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All Journal Jurnal Geliga Sains: Jurnal Pendidikan Fisika Jurnal Pengabdian Kepada Masyarakat Universitas Bangka Belitung JURNAL ILMIAH PENDIDIKAN FISIKA AL BIRUNI JOURNAL ONLINE OF PHYSICS Gravity : Jurnal Ilmiah Penelitian dan Pembelajaran Fisika Jurnal Fisika FLUX Journal of Applied Geospatial Information Jurnal Penelitian Pendidikan IPA (JPPIPA) Journal of Appropriate Technology for Community Services Stannum : Jurnal Sains dan Terapan Kimia Abimanyu: Journal of Community Engagement Jurnal Riset Fisika Indonesia MINERAL Dharma Pengabdian Perguruan Tinggi (DEPATI)

Anisa Indriawati

Department Of Physics, Faculty Of Engineering, University Of Bangka Belitung, Bangka 33172, Indonesia

Author-ID : 2876600

Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Physics Social Sciences Other

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KONSERVASI AIR TANAH MELALUI PEMBUATAN BIOPORI SEBAGAI UPAYA MENGATASI KEKERINGAN DI DESA JADA BAHRIN KECAMATAN MERAWANG Anisa Indriawati; Irvani Irvani; Dini Wulansari; Taman Tono; Monika P Handayani
Jurnal Pengabdian Kepada Masyarakat Universitas Bangka Belitung Vol 2 No 1 (2015): Jurnal Pengabdian Kepada Masyarakat Universitas Bangka Belitung
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jpu.v2i1.123

Water plays a very important role for humans and the surrounding environment. The amount of water in a particular area can be analyzed through the geology and geohydrology of the area. The lack of water resources in Jada Bahrain Village requires a conservation effort. The conservation efforts made are by making biopores. Making biopores aims to store water reserves so as to overcome drought. The amount of stored water volume can be predicted through the biopore infiltration rate. From the infiltration data obtained, 50 biopore holes in Jada Bahrain Village are estimated to be able to infiltrate water as much as 6286.23 mL/second.

The Potential of Pepper Shell (Piper Nigrum) for Supercapacitor Electrodes Widodo Budi Kurniawan; Anisa Indriawati; Dewi Marina; Erman Taer
Jurnal Ilmiah Pendidikan Fisika Al-Biruni Vol 8, No 1 (2019): Jurnal Ilmiah pendidikan Fisika Al-Biruni
Publisher : Universitas Islam Negeri Raden Intan Lampung, Indonesia

A study has been carried out on supercapacitor electrodes as an electrical energy storage media based on pepper shell activated carbon. The Synthesis is done by mixing the waste carbon pepper shell with an activator HCl with a ratio of 1 : 4. Furthermore, the activated carbon is activated physically by using a pyrolysis temperature of 600 0C. The SEM results indicate that carbon has a porous morphology with a pore size of 24.6 nm which is a mesoporous category. Electrochemical properties are analyzed using cyclic voltammetry (CV). The CV results at the scan rate of 1 mV/s indicate the specific capacitance value generated is 0.45 Fg-1. The results showed that pepper shell waste has the potential to be used as a supercapacitor electrode material

Study of The Variation of Activating Agents on Specific Capacitance Values on The Synthesis of Supercapacitor Electrodes Based on Pepper Peel Waste Widodo Budi Kurniawan; Anisa Indriawati; Siska Oktaviani
Jurnal Geliga Sains: Jurnal Pendidikan Fisika Vol 9, No 1 (2021)
Publisher : Program Studi Pendidikan Fisika FKIP Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jgs.9.1.19-25

The by-product of pepper production in Bangka Belitung is the waste of pepper skin. This waste tends to be untapped and thrown away so that it can disrupt the environmental ecosystem. One of the efforts to utilize pepper skin waste is processing it into activated carbon as the base material for supercapacitor electrodes. The initial stage of the synthesis was carried out by a pre-carbonization process on a sample of dry and clean pepper peel waste. Furthermore, the sample is chemically activated using a chemical activator and also physical activation at a temperature of 700ºC in N2 gas flow conditions. The activated carbon resulting from the activation is then molded into electrode plates in the form of pellets with a diameter of 1 cm. The electrode plates were characterized using a scanning electron microscope-energy dispersive x-ray (SEM-EDX) to determine morphology and cyclic voltammetry (CV) to determine the specific capacitance value. SEM test results show that the electrode sample has porous morphology and CV results show that the sample activated using the KOH activator has a specific capacitance value of 15.20 F/g. These results indicate that the activated carbon synthesized from the waste of pepper peel can be used as a supercapacitor electrode material and also a solution for overcoming the negative effects of pepper skin waste.

SINTESIS PERANCAH HIDROKSIAPATIT BERPORI DARI LIMBAH CANGKANG KERANG MENGGUNAKAN METODE REPLIKASI SPONS POLYURETHANE Fitri Afriani; Anisa Indriawati; Widodo Budi Kurniawan; Yekti Widyaningrum; Rifqi Almusawi Rafsanjani; Yuant Tiandho
Gravity : Jurnal Ilmiah Penelitian dan Pembelajaran Fisika Vol 6, No 1 (2020)
Publisher : Universitas Sultan Ageng Tirtayasa

Researchers have synthesized hydroxyapatite-based porous scaffolds by the polyurethane sponge replication methods. Hydroxyapatite was derived from waste cockle shells through the co-precipitation method. The synthesis of porous scaffolds through the sponge replication methods is carried out by absorbing hydroxyapatite slurry through the addition of PVA and then followed by heating at 900oC to decompose the polyurethane and PVA. The best of slurry that can produce a porous scaffold in this study is the slurry that prepared through the ratio of hydroxyapatite:PVA = 80:20. The decomposition of the two polymers will leave macropores on the scaffold with an average size of 460 μm. Based on the thermogravimetric analysis, X-ray diffraction and FTIR spectrophotometer revealed that the PVA and polyurethane sponge were correctly decomposed, except for scaffolds with 40% PVA. Thus, the porous scaffolds synthesized in this study satisfies the requirements of porous scaffolds for the bone therapy process.

KAJIAN SIFAT KEMAGNETAN PADA FREE LAYER NiFe DAN CoFeB BERDASARKAN SIMULASI MIKROMAGNETIK Anisa Indriawati; Galih Setyawan; Edi Suharyadi
Jurnal Fisika FLUX Vol 18, No 2 (2021): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Telah dilakukan simulasi mikromagnetik free layer NiFe dan CoFeB, dengan ukuran free layer 500 nm×200 nm×5 nm. Free layer NiFe dan CoFeB dapat diaplikasikan pada Magnetic Tunnel Junction. Pemberian medan magnet luar sebesar 0 mT sampai dengan 20 mT mengakibatkan terjadinya pergeseran domain wall magnetik.berdasarkan hasil simulasi mikromagnetik,pada kurva hubungan antara medan magnet luar dan nilai magnetisasi, terlihat perbedaan trend yang signifikan pada pemberian medan magnet luar di atas 11 mT Pada medan magnet 20 mT, momen magnetik CoFeB belum terlalu menunjukkan terjadinya saturasi, sedangkan pada NiFe mulai menunjukkan trend menuju saturasi. Besarnya energy anisotropi bernilai maksimum pada saat free layer NiFe dan CoFeB diberikan medan magnet luar sekitar 0,7 mT, dan bernilai minimum saat medan magnet luar sebesar 20 mT. KATA KUNCI: NiFe, CoFeB, Spintronik, Magnetisasi, Energi Anisotropi

Analisa Pergeseran Domain Wall Magnetik pada Permalloy dengan Ukuran Nano Anisa Indriawati
Jurnal Fisika FLUX Vol 14, No 2 (2017): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Telah dilakukan penelitian tentang pemodelan lapisan tipis permalloy dengan ukuran . Pemodelan dilakukan dengan menggunakan software Object Oriented Micromagnetic Framework (OOMMF). Lapisan tipis permalloy diberi medan magnet luar sebesar 0 mT hingga 1000 mT dengan arah +x, +y, dan +z. Tujuan dari penelitian ini ialah untuk mengamati perbedaan fenomena jika lapisan tipis permalloy diberi medan magnet luar dengan arah yang berbeda (dengan besar yang sama). Selanjutnya melalui pemodelan ini dapat diketahui arah yang mana yang lebih mudah untuk memagnetisasi seluruh momen magnetik pada lapisan tipis permalloy. Hasil penelitian menunjukkan momen magnetik lapisan tipis permalloy lebih mudah termagnetisasi jika arah medan mengarah pada +x, dan paling sulit termagnetisasi jika arah yang diberikan +z. pada medan magnet luar 1000 mT pada arah z, nilai magnetisasi hanya 0.9474 yang menandakan bahwa belum terjadi saturasi di seluruh momen magnetik.

Identification of Subsurface Rock Structure of Non-Volcanic Geothermal Systems Based on Gravity Anomalies (Terak Village, Central Bangka Regency) Reza Firdaus; Siska Oktaviyani; Putri Hardianti; Tri Kusmita; Anisa Indriawati
Journal of Applied Geospatial Information Vol 5 No 2 (2021): Journal of Applied Geospatial Information (JAGI)
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jagi.v5i2.3640

Abstract Geothermal manifestations on Bangka Island are found in the villages of Terak, Pemali, Sungailiat/Pelawan, Dendang, Permis, and Nyelanding. The manifestation of hot water in Terak Village, Central Bangka Regency is in the form of 3 hot springs with a surface temperature of 55ᵒC this research is to be carried focus on the structure of the subsurface rock layers using the geophysical method, namely the gravity method. The data used are topography and Free Air Anomaly. The data processing is in the form of Bouguer Correction and Terrain Correction to obtain the Complete Bouguer Anomaly (CBA) value. Then the CBA value is separated from regional anomalies and residual anomalies using the upward continuation method, as well as 2D modeling interpretation (forward modeling). From the research results, it is known that the subsurface rock structure of the non-volcanic geothermal system in Terak Village in the form of sandstone (2.28 – 2.49 gr/cm3) at a depth of 0 – 1.44 km is estimated as caprock, granite (2.77 – 2.78 gr/cm3) at a depth of 0 – 1.8 km is estimated as reservoir rock, and diorite rock (2.87 – 2.99 gr/ cm3) at a depth of 0 – 2 km is estimated as basement rock.

SEBARAN MINERAL IKUTAN TIMAH DI WILAYAH BEKAS PENAMBANGAN MENGGUNAKAN METODE SELF POTENTIAL (SP) SEBAGAI INDIKASI AWAL KETERDAPATAN LOGAM TANAH JARANG (LTJ) Tri Kusmita Kusmita; Anisa Indriawati; Yekti Widyaningrum
JOURNAL ONLINE OF PHYSICS Vol. 7 No. 2 (2022): JOP (Journal Online of Physics) Vol 7 No 2
Publisher : Prodi Fisika FST UNJA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jop.v7i2.18282

Indonesia mempunyai potensi besar untuk menjadi produsen logam tanah jarang (LTJ) yang semakin dibutuhkan untuk industri dalam negeri ataupun global. Data pusat sumber daya geologi menyebutkan bahwa cadangan mineral LTJ saat ini di Indonesia diperkirakan sekitar 200.000 ton. Endapan LTJ yang berasosiasi dengan batuan granitik dijumpai pada jalur timah Indonesia, salah satunya Bangka Belitung. Mineral tanah jarang (monasit, xenotime dan zircon) diasosiasikan dengan deposit alluvial timah, uranium dan emas. Di kepulauan Bangka Belitung mineral tanah jarang ditemukan sebagai mineral ikutan dari proses penambangan dan ekstraksi mineral timah. Penelitian ini dilakukan untuk melihat sebaran mineral ikutan timah jarang menggunakan metode self potential dan menganalisis indikasi keterdapatan mineral logam tanah jarang menggunakan metode XRF. Metode Self potential dilakukan dengan menerapkan desain akuisisi fixed based. Pengambilan sampel uji XRF dilakukan secara acak yang tersebar di beberapa titik di sepanjang area penelitian. Hasil penelitian menunjukkan bahwa Sebaran mineral di daerah Danau Ampar tidak tersebarsecara merata. Mineral Quartz Vein dan Pegmatite (+10 hingga + 70 mV) sebagai mineral pembawa bijih timah mendominasi bagian Timur ke arah Baratlaut dan Barat hingga Baratlaut. Berdasarkan metode XRF terdapat indikasi keterdapatan elemen unsur tanah jarang Y, Eu dan Nd dengan kemungkinan mineral LTJ berupa Monazite dan Xenotime.

Pelatihan Pemanfaatan Limbah Plastik Menjadi Berbagai Kreasi Daur Ulang Bagi Masyarakat Desa Penyak Yuant Tiandho; Herman Aldila; Yekti Widyaningrum; Tri Kusmita; Anisa Indriawati; Widodo Budi Kurniawan; Fitri Afriani
Journal of Appropriate Technology for Community Services Vol. 2 No. 2 (2021)
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/jattec.vol2.iss2.art2

As an archipelago, handling plastic waste in the Province of Bangka Belitung Islands is an aspect that needs to be taken seriously. Apart from being focused on developing tourist areas, plastic waste will easily be carried to the sea and prone to be degraded into microplastics, often consumed by marine animals. This community service activity focuses on Penyak Village, Kec. Koba, Kab. Central Bangka, Bangka Belitung Islands. To solve the plastic problem in that location, the community service team conducted training for the community, especially for Pendidikan Kesejahteraan Keluarga (PKK) members, related to processing plastic waste into various recycled creations such as bags, pencil cases, and different kinds of souvenirs. The training program is carried out by providing materials and direct training to increase the understanding and skills. To broaden people's insights, the team conducted training with the Ecoplantstic start-up, which focuses on developing waste-based products. Through the evaluation, it is known that the training provided can improve the knowledge and skills of the community in processing plastic waste into various recycled creations, and several participants plan to develop the skills acquired for entrepreneurial purposes.

Synthesis of Rare Earth Metal Oxides Based on Monasite Sand with pH Variations Anisa Indriawati; Herman Aldila; Verry Andre Fabiani
Stannum : Jurnal Sains dan Terapan Kimia Vol 2 No 2 (2020): Oktober 2020
Publisher : Department of Chemistry - Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jstk.v2i2.1953

In the island of Bangka Belitung, the presence of monazite is quite abundant, monazite minerals contain rare earth metals. Rare Earth Metals are groups of elements that have similar properties, for example neodymium, cerium, lanthanum, and others. Rare earth metal applications are very potential in various fields. In this research, the synthesis of rare earth metals by sol gel method at pH variations of 5.5, 6.5 and 7.5 was carried out. In this case, only changes in the levels of P2O5, La2O3, CeO2, and Nd2O3 compounds were observed. The results showed an increase in levels of rare earth metals. This is indicated by the increase in La2O3 levels by 4,421% from the initial level at pH 7.5 CeO2 which has increased levels by 7,166% at pH 7.5, and Nd2O3 which has increased levels of 5.116% at pH 6.5. On the other hand, of P2O5 has decreased significantly (22.037%) Keyword: Monasite, Rare Earth, Sol Gel, pH

Co-Authors Ahmad Reza Setiawan Amri Tampubolon Awwab Hafizh Azrul Fahmi Desy Yuliana Dalimunthe Devito Wirasto Simanjuntak Dewi Marina Deza Pahlevi Antasari Dini Wulansari Dwi Roblia Agustika E.P.S.B Taman Tono Edi Suharyadi Endang Setyawati Hisyam Eri Gusnia Eri Gusnia Erman Taer Fajar Indah Puspita Sari Ferra Fahraini Firza Roehafi Fitri Afriani Flourenchia Charolline Latupapua Galih Setyawan Githa Nurvilia Afni Herman Aldila Irvani Irvani Julia Ambarwati Junaidi Junaidi Layal, Kamalia Monika P Handayani Muhammad Prayuda Muhammad Sahroni Permono Adi Putro Putri Hardianti Reza Firdaus Rifqi Almusawi Rafsanjani Rika Favoria Gusa Rolan Rolan Salmi Salmi Siska Oktaviani Siska Oktaviyani Taman Tono Tri Kusmita Verry Andre Fabiani Widodo B. Kurniawan Widodo Budi Kurniawan Yekti Widyaningrum Yekti Widyaningrum Yekti Widyaningrum Yuant Tiandho Yusron Yusron

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