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All Journal Jurnal Sains Dasar Jurnal Penelitian Pendidikan IPA (JPPIPA) INDONESIAN JOURNAL OF APPLIED PHYSICS Jurnal Pengabdian Masyarakat MIPA dan Pendidikan MIPA ASEAN Journal on Science and Technology for Development Jurnal Ilmu Fisika dan Terapannya (JIFTA)

Yosi Aprian Sari

Unknown Affiliation

Author-ID : 435043

Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Materials Science & Nanotechnology Mathematics Physics

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A study of frustrated system in 2 dimensional triangular lattice antiferromagnet using the Ising model Noor Rika Safitri; Aini Rahmatun Ummi Fadlilah; Denny Darmawan; Yosi Aprian Sari
Jurnal Sains Dasar Vol 2, No 2 (2013): October 2013
Publisher : Faculty of Mathematics and Natural Science, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jsd.v2i2.3294

Abstract This research was aimed to simulate the ground state and magnetization of antiferromagnet under the influence of temperature and competing interaction. The effect of competing interaction to phase transition was also investigated. The competition occurred between the nearest neighbour interaction and the next nearest neighbour interaction in the triangular lattice. The simulation was done using the 2 dimensions Ising model with Monte Carlo method combined with Metropolis algorithm. The results showed that the ground state energy increased significantly at the critical temperature (Neel’s temperature). When the competing interaction increased, the ground state energy of the lowest temperature decreased. Based on the magnetization, due to the increase of the competing interactions, the phase transitionfrom antiferromagnet to paramagnet occurred at a higher Neel’s temperature. Key words: antiferromagnet, Ising model, competing interaction, Neel’s temperature

Pengaruh Konfigurasi Geometri Buffer Resonator Tipe-H terhadap Intensitas Bunyi R. Yosi Aprian Sari; Agung Bambang Setio Utomo; Mitrayana Mitrayana; Danang Lelono
Jurnal Sains Dasar Vol 9, No 1 (2020): April 2020
Publisher : Faculty of Mathematics and Natural Science, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jsd.v9i1.38920

Intensitas bunyi dari perambatan akustik pada resonator tipe-H dipengaruhi oleh konfigurasi saluran buffer. Bertambahnya panjang buffer tidak lebih berpengaruh terhadap intensitas bunyi dibandingkan dengan perubahan diameter saluran. Hal ini disebabkan adanya head loss, yaitu energi gelombang yang datang tidak semuanya ditransmisikan, tapi sebagian dipantulkan sehingga akan mengurangi intensitas bunyi yang ditransmisikan. Efek head loss ini terjadi di antaranya berupa gesekan pada sistem saluran dan tumbukan karena sambungan atau diskontinuitas saluran. Dalam penelitian ini dilakukan simulasi perambatan akustik dalam resonator tipe H menggunakan metode matriks transmisi dan persamaan Bernoulli. Dengan memvariasi panjang dan jari-jari buffer diperoleh nilai simulasi dari frekuensi resonansi resonator tipe H tersebut sebesar 1631 Hz.

DISTRIBUTION OF PARASTATISTICS FUNCTIONS: AN OVERVIEW OF THERMODYNAMICS PROPERTIES R. Yosi Aprian Sari; W. S. B. Dwandaru
Jurnal Sains Dasar Vol 4, No 2 (2015): October 2015
Publisher : Faculty of Mathematics and Natural Science, Universitas Negeri Yogyakarta

This study aims to determine the thermodynamic properties of the parastatistics system of order two. The thermodynamic properties to be searched include the Grand Canonical Partition Function (GCPF) Z, and the average number of particles N. These parastatistics systems is in a more general form compared to quantum statistical distribution that has been known previously, i.e.: the Fermi-Dirac (FD) and Bose-Einstein (BE). Starting from the recursion relation of grand canonical partition function for parastatistics system of order two that has been known, recuresion linkages for some simple thermodynamic functions for parastatistics system of order two are derived. The recursion linkages are then used to calculate the thermodynamic functions of the model system of identical particles with limited energy levels which is similar to the harmonic oscillator. From these results we concluded that from the Grand Canonical Partition Function (GCPF), Z, the thermodynamics properties of parastatistics system of order two (paraboson and parafermion) can be derived and have similar shape with parastatistics system of order one (Boson and Fermion). The similarity of the graph shows similar thermodynamic properties. Keywords: parastatistics, thermodynamic properties

Singularitas Efek Tepi dari Diskontinuitas Saluran pada Resonator Silinder Tipe-H R. Yosi Aprian Sari; Agung Bambang Setio Utomo; Mitrayana Mitrayana; Danang Lelono; Supardi Supardi
Jurnal Sains Dasar Vol 11, No 1 (2022): April 2022
Publisher : Faculty of Mathematics and Natural Science, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jsd.v11i1.48872

Diskontinuitas saluran pada resonator silinder tipe-H sangat mempengaruhi perambatan gelombang akustik di dalamnya yang menimbulkan singularitas di ujung luas penampang resonator yang lebih kecil. Singularitas efek tepi ini memunculkan pola osilasi sehingga dapat mengurangi nilai koefisien transmisi akustik. Tujuan dari penelitian ini adalah menentukan desain optimal resonator dan frekuensi resonansinya dengan mempertimbangkan pengaruh diskontinuitas saluran. Metode yang digunakan dalam penelitian ini adalah simulasi lewat metode matriks transmisi (MMT) dan optimasi menggunakan algoritma genetika (AG). Adapun hasil yang diperoleh dalam penelitian ini adalah panjang buffer (l_buf )=48,8 mm, panjang resonator (l_res )=102,5 mm, jari-jari buffer (r_buf )=9,2 mm, dan jari-jari resonator (r_res )=2,9 mm, serta nilai frekuensi resonansi f=1610,6 Hz.

Conceptual Shield Design for Boron Neutron Capture Therapy Facility Using Monte Carlo N-Particle Extended Simulator with Kartini Research Reactor as Neutron Source Afifah Hana Tsurayya; Azzam Zukhrofani Iman; R. Yosi Aprian Sari; Arief Fauzi; Gede Sutresna Wijaya
ASEAN Journal on Science and Technology for Development Vol. 35 No. 3 (2018): Developments in Nuclear Techniques in the Treatment of Cancer
Publisher : Universitas Gadjah Mada

The research aims to measure the radiation dose rate over the radiation shielding which is made of paraffin and aluminium and to determine the best shield material for the safety of radiation workers. The examination used MCNP (Monte Carlo N-Particle) simulator to model the BNCT neutron source and the shield. The shield should reduce radiation to less than the dose limit of 10.42 µSv/h, which is assumed to be the most conservative limit when the duration of workers is 1920 h. The first design resulted in a radiation dose rate which was still greater than the limit. Therefore, optimization was done by adding the lead on the outer part of the shield. After optimization by adding the lead with certain layers, the radiation dose rate decreased, with the largest dose being 57.60 µSv/h. Some locations over the limit could be overcome by other radiation protection aspects such as distance and time. The paraffin blocks were covered by aluminium to keep the shield structure. The lead was used to absorb the gamma ray which resulted from the interaction between the neutrons and aluminium.

Dinamika Pertukaran Partikel Pada Interaksi Nukleon-Nukleon Dalam Potensial Lokal R Yosi Aprian Sari; Supardi S; Agung BSU; Arief Hermanto
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 2, No 02 (2012): October
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v2i02.1282

The interaction of two nucleons in the form of protons and neutrons as a bound system in the local potential, known as the deuteron, has been investigated. Two-nucleon interaction potential field through the core will produce a nuclear force where the force between nucleons is generated by the exchange of mesons. One of the members of the group of meson particles is pion. Pion can be chargedπ + ,π -or neutral,π 0. Interaction potential form of the simplest is the exchange of one pion potential (OPEP), V OPEP , which has a radially independent of Yukawa potential. In this study, the first step taken is to perform discretization of the OPEP potential expression coupled with the equation of the boundary conditions due to the influence of interaction distances. The next step is to implement a programming technique to obtain the value associated with the potential influence of OPEP in the deuteron, the magnitudes of the static deuteron, such as a pion distance exchange, and mass estimates pion involved in this interaction.

Electromagnetics Properties of Non-Relativistic Deuteron in Ground State R. Yosi Aprian Sari; Denny Darmawan
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 6, No 01 (2016): IJAP VOLUME 06 ISSUE 01 YEAR 2016
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v6i01.1802

Proton-neutron interaction that makes up deuteron is a mixture state of ????13 dan ????13, which are each associated with a state ????=0, ????=1 and ????=2, ????=1. In the proton-neutron interaction, there are particle exchanges of medium range (1 fm≤????≤2 fm) i.e. scalar meson exchange and the long range (????>2 fm) i.e. one pion exchange. The electromagnetic properties of non-relativistic deuteron in the ground state can be found from the coupled differential equation, such as magnetic dipole moment, 〈????D〉=0.856521???????? and electrical quadrupole moment, 〈????D〉=0.00291396 b.

PELATIHAN PRAKTIKUM IPA SD BAGI GURU-GURU SD YANG BUKAN MEMILIKI LATAR BELAKANG IPA DI KABUPATEN BANTUL R. Yosi Aprian Sari; Denny Darmawan; Warsono Warsono; Ariswan Ariswan
Jurnal Pengabdian Masyarakat MIPA dan Pendidikan MIPA Vol 1, No 1 (2017)
Publisher : Yogyakarta State University

Permasalahan pendidikan di Indonesia khususnya di Kabupaten Bantul salah satunya adalah kurang meratanya penyebaran guru-guru khususnya pada keahlian tertentu, misalkan guru IPA. Di satu sisi, ada tuntutan keprofesional guru-guru artinya guru adalah faktor penentu keberhasilan proses pembelajaran yang berkualitas, sehingga berhasil tidaknya pendidikan mencapai tujuan selalu dihubungkan dengan kiprah para guru. Oleh karena itu, usaha-usaha yang dilakukan dalam meningkatkan mutu pendidikan hendaknya dimulai dari peningkatan kualitas guru. Guru yang berkualitas diantaranya adalah mengetahui dan mengerti peran dan fungsinya dalam proses pembelajaran. Tapi disisi lain, guru dituntut untuk mengerti dan memahami sesuatu yang bukan latar belakangnya. Ironis memang ...Salah satu solusi terkait dengan permasalahan di atas, walaupun bukan solusi yang terbaik adalah memberikan pelatihan berupa praktikum IPA bagi guru-guru SD yang tidak memiliki latar belakang IPA. Bentuk praktikum ini menyesuaikan dengan jenis percobaan yang ada di SD, yaitu sederhana dan bisa dilakukan oleh siswa sendiri. Selain Ada 8 jenis percobaan yang dilakukan, 6 diantaranya bersesuaian dengan materi IPA SD dan sisanya cenderung bersifat edutainment berbasis pemanfaatan limbah.Evaluasi yang dilakukan selama kegiatan PPM ini terdiri dari 2 bentuk, yaitu evaluasi kinerja yang dilakukan oleh tim PPM dan evaluasi berupa kuisioner yang diisi oleh peserta guru-guru. Dari evaluasi kinerja, peserta yang guru-guru SD sangat antusias mengikuti kegiatan pelatihan ini dengan rata-rata nilai aktivitas 83,3 masuk dalam kategori baik. Sedangkan dari kuisioner yang diberikan oleh guru-guru, pelatihan sejenis sangat diperlukan untuk menambah pengalaman dan pengetahuan khususnya praktikum IPAKata kunci: pelatihan praktikum IPA, proses pembelajaran IPA

Workshop Praktikum Sederhana Bagi Guru-Guru SD Kelas 4 Dan 5 Berbasis Pemanfaatan Limbah Di Kabupaten R. Yosi Aprian Sari; Denny Darmawan; Rida Siti Nur'aini Mahmudah
Jurnal Pengabdian Masyarakat MIPA dan Pendidikan MIPA Vol 2, No 2 (2018): Vol 2, No 2 (2018)
Publisher : Yogyakarta State University

Pembelajaran IPA tidak harus dilakukan di dalam kelas, ataupun dengan menggunakan peralatan laboratorium yang bagus dan canggih apalagi terkomputerisasi. Pembelajaran IPA bisa dilakukan di luar kelas dan dapat dilakukan berbagai bentuk kegiatan, antara lain kegiatan praktikum. Tujuan utama dari kegiatan ini adalah menyegarkan kembali jenis-jenis praktikum yang bisa dilakukan sekaligus untuk memperkuat pemahaman konsepnya. Sedangkan tujuan lainnya adalah agar guru-guru bisa berinovasi dan berimprovisasi merancang kegiatan pembelajaran anak-anak khususnya kelas 4 dan 5 terutama yang berkaitan dengan praktikum IPA.Kegiatan ini dilakukan berupa percobaan yang dilakukan secara berkelompok dan diawali dengan memberikan modul yang berisikan panduan pelaksanaan praktikum dan diakhiri penjelasan dan pemaknaan fisisnya. Kegiatan ini dilakukan di dalam kelas dan di luar kelas. Adapun jenis praktikum yang dilakukan adalah Mekanika (GLB dan GLBB), Kalor (Perubahan Wujud Benda), Gelombang, Optika (lensa dan cermin), Listrik dan Magnet, Bumi dan Alam Semesta, dan Balon Gas. Evaluasi yang dilakukan selama kegiatan ini terdiri dari 2 bentuk, yaitu evaluasi kinerja yang dilakukan oleh tim dan evaluasi berupa kuisioner yang diisi oleh peserta guru-guru. Dari evaluasi kinerja, peserta yang guru-guru SD sangat antusias mengikuti kegiatan pelatihan ini dengan rata-rata nilai aktivitas 83,30 masuk dalam kategori baik dan nilai evaluasi guru selama kegiatan berlangsung 91,46 masuk dalam katagori sangat baik. Sedangkan dari kuisioner yang diberikan oleh guru-guru, pelatihan sejenis sangat diperlukan untuk menambah pengalaman dan pengetahuan khususnya praktikum IPA khususnya dalam merancang alat praktikum sederhana yang berasal dari lingkungan sekitar. Kata kunci: praktikum IPA, proses pembelajaran IPA. Simple Experiment Workshop for Elementary School Teachers of Class 4 And 5 Based on Waste Utilization in Bantul Distric Abstract Science learning does not have to be done in the classroom, or by using good and sophisticated laboratory equipment let alone computerized. Science learning can be done outside the classroom and can be done various forms of activities, such as experiment activities. The main purpose of this activity is to re-type the kinds of experiment that can be done as well as to strengthen the understanding of the concept. While the other goal is for teachers to innovate and improvise the activities that are being built with the science lab.This activity is carried out with experiments conducted in groups and begins by providing a module that contains guidelines for the implementation of the practicum and the end of explanation and the physical meaning. This activity is done in the classroom and outside the classroom. The types of experiment performed are Mechanics (GLB and GLBB), Calor (Change of Being), Waves, Optics (lens and mirror), Electricity and Magnetism, Earth and Universe, and Gas Balloon.Evaluation done during the workshop consisted of 2 forms, they were performance evaluation done by the team and questionnaire for the participant. From performance evaluation, the participant got average activity score of 83,30 which is categorized as good and the evaluation of teachers during the course of 91.46 is included in the category very well. From questionnaire, the workshop is needed to add experience and knowledge in science.Keywords: Keywords: science experiment, science instruction

Application Of Inverted Pendulum in Laplace Transformation of Mathematics Physics Trisonia Fitria; Wipsar Sunu Brams Dwandaru; Warsono; R. Yosi Aprian Sari; Dian Puspita Eka Putri; Adiella Zakky Juneid
Jurnal Penelitian Pendidikan IPA Vol 9 No 7 (2023): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i7.2953

The Laplace transform is a technique used to convert differential equations into algebra, it is often used for the analysis of dynamic systems and inverted pendulum systems. An inverted pendulum is a mechanism that moves objects from one place to another and shows the function of its activity while walking. This system is widely used in various fields, for example in the fields of robotics, industry, technology and organics. In an inverted pendulum there is an inverted pendulum dynamic system with a reading and driving force. The type of research used is pure research with quantitative methods, the aim is to develop science that aims to find new theories and develop existing theories in natural science. The results of the study show that using the Laplace transform can make it easier to find solutions regarding the inverted pendulum system for a variety of conditions, both in the initial conditions and when given an additional force or load, so it is concluded the application of the Laplace transform is useful for understanding how an inverted pendulum system will react to various forces, loads and initial conditions, which can be used to predict how the system will operate in the real world.

Co-Authors Adiella Zakky Juneid Afifah Hana Tsurayya Afifah Hana Tsurayya Agung Bambang Setio Utomo Agung Bambang Setio Utomo Agung BSU Aini Rahmatun Ummi Fadlilah Arief Fauzi Arief Hermanto arif gunawan arif gunawan Ariswan Ariswan Azzam Zukhrofani Iman Bima Anang Dwijaya Denny Darmawan Dian Puspita Eka Putri Gede Sutresna Wijaya Gede Sutresna Wijaya Mitrayana - Noor Rika Safitri Supardi S Supardi Supardi Trisonia Fitria W. S. B. Dwandaru Warsono Warsono Warsono Wipsar Sunu Brams Dwandaru

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