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All Journal Jurnal Sains Materi Indonesia JURNAL FISIKA Jurnal Matematika & Sains JURNAL ISTEK ALHAZEN Gravity : Jurnal Ilmiah Penelitian dan Pembelajaran Fisika Scientiae Educatia: Jurnal Pendidikan Sains Jurnal Analisa Jurnal Pendidikan Fisika dan Keilmuan (JPFK) Time in Physics: Journal for Theoretical, Instrumentation, Material-Molecular, and Education Physics Scientiae Educatia: Jurnal Pendidikan Sains
Hasniah Aliah
Department Of Physics, Faculty Of Science And Technology, UIN Sunan Gunung Djati Bandung
Astronomy Computer Science & IT Earth & Planetary Sciences Education Materials Science & Nanotechnology Mathematics Physics

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Simulasi Produksi Neutron pada LINAC Radioterapi menggunakan metode Monte Carlo FLUKA-FLAIR Ramdani, Ridwan; Sutrisna, Irma Wati; Syaja'ah, Khoerun Nisa; Aliah, Hasniah
Gravity : Jurnal Ilmiah Penelitian dan Pembelajaran Fisika Vol 9, No 1 (2023)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/gravity.v9i1.18979

Abstract

The use of high-energy photon beams in radiotherapy aims to increase the effectiveness of the radiation beam so that it can reach tumors that are deeper than the surface of the skin. However, linac aircraft operated above 8 MV can cause photonuclear interactions. Neutrons, which are highly avoided in medical physics, can be generated from the interaction of high-energy photons with materials with high atomic numbers (Z) in linac heads. The study focused on simulating the production of linac 10 MV aircraft contaminant neutrons using Fluka-Flair software based on the Monte Carlo method to find out where the contaminant neutrons come from and their dose contribution to the water phantom. The simulated linac aircraft is a linac head consisting of target components, primary collimator, Flattening filter, ion chamber, Secondary Collimator, and Phantom. The simulation results show that neutrons are generated at the target component, primary collimator, Flattening filter, ion chamber, secondary collimator, and water phantom. Tungsten is the target material with the most excellent 55,08% neutron fluence due to its highest atomic number, Primary Collimator 23,45%, Flattening Filter 10,67%, Ion Chamber 7,58%, Secondary Collimator 3,07% and Phantom 0,15 %.
Implementation of Adaptive Neural Fuzzy Inference Systems (Anfis) For Speech Recognition Applications In Smart Home Control Permana, Roni; Sanjaya, W S Mada; Aliah, Hasniah
TIME in Physics Vol. 2 No. 2 (2024): September
Publisher : Universitas Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/timeinphys.2024.v2i2p77-84

Abstract

Signal Processing is signal processing that is related to the presentation, transformation, and manipulation of signal content and information. Digital Signal Processing is signal processing that is related to the presentation, transformation, and manipulation of signal content and information in digital form. The speech control system is very efficient. Speech signals are signals that change over time at a relatively slow speed. If observed at short intervals (between 5 and 100 miles per second), the practical characteristics are constant, but if observed at longer intervals, the characteristics appear to change according to the sentences spoken. This study uses the signal pattern recognition method with the MFCC and ANFIS methods as learning. The performance results of the entire system obtained an accuracy value with 6 feature extractions in 2 respondents, namely 65% ​​-72.5% and the smarthome control system worked well.
Science Laboratory Activities: A Profile of the Implementation and Constraints of Junior High School Natural Science Teachers Adam Malik; Hasniah Aliah; Seni Susanti; Mujib Ubaidillah; Ramdani Wahyu Sururie
Scientiae Educatia: Jurnal Pendidikan Sains Vol. 9 No. 1 (2020): June 2020
Publisher : Tadris Biologi Fakultas Ilmu Tarbiyah dan Keguruan IAIN SYEKH NURJATI CIREBON

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24235/sc.educatia.v9i1.6517

Abstract

This study aims to describe the implementation and various obstacles of laboratory activities in junior high schools. The study employed the descriptive quantitative method. The subjects of the study were science teachers in 41 junior high schools representing 4 areas of the Natural Sciences Teachers' Consultative Assembly (MGMP IPA) in Jawa Barat Province. The instrument employed was a questionnaire. The technical analysis of the data was conducted by calculating the average percentage of each answer choice of each statement. This research reveals that 1) the students’ motivation for conducting laboratory activities is high; 2) the implementation of laboratory activities is conducted separately by employing theoretical classroom learning; 3) the source of guidance for laboratory activities is a model of cookbook laboratory; and 4) some obstacles in laboratory activities include insufficient laboratory spaces, less standardized and insufficient number of most equipment, the availability of manuals for laboratory activities, insufficient instructions to use laboratory equipment, and teachers’ difficulties in designing, implementing, and evaluating laboratory activities. It is concluded that in general teachers and students are very enthusiastic about conducting laboratory activities in science learning, but they still have several constraints, especially in the available infrastructures.
Co-Authors Adam Malik Albert Manggading Hutapea Andhy Setiawan Asti Sawitri Dani Gustaman Syarif Elis Sabilil Hidayah Euis Sustini Fiyka Priyahita Horasdia Saragih Ida Ayu Putu Sri Widnyani Masturi Masturi Mikrajuddin Abdullah Mujib Ubaidillah Neneng Sugianti Nurul Hidayah Eka Putri Pipih Nurhidayati Rahayu Kariadinata Ramdani Wahyu Sururie Ridwan Ramdani Rini Cahyandari Riva Lesta Ariany Roni Permana Ryan Nur Iman Sanjaya, W S Mada Sukirno Sukirno Susanti, Seni Sutrisna, Irma Wati Syaja'ah, Khoerun Nisa Tika Karlina Rachmawati Toto Winata Toto Winata Yuni Karlina