Article Per Year (5 Year)
p-Index From 2021 - 2026
1.383
P-Index
This Author published in this journals
All Journal Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Proceeding SENDI_U Jurnal Penelitian Pendidikan IPA (JPPIPA) Sewagati Jurnal Geosaintek
Lestari, Wien
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Education Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Physics Public Health Social Sciences Other

Published : 23 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 23 Documents
Search

 1   2   3 
EVALUASI KERUSAKAN JALAN PADA PERKERASAN ASPAL MENGGUNAKAN METODE RESISTIVITAS 2-DIMENSI DAN GROUND PENETRATING RADAR (GPR) DI JALAN TRENGGULI-KUDUS KM 39+850 Nur Jannah, Afni; Warnana, Dwa Desa; Lestari, Wien
Jurnal Geosaintek Vol. 10 No. 3 (2024)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25023659.v10i3.1915

Abstract

Jalan Raya Trengguli-Kudus yang terletak di jalur pantura (jalur pantai utara) beberapa kali mengalami kerusakan yang berulang, bahkan setelah diperbaiki. Jalan ini merupakan jalur utama mobilisasi dan distribusi logistik di Pulau Jawa sehingga kerusakan signifikan pada jalan ini akan memengaruhi kegiatan sosial ekonomi. Dengan tujuan untuk mengidentifikasi kondisi bawah permukaan dan distribusi kerusakan pada jalan ini, digunakan metode geofisika resistivitas 2D dan Ground Penetrating Radar (GPR). Konfigurasi yang digunakan dalam metode resistivitas adalah Wenner-Schlumberger. Data sekunder data bor dan hasil tes pit juga digunakan sebagai validasi dalam interpretasi. Penelitian dilakukan pada perkerasan aspal (flexible pavement) KM 39+850. Jumlah lintasan metode resistivitas terdiri dari dua lintasan dengan panjang 60 m dan sembilan lintasan untuk GPR. Lintasan GPR dari tujuh lintasan melintang sepanjang 11 m dengan jarak antar lintasan 10 m dan dua lintasan memanjang dengan panjang 60 m. Hasil dari penelitian ini menunjukkan lokasi penelitian berdasarkan data resistivitas yang divalidasi dengan bor terdiri dari litologi pasir dan kerikil, lanau kelempungan, lempung padat, dan lempung lunak. Beberapa jenis kerusakan yang teridentifikasi berdasarkan penampang GPR divalidasi dengan hasil tes pit dan kondisi di lapangan adalah rutting (alur) pada lapisan aspal, distorsi pada lapisan agregat kelas B hingga tanah asli, retak pada lapisan aspal – agregat kelas B, dan penurunan tanah (settlement) pada lapisan agregat kelas B – tanah asli. Adanya penurunan ini juga didukung oleh posisi lempung pada sayatan 3D resistivitas yang terlihat menurun ke arah selatan yang memperkuat dugaan adanya pergerakan material ke arah sungai.
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.
Effect of Geometry and Number of Seismic Stations on Micro-Earthquake (MEQ) Hypocenters in Geothermal Fields Utama, Widya; Garini, Sherly Ardhya; Hutapea, Merry C.; Putra, Dhea Pratama Novian; Warnana, Dwa Desa; Lestari, Wien
Jurnal Penelitian Pendidikan IPA Vol 9 No 10 (2023): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i10.3742

Abstract

Micro-earthquake (MEQ) distribution describes subsurface conditions that can contribute to monitoring the dynamics of geothermal reservoirs. Thus, the distribution of MEQ hypocenter locations with high accuracy becomes extremely important. Experiments were conducted with 3 variations of geometry and number of seismic stations, while Geiger and Coupled Velocity-Hypocenter methods were used to determine the location of MEQ. Experimental results show that in determining the location of the MEQ, the geometry and number of seismic stations played an important role. Increasing the number of stations with relatively long distances can result in less accurate locations of MEQ, error and bias in determining the location of MEQ will be greater when the azimuth gap value is greater. This is shown by the distribution of MEQ that are more spread out in variations 4A and 4B (4 seismic stations) compared to the distribution of MEQ hypocenters using data from 8 seismic stations. The azimuth gap variations of stations 4A and 4B are 283° and 267°, and 8 stations have a value of 222°. The large value of the azimuth gap is due to the distribution of stations only on one side so that there are horizontal angles that are not covered by seismic stations.
Co-Authors Adi Gunawan, Adi Afianto, M. Afif Ahmad Faqih Aisyah, Maulidah Al Viandari, Nourma Alifudin, Ridho Fahmi Amalia, Kharisma Amien Widodo Amir, Moh Faisal Anwar, Muhammad Khayrul Ardhityasari, Dara Felisia Ariffiyanto, Wahyu Arphan, Frankstein Arwananda, Alif Prabawa Bahri, Ayi Syaeful Banuboro, Adib Dita, Mesya Sabhna Adma Dwa Desa Warnana Dwiharto , Moch. Fauzan Fajar, M. Haris Miftakhul Garini, Sherly A. Garini, Sherly Ardhya Haidar, M. Wahdanadi Hartono, Karim Rahman Heru Mirmanto Hibatullah, Ahmad Irfaan Hilyah, Anik Husein, Alwi Hutapea, Merry C. Imaaduddiin, Muhammad Hafiizh Indriani, Rista F. Indriani, Rista Fitri Insani, Alif N. F. Ira M. Anjasmara, Ira M. Jannah, Afni Nur Juan Pandu Gya Nur Rochman Juliandro, Daniel Komara, Eki Lestyowati, Titis Linda Silvia, Linda Marianto, Farid Dasa Mariyanto Mariyanto Mariyono, M. Muhammad, Nur Rochman Muzakki, Yusril Noor, Muhammad Reza Shalahuddin Nur Jannah, Afni Palgunadi, Kadek H. Pratama, Dandi S. Putra P, Muhammad Fikri Putra, Dhea P. N. Putra, Dhea Pratama Novian Rahayu, Helda Kusuma Rahmaningtyas, Nur Isnaini Ramadhani, Annisa V. Reksa Ikmaluhakim, Dihein Riyantiyo, Nizar Dwi Sidi, Amor K. Surya, Triswan Madani Ade Syaifuddin, Firman Syifaurrohman, Yusuf Varhana, Annisa R. Viandari, Nourma Al Widya Utama Wihardjaka , Anicetus Wihardjaka, Anicetus Zarkasyi, Ahmad