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All Journal Jurnal Penelitian Fisika dan Aplikasinya (JPFA) JURNAL ILMIAH PENDIDIKAN FISIKA AL BIRUNI E-Dimas: Jurnal Pengabdian kepada Masyarakat Jurnal SOLMA Natural: Jurnal Ilmiah Pendidikan IPA COMPTON: Jurnal Ilmiah Pendidikan Fisika Navigation Physics : Journal of Physics Education
Ayu Fitri Amalia, Ayu Fitri
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Astronomy Earth & Planetary Sciences Education Electrical & Electronics Engineering Materials Science & Nanotechnology Physics Social Sciences Other

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THE SEGMENTATION OF NEUTRON DIGITAL RADIOGRAPHY IMAGE THROUGH THE EDGE DETECTION METHOD Amalia, Ayu Fitri; Budhi, Widodo
Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Vol 10, No 1 (2020): Articles in Press
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpfa.v10n1.p%p

Abstract

The digital image processing is one way to manipulate one or more digital images. Image segmentation has an essential role in the field of image analysis. The aim of this study was to develop an application to perform digital image processing of neutron digital radiographic images, hoping to improve the image quality of the digital images produced. The quality of edge detection could be used for the introduction of neutron digital radiographic image patterns through artificial intelligence. Interaction of neutrons with the matter mainly by nuclear reaction, elastic and inelastic scattering. A neutron can quickly enter into a nucleus of an atom and cause a reaction. It is because a neutron has no charge. Neutrons can be used for digital imaging due to high-resolution information from deep layers of the material. The attenuated neutron beam in neutron radiography are passing through the investigated object. The object in a uniform neutron beam is irradiated to obtain an image neutron. The technique used in segmenting the neutron radiography in this study was a digital technique using a camera with a charge-coupled device (CCD), which was deemed more efficient technique compared to the conventional one. Through this technique, images could be displayed directly on the monitor without going through the film washing process. Edge detection methods were implemented in the algorithm program. It was the first step to complement the image information where edges characterize object boundaries. It is useful for the process of segmenting and identifying objects in neutron digital radiography images. The edge detection method used in this study was Sobel, Prewitt, Canny, and Laplacian of Gaussian. According to the results of the image that have been tested for edge detection, the best image was carried out by the Canny operator because the method is more explicit. The obtained edges were more connected than the other methods which are still broken. The Canny provided edge gradient orientation which resulted in a proper localization.
THE SEGMENTATION OF NEUTRON DIGITAL RADIOGRAPHY IMAGE THROUGH THE EDGE DETECTION METHOD Amalia, Ayu Fitri; Budhi, Widodo
Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Vol 10, No 1 (2020): Articles in Press
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpfa.v10n1.p%p

Abstract

The digital image processing is one way to manipulate one or more digital images. Image segmentation has an essential role in the field of image analysis. The aim of this study was to develop an application to perform digital image processing of neutron digital radiographic images, hoping to improve the image quality of the digital images produced. The quality of edge detection could be used for the introduction of neutron digital radiographic image patterns through artificial intelligence. Interaction of neutrons with the matter mainly by nuclear reaction, elastic and inelastic scattering. A neutron can quickly enter into a nucleus of an atom and cause a reaction. It is because a neutron has no charge. Neutrons can be used for digital imaging due to high-resolution information from deep layers of the material. The attenuated neutron beam in neutron radiography are passing through the investigated object. The object in a uniform neutron beam is irradiated to obtain an image neutron. The technique used in segmenting the neutron radiography in this study was a digital technique using a camera with a charge-coupled device (CCD), which was deemed more efficient technique compared to the conventional one. Through this technique, images could be displayed directly on the monitor without going through the film washing process. Edge detection methods were implemented in the algorithm program. It was the first step to complement the image information where edges characterize object boundaries. It is useful for the process of segmenting and identifying objects in neutron digital radiography images. The edge detection method used in this study was Sobel, Prewitt, Canny, and Laplacian of Gaussian. According to the results of the image that have been tested for edge detection, the best image was carried out by the Canny operator because the method is more explicit. The obtained edges were more connected than the other methods which are still broken. The Canny provided edge gradient orientation which resulted in a proper localization.
The Segmentation of Neutron Digital Radiography Image through the Edge Detection Method Amalia, Ayu Fitri; Budhi, Widodo
Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Vol 10, No 1 (2020)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpfa.v10n1.p11-21

Abstract

The digital image processing is one way to manipulate one or more digital images. Image segmentation has an essential role in the field of image analysis. The aim of this study was to develop an application to perform digital image processing of neutron digital radiographic images, hoping to improve the image quality of the digital images produced. The quality of edge detection could be used for the introduction of neutron digital radiographic image patterns through artificial intelligence. Interaction of neutrons with the matter mainly by nuclear reaction, elastic, and inelastic scattering. A neutron can quickly enter into a nucleus of an atom and cause a reaction. It is because a neutron has no charge. Neutrons can be used for digital imaging due to high-resolution information from deep layers of the material. The attenuated neutron beam in neutron radiography are passing through the investigated object. The object in a uniform neutron beam is irradiated to obtain an image neutron. The technique used in segmenting the neutron radiography in this study was a digital technique using a camera with a charge-coupled device (CCD), which was deemed more efficient technique compared to the conventional one. Through this technique, images could be displayed directly on the monitor without going through the film washing process. Edge detection methods were implemented in the algorithm program. It was the first step to complement the image information where edges characterize object boundaries. It is useful for the process of segmenting and identifying objects in neutron digital radiography images. The edge detection methods used in this study were Sobel, Prewitt, Canny, and Laplacian of Gaussian. According to the results of the image that have been tested for edge detection, the best image was carried out by the Canny operator because the method is more explicit. The obtained edges were more connected than the other methods which are still broken. The Canny technique provided edge gradient orientation which resulted in a proper localization.
Analisis Kesulitan Mahasiswa Prodi Teknik Industri dalam Memahami Konsep Kinematika Budhi, Widodo; Amalia, Ayu Fitri; Purnama, Aditya Yoga
Navigation Physics : Journal of Physics Education Vol 6, No 1 (2024): Navigation Physics : Journal of Physics Education Vol. 6 No. 1 Tahun 2024
Publisher : UNIVERSITAS INDRAPRASTA PGRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30998/npjpe.v6i1.2744

Abstract

This study aims to identify factors of student difficulties and analyze student difficulties in understanding the concept of kinematics in working on odd semester midterm exam questions in the 2023/2024 academic year Basic Physics 1 subject kinematics. This research was conducted at the Industrial Engineering Study Program, Faculty of Engineering, Sarjanawiyata Tamansiswa University in the odd semester of the 2023/2024 academic year. This research is a descriptive research. The research population was all Industrial Engineering students who took Basic Physics 1 course totaling 78 students. This research is a descriptive type of research. The research population is all Industrial Engineering students who take Basic Physics 1 courses totaling 78 students. The results showed that students' difficulties in understanding the concept of kinematics were categorized into 3 (three) factors, namely concepts (84%), procedures (47%), and mathematical calculations (67%). Students' ability to understand the concept of kinematics still tends to be low, this is indicated by the average score obtained by students only reaching 28.55 with a standard deviation of 10.53.
Mathematical Model Simulation of Non-Linear Equations using MATLAB: Specific Volume of Gas with Van der Waals Equation Amalia, Ayu Fitri; Budhi, Widodo; Melati, Asih; Prabowo, Urip Nurwijayanto
Jurnal Ilmiah Pendidikan Fisika Al-Biruni Vol 11 No 2 (2022): Jurnal Ilmiah Pendidikan Fisika Al-Biruni
Publisher : Universitas Islam Negeri Raden Intan Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/jipfalbiruni.v11i2.12546

Abstract

Computational physics is concerned with the application of numerical methods in solving physical problems. The van der Waals gas model is one of the most common non-linear models. This study simulated a mathematical model of a non-linear equation using MatLab for the case of the specific volume of gas in the equation of the state of van der Waals. This study aimed to determine the molar volume and compressibility factor, as well as describe the relationship between the compressibility factor and the reduced pressure. The method of the study is experimental. The independent variables are the reduced pressure and temperature values. The dependent variable is the determination of the value of the molar volume (V) and the compressibility factor (Z). The control variable, in the form of a function used in solving this case, is based on van der Waals equation with the gas used is ammonia. The fzero command can be used to solve f(x)=0 with a single variable. This program that has been running successfully can show various predictions in the form of reduction pressure, thus obtaining the values of the molar volume and compressibility factor using the ideal gas equation. There is a deviation in ammonia gas, the Z>1 at high reduction pressures and Z<1 at medium pressures. This study can provide contributions and benefits in the form of material enrichment of thermodynamics to understand how real gases behave. The ideal gas equation can be modified into the van der Waals equation.
Optimisation of creativity students on finite element analysis and simulation learning using industrial product Setiadi, Bayu Rahmat; Amalia, Ayu Fitri
COMPTON: Jurnal Ilmiah Pendidikan Fisika Vol 12 No 1 (2025): Compton: Jurnal Ilmiah Pendidikan Fisika
Publisher : Prodi Pendidikan Fisika Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/cjipf.v12i1.20257

Abstract

The challenge of industrial product competitiveness often lies in product design, where industries face obstacles in producing prototypes suitable for commercialization. Collaboration between universities and small and medium enterprises offers opportunities to develop diversification and product capacity through learning. This research engages students in solving industrial problems creatively using Finite Element Analysis (FEA) and simulation for product development. Conducted at the Product Design Laboratory, Department of Mechanical Engineering Education, Universitas Negeri Yogyakarta, the study involved an experimental class of 15 students and a control class of 18 students. A pretest-posttest control group design was applied: the experimental class used real industrial products in FEA and simulation learning, while the control class used textbooks or job sheets. Research stages included identifying product problems, redesigning, conducting FEA analysis and simulation, comparing old and new product results, and concluding recommendations. The study emphasizes student creativity in addressing product design challenges, highlighting how creative processes can produce measurable impacts on product evaluation. Findings reveal significant improvements in creativity when students learn through real industrial applications. This research contributes to strengthening university–industry partnerships, ensuring sustainable and impactful learning to enhance industrial product quality
Pengembangan LKPD IPA Berbasis Value Clarification Untuk Meningkatkan Karakter Peserta Didik Krisnawati, Hastyarini; Wijayanti, Astuti; Amalia, Ayu Fitri
N A T U R A L: Jurnal Ilmiah Pendidikan IPA Vol 8 No 1 (2021)
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/natural.v8i1.8654

Abstract

This study aims for knowing process developing students worksheet based on value clarification which is decent used to improve character of Junior High School grade VIII students. The study type was research and development (R&D) of 4D (Define, Design, Develop dan Disseminate) model which is restricted untill develop stage. The techniques of collecting data used observatins, questionnaires, and interviews. Quality value data obtained then analyzed used qualitative and quantitative descriptive analysis based on ideal assesment. The students worksheet meet the criteria aspects of suitability of the goal, content eligibility, completeness of the material, presentation of material, student worksheet based on value clarification components, suitability of activities, clarity of instructions, language and sentence eligibility, text clarity and layout quality. Based on expert judgment is known that worksheet student which was developed had very good quality with ideal percentage by media expert 91%, percentage assesment by material epert 87,78%, percentage assesment by peer reviewer 95,16%, percentage assesment by natural science teacher 83,03% and percentage respon by students 86,48%. Based on that assesment, student worksheet based on value clarification for Junior High School grade VIII students is suitable for use in natural science learning.
PENGEMBANGAN E-LKPD (ELEKTRONIK LEMBAR KERJA PESERTA DIDIK) FISIKA DENGAN 3D PAGEFLIP BERBASIS PROBLEM BASED LEARNING PADA POKOK BAHASAN KESETIMBANGAN DAN DINAMIKA ROTASI Hidayah, Atika Nur; Winingsih, Puji Hariati; Amalia, Ayu Fitri
COMPTON: Jurnal Ilmiah Pendidikan Fisika Vol 7 No 2 (2020): Compton: Jurnal Ilmiah Pendidikan Fisika
Publisher : Prodi Pendidikan Fisika Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/cjipf.v7i2.9091

Abstract

Dampak pandemic Covid-19 terhadap Pendidikan menjadikan pembelajaran harus dilakukan secara daring, namun bahan ajar yang digunakan masih banyak berupa bahan ajar cetak. Penelitian ini bertujuan untuk mengembangkan dan menguji kelayakan produk.  Penelitian ini menggunakan metode Research and Development dengan menggunaka delapan tahapan. Uji kelayakan e-LKPD menggunakan angket skala likert dengan divalidasi oleh tiga validator. Uji keterbacaan e-LKPD dilaksanakan di SMA Negeri 1 Prambanan dan diperoleh produk berupa e-LKPD (Elektronik Lembar Kerja Peserta Didik) Fisika dengan 3D Pageflip Berbasis Problem Based Learning pada Pokok Bahasan Kesetimbangan dan Dinamika Rotasi. Kelayakan produk ini menurut validator adalah Sangat Baik (91%) dan Baik (9%). Sehingga layak untuk digunakan di sekolah sebagai salah satu bahan ajar bagi peserta didik.
Pengembangan e-modul fisika materi gelombang dan bunyi berbasis local wisdom alat musik gamelan pada mata kuliah fisika dasar Erlangga, Sony Yunior; Susanti, Susanti; Amalia, Ayu Fitri
COMPTON: Jurnal Ilmiah Pendidikan Fisika Vol 9 No 2 (2022): Compton: Jurnal Ilmiah Pendidikan Fisika
Publisher : Prodi Pendidikan Fisika Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/cjipf.v9i2.14154

Abstract

Penelitian ini bertujuan untuk menghasilkan produk Modul Fisika Berdasarkan Kearifan Lokal Gamelan tentang Gelombang dan Bunyi. Produk ini akan diimplementasikan ke kelas setelah melalui penilaian ahli. Modul fisika Berbasis Kearifan Lokal Gamelan merupakan produk yang terintegrasi dengan kearifan lokal Gamelan. Produk ini dirancang untuk menggabungkan kearifan lokal dengan konsep fisika, sehingga siswa dapat memahami lingkungan sekitar secara ilmiah. Dengan demikian, siswa dapat menerapkan konsep sains yang diterima di universitas dalam kehidupan sehari-hari. Pengembangan desain yang digunakan dalam penelitian ini adalah model pengembangan 4-D. Hasil validasi di review memperoleh skor V’Aiken 1 maka dapat dikatakan produk valid. Dapat disimpulkan bahwa modul yang dikembangkan memenuhi persyaratan kelayakan sebagai bahan ajar.
Pelatihan dan Penyegaran Auditor Audit Mutu Internal (AMI) di Universitas Sarjanawiyata Tamansiswa Yogyakarta Handoyono, Nurcholish Arifin; Prihatni, Yuli; Hadi, Samsul; Amalia, Ayu Fitri; Kusumawadani, Ratih
E-Dimas: Jurnal Pengabdian kepada Masyarakat Vol 15, No 2 (2024): E-DIMAS
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/e-dimas.v15i2.15968

Abstract

Dalam penyelenggaraan pendidikan tinggi harus memiliki mutu yang terstandar dalam peraturan yang berlaku. UST Yogyakarta telah memiliki akreditasi B dari BAN-PT serta 56,52% program studi di UST terakreditasi Unggul dan B. Melihat kondisi tersebut, masih jauh dari target untuk mencapai Unggul. Kemudian pada tahun 2021 di UST para pejabat struktural penjaminan mutu (SPMF/D dan GMP) telah mengalami habis masa jabatannya, sehingga di tahun 2021 UST mengangkat dan melantik para SPMF/D dan GMP dengan 80% merupakan orang baru. Agar pelaksaan SPMI dapat berjalan dengan baik maka para SPMF/D dan GMP yang baru perlu menyadari tupoksi mereka masing-masing. Upaya penguatan tupoksi dilakukan oleh LPM melalui kegiatan pelatihan dan penyegaran auditor Audit Mutu Internal) (AMI). Pelaksanaan kegiatan dilaksanakan di Ruang Sidang Lantai II, (Gedung Pusat UST Lantai 2) Jalan Batikan UH-3/1043 Tahunan, Umbulharjo, Yogyakarta 55167 pada hari Selasa, 30 Agustus 2022. Peserta dari kegiatan ini adalah para auditor non akademik, SPMF/D, dan GMP di lingkungan UST yang berjumlah 33 peserta. Metode pelaksanaan kegiatan ini dilakukan dengan menggunakan ceramah, tanya jawab, dan praktik. Metode ceramah dan tanya jawab dilakukan untuk menyampaikan materi tentang kebijakan SPMI, teori dan best practice AMI, sedangkan praktik digunakan untuk melakukan simulasi audit kecukupan dan kepatutan dengan auditee. Hasil kegiatan ini yaitu pada peserta telah mengalami peningkatan dalam kemampuan mengaudit yang ditunjukkan oleh peningkatan hasil dari pre test sebesar 73,39 menjadi 78,75 di post test. Sebagai hasil tidak lanjut dari kegiatan ini adalah melakukan AMI di lingkungan UST.
Co-Authors Aditya Yoga Purnama Asih Melati Astuti Wijayanti, Astuti Atika Nur Hidayah Bayu Rahmat Setiadi, Bayu Rahmat Budhi, Widodo Krida Singgih Kuncoro Krisnawati, Hastyarini Kusumawadani, Ratih Muhammad Irfan Nurcholish Arifin Handoyono, Nurcholish Arifin Puji Hariati Winingsih, Puji Hariati Samsul Hadi Sony Yunior Erlangga Sri Adi Widodo Sukiyanto, Sukiyanto Susanti Susanti Urip Nurwijayanto Prabowo, Urip Nurwijayanto Wiranata, Ferdinandus Edwin Yuli Prihatni