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All Journal Bisman (Bisnis dan Manajemen): The Journal of Business and Management Journal of Energy, Material, and Instrumentation Technology
Delianti, Delianti
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Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Materials Science & Nanotechnology Physics Social Sciences

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Initial Study of Intrusion on The Serambi Nusantara Coast Using Geoelectrical Methods Delianti, Delianti; Choerullah, Andy; Muslim, Anis Aulia
Journal of Energy, Material, and Instrumentation Technology Vol 6 No 2 (2025): Journal of Energy, Material, and Instrumentation Technology
Publisher : Departement of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jemit.v6i2.293

Abstract

The Serambi Nusantara area, based on geological conditions, has alluvial formations with sand that almost dominates, interspersed with clay rock throughout the location with swamp conditions in most parts of the area. Morphologically, Serambi Nusantara is a coastal area. Most of the population in this area uses groundwater to meet their water needs due to the increasing intensity of use so groundwater is decreasing and there is emptiness in the well cavities, this results in seawater seeping from these cavities and mixing with groundwater which causes water problems in this area, especially the salinity of the water quality. This research was carried out to determine the quality of groundwater using the Induction Polarization (IP) method, in the Serambi Nusantara area where the research stage included geological mapping of the area with results according to the description above, checking water quality data and geoelectric measurements of induced Polarization (IP). In the research results, it was found that the cross-sectional chargeability value at a depth of ± 20 m showed low chargeability (-10 msec), indicating an indication of seawater intrusion in the research area. This value is similar to previous research.
Analisis Penjualan Listrik dalam Meningkatkan Perolehan Laba Pada PT. PLN (Persero) Unit Pelaksana Pelayanan Pelanggan Bontang Mustari, Mustari; Siddiq, Muhammad; Aulia Muslim, Anis; Delianti, Delianti
Bisman (Bisnis dan Manajemen): The Journal of Business and Management Vol. 8 No. 2 (2025): Juli 2025
Publisher : Program Studi Manajemen, Fakultas Ekonomi, Universitas Islam Majapahit, Jawa Timur, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36815/bisman.v8i2.3944

Abstract

The implementation of prepaid electricity enables households to monitor and control their electricity consumption. The system functions similarly to mobile phone credit top-ups. One key advantage of prepaid electricity is the elimination of late payment penalties. Compared to postpaid electricity, the prepaid system is perceived as more economical, as it encourages consumers to be more prudent and efficient in their energy usage.Prepaid electricity services operate on a pay-before-use basis, offering flexibility and better cost management to consumers. This study aims to analyze the impact of electricity sales on profit growth at PT PLN (Persero) UP3 Bontang. The research adopts a quantitative approach using descriptive statistical analysis based on financial data from the last five years (2016–2020). The findings reveal that, although there has been an increase in both the volume and value of electricity sales, this does not necessarily translate into increased company profits. The stagnation or decline in profit is primarily attributed to high operational costs, including power plant fuel expenses, electricity purchases from independent power producers (IPPs), network maintenance costs, and exchange rate fluctuations.
Co-Authors Aulia Muslim, Anis Choerullah, Andy Muhammad Siddiq, Muhammad Muslim, Anis Aulia Mustari Mustari