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All Journal Majalah Ilmiah Teknologi Elektro Jurnal Teknik ITS Jurnal Sains dan Seni ITS Jurnal Penelitian Fisika dan Aplikasinya (JPFA) IPTEK The Journal of Engineering IPTEK Journal of Proceedings Series JFA (Jurnal Fisika dan Aplikasinya) Proceeding SENDI_U Jurnal Geosaintek Jurnal Fisika FLUX Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Aplikasi Teknik Sipil Jurnal Inotera Jurnal Pensil : Pendidikan Teknik Sipil Prokons: Jurnal Teknik Sipil Jurnal Fisika Indonesia Journal of Marine-Earth Science and Technology Jurnal Rekayasa Geofisika Indonesia Jurnal Indonesia Sosial Teknologi Sewagati Majalah Ilmiah Teknologi Elektro JURNAL KELUARGA SEHAT SEJAHTERA Jurnal Geosaintek Geoid - Journal of Geodesy and Geomatics
Widya Utama
Departemen Teknik Geofisika Institut Teknologi Sepuluh Nopember
Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Nursing Physics Public Health Social Sciences Other

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UJI LOKASI HIPOSENTER MIKRO-EARTHQUAKE (MEQ) DENGAN METODE INVERSI SIMULATED ANNEALING PADA LAPANGAN PANAS BUMI “XX” Halim, Gian Ricardo; Utama, Widya; Mariyanto, Mariyanto
Jurnal Geosaintek Vol. 6 No. 2 (2020)
Publisher : Institut Teknologi Sepuluh Nopember

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Abstract

ANALISIS TINGKAT KECOCOKAN PENGGUNAAN BATU BATA PUTIH SEBAGAI BAHAN DASAR PEMBANGUNAN SELOKAN MENGGUNAKAN KONFIGURASI WENNER Purba, Theresia; Maulina, Dinda; Fikriyah, Vareyna Tsamrotul; Sholeh, Ahdi Awaludin; Bowo, Erstelle; Utama, Widya
Jurnal Geosaintek Vol. 7 No. 2 (2021)
Publisher : Institut Teknologi Sepuluh Nopember

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Abstract

PREDICTION OF CO2 GAS SATURATION DISTRIBUTION BASED ON DEEP LEARNING USING DEEP NEURAL NETWORK (DNN) ALGORITHM Komara, Eki; Tsaniyah, Zahrotuts; Utama, Widya
Jurnal Geosaintek Vol. 9 No. 2 (2023)
Publisher : Institut Teknologi Sepuluh Nopember

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Abstract

Multiphase flow analysis is essential for resolving subsurface flow issues in CO2 capture and storage (CCS) systems. Predicting the distribution of CO2 gas saturation is one example that is quite useful for evaluating multiphase flow. Multiphase flow simulation is typically performed using numerical simulations, such as the TOUGH2 simulator. Ordinary numerical simulations, on the other hand, have some limitations, such as high grid spatial resolution and significant processing costs. One option for estimating the distribution of CO2 gas saturation is to employ deep learning with specific algorithms. A deep neural network (DNN) is a highly effective deep learning approach. A deep neural network is a network structure made up of three interconnected layers: input, hidden, and output. DNN learns from the input data about the previously constructed architecture. As input, DNN requires a significant amount of data train. The trained DNN model is then used to automatically estimate the distribution of CO2 gas saturation. This algorithm is capable of dealing with complex data patterns, particularly gas saturation in multiphase flow issues. The reconstruction loss results revealed that the loss value lowers as the number of epochs grows. Furthermore, the model with 5 epochs and 0.001 regularization weight had the least error value 0.43. As a result, while this model is adequate for predicting the distribution of CO2 gas saturation, additional research is required to achieve more ideal outcomes.
Penerapan Multi Boezem Dalam Upaya Pengendalian Banjir di Kawasan Industri JIIPE Kabupaten Gresik Setiawan, Irfan Adiputra; Aziz, Siti Kamilia; Imaaduddiin, Muhammad Hafiizh; Utama, Widya
Jurnal Aplikasi Teknik Sipil Vol 23, No 3 (2025)
Publisher : Departemen Teknik Infrastruktur Sipil Institut Teknologi Sepuluh Nopember Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j2579-891X.v23i3.22652

Abstract

Alih fungsi lahan pada kawasan industri JIIPE seluas 1607 Ha menyebabkan meningkatnya koefisien limpasan dan debit banjir. Untuk itu, diperlukan infrastruktur pengendalian banjir yaitu dengan membangun boezem pada zona 1, zona 2, dan zona 3. Perhitungan debit banjir sungai digunakan HSS Nakayasu (Q25). Untuk debit banjir kawasan menggunakan metode Rasional (Q25). Dalam merencanakan dimensi serta pola operasi boezem didasarkan pada volume inflow, ketersediaan lahan, muka air Sungai Mireng dan Teluk Lamong. Hasil analisis didapatkan volume tampungan zona 1 sebesar 120.229,96 m3, zona 2 sebesar 606.145,29 m3, dan zona 3 sebesar 314.613,06 m3. Kapasitas pompa zona 1 3m3/detik, zona 2 10 m3/detik, dan zona 3 5 m3/detik.
INOVASI PEMBUATAN BANDREK INSTAN DENGAN MEMANFAATKAN POTENSI TANAMAN HERBAL DI DESA DALU SEPULUH A KECAMATAN TANJUNG MORAWA Putri, Umi Muti'ah; Frasiska, Rindi Ayu; Utama, Widya; Fatimah, Fatimah; Lubis, Azwani
JURNAL KELUARGA SEHAT SEJAHTERA Vol 19 No 2 (2021): JURNAL KELUARGA SEHAT SEJAHTERA
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jkss.v19i2.32420

Abstract

ABSTRACTIndonesia is a tropical country, this makes Indonesia rich in various plant species, including herbal plants such as lemongrass. Lemongrass with the Latin name Cymbopogon citratus thrives both in the highlands and lowlands. Lemongrass plants can be used in cooking spices, a mixture of essential oils and herbal drinks. There are still many people who use citronella conservatively, even though the use of lemongrass in a more modern way can provide more benefits and be able to reach a wider consumption market. Therefore, lemongrass processing innovation is needed in order to have high selling power, such as instant bandrek in powder form. This article aims to describe the manufacture of instant bandrek using lemongrass as the main herbal plant in Dalu Ten A Village, Tanjung Morawa. Keywords: Herbal Plants, Lemongrass, Instant Bandrek ABSTRAKIndonesia termasuk negara beriklim tropis, hal ini menjadikan Indonesia kaya akan aneka spesies tanaman tidak terkecuali tanaman herbal alam seperti serai. Serai dengan nama latin Cymbopogon citratus ini tumbuh subur baik pada dataran tinggi maupun rendah. Tanaman serai dapat digunakan dalam bumbu masakan, campuran essential oil maupun minuman herbal. Masih banyak masyarakat yang memanfaatkan serai wangi secara konservatif, padahal pemanfaatan serai secara lebih modern dapat memberi keuntungan lebih dan mampu menjangkau pasar konsumsi secara luas. Karena itu dibutuhkan inovasi pengolahan serai agar memiliki daya jual tinggi yaitu seperti bandrek instan dalam bentuk bubuk. Artikel ini bertujuan untuk mengemukakan pembuatan bandrek instan dengan memanfaatkan serai sebagai tanaman herbal utama di Desa Dalu Sepuluh A Tanjung Morawa.      Kata Kunci : Tanaman Herbal, Serai, Bandrek Instan
APPLICATION OF UPWARD CONTINUATION FILTER FOR GEOMAGNETIC DATA INTERPRETATION IN GONDANG, BOJONEGORO AREA Mustika Bohal, Yolanda; M, Mariyanto; Utama, Widya
Journal of Marine-Earth Science and Technology Vol. 1 No. 1 (2020): December
Publisher : Marine & Earth Science and Technology Research Center, DRPM, ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (703.644 KB) | DOI: 10.12962/j27745449.v1i1.152

Abstract

There are several manifestations of hot springs and mud pools in Gondang area, Bojonegoro, East Java, there were. This can be an indication of certain geological conditions. The description of these conditions can be done by measuring the geomagnetic method. A total geomagnetic anomaly has been generated through some geomagnetic values recorded in the region, which has been corrected using IGRF correction and diurnal correction. These steps were done to reduce external influences on the real value of the data. This research will use several variations of values in the Upward Continuation filter and one of them will be chosen to proceed as a model. Upward Continuation Filter is a process of transforming potential field data from a flat plane towards the higher plane. The purpose of this study is to compare the results of contour maps on several variations of the Upward Continuation value, to obtain the results of the separation of residual and regional anomalies using the Upward Continuation method, and to determine the value of the susceptibility distribution of inversion modeling in the Gondang region, Bojonegoro. Based on the results of data processing, it is known that the upward continuation value used is 100mdatum with a magnetic intensity value in the regional anomaly of 106.5 nT to 509.0. While the value of the residual anomaly is -232.1 nT to 159.4 nT. The 3D model was made using this residual anomaly which shows the low susceptibility distribution value in the range of -0.0298 to -0.0135 SI around the manifestation area, whereas the high susceptibility value has a value range of 0.0114 to 0.0466 SI interpreted as rock intrusion. Rock intrusion occurs within the area around the manifestation of mud pools.
CHARACTERISTIC OF SPENT BLEACHING EARTH SUBSTITUTION IN LIMESTONE AS LANDFILL MATERIAL Yulikasari, Andriyan; Meidi YT, Nagari; SA, Yusroni; Utama, Widya
Journal of Marine-Earth Science and Technology Vol. 1 No. 1 (2020): December
Publisher : Marine & Earth Science and Technology Research Center, DRPM, ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (336.122 KB) | DOI: 10.12962/j27745449.v1i1.157

Abstract

The substitution SBE in limestone can significantly improve the characteristics of limestone as a landfill material, especially in increasing the CBR hardness value without changing the limestone grain size distribution. This is because SBE acts as filler in the SBE-limestone mixture. The existence of SBE in the mixture does not change the value of the mixture plasticity index, because SBE and limestone are both not plastic. SBE material can be used as substitution material (matrix material) up to 30% by weight in the SBE-limestone mixture. The role of SBE as a filler becomes very important in mixed materials for non-limestone structural material requirements, especially for matrix material sizes from 0.4 to 10 mm or sand to gravel. Of course, more research is needed on the physical and mechanical characteristics of mixed materials due to the use of SBE as a filler in matrix multi grand size (sand to gravel).
THE EFFECT OF PICKING UNCERTAINTY WINDOW INTERVAL ON HYPOCENTER MICRO-EARTHQUAKE (MEQ) LOCATION USING GEIGER METHOD Utama, Widya; Ardhya Garini, Sherly; Sere Lansa, Fradana
Journal of Marine-Earth Science and Technology Vol. 3 No. 1 (2022): April
Publisher : Marine & Earth Science and Technology Research Center, DRPM, ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j27745449.v3i1.439

Abstract

Identification of the initial phase of the primary (P) waves at each seismic station is often inconsistent and implies the operator’s subjectivity, due to the high noise level. Errors in identifying the initial phase of the P waves can significantly bias the location of the hypocenter. In this study, the data used is one micro-earthquake (MEQ) event recorded by 8 seismic stations. At each seismic station, the P waves arrival time was measured repeatedly, to obtain the picking uncertainty time window interval of the P waves arrival time. The P waves arrival time data was processed using the Geiger method to obtain the MEQ hypocenter location. Based on the processing results, the determination of the arrival time of the P waves depends on the width of the time window and the amplitude scale used. The picking uncertainty time window interval will be narrower for arrival time observations with an enlarged time window and amplitude scale. Time window intervalin the range of 0,007-0,049 seconds, in this study significantly refracted the MEQ hypocenter location. The results of determining the location of the MEQ hypocenter using the Geiger method only produced two variants of the RMS error value with a difference of 0.001 seconds. However, the difference in the RMS error value is associated with a shift in the epicenter in the range of 2 – 21,1 meters and a shift in the elevation of the hypocenter in the range of 3-15 meters.
Analisis Nilai Impedansi Akustik P – Wave Pada Formasi Sarvak Menggunakan Persamaan Gassman & Model Dem Melalui Matlab Nisya Aviani; Kevin Daniel Munthe; Mei Devi Bun; Gilang Reyhan; Zulqaisi; Widya Utama
Jurnal Indonesia Sosial Teknologi Vol. 1 No. 05 (2020): Jurnal Indonesia Sosial Teknologi
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (997.828 KB) | DOI: 10.59141/jist.v1i05.46

Abstract

Iran merupakan suatu negara yang memiliki satuan statigrafi dari karbonat tebal di wilayah Zagros pesisir selatan Neotitis yang dikenal dengan formasi Sarvak yang cukup signifikan sebagai penghasil hidrokarbon. Tujuan penambahan parameter impedansi akustik pada penelitian ini agar didapatkan jenis litologi yang akurat dari setiap kedalaman lapisan karbonat di formasi Sarvak. Hasil tersebut dimodelkan dengan MATLAB agar dapat dianalisis secara sederhana karakteristik dari lapisan karbonat tersebut. Dalam pencarian hidrokarbon dibutuhkan indikator untuk mendeteksi letaknya dengan mengetahui nilai kecepatan gelombang seismik. Persamaan gassman umum digunakan dalam pencarian nilai kecepatan gelombang dengan berbagai asumsinya, namun salah satu asumsi model batuan diibaratkan homogen membuat metode ini tidak valid, sebab batuan penyusun karbonat anisotropik. Dengan metode alternatif lain, nilai kecepatan gelombang P dapat diketahui menggunakan metode DEM. Pada praktiknya, jenis litologi dari setiap lapisan karbonat tidak dapat ditemukan secara akurat hanya dengan mengetahui nilai impedansi akustik yang diklasifikasi pada tabel 1 dan tabel 2, sehingga dibutuhkan penelitian lanjutan untuk mengetahui karakterisasi batuan penyusun litologi menggunakan software AVO, data log, serta parameter pendukung lainnya seperti EEI (Extended Elastic Impedance).
Penerapan Koefisien Aliran untuk Mendukung Budidaya Tanaman Bernilai Ekonomi Tinggi (Studi Kasus: Kwanyar Bangkalan, Indonesia) Utama, Widya; Wihardjaka , Anicetus; Al Viandari, Nourma; Warnana, Dwa Desa; Lestari, Wien; Komara, Eki; Garini, Sherly Ardhya; Indriani, Rista Fitri; Putra, Dhea Pratama Novian; Varhana, Annisa R.
Jurnal Penelitian Pendidikan IPA Vol 9 No 9 (2023): September
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i9.3307

Abstract

The initial study that we carried out regarding the Kwanyar sub-district area, Bangkalan, East Java, shows the need to optimize land productivity and analyze the potential for farming to build the welfare of the people of the Kwanyar subdistrict. Preliminary spatial data analysis related to the topography as a result of Digital Elevation Model (DEM) data processing shows that: the Kwanyar sub-district is dominated by flat slopes (0-8°) compared to the northern region of the Kwanyar sub-district, while runoff water analysis shows a low flow coefficient (0- 0.25) which means that most of the Kwanyar area has low absorption capacity and a high potential for stagnant water. In addition, the Kwanyar region has a Regosol soil type. Regosol soil has a coarse texture and low organic matter, which makes it unable to properly hold water and minerals for plants, so it tends to be infertile. The initial study then became the basis for this research.
Co-Authors A F, Fachri Almawali Abigail, Nathasya Adhitama Rachman Adi Gunawan, Adi Adib Banuboro Agung Dimas Prabowo Darmawan Agung T. Nugroho Agung, B Harjo Agustin, Arin Dwi Ahdi Awaludin Sholeh Ahmad Widodo Aisyah, Maulidah Akbar, Firman Syaifuddin Al Viandari, Nourma Aldi, Radem Alifiansyah Faizal Amalia, Masruro Amelia Rosana Putri Amelia Rosana Putri Amien Widodo Amir, Moh Faisal Andriyan Yulikasari Andriyan Yulikasari Anggi, Arwin Anicetus Wihardjaka Anis Berry Annisa R. Varhana Anwar, Muhammad Khayrul ARDHYA GARINI, SHERLY Arif Darmawan Arif Darmawan Ariffiyanto, Wahyu Arin Dwi Agustin Arin Dwi Agustin Aripin, Pegri Rohmat Ariyanti, Nita Arphan, Frankstein Arphan, Frankstein Arwin Anggi Ayi Saeful Bahri Ayi Syaeful B. Aziz, Siti Kamilia B Harjo Agung Bagus Wibisono Bahri, Ayi Syaeful Bakruddin, Bakruddin Billy Dovan Yuspancana Bowo, Erstelle Budi Budi - Budiraharjo, Satrio Budy Wiryawan Bulkis Kanata Chemistra, Paul Cipta Ramadani Deni Irawan Dewi, Kiki Kartika Dewi, Kiki Kartika Dezulfakar, Hafidz Dhea Pratama Novian Putra Dinda Maulina Dwa Desa Warnana Dwa Desa Warnana Eki Komara Fachri Almawali A F Fadlillah Nur R Faizal, Alifiansyah Fajar, M. Haris Miftakhul Falah, Hanif Fajrul Fatahillah, Yosar fatimah Fatimah Fikriyah, Vareyna Tsamrotul Firdaus , Hana Sugiastu Firmansyah Saifuddin Frasiska, Rindi Ayu Fuadur K Garini, Sherly A. Garini, Sherly Ardhya Gigih Prakoso W Gigih Prakoso Wigantiyoko Gilang Reyhan Gilang Reyhan Gunawan, Adi Hafidz Dezulfakar Halim, Gian Ricardo Halim, Gian Ricardo Hamzah Abdullah Mubarak Hamzah Abdullah Mubarak Hana Sugiastu Firdaus Hari Purnomo Haris Purna W Harto, Moch. Fauzan Dwi Hartono, Karim Rahman Hasibatul Farida R Hasibatul Farida Rismayanti Heru Mirmanto Hibatullah, Ahmad Irfaan Hilyah, Anik Hutapea, Merry C. I Putu Khrisna Wijaya Ikmal Amrin Imaaduddiin, Muhammad Hafiizh Imaaduddiin, Muhammad Hafiizh Indri Silvia Dewi Indriani, Rista F. Indriani, Rista Fitri Insani, Alif N. F. Ira M. Anjasmara, Ira M. Jaka Rahadiansyah Jefrizal Sihombing Jefrizal Sihombing Jobit Parapat Jobit Parapat Juan Pandu Juan Pandu Gya Nur Rochman K, Fuadur Zakki Karim Rahman Hartono Kevin Daniel Munthe Kevin Daniel Munthe Kiki Kartika Dewi Komara, Eki Krishna Wijaya Kukuh Suprayogi Kukuh Suprayogi, Kukuh L, Putri Rida Lestari, Wien Lestyowati, Titis Linda Silvia, Linda Lita Novitasari Lubis, Azwani M Haris Miftakhul Fajar M Singgih Purwanto M Singgih Purwanto M Singgih Purwanto M, Mariyanto M. Iqbal Maulana M. Singgih Purwanto M. Singgih Purwanto M. Singgih Purwanto Mahardianti , Melisa Amalia Makky S. Jaya Makky S. Jaya, Makky S. Mariyanto Mariyanto Mariyono, M. Masruro Amalia Maulana Hutama Rahma Putra Maulana, M. Iqbal Maulidah Aisyah Maulidah Aisyah Maulidah Aisyah Maulina, Dinda Mei Devi Bun Mei Devi Bun Meidi YT, Nagari Melisa Amalia Mahardianti Moch. Fauzan Dwi Harto Muhammad Iqbal Muhammad Taufik MUHAMMAD TAUFIK Mustika Bohal, Yolanda Nahari Rasif Nathasya Abigail Nisya Aviani Nisya Aviani Nomensen M. H. Sitorus Nourma Al Viandari Novitasari, Lita Nur Isnaini Rahmaningtyas Palgunadi, Kadek H. Parapat, Jobit Paul Chemistra Paul Chemistra Pegri Aripin Pegri Rohmat Aripin Pratama, Dandi S. Purba, Theresia Purwanto, M. Singgih Purwanto, Mohammad Singgih Purwanto, Singgih Putra, Dhea P. N. Putra, Dhea Pratama Novian Putra, Risal Ardiansyah Putri Rida L Putri, Umi Muti'ah R, Fadlillah Nur Rachman, Adhitama Raden Aldi Rahadiansyah, Jaka Rahadinata, Tony Rahmaningtyas, Nur Isnaini Ramadhani, Annisa V. Rayhan Farisi Ramadhan Regian Erstelle Bowo Reksa Ikmaluhakim, Dihein Risal Ardiansyah Putra Rismayanti, Hasibatul Farida Rista Fitri Indriani Rista Fitri Indriani Robi Alfaq Abdillah SA, Yusroni Satrio Budiraharjo Sayyidatul Khoiridah Sere Lansa, Fradana Setiawan, Irfan Adiputra Sherly Ardhya Garini Sherly Ardhya Garini Sholeh, Ahdi Awaludin Sidi, Amor K. Simon Sadok Siregar, Simon Sadok Singgih Purwanto Sitorus, Nomensen Sitorus, Nomensen Sri Cahyo Wahyono Suminar Pratapa Supeno Surya, Triswan Madani Ade Surya, Triswan Madani Ade Surya, Triswan Mardani Ade Suto Suto - Syaeful Bahri Syaifuddin, Firman Syaifuddin, Firman Syifaurrohman, Yusuf Syifaurrohman, Yusuf Taufik , Muhammad Teti Zubaidah Theresia Romauli Purba Titah Anggraeni Putri Kinasih Tony Rahadinata Totok Parafianto Totok Wianto Tri Martha Kusuma Putra Tri Martha Kusuma Putra, Tri Martha Kusuma Tricahyo Agung Budi Harjo Triswan Mardani Ade Surya Triswan Mardani Ade Surya Tsaniyah, Zahrotuts Vahira Tri Kemalasari Vareyna Tsamrotul Fikriyah Varhana, Annisa R. Viandari, Nourma Al W, Haris Purna Wibisono, Bagus Widodo, Ahmad Wigantiyoko, Gigih Prakoso Wihardjaka , Anicetus Wihardjaka, Anicetus Wijaya, Krishna Yoga Satria I Yoga Satria Iswandaru Yosar Fatahillah Yosar Fatahillah Fatahillah Yulikasari, Andriyan Yuri Syahwirawan Yusri Prayitna Zulqaisi Zulqaisi