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All Journal Jurnal Teknik ITS Sinergi Jurnal IPTEK Indonesian Mining Journal Majalah Farmaseutik Martabe : Jurnal Pengabdian Kepada Masyarakat JPP IPTEK (Jurnal Pengabdian dan Penerapan IPTEK) Prosiding Seminar Nasional Sains dan Teknologi Terapan Indonesian Physical Review Jurnal Kedaymas MATHunesa: Jurnal Ilmiah Matematika Journal of Mechanical Engineering, Science, and Innovation Sewagati TOFEDU: The Future of Education Journal Indonesian Mining Journal
Diah Susanti
Institut Teknologi Sepuluh Nopember Surabaya
Agriculture, Biological Sciences & Forestry Arts Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Physics Public Health Social Sciences Other

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DAMPAK PENINGKATAN PANAS DAN JENIS REDUKTAN TERHADAP SAPROLIT: STUDI PENDAHULUAN Bahfie, Fathan; Manaf, Azwar; Astuti, Widi; Nurjaman, Fajar; Prasetyo, Erik; Susanti, Diah; Sipahutar, Wahyu Solafide
Indonesian Mining Journal Vol 27 No 1 (2024): Indonesian Mining Journal, April 2024
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/imj.Vol27.No1.2024.1533

Abstract

Indonesia significantly contributes to the global electric vehicle battery market due to its substantial medium- and low-grade nickel reserves. This study utilized saprolitic nickel ore from Halmahera, Maluku, Indonesia. However, the research on saprolite needs some improvements due to its complex mineral composition, which affected on the roasting process significantly. Therefore, a thorough understanding of the properties of laterite ores is critically important, particularly concerning laterite pre-reduction processes. The ore was finely sieved to a particle size of less than 100 mesh and then heated at temperatures of 250, 900, and 1150°C with the variation of reductant (anthracite and palm kernel charcoal). Extensive mineralogical analysis was conducted using X-ray diffraction (XRD), X-ray fluorescence (XRF), and scanning electron microscopy with energy-dispersive spectroscopy (SEM-EDS). The analysis of saprolite showed that it contains about 1.82% nickel, 30.47% iron, 10-20% magnesium, 4.86% aluminum, and 8.1% silicon by weight. Its mineral composition is mainly 53.1% goethite, 38.3% lizardite, and 8.7% quartz. The study found that goethite in saprolite was transformed into hematite around 250°C. At 900°C, the forsterite was crystallized, and at 1150°C, the ferronickel was formed. The transformation of lizardite is important as it affected on nickel diffusion within the iron matrix, which impacted on the material's properties. A thermal upgrading method with reductants like anthracite and palm kernel charcoal was used at lower temperatures to enhance the properties of saprolite. These findings provided valuable insights into saprolite's mineralogical composition and behavior, potentially offering improvements in various industrial processes and applications.
DAMPAK PENINGKATAN PANAS DAN JENIS REDUKTAN TERHADAP SAPROLIT: STUDI PENDAHULUAN Bahfie, Fathan; Manaf, Azwar; Astuti, Widi; Nurjaman, Fajar; Prasetyo, Erik; Susanti, Diah; Sipahutar, Wahyu Solafide
Indonesian Mining Journal Vol 27 No 1 (2024): Indonesian Mining Journal, April 2024
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/imj.Vol27.No1.2024.1533

Abstract

Indonesia significantly contributes to the global electric vehicle battery market due to its substantial medium- and low-grade nickel reserves. This study utilized saprolitic nickel ore from Halmahera, Maluku, Indonesia. However, the research on saprolite needs some improvements due to its complex mineral composition, which affected on the roasting process significantly. Therefore, a thorough understanding of the properties of laterite ores is critically important, particularly concerning laterite pre-reduction processes. The ore was finely sieved to a particle size of less than 100 mesh and then heated at temperatures of 250, 900, and 1150°C with the variation of reductant (anthracite and palm kernel charcoal). Extensive mineralogical analysis was conducted using X-ray diffraction (XRD), X-ray fluorescence (XRF), and scanning electron microscopy with energy-dispersive spectroscopy (SEM-EDS). The analysis of saprolite showed that it contains about 1.82% nickel, 30.47% iron, 10-20% magnesium, 4.86% aluminum, and 8.1% silicon by weight. Its mineral composition is mainly 53.1% goethite, 38.3% lizardite, and 8.7% quartz. The study found that goethite in saprolite was transformed into hematite around 250°C. At 900°C, the forsterite was crystallized, and at 1150°C, the ferronickel was formed. The transformation of lizardite is important as it affected on nickel diffusion within the iron matrix, which impacted on the material's properties. A thermal upgrading method with reductants like anthracite and palm kernel charcoal was used at lower temperatures to enhance the properties of saprolite. These findings provided valuable insights into saprolite's mineralogical composition and behavior, potentially offering improvements in various industrial processes and applications.
PENGARUH REKAYASA PERMUKAAN TERHADAP NILAI KEKERASAN PADUAN MAGNESIUM AZ31 Mu'adz Abdullah Faqih; Purniawan, Agung; Rasyida, Amaliya; Susanti, Diah
MATHunesa: Jurnal Ilmiah Matematika Vol. 13 No. 1 (2025)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/mathunesa.v13n1.p190-196

Abstract

Paduan magnesium AZ31 menawarkan prospek yang menjanjikan sebagai material implan biodegradable karena memiliki sifat mekanik yang menyerupai tulang manusia dan biokompatibilitasnya yang unggul. Namun, kelemahan utama material ini adalah laju korosi yang tinggi dapat mengakibatkan kegagalan material sebelum regenerasi jaringan selesai dan kekerasan yang rendah sebagai material implan tulang. Penelitian ini bertujuan untuk mengatasi permasalahan tersebut dengan melakukan rekayasa permukaan melalui metode Plasma Electrolytic Oxidation (PEO) dan Hydrothermal Treatment (HT). Studi ini melibatkan tiga spesimen: AZ31 tanpa perlakuan, AZ31 dengan lapisan PEO, dan AZ31 dengan lapisan PEO yang diberi perlakuan HT. Analisis difraksi sinar-X (XRD) menunjukkan pembentukan senyawa MgO, Mg(OH)₂, Mg₂SiO₄, dan hidroksiapatit pada permukaan lapisan. Intensitas puncak hidroksiapatit tertinggi ditemukan pada spesimen yang menjalani perlakuan HT, menandakan peningkatan kandungan hidroksiapatit yang dapat meningkatkan bioaktif implan. Uji kekerasan Vickers menunjukkan bahwa spesimen dengan lapisan PEO memiliki nilai kekerasan tertinggi sebesar 76,69 HV, meningkat 35% dibandingkan dengan spesimen tanpa perlakuan (56,60 HV). Setelah perlakuan HT, kekerasan menurun menjadi 68,94 HV, yang disebabkan oleh relaksasi tegangan internal saat proses hidrotermal. Hasil penelitian ini menunjukkan bahwa kombinasi metode PEO dan HT tidak hanya meningkatkan kekerasan permukaan, tetapi juga menghasilkan lapisan bioaktif dengan potensi biointegrasi yang lebih baik. Kombinasi ini menjadikan paduan AZ31 sebagai kandidat unggul untuk aplikasi implan biomedis. Penelitian lebih lanjut disarankan untuk mengoptimalkan parameter proses dan mengevaluasi kinerja biologis secara in-vitro dan in-vivo guna mendukung pengembangan aplikasi klinis.
Pelatihan Pemrograman Komputer Berbasis Python bagi Siswa SMAIT Al Uswah Surabaya Rasyida, Amaliya; Ardhyananta, Hosta; Hidayat, Mas Irfan Purbawanto; Wicaksono, Sigit Tri; Susanti, Diah; Nurdiansah, Haniffudin; Andini, Evi Fuji
Sewagati Vol 9 No 3 (2025)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j26139960.v9i3.2599

Abstract

SMAIT Al Uswah adalah sekolah menengah atas yang berfokus pada pembentukan siswa muslim yang berkarakter dan berprestasi. Siswa dididik dengan mengintegrasikan nilai-nilai Islam dengan ilmu pengetahuan dan teknologi. Sekolah ini menyediakan berbagai kegiatan ekstrakurikuler menarik, seperti kaligrafi, jurnalistik, futsal, basket, dan lainnya. Namun, fasilitas untuk pengembangan keterampilan pemrograman komputer belum tersedia karena keterbatasan tenaga pengajar. Padahal, pelajaran pemrograman komputer sangat relevan mengingat perkembangan teknologi berbasis digital. Selain itu, materi ini dapat meningkatkan kemampuan berpikir logis, kreativitas, serta pemahaman teknologi secara cerdas dan bertanggung jawab. Oleh karena itu, tim KKN ABMAS menyelenggarakan pelatihan pemrograman komputer berbasis Python untuk siswa SMAIT Al Uswah. Tim ini juga telah menyusun buku modul pembelajaran Python dan melaksanakan sesi pengajaran selama lima minggu. Pemahaman siswa terhadap materi diukur melalui pretest dan post-test. Kegiatan ini dianggap berhasil sebabberhasil meningkatkan pemahaman siswa sebesar 88.89% berdasarkan dari hasil nilai pretest dan post test.
Pengembangan Zona KHAS Kantin Departemen Teknik Material Dan Metalurgi dan Kantin Teknik Mesin ITS Fajarin, Rindang; Nurdiansyah, Haniffudin; Purwaningsih, Hariyati; Susanti, Diah; Pratiwi, Vania Mitha; Baqiya, Malik Anjelh; Widyastuti, Widyastuti; Wicaksono, Sigit Tri; Kurniawan, Budi Agung; Pramata, Azzah Dyah; Azizah, Salma Nur; Farahdibah, Athirah; Widyani, Devi; Harahap, Rizki Anwar; Sugiharto, Rochman; Putri, Elisa Beliana; Adyansyah, Farhan; Aini, Siti Nur; Pratama, Tata Bayu; Afif, Moh. Azmi; Rahma, Elfrida Venia
Sewagati Vol 9 No 3 (2025)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j26139960.v9i3.2601

Abstract

Proses pendampingan sertifikasi halal self declare pada produk UMKM makanan dan minuman di Kantin departemen Teknik Mesin serta Teknik Material dan Metalurgi ini dilaksanakan dengan tujuan untuk memperluas pemahaman terkait pentingya sertifikasi halal dalam peningkatan mutu produk UMKM, menambah nilai jual produk, serta meningkatkan minat dan kenyamanan konsumen produk UMKM di Kantin departemen Teknik Mesin serta Teknik Material dan Metalurgi. Metode pelaksanaan kegiatan pengabdian masyarakat ini berupa sosialisasi, knjungan, serta pendampingan terkait pengajuan sertifikaasi halal melalui SiHalal dengan program self declare. Adapun hasil dari keberjalanan program ini yakni UMKM mampu memahami pentingnya sertifikasi halal; UMKM memahami tahapan pengajuan sertifikasi halal self declare; Serta terbitnya sertifikat halal pelaku UMKM di Kantin departemen Teknik Mesin dan Teknik Material Metalurgi. Dengan demikian, diharapkan hal tersebut mampu mendukung keberjalanan Insitut Teknologi Sepuluh Nopember dalam memnuhi zona KHAS (Kuliner Halal Aman dan Sehat). Disisi lain, minat beli konsumen dan kepercayaan konsumen diharapkan dapat meningkat dengan adanya label halal tersebut. Diharapkan juga dapat meningkatkan nilai penjualan produk dan kesejahteraan UMKM Kantin departemen Teknik Mesin dan Teknik Material Metalurgi.
Pembuatan Tangga Bukit di Bukit Podo untuk Pengembangan Kawasan Wisata Ponpes Al Khoiriyah, Desa Wates, Kecamatan Sumbergempol, Tulungagung Susanti, Diah; Kamilah, Imada Millatul; Kusuma, George Endri; Nurdiansah, Haniffudin; Pramata, Azzah Dyah; Fajarin, Rindang; Moballa, Burniadi; Rakhmawati, Yeny Widya; Purwaningsih, Hariyati
Sewagati Vol 9 No 2 (2025)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j26139960.v9i2.2636

Abstract

Kerjasama antara ITS dengan Ponpes Al Khoiriyah Desa Wates, Kecamatan Sumbergempol, Kabupaten Tulungagung telah dimulai sejak tahun 2021 melalui skema abmas dan KKN Mahasiswa. Tahun 2023 lalu telah dibuat lampu dan sel surya di atas bukit Podo di kawasan Ponpes Al Khoiriyah oleh tim KKN. Namun, dari kaki bukit hingga puncak bukit belum terdapat tangga permanen yang memudahkan orang mendaki, dan hal inilah yang menjadi kesulitan tim abmas kami tahun lalu. Tangga ini menjadi salah satu hal penting untuk pengembangan kawasan wisata Glamping Podo Rukun (GPR) ponpes Al Khoiriyah agar pengunjung dapat naik ke atas bukit, melihat pemandangan dari atas bukit dan bagi pengelola juga memudahkan untuk melakukan pemeliharaan terhadap fasilitas di atas bukit. Dengan demikian, tujuan dari Abmas tematik dana departemen tahun 2024 ini adalah membuat tangga permanen di Bukit Podo. Kegiatan ini penting dalam rangka mengembangkan kawasan desa wisata untuk meningkatkan potensi daerah dan pertumbuhan ekonomi masyarakat yang mendukung SDG Pekerjaan Layak dan Pertumbuhan Ekonomi. Luaran dari kegiatan ini adalah publikasi di media massa, di jurnal abmas, dan video yang dilengkapi HAKI. Pengabdian masyarakat telah dilaksanakan pada tanggal 8-18 Juli 2024, dimulai dengan survey, pengadaan alat dan bahan, serta pekerjaan konstruksi tangga di bukit Podo secara intensif dalam jangka waktu sekitar 10 hari. Pada akhir kegiatan telah dilakukan kegiatan serah terima hasil abmas KKN kepada pihak ponpes.
Analysis of the implementation of local wisdom-based learning in the integrated thematic curriculum at MI Pelangi Alam Susanti, Diah; Putri, Imeilia; Mayasari, Mayasari; Nabila, Siti
The Future of Education Journal Vol 4 No 6 (2025)
Publisher : Lembaga Penerbitan dan Publikasi Ilmiah Yayasan Pendidikan Tumpuan Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61445/tofedu.v4i6.701

Abstract

This study explores the integration of local wisdom values into thematic curriculum-based learning at MI Pelangi Alam in Ponorogo. The issue addresses how culturally rooted values such as cooperation, humility, and respect are embedded within educational practices to foster character development among elementary students. The research aims to identify effective strategies for implementing local wisdom in teaching, examine its impact on student awareness and character, and explore challenges faced in curriculum integration. Employing a qualitative approach, data were collected through structured interviews, observations, and documentation analysis involving teachers and students. The findings reveal that MI Pelangi Alam successfully incorporates local cultural elements—such as history, culinary traditions, and religious tourism into lessons, which enhances students' understanding of their identity and local resources. The active learning methods, including project-based and cooperative learning, effectively engage students and promote character values aligned with local culture. Support from the community and continuous teacher training further facilitate the integration process. However, challenges such as curriculum constraints and uneven teacher proficiency highlight areas for improvement. Overall, the incorporation of local wisdom values positively influences students' character development and cultural awareness, contributing to the broader goal of forming respectful, confident, and culturally rooted individuals. This research provides insights into sustainable strategies for embedding local culture into primary education.
The influence of Silane Coupling Agent and porogen ratio on 3D scaffold PCL/HA Faqih, Mu'adz Abdullah; Purniawan, Agung; Rasyida, Amaliya; Susanti, Diah
SINERGI Vol 29, No 3 (2025)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/sinergi.2025.3.016

Abstract

The design of scaffold based on polycaprolactone (PCL) and hydroxyapatite (HA) has attracted attention as a solution for bone tissue regeneration. However, the main challenge in its development is the difficulty in achieving an optimal balance between porosity and mechanical strength. Suboptimal porosity limits the scaffold ability to support cell proliferation, and weak mechanical properties result in the scaffold being less than optimal as a load-bearing implant material during the bone cell regeneration process. This study aims to address these issues by evaluating the effects of the silane coupling agent 3-aminopropyltriethoxysilane (APTES) and the porogen ratio (NaCl) on the mechanical properties, morphology, and biodegradation of PCL-HA-based 3D scaffold. The scaffold were synthesized using the solvent casting/particulate leaching (SCPL) method with varying APTES concentrations (1%, 3%, and 5%) and porogen ratios. (4:1, 6:1, and 8:1). The results of characterization show that the addition of 1% APTES increases compressive strength by 283% and tensile strength by 138% compared to scaffold without APTES. A higher porogen ratio (8:1) results in the highest porosity of 78.16%, but reduces mechanical strength by 84%. The optimal combination was found in scaffold with 1% APTES and a porogen ratio of 4:1, which have optimal mechanical strength, porosity of 69.65%, and a biodegradation time of up to 380 days. This research offers a comprehensive solution to enhance the properties of PCL-HA based 3D scaffold, making a significant contribution to the development of materials for bone tissue engineering applications. 
Co-Authors Achmad Azmy Adhytiawan Adinda Fitria Hidayati Adyansyah, Farhan Afif, Moh. Azmi Afira Ainur Rosidah Agung Purniawan, Agung Agung Seras Perdana Ahmad Ilham Ramadhani Akbar Nur Prasetya Alfanda, Benedicta Dian Amaliya Rasyida Andini, Evi Fuji Anni Rahmat Ardhia Berlianto Ardhyananta, Hosta Arisela Distyawan Augus Tino Tri Widyantoro Ayu Furoidah Azizah, Salma Nur Azwar Manaf Azzah Dyah Pramata Azzah Dyah Pramata, Azzah Dyah Bahfie, Fathan Burniadi Moballa Dah Shyang Tsai Diah Ayu Safitri Dwi Jingga Dharma Kusuma Eli Novita Sari Elok Amaylia Swasthika Candra Endah Lutfiana Erik Prasetyo Errahmah, Syifa' Ervianto, Yohan Fajar Nurjaman Fajarin, Rindang Fakhreza Abdul Faqih, Mu'adz Abdullah Farahdibah, Athirah Fischa Indaya Bathari Fredy Kurniawan Frizka Vietanti Haniffudin Nurdiansah Haniffudin Nurdiansyah Haniffudin Nurdiansyah Haniffudin Nurdiansyah Harahap, Rizki Anwar Hariyati Purwaningsih Hidayat, Mas Irfan Purbawanto Hosta Ardhyananta Indera Cahya Pradana Jayatin Jayatin, Jayatin Joddy Arya Laksmono Kamilah, Imada Millatul Kusuma, George Endri Lita Nur Azizah Luhur Prandika Lukman Noerochiem Lukman Noerochim Malik Anjelh Baqiya Mas Irfan P. Hidayat Maula Nafi Mavindra Ramadhani Mayasari Mayasari, Mayasari Meril Lia Priday Riskiana Mu'adz Abdullah Faqih Muhammad Junaidi Muhammad Rizki Ilhami Muhammad Yunus Nabila, Siti Ni Komang Alit Juliani Noerochiem, Lukman Nurdiansyah, Haniffudin Nurdiansyah, Haniffudin Pratama, Tata Bayu Pratiwi, Vania Mitha Putri, Elisa Beliana Putri, Imeilia Rahma, Elfrida Venia Rahman Faiz Suwandana Rahmawati, Yenni Rakhmawati, Yeny Widya Rasyida, Amaliya Retno Asih Riska Fitri Amalia Rochman Rochiem Rohmannudin, Tubagus Noor Sahat M. R. Nadaek Sigit Tri Wicaksono, Sigit Tri Sipahutar, Wahyu Solafide Siti Nur Aini, Siti Nur Sugiharto, Rochman Sulistijono Sulistijono Sungging Pintowantoro Titik Nuryastuti Tri Mardji Atmono Tsai, Dah Shyang Tubagus Noor Rohmanuddin Vania Mitha Pratiwi Vicko Gestantyo Anugrah Vietanti, Frizka Wahyu Tirta Nugraha Wardhana Restu Dipakusuma Widi Astuti Widyani, Devi Widyastuti Widyastuti Wijaya, Ade Mundari Yeny Widya Rakhmawati Yoga Fredi Arisko Yogi Nuriana Yuli Setiyorini Yurian Ariandi Andrameda