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All Journal POSITRON Jurnal Fisika Unand Jurnal Penelitian Pertanian Terapan Bunda Edu-Midwifery Journal (BEMJ) Ensiklopedia of Journal Jurnal Ilmu Fisika Borneo Nursing Journal (BNJ) INTEGRITAS : Jurnal Pengabdian BERNAS: Jurnal Pengabdian Kepada Masyarakat Jurnal Kebidanan Malakbi Jurnal Manajemen Pendidikan Dasar, Menengah dan Tinggi [JMP-DMT] Indonesian Journal of Physics (IJP) Indonesian Journal of Community Empowerment and Service Socio-political Communication and Policy Review
Dian Fitriyani
Universitas Andalas
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Computer Science & IT Decision Sciences, Operations Research & Management Dentistry 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 Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Neuroscience Nursing Physics Public Health Social Sciences Veterinary Other

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Core Reactivity Analysis during Fuel Draining Process in the Molten Salt Fast Reactor Puti Berkah Azurah; Dian Fitriyani; Indarta Kuncoro Aji
Jurnal Ilmu Fisika (JIF) Vol 14 No 1 (2022): March 2022
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jif.14.1.45-53.2022

Abstract

A study of the core criticality during the draining process of liquid fuel salt on Molten Salt Fast Reactor (MSFR) was done. Two accident scenario that causes the draining process were loss of freeze valve coolant and loss of secondary coolant. This study used basic design of the MSFR with the salt fuel compositions of LiF (77.5%) – ThF4 (19.985%) – 233UF4 (2.515%). The criticality calculation has been analyzed from the value of the effective multiplication factor obtained from Open MC (Monte Carlo base) calculation. The effective multiplication factor was calculated with a variation on the number of freeze valves open; 1, 8, and 16 valves. The calculation has resulted in the value of effective multiplication factor decreasing exponentially during the draining process. Results from this study could be used as basic for the future study of the accident condition in MSFR, since there are still many MSRs accident scenarios that still haven't been taken into account.
Design Study of Ship Based Nuclear Power Reactor (Core Geometry Optimization) Dian Fitriyani Fitriyani; Zaki Su'ud
Indonesian Journal of Physics Vol 16 No 4 (2005): Vol. 16 No. 4, October 2005
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (102.495 KB)

Abstract

Preliminary design study of ship based nuclear power reactor has been performed. The results of thermo hydraulics analysis is presented and the core geometry optimization is reported. The reactors are basically lead-bistmuth cooled fast reactor using nitride fuels to enhance neutronics and safety performance. Some design modification are performed for feasibility of operation under ship dynamics caused by external forces from the marine environment such as wind, waves and tidal current that impressing reactor core performance. The basic reactor characteristics is that the power level is 100-200 MWth and excess reactivity is about 1$. In this study, the steady state thermo hydraulic calculation was further performed to investigate the effect of core geometry on the design performance of the proposed ship based reactors under variation of ship oscillation about 0o– 40o. The calculation result show that balance (square) core is the convenient core geometry for the best thermo hydraulic performance optimization of design. The ship oscillations influence to balance core temperature distribution is small enough compared to low core, while pressure drop even also not as high as at tall core. The variations of total coolant flow-rate across the core are also estimated to investigate the natural circulation level and necessary pumping power for the proposed design.
Optimalisasi Pemanfaatan Media Online Phet Simulation Untuk Upaya Peningkatkan Pemahaman Konsep Fisika di SMA N 2 Harau Ramacos Fardela; Dedi Mardiansyah; Meqorry Yusfi; Elistia Liza Namigo; Afdal; Mutya Vonnisa; Muldarisnur; Harmadi; Imam Taufiq; Ahmad Fauzi Pohan; Astuti; Afdhal Muttaqin; Dian Fitriyani; Dwi Pujiastuti; Sri Handani; Dwi Puryanti; Trengginas Eka Putra Sutantyo; Zulfi; Feriska Handayani Irka; Alimin Mahyudin; Nini Firmawati; Dian Milvita; Sri Oktamuliani; Sri Rahayu Alfitri Usna; Rico Adrial
Indonesian Journal of Community Empowerment and Service (ICOMES) Vol. 2 No. 2: December 2022
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (561.748 KB) | DOI: 10.33369/icomes.v2i2.24459

Abstract

Fisika menganut metodologi ilmiah (sains) yang memuat tiga kegiatan terpadu dan membentuk daur (cycles) empirico-logico-verification yang pertama kali dirintis oleh I. Newton yaitu (1) pengamatan gejala-gejala alam (kegiatan empiris melalui fisika eksperimen), (2) Penalaran untuk menjelaskan hasil pengamatan tersebut dan ekstensinya sehingga mampu menghasilkan ramalan mengenai gejala baru (kegiatan berlogika melalui fisika teori) dan (3) pengujian mengenai kesesuaian ramalan tersebut dengan realitas alam (kegiatan verifikasi melalui fisika eksperimen). Keberadaan laboratorium di sekolah-sekolah menjadi kunci keberhasilan dalam memperkenalkan tiga kegiatan terpadu tersebut. Sekolah Menengah Atas Negeri (SMAN) 2 Harau, Kabupaten Lima Puluh Kota merupakan sekolah di bawah naungan Provinsi Sumatera Barat dengan jarak sekitar 138 km dari Jurusan Fisika FMIPA Universitas Andalas tepatnya berada di Kecamatan Harau. Dari informasi yang diperoleh masih terbatasnya sarana dan prasarana seperti jumlah peralatan praktikum. Berdasarkan hal tersebut, tim pengabdian Jurusan Fisika FMIPA Universitas Andalas akan melaksanakan rangkaian kegiatan pengabdian masyarakat di SMA N 2 Harau dengan pemanfaatan media online salah satunya Phet- Simulation. Hasil pengabdian menunjukkan 90 % siswa mengatakan setuju dan sangat setuju bahwa kegiatan seperti ini memberikan manfaat bagi pemahaman materi di bidang Fisika. Kegiatan seperti ini perlu dilakukan lebih banyak oleh Tim Pengabdian sehingga masyarakat merasakan keberadaan perguuruan tinggi yang ada didaerahnya. Kata kunci: PhET Colarado; Simulasi Fisika; dan Pengabdian Masyarakat
Analisis Pengaruh Kuat Arus dan Tegangan Terhadap Kualitas Citra Computed Tomography (CT) Scan Siemens Perspective di RSUP Dr. M. Djamil Padang Sri Herlinda; Dian Fitriyani; Marzuki Marzuki
POSITRON Vol 9, No 1 (2019): May Edition
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam, Univetsitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (974.561 KB) | DOI: 10.26418/positron.v9i1.31138

Abstract

Telah dilakukan analisis pengaruh kuat arus dan tegangan terhadap kualitas citra Computed Tomography (CT) Scan menggunakan phantom Siemens berbentuk silinder dengan metode pengambilan citra secara pemindaian axial.  Variasi tegangan tabung yang digunakan adalah 80 kV, 110 kV dan 130 kV, untuk kuat arus 240 mA, 260 mA, 280 mA, 300 mA, 320 mA dan 340 mA dengan waktu pemindaian 1 detik.  Setiap metode pemindaian untuk satu tegangan dilakukan dengan enam kali penyinaran.  Penyinaran dilakukan pada dua keadaan yaitu pada tegangan tetap, nilai kuat arus yang divariasikan dan untuk variasi tegangan dilakukan pada nilai kuat arus yang tetap, dengan menggunakan ketebalan irisan 8 mm dengan kernel J30s.  Hasil penelitian menunjukkan bahwa kenaikan tegangan tabung diikuti oleh dan penurunan nilai noise dan kenaikan nilai uniformity . Selain itu, variasi penambahan arus tabung akan menurunkan nilai  noise dan menurunkan nilai uniformity.  Nilai noise yang paling optimal berada pada tegangan 110 kVp dan 130 kVp, sedangkan nilai uniformity yang paling optimal berada pada tegangan 80 kVp dengan kuat arus 300 mAs dan 340 mAs.
VERIFIKASI DOSIMETRI ANISOTROPIC ANALYTICAL ALGORITHM (AAA) PADA TREATMENT PLANNING SYSTEM (TPS) ECLIPSE BERDASARKAN VARIASI MULTILEAF COLLIMATOR Fadillah Ahmad; Afdhal Muttaqin; Dian Fitriyani; Ridwan Ridwan
Jurnal Ilmu Fisika Vol 15 No 1 (2023): March 2023
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jif.15.1.48-55.2023

Abstract

Dosimetry verification of anisotropic analytical (AAA) algorithms based on variations of the multileaf collimator has been investigated using the Eclipse Treatment Planning System. This study used a 0.6cc ionization chamber farmer detector and Linac Clinical CX variant equipped with TPS Eclipse with AAA. This study used 6 MV energy and 2 Gy dose. The multileaf collimator was varied into six groups with the size (A, B, C, D, E, F) of the irradiation field used 20 cm x 20 cm. The measurement results were a dose deviation value or a dose ratio presentation in each irradiation area. The dose deviation of the multileaf collimator variation was A 0.86% for each group. Group B had 6.8%, Group C had -0.43%, Group D had 0.73%, Group E had 1.11%, and Group F had 0.84%. The mean dose deviation value for all multileaf collimator forms was 1.67%, where this value is within the tolerance value recommended by ICRU, namely 3-5%. The p-value in the Analysis of variance (ANOVA) for the entire group was 0.00. This data shows that there is no effect of variation in the multileaf collimator on the dose given.
Analisis Sensitivitas Dalam Deteksi Homogenitas ROI Pada Pengukuran Kualitas Citra Pesawat CT-Scan Merly Dwipurnama Sari; Dian Fitriyani; Heru Prasetio
Jurnal Fisika Unand Vol 12 No 1 (2023)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1425.744 KB) | DOI: 10.25077/jfu.12.1.158-163.2023

Abstract

Telah dilakukan penelitian tentang analisis sensitivitas dalam deteksi homogenitas ROI pada pengukuran kualitas citra pesawat CT-Scan. Penelitian ini bertujuan untuk memperoleh verifikasi metode baru untuk mengevaluasi homogenitas citra CT-Scan dengan cara mencari nilai CT-Number pada 12 titik (posisi arah jam 1 sampai jam 12) dengan analisis 6 area ROI berupa grafik atau histogram serta membandingkan hasilnya dengan metode pada umumnya yaitu pada hasil citra pesawat CT-Scan di area ROI pada posisi arah jam 12, jam 3, jam 6, jam 9 dan pusat fantom sehingga dapat mengetahui tingkat sensitivitas kedua metode tersebut dalam mendeteksi homogenitasnya. Pengambilan data yaitu data sekunder dari hasil citra fantom air pada CT-Scan sebanyak 30 citra yang diperoleh dari Pusat Riset Teknologi Keselamatan, Metrologi dan Mutu Nuklir-Organisasi Riset Tenaga Nuklir-Badan Riset dan Inovasi Nasional (PRTKMMN-ORTN-BRIN). Hasil pengukuran menunjukkan bahwa nilai keseragaman noise dari 30 data sampel terdapat 21 data sampel memenuhi batas toleransi yaitu ≤ 2 HU. Hasil ini memenuhi standar perka BAPETEN No. 2 Tahun 2018 tentang uji kesesuaian pesawat sinar-X radiologi diagnostik dan intervensional. Perbandingan sensitivitas dalam mendeteksi homogenitas ROI pada pengukuran kualitas citra pesawat CT-Scan menunjukkan bahwa metode ROI pada penelitian ini mampu menghasilkan sensitivitas yang lebih baik dalam mendeteksi homogenitasnya.
PENGOLAHAN CITRA DIGITAL UNTUK PENENTUAN KECEPATAN ALIRAN DARAH DI JANTUNG BERDASARKAN EFEK DOPPLER Eif Sparzinanda; Sri Oktamuliani; Dian Fitriyani; Imam Taufiq
Jurnal Ilmu Fisika Vol 15 No 2 (2023): September 2023
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jif.15.2.116-122.2023

Abstract

A research study was conducted to estimate and visualize 2D vectors of blood flow in the heart using image processing algorithms to determine Doppler velocity at each point. The study used secondary data from ten patients who provided informed consent, encompassing healthy and unhealthy hearts. ECD image data were collected using a Philips epiq 7C machine in DICOM format. The image processing tasks, including area segmentation, flow velocity analysis, and area smoothing, were carried out using MATLAB R2016b software. These processes aimed to eliminate noise and other disturbances, enhancing the accuracy of blood flow velocity estimation in the heart. The study's findings included estimations and 2D vector visualizations representing the average blood flow velocity at each point within the heart. These achievements were made possible using image processing techniques to correct the acquired images, ensuring precise measurement of blood flow speed. Among the collected data, one patient exhibited indications of a healthy heart, with an average blood flow velocity of 40.2513 cm/s, a maximum speed of 68.5807 cm/s, and a minimum speed of 33.6971 cm/s. Deviations from the normal range of blood flow speeds were considered as potential abnormalities in heart health.
Pengayaan Materi Pemanasan Global di SMA Negeri 2 Gunung Talang Kabupaten Solok Mutya Vonnisa; Dedi Mardiansyah; Marzuki Marzuki; Ramacos Fardela; Feriska Handayani Irka; Harmadi Harmadi; Arif Budiman; Dwi Puryanti; Dwi Pujiastuti; Sri Handani; Rahmat Rasyid; Imam Taufik; Astuti Astuti; Meqorry Yusfi; Mohammad Ali Shafii; Elvaswer Elvaswer; Mora Mora; Dahyunir Dahlan; Dian Fitriyani; Afdhal Muttaqin
BERNAS: Jurnal Pengabdian Kepada Masyarakat Vol. 5 No. 3 (2024)
Publisher : Universitas Majalengka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31949/jb.v5i3.9386

Abstract

Materi Pemanasan Global merupakan salah satu bagian dari Mata Pelajaran Fisika di SMA. Materi Pemanasan Global ini merupakan ilmu yang penting dan harus di kuasai oleh siswa-siswi jurusan IPA. Kegiatan pengabdian adalah memberikan pengayaan materi pemanasan global pada siswa-siswi kelas X SMA N 2 Gunung Talang. Tujuan kegiatan ini memberikan tambahan ilmu terkait dengan materi pemanasan global dan efek rumah kaca. Metode yang dilakukan adalah persiapan pelaksanaan, pelaksanaan kegiatan, monitoring evaluasi, pembuatan laporan akhir dan pembuatan luaran pengabdian. Kegiatan ini merupakan bagian dari pengabdian Masyarakat mengenai pengayaan mata Pelajaran Fisika di SMA N 2 Gunung Talang yang dilaksanakan mulai dari bulan Oktober-Desember 2023. Dari hasil kegiatan ini dapat dilihat adanya peningkatan persentase penguasaan materi dari rata-rata 33,8% menjadi 68,4%.
IMPLEMENTASI PROGRAM POSBINDU PENYAKIT TIDAK MENULAR Fitriyani, Dian; Dewi, Siti Utami; Wirawan, Susilo; Kartadarma, Supriyatni; Purnomo, Heru
Ensiklopedia of Journal Vol 6, No 3 (2024): Vol. 6 No. 3 Edisi 2 April 2024
Publisher : Lembaga Penelitian dan Penerbitan Hasil Penelitian Ensiklopedia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33559/eoj.v6i3.2312

Abstract

Deaths from non-communicable diseases are expected to continue to increase worldwide. More than two thirds (70%) of the global population will die from non-communicable diseases such as cancer, heart disease, stroke and diabetes. In total, it is predicted that by 2030 there will be 52 million deaths per year due to non-communicable diseases, an increase of 9 million from 38 million at present. Lubuk Ambacang is one of the community health center in Kuantan Singingi Regency which in the last 3 years has increased hypertension to 59.2%, and diabetes mellitus to 21.5%. According to the Indonesian Ministry of Health in the Technical Guidelines for the Implementation of Non-Communicable Diseases, one of them is the implementation of PTM Posbindu. The purpose of the study was to find out the implementation of the Posbindu Program for Non-Communicable Diseases in the Work Area of the Lubuk Ambacang community health center, Kuantan Singingi Regency in 2021. The study used qualitative analytical methods conducted the Lubuk Ambacang community health center, Kuantan Singingi Regency used 7 informants. The results showed that in general the implementation of Posbindu PTM in Lubuk Ambacang community health center has been running, but there are several obstacles such as Human Resources not in accordance with SOPs or PTM implementation guidelines according to the Indonesian Ministry of Health, Limited availability of funds, availability of infrastructure that does not meet the 100% requirements and community support that has not been maximized. It is suggested to Lubuk Ambacang community health center to increase the type of PTM Posbindu from the basic PTM Posbindu to the main PTM Posbindu so that people are more enthusiastic about utilizing the PTM Posbindu.Keywords: Implementation, Posbindu, Hypertension, Human Resources
Faktor Ekonomi Memengaruhi Pernikahan Remaja Perempuan Fitriyani, Dian
Jurnal Kebidanan Malakbi Vol 2 No 2 (2021): Agustus 2021
Publisher : Jurusan Kebidanan Poltekkes Kemenkes Mamuju

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33490/b.v2i2.371

Abstract

World Health Organization (WHO) in collaboration with UNICEF which aims to improve the health of mothers and newborns in 25 countries that contributed the highest maternal mortality rate, one of them is in Indonesia. Adolescent who become pregnant will increase the health risks for her and baby. The maternal mortality reach approximately 70,000 deaths each year and maternal mortality is closely related to pregnancy and childbirth by adolescents aged 15 – 19 years in the worldwide. Objective of the research is to analyze the factors that influence adolescent girls’ marriage in Indramayu regency. This study uses qualitative method, the paradigm fenomenology. The subjects taken by purposive sampling technique. The informants is adolescent women who married about aged <20 years, her husband, and her family as much as 21 people. The results shows that family economic factors affecting marriage adolescent girls in the Indramayu regency that is caused economic status, the attitude of materialistic. Limitations of the study, there are several girls who live outside the city because they took the husband or for work outside the city, so it's likely there are many factors that have not been revealed. Economic factors affecting marriage adolescent girls in Indramayu regency, is causes by economic status and the attitude of materialistic. It is necessary to consider the policy of the Marriage Law with the age of >20 years and the prohibition of marriages <20 years so that young girls avoid negative impacts, both physical and psychological.
Co-Authors Abu Khalid Rivai Abu Khalid Rivai Abu Khalid Rivai Adrial, Rico Afdal Afdal Afdhal Muttaqin Ahmad Fauzi Pohan Ainul Mardiyah Alimin Mahyudin Amalia Rosyidah Arif Budiman Astuti Astuti - Astuti Astuti Bery, Winda Surya Dahyunir Dahlan Damayanti, Elok Dedi Mardiansyah Desi Armanita Dewi Erowati, Dewi Dian Milvita Dina Cinantya N Dora Andris Dwi Pujiastuti Dwi Puryanti Eif Sparzinanda Elistia Liza Namigo, Elistia Elvaswer Elvaswer Enny Zarvianti Enny Zavianti Eza Pelita Zebua, Fajri Fadillah Ahmad Feriska Handayani Irka, Feriska Handayani Galih Putra Drantou Munggaran Hajjatun Khairah Hajjatun Khairah, Hajjatun Handayani Irka, Feriska Harmadi Harmadi Hartini, Teti Heru Prasetio Heru Purnomo Imam Taufik Imam Taufiq Indarta Kuncoro Aji Jaenudin Kartahadimaja Kartadarma, Supriyatni Mardiyanto Mardiyanto Mardiyanto Mardiyanto Marzuki Marzuki Meiby Astri Lestari Meqorry Yusfi Merly Dwipurnama Sari Mohammad Ali Shafii Mora Mora Muharsyah, Robi Muldarisnur, Mulda Muthia Annisa Putri Mutya Vonnisa Nella Permata Sari Nevi Haryani Nini Firmawati Nur Hidayat Sardini Nurkholilah Nurkholilah Nurman Abdul Hakim Puspita, Riri Diah Puti Berkah Azurah Puti Berkah Azurah Raflis, Helen Rahmat Rasyid Ramacos Fardela Refi Juita Rena, Suci Ramda Reni Asnita Ridwan Ridwan Riska Riska Sidik Permana Siti Utami Dewi, Siti Utami Sofhia Ulga Solly Aryza Sri Handani Sri Herlinda Sri Mulyadi Sri Mulyadi Sri Oktamuliani Sulistioso G.S Sulistioso G.S, Sulistioso Sulistioso Giat Sukaryo Sulistioso Giat Sukaryo, Sulistioso Giat Suryanti, Krisna Susilo Wirawan Topan Setiadipura Topan Setiadipura Trengginas Eka Putra Sutantyo Wanda Feri Rezki Widya Sardi Winda Surya Bery Zaki Suud Zarvianti, Enny Zavianti, Enny Zulfi