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All Journal Jurnal Sains Dasar Jurnal Spektra JOURNAL ONLINE OF PHYSICS SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan International Journal of Hydrological and Environmental for Sustainability PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Jurnal Riset Fisika Indonesia Dedikasi: Jurnal Pengabdian Kepada Masyarakat
Lucky Zaehir Maulana
Universitas Jambi
Religion Agriculture, Biological Sciences & Forestry Humanities Astronomy Chemical Engineering, Chemistry & Bioengineering 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 Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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Foto Mikroskopi dan Kuat Tekan komposit plastik magnet Ferit Zaehir Maulana, Lucky; Yulianto, Agus; Sulhadi, Sulhadi
Jurnal Spektra Vol 14, No 1 (2013): Spektra: Jurnal Fisika dan Aplikasinya
Publisher : Jurnal Spektra

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Abstract

Telah dibuat komposit magnet dari campuran Ferro Ferrite (FeO.Fe2O3) dan LDPE. LDPE merupakan jenis plastik yang banyak beredar di pasaran. Komposit yang dihasilkan berbentuk bulk. Metode konfensional pembuatan magnet adalah metode metalurgi serbuk, solgel, kuenching dll, namun pada penelitian ini peneliti menggunakan metode lain. Metode yang digunakanadalah melt and blending yaitu dengan mencampurkan bahan saat bahan meleleh kemudian dicetak. Dari karakterisasi dengan Mikroskop Digital CCD terlihat bahwakomposit magnet yang dihasilkan memiliki homogenitas relatif tinggi. ADR touch 2000 standard digunakan untuk mengetahui kuat tekan komposit ini, dan dihasilkan ketahanan kuat tekan sampai 2,27 tonf saat sample mulai terdeformasi.Kata kunci: Ferro Ferrite, Plastic, Composite
Aplikasi low density polyethylene (LDPE) pada pembuatan magnet ferrite komposit Lucky Zaehir Maulana; Agus Yulianto; Sulhadi '
Jurnal Sains Dasar Vol 2, No 1 (2013): April 2013
Publisher : Faculty of Mathematics and Natural Science, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (205.942 KB) | DOI: 10.21831/jsd.v2i1.3571

Abstract

Abstrak Telah dibuat komposit magnet dari campuran ferro ferrite (FeO.Fe2O3)/ stronsium ferrite (SrO.6Fe2O3) dan plastik low density polyethylene (LDPE). Low density polyethylene (LDPE) merupakan jenis plastik yang banyak dikenal di pasaran. Komposit yang dihasilkan berbentuk bulk. Metode yang digunakan adalah dengan mencampurkan bahan saat bahan meleleh kemudian dicetak. Dari karakterisasi dengan Mikroskop ini, dan dihasilkan ketahanan kuat tekan sampai 725.84 kgf/cm2 untuk ferro ferrite dan sampel stronsium ferrite memiliki ketahanan rata-rata sebesar 500 kg/cm2 saat sampel mulai terdeformasi. Dari uji magnetisasi diketahui sampel merupakan hard magnet dengan medan remanen 0,1 kG sampai 0,97 kG. Medan koersif berkisar 1.011 kOe sampai 1.297 kOe. Kata kunci: ferro ferrite, komposit, plastik, stronsium ferrite
Foto Mikroskopi dan Kuat Tekan komposit plastik magnet Ferit Lucky Zaehir Maulana; Agus Yulianto; Sulhadi Sulhadi
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 2 (2013): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2013
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (229.93 KB)

Abstract

Telah dibuat komposit magnet dari campuran Ferro Ferrite (FeO.Fe2O3) dan LDPE. LDPE merupakan jenis plastik yang banyak beredar di pasaran. Komposit yang dihasilkan berbentuk bulk. Metode konfensional pembuatan magnet adalah metode metalurgi serbuk, solgel, kuenching dll, namun pada penelitian ini peneliti menggunakan metode lain. Metode yang digunakan adalah melt and blending yaitu dengan mencampurkan bahan saat bahan meleleh kemudian dicetak. Dari karakterisasi dengan Mikroskop Digital CCD terlihat bahwa komposit magnet yang dihasilkan memiliki homogenitas relatif tinggi. ADR touch 2000 standard digunakan untuk mengetahui kuat tekan komposit ini, dan dihasilkan ketahanan kuat tekan sampai 2,27 tonf saat sample mulai terdeformasi. Kata kunci: Ferro Ferrite, Plastic, Composite.
Peningkatan kompetensi penulisan karya ilmiah guru di SMA Negeri 8 Tanjung Jabung Timur Maison Maison; Alrizal Alrizal; Dwi Agus Kurniawan; Febri Berthalita Pujaningsih; Lucky Zaehir Maulana
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 8, No 1 (2024): March
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v8i1.20546

Abstract

AbstrakGuru harus mampu menulis karya ilmiah untuk meningkatkan karir dan memajukan pengembangan profesinya. Namun, kurangnya pengetahuan dan pengalaman menyebabkan banyak guru kesulitan dalam menulis karya ilmiah. Kegiatan pelatihan ini bertujuan untuk meningkatkan kompetensi guru-guru dalam menulis dan mempublikasikan karya ilmiah. Kegiatan pelatihan dilaksanakan pada tanggal 7 Agustus 2023 di SMAN 8 Tanjung Jabung Timur yang dihadiri oleh 12 peserta. Pelaksanaan kegiatan terdiri dari tahapan persiapan, pelaksanaan, dan evaluasi. Metode yang digunakan terdiri dari metode ceramah, diskusi, penugasan dan pendampingan. Metode ceramah dilakukan terkait pemberian pengetahuan teoretis dan praktis penulisan karya ilmiah, metode penugasan terkait pembuatan karya ilmiah dan pembimbingan teknis publikasi di jurnal ilmiah.  Hasil kegiatan PKM menunjukkan bahwa peserta memberikan respon yang positif terhadap pelaksanaan kegiatan. Selain itu, kegiatan ini dapat meningkatkan pemahaman guru-guru dalam menulis karya ilmiah dan mempublikasikannya ke jurnal-jurnal ilmiah. Kata kunci: kompetensi; karya ilmiah; publikasi. Abstract Teachers must be able to write scientific papers to improve their careers and advance their professional development. However, the lack of knowledge and experience causes many teachers to struggle in writing scientific papers. This training activity aims to overcome the problems faced by teachers in writing and publishing scientific papers. The training activity was held on August 7, 2023 at SMAN 8 Tanjung Jabung Timur which was attended by 12 participants. The implementation of the activity consisted of preparation, implementation, and evaluation stages. The methods used consisted of lectures, discussions, assignments and mentoring. The lecture method was carried out related to providing theoretical and practical knowledge of writing scientific papers, the assignment method related to making scientific papers and technical guidance for publication in scientific journals. The results of the PKM activities showed that the participants gave a positive response to the implementation of the activities. In addition, this activity can increase the understanding of teachers in writing scientific papers and publishing them in scientific journals. Keywords: competence; scientific work; publication.
Internet of Things (IoT) and Arduino IDE as a Smart Water Quality Control for Monitoring in Catfish Ponds Saparullah, Rizky; Pebralia, Jesi; Maulana, Lucky Zaehir
International Journal of Hydrological and Environmental for Sustainability Vol 3, No 1 (2024): International Journal of Hydrological and Environmental for Sustainability
Publisher : CV FOUNDAE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58524/ijhes.v3i1.415

Abstract

This research aims to develop a monitoring and control system for catfish pond water quality based on the Internet of Things (IoT). This system uses an ESP32 microcontroller Arduino Integrated Development Environment (IDE) connected to a SEN0131 pH sensor, DS18B20 temperature sensor, and HC-SR04 ultrasonic sensor to monitor water quality parameters such as pH, temperature, and water level. Data obtained from these sensors is stored in a real-time database that can be accessed remotely via the Blynk application. This system is also equipped with a water pump and solenoid valve that automatically controls water filling and discharge based on detected water quality parameters. The test results show that the system has an average accuracy of 99.45% and high precision with an average relative standard deviation of 0.01% in detecting water quality parameters. System operation was carried out for 27 days. The system can run continuously or non-stop. data is input in real-time to blynk, so it can be monitored and controlled from anywhere.
X-Ray Fluorescence Monitoring Metal Content and Nutrient Elements for Predicting Soil Fertility Parameters Based on pH in Ultisol Soil Samsidar, Samsidar; Maison, Maison; Ermadani, Ermadani; Latief, Madyawati; Pebralia, Jesi; Riany, Hesti; Amanda, Dwi Rahma; Maulana, Lucky Zaehir
International Journal of Hydrological and Environmental for Sustainability Vol 2, No 3 (2023): International Journal of Hydrological and Environmental for Sustainability
Publisher : CV FOUNDAE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58524/ijhes.v2i3.290

Abstract

Soil fertility parameters, including macronutrients, micronutrients, and metal content, are very important for optimizing agricultural and plantation land management. Ultisol is a type of soil that is commonly used as a planting medium for oil palm plantations, rubber, and various types of vegetables. Continuous land use causes variations in nutrient and metal content. This change is also caused by the fertilization process and the characteristics of the plants grown in the area. In this study, an analysis of soil fertility parameters (macronutrients, micronutrients, and metal content) was analyzed using X-Ray Fluorescence (XRF) on Ultisol soil taken from Muara Jambi Regency, Indonesia. This analysis was conducted across land-use areas (Palm, Rubber, Vegetables, and Forest). Subsequently, the obtained measurements were used to model correlations with soil pH values to predict soil fertility parameters. The quantitative results showed that the metal content values were reasonably consistent across all locations regarding metal types and their percentage concentrations. However, locations 1 (T1) and 2 (T2) have higher aluminum (Al) content than locations 3 and 4 and lower magnesium (Mg) content. The modeling, when correlated with pH values, indicated that metal elements correlated 0.938, macronutrients 0.934, and micronutrients 0.767. From these correlations, it can be qualitatively inferred that there is a strong relationship between pH and the presence of metal content, macronutrients, and micronutrients. In the future, this can serve as a model for estimating the presence of soil fertility parameters.
THE EFFECT OF MILLING ON PARTICLE SIZE AND CRYSTAL STRUCTURE IN MECHANOCHEMICAL PROCESSING OF LEAD-CONTAMINATED SYNTHETIC SOIL Lagowa, Muhammad Ikrar; Maulana, Lucky Zaehir
JOURNAL ONLINE OF PHYSICS Vol. 10 No. 2 (2025): JOP (Journal Online of Physics) Vol 10 No 2
Publisher : Prodi Fisika FST UNJA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jop.v10i2.43457

Abstract

crystal structure, which can immobilize lead and mitigate environmental contamination. Milling as a mechanical treatment plays a critical role in determining the final properties of the processed material. This study investigates the role of particle size and crystal structure in the mechanochemical treatment of lead-contaminated synthetic soil. Two synthetic soil samples were prepared in the laboratory, including lead contamination. Milling of the contaminated soils was carried out in a planetary ball mill. The samples were analysed using a lasersizer and X-Ray Diffraction (XRD) to investigate the change in particle size and identify the crystalline phase after milling. The results showed that milling initially reduced particle size, but further milling resulted in particle agglomeration, which was reflected by partial amorphization in soil samples after milling. Other than the partial amorphization, no phase change was detected in the crystal structure. In conclusion, milling resulted in the change of particle size but did not affect the crystalline phase of the milled sample, despite of partial amorphization.
SOSIALISASI PENERAPAN TEKNOLOGI OTOMATIS PENGERING “KERUPUK BAKAR” GUNA MENGATASI KETERGANTUNGAN PROSES PENGERINGAN DENGAN PANAS MATAHARI DI KELURAHAN JELMU KECAMATAN PELAYANGAN, KOTA JAMBI Deswardani, Frastica; Pebralia, Jesi; Anggraini, Rista Mutia; Afrianto, Muhhamad Ficky; Maulana, Lucky Zaehir
Bestari: Jurnal Pengabdian Kepada Masyarakat Vol 5, No 1 (2025)
Publisher : Sekolah Tinggi Keguruan dan Ilmu Pendidikan (STKIP) Melawi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46368/dpkm.v5i1.2861

Abstract

The production of "kerupuk bakar" (grilled crackers) in Jelmu Subdistrict, Pelayangan District, Jambi City, faces drying challenges due to dependence on sunlight, particularly during the rainy season. This community service activity aims to introduce automatic drying technology to reduce weather dependency. The technology features a heating system with adjustable temperature and time settings, providing an efficient, fast, and consistent drying process. Methods include training on equipment usage and mentoring for local "kerupuk bakar" entrepreneurs. Results show that the implementation of automatic drying technology improves productivity, quality stability, and local entrepreneurs' income. This activity is expected to be a long-term solution to support economic growth in the region’s home industries.
Thermal Comfort and Airflow in Air-Conditioned Systems: Insights from Computational Fluid Dynamic Simulations Pebralia, Jesi; Aryanti, Yesi; Maulana, Lucky Zaehir; Restianingsih, Tika; Wulandari, Marita
International Journal of Hydrological and Environmental for Sustainability Vol 4, No 2 (2025): International Journal of Hydrological and Environmental for Sustainability
Publisher : CV FOUNDAE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58524/ijhes.v4i2.768

Abstract

Air conditioning (AC) systems are vital for ensuring thermal comfort in enclosed spaces, particularly in tropical regions like Indonesia, where high temperatures and humidity can challenge human productivity and well-being. This study investigates airflow distribution patterns in air-conditioned rooms using computational fluid dynamics (CFD) simulations, specifically employing the SST k-ω turbulence model. Simulations were conducted in a 3.5 × 3.55 × 3 m closed room with varied inlet temperatures (289.15–297.15 K) and airflow velocities (2–4 m/s). Results indicate that for every 2 K increase in inlet temperature, the average room temperature rises by approximately 1.37 K. Additionally, a 0.5 m/s increment in airflow velocity leads to an average temperature increase of 0.16 K. The airflow was observed to form a dominant jet stream from the AC inlet, flowing diagonally toward the lower part of the room, creating a low-altitude recirculation zone. This phenomenon influences thermal mixing and occupant comfort significantly. Validation of the CFD model revealed its robustness, with an average temperature deviation of 328.15 K and an Nash-Sutcliffe Efficiency (NSE) score of 0.858. Furthermore, the study suggests optimizing AC placement and operation parameters to enhance energy efficiency while maintaining comfort. These findings provide actionable insights into airflow behavior in tropical environments, promoting better design practices for cooling systems, which are crucial for sustainable development and improved living conditions in tropical climates.
Pembuatan dan Karakterisasi Scaffold Hidroksiapatit (HAp) dari Limbah Tulang Ikan Tenggiri (Scomberomorus commerson) Rohania, Meisa; Deswardani, Frastica; Fendriani, Yoza; Anjelina, Ria; Anggraini, Rista Mutia; Maulana, Lucky Zaehir; Pujaningsih, Febri Berthalita
Jurnal Riset Fisika Indonesia Vol 5 No 2 (2025): Juni
Publisher : Jurusan Fisika, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jrfi.v5i2.6410

Abstract

Defects in bone tissue represent a significant health concern and continue to pose challenges in clinical surgery. The fabrication of scaffolds from hydroxyapatite (HAp) can support bone regeneration. However, producing HAp scaffolds with ideal pore structures for effective bone tissue engineering remains difficult. In recent decades, many studies have attempted to enhance HAp scaffolds by incorporating polymeric materials to address their limitations. In this study, corn starch was used as a pore-forming agent, and polyvinyl alcohol (PVA) served as a binder and pore size regulator. The scaffolds were fabricated using the freeze-drying method, which offers the advantage of forming porous structures while maintaining scaffold integrity. This study investigated the effects of varying PVA additions which 3 wt%, 7 wt%, and 10 wt%. XRD analysis showed that the diffraction peaks of all samples corresponded to the HAp phase, displayed β-TCP peaks, and a crystal size with values ranging from 0.96 nm to 11.77 nm.  SEM analysis showed that the HAp-7 scaffold has the largest pore size distribution range of about 1.19 µm to 11.77 µm.
Co-Authors -, Maison Afrianto, Muhhamad Ficky Agus Yulianto Agus Yulianto Agus Yulianto Alrizal Alrizal Amanda, Dwi Rahma Anggraini, Rista Mutia Anjelina, Ria Aryanti, Yesi Berliana, Aulia Putri Dwi Agus Kurniawan Ermadani Ermadani Febri Berthalita Pujaningsih Frastica Deswardani Madyawati Latief Muhammad Ikrar Lagowa Pebralia, Jesi Restianingsih, Tika Riany, Hesti Rohania, Meisa Samsidar Samsidar Saparullah, Rizky Sulhadi ' Sulhadi - Sulhadi Sulhadi Wulandari, Marita Yoza Fendriani