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Vol. 4 No. 2 (2024): September-February 2024
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Indonesia (23)
Published:
2024-08-08
Articles
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Productivity of Oil Palm Plants (Elaeis Guineensis Jacq) on Mineral Land Conversion from Rubber Plants in Tamora Plantation PT. Perkebunan Nusantara V
Dikha PrastikhaShow Abstract | Download PDF | DOI: 10.31004/jestm.v4i2.176 | Check in Google Scholar
The company converted rubber plantations into palm oil plantations to enhance operational efficiency. Palm oil is considered more profitable as its maintenance is simpler, production costs are lower, and harvesting can be done year-round without being affected by the seasons, unlike rubber, whose production decreases significantly during the rainy season. This is expected to increase the company's overall productivity and profitability. This research aims to determine the productivity of palm oil and the soil nutrients in the rubber-converted land at Kebun Tamora, PT. Perkebunan Nusantara V, Kampar Regency, Riau. The research was conducted from September 1 to November 1, 2023, using a quantitative and qualitative descriptive analysis method, utilizing secondary data. The results indicate that plantation productivity varies but has shown continuous increases year after year. For example, for the 2014 planting year, production increased from 16.150 tons/ha in 2018 to 33.127 tons/ha in 2022, while for the 2015 planting year, productivity reached 31.867 tons/ha in 2022.
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Analysis of the Effectiveness of 3D Printing Technology as an Alternative to Replacing Machine Components
Rama Dani Eka Putra, Tessa Zulenia FitriShow Abstract | Download PDF | DOI: 10.31004/jestm.v4i2.187 | Check in Google Scholar
Three-dimensional printing (3D printing) technology has developed rapidly and offers innovative solutions in the manufacturing industry, especially for replacing damaged machine components. This research aims to analyze the perception and effectiveness of this technology as an alternative through empirical data from 300 respondents. The test results show that perceptions of 3D printing's ability to replace traditional components, the quality of the print results, and environmental benefits are significantly influenced by the respondent's level of experience (p-value < 0.05). However, aspects of cost efficiency and ease of application of technology show uniformity of perception across all groups of respondents, indicating the potential for broad application of technology. The normality and ANOVA tests performed confirmed the validity of the data, supporting the use of parametric statistical analysis. These findings underscore the ability of 3D printing to reduce costs and production time, while highlighting key challenges related to material strength and initial investment. This research recommends the development of materials, hardware, and ongoing education to increase the acceptance and effectiveness of the application of this technology in the manufacturing industry.
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Implementation of 5S in the Manufacturing Industry
Tessa Zulenia Fitri, Rama Dani Eka PutraShow Abstract | Download PDF | DOI: 10.31004/jestm.v4i2.189 | Check in Google Scholar
In an increasingly competitive industrial era, reducing waste and increasing operational efficiency has become a primary focus for many organizations. The 5S method, namely Seiri (Sort), Seiton (Arrange), Seiso (Clean), Seiketsu (Standardization), and Shitsuke (Discipline), which originated in Japan and was introduced into the Toyota production system in the 1950s, offers a systematic approach to creating an orderly and clean work environment. This research aims to explore the implementation of 5S at PT XY, with a focus on its impact on operational efficiency and reducing waste in the cement production process. The methodology used in this research includes literature studies and case studies, where data is collected through interviews, direct observation and documentation analysis. The research results show that implementing 5S can increase productivity, create a more organized work environment, and increase employee satisfaction. However, there are several challenges in implementation, especially in the aspects of standardization and discipline among employees. This research also identified problems faced in the project warehouse, such as a lack of personnel, insufficient area, and misunderstandings in shipping goods. Recommendations for improvement include employee training, establishing more comprehensive procedures, and grouping items by type to increase efficiency. Thus, it is hoped that the application of the 5S method at PT XY can create a better work culture and support the sustainability of operational efficiency practices in the future. These findings provide valuable insights for other industries looking to implement 5S to improve their performance and competitiveness.
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Design and Construction of a Stove Using Used Oil
Muhammad Fadhil Azzikri , Emon Azriadi, Hidayati RusnedyShow Abstract | Download PDF | DOI: 10.31004/jestm.v4i2.182 | Check in Google Scholar
The tool design stage uses the help of the AutoCAD application. The next stage is the manufacture of used oil-fueled stoves. Followed by testing the used oil-fueled stove. Based on the results of the two stoves that have been tested above, it is concluded that the time to boil 5 liters of water in a used oil-fired stove is 2 minutes faster than a gas stove, this can be proven in the results, namely the time to boil water in a used oil-fired stove is 7 minutes, while the time it takes to boil water in a gas stove is 9 minutes. The stove that is produced is able to be an alternative when the price of fuel in the form of gas soars so that it can be a solution for cooking with fuel at an affordable price. Researchers need to pay more attention to the selection of stove wall coating materials so as not to conduct excessive heat.
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Design and Construction of Tools for Fertilizing Palawija Plants
Mohd Asrul Baroqah, Emon Azriadi, Hanantatur AdeswastotoShow Abstract | Download PDF | DOI: 10.31004/jestm.v4i2.197 | Check in Google Scholar
Corn (Zea mays L.) is one of the important food crops widely cultivated in various parts of the world, including Indonesia. This plant has high economic value and serves as a source of food, animal feed, and industrial raw materials. This research aims to design and create a corn fertilizer tool utilizing easily obtainable materials such as pipes, used buckets, and hoses. This fertilizer tool is designed using SolidWorks 2020 software to ensure precise and functional design. In the testing process, this tool was evaluated to measure the accuracy and efficiency of fertilizer distribution. The tank on this tool has a capacity of 10 kg, which is sufficient to meet the fertilization needs with a dosage of 300 kg per hectare. With a corn plant population of 71,000 plants per hectare, each corn plant requires about 4 grams of NPK fertilizer. The tool testing was conducted in Salo Timur Village, and the results showed that this tool can effectively and efficiently distribute fertilizer according to the needs of each corn plant.
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The Influence of Service Quality on Patient Loyalty Through Patient Satisfaction at Beriman Hospital, Balikpapan City
Nurfitriani NurfitrianiShow Abstract | Download PDF | DOI: 10.31004/jestm.v4i2.221 | Check in Google Scholar
Customer loyalty is a key factor in a company’s success and profitability, driven by satisfaction and trust. Service quality is essential in achieving patient satisfaction, which in turn fosters loyalty. This study examines the effect of service quality on patient loyalty through satisfaction at Faith Hospital in Balikpapan City. Using a quantitative cross-sectional design, the research involved 378 outpatient respondents. The findings reveal a direct positive effect of service quality on patient satisfaction, indicating that improved service enhances satisfaction. Similarly, service quality directly influences patient loyalty, meaning better services encourage repeat visits. Patient satisfaction also directly impacts loyalty, showing that higher satisfaction strengthens loyalty. Additionally, an indirect effect exists, where service quality boosts loyalty by increasing satisfaction. The study recommends that hospital management maintain and enhance service quality to improve patient satisfaction and loyalty. Specific improvements include optimizing waiting room comfort, maintaining cleanliness, expanding parking areas, and reducing service wait times. Creating a positive first impression during visits is also crucial for long-term patient commitment. These measures can strengthen loyalty, ensuring patients continue choosing the hospital for future healthcare needs. By prioritizing service quality and patient satisfaction, Faith Hospital can foster lasting loyalty, supporting its long-term success and profitability.
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Identification of Urban Heat Island (UHI) in Bangkinang City Using Remote Sensing and Geographic Information System TechniquesUrban Heat Island (UHI Land Surface Temperature (LST) Citra Landsat
Shella Tri Ananda, Hanantatur Adeswastoto, Beny setiawanShow Abstract | Download PDF | DOI: 10.31004/jestm.v4i2.314 | Check in Google Scholar
Bangkinang, the capital of Kampar District with an area of 177.2 km² and a population of 39,793, experiences a tropical climate that contributes to elevated surface temperatures. Increasing population, vehicle emissions, and industrial activities intensify urban heat, while limited vegetation density exacerbates the Urban Heat Island (UHI) effect. This study analyzes surface temperatures in 2021, 2022, and 2023 using Landsat 7 ETM+ and Landsat 8 OLI/TIRS data. Land Surface Temperature (LST) was calculated using the Single Channel Algorithm (SCA) method, resulting in average temperatures of 27.755°C (2021), 26.644°C (2022), and 27.130°C (2023). The Pearson correlation between LST and field temperature from BPS produced an Rxy value of 0.226, indicating a weak correlation. The UHI threshold analysis shows that the area affected by UHI decreased consistently from 2021 to 2023.
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