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All Journal SCIENCE TECH: Jurnal Ilmiah Ilmu Pengetahuan dan Teknologi JFRES: Journal of Fiscal And Regional Economy Studies INTAN Jurnal Penelitian Tambang
Bambang Triyanto
Universitas Papua
Agriculture, Biological Sciences & Forestry Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Engineering Materials Science & Nanotechnology Social Sciences

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PENERAPAN GAME THEORY DALAM PEMASARAN FRAKSI SIRTU PADA PT X DAN PT Y Arif Setiawan; Djusman Bin Aziz; Indra Birawaputra; Bambang Triyanto; Ismiyati
INTAN Jurnal Penelitian Tambang Vol. 5 No. 1 (2022): INTAN Jurnal Penelitian Tambang
Publisher : Jurusan Teknik Pertambangan Program Studi S1 Teknik Pertambangan Fakultas Teknik Pertambangan dan Perminyakan Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (410.094 KB) | DOI: 10.56139/intan.v5i1.105

Abstract

The increasing demand for sand and stone materials has resulted in competitions between mining companies in order to meet the need of the material for construction activities, from which it results in conflicts between two parties, two people, or groups of people. Part of the mathematical programming technique used to analyze the decision-making process of competition between two or more parties is Game Theory. The application of game theory is to produce the best strategy that will be used by a company to optimize the marketing of gravel fraction. Instruments or tools used in the research is a questionnaire that includes improving product quality, affordable pricing, improving service quality, establishing an effective corporate work process, and determining the place of inventory. The result is arranged in the form of a payoff matrix and analyzed using the Game Theory, that indicates the competition between PT X and PT Y. The analysis results show that the implementation of those strategies is the best way that can optimize marketing of gravel fraction, so that it can improve the position of profit or loss got saddle point from competition between PT X and PT Y, which is 11. The results also confirm the increase of profit of PT X, from 10 to 11 by applying effective work processes (probability 5:1). In addition, the loss of PT Y could decrease from 12 to 11 by applying strategies to improve the product quality of gravel fraction and determining the stock of the fraction (probability 1:1).
Evaluasi Kegiatan Corporate Social Responsibility (CSR) Terhadap Pengembangan Sosial Ekonomi Masyarakat Di PT. Holcim Indonesia Tbk. Pabrik Cilacap Bambang Triyanto
JFRES Journal of Fiscal and Regional Economy Studies Vol. 5 No. 1 (2022): Journal of Fiscal and Regional Economy Studies (JFRES)
Publisher : Pusat Penelitian Pemberdayaan Fiskal dan Ekonomi Daerah (P3FED) Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36883/jfres.v5i1.69

Abstract

Program Corporate Social Responsibility (CSR) PT. Holcim Indonesia Tbk. Cilacap Factory is intended for residents who live around the factory and mine sites. This program aims to improve living standards and income levels and improve the education of citizens, especially at school age. CSR programs also open job opportunities for the surrounding community in order to provide benefits and improve welfare. In general, CSR formats and concepts have been implemented by PT. Holcim Indonesia Tbk. Cilacap Factory is a combination of community relations and community empowerment. The implementation of this can be seen from the company's policy involving stakeholders in determining the program to be implemented in the CSR program. This format and concept already have planning documents and strategies for achieving targets because it is able to establish and empower the community. Corporate Social Responsibility programs that have been implemented by companies in the socio-economic development of the community are Posdaya, Infrastructure, Education, Social, Culture, Religion, and Environment. Posdaya activities have provided benefits in the economic field in the form of additional family income whereas before CSR activities the average income per month is Rp. 1,068,000.00 per month, and after CSR increased to Rp. 1,372,000.00 per month, or an increase of 9.6 percent. Other programs that have provided benefits for the surrounding community are in the field of infrastructure where there has been an absorption of labor from ongoing projects, as well as the availability of transportation access that makes it easier for people to market production results.
Analisis Perbedaan Cadangan Endapan Bijih Nikel Saprolit antara Hasil Eksplorasi dan Realisasi Penambangan pada Blok Penambangan Pulau Gee Bambang Triyanto; Ai Siti Patimah
Science Tech: Jurnal Ilmu Pengetahuan dan Teknologi Vol 11 No 2 (2025): August
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/st.vol11.no2.a19840

Abstract

This study is part of mining exploration activities, which are crucial to ensure the accuracy of reserve estimates in order to support effective production planning. This is particularly important given the frequent discrepancies between exploration data and actual mining realization. Therefore, a detailed analysis is required to identify the factors causing tonnage deviations in saprolite nickel ore deposits. This study aims to analyze the differences between saprolite nickel ore deposit reserves from exploration results and mining realization at the Gee Island Mining Block and identify the factors influencing these discrepancies. The method used is the area of influence approach, where reserve calculations are based on determining the boundary areas around drill holes, covering half of the area between adjacent drill holes. The mining system applied is an open-pit mine with a mining recovery rate of 90%. The results show that the mined nickel ore tonnage in July was 20,161 tons from exploration, with an actual production tonnage of 19,432 tons, while in August, the exploration tonnage was 25,603 tons, with an actual production tonnage of 24,410 tons. The percentage of tonnage deviation reached 3.62% in July and 4.66% in August. Several factors were identified as causes of tonnage reduction, including drilling spacing and recovery, preparation process, ore extraction technique, and the applied reserve calculation method.
Co-Authors Ai Siti Patimah Arif Setiawan Djusman Bin Aziz Indra Birawaputra Ismiyati