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All Journal BERKALA FISIKA Journal of Mathematical and Fundamental Sciences Jurnal Fisika Unand Jurnal Ilmiah Dinamika Rekayasa (DINAREK) Jurnal Fisika FLUX Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Jurnal Teori dan Aplikasi Fisika Jurnal Geofisika Abdimas: Jurnal Pengabdian Masyarakat Universitas Merdeka Malang Jurnal Teras Fisika : Teori, Modeling, dan Aplikasi Fisika Darma Sabha Cendekia Jurnal Ilmu Fisika dan Terapannya (JIFTA) Jurnal Geologi dan Sumberdaya Mineral (Journal of Geology and Mineral Resources)
Zaroh Irayani
Fakultas Matematika Dan Ilmu Pengetahuan Alam, Universitas Jenderal Soedirman
Agriculture, Biological Sciences & Forestry Humanities Astronomy Chemistry Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Physics

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WORKSHOP METODE GEOLISTRIK RESISTIVITAS UNTUK EKSPLORASI AIR TANAH DI DESA PLANA KECAMATAN SOMAGEDE KAB. BANYUMAS ., Sugito; ., Hartono; Irayani, Zaroh; Abdullatif, R. Farzand
Jurnal Pengabdian Masyarakat Universitas Merdeka Malang Vol 4, No 1: JUNI 2019
Publisher : JURNAL PENGABDIAN KEPADA MASYARAKAT

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26905/abdimas.v4i1.3234

Abstract

Telah dilakukan workshop dalam bentuk kegiatan pembelajaran dan pelatihan metode geolistrik resistivitas untuk eksplorasi air tanah di Desa Plana Kec. Somagede Kab. Banyumas. Tujuan kegiatan adalah meningkatkan pemahaman masyarakat tentang jenis dan pembentukan akuifer, menentukan struktur perlapisan batuan bawah permukaan dan mengidentifikasi akuifer berdasarkan hasil survei geolistrik geolistrik resistivitas konfigurasi Schlumberger. Untuk mencapai tujuan penulis menggunakan metode ceramah dan diskusi interaktif serta workshop metode geolistrik resistivitas. Berdasarkan kegiatan workshop atau pembelajaran dan pelatihan metode geolistrik resistivitas untuk eksplorasi sumber air tanah dapat disimpulkan tingkat antusiasme dan partisipasi peserta workshop sangat tinggi, yaitu rata-rata lebih dari 95 %, struktur perlapisan batuan di Desa Plana berdasarkan nilai resistivitas secara umum terdiri dari tanah penutup (top soil), lempung pasiran, pasir lempungan dan pasir. Sedabgkan jenis akuifer yang telah teridentifkasi titik sounding Sch-1 pada kedalaman ? 6,61 m adalah akuifer bebas, titik Sch-2 pada kedalaman ? 5,98 m,  akuifer bebas, dan di titik Sch-3 juga akuifer bebas pada kedalaman 15,03 m s/d 20,04 m dan pada kedalaman ? 25,13 m. DOI: https://doi.org/10.26905/abdimas.v4i1.3234
Investigasi Bidang Gelincir Tanah Longsor Menggunakan Metode Geolistrik Tahanan Jenis di Desa Kebarongan Kec. Kemranjen Kab. Banyumas Sugito, Sugito; Irayani, Zaroh; Permana Jati, Indra
BERKALA FISIKA Vol 13, No 2 (2010): Berkala Fisika
Publisher : BERKALA FISIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (319.679 KB)

Abstract

Investigation of landslide slip surface using geoelectrical resistivity method has been conducted at Kebarongan Village, Kemranjen District, Banyumas Regency. Data acquisition by means Schlumberger and Wenner configuration.  Data processing and interpretation were using Progress version 3.0 and Res2Dinv version 3.54 softwares.  The output of Progress software were depth, number of layers, and values of rock resistivity.  Mean while the output of Res2Dinv were resistivity section, RMS, and depth of rock layers.  The interpretation result showed that at Kebarongan village lithology consist of four layers i.e. top soil, sandy clay, wet clay and sandy clay.  Slip surface is wet clay with depth of 10.31 until 14.21 m.  The slip surface orientation is same of slope area that is to south and the type of landslide is translational.      Keywords: geoelectrical resistivity, landslide, slip surface, Kebarongan
Pemanfaatan Teknik Lissajous untuk Mengetahui Korelasi antara Kandungan Air terhadap Sifat Dielektrik Tanah (Studi Kasus: Sampel Tanah Permukaan di Sekitar Kota Purwokerto) Sehah, Sehah; Nur Aziz, Abdullah; Irayani, Zaroh
BERKALA FISIKA Vol 12, No 3 (2009): Berkala Fisika
Publisher : BERKALA FISIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (329.833 KB)

Abstract

The equipment has been designed to measure the dielectric properties of soil samples with lissajous technique in Basic Physics Laboratory, Study Program of Physics, Faculty of Science and Engineering, University of Jenderal Sudirman, Purwokerto. The equipment has been used to measure the dielectric constant of 19 soil samples taken from several locations in area of Purwokerto city and its surrounding, at a frequency of 100 kHz. The measurement has been conducted on soil samples with the variation of soil mass water content. The results obtained indicate, the existence of a correlation between the dielectric constant of soil samples to the soil water mass content (h) which can be expressed with two equations; dielectric permittivity e = 0.3176 h-2.5555 with a correlation coefficient R2 = 0.9538, and dielectric loss equation e'= 0.00003 h -5.3336 with a correlation coefficient R2 = 0.9513.
Investigasi Bidang Gelincir Tanah Longsor Dengan Metode Tahanan Jenis Dan Pengujian Sifat Plastisitas Tanah Di Bukit Pawinihan Desa Sijeruk, Kecamatan Banjarmangu, Kabupaten Banjarnegara Zaroh Irayani; Indra Permanajati; Aris Haryadi; Wihantoro Wihantoro; Abdullah Nur Azis
Dinamika Rekayasa Vol 12, No 2 (2016): Jurnal Ilmiah Dinamika Rekayasa - Agustus 2016
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.dr.2016.12.2.145

Abstract

Investigasi bidang gelincir zona rawan longsor di sekitr lokasi mahkota longsor Bukit Pawinihan Sijeruk Banjarnegara telah dilakukan dengan menggunakan metode geolistrik tahanan jenis metode Wenner. Uji sifat plastisitas tanah penyusun di lokasi penelitian dilakukan pada tingkat pelapukan yang berbeda. Tujuannya untuk menentukan kedalaman, jenis pelapukan dan sifat dari bidang gelincir. Hasil pemodelan resistivitas 2D menunjukkan bahwa bidang gelincir berada pada kedalaman 6-8 meter berupa batu breksi lapuk (30-118 Ωm). Batuan ini merupakan batuan dengan tingkat pelapukan 3 dan bersifat kohesif. Nilai indeks plastisitasnya adalah 8,27.
Investigasi Intrusi Air Asin di Kawasan Prospek Bijih Besi Pesisir Nusawungu Kabupaten Cilacap Jawa Tengah Berdasarkan Profil Resistivitas-2D Sehah Sehah; Zaroh Irayani; Sukma Sewiji
Jurnal Fisika FLUX Vol 15, No 2 (2018): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (159.232 KB) | DOI: 10.20527/flux.v15i2.5530

Abstract

ABSTRACT−Investigation of saltwater intrusion in Nusawungu Coastal area of Cilacap Regency based on the 2D-resistivity data has been done in April – Juni 2018. The resistivity data acquisition has been carried out using Wenner's configuration on four locations covering of the NWT-01, NWT-02, NWT-03, and NWT-04 with a length as 200 meters. The obtained result is the 2D-resistivity profile of subsurface rocks for each trajectory with a depth of about 30 meters. The rock resistivity values which obtained for each trajectory consists of the NWT-01 is 2.30 – 103.00 Ωm; the NWT-02 is 3.65 – 54.30 Ωm; the NWT-03 is 0.96 – 43.20 Ωm; and the NWT-04 is 2.33 – 70.80 Ωm. Based on the interpretation results, the deep aquifer in each trajectory with a resistivity value of 0.96 - 6.81 Ωm are estimated to be intruded by saltwater, while the shallow aquifers have not been significantly intruded by saltwater. Based on the testing results of the electrical conductivity (DHL) of several water samples taken from some wells around the NWT-01 to NWT-04 trajectory, it is known that all of the water is freshwater. Some well water samples have a rather high electrical conductivity value, such as the well A on the NWT-01 with a value of 740.0 μSi/cm and the well C on the NWT-03 with a value of 894.67 μSi/cm. This is thought to be due to the relatively high salt mineral content in the aquifer rocks.
Designing Aquifer Model for the Banks of the Serayu River, Sokawera, Somagede, Banyumas, Indonesia by Means of 1D-Electrical Resistivity Data Sehah; Hartono; Zaroh Irayani; Urip Nurwijayanto Prabowo
Journal of Mathematical and Fundamental Sciences Vol. 53 No. 3 (2021)
Publisher : Institute for Research and Community Services (LPPM) ITB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/j.math.fund.sci.2021.53.3.1

Abstract

A geoelectric survey using the 1D-electrical resistivity method was applied to design a groundwater aquifer model for the banks of the Serayu River in Sokawera Village, Somagede District, Banyumas Regency, Indonesia. The aim of this research was to identify the characteristics of aquifers in the research area based on resistivity log data. Acquisition, modeling, and interpretation of resistivity data were carried out and the results were lithological logs at seven sounding points. Correlation between the lithological logs resulted in a hydrostratigraphic model. This model is composed of several hydrological units, i.e. shallow aquifer, aquitard, and deep aquifer. The shallow aquifers are composed of sandy clay (10.81-18.21 Wm) and clayey sand (3.04-7.43 Wm) with a depth of groundwater from the water table to 27.51 m. The deep aquifers are composed of sandstone with variation of porosity (2.24-12.04 Wm) at a depth of more than 54.98 m. Based on this model, potential shallow aquifers were estimated to be at sounding points Sch-5, Sch-6, and Sch-7. This hydrostratigraphic model shows that the two types of aquifers are separated by an aquitard layer, allowing groundwater infiltration from the shallow aquifer to the deep aquifer and vice versa. Moreover, the Serayu riverbanks in this research area are estimated to be a groundwater discharge area.
Application of Electrical Conductivity (EC) for Some Potato Varieties in the Aeroponically Seed Production with Root Zone Cooling and Evaporative Cooling in Tropical Lowlands Eni Sumarni; Priswanto Priswanto; Zaroh Irayani
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 11, No 2 (2022): June
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v11i2.184-194

Abstract

Aeroponic potato seed production in the lowlands has been carried out by root zone cooling and evaporative cooling in order to reduce high temperature stress for the roots and tops of potato plants. However, the effect of nutrient solution EC on several varieties of potato seeds for an aeroponic system with a combination of root zone cooling and evaporative cooling for potato seed production in the lowlands has not been done. This study aims to obtain the response of potato varieties and the application of different ECs on aeroponic seed production with root zone and evaporative cooling in tropical lowlands. The factors analyzed : 1. Variety (V): V1 (MZ), V2 (Granola K), V3 (Granola L), and 2. Nutrient concentration (EC): EC1 (1.5 mS/cm for Week 1- 4, 2 mS/cm for Week 5 until harvest), and EC2 (1.5 mS/cm for Week 1-4, and 3 mS/cm for Week 5 until harvest), while the design used was RAK with 3 replications. The results showed that the Granola K and EC2 varieties are more efficient for potato seed production in the lowlands with the application of root zone and evaporative cooling. This variety produced the highest number of tubers up to 30 tubers/plant. Similarly, the Granola L and MZ varieties showed similar results with a total number of tubers above 10 tubers/plant. Keywords: Cultivation, Greenhouse, Hydroponics,  Nutrition,  Tubers
Evaluation of the Coolnet Placement Distance to Direct Evaporative Cooling to Increase Potato Seed Production in Aeroponic Systems with Root Zone Cooling in the Lowlands Eni Sumarni; Priswanto Priswanto; Zaroh Irayani; Noor Farid
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 12, No 2 (2023): June 2023
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v12i2.413-422

Abstract

Evaluation of the placement of the coolnet distance on direct evaporative cooling is needed in order to reduce the wilting percentage and improve seed production of potatoes. The aim of the study was to obtain the appropriate coolnet distance for the growth and development of aeroponic potato seedlings in evaporative cooling and root zone cooling applications in the tropical lowlands. The factors tested were: 1) Evaporative cooling (JEvap) distance: JEvap1 (25 cm from the top zone of the plant), JEvap2 (50 cm from the top zone), and Jevap3 (60 cm), and 2) Varieties (V): V1 (MZ), V2 (Granola K), V3 (Granola L). The design used was completely randomized design with 2 replications. Growth data and results were analyzed by the F test and continued with Duncan's Multiple Range Test (DMRT) at 5% level. The results showed that the direct evaporative cooling method and the coolnet spacing of 50-60 cm which were integrated with root zone cooling created an air temperature at the top of the plant 26-28 °C, reduced the percentage of burnt wilting, and increased the number of tubers by an average of 31.4 to 41.7 tubers/plant. Keywords: Aeroponic, cooling system, growth environment, hidroponic, limited control.
Interpretation of 1D-Resistivity Data to Describe the Aquifer Model in the Serayu Watershed Area of Somagede Village, Somagede District, Banyumas Regency Sehah Sehah; Hartono Hartono; Zaroh Irayani; Urip Nurwijayanto Prabowo; Fajar Apriyanto; Desty Maharani Sagita; Dwi Purnamasari
Jurnal Geologi dan Sumberdaya Mineral Vol. 22 No. 2 (2021): JURNAL GEOLOGI DAN SUMBERDAYA MINERAL
Publisher : Pusat Survei Geologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33332/jgsm.geologi.v22i2.567

Abstract

Acquisition of resistivity data using the Schlumberger configuration has been carried out in the Serayu watershed area of Somagede Village, Somagede District, Banyumas Regency. The purpose of this research was to describe a groundwater aquifer model based on the interpretation of 1D-resistivity data. The research results are resistivity logs of subsurface rock distributed over seven sounding points with resistivity values ranging from 2.24-192.78 m. The sounding points are located at positions of 7°31′28.55″ and 109°19′8.65″ (Sch-1) to 7°31′18.79″ and 109°19′21.45″ (Sch-7). The interpretation of the resistivity logs has resulted in a lithology log at each sounding point. Based on the interpretation, the lithology of the research area is composed of topsoil (42.85-85.13 m), sandy clay which partly slightly wet (7.08-17.18m), sandy clay inserted with gravel (22.44-31.70 m), sand, gravel, and pebble, with various consolidated (22.16-192.78m), sand inserted by gravel (6.77m), alternating sandstone and claystone, some of which are alternated with marl and tuff (8.71-21.99m), and sandstones with various porosity (3.25-8.76m). Shallow aquifers are interpreted to exist in sand inserted by gravel layer (13.23-27.67 m) at the sounding point of Sch-2 where the potential is quite good. While deep aquifers are estimated to be present in the sandstone layer with various porosity (> 46.67 m) at all sounding points with very good potential.Keywords: 1D-resistivity, Serayu watershed, resistivity log, aquifer, Somagede Village.
Optimasi Pemisahan Perak dari Limbah Fixer melalui Variasi Tegangan Efita Pratiwi Adi; Hartono Hartono; Zaroh Irayani; Adilla Luthfia; Adam Mulawarman
Jurnal Teori dan Aplikasi Fisika Vol 12, No 1 (2024): Jurnal Teori dan Aplikasi Fisika
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtaf.v12i1.14182

Abstract

Fixer solution is a chemical substance in the form of a concentrated liquid that is used to wash radiographic films. The Fixer Solution functions to dissolve the silver halide layer on unexposed radiographic films. This research aims to design a waste fixer solution processing device using the electrolysis method and to regulate the voltage to the optimal point to produce a large electrolysis rate. Design an electrolysis device using stainless steel electrodes with a trapezoidal cathode with parallel sides of the cathode with lengths of 170 mm, 145 mm and a cathode height of 155 mm. The anode is rectangular with a length of 30 mm and a height of 169 mm. The method for making tools goes through several stages, namely making tool designs, testing tools, and testing waste fixer solution. The fixer waste used comes from Betesdha Wonosari Hospital. In this research, each test used 5 liters of fixer waste at each voltage which was regulated for 3 hours. The higher the mass voltage produced, the higher the electrolysis rate will be. However, the higher the voltage, the faster the sulfidation process will be. In the design of this fixer waste management tool, it can work optimally at a voltage of 4 V with a speed of 4.87 g/hour.
Co-Authors ., Hartono AA Sudharmawan, AA Abdullah Nur Azis Abdullah Nur Aziz Adam Mulawarman Adilla Luthfia Andreas, Roy Asmoro Widagdo, Asmoro Desty Maharani Sagita Dwi Purnamasari Efita Pratiwi Adi Eni Sumarni Fajar Apriyanto Farzand Abdullatif Hartono hartono hartono Hartono Hartono Haryadi, Aris Indra Permana Jati Indra Permanajati, Indra Karisun, Kharisun Mahfud, Chiquita Laila Mutaabidah, Insyahita Akmalia Noor Farid Nurfaijin, Nurfaijin Priswanto Priswanto Priswanto, Priswanto Purwanti, Khairunnisa Zalfa Putra, Ryan Sudrajat Permana Sa'adah, Nailis Sachrul Iswahyudi Sehah Sehah Sehah Sehah Sehah Sugito Sugito - Sukma Sewiji Sukmaji Anom Raharjo Umi Pratiwi Umi Pratiwi, Umi Urip Nurwijayanto Prabowo Urip Nurwijayanto Prabowo Wihantoro Wihantoro