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Artikel Jurnal
Comparison of Laterite Nickel Deposit Levels on the Mining Front with Stockpile at PT Ceria Nugraha Indotama, Kolaka Regency
PT Ceria Nugraha Indotama is a company engaged in mining laterite nickel ore in Wolo sub-district, Kolaka district, Southeast Sulawesi province. In lateritic nickel ore mining activities, there is often a difference in levels of laterite nickel ore when it is still in the mining front and after…
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Artikel Jurnal
A Green Pathway to Advanced Cobalt Oxide Materials: Dye Integration and Phytochemical Modification
This study investigated the impact of natural dyes derived from three plant sources (Eupatorium odoratum, Ageratum conyzoides, and Pueraria phaseoloides) on the bandgap energies of cobalt oxide (CoO) thin films thin films were synthesized using a chemical bath deposition technique at 80-85°C and…
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Artikel Jurnal
Analysis of Spiral Pump Head Based on Water Wheel Parameters
Water supply is a crucial factor for farmers in managing agricultural land, especially those relying on river water sources. The lower position of rivers and the considerable distance from the fields often pose challenges, making water pumps powered by electricity or fuel a common choice, despite…
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Artikel Jurnal
Determination of Premium Reserves for Whole Life Insurance Using the Canadian Method with Varying Premium Payment Periods
Premium reserves are essential funds prepared by insurance companies, particularly in life insurance, to cover potential future claims. These reserves are calculated based on premiums paid by policyholders and must be sufficient to meet all projected claim-related expenses. A lower reserve implies…
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Artikel Jurnal
Comparison of SVM, K-NN, RF, CART, and GNB Algorithms for Water Bodies Detection Using Sentinel-2 Level-2a Imagery in Nakhon Pathom, Thailand
Satellite imagery is utilized in various fields, one of which is land use and land cover (LULC) analysis. This study aims to classify water bodies using machine learning models such as SVM, K-NN, RF, CART, and GNB. The data source is obtained from the Google Earth Engine (GEE) platform using…
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Artikel Jurnal
Bubble flow configurations generated by ejector type bubble generator
Bubble flow configurations generated by an ejector bubble generator were captured using a high-speed video camera and extracted into several images. The air flow and nozzle diameter were varied during the test in ranges of 0.1-1.5 lpm and 1.17-3.5 mm, respectively. The results reveal that in…
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Artikel Jurnal
Assessing Motorcycle Helmet Usage Rates and Road Safety Laws Awareness among Motorcyclists in Bangladesh
This research investigates helmet usage rate and motorcyclists’ awareness of road safety laws regarding helmet usage in the Darial Union of Bakerganj Upazila, Bangladesh. A structured questionnaire collected data from 100 participants representing various age groups and professions. Then, data…
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Artikel Jurnal
The Effect of Flexible Resin and Standard Resins Mixtures Variations on Dimensional Accuracy Using SLA 3D Printing
The present study investigates the effect of the concentration of flexible resin on the dimensional accuracy of mixtures product manufactured by 3D printing using SLA technology. Specimens were designed and according to the ASTM D412 standard. Ten variations of resin mixtures were examined. The…
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Artikel Jurnal
Cluster Change Analysis to Assess the Effectiveness of Speaking Skill Techniques using Machine Learning
This study aims to compare effective teaching methods for speaking using machine learning. The classes used in this study consisted of three classes: conventional, vlog project, and picture series. The data used were students' pre-test and post-test scores. The machine learning algorithm used is…
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Artikel Jurnal
Design of a Speed Sensorless Control System on a DC Motor using a PID Controller
The speed sensorless control system on a DC motor is a DC motor speed control system that does not use a speed sensor to measure the motor speed. The motor speed value is estimated by an observer from the stator current and voltage that are measured using a sensor. This study uses an R observer…
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Artikel Jurnal
Mini Solar Power Resources for IoT system in the Vannamei Shrimp Pond Model
Shrimp pond water quality is one of the challenging issues for shrimp farmer to keep or even increase their production level to meet the domestic and export needs. Many researches have been done to help shrimp farmer to manage water quality using Internet of Things (IoT) technologies. In order to…
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Artikel Jurnal
Improving the Accuracy of Prediction of Dissolved Oxygen and Nitrate Level Using LSTM with K-Means Clustering and Spearman Analysis
This study discusses how to prepare data properly before entering the learning process for prediction using Deep Learning (DL). Long Short-Term Memory (LSTM) is one of the DL methods that is often used for prediction because of its superiority in maintaining long-term information. Although LSTM has…
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Artikel Jurnal
Enhancing the Cooling Effectiveness Utilizing a Tapered Fin Having Capsule-Shaped Cross-Sectional Area Numerically Simulated Using Finite Difference Method
This paper reports the results of our research on improving the cooling of an engine using fins. This problem is important to discuss because various parts of the world have utilized machining technology. When the engine operates, it produces heat. This heat reduces the efficiency of the engine's…
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Artikel Jurnal
The Effect of Image Enhancement on Automatic Vehicle Detection Using Yolov8 Based on Jetson Nano Single Board Computer
Vehicle counting systems using image processing and deep learning have been widely studied. Using images captured by CCTV cameras makes vehicle counting effective and efficient. Although much research has been done, there are still challenges in direct application in the field. Object detection…
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Artikel Jurnal
Determination of Cyanide Content and Heavy Metals (Cu, Ni, Cd, & Pb) in Different Processed Cassava Meal in Abraka Metropolis, Delta State, Nigeria
Cassava is a tuberous plant in Nigeria that can be processed into different meal but its various forms contains a trace concentrations of cyanide, cadmium, nickel, lead and copper that are not only essential for man but toxic if their concentration levels are high. This study determined the cyanide…
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Artikel Jurnal
Evaluating XGBoost Performance in Improving Community Security through Multi-Class Crime Prediction: Insights from the Denver Crime Dataset
Crime is a phenomenon that needs to be understood and predicted to reduce victimizations and improve the efficiency of investments in personnel and equipment. Criminal data that is used to analyze crime today is more complicated, and voluminous than the data that was previously used in crime…
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Artikel Jurnal
Coconut Shell-Based Briquettes for Sustainable Energy: A Bibliometric Study on Biomass Mixtures and Binder Materials
Coconut shell is one of the potential biomass resources that has been widely developed as a raw material for briquettes to support renewable energy initiatives and circular economy practices. This study aimed to explore the development, research focus, and future directions of cocomut shell…
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Artikel Jurnal
In Vitro Regeneration of Dendrobium Through Somatic Embryogenesis from Leaf Explants
The purpose of this study was to determine the best basic medium type and TDZ concentration for the development of somatic embryos from Dendrobium orchid leaf explants. Three replications were arranged factorial (2x3) in a completely randomized design for this study. First, there were two types of…
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Artikel Jurnal
Fine-Tuned IndoBERT-Based Sentiment Analysis for Old Indonesian Songs Using Contextual and Generating Augmentation
Studi ini meneliti analisis sentimen lagu-lagu tradisional Indonesia menggunakan model IndoBERT yang telah disempurnakan melalui penggabungan augmentasi data kontekstual dan tekstual. Kumpulan data tersebut terdiri dari komentar pengguna yang terkait dengan lagu-lagu klasik Indonesia, yang dipecah…
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Artikel Jurnal
Sign Language Detection Models using Resnet-34 and Augmentation Techniques
For deaf or hard of hearing people, sign language is a primary means of communication, but low public understanding makes social engagement difficult. Researchers now use computer vision technology and Convolutional Neural Network (CNN) to detect sign language movements. Problems such as…