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<![CDATA[PEMANFAATAN SULING DIATONIK (SULING SUNDA) UNTUK MENGHITUNG FREKUENSI DAN CEPAT RAMBAT BUNYI DI UDARA MENGGUNAKAN SOFTWARE AUDACITY DAN KETERKAITANNYA TERHADAP ASPEK KESEHATAN ]]>
<![CDATA[Pebralia, Jesi -]]>
<![CDATA[ Jurnal Inovasi Pendidikan Vol 9, No 2 (2019) ]]>
Publisher : <![CDATA[Universitas Sriwijaya ]]>
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DOI: 10.36706/jip.v9i2.55
<![CDATA[This study aims to determine the value of frequency and speed of sound propagation in the air by using diatonic flutes and audacity software. In addition in this study, analysis of the relationship of frequency to health aspects were included. In this study there are two kind the research of methods, experimental method and literature study. The experimental method is used to obtain frequency and the speed of sound propagation data in the air using diatonic flute (Sundanese flute) and pentatonic flute (modern flute) as a comparison and measured using Audacity software. Literature study is used to find references about theories and or facts that explain the relationship between rhythmic sounds to the aspects of human health. The results showed that: 1) the frequency produced by the diatonic flute was in the range of 649 Hz - 753 Hz, 2) the average value of speed of sound propagation in the air was measured using a diatonic flute (Sundanese flute) of 291,472457 m / s, 3 ) the diatonic flute frequency (Sundanese flute) is greater than the pentatonic flute (modern flute), 4) the frequency that can be utilized in the health field is sound with low to medium frequency, which is in the range of 750-3000 Hz so that the sound produced by the diatonic flute has an impact which is good for improving health.]]>
<![CDATA[RANCANG BANGUN SISTEM PENANGKAP DAN PEMBACAAN GELOMBANG SEISMIK REFRAKSI UNTUK EKSPLORASI HIDROKARBON ]]>
<![CDATA[Maison Maison]]>;
<![CDATA[Faizar Farid]]>;
<![CDATA[Samsidar]]>;
<![CDATA[Linda Handayani]]>;
<![CDATA[Rustan]]>;
<![CDATA[Jesi Pebrilia]]>;
<![CDATA[Iful Amri]]>
<![CDATA[ JOURNAL ONLINE OF PHYSICS Vol. 5 No. 1 (2019): JOP (Journal Online of Physics) Vol 5 No 1 ]]>
Publisher : <![CDATA[Prodi Fisika FST UNJA ]]>
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DOI: 10.22437/jop.v5i1.8115
<![CDATA[The subsurface data acquisition in seismic eksploration usually using expensive equipment. In this work, a low-cost seismic equipment system has been developed for receive and record seismic wave. This system consist of mikrocontroller and software LabView that connected to PC. The subsurface low signals is recorded by geophone and through the amplifier instrument non-inverting. Then, the digital signals is prosessed by Mikrocontroller and visualize by LabView. Output of seismic measurement using this system design are travel time and amplitude. Travel time is used to modelling density and wave velocity to generate wave model. The expected model can give us value of density and wave velocity to obtain the anomaly. It has been tested using 1 geophone and successfully showed the wave, amplitude, and travel time.]]>
<![CDATA[PRINSIP KETIDAKPASTIAN HEISENBERG DALAM TINJAUAN KEMAJUAN PENGUKURAN KUANTUM DI ABAD 21 ]]>
<![CDATA[Jesi Pebralia]]>
<![CDATA[ JOURNAL ONLINE OF PHYSICS Vol. 5 No. 2 (2020): JOP (Journal Online of Physics) Vol 5 No 2 ]]>
Publisher : <![CDATA[Prodi Fisika FST UNJA ]]>
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DOI: 10.22437/jop.v5i2.9049
<![CDATA[The Heisenberg uncertainty principle is the basic foundation of quantum physics that characterizes quantum physics with classical physics. The Heisenberg uncertainty principle provides boundaries where there are no absolute measurement results in any quantum measurement. Along with the development of increasingly sophisticated measurement instruments in the 21st century, presents the opportunity for the emergence of modifications from the Heisenberg uncertainty principle from the general form of existing formulations. This study aims to provide an overview of the opportunities for Heisenberg uncertainty formulation and provide a description of the stages of the Heisenberg uncertainty formulation's uncertainty formulations that have been reviewed by previous researchers. The research method used is the method of literature study that aims to find out the background and theories of the development of Heisenberg's uncertainty principle and to explain the formulation directly which aims to determine the technical sequence of modifications to the existing formulation. Through this research, the authors managed to get an opportunity for the emergence of new modifications to the Heisenberg uncertainty principle formulation.]]>
<![CDATA[PENGUJIAN SISTEM KENDALI TEMPERATUR PADA SISTEM OTOMATISASI TUNGKU PEMBAKARAN PRODUKSI BIOCHAR ]]>
<![CDATA[Nurhidayah Nurhidayah]]>;
<![CDATA[Tika Restianingsih]]>;
<![CDATA[Frastica Deswardani]]>;
<![CDATA[Mardian Peslinof]]>;
<![CDATA[M.Ficky Afrianto]]>;
<![CDATA[Jesi Pebralia]]>
<![CDATA[ JOURNAL ONLINE OF PHYSICS Vol. 6 No. 2 (2021): JOP (Journal Online of Physics) Vol 6 No 2 ]]>
Publisher : <![CDATA[Prodi Fisika FST UNJA ]]>
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DOI: 10.22437/jop.v6i2.13133
<![CDATA[Telah dilakukan pengujian akurasi sistem kendali temperatur pada tungku pembakaran produksi biochar. Pengujian ini bertujuan untuk mengetahui keakuratan sistem kendali temperatur pada tungku pembakaran produksi biochar. Metode pengujian yang dilakukan yaitu dengan cara mengatur suhu tungku pembakaran pada temperatur maksimal yaitu sebesar 4000C. Berdasarkan pengujian yang telah dilakukan diperoleh bahwa sistem dapat bekerja dengan baik sampai mencapai dimana tingkat keakuratan maksimal yang diperoleh sebesar 99%.]]>
<![CDATA[APLIKASI SENSOR KELEMBABAN DAN FLEX SENSOR BERBASIS ARDUINO UNO UNTUK SISTEM PENDETEKSI LONGSOR ]]>
<![CDATA[Rustan Rustan]]>;
<![CDATA[Jesi Pebralia]]>;
<![CDATA[Tika Restianingsih]]>;
<![CDATA[Frastica Deswardani]]>;
<![CDATA[Mardian Peslinof]]>;
<![CDATA[Nurhidayah Nurhidayah]]>;
<![CDATA[Iful Amri]]>
<![CDATA[ JOURNAL ONLINE OF PHYSICS Vol. 7 No. 1 (2021): JOP (Journal Online of Physics) Vol 7 No 1 ]]>
Publisher : <![CDATA[Prodi Fisika FST UNJA ]]>
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DOI: 10.22437/jop.v7i1.14805
<![CDATA[Early detection of landslides is very important to minimize the number of deaths. Technological developments allow humans to predict the signs of landslides more accurately, quickly, and scientifically. In this study, sensors were tested to measure landslide disaster parameters, namely humidity sensors to measure soil moisture and flex sensors to measure soil movement. The sensor is controlled using a microcontroller Arduino Uno. A functionality test was carried out to test the ability of the sensors. The functionality test was carried out using the unit testing method. The unit testing method is carried out by comparing the functional test results of each sensor to the expected response. The moisture sensor functionality test shows that the sensor is able to respond to changes in water content in the soil with changes in voltage. The linear equation resulting from the calibration of the humidity sensor is y = -0.126x + 2.666 with R2 = 0.871. The flex sensor functionality test shows that the sensor is able to detect soil movement in the presence of changes in voltage. The linear equation resulting from the flex sensor calibration is y = -2.861x + 2507 with R2 = 0.964. This shows that the humidity sensor and flex sensor are good enough to be applied in the design of a landslide detection system.]]>
<![CDATA[STUDY AWAL KARAKTERISASI SENSOR WARNA TC3200 UNTUK MENENTUKAN KADAR KAFEIN PADA KOPI ]]>
<![CDATA[Heriyanti Heriyanti]]>;
<![CDATA[Samsidar Samsidar]]>;
<![CDATA[Iful Amri]]>;
<![CDATA[Jesi Pebralia]]>;
<![CDATA[Rustan Rustan]]>;
<![CDATA[Linda Handayani]]>;
<![CDATA[Mardian Peslinof]]>;
<![CDATA[Desi Ayundari]]>;
<![CDATA[Sutrisno Sutrisno]]>
<![CDATA[ JOURNAL ONLINE OF PHYSICS Vol. 7 No. 1 (2021): JOP (Journal Online of Physics) Vol 7 No 1 ]]>
Publisher : <![CDATA[Prodi Fisika FST UNJA ]]>
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DOI: 10.22437/jop.v7i1.15286
<![CDATA[Pengukuran kadar kafein saat ini dibutuhkan agar penggunaan/konsumsi kopi sesui dengan dosis yang dibutuhkan, akan tetapi, sulitnya karakterisasi dan uji kimia dalam penentuan kadar kafein menjadi hambatan untuk mengetahui dosis kafein secara cepat dan tepat. Pada penelitian ini telah dilakukan karakterisasi sensor warna TC3200 sebagai studi awal rangkaian pembuatan alat ukur kafein berbasis sensor. Sampel yang digunakan adalah kopi Liberika, Arabika dan Robusta yang berasal dari Provinsi Jambi. Preparasi sampel dilakukan dengan proses roasting pada suhu 180OC dan pada saat proses berjalan pengambilan sampel secara real time pada (t= 38-45s), hasil preparasi sampel dilakukan uji UV-Vis untuk mengetahui konsentrasi kandungan kadar kafein. Selanjutnya karakterisasi sensor warna TC3200 dilakukan untuk mengetahui nilai RGB (Red, Green, Blue) dari masing – masing sampel kopi. Hasil penelitian didapatkan nilai kadar kafein dari pengukuran UV-Vis yang akan menjadi database sensor, dan hasil karakterisasi sensor warna TC3200 pada kopi Liberika, Arabika dan Robusta secara kuantitatif didapatkan tingkat kevalidan data masing – masing 80%, 60% dan 70% dan analisis kualitatif bahwa sensor dapat digunakan untuk menetukan kadar kafein pada kopi dengan tingkat kematangan atau waktu roasting kopi yang berbeda.]]>
<![CDATA[Modeling of Dynamics Object with Non-Holonomic Constraints Based on Maple in Cylinder Coordinate R×S^1×SO(3) ]]>
<![CDATA[Melly Ariska]]>;
<![CDATA[Hamdi Akhsan]]>;
<![CDATA[Muhammad Muslim]]>;
<![CDATA[Jesi Pebralia]]>;
<![CDATA[Arini Rosa Sinensis]]>;
<![CDATA[Tine Aprianti]]>
<![CDATA[ Jurnal Ilmu Fisika (JIF) Vol 14 No 1 (2022): March 2022 ]]>
Publisher : <![CDATA[Universitas Andalas ]]>
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DOI: 10.25077/jif.14.1.28-36.2022
<![CDATA[Reliable real-time planning for dynamic systems is crucial in today's rapidly growing automated ecosystem, such as the environment and methods of planning a robotic system. This paper describes the rigid dynamics system with non-holonomic constraints on the R×S^1×SO(3) configuration space. The method used is the motion planning network and numeric treatment using physics computation which can be used for non-holonomic object systems that move in real-time with Jellets Invarian (JI) approach. The JI approach can result in a motion system equation and evaluate the model of an object with non-holonomic constraints and also display experimental results for navigation in the R×S^1×SO(3) configuration space. The motion system with non-holonomic constraints used is Tippe top (TT). TT is a toy like a top which when rotated will flip itself with its stem. The author have finished in simulating the dynamics of TT motions in real time with the initial states that have been described with various coordinate in the  configuration space. Based on the results of previous studies on similar objects, TT was solved by the Eular-Lagrange Equation, Routhian Reduction Equation and Poincare. The author succeeded in describing the dynamics of TT motion in real time with predetermined initial conditions with various coordinates in the R^2×SO(3) configuration space.]]>
<![CDATA[PENGEMBANGAN TEMPAT SAMPAH PINTAR MENGGUNAKAN SENSOR ULTRASONIK BERBASIS ARDUINO UNO UNTUK LIMBAH MASKER ]]>
<![CDATA[Sri Purwaningsih]]>;
<![CDATA[Jesi Pebralia]]>;
<![CDATA[Rustan Rustan]]>
<![CDATA[ Jurnal Kumparan Fisika Vol. 5 No. 1: April 2022 ]]>
Publisher : <![CDATA[Unib Press ]]>
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DOI: 10.33369/jkf.5.1.1-6
<![CDATA[ABSTRAK Penggunaan masker telah menjadi kewajiban dan gaya hidup baru bagi masyarakat menyebabkan peningkatan limbah masker. Tempat sampah masker didominasi oleh tempat sampah konvensional yakni pengguna harus membuka dan menutup penutup tempat sampah tersebut dengan menggunakan tangan atau pijakan kaki dan dapat menjadi ancaman sumber penularan baru COVID-19. Pada penelitian ini dikembangkan tempat sampah pintar untuk limbah masker menggunakan sensor dan motor servo berbasis Arduini Uno. Sensor yang digunakan adalah sensor ultrasonik HC-SR04 sebagai pendeteksi jarak dan pengukur volume sampah limbah masker medis. Motor servo befungsi membuka dan menutup tempat sampah dan dikontrol oleh Arduino Uno secara otomatis. Hasil kalibrasi sensot ultasonik HC-SR04 yang telah dilakukan menghasilkan persaman linier dan nilai R2= 0.9986. Hal ini menunjukkan sensor ultrasonik HC-SR04 dapat diaplikasikan dalam pengembangan tempat sampah pintar. Kata kunci: Arduino Uno, Motor Servo, Sensor Ultrasonik, Tempat Sampah Pintar ABSTRACT The use of masks has become a requirement and a new lifestyle for the community has led to an increase in mask waste. The trash bin for masks waste are dominated by conventional trash bin, where users have to open and close the lid of the trash bin by using hands or footrests and this can pose a threat to a new source of COVID-19 transmission. In this study, a smart trash bin for mask waste was developed using an Arduino Uno-based sensor and servo motor. The sensor used is the ultrasonic sensor HC-SR04 as a distance sensor and measuring the volume of medical mask waste. The servo motor used to open and close the trash bin and is controlled by Arduino Uno automatically. The results of the ultrasonic sensor HC-SR04 calibration that have been carried out produce a linear equation and the value of R2 = 0.9986. This shows that the ultrasonic sensor HC-SR04 can be applied in the development of smart trash bins. Keywords: Ardunino Uno, Servo Motor, Ultrasonic Sensor, Smart Trash]]>
<![CDATA[Rancang Bangun Alat Kontrol Aliran Fluida Untuk Mensimulasikan Hukum Kontinuitas Sebagai Media Pembelajaran Fisika ]]>
<![CDATA[Jesi Pebralia]]>
<![CDATA[ Jurnal Ilmu Fisika dan Pembelajarannya (JIFP) Vol 2 No 2 (2018): Jurnal Ilmu Fisika dan Pembelajarannya (JIFP) ]]>
Publisher : <![CDATA[Program Studi Pendidikan Fisika, UIN Raden Fatah Palembang ]]>
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DOI: 10.19109/jifp.v2i2.2658
<![CDATA[This study aims to create a fluid flow control to simulate continuity law as a media for physics learning. Fluid flow control is designed using a digital devices, consist of two main components: Arduino Uno microcontroller and a water flow sensor, that is systematically designed. This study produces a valid fluid flow control to simulate the Continuity Law which can be used as a media for physics learning. Key words: Fluid flow, Arduino Uno, water flow sensor, Continuity Law.]]>
<![CDATA[ORIENTASI GERAK JATUH BEBAS PADA SISTEM TIGA PARTIKEL ]]>
<![CDATA[Jesi Pebralia]]>
<![CDATA[ Jurnal Ilmu Fisika dan Pembelajarannya (JIFP) Vol 1 No 2 (2017): Jurnal Ilmu Fisika dan Pembelajarannya (JIFP) ]]>
Publisher : <![CDATA[Program Studi Pendidikan Fisika, UIN Raden Fatah Palembang ]]>
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DOI: 10.19109/jifp.v1i2.2835
<![CDATA[Partikel merupakan objek yang memiliki massa, posisi, kecepatan, serta terpengaruh oleh gaya, tetapi tak berdimensi ruang. Namun kumpulan sistem partikel bisa menjadi sistem yang memiliki dimensi ruang. Berdasarkan penjelasan tersebut, struktur massa nonrigid dapat didekati dengan menggunakan sistem N partikel yang dihubungkan oleh beberapa "pegas" sederhana. Terdapat-benda-benda riil yang cenderung jatuh pada orientasi tertentu, trajektori gerak jatuh bebas sistem massa nonrigid ini relatif berbeda dengan gerak jatuh bebas partikel sederhana. Paper ini mensimulasikan gerak suatu benda yang tersusun oleh sistem partikel dimana distribusi massa, efek konstanta pegas, dan gesekan udara merupakan aspek penting yang harus diperhitungkan. Dilakukan juga perbandingan antara gerak pusat massa sistem massa nonrigid dengan gerak partikel sederhana. Diperkirakan semakin heterogen distribusi massa sistem partikel, orientasi gerak benda akan semakin acak.]]>
