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All Journal Jurnal Ilmu Dasar BERKALA SAINSTEK Jurnal Sains Dasar Scientific Journal of Informatics Jurnal Fisika FLUX Jurnal Inovasi dan Pembelajaran Fisika Jurnal Matematika Sains dan Teknologi INDONESIAN JOURNAL OF APPLIED PHYSICS Spektra: Jurnal Fisika dan Aplikasinya Jurnal Jaring SainTek

Supriyadi Supriyadi

Jurusan Fisika, Fakultas Matematika Dan Ilmu Pengetahuan Alam, Universitas Jember

Author-ID : 2976005

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

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IDENTIFIKASI JENIS TANAH PADA LAHAN PEMUKIMAN BERDASARKAN INTEGRASI PENGUKURAN GEOLISTRIK 3D DAN UJI INDEKS PROPERTIES TANAH DI PERUMAHAN ISTANA TIDAR REGENCY-JEMBER Supriyadi, Supriyadi; Priyantari, N; Sulistyani, D.P; Mayasari, W.A
Jurnal Fisika FLUX Vol 13, No 1 (2016): Jurnal Fisika FLUX Edisi Februari 2016
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v13i1.1634

Geoelectrical 3D resitivity measurement and soilâs index properties test has been conducted to determine soil type on settlement area Istana Tidar Regency, Jember. Resistivity measurement and soil sampling conducted at unoccupied area that have latitude (08Â°10â10,1â -08Â°10â11,9â) S and longitude (113Â°43â40,0â- 113Â°43â41,1â) E. Resistivity image of subsurface structure show that this settlement area was dominated by silty clay and sandysilt.To obtain more detailed information about the type of soil and its physical â mechanical properties, laboratory test done using soilâs index properties test. The result of soilâs index properties test show that this settlement area was dominated by silty clay have fine sand gradation and moderate plasticity.Â

METODE ELEMEN HINGGA UNTUK PENYELESAIAN PERSAMAAN SCHRÖDINGER ATOM HIDROGENIK Paken Pandiangan; Supriyadi Supriyadi; A Arkundato
Jurnal Matematika Sains dan Teknologi Vol. 7 No. 1 (2006)
Publisher : LPPM Universitas Terbuka

The research computed the energy levels and radial wave functions of the Hydrogen Atom. The method used for computation was FEM (finite element method). Using the variational method approach, FEM was applied to the action integral of Schrödinger equation. This lead to the eigenvalue equation in the form of global matrix equation. The results of computation were depended on boundary of the action integral of Schrödinger equation and number of elements. For boundary 0 - 100a0 and 100 elements, they were the realistic and best choice of computation to the closed analytic results. The computation of first five energy levels resulted E1 = -0.99917211 R∞, E2 = -0.24984445 R∞, E3 = -0.11105532 R∞, E4 = -0.06247405 R∞ and E5 = -0.03998598 R∞ where 1 R∞ = 13.6 eV. They had relative error under 0.1% to the analytic results.

Korelasi Data Gravitasi Satelit pada Daerah Panas Bumi Blawan-Ijen Novi Anivatul Karimah; Supriyadi Supriyadi; Agus Suprianto
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.v9i1.26431

Energi panas bumi merupakan energi sumber daya alam berupa air panas atau uap panas yang terbentuk melalui pemanasan di dalam bumi. Salah satu daerah yang memiliki potensi panas bumi adalah Blawan-Ijen. Metode yang sering digunakan untuk identifikasi panas bumi adalah metode gravitasi. Data yang digunakan pada penelitian ini adalah data gravitasi satelit yaitu BGI dan GGMplus. Data Bouguer BGI merupakan data anomali bouguer yang sudah siap diolah, sedangkan untuk data GGMplus masih merupakan data gravity disturbance. Data gravitasi GGMplus tergolong data gravitasi yang masih baru, sehingga diperlukan pembandingan dengan data gravitasi lainnya. Tujuan penelitian ini adalah mengetahui korelasi antara data gravitasi BGI dengan GGMplus. Proses korelasi dilakukan untuk mengetahui seberapa besar kemiripan antara data gravitasi GGMplus dengan BGI. Korelasi dilakukan dengan membuat digitasi kontur anomali gravitasi pada software Surfer dan menghitung nilai korelasi antar titik data gravitasi BGI dan GMplus. Hasil yang diperoleh menunjukkan bahwa ABL GGMplus dengan ABL BGI memiliki kemiripan dengan nilai korelasi sebesar 0,94. Kontur ABL GGMplus dan ABL BGI menunjukkan bahwa daerah pegunungan Ijen didominasi oleh nilai ABL rendah dengan rentang nilai 70 hingga 100 mGal. Pada kedua kontur ABL tersebut juga teramati kontras anomali gravitasi yang menunjukkan keberadaan patahan.

Eksplorasi Artefak Zaman Megalitikum Berdasarkan Citra Bawah Permukaan Menggunakan Metode Geolistrik Resistivitas di Dusun Kendal Desa Kamal Kec.Arjasa Kab. Jember Arik Irawati; Supriyadi Supriyadi; Nurul Priyantari
Jurnal Fisika FLUX Vol 17, No 1 (2020): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Megalithic age artifacts are spreaded in the Jember region, one of them in the Kendal hamlet adjacent to the Duplang site. There are still many artifacts buried in this location that need to be explored using the geoelectric resistivity method of the Wenner configuration. Data acquisition was carried out on 3 lines with length of 40 m. Base on 2D resistivity distribution image for all three lines, it was known that the subsurface structures were dominated by clay with resistivity value of (1.54 – 89.4) Ωm. Resistivity anomaly with value (197-581) Ωm, which are suspected of being andesite stones forming the artifacts are at a depth (0.25 -3.19) m on the three lines. The presumption existence of the artifacts is reinforced by the presence of kenong rock and menhirs outcrops on line 2.

Pengamatan Pergerakan Limbah Minyak Goreng Berdasarkan Nilai Resistivitasnya dengan Menggunakan Metode Crosshole Dipole-Dipole Supriyadi Supriyadi; Nurul Priyantari; Agus Supriyanto; Najibur Rohim
Jurnal Fisika FLUX Vol 15, No 2 (2018): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

The area around of Jember University has potential as a trading area because the majority of its citizens are immigrants. This potential is utilized by street food vendors located around the University of Jember. Most street vendors dispose of waste i.e used cooking oil directly around trading locations. One methode to determine waste seepage in the soil is to use the geoelectric method with crosshole dipole-dipole configuration. This research is a laboratory scale research. The sample of soil and waste of used cooking oil were taken from the location of street vendors around Jember University. Based on the research results, the soil resistivity value before being given the waste is 2.78 Ωm to 7.52 Ωm. While the value of soil resistivity after given the waste of used cooking oil ranged from 0.01 Ωm to 5.15 Ωm. Observations from the first day to the seventh day indicate that the movement of waste used cooking oil occurs vertically due to gravity and in all directions due to capillarity.

IDENTIFIKASI JENIS TANAH PADA LAHAN PEMUKIMAN BERDASARKAN INTEGRASI PENGUKURAN GEOLISTRIK 3D DAN UJI INDEKS PROPERTIES TANAH DI PERUMAHAN ISTANA TIDAR REGENCY-JEMBER Supriyadi Supriyadi; N Priyantari; D.P Sulistyani; W.A Mayasari
Jurnal Fisika FLUX Vol 13, No 1 (2016): Jurnal Fisika FLUX Edisi Februari 2016
Publisher : Lambung Mangkurat University Press

Geoelectrical 3D resitivity measurement and soil’s index properties test has been conducted to determine soil type on settlement area Istana Tidar Regency, Jember. Resistivity measurement and soil sampling conducted at unoccupied area that have latitude (08°10’10,1” -08°10’11,9”) S and longitude (113°43’40,0”- 113°43’41,1”) E. Resistivity image of subsurface structure show that this settlement area was dominated by silty clay and sandysilt.To obtain more detailed information about the type of soil and its physical – mechanical properties, laboratory test done using soil’s index properties test. The result of soil’s index properties test show that this settlement area was dominated by silty clay have fine sand gradation and moderate plasticity.

PEMETAAN MAAR DAN CINDER CONE WILAYAH GUNUNG LAMONGAN MENGGUNAKAN ANALISIS POWER SPECTRUMDAN UPWARD CONTINUATION Supriyadi Supriyadi; Toviatun Toviatun; Agus Suprianto
JURNAL INOVASI DAN PEMBELAJARAN FISIKA Vol 7, No 2 (2020): JURNAL INOVASI DAN PEMBELAJARAN FISIKA
Publisher : Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jipf.v7i2.12010

The gravity method is a method often used in geophysical exploration. According to recent technological developments, data acquisition has evolved by utilizing satellite data and modeling, one of which is GGMplus gravity data. In this study, GGMplus gravity data will be used to map the distribution of maar and cinder cones in the Gunung Lamongan Region. To obtain the optimal local anomaly results of gravity data, a combination of power spectrum analysis and upward continuation filtering methods is carried out.ABL data contours are sliced, gravity anomaly data from each slicing path is processed using FFT so that the wave number and power spectrum values are obtained as well as the relationship graph between the two.The power spectrum analysis method provides window width data that is used as information on determining the height of the upward continuation method.The ABL contour map in the Gunung Lamongan region shows a range of gravitational field values between -20 mGal to 50 mGal. High anomaly values indicate the existence of Mount Lamongan which is dominated by intrusive rocks. The subsurface structure of the Gunung Lamongan region is thought to consist of tuff, lava, volcanic breccia, and lava. The existence of maar and cinder cones in the Gunung Lamongan area can be mapped from the contours of the local anomaly. Local anomaly contours are obtained from ABL data by connecting the two methods of filtering i.e power spectrum analysis and upward continuation. There are 10 cinder cones and 8 maar visible on the local anomaly contour map.

Upward Continuation of Subsurface Anomalies Utilizing Magnetic Data in The Bedadung Watershed, Jember City Yudhistira Adi Nugraha; Puguh Hiskiawan; Supriyadi Supriyadi
Jurnal ILMU DASAR Vol 16 No 2 (2015)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Magnetic method is a geophysics method to determine the kind of subsurface material in certain depth by identifying the magnetic characteristics of rock based on the value of magnetic suspetibility. The data analysis described the subsurface anomaly using upward continuation filter. It separated local anomaly and regional anomaly by lifting research area in certain elevation. The raw data research was the total of magnetics data around Bedadung watershed, Jember. It was proceeded to obtaine magnetic anomaly curve on 5 line in contour map. It was digitalized and use as data input of magpick and upward continuation filter program. Upward continuation program was conducted using variation of area elevation in each track from 1 m up to 30 m. magnetic anomaly from this program is compared to magpick result showed that the magnetic anomaly curve on each line have good suitability with the accuracy 0,93%. Therefore, the continuation program become the alternative in magnetic data processing.

Karakteristik Sensor Kapasitif Pelat Sejajar Dalam Aplikasinya Sebagai Instrumen Pengukur Curah Hujan Berbasis Arduino Uno Bowo Eko Cahyono; Supriyadi Supriyadi; Muhammad Ainur Rofiq
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 7, No 2 (2017): October
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v7i2.14248

Penelitian ini bertujuan untuk mempelajari karakteristik dari kapasitor pelat sejajar sebagai sensor dalam alat ukur curah hujan berbasis Arduino dengan tampilan LCD. Alat ini mampu membaca dan menampilan tegangan keluaran, nilai kapasitansi, konstanta dielektrik dan tinggi level curah hujan akibat adanya perubahan komposisi bahan dielektrik di antara pelat kapasitor. Sistem yang didesain telah diuji dalam 3 tahapan yaitu, uji akurasi pembacaan nilai kapasitansi, nilai ketinggian air, dan pengujian di lapangan. Nilai-nilai kapasitansi sensor yang ditampilkan dalam LCD dibandingkan dengan nilai kapasitansi sensor yang diukur dengan menggunkan kapasitansi meter CM-3300A. Dalam pengujian ini didapatkan hasil bahwa nilai-nilai kapasitansi yang diukur dengan dua etode yang berbeda tersebut saling berdekatan. Selisih tertinggi adalah 20,97pF pada ketinggian 15cm. Tinggi level air yang terbaca dibandingkan dengan pembacaan menggunakan penggaris dan hasilnya menunjukkan bahwa selisih terkecil yaitu 0,19 mm dan selisih terbesar 4,93 mm. Selanjutnya berdasarkan pengujian langsung di lapangan didapatkan selisih yang tidak terlalu jauh, dengan rata-rata selisih yang diperoleh kurang dari 5 mm. Secara umum, sistem alat ukur curah hujan telah menunjukkan kinerja yang bagus saat dilakukan pengujian dan diaplikasikan pada kondisi hujan secara langsung di lapangan. Hasil tersebut telah menunjukkan bahwa sistem alat ukur curh hujan telah sesuai dengan apa yang diharapkan.

Temperatur Curie dan Medan Koersivitas Material Co0,8Ni0,2 dalam Struktur Random Alloy dan Double Layers Lutfi Rohman; Suci Novitasari; Supriyadi Supriyadi
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 10, No 01 (2020): April
Publisher : Department of Physics, Sebelas Maret University

Material Kobalt Nikel (CoNi) merupakan paduan penting karena memiliki sifat kemagnetan yang baik diantaranya yaitu temperatur curie dan koersivitas yang tinggi. komposisi, struktur alloy dan ukuran sisi kubus bahan berpengaruh terhadap temperatur Curie dan koersivitas. Simulasi mikromagnetik dilakukan pada material Co0,8Ni0,2 dengan struktur random alloy dan double layers untuk menentukan nilai temperatur Curie dan analisis kurva histerisis. Simulasi material Co0,8Ni0,2 dilakukan menggunakan software Vampire dengan variasi ukuran sisi kubus yang digunakan yaitu 5 nm, 8 nm, 10 nm, 12 nm, dan 15 nm. Hasil simulasi menunjukkan nilai temperatur Curie semakin meningkat dengan bertambahnya ukuran sisi kubus. Pada material Co0,8Ni0,2 double layers diperoleh nilai temperatur Curie lebih tinggi dari pada material Co0,8Ni0,2 random alloy. Karakteristik kurva histerisis pada material Co0,8Ni0,2 random alloy dan double layers menunjukkan bahwa nilai koersivitas meningkat seiring bertambahnya ukuran sisi kubus. Namun pada material Co0,8Ni0,2 random alloy ketika ukuran bahan yang diberikan 12 nm dan 15 nm nilai medan koersivitasnya semakin menurun, dibandingkan saat ukuran 10 nm. Pada ukuran sisi kubus 10 nm dikatakan sebagai ukuran terbaik dari material Co0,8Ni0,2 random alloy ditinjau dari nilai medan koersivitas yang besar.

Co-Authors A Arkundato Agus Subekti Agus Suprianto Agus Supriyanto Anggara, Andrian Dwi Ari Setiawan Arik Irawati Aryono Adhi, Aryono Cahyono, Bowo Eko D.P Sulistyani Enjang Jaenal Mustopa Lutfi Rohman Mayasari, W.A Muhammad Ainur Rofiq Muhammad Syukron Ali Najibur Rohim Novi Anivatul Karimah Nurul Priyantari Paken Pandiangan Priyantari, N Puguh Hiskiawan Suci Novitasari Sulistyani, D.P Suryanto, Wiwit Toviatun Toviatun W.A Mayasari Wahyu Srigutomo Wahyudi Wahyudi Yudhistira Adi Nugraha

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