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Progressive Physics Journal

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Published by Universitas Mulawarman

ISSN : - EISSN : 27227707 DOI : https://doi.org/10.30872/ppj.v3i2

Core Subject : Health, Science, Engineering,

Astronomy Control & Systems Engineering Earth & Planetary Sciences Electrical & Electronics Engineering Energy Health Professions Materials Science & Nanotechnology Physics

Progressive Physics Journal adalah kumpulan hasil penelitian berbagai cabang ilmu Fisika, seperti Fisika Teori, Fisika Material, Fisika Elektronika & Instrumentasi, Fisika Medik, Fisika Komputasi dan Pemodelan, Geofisika, Oseanografi, dan cabang ilmu Fisika lainnya yang masih relevan. Progressive Physics Journal terbit sebanyak 2 kali dalam setahun. Ilmu Fisika perlu dikomunikasikan kepada masyarakat untuk diambil manfaatnya baik secara langsung maupun tidak langsung dan untuk perkembangan ilmu Fisika itu sendiri. Progressive Physics Jornal, sebagaimana nama tersebut diberikan, dimaksudkan tidak hanya untuk mengkomunikasikan ilmu Fisika yang bersifat atraktif dan inovatif, tapi juga progresif.

Arjuna Subject : Fisika dan Astronomi - Fisika dan Astronomi (Lain-Lain)

Articles 67 Documents

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Analisis Lompatan Katak dan Manusia dalam Tinjauan Biomekanika Nadila Putri Sawhana
Progressive Physics Journal Vol 1 No 1 (2020): Progressive Physics Journal
Publisher : Program Studi Fisika, Jurusan Fisika, FMIPA, Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/ppj.v1i1.564

Biomechanics is applied physics with implementing mechanics concepts in biological system. Biomechanics studies the movements of the whole body on living organism. The purpose of our research was to know the differences of jump between frog and human in the biomechanical field. In our experiment it was used the samples of 10 frogs and 10 humans by college students of physics department, Faculty of Mathematics and Natural Science, with randomly selected. The results of the research were: first, the ratios of the jump distance to mass of frog bodies were bigger than those of human bodies; second, the effective angles of the frog’s furthest jumps were (36.45 ± 0.027)° and those of human’s furthest jumps were (60.45 ± 0.002)°. The first result indicated that the frog’s tendon was more elastic than the human’s tendon.

Eksperimen Elastisitas Bahan yang Divariasi dengan Menerapkan Prinsip Cantilever Beam di Masa Pandemi Covid-19 Munir, Rahmawati; Amalia, Nadya; Rahman, Dui Yanto; Margaretta, Desiana Olenka; Putri, Erlinda Ratnasari
Progressive Physics Journal Vol 3 No 1 (2022): Progressive Physics Journal
Publisher : Program Studi Fisika, Jurusan Fisika, FMIPA, Universitas Mulawarman

Saat ini pandemi Covid-19 telah menjadi faktor yang sangat berpengaruh dalam melakukan penelitian. Oleh sebab itu, umumnya penelitian yang dilakukan menyesuaikan kondisi sekarang dengan memanfaatkan alat dan bahan yang mudah diperoleh dan bisa dikerjakan dari rumah atau secara virtual. Pada penelitian ini dilakukan eksperimen elastisitas bahan berdasarkan prinsip Cantilever Beam yang bisa dilakukan di rumah. Preparasi sampel dilakukan dengan memotong kertas dengan variasi bentuk geometri dan densitasnya. Adapun geometri yang dipilih adalah persegi panjang dan trapesium. Persegi panjang divariasi densitasnya dengan variasi kertas polos, melapisi pilox sepanjang sampel dan juga pilox berselingan.Sementara yang berbentuk trapesium ditentukan dengan variasi polos dan dipilox sepanjang sampel. Eksperimen sederhana dilakukan dengan melakukan pemotretan pada sampel dengan sudut kelengkungan 00 , 450 dan 900 . Hasil pemotretan diolah dengan menggunakan aplikasi Video Tracker Analysis, Visual Basic Application dan fitting polynomial dengan Excel. Hasil yang diperoleh menunjukkan nilai modulus young setiap sampel tanpa harus melakukan pengukuran langsung dengan alat yang canggih serta bisa dilakukan di rumah selama pandemi Covid-19. Eksperimen ini berpotensi untuk dikembangkan lebih lanjut sehingga dapat menghasilkan metode baru dalam pengukuran elastisitas bahan.

Analisis Treatment Planning System dengan Menggunakan Teknik Box dan Teknik Antero Posterior-Postero Anterior pada Kasus Kanker Serviks Yasinta Erikania Daniartie; Pratiwi Sri Wardani; Devina Rayzy Perwitasari Sutaji Putri; Robert Janssen Stevenly; Suryaningsih Suryaningsih
Progressive Physics Journal Vol 3 No 1 (2022): Progressive Physics Journal
Publisher : Program Studi Fisika, Jurusan Fisika, FMIPA, Universitas Mulawarman

Cervical cancer is cancer that grows in the cells on the cervix. Cervical cancer can be treated using radiotherapy. The purpose of this study was to determine the ratio of the dose received by the target volume and Organ at Risk (OAR) as well as the isodose curve using 4 directions of radiation field (gantry angle: 0°, 90°, 180° and 270°) and 2 directions of radiation field (gantry angle: 0° and 180°). The data processing step in this research was to do radiation planning (planning) by using 4 directions of radiation field (gantry angle: 0°, 90°, 180° and 270°) and 2 directions of radiation field (gantry angle: 0° and 180°). Then a comparative analysis of the dose value received by the target volume and Organ at Risk (OAR) was carried out. A comparative analysis of the isodose curve was performed by using each of the techniques. The results obtained from this study are the target volume has minimal dose using the box technique compared to the antero posterior-postero anterior technique. For Organ at Risk, namely bladder and rectum, the dose was minimal by using the box technique compared to using the anteroposteriorpostero anterior technique. Meanwhile, the right and left femoral heads received higher doses using the box technique than the antero-posterior-postero anterior technique. And for the isodose curve planning results using the box technique shows a more even distribution of the dose distribution to the entire target volume compared to the antero posterior-postero anterior technique.

Analisis Koefisien Serapan (Absorbsi) kebisingan pada Bahan Kayu (Triplek, Papan Kayu dan Kalsiboard) siti istikhomah; Syahrir Syahrir; Adrianus Inu Natalisanto
Progressive Physics Journal Vol 2 No 1 (2021): Progressive Physics Journal
Publisher : Program Studi Fisika, Jurusan Fisika, FMIPA, Universitas Mulawarman

Noise is a sound that humans do not want and it is an environmental factor that can negatively affect health. To overcome the noise issue, many efforts have been made to reduce noise levels. An example is the manufacture of the walls of a house using materials with sound and absorbent standards. The materials used can also be derived from types of wood such as plywood, wood panels and calciboards. Therefore, the value of its sound absorption coefficient is calculated to find out which active material is to be used in the manufacture of the building. Based on the research results, the value of the sound absorption coefficient of the three types of materials, it can be seen that the shape of the graph and its analysis states that the lowest sound absorption coefficient is most likely at the lower frequencies and the highest value of the sound absorption coefficient tends to be at the higher frequencies. In fact, when viewed as a whole, the magnitude and magnitude of the sound absorption coefficient on the graph is not in line with the increase in the frequency value.

Analisis perubahan sifat fisis (viskositas, kerapatan, tegangan permukaan dan koefisien laju penurunan suhu) minyak kelapa (coconut oil) terhadap beberapa kali pemanasan Khusnul Khotimah; Supriyanto Supriyanto; Adrianus Inu Natalisanto; Asmaidi Asmaidi
Progressive Physics Journal Vol 3 No 2 (2022): Progressive Physics Journal
Publisher : Program Studi Fisika, Jurusan Fisika, FMIPA, Universitas Mulawarman

The purpose of this study was to ascertain the impact of repeated heating of coconut oil on the value of viscosity, density (mass density), surface tension, and the coefficient of temperature reduction rate (Newton cooling constant). The coconut oil sample used was the result of my own production. The heating repetition was carried out at most five times with a peak temperature of 90oC. The physics quantities were respectively determined by the methods of the falling ball, the directly measuring the mass and volume with the measuring cylinder, the raising fluid in a capillary tube, and the Newton cooling.From this study, it was found that there was an effect of repeated heating of coconut oil on the value of viscosity, mass density, surface tension, and the Newton cooling constant. This effect is indicated by the presence of a functional relationship between the heating test and the value of the four physical quantities. The relationship between heating repetition and viscosity is a quadratic function, the relationship between heating repetition and mass density is a linear function, the relationship between heating repetition and surface tension is a quadratic function, and the relationship between heating repetition and Newton cooling constant is a quartic function. The four functional relationships are empirical equations that state the laws of nature in a certain heating range and can be used as material for further studies to reveal the physical mechanisms that build them, including determining the general equations that unite them.

studi penggunaan superkapasitor sebagai media penyimpan energi NURHASMIA NURHASMIA
Progressive Physics Journal Vol 2 No 2 (2021): Progressive Physics Journal
Publisher : Program Studi Fisika, Jurusan Fisika, FMIPA, Universitas Mulawarman

Supercapacitor is an alternative media for electrical storage, this media is different from conventional battery and capacitor, supercapacitor is capacitor with bigger capacitance than battery. The purpose of this research is to find out how long it takes in the process of charging and discharging the voltage on the supercapacitor, by using 3 methods of charging and discharging namely charging and discharging singly, series and parallel. From the results obtained, the time of charging on single pair supercapacitor needs 5 hours and the time for discharging supercapacitor needs 11 hours and thirty minutes. The process on two supercapacitors in series, the time to charging needs 27 hours and the time to discharging needs 12 hours, while the two parallel supercapacitors needs 5 hours to fill and needs 15 hours to empty the supercapacitor.

Analisis Spasial Persebaran Dan Pemetaan Kerawanan Daerah Titik Panas Di Kalimantan Timur Menggunakan Spatial Pattern Analysis Dan Flexibly Shaped Spatial Scan Statistic Tiara Nur Hikmaulida; Memi Nor Hayati; Sri Wahyuningsih
Progressive Physics Journal Vol 1 No 1 (2020): Progressive Physics Journal
Publisher : Program Studi Fisika, Jurusan Fisika, FMIPA, Universitas Mulawarman

The statistical method used to analyze spatial data and spatial statistics. The case study in this study is the average number of hotspots in East Kalimantan by Regency / City in 2016-2018. This study aims to analyze the presence or absence of spatial autocorrelation in the data on the number of hotspots, determine the distribution pattern of hotspots, as well as determine the level of vulnerability of potential areas for forest and land fires in East Kalimantan by Regency / City in 2016-2018. The method used to analyze spatial autocorrelation globally and determine the distribution patterns is the Moran Index. Local Indicator of Spatial Autocorrelation (LISA) to analyze spatial autocorrelation locally. Spatial autocorrelation analysis results globally using the Moran Index with α = 25% shows that there is a spatial autocorrelation in the average number of hotspots in East Kalimantan in 2016-2018. The distribution pattern of hotspots in East Kalimantan is the pattern of spread which shows that in 2016-2018 the hotspots spread in each district / city of East Kalimantan. Meanwhile, the results of the local analysis using LISA showed that there were spatial autocorrelations in several districts / cities in East Kalimantan. The method used to determine the level of vulnerability of potential forest and land fires is Flexibly Shaped Spatial Scan Statistics and LISA. The results showed that the regencies / cities included in the category of forest and land fire hazard were Samarinda City, Bontang City, Kutai Kartanegara District and East Kutai.

Investigasi pola XRD dan ukuran kristal pada TiO2 terdoping vanadium menggunakan aplikasi VESTA Elfrida Dwi Saputri; Rahmawati Munir; Adrianus Inu Natalisanto
Progressive Physics Journal Vol 3 No 1 (2022): Progressive Physics Journal
Publisher : Program Studi Fisika, Jurusan Fisika, FMIPA, Universitas Mulawarman

Visualization of crystal structure and simulation of X-ray diffraction patterns of TiO2 (Titanium dioxide) was successfully performed by VESTA application. The purpose of this research is to obtain the relation of lattice parameter and composition to the diffraction pattern. The program on VESTA needs several input parameters that can be found on Crystallography Open Database (COD). The obtained output of the VESTA application are in the form of crystal structure and diffraction pattern graph. The data obtained by VESTA can be used to estimate the size of the crystal. The result showed that TiO2 has a tetragonal shape crystal structure. The addition of dopant such as Vanadium does not change the crystal structure and does not change the peak position of diffraction pattern graph.

Pembuatan dan Karakterisasi Rochelle Salt Crystal M. Wafieq Akbar Al Asyrafi; Adrianus Inu Natalisanto; Rahmat Gunawan
Progressive Physics Journal Vol 2 No 1 (2021): Progressive Physics Journal
Publisher : Program Studi Fisika, Jurusan Fisika, FMIPA, Universitas Mulawarman

Rochelle Salt is the first synthesis Crystal made by Pierre Siegnette La Rocchelle in France. Rochelle Salt have several characteriztion one of them is piezoelectric effect where the crystal can change the kinetic energy to electrical energy instead this is the one of rewenable source altenative energy. Rochelle Salt can be made with tartar cream and washing soda reacted with distilled water as a solvent. The solution is reacted until there is no more reaction or supersaturation condition. Wait the solution for 2 days until the crystal seed appears. The crystal growth using the method of growing crystal in solution for 1 month until the crystal bigger enough for research to find the piezoelectric effect. Based on the result that have been obtained, Rochelle Salt have piezoelectric effect. Crystal hit using with wooden hitter and metal hitter, the voltage is increase when the crystal is hit by hitter. The piezoelectric also disappear along with time.

Aplikasi Metode Spektrofotometri pada Klasifikasi Gas Karbon Monoksida (CO) dan Uap Bahan Bakar Petrodiesel (C14H30) Happy Nugroho; Edhi Sarwono; Aditya Rinaldi
Progressive Physics Journal Vol 1 No 1 (2020): Progressive Physics Journal
Publisher : Program Studi Fisika, Jurusan Fisika, FMIPA, Universitas Mulawarman

Gas classification techniques are often found in several applied fields such as, detection of leak gas in gas cylinders, monitoring the threshold of harmful pollutant gases in the air, health diagnostics, early detection of fire hazards, and others. This requires measurement techniques that are adaptive and robust that can dynamically capture information on changes in vapor or gas compounds contained in free air. This research has been conducted to analyze and identify the types of gas compounds, namely CO and petrodiesel fuel vapor (C14H30). The design of this tool uses the principle of spectrophotometry and the calculation of Backprogation Neural Networks. The working principle is that light radiation in the Light Emitting Diode (LED) series, which has a wavelength range of 385nm to 1720nm, is absorbed to penetrate CO gas or petrodiesel fuel vapor (C14H30) that you want to identify. Light radiation that has passed through the gas / vapor compound was captured by the photodiode sensor. The emission of LED series light radiation produces different wavelength absorption patterns that will be processed by the Backprogation Neural network as an input signal in the identification and learning process. The results of this experiment show the success rate of the Backpropagation neural network in identifying the type of CO gas and petrodiesel fuel vapor (C14H30) is 80%.

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Kalimantan timur

INDONESIA

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Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Erlinda Ratnasari Putri

Contact Email ppj@fmipa.unmul.ac.id

Phone +628195142800

Journal Mail Official ppj@fmipa.unmul.ac.id

Editorial Address http://jurnal.fmipa.unmul.ac.id/index.php/ppj/about/editorialTeam

Location Kota samarinda, Kalimantan timur INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Erlinda Ratnasari Putri

Contact Email
ppj@fmipa.unmul.ac.id

Phone
+628195142800

Journal Mail Official
ppj@fmipa.unmul.ac.id

Editorial Address
http://jurnal.fmipa.unmul.ac.id/index.php/ppj/about/editorialTeam

Location
Kota samarinda,

Kalimantan timur

INDONESIA