiwik; Kurniawati, Riskaviana; Sundari, Rita; Marwanza, Irfan; Rachman, Faisal
Jurnal Rekayasa Mesin Vol. 15 No. 1 (2024)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v15i1.1525

Abstract

This paper has analyzed dominant zinc element in sphalerite naturally found together with galena in mineral ore. Since pyrometallurgical route related to roasting process is very common to mineral dressing, therefore, this investigation has studied the effect of varied roasting time (30 min, 60 min, and 90 min) and temperature (500oC, 600oC, and 700oC) on zinc mineral examination using XRD (X-Ray Diffraction) and zinc element using XRF (X-Ray Fluorescence) analyses. Previous studies usually applied cheaper AAS (Atomic Absorption Spectrometer) for zinc analysis in aqueous solution, however, sphalerite is a solid matrix and therefore, this study has applied XRF to analyze zinc. Pyrometallurgical process of zinc mineral in sphalerite is related to mineral transformation in the form of ZnSO4, ZnS, and ZnO that cannot be detected by XRF. Therefore, this study has used XRD that can observe mineral transformation.   The XRD pattern shows four intense peaks at 2θ (28o, 47o, 56o, and 76o) justified sphalerite (ZnS) sample with little amount of pyrite (FeS2) and galena (PbS) as impurities. The XRF analysis shows from 30 min to 90 min, the Zn content has increased remarkably at 700oC and Zn content looked stagnant at 500oC, while Zn content increased dramatically from 60 min to 90 min at 600oC. During roasting process at high temperature, ZnS mineral converted to ZnO and expelled SO2 gas due to oxidation reaction causing weight reduction. The study is valuable for mineral processing in searching for optimization.
EFFECT OF ACID CONCENTRATION AND ROTATION RATE ON PB LEACHING FROM GALENA ORES Sundari, Rita; Dahani, Wiwik; Marwanza , Irfan; Subandrio, Subandrio; Herdiyanto, Rizky B.
Jurnal Rekayasa Mesin Vol. 16 No. 1 (2025)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v16i1.1583

Abstract

This research is related to lead (Pb) leaching from galena ores using acid leaching method. The galena ores have been treated through pyrometallurgy method by roasting at 600oC 1h to yield galena concentrate. The Pb concentration has been determined by AAS (Atomic Absorption Spectrophotometry) using acid leaching method. This study has observed the effect of leaching acid concentration (acetic and sulfuric acids) and rotation rate on Pb leaching at 50oC 45 min. This study shows that varied acetic acid concentrations gave more effect on Pb extraction. Optimum condition achieved for 2.0 M acetic acid for all given rotation speeds (200 rpm, 300 rpm, and 400 rpm). For sulfuric acid leaching, optimum condition achieved at 1.0 M H2SO4 at 400 rpm. From the results, it is apparent that varied rotation speed (200 rpm, 300 rpm, 400 rpm) gave lesser effect on Pb leaching rather than varied acid concentration effect (0.5 M, 0.75 M, 1.0 M, 2.0 M, and 3.0 M).  In addition, the XRF (X-Ray Fluorescence) analysis on galena ores shows the existence of lanthanum, ytterbium, and europium (rare earth elements) in significant amount since rare earth elements displays important role in modern industry for nuclear battery, dental apparatus, microchips, hybrid vehicles, catalyst for cracking, audio device, and ceramic agent. Statistical and numerical analysis are briefly included in this study to determine the dominant factor and process optimization.
OPTIMASI UKURAN PARTIKEL DAN KEMIRINGAN MEJA PADA PROSES KONSENTRASI BESI MENGGUNAKAN SHAKING TABLE Saputra, Lalu Qobil Rahman; Subandrio; Palit, Christin; Kurniawati, Riskaviana; Dahani, Wiwik
Indonesian Mining and Energy Journal Vol. 8 No. 2 (2025): November
Publisher : Program Studi Teknik Pertambangan Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/imej.v8i2.20793

Abstract

Penelitian ini bertujuan untuk mengkaji pengaruh variasi ukuran partikel dan sudut kemiringan meja goyang terhadap peningkatan kadar dan recovery besi (Fe) dari pasir besi menggunakan metode meja goyang. Sampel dipisahkan menjadi tiga ukuran partikel (+100 mesh, +140 mesh, dan -140 mesh) dan diuji pada tiga sudut kemiringan meja (2,8°, 3°, dan 3,3°). Hasil menunjukkan bahwa kombinasi ukuran -140 mesh dan kemiringan 2,8° menghasilkan recovery tertinggi sebesar 177,11%. Analisis menggunakan metode Taguchi dengan pendekatan Larger is Better menunjukkan bahwa ukuran partikel merupakan faktor paling dominan dalam menentukan efisiensi pemisahan. Temuan ini menegaskan pentingnya optimasi parameter operasi shaking table dalam meningkatkan perolehan konsentrat Fe dari pasir besi.
PENGARUH KECEPATAN DAN ARAH ANGIN TERHADAP SWABAKAR DI PT BERAU JAYA ENERGY Akbar, Taharah Incia Mulia; Suliestyah; Hartami, Pantjanita Novi; Fadliah; Dahani, Wiwik
Indonesian Mining and Energy Journal Vol. 8 No. 2 (2025): November
Publisher : Program Studi Teknik Pertambangan Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/imej.v8i2.20801

Abstract

Proses penumpukan batubara dalam waktu yang lama berpotensi menyebabkan swabakar (spontaneous combustion), yaitu kondisi di mana batubara terbakar dengan sendirinya akibat proses oksidasi internal yang memicu peningkatan suhu. Risiko ini meningkat jika suplai oksigen melimpah dan panas tidak dapat dilepaskan secara optimal, yang kemudian menyebabkan pelarian termal hingga terjadi kebakaran. Penelitian ini menggunakan pendekatan kuantitatif dengan observasi langsung serta pengumpulan data primer dan sekunder. Pengukuran kecepatan angin dilakukan pukul 11.00 WITA selama lima hari dari empat arah berbeda dan diketahui angin dominan berasal dari arah utara ke selatan. Suhu batubara terus meningkat dari hari ke hari, khususnya pada titik 4 yang menunjukkan suhu tertinggi secara konsisten mencapai 50°C di hari ke-5, meskipun suhu cuaca tidak menunjukkan konsisten naik. Hal ini menunjukkan adanya reaksi oksidasi internal. Kandungan total moisture sebesar 65,74% dan volatile matter 29,62% pada batubara di PT Berau Jaya Energy memperparah kondisi. Kombinasi antara kadar air tinggi, kandungan volatile yang besar, serta paparan angin mempercepat oksidasi dan meningkatkan risiko swabakar, sehingga dibutuhkan upaya mitigasi yang tepat.
Co-Authors Akbar, Taharah Incia Mulia Andry Prima Aryandi, Firman Aryanto, Reza Asri Nugrahanti, Asri Azizi, Masagus Ahmad Bacas, Aurelly P M Bani Nugroho, Bani Bayu Satiyawira Cahaya Rosyidan Darren, Franko Sajow Djunaedi Agus Wibowo Fachry Abda El Rahman Fadliah Fadliah, Fadliah Faisal Rachman Gumay, Rhazes Eesha Hartami, Pantjanita Novi Hassani, Kenandikha Ilham Havidh Pramadika Herdiyanto, Rizky B. Herdyanti, Mixsindo Korra Irfan Marwanza Kashah, Muhammad Refli Kurniawati, Riskaviana Lie, Nobel Alief Madani Saputra, Naufal Maman Djumantara, Maman Marwanza , Irfan Maulani, Mustamina Nas, Chairul Palit, Christin Patian, Syamidi Purwiyono, Taat Tri Putra, Danu Sahetapy, Silvia Immanuela Samura, Lisa Saputra, Lalu Qobil Rahman Septiano, Michael Setiawan, Anthony Indra Sri Sunarsih Subandrio Subandrio, Subandrio Subandrio, Subandrio Suliestyah Sundari, Rita Widia Yanti, Widia