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All Journal Jurnal Neutrino : jurnal fisika dan aplikasinya JURNAL ILMIAH PENDIDIKAN FISIKA AL BIRUNI Communications in Science and Technology Angkasa: Jurnal Ilmiah Bidang Teknologi INAQUE: Journal of Industrial & Quality Engineering
Urip Nurwijayanto Prabowo, Urip Nurwijayanto
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Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering Physics

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EVALUASI KERENTANAN GEDUNG REKTORAT STTNAS TERHADAP GEMPA BUMI BERDASARKAN ANALISIS MIKROTREMOR Prastowo, Rizqi; Prabowo, Urip Nurwijayanto
Angkasa: Jurnal Ilmiah Bidang Teknologi Vol 9, No 1 (2017): Mei
Publisher : Sekolah Tinggi Teknologi Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (242.247 KB)

Abstract

STTNAS building is a five floor building that located in the city o f Yogyakarta which is an area with a high intensity earthquake occurrence. The purpose o f this study is (1) determine the value o f the natural frequencies o f the building, (2) determine the index o f the resonance o f the building and (3) the vulnerability o f buildings to earthquakes. Research will be done by measuring the microtremor wave o f building STTNAS then analyzed using Spectral Floor Ratio (FSR). The analysis result is then compared with the classification defined in ISO 2002 on building resilience planning procedures earthquake. Fekuensi natural on the east-west component is 1.64 Hz and the north-south component is 1.644 Hz that is in conformity with the ISO 2002. Resonance Index o f building STTNAS is ranging from 31.00081 to 35.883% thus including the low category resonance during an earthquake. Building of STTNAS vulnerability index ranges are between 103,670.6191 to 82526.5357 with the highest value found on the 4th floor.
ANALISIS KERENTANAN LONGSOR PADA LERENG BERBASIS GRAFIK PARTICLE MOTION Wiranata, Ferdinandus Edwin; Anggoro, Paulus Wisnu; Prabowo, Urip Nurwijayanto
Inaque : Journal of Industrial and Quality Engineering Vol 8 No 1 (2020)
Publisher : Teknik Industri Unikom

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2422.741 KB) | DOI: 10.34010/iqe.v8i1.2717

Abstract

Tampilan visual getaran tanah atau bangunan dapat dilihat secara langsung dengan perangkat mikrotremor. Perangkat mikrotremor terdiri dari perangkat lunak DATAQ, data logger dan seismometer yang dapat menampilkan bentuk sinyal secara langsung. Sistem seperti ini banyak digunakan dalam memonitor kejadian bencana. Pada bidang kebencanaan longsor akibat gempabumi, analisis kerentanan dilakukan setelah melakukan pengukuran melalui proses pengolahan data dengan perangkat lunak Geopsy. Beberapa fitur dalam Geopsy seperti H/V, SPAC, dan Damping digunakan untuk memberikan gambaran kuantitatif, sementara Particle Motion memberikan tampilan visual arah gerak partikel. Rentang frekuensi yang digunakan pada penelitian ini adalah1 – 15 Hz. Hasil penelitian menunjukkan arah gerak partikel di area barat lereng didominasi oleh arah barat laut-tenggara (NW-SE) sementara di timur lereng didominasi oleh pergerakan partikel ke segala arah. Pola pergerakan partikel di selatan lereng adalah barat laut-tenggara (NW-SE), timur laut-barat daya (NE-SW), dan timur-barat (E-W), sedangkan pergerakan partikel dalam arah vertikal didominasi oleh arah gerak kuadaran II-kuadran IV Kata Kunci: particle motion, mikrotremor, lereng, frekuensi
CROSS SECTION OF ELECTRON ANTINEUTRINO INTERACTION WITH 40AR AND 84KR AND ITS RELEVANCE TO GEONEUTRINO DETECTION Ferdiyan, Akmal; Prabowo, Urip Nurwijayanto
Jurnal Neutrino:Jurnal Fisika dan Aplikasinya Vol 13, No 1 (2020): October
Publisher : Department of Physics, Maulana Malik Ibrahim State Islamic University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18860/neu.v13i1.10602

Abstract

Neutrino can carry information from places that cannot be reached by the usual detection mechanism because it has a very weak interaction with matter. This can be utilized to study the heat flow process inside the earth by using information carried by geoneutrino (electron antineutrino). In this sense, it is important to know the characteristics of neutrino interaction with materials. In this study, the cross-section calculation of the electron antineutrino interaction with Ar-40 and Kr-84 was carried out using computational methods with the help of GENIE software. In the energy range of 0-10 MeV, the dominant interaction between the two materials is the interaction of QES NC and MEC types with an energy threshold of 5,09 MeV. Both Ar-40 and Kr-84 cannot be used as a scintillator material for geoneutrino detection because in the energy range 0-4,4 MeV the cross-sectional value of the CC interaction  is 0.
Physical modeling of magma chamber of slamet volcano by means of satellite gravimetric data Sehah, Sehah; Prabowo, Urip Nurwijayanto; Raharjo, Sukmaji Anom; Ikhwana, Aina Zahra
Communications in Science and Technology Vol 7 No 2 (2022)
Publisher : Komunitas Ilmuwan dan Profesional Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21924/cst.7.2.2022.1001

Abstract

Slamet Volcano (3,432 m) is the highest volcano in Central Java, Indonesia, with a weak explosive type of eruption compared to other active volcanoes. Designing the magma chamber model may help reveal the characteristics of Slamet Volcano. The modelling uses the gravimetric satellite data from GGMplus, which is best in spatial resolution compared to other satellite data, i.e. 220 m. Data processing begins with Bouguer correction and terrain correction and has resulted in complete Bouguer anomalies data, with values ranging from 11.068 – 117.451 mGal. Further, residual Bouguer anomalies data were obtained after data reduction to the horizontal surface and removal of regional anomalies data, to obtain values ranging from -67.569 – 38.808 mGal. The residual anomaly contour map shows the lowest anomalous value is under the volcanic cone at positions of 109.21967° E and 7.24281° S which is estimated to be the location of the magma chamber of Slamet Volcano. However, the inversion modeling resulting from the residual Bouguer anomalies data shows that the magma chamber of Slamet Volcano can be observed clearly at positions of 109.22053° E and 7.24719° S. The location of the magma chamber is not perfectly vertical under the volcanic cone but has a slight slope. The obtained model of the magma chamber has a relatively small volume and shallow depth, i.e. about 1 – 4 km. The obtained physical parameters of the magma chamber impact the characteristics of the eruption of Slamet Volcano which tend to be weak explosive.
Mathematical Model Simulation of Non-Linear Equations using MATLAB: Specific Volume of Gas with Van der Waals Equation Amalia, Ayu Fitri; Budhi, Widodo; Melati, Asih; Prabowo, Urip Nurwijayanto
Jurnal Ilmiah Pendidikan Fisika Al-Biruni Vol 11 No 2 (2022): Jurnal Ilmiah Pendidikan Fisika Al-Biruni
Publisher : Universitas Islam Negeri Raden Intan Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/jipfalbiruni.v11i2.12546

Abstract

Computational physics is concerned with the application of numerical methods in solving physical problems. The van der Waals gas model is one of the most common non-linear models. This study simulated a mathematical model of a non-linear equation using MatLab for the case of the specific volume of gas in the equation of the state of van der Waals. This study aimed to determine the molar volume and compressibility factor, as well as describe the relationship between the compressibility factor and the reduced pressure. The method of the study is experimental. The independent variables are the reduced pressure and temperature values. The dependent variable is the determination of the value of the molar volume (V) and the compressibility factor (Z). The control variable, in the form of a function used in solving this case, is based on van der Waals equation with the gas used is ammonia. The fzero command can be used to solve f(x)=0 with a single variable. This program that has been running successfully can show various predictions in the form of reduction pressure, thus obtaining the values of the molar volume and compressibility factor using the ideal gas equation. There is a deviation in ammonia gas, the Z>1 at high reduction pressures and Z<1 at medium pressures. This study can provide contributions and benefits in the form of material enrichment of thermodynamics to understand how real gases behave. The ideal gas equation can be modified into the van der Waals equation.
Co-Authors Asih Melati Ayu Fitri Amalia, Ayu Fitri Budhi, Widodo Ferdiyan, Akmal Ikhwana, Aina Zahra Paulus Wisnu Anggoro Rizqi Prastowo Sehah Sehah Sukmaji Anom Raharjo Wiranata, Ferdinandus Edwin