cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kota surabaya,
Jawa timur
INDONESIA
JFA (Jurnal Fisika dan Aplikasinya)
Published by Institut Teknologi Sepuluh Nopember Surabaya
ISSN : 1858036X     EISSN : 24604682     DOI : -
Core Subject : Science,
Physics
JFA (Jurnal Fisika dan Aplikasinya, Abbreviation: J.Fis. dan Apl.) hanya menerbitkan artikel penelitian asli serta mengulas artikel tentang topik seputar bidang fisika (fisika teori, material, optik, instrumentasi, geofisika) dan aplikasinya. Naskah yang dikirimkan ke JFA belum pernah diterbitkan ditempat lain serta tidak dalam proses pertimbangan untuk diterbitkan ditempat lain, dalam bahasa apapun. Studi teoritis, eksperimental, dan praktis sama-sama didorong, seperti juga artikel interdisipliner dan yang timbul dari penelitian dan kolaborasi industri.
Arjuna Subject : -
Articles 604 Documents
 52   53   54   55   56 
Investigasi Difusi pada Sistem Urinari untuk Gangguan Fungsi Ginjal Model Empat Kompartemen menggunakan Metode Monte Carlo: Jovi Yuzzer Budiman, Jodelin Muninggar, Adita Sutresno Jovi Yuzzer Budiman Jovi Yuzzer Budiman; Jodelin Muninggar Jodelin Muninggar; Adita Sutresno Adita Sutresno
Jurnal Fisika dan Aplikasinya Vol 16 No 1 (2020): January 2020 Edition
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat, LPPM-ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j24604682.v16i1.5063

Abstract

Kidney is a pair of organ in our urinary system that function to filter blood and urine establishment through filtration, reabsorption and secretion process.Formation of urine is done through one of processes, named tubular reabsorption. This process is a process of diffusion, passively and facilitated. The process happens in tubular reabsorption in kidney can be simulated by using Monte Carlo Cell simulation. Making model of 4 compartments consist of blood vessel, 2 kidneys with one kidney experiencing decreased function of kidney and bladder. Two kidney compartments with one of it experiencing decreased function affect the diffusion process that happens in substance reabsorption process in kidney.The purpose of this research is to study the diffusion process which happens in kidney by selecting several fixed variable and indicators which will be inspected by using Monte Carlo Cell simulation. The use of Monte Carlo Cell simulation enable to try any probabilities that occur in diffusion process of filtration, reabsorption and secretion process in kidney. The result of this research shows that the fewer number of molecules, the slower the molecular displacement and also the fewer number of surface molecules, the slower the molecular displacements.
Karakterisasi Stabilitas Termal Kaolin Tatakan Kalimantan Selatan: Muhammad Saukani, Izzatus Sholehah, Saifullah Arief, Sadang Husein Muhammad Saukani Muhammad Saukani; Izzatus Sholehah Izzatus Sholehah; Saifullah Arief Saifullah Arief; Sadang Husein Sadang Husein
Jurnal Fisika dan Aplikasinya Vol 16 No 1 (2020): January 2020 Edition
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat, LPPM-ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j24604682.v16i1.4756

Abstract

This research is to characterize thermal stability of Kaolin from Tatakan, South Borneo. This research have been done by discussing the thermal treatment provided for kaolin clay and it used as a geopolymer base material. The FTIR, DSC-TGA, and XRD characterize the prepared kaolin clay. The DSC-TGA analysis shows that predehydroxylation occurred at temperatures of 50-120C. In addition, the dehydroxylation process started at 430-650C. However, the most stable condition is at 700-900C. Calcination temperature at kaolin clay was given at 650, 750, and 850C with dwell time of 1, 3, and 5 hours. After that, the calcination clay had characterized by FTIR and XRD. The FTIR results showed that all thermal treatments of metakaolin have formed. It was marked by the loss of the characteristic peak of kaolin with wavenumbers of 3600, and 1600 cm-1. Thermal treatment at a temperature of 750C with a holding time of 3 hours showed the largest amorphous phase formed, which was characterized by a decrease in the highest percentage of transmittance. The crystalline peak of kaolin XRD data at 750C shows that the peak of the crystalline phase of kaolinite was lost. It indicates that metakaolin has formed. Based on the results, it shows that the optimum thermal temperature that given to the kaolin Tatakan to create reactive metakaolin is 750C for 3 hours.
Analisis Periodisitas Gempa Bumi Diwilayah Kabupaten Lombok Barat Dengan Menggunakan Metode Statistik Dan Transformasi Wavelet: Fatimatuzzahra Fatimatuzzahra, Lalu A. Didik, Bahtiar Bahtiar Fatimatuzzahra Fatimatuzzahra Fatimatuzzahra Fatimatuzzahra; Lalu A. Didik Lalu A. Didik; Bahtiar Bahtiar
Jurnal Fisika dan Aplikasinya Vol 16 No 1 (2020): January 2020 Edition
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat, LPPM-ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j24604682.v16i1.5717

Abstract

This research is experimental research. Where the aim is to find out the first variotion of the a- vuale and the –b vuale, the second is to know the earthquake frequency whit the statistical method and wavelet transformation. And the third to analyze the results of the statistical method and wavelet transformation in the west Lombok regency. The method used to determine the earthquake periodicity in the study is the statistical method and the wavelet transformation. Statistical methods with Zmap sofwer are used to determine –a values, -b vuales, and earthquake periodicity. The wavelet transformation method uses skeweness, Box Cox transformation, and continyu wavelet transformation to calculate earthquake periodicity. This study uses data from BMKG and the National Earthquake International Center (NIEC) for the area between the epicenter of 1150.46-1160.20 BT, and 80.25 to 80.55 LS from 22 January 2014 to 30 October 2018. Statistical analysis produces parameters related to saismic conditions (seismic) and tectonic research area. The parameter consists of a vuale –a around 5,5 – 2 the –b vuale of 0,9 – 1,8. Both of these parameters shwo a rare earthquake and quite high stress on the plate. Periodicity based on the results of statistical analysis is around 40-60 years for magnitude 5,5 SR. with the wavelet transformation method, the periodecity of 30 years and 60 years is obtained for earthquakes with magnitude 5,5 SR. these results indicate that the two methods produce almost the same periodecity values.
Analisis Akurasi Sistem sensor DHT22 berbasis Arduino terhadap Thermohygrometer Standar: Fitri Puspasari, Trias Prima Satya, Unan Yusmaniar Oktiawati, Imam Fahrurrozi, Hristina Prisyanti Fitri Puspasari Fitri Puspasari; Trias Prima Satya Trias Prima Satya; Unan Yusmaniar Oktiawati Unan Yusmaniar Oktiawati; Imam Fahrurrozi Imam Fahrurrozi; Hristina Prisyanti Hristina Prisyanti
Jurnal Fisika dan Aplikasinya Vol 16 No 1 (2020): January 2020 Edition
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat, LPPM-ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j24604682.v16i1.5776

Abstract

The research of temperature and humidity comparison test using DHT22 sensor instrument based on Arduino Uno by Thermohigrometer. The background of this research problem is the development of increasingly advanced technology to facilitate measurement of temperature and humidity using DHT22 sensor based on Arduino. The aims of this tesearch was to knowing the sensor performance and comparing measurement result between DHT 22 sensor and standard thermohygrometer. The experiment was done using 5 times repeatability method at each room temperature variation. Comparison of the results of the average error value in the measurement of temperature and humidity between the DHT22 sensor with a standard Thermohygrometer obtained a value of 2.99% for humidity and -2.31% for temperature.
Perancangan PLTA Pico-Hydro menggunakan Tabung Hydrocyclone dan Turbin Kaplan melalui Solusi Numerik Runge-Kutta: Indah Permatasari, Abdul Hakim Prima Yuniarto Indah Permatasari Indah Permatasari; Abdul Hakim Prima Yuniarto Abdul Hakim Prima Yuniarto
Jurnal Fisika dan Aplikasinya Vol 16 No 1 (2020): January 2020 Edition
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat, LPPM-ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j24604682.v16i1.5782

Abstract

Designing of the Pico-hydrowater Power Plan which uses Kaplan turbine applies water flow within Hydrocyclone tube. Kaplan turbines can move with angular velocity following fluid velocity analyzing the movement converter system. Equation of movement formulated by applying Euler-Lagrange, therefore, generating a differential equation. The differential equation iterated by the Runge-Kutta Method which is one of the numerical solutions. The movement converter system consists of 5 wheels with 1st wheel spindle with 2nd wheel. The 2nd and 3rd wheels are interconnected and the 4th wheel is connected to the 5th wheel to generate electricity generation. The results obtained by the flow of water can rotate Kaplan turbines with a force of 50N. Maximum angular velocity of 5500 rad/s on the 5th wheel. The rotation speed of the wheels on the converter system will increase with time.
Studi Difusi Ca2+ Pada Sinapsis Menggunakan Metode Monte Carlo Cell: Ester Ratna Sari, Giner Maslebu, Adita Sutresno Ester Ratna Sari Ester Ratna Sari; Giner Maslebu Giner Maslebu; Adita Sutresno Adita Sutresno
Jurnal Fisika dan Aplikasinya Vol 16 No 1 (2020): January 2020 Edition
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat, LPPM-ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j24604682.v16i1.5076

Abstract

Diffusion process became one of the important mechanisms in the human body system, such as in the nervous system which is the Ca2+diffusion in the synapses. This research aims to study the Ca2+diffusion process if Gd inhibits Ca2+channel in pre-synapses. This study did not use Gd, but it was modeled with various numbers of Ca2+ channels. The less number of Ca2+opened channels described the more Gd which inhibited Ca2+ channels. The Monte Carlo Cell Method (MCell) was used in this study. The synapses model was made using Blender 2.76b; consisted of two compartments illustrated with two circles. The molecule in the outside pre-synapses compartment interacted with the molecular surface of the pre-synapses compartment and resulted in a molecule in pre-synapses. The result of the simulation process for the molecules reached half of the variations in the number of total area channels. The time needed being 0.65s, 0.34s, 0.24s, and 0.18s, from the smallest to the biggest respectively. The times needed for density variations from big to small were 0.337s, 0.362s, and 0.364s respectively. The number of the diffused molecules in the backward rate variation within the same time was 3928, 3626, 2037, and 529 molecules respectively.
Pengaruh Sudut Lubang pada Sonic Crystal terhadap Atenuasi dengan Bahan Pipa PVC: Gontjang Prajitno, Catharina Risti Indriyani, Suyatno Suyatno Gontjang Prajitno Gontjang Prajitno; Catharina Risti Indriyani Catharina Risti Indriyani; Suyatno Suyatno
Jurnal Fisika dan Aplikasinya Vol 16 No 1 (2020): January 2020 Edition
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat, LPPM-ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j24604682.v16i1.6211

Abstract

In this sonic crystal research, a 1.5 " diameter and 1.1 meters long PVC pipe was used. The panel was designed to have a 3-row square configuration with a filling ratio of 0.5, several pipes are 16 for each row and each pipe was given a hole (perforation) with a radius of holes are 6 mm. The study was conducted with variations in the number of holes 2, 4, 6 and 8 holes and the direction of the angle of the sound source with holes 0, 30, 90, 150, and 1800 . optimal, where the attenuation average is -10.66 dB, while the average attenuation at 00 is -4.0 dB, at 900 is -6.7 dB, at 1500 is -4.0 dB and at an angle of 1800 of -4.4 dB. Besides, the number of holes in this study affects the attenuation of sound and shifting the frequency of resonance, the more holes in the pipe, the greater the decrease in SPL.
Fabrikasi Modul Termoelektrik Generator (TEG) menggunakan Semikonduktor Tipe-p SbTe dan Tipe-n BiTe: Melania Suweni Muntini, Meylusari Maghfirotul Afiyanti, Faisal Fikri Oktaviantoni, Wanacaporn Namhongsab, Surasak Ruamrukb, Nattee Khottummee, Tosawat Seetawa Melania Suweni Muntini Melania Suweni Muntini; Meylusari Maghfirotul Afiyanti Meylusari Maghfirotul Afiyanti; Faisal Fikri Oktaviantoni Faisal Fikri Oktaviantoni; Wanacaporn Namhongsab Wanacaporn Namhongsab; Surasak Ruamrukb Surasak Ruamrukb; Kunchit Singsoogb Kunchit Singsoogb; Nattee Khottummee Nattee Khottummee; Tosawat Seetawan Tosawat Seetawan
Jurnal Fisika dan Aplikasinya Vol 16 No 1 (2020): January 2020 Edition
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat, LPPM-ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j24604682.v16i1.6216

Abstract

This research has been conducted to obtain the value of the best output voltage, output power and efficiency parameters from thermoelectric. Parameter values are obtained from testing and modeling the thermoelectric generator module. The thermoelectric generator module is composed of one pair of p-type SbTe and n-type BiTe p-semiconductors. The tests were done by used an open circuit (no load) and closed circuit (with a load) of 1. The test is done twice for the open circuit and three times for the closed circuit. Furthermore, TEG module was modeled using Ansys 19.2 Academic and Solidworks 2013. Modeling was conducted too in an open and closed circuit using parameter values as in the test. The results of testing and modeling of the highest measurement output voltage for open and closed circuits were obtained at temperatures of 100.770 C and 100.350 C, respectively. The maximum efficiency value is obtained 2.751% with a voltage of 19.2 mV.
Determinasi Kandungan pada Campuran Lemak Babi dengan Sapi menggunakan Spektroskopi Inframerah Dekat dan Partial Least Square Regression: Rizki E. Agustin, Nur A. Wibowo, dan Ferdy S. Rondonuwu Rizki E. Agustin Rizki E. Agustin; Nur A. Wibowo Nur A. Wibowo; Ferdy S. Rondonuwu Ferdy S. Rondonuwu
Jurnal Fisika dan Aplikasinya Vol 15 No 3 (2019): October 2019 Edition
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat, LPPM-ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j24604682.v15i3.4546

Abstract

Fat is one of important elements for human’s body. Therefore, fat is often added as one of main ingredients both in food industry activity and in cosmetic products. In this study, another technique was done to make an assumption about the content of fat by using Near Infrared Spectroscopy, NIRS and it was followed by Partial Least Square Regression, PLSR. This assumption was done by making 21 samples with the pork fat percentage toward the cow fat (w/w), which was 0,00, 0,05 until 1,00 with the interval of 0,05. This calibration model was developed using 11 samples of even concentrate and it was validated by using 10 samples of odd concentrate. The infra-red spectrum used in this study was around 4.000-10.000 cm-1. Prior data treatment covered smoothing, normalizing, the first, and the second derivative which were used to optimized the developed PLSR-NIRS prediction models. The second descending spectrum was used to increase the spectrum resolution before PLS analysis was done. Overall, the NIRS and PLSR techniques were sucessful in showing the percentage of the content in the mixted samples of pork and cow fat.
Uji Aktivitas Antibakteri dan Permeabilitas Membran Hibrid Nilon-TiO2: Wenny Maulina, Binti Istikomatul Isrofiyah, dan Supriyadi Wenny Maulina Wenny Maulina; Binti Istikomatul Isrofiyah Binti Istikomatul Isrofiyah; Supriyadi Supriyadi
Jurnal Fisika dan Aplikasinya Vol 15 No 3 (2019): October 2019 Edition
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat, LPPM-ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j24604682.v15i3.4625

Abstract

Hybrid membranes from nylon and titanium dioxide (TiO2) were prepared using hydrogen chloride (HCl) as precursor and acetyl aceton as chelating agent in the casting solution by phase inversion methods. The aim of this study was investigated antibacterial effect and permeation flux due to the impact of TiO2 contents on the hybrid membranes. Among all the prepared membranes, nylon-TiO2 hybrid membranes with mass fraction 70%:30%exhibited the best antibacterial effect. Meanwhile, the additions of TiO2 were raised water and sodium chloride (NaCl) permeability from 0 to 40%.

Page 54 of 61 | Total Record : 604

 52   53   54   55   56 

Filter by Year

2005 2025


Reset
Filter By Issues
All Issue Vol 21 No 3 (2025): Okt 2025 Edition Vol 21 No 2 (2025): June 2025 Edition Vol 21 No 1 (2025): January 2025 Edition Vol 21, No 3 (2025) Vol 21, No 2 (2025) Vol 21, No 1 (2025) Vol 20 No 3 (2024): October 2024 Edition Vol 20 No 2 (2024): June 2024 Edition Vol 20 No 1 (2024): January 2024 Edition Vol 20, No 3 (2024) Vol 20, No 2 (2024) Vol 20, No 1 (2024) Vol 19 No 3 (2023): October 2023 Edition Vol 19 No 2 (2023): June 2023 Edition Vol 19 No 1 (2023): January 2023 Edition Vol 19, No 3 (2023) Vol 19, No 2 (2023) Vol 19, No 1 (2023) Vol 18 No 3 (2022): October 2022 Edition Vol 18 No 2 (2022): Juni 2022 Edition Vol 18 No 1 (2022): January 2022 Edition Vol 18, No 3 (2022) Vol 18, No 2 (2022) Vol 18, No 1 (2022) Vol 17 No 3 (2021): October 2021 Edition Vol 17 No 2 (2021): June 2021 Edition Vol 17 No 1 (2021): January 2021 Edition Vol 17, No 3 (2021) Vol 17, No 2 (2021) Vol 17, No 1 (2021) Vol 16 No 3 (2020): October 2020 Edition Vol 16 No 2 (2020): June 2020 Edition Vol 16 No 1 (2020): January 2020 Edition Vol 16, No 3 (2020) Vol 16, No 2 (2020) Vol 16, No 1 (2020) Vol 15 No 3 (2019): October 2019 Edition Vol 15 No 2 (2019): June 2019 Edition Vol 15 No 1 (2019): January 2019 Edition Vol 15, No 3 (2019) Vol 15, No 2 (2019) Vol 15, No 1 (2019) Vol 15, No 1 (2019) Vol 14 No 3 (2018): October 2018 Edition Vol 14 No 2 (2018): June 2018 Edition Vol 14 No 1 (2018): January 2018 Edition Vol 14, No 3 (2018) Vol 14, No 2 (2018) Vol 14, No 1 (2018) Vol 13 No 3 (2017): October 2017 Edition Vol 13 No 2 (2017): June 2017 Edition Vol 13 No 1 (2017): January 2017 Edition Vol 13, No 3 (2017) Vol 13, No 2 (2017) Vol 13, No 1 (2017) Vol 12, No 3 (2016) Vol 12, No 2 (2016) Vol 12, No 1 (2016) Vol 11, No 3 (2015) Vol 11, No 2 (2015) Vol 11, No 1 (2015) Vol 10, No 3 (2014) Vol 10, No 2 (2014) Vol 10, No 1 (2014) Vol 9, No 3 (2013) Vol 9, No 2 (2013) Vol 9, No 1 (2013) Vol 9, No 1 (2013) Vol 8, No 2 (2012) Vol 8, No 1 (2012) Vol 7, No 2 (2011) Vol 7, No 1 (2011) Vol 6, No 2 (2010) Vol 6, No 1 (2010) Vol 5, No 2 (2009) Vol 5, No 1 (2009) Vol 4, No 2 (2008) Vol 4, No 1 (2008) Vol 3, No 2 (2007) Vol 3, No 1 (2007) Vol 2, No 2 (2006) Vol 2, No 2 (2006) Vol 2, No 1 (2006) Vol 1, No 2 (2005) Vol 1, No 1 (2005) More Issue