Studi Struktur Bawah Permukaan Dengan Menggunakan Metode Geolistrik Resistivitas Konfigurasi Schlumberger  (Study kasus Stadion Universitas Brawijaya, Malang)

Hakim, Arif Rahman; Hairunisa, Hairunisa

doi:10.31102/wacanadidaktika.5.01.56-64

Cited by 4 publications

(4 citation statements)

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“…In Monte Carlo Simulation, Random Demand Number Generation is used by utilizing the normal distribution. Hakim (2017) mentioned that the process of generating random demand numbers can be done using Microsoft Excel with the formula = ROUNDUP(NORMINV(RAND(); Mean; Standard Deviation); 0), based on the mean and standard deviation of parts requirement data.…”

Section: Monte Carlo Simulation Of the Eoq Methodsmentioning

confidence: 99%

Spare parts for fisheries surveillance vessels inventory management in Ministry of Marine Affairs and Fisheries

Velayati,

Karunia,

Sutrisno

2024

IJOMS

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This study aims to identify problems and formulate a model for managing spare parts inventory of fisheries supervisory vessels in the Directorate of Fleet Monitoring and Operations, Ministry of Marine Affairs and Fisheries to be optimal. The research method is carried out using a qualitative approach. Data collection is done by interviews, field observations and analysis of data and documents. Water inventory management theory (2003) is a theory used to determine the cycle or process of managing spare parts inventory and the Economic Order Quantity (EOQ) method of Horngren (2016) to determine the optimum order quantity and Analysis of ABC Chin (2017) in Putra (2020 to classify inventory into 3 (three) classes, namely A (very important items), B (items that are quite important), and C (relatively unimportant). This study concluded that the management of spare parts in the POA Directorate has not been optimal due to several factors, namely: 1). Human Resources: operators do not have inventory background, and inventory recording with the SAKTI application requires operator involvement, 2). Method: procurement of spare parts is carried out periodically only once a year, so it cannot anticipate changes in needs, and 3), Machinery (Tools): Parts inventory is still done manually with Ms. Excel. Researchers develop a business process model that includes procurement, inventory, storage, delivery, and use of spare parts to improve the efficiency of parts inventory management.

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Section: Monte Carlo Simulation Of the Eoq Methodsmentioning

confidence: 99%

Spare parts for fisheries surveillance vessels inventory management in Ministry of Marine Affairs and Fisheries

Velayati,

Karunia,

Sutrisno

2024

IJOMS

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“…The Schlumberger configuration's geometry factor is as follows: The dipole apparent resistivity value changes depending on the setup utilized while collecting data in the field (Hakim. A.R & Hairunisa.…”

Section: Methodsmentioning

confidence: 99%

Using the Geoelectric Method to Identify Groundwater Schlumberger Configuration Resistivity in the Gambesi and Sasa Villages, South Ternate District, North Maluku Province

Hilda Alkatiri,

Arbi Haya,

Yusdi Akin

2023

Technium

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One of the geophysical techniques that may be used to define subsurface lithology is the geoelectric approach. The Schlumberger configuration's resistivity technique is used on the assumption that the distance between the potential electrodes is fixed. In contrast, the distance between the current electrodes progressively varies following the resistivity-to-depth curve and the resistivity table. This study aims to determine the lithology of the soil layer and the lithology of the soil layer that serves as an aquifer based on their respective resistivity values. The acquired data demonstrate the presence of multiple layers, including alluvium, sand, gravel, and andesite, in the subsurface lithology at two sites with a depth of 25 meters and a track length of 50 and 100 meters. Based on the resistivity curve to depth and the findings of data processing at the two data collecting sites, groundwater at location 1 (Gambesi Village) could not be identified in the resistivity table because of the location's hilly terrain and alluvial rock types. However, at location 2 (Sasa Village), groundwater was present at depths of 12.8 meters with thicknesses of 6.24 cm and 0.57 Ωm and at depths of 12.8 meters with thicknesses of 4.91 meters and 297 Ωm, respectively. This region slopes down from this position.

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“…Tabel 1 merupakan nilai resistivitas batuan yang dapat digunakan untuk membantu dalam interpretasi kurva log 1D resitivitas. Beberapa penelitian yang menggunakan metode geolistrik resistivitas dengan konfigurasi Schlumberger untuk mendapatkan litologi suatu daerah pernah dilakukan diantaranya oleh Minarto (2007) [9], Sehah dan Abdullah (2016) [10], dan Hakim dan Hairunisa (2017) [11]. Beberapa peneliti juga telah menggunakan metode geolistrik resistivitas untuk eksplorasi situs purbakala antara lain Indriani (2016)[4], Eko (2013) [12], dan Saibatul (2013) [13].…”

Section: Gambar 1 Susunan Elektroda Konfigurasi Schlumberger [6]unclassified

Identifikasi Litologi Situs Klanceng Menggunakan Metode Geolistrik Resistivitas 1D

2019

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Situs Klanceng merupakan bagian dari 5 situs yang berada di Desa Kamal Kecamatan Arjasa Jember. Di wilayah Situs klanceng banyak terdapat peninggalan berupa batuan megalitikum yang terbuat dari batuan andesit. Selain yang sudah dilokalisir, banyak artefak berupa batuan andesit yang tersebar, baik nampak berupa singkapan maupun yang masih terpendan. Berdasarkan singkapan artefak, maka dilakukan penelitian identifikasi litologi Situs Klanceng menggunakan metode geolistrik resistivitas 1D konfigurasi Schlumberger. Penelitian ini dilakukan di 3 lintasan yang berbeda dengan panjang lintasan 50 m. Hasil penelitian pada lintasan 1 batuan andesit berada pada kedalaman (1,64- 17) m dengan nilai resistivitas sebesar (107,4-157,6) Ωm. Pada lintasan 2 batuan andesit berada pada kedalaman (0,75-4,41) m dengan nilai resistivitas (120-1539) Ωm. Pada lintasan 3, batuan andesit berada pada kedalaman (0,00- 1,04) m dengan nilai resistivitas (85,3-270) Ωm, dan pada kedalaman (4,71-7,67) m dengan nilai resistivitas 308 Ωm. Hasil tersebut menunjukkan bahwa pada ketiga lintasan yang diteliti, terdapat batu andesit yang diduga merupakan bagian dari artefak peninggalan zaman megalitikum pada Situs Klanceng.

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Studi Struktur Bawah Permukaan Dengan Menggunakan Metode Geolistrik Resistivitas Konfigurasi Schlumberger (Study kasus Stadion Universitas Brawijaya, Malang)

Cited by 4 publications

References 0 publications

Spare parts for fisheries surveillance vessels inventory management in Ministry of Marine Affairs and Fisheries

Spare parts for fisheries surveillance vessels inventory management in Ministry of Marine Affairs and Fisheries

Using the Geoelectric Method to Identify Groundwater Schlumberger Configuration Resistivity in the Gambesi and Sasa Villages, South Ternate District, North Maluku Province

Identifikasi Litologi Situs Klanceng Menggunakan Metode Geolistrik Resistivitas 1D

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