Abstract:ABSTRAK Dalam bidang pertambangan, pengolahan data sangat penting karena deposit bahan galian tersebar tidak merata di dalam bumi. Penggunaan program Minescape mampu meningkatkan semua aspek informasi teknik suatu site tambang,…
u site tambang, mulai dari data eksplorasi, survey geologis, sampai ke jadwal produksi tambang, dan mengelola model-model geologi tiga dimensi serta desain tambang dengan sistem grafik CAD 3D. Metode yang digunakan adalah pengumpulan data numerik serta analisis data yang dapat diukur yang mencakup data topografi, data modelling batubara, dan design tambang. Penelitian ini termasuk dalam kategori penelitian deskriptif yaitu observasi langsung di lapangan dengan menggunakan data kuantitatif. Dari perhitungan dengan menggunakan Software Minescape 5.12 diperoleh total waste sebesar 1.700.898,91 Bcm dan batubara sebesar 242.840,92 Ton. Hasil perhitungan dari volume dan tonase diketahui nilai nisbah pengupasan atau stripping ratio sebesar 7,00.
Kata Kunci : Pertambangan, Permodelan, Minescape, Batubara
Abstract
In the field of mining, data processing is crucial due to the uneven distribution of mineral deposits within the earth. The utilisation of the Minescape programme can enhance all aspects of technical information for a mining site, from exploration data and geological surveys to the mining production schedule, and managing three-dimensional geological models and mine designs with the CAD 3D graphics system. The methods used include numerical data collection and measurable data analysis, encompassing topographic data, coal modelling data, and mine design. This research falls into the category of descriptive research, involving direct field observations using quantitative data. Calculations using Minescape Software 5.12 revealed a total waste of 1,700,898.91 Bcm and coal of 242,840.92 tonnes. From the calculation of volume and tonnage, the stripping ratio was found to be 7.00.
Keywords: Mining, Modelling, Minescape, Coal
Abstract:Sales forecasting is a crucial component of operational strategy and inventory management in the culinary industry, particularly for businesses dealing with raw materials that have short shelf lives. The Sate Padang Hapis…
s business faces the challenge of unpredictable monthly fluctuations in consumer demand, which often lead to supply imbalances, overproduction, or lost profit opportunities due to stockouts. This study aims to implement and analyze the accuracy of the Single Moving Average (SMA) quantitative forecasting method in predicting Sate Padang Hapis sales volumes for June 2026. Model performance was evaluated by assessing mathematical accuracy across two time-interval variations: 3-month and 5-month moving averages. Projection error rates were rigorously measured using Mean Absolute Deviation (MAD), Mean Squared Error (MSE), and Mean Absolute Percentage Error (MAPE) parameters. The analysis reveals that the Single Moving Average model with a 5-month interval yields projections closest to actual data, achieving the lowest error rates (MAD: 28.00; MSE: 1,304.00; MAPE: 2.28%). Implementing this forecasting model provides management with an objective basis for decision-making, enabling the effective and efficient optimization of raw material logistics and supply management.
Abstract:Bread product sales have become an important aspect of the bakery business, influenced by fluctuations in demand that are not easily predictable. Efficient sales management requires a deep understanding of sales patterns.…
. This study aims to optimize bread product sales by using the K-Means Clustering algorithm to analyze daily sales performance at Toko Roti Amin. The data used includes sales volume and transaction frequency for bread products, consisting of 356 data points. The results show that the bread products can be grouped into three clusters: 129 data in the “Good Sales” cluster, 28 data in the “Moderate Sales” cluster, and 199 data in the “Low Sales” cluster. These findings assist bakery owners in managing stock, production planning, and more targeted marketing strategies. Although there are limitations in using K-Means Clustering, such as dependence on the initial centroid selection, this study proves that applying this technique can enhance inventory management and maximize profit in the bakery business.
Abstract:Covid-19 is a serious health problem that occurs globally, including in Indonesia. Mathematical modeling is one way to see how the spread of the Covid-19 pandemic is developing. The model used in this study is SVEI1I2R and…
nd its stability will be seen. The article discusses the stability of fixed points using the Jacobian matrix and the Routh-Hurwitz criterion as well as the Castilo-Chaves and Song Theorems, reproduction numbers, and their numerical analysis. The results of the analysis show that the stability of fixed points is related to the basic reproduction number determined by the next-generation matrix, stability analysis in accordance with the theorem and the distribution of the population is shown in a numerical graph.
Abstract:The palm oil industry plays a strategic role in Indonesia's economy, including in Merauke Regency, which is one of the developing palm oil plantation areas in Papua. However, challenges in production efficiency, environmental…
ental sustainability, and competitiveness remain obstacles in the industry's value chain. Innovation in various aspects of the value chain, such as productivity improvement through agricultural technology, processing efficiency, and product diversification based on palm oil, is a key factor in enhancing the industry's competitiveness. This study aims to analyze the role of innovation in the palm oil industry value chain in Merauke Regency by identifying the types of innovations applied and the factors that support or hinder their adoption. The research employs a qualitative approach, using data collection techniques such as in-depth interviews, observations, and document studies. The findings indicate that upstream sector innovations, such as the use of superior seedlings and digital plantation management, have improved productivity and efficiency. Meanwhile, downstream innovations in palm oil processing and value-added product diversification still face challenges, particularly in infrastructure and regulatory aspects. The study's implications suggest that optimizing innovation in the palm oil value chain requires more adaptive policies, increased investment in research and development, and capacity building for human resources. Thus, innovation can serve as a driving force in creating a more competitive, sustainable palm oil industry that contributes to local economic development in Merauke Regency.
Abstract:Cultural-based tourism has become an important strategy for enhancing community welfare while preserving local cultural heritage. Desa Tua in Buleleng Regency, Bali, possesses significant potential through the bamboo weaving…
ving tradition of the Bali Aga community, which holds substantial economic and cultural value. This study aims to analyze community empowerment through the development of tourism based on cultural weaving products, strengthen the bargaining position of local artisans, and examine efforts to maintain a balance between economic benefits and cultural preservation. The study employed a mixed-methods approach with a sequential explanatory design and involved 150 respondents. Data were collected through observation, interviews, documentation, and surveys. The findings reveal that experiential tourism increased average household income by 35% and enhanced women's participation by 42% through their involvement in production activities, training programs, tour guiding, and the management of creative enterprises. Traditional weaving products were successfully developed as the primary tourism attraction, generating greater economic value while preserving cultural integrity through the clear distinction between sacred and commercial products. The utilization of digital media further expanded market access and strengthened product competitiveness. The novelty of this study lies in the development of an integrative model that connects community empowerment, experiential tourism, cultural preservation, women’s empowerment, and digital cultural entrepreneurship as a sustainable strategy for cultural tourism development.
Abstract:Economic growth is a key indicator in assessing a country's ability to sustainably increase the output of goods and services. This study aims to analyze the effect of trade openness (TO) and the interaction between foreign…
gn direct investment (FDI) and political stability (PS) on economic growth in member countries of the Organization of Islamic Cooperation (OIC). The study utilizes panel data from 30 OIC member countries over the period 2005–2023, sourced from the World Bank’s World Development Indicators (WDI). The analytical method employed is panel data regression using the Fixed Effect Model (FEM) to control for individual heterogeneity across countries, as well as Moderated Regression Analysis (MRA) to test the moderating role of PS in the relationship between FDI and economic growth. The estimation results show that both TO and FDI have a positive and significant impact on economic growth. However, the interaction between FDI and PS exhibits a negative and significant effect, which contradicts conventional theoretical expectations that political stability should enhance the positive impact of FDI. These findings suggest that in several OIC countries, despite relatively low political stability, FDI continues to flow in response to economic opportunities, strategic interests, or domestic market appeal. In other words, political instability does not always serve as a major barrier to foreign investment, especially when the economic potential remains high. Moreover, FDI under such conditions may serve as an important instrument to strengthen international economic cooperation, expand production capacity, and drive long-term economic growth. These findings provide strategic implications for the formulation of investment and institutional stability policies in OIC countries.
Abstract:Trade is one of the crucial elements in a country's economy, playing a vital role in supporting regional and national economic growth. Through trade, a region can meet its needs and distribute its production to other areas,…
as, both domestically and internationally. Southeast Sulawesi Province, as one of the regions on the island of Sulawesi, has great potential in trade, particularly in the agricultural and industrial sectors. This province has made a significant contribution to the country's foreign exchange reserves through export and import activities. This study aims to analyze the development of trade in Southeast Sulawesi Province, focusing on the export-import performance and the region's main commodities. The method used is descriptive, utilizing secondary data obtained from the Central Statistics Agency (BPS). The results show that in 2024, Southeast Sulawesi experienced a trade surplus, where the value of exports exceeded the value of imports. The largest surplus was recorded in January 2024, amounting to 256.38 million US dollars. Three major commodities contribute significantly to the province's trade, namely cloves with a transaction value of IDR 480.74 billion, cocoa at IDR 248.74 billion, and cashew nuts at IDR 230.75 billion. These three commodities not only serve as flagship products for the local economy but also have a positive impact on the national economy. The findings of this study suggest that with proper management, the trade potential of Southeast Sulawesi can continue to grow, contributing even more to Indonesia's overall economy.
Abstract:This study, conducted from 2017 to 2023, analyzes the relationship between international tourism and law using bibliometric methods on a dataset of 237 selected documents. The findings reveal a declining trend in annual…
dataset growth, with an average document age of approximately 2.93 years. The study delves into author collaboration, document types, and keyword usage. There was an average of 4,042 citations per document, reflecting the scholarly impact in the field. The dataset included 714 plus keywords and 738 author keywords, contributing to content analysis. Among the 570 unique authors, 87 were sole authors, while 99 documents were single-authored, and the average co-authorship was 2.47. Notably, there was no international co-authorship in the dataset. Document types encompassed articles, books, book chapters, conference papers, and more, with peak scientific production observed in 2020. Treemap and thematic map analysis visualize term distribution and research trends.
Abstract:Abstract: The rapid advancement of information technology requires companies to enhance efficiency in supply chain management. RO Aquatub, a business engaged in manufacturing bathtubs, often faces issues such as delays in…
n raw material procurement, manual stock recording, and the absence of an integrated system with suppliers. These problems impact the overall production process efficiency. This study aims to develop a web-based Supply Chain Management (SCM) system to optimize the raw material inventory management at RO Aquatub. The system development follows the waterfall model, consisting of requirement analysis, system design, implementation, and testing phases. The system is designed to serve three main entities: admin, supplier, and manager, with key features including stock management, material purchase requests, live chat, and transaction reports. The results of system testing using the black box method indicate that all features function as intended. The system improves stock management efficiency, speeds up communication with suppliers, and supports decision-making by providing accurate and real-time data. With this system, RO Aquatub can manage its production operations more effectively and more controlled manner.
Keywords: Supply Chain Management; Raw Material Inventory; Information System, RO Aquatub; Web-Based System
Abstrak: Perkembangan teknologi informasi yang pesat menuntut perusahaan untuk meningkatkan efisiensi dalam pengelolaan rantai pasok. RO Aquatub merupakan usaha yang bergerak di bidang pembuatan bathub, namun dalam praktiknya sering mengalami kendala seperti keterlambatan pengadaan bahan baku, pencatatan stok yang masih manual, serta tidak adanya sistem terintegrasi dengan supplier. Permasalahan tersebut berdampak pada kurang optimalnya proses produksi. Penelitian ini bertujuan untuk mengembangkan sistem manajemen rantai pasok (Supply Chain Management) berbasis web guna mengoptimalkan pengelolaan persediaan bahan baku pada RO Aquatub. Metode pengembangan sistem menggunakan pendekatan waterfall, dengan tahapan analisis kebutuhan, perancangan, implementasi, dan pengujian sistem. Sistem dirancang untuk memfasilitasi tiga entitas utama yaitu admin, supplier, dan pimpinan, dengan fitur utama seperti manajemen stok, pengajuan pembelian bahan, live chat, serta laporan transaksi. Hasil pengujian menggunakan metode black box menunjukkan bahwa seluruh fitur sistem berjalan sesuai fungsinya. Sistem ini mampu meningkatkan efisiensi pengelolaan stok, mempercepat proses komunikasi dengan supplier, serta membantu pimpinan dalam pengambilan keputusan berbasis data yang akurat dan real-time. Dengan adanya sistem ini, pihak RO Aquatub dapat menjalankan operasional produksi secara lebih efektif dan terkontrol.
Kata kunci: Supply Chain Management; Persediaan Bahan Baku; Sistem Informasi; RO Aquatub; Web