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All Journal PRISMA FISIKA Majalah Geografi Indonesia SEMIRATA 2015 Jurnal Fisika FLUX Jurnal Sinergitas PkM & CSR Community Empowerment JURNAL GEOGRAFIKA (GEOGRAFI LINGKUNGAN LAHAN BASAH)

Irfana Diah Faryuni

Jurusan Fisika Fakultas Matematika Dan Ilmu Pengetahuan Alam Universitas Tanjungpura

Author-ID : 264159

Arts Humanities Earth & Planetary Sciences Economics, Econometrics & Finance Education Environmental Science Materials Science & Nanotechnology Physics Public Health Social Sciences Other

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Optimasi Rangkaian dan Material Kumparan pada Rangkaian Transfer Listrik Tanpa Kabel Terhadap Jarak Jangkauan Pengiriman Energi Listrik Pynanjung, Pramushinta Arum; Lapanporo, Boni Pahlanop; Faryuni, Irfana Diah
PRISMA FISIKA Vol 2, No 2 (2014)
Publisher : Jurusan Fisika, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/pf.v2i2.6143

Telah dilakukan pengujian material dan diameter kumparan pada rangkaian transfer listrik tanpa kabel dengan prinsip resonansi. Pengujian meliputi perancangan rangkaian dan pengujian nilai persentase amplitudo tegangan puncak ke puncak pada kumparan. Tegangan referensi yang diberikan pada rangkaian uji coba transfer listrik yaitu sebesar Â± 7 Volt dan frekuensi yang diberikan oleh rangkaian osilator Â± 1,35 MHz. Berdasarkan pengujian kumparan, kemudian dilakukan optimasi pada rangkaian transfer listrik dengan menggunakan kumparan tembaga berdiameter 32 cm. Kumparan pada rangkaian transmitter dibuat Center Tapped dengan jumlah lilitan sebanyak 24 lilitan dan kumparan reciever 12 lilitan. Rangkaian ini mampu menghidupkan sebuah lampu LED sejauh 50 cm dengan tegangan referensi yang diberikan sebesar Â± 12 Volt dan frekuensi yang diberikan oleh rangkaian osilator Â± 107,105 kHz. Kata kunci : Optimasi, Resonansi, Kumparan, Transmitter, Receiver

EFEK SUMBER KARBON PADA PROPERTI LUMINESENSI BCNO YANG DISINTESIS DENGAN METODE PEMANASAN GELOMBANG MIKRO Feri Ramdani; Irfana Diah Faryuni; Abdul Muid; Joko Sampurno; Bebeh Wahid Nuryadin; Fatimah Arofiati Noor
Jurnal Fisika FLUX Vol 13, No 2 (2016): Jurnal Fisika FLUX Edisi Agustus 2016
Publisher : Lambung Mangkurat University Press

ABSTRACT- A BCNO phosphor was successfully synthesized using a microwave method and atmospheric pressure. The phosphors were prepared from precursors containing boric acid as a boron source, urea as a nitrogen source and poly ethylene glycol (PEG) as a carbon source. The carbon sources were varied by PEG MW 1000, MW 6000 and MW 20000. The objective of this research is to study the effect of variations in the carbon source to the luminescence properties of BCNO that synthesized using microwave. The emission wavelength of the samples are in violet area (380-450 nm) and the highest emission intensity was 47 a.u. produced by BCNO which using PEG MW 20000 as the carbon source.

Analisis Pengaruh Ukuran Pori Terhadap Sifat Listrik Karbon Aktif Dari Limbah Tandan Sawit Pada Prototipe Baterai Handoyo Margi Waluyo; Irfana Diah Faryuni; Abdul Muid
Jurnal Fisika FLUX Vol 14, No 1 (2017): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

The prototype batteries was succesfully made by using activated carbon. This research aimed to examine the effect of pore size on the electrical properties of activated carbon which is used as a battery-making material. Activated carbon is synthesized using H3PO4 activator with concentration variations (mass/volume) of 5%, 10%, 15%, 20%, and 25%. The carbonization was carried out at 400 °C for 1 hour, while activation at 700 °C for 1 hour. The result showed, the pore size effect on the electrical properties of the activated carbon in the battery prototype, especially for the capacitance and internal resistance of the material which has a correlation of 90% and 90.2%, respectively. The sample with 25% H3PO4 has the best pore size of 5.43μm. As the pore size of the activated carbon increases, it has caused increased capacitance and decreased internal resistance of the material. With the pore size of 5.43μm, the capacitance is 5.88mF/g and the internal resistance of the material is 662.02Ω.

APLIKASI METODE PERTANIAN HIDROPONIK SEBAGAI TEKNOLOGI TEPAT GUNA DI KELURAHAN TAMBELAN SAMPIT [THE APPLICATION OF THE HYDROPONIC FARMING METHOD AS AN APPROPRIATE TECHNOLOGY IN KELURAHAN TAMBELAN SAMPIT] Irfana Diah Faryuni; Joko Sampurno
Jurnal Sinergitas PKM & CSR Vol 2, No 2 (2018): April
Publisher : Universitas Pelita Harapan

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

The resident of Kelurahan Tambelan Sampit consists of various segments of society. Most of the male work as laborers, only some people that work as government employees. Most of the female in Kelurahan Tambelan Sampit help her husband by being a laundry worker, selling cookies and domestic helpers. Many of them do not work. In terms of economic level, most of the population is in middle until lower economic levels. The Conditions was motivate the team of community service to add skills in entrepreneurship at Kelurahan Tambelan Sampit, one of them by developing entrepreneurial spirit in the plantation sector to some communities in Kelurahan Tambelan Sampit. The product of this plantation can be used for self-consumption, even for sale, considering the high price of hydroponic vegetables. Therefore, the team of community service is motivated to provide information on appropriate technology in the form of information delivery, training and skill enhancement in hydroponic gardening that is to grow plants with water as the media, to obtain new superior product from Kelurahan Tambelan Sampit, i.e. the hydroponic fresh vegetable product . In addition, the community will provide knowledge on the marketing strategies so that the vegetables can be marketed to consumers. Thus, community service activities can form a productive society, self-reliant, high performing, have strong economic strength and improving the welfare of people living standards.

Uji Kinerja Polipropilena Berfotokatalis Semikonduktor TiO2 pada Fotodegradasi Methylene Blue Asifa Asri; Ilham Lazuardy Arief; Hasanuddin Hasanuddin; Irfana Diah Faryuni; Mega Nurhanisa; Wahyu Hidayat
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 19, No 2 (2022): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Penelitian ini menyelidiki degradasi fotokalitik dari larutan Metilen Biru (MB) yang diberikan pra-perlakuan Polypropylene (PP)/TiO2. PP/TiO2 dibuat dengan proses thermal milling pada suhu 175°C selama 40 menit untuk melapisi permukaan PP dengan TiO2. Hal ini bertujuan untuk melapisi permukaan polipropilena (PP) dengan TiO2 sebagai upaya modifikasi material karena sukarnya pemisahan TiO2 dari limbah. UV-vis digunakan untuk mengkarakterisasi sifat fotokatalitik dari sampel. Sebanyak 84,70 g sampel digunakan untuk mendegradasi 3,12.10-6 M MB (250 ml limbah artifisial). Dengan tata eksperimen yang sama, sampel yang sama digunakan berulang sebanyak delapan kali untuk mempelajari efek penggunaan berulang pada aktvitas fotokatalitik material. Dari penelitian yang telah dilakukan, ditemukan bahwa hampir 90% (rata-rata) MB tereduksi oleh PP/TiO2 selama tiga hari percobaan dan 8 kali pengulangan. Yang lebih penting, komposit PP/TiO2 berpotensi untuk dapat digunakan berulang (lebih dari 8 kali) dengan sedikit penurunan kemampuan fotodegradasi.

Geophysical data acquisition education for high school students through field observation Muhardi, Muhardi; Putra, Yoga Satria; Perdhana, Radhitya; Jumarang, Muh Ishak; Sampurno, Joko; Muliadi, Muliadi; Ihwan, Andi; Adriat, Riza; Zulfian, Zulfian; Sutanto, Yuris; Faryuni, Irfana Diah
Community Empowerment Vol 10 No 3 (2025)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ce.12423

Most high school students in Singkawang City and Bengkayang Regency still require a more comprehensive understanding regarding the application of geophysics, which can impact their skills in conducting field observations. This Community Service (PkM) aims to enhance students' skills in geophysical data acquisition through field observations at Karta Beach, Bengkayang Regency. The activity was carried out in three stages: preparation, implementation, and evaluation. During the implementation stage, participants were educated about geophysical data acquisition through field observations, including geoelectric, self-potential, meteorology, and geology practicums. Based on the evaluation results, a score of 87.31 (very good) was obtained, indicating an increase in students' skills in geophysical data acquisition through field observations.

Enhancing high school students’ understanding and skills in geophysical surveying and data processing: A service learning Jumarang, Muhammad Ishak; Putra, Yoga Satria; Muliadi, Muliadi; Ihwan, Andi; Sampurno, Joko; Faryuni, Irfana Diah; Zulfian, Zulfian; Adriat, Riza; Perdana, Radhitya; Muhardi, Muhardi
Community Empowerment Vol 10 No 6 (2025)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ce.12716

Knowledge and skills in geophysical surveying and data processing are unique areas for high school students interested in environmental conditions. This community engagement activity aimed to enhance the understanding and skills of high school students in Pontianak City regarding geophysical surveying and data processing through direct field observations. The activity spanned five months, from June to October 2024, and included several stages: preparation, implementation, and evaluation. Evaluation was conducted with 41 participants, achieving a success index of 90.54%. These evaluation results indicate that the activity met the expectations of most participants. Key aspects such as participant satisfaction, program utility, material comprehension, presenter/facilitator delivery, and time allocation received very high appreciation from the participants.

Analisis Kerawanan Erosi Dengan Metode Clustering dan Pembobotan Berbasis Google Earth Engine di Kecamatan Toba, Kalimantan Barat Septi, Firli Nisa; Sampurno, Joko; Faryuni, Irfana Diah
Majalah Geografi Indonesia Vol 40, No 1 (2026): In Progres
Publisher : Fakultas Geografi, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/mgi.111478

Abstact. Erosi tanah merupakan salah satu permasalahan lingkungan yang signifikan dan perlu mendapat perhatian serius, khususnya di daerah dengan intensitas curah hujan tinggi serta perubahan tata guna lahan akibat aktivitas pertambangan, perkebunan, maupun aktivitas manusia lainnya, seperti yang terjadi di Kecamatan Toba, Kabupaten Sanggau, Kalimantan Barat. Kondisi ini tidak hanya dapat mengancam kelestarian dan fungsi lahan, tetapi juga berpotensi menurunkan kesuburan tanah, mengurangi produktivitas pertanian, serta mengakibatkan degradasi lingkungan yang berdampak langsung maupun tidak langsung bagi masyarakat serta ekosistem sekitarnya. Oleh sebab itu, penelitian ini bertujuan untuk menganalisis tingkat kerawanan erosi di Kecamatan Toba dengan memanfaatkan metode clustering dan pembobotan berbasis platform Google Earth Engine (GEE). Analisis dilakukan dengan lima parameter utama, yaitu kemiringan lereng, tekstur tanah, curah hujan, Indeks vegetasi (NDVI), dan tutupan lahan pada periode 2019–2024. Parameter-parameter ini diklasifikasi ke dalam lima kelas, kemudian dikombinasikan dengan pembobotan untuk menghasilkan peta tingkat kerawanan erosi. Hasil penelitian menunjukkan sebagian besar wilayah Kecamatan Toba berada pada tingkat kerawanan sedang hingga tinggi, dengan luasan masing-masing sebesar 55.898 ha (49,6%) dan 11.950 ha (10,6%). Area dengan kerawanan rendah tercatat seluas 42.331 ha (37,5%) dan area sangat rawan seluas 2.583 ha (2,3%), sedangkan kelas tidak rawan tidak ditemukan. Model peta kerawanan erosi divalidasi menggunakan data titik kejadian longsor sebagai proxy tingkat kerawanan erosi dan menghasilkan tingkat akurasi 98,61%. Dengan demikian, penelitian ini dapat memberikan informasi penting mengenai distribusi spasial tingkat kerawanan erosi dan menjadi acuan strategis bagi pemerintah daerah, peneliti, maupun pihak terkait lainnya dalam perencanaan pengelolaan lahan, penyusunan strategi konservasi tanah, serta upaya mitigasi risiko erosi secara tepat.Abstract.Soil erosion poses a major threat to environmental sustainability in humid tropical regions that are undergoing rapid land-use changes. The Toba District, Sanggau Regency, West Kalimantan, is particularly vulnerable because of the high rainfall intensity combined with extensive mining activities, plantation expansion, and other anthropogenic disturbances. These pressures accelerate land degradation, reduce soil fertility and agricultural productivity, and threaten the ecosystem services and local livelihoods. This study aimed to spatially assess and map soil erosion vulnerability in the Toba District, supporting sustainable land management and spatial planning efforts. The analysis was conducted using the cloud-based Google Earth Engine (GEE) platform, applying an integrated clustering and weighted overlay approach. Five key erosion-controlling parameters were incorporated: slope gradient, soil texture, rainfall intensity, vegetation condition represented by the Normalized Difference Vegetation Index (NDVI), and land cover dynamics from 2019 to 2024. Each parameter was classified and weighted according to its relative influence on erosion processes to produce a comprehensive erosion vulnerability map. The results indicate a widespread vulnerability to erosion across the study area. Medium-vulnerability zones dominated, covering 55,898 ha (49.6%), followed by low-vulnerability regions, which accounted for 42,331 ha (37.5%). High- and very-high-vulnerability classes accounted for 11,950 ha (10.6%) and 2,583 ha (2.3%), respectively, with no non-vulnerable areas identified. Validation against historical landslide data as a proxy for erosion vulnerability yielded an overall accuracy of 98.61%. The resulting map provides a robust decision-support tool for prioritizing soil conservation measures and strategies to mitigate erosion risk.Submitted: 2025-09-25 Revisions: 2025-11-19 Accepted: 2026-02-01 Published: 2024-02-06

Tidal Flood Mapping with a Simple Bathtub Model in Sungai Kakap District, Indonesia Farhan, Andin Maulana Yusuf; Sampurno, Joko; Faryuni, Irfana Diah
Jurnal Geografika (Geografi Lingkungan Lahan Basah) Vol 6, No 2 (2025): GEOGRAFIKA
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jgp.v6i2.16880

The Sungai Kakap District in West Kalimantan is highly vulnerable to tidal flooding (rob) because of its low-lying coastal environment. Accurate mapping of flood extent is crucial for supporting disaster risk reduction and mitigation planning. This study applied water level data combined with a Digital Elevation Model (DEM) processed using the Simple Bathtub Model to map tidal flood extent during the December 2024 event. The generated flood maps were further analyzed to assess their impact on infrastructure and population exposure. The validation results demonstrated that the model achieved an overall accuracy of 0.74 and a Kappa coefficient of 0.43, indicating that the Simple Bathtub Model provides a reasonably reliable representation of tidal flood extent. The analysis indicated that the December 2024 flood inundated approximately 150,000 m of road networks, submerged between 900 and 1,000 buildings, and affected an estimated 16,000 to 17,000 residents. These findings highlight the high vulnerability of low-lying coastal communities in West Kalimantan and demonstrate the value of adopting simple yet effective modeling approaches as practical tools for disaster risk reduction, mitigation planning, and long-term coastal resilience.

Co-Authors . Apriansyah Aang Kurniady Abdul Muid Abdul Muid Abdurrahman Bahtiar Andi Ihwan Antini, Oktari Apriani, Ririn Asifa Asri Bebeh Wahid Nuryadin Bintoro Siswo Nugroho Boni Pahlanop Lapanporo Dwiria Wahyuni Erwan Erwan, Erwan Evelin, Luluk Surya Farhan, Andin Maulana Yusuf Fatimah Arofiati Noor Feri Ramdani Handoyo Margi Waluyo Haryanti, Nida Hasanuddin Hasanuddin Hendri Hendri Ilham Lazuardy Arief Joko Sampurno Joko Sampurno Jumarang, Muh Ishak Khaidar, Hafidh Rayana Kushadiwijayanto, Arie Antasari Lestari, Diyah Dwi Maysharoh, Siti Mega Nurhanisa Muh. Ishak Jumarang Muhardi Muliadi Nurhadiansyah, Alif Nurhasanah Nurhasanah Perdana, Radhitya Perdhana, Radhitya Pramushinta Arum Pynanjung Putri, Mentarie Resthu Ramadhani, Athaya Rana Ramdani, Feri Riza Adriat Septi, Firli Nisa Wafha Fardiah Wahyu Hidayat Wahyu Hidayat Waluyo, Handoyo Margi Wulandari, Tiwuk Yoga Satria Putra Yuris Sutanto Zulfian Zulfian

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