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INDONESIA
Jurnal Info Sains : Informatika dan Sains
Published by SEAN INSTITUTE
ISSN : 20893329     EISSN : 27977889     DOI : -
Core Subject : Science,
Computer Science & IT
urnal Info Sains : Informatika dan Sains (JIS) discusses science in the field of Informatics and Science, as a forum for expressing results both conceptually and technically related to informatics science. The main topics developed include: Cryptography Steganography Artificial Intelligence Artificial Neural Networks Decision Support System Fuzzy Logic Data Mining Data Science
Arjuna Subject : Ilmu Komputer (semua kategori) - Ilmu Komputer (Lain-Lain)
Articles 420 Documents
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Comparative Validation of NASA POWER and ERA5 Satellite-Based Meteorological Data Using BMKG Observations in Bandar Lampung, Indonesia Ayu Aprilia; Alka Budi Wahidin; Ahmad Faruq Abdurrahman; Surya Prihanto; Yusril Al-Fath
Jurnal Info Sains : Informatika dan Sains Vol. 15 No. 02 (2025): Info sains, Desember 2025
Publisher : SEAN Institute

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Abstract

This study aims to evaluate the performance of satellite reanalysis data from NASA POWER and Copernicus ERA5. BMKG data was used as a reference to compare the accuracy of satellite reanalysis data. Data was specifically collected from Lampung Province for the years 2022 to 2024. The data compared includes temperature, humidity, wind speed, and rainfall. The temperature data from ERA5 provided consistent and accurate results with a MAE of 1.82 and an r of 0.59. POWER showed commendable performance in capturing relative humidity with a MAE of 5.05% and an r of 0.33. For the wind speed variable, both models showed underestimation for Copernicus and overestimation for NASA POWER. For rainfall (RR), both models failed to predict extreme weather. NASA POWER showed an MAE of 8.59 mm/day and Copernicus showed a value of 7.68 mm/day for the rainfall variable. Future research can focus on bias correction results and machine learning to overcome the challenges faced by satellite data in predicting rainfall.
Ulon Coffee Shop's Web-Based Raw Material Stock Management Information System Using the Just-In-Time Method Pajar, Rahmat; Kusnadi , Kusnadi; Suwandi , Suwandi
Jurnal Info Sains : Informatika dan Sains Vol. 15 No. 02 (2025): Info sains, Desember 2025
Publisher : SEAN Institute

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Abstract

Raw material stock management is an important aspect in the smooth operation of the Food and Beverage (F&B) business. Coffee Shop Ulon, which operates in the coffee beverage sector, still records stock manually, which often causes problems such as the accumulation of materials with a short shelf life or stock shortages that impact service. To overcome this, an information system is needed that is able to manage inventory more efficiently, accurately, and integrated. This study aims to build a Web-Based Raw Material Stock Management Information System Using the Just In Time (JIT) Method with the PHP (Laravel) programming language and MySQL as a database. The implementation of the JIT method is expected to help Coffee Shop Ulon ensure the availability of raw materials according to needs, reduce waste due to expired materials, and prevent stock shortages. The results of this study are a web-based information system with features for recording incoming and outgoing raw materials, expiration reports (waste), minimum stock reminders, and recording supplies from suppliers. With this system, stock management at Coffee Shop Ulon becomes more organized, efficient, and supports fast and accurate decision making.
Experimental and Numerical Analysis of Plate Heat Exchanger Performance with Modified Chevron Angle Geometry: Effects on Heat Transfer Coefficient and Pressure Drop Rahmad, Rahmad
Jurnal Info Sains : Informatika dan Sains Vol. 15 No. 02 (2025): Info sains, Desember 2025
Publisher : SEAN Institute

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Abstract

Plate heat exchangers (PHEs) are widely utilized in industrial thermal management systems due to their compact design and high thermal efficiency. The optimization of chevron angle geometry plays a crucial role in enhancing heat transfer performance while managing pressure drop constraints. This comprehensive study presents an experimental and numerical investigation of PHE performance characteristics with modified chevron angle configurations ranging from 30° to 75°. Experimental procedures utilized water-to-water heat transfer systems with temperature measurement accuracy of ±0.1°C and pressure differential transducers calibrated to ±0.25%. Reynolds numbers were varied between 500 and 2500 to capture both laminar and turbulent flow regimes. Computational Fluid Dynamics (CFD) simulations employing ANSYS Fluent with realizable k-ε turbulence models were conducted with mesh element densities exceeding 14.8 million elements to ensure grid independence. Results demonstrate that the overall heat transfer coefficient increases by approximately 21% when chevron angle increases from 60° to 120°, while friction factors exhibit non-linear variation patterns across different Reynolds number ranges. The Nusselt number correlations developed from experimental data show strong correlation coefficients (R² > 0.95) with published empirical models. Pressure drop analysis reveals that lower chevron angles (30°) impose 2.5 times greater pressure drop penalties compared to higher angles (60°-75°) at equivalent Reynolds numbers. Modified geometry configurations demonstrated thermal enhancement factors ranging from 1.15 to 1.68 depending on operational parameters. These findings establish a scientific foundation for optimal plate heat exchanger design in applications requiring balanced thermal performance and hydraulic efficiency, with significant implications for energy conservation in industrial heat recovery systems.
Systematic Study: Data and Information Management in Management Information Systems in the Digital Era Andes Prayuda Yunanda; Jhon Veri
Jurnal Info Sains : Informatika dan Sains Vol. 15 No. 02 (2025): Info sains, Desember 2025
Publisher : SEAN Institute

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Abstract

The development of information technology in the digital era has revolutionized the way organizations manage data and information. Management Information Systems (MIS) are a strategic solution for improving the efficiency, accuracy, and security of information management through the integration of modern technologies such as cloud computing, big data analytics, artificial intelligence (AI), and the Internet of Things (IoT). This study uses a Systematic Literature Review (SLR) method on six selected articles to identify the benefits, challenges, and strategies for implementing MIS. The study results show that a well-managed MIS can provide real-time, relevant, and error-free information, thus supporting strategic decision-making. Key obstacles include the digital divide, cybersecurity issues, low digital literacy, and infrastructure limitations. This study recommends a sustainable strategy that includes improving digital literacy, technological updates, data protection policies, and human resource training. With proper management, MIS has the potential to create an adaptive, secure, and highly competitive digital ecosystem.
Radiological Picture of Ocular Trauma in Ct-Scan of the Head with Orbital Centering: Literature Review Fitri Nurul, Andi; Irsandy Syahruddin, Febie; Assagaf, Munjia
Jurnal Info Sains : Informatika dan Sains Vol. 15 No. 02 (2025): Info sains, Desember 2025
Publisher : SEAN Institute

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Abstract

Ocular trauma is a leading cause of preventable vision impairment and blindness, with its incidence continuing to rise, including in Indonesia. Computed Tomography (CT-Scan) plays an important role in early diagnosis, injury assessment, and initial clinical decision-making for adult ocular trauma patients. This study aims to review the latest scientific evidence on the use of CT-Scan in managing adult ocular trauma using the PRISMA method. This is a systematic literature review covering sources from international databases and national journals (2020–2025). Of the 120 articles identified, 20 met the inclusion criteria and were analyzed narratively and descriptively. The results show that CT-Scan has high sensitivity in detecting orbital rupture, orbital fractures, intraocular foreign bodies, and vitreous hemorrhage. CT-Scan is also crucial in determining the Ocular Trauma Score (OTS) and visual prognosis, as well as aiding decision-making in emergency rooms and ICUs. Overall, CT-Scan is a fast, accurate diagnostic modality with significant prognostic value in managing adult ocular trauma
Indonesian Cultural Diplomacy: Leveraging National Identity to Build a Positive Global Image Saiman, Saiman
Jurnal Info Sains : Informatika dan Sains Vol. 13 No. 03 (2023): Informatika dan Sains , Edition December 2023
Publisher : SEAN Institute

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As a country with high cultural diversity, Indonesia has significant potential to strengthen its position and influence in international relations through soft power. This study aims to analyze the strategy, implementation, and effectiveness of Indonesian cultural diplomacy in introducing national values, traditions, and character to the global community. The research employed qualitative methods with a descriptive approach, based on an analysis of literature, policy documents, and various cultural diplomacy activities such as arts festivals, cultural performances, culinary arts, and tourism promotion. The results indicate that Indonesian cultural diplomacy plays a crucial role in building a positive national image globally through the utilization of national identities such as art, culinary arts, education, film, digital media, and UNESCO intangible cultural heritage. These various programs have been effective in increasing global understanding and appreciation of Indonesia, although their implementation still faces obstacles such as lack of inter-agency coordination, budget constraints, suboptimal use of digital technology, low human resource competency, and the absence of an integrated cultural narrative. This study also found that solutions such as strengthening coordination, collaboration with the private sector and the diaspora, optimizing digital technology, increasing human resource capacity, and developing a national cultural narrative can increase the effectiveness of Indonesian cultural diplomacy. Overall, cultural diplomacy has proven to be a relevant and potent strategy for strengthening Indonesia's soft power and global image.
Implementation of Mikrotik Wireless Backhaul for Internet Provisioning in Baturaja Village to Support Digital Transformation Alfansa Yusuf; Adi Wibowo
Jurnal Info Sains : Informatika dan Sains Vol. 15 No. 02 (2025): Info sains, Desember 2025
Publisher : SEAN Institute

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This study analyzes the implementation of a wireless backhaul network using Mikrotik devices to provide stable internet access for Baturaja Village, Sungkai Utara District, which has not yet been reached by fiber optic infrastructure. The main objective is to develop an alternative network using a point-to-point (PtP) wireless link from the District Office as the internet source to the Village Office as the recipient. The research adopts the Network Development Life Cycle (NDLC), covering initiation, analysis, design, implementation, testing, and monitoring stages. The results show that the PtP backhaul using Mikrotik LHG/SXT successfully provides stable connectivity with average RSSI –52 dBm, CCQ above 90%, latency under 15 ms, and no significant packet loss. This connectivity improves the performance of administrative services, the Village Information System (SID), and supports overall digital transformation efforts. The study concludes that wireless backhaul is an effective, low-cost solution for rural areas lacking fiber optic access
Sentiment Analysis of ChatGPT Application Reviews Using the BERT Algorithm Sukmana, Farhan Naufal; Aji Primajaya; Aries Suharso
Jurnal Info Sains : Informatika dan Sains Vol. 15 No. 02 (2025): Info sains, Desember 2025
Publisher : SEAN Institute

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The rapid growth of generative artificial intelligence applications, particularly ChatGPT, has resulted in a significant increase in user reviews on the Google Play Store. These reviews serve as valuable sources for understanding user perceptions, experiences, and concerns. This study aims to analyze sentiment in Indonesian-language reviews of the ChatGPT application using the Bidirectional Encoder Representations from Transformers (BERT) algorithm combined with the Knowledge Discovery in Database (KDD) methodology. The dataset was collected using web scraping via the google-play-scraper library, producing 1,806 reviews after data cleaning and preprocessing. The dataset was divided into training and testing sets with an 80:20 ratio. IndoBERT was employed as the pre-trained model. Evaluation results show that the model successfully classified positive, negative, and neutral sentiments with an accuracy of 93%, precision of 87%, recall of 83%, and an F1-score of 85%. Although performance on the neutral class was lower due to dataset imbalance, the model demonstrated strong overall results. This study confirms that BERT is effective for sentiment analysis of application reviews and can serve as a reference for improving application service quality by understanding user opinions.
Characteristics of Patients with Post-Traumatic Stress Disorder (PTSD) at Ibnu Sina Teaching Hospital, Makassar Nilam, Nilam; Vitayani, Sri; Sanusi, Mayamariska; Jaya, Muhammad Alim; Karsa, Nevi Sulvita
Jurnal Info Sains : Informatika dan Sains Vol. 15 No. 02 (2025): Info sains, Desember 2025
Publisher : SEAN Institute

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Background: Post Traumatic Stress Disorder (PTSD) is a trauma- and stressor-related mental disorder that can significantly impair psychological, social, and occupational functioning. Despite increasing awareness of PTSD in Indonesia, local data describing patient characteristics remain limited, particularly in teaching hospital settings. Objective: This study aimed to describe the demographic characteristics, types of traumatic exposure, and dominant symptom clusters of PTSD patients treated at Ibnu Sina Makassar Teaching Hospital. Methods: This descriptive cross-sectional study used medical records of PTSD patients treated at the Psychiatric Outpatient Clinic of Ibnu Sina Makassar Teaching Hospital from September 2024 to September 2025. All eligible patients were included using total sampling. Data were analyzed descriptively. Results: Most patients were aged 19–39 years (60.0%) and were female (62.0%). The majority had a senior high school education (60.0%) and were students (46.0%). Interpersonal conflict was the most common traumatic exposure (32.0%), followed by physical violence (26.0%) and occupational trauma (18.0%). Intrusive symptoms were the most frequently reported PTSD symptom cluster (38.0%), followed by negative alterations in mood and cognition (26%) and arousal and reactivity symptoms (22%). Conclusion: PTSD at Ibnu Sina Makassar Teaching Hospital predominantly affected young adults, females, and students, with interpersonal trauma as the leading precipitating factor. These findings highlight the need for targeted, trauma-focused mental health interventions and provide valuable local epidemiological data to support evidence-based PTSD management and service planning.
Tourism Transformation in the Digital Era: The Role of Information Technology in Enhancing Destination Competitiveness RD. Hera Merdeka Khazinatul Khaeriah; Raden Aries Sofwan Zarkasih
Jurnal Info Sains : Informatika dan Sains Vol. 16 No. 01 (2026): Info sains, 2026
Publisher : SEAN Institute

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The development of information technology has driven significant transformations in the tourism sector, particularly in efforts to increase the competitiveness of tourist destinations in the digital era. This study aims to analyze the role of information technology in enhancing the competitiveness of tourist destinations and identify the various challenges faced in the digital transformation process of tourism. The research method used is a descriptive qualitative approach, with data collection techniques through literature reviews of books, scientific journals, policy reports, and publications related to digital tourism and smart tourism. The results indicate that information technology plays a crucial role in increasing destination visibility through digital marketing, enriching the tourist experience through the use of interactive technology, improving the efficiency of data-driven destination management, and facilitating access to and services for tourism. Furthermore, the transformation toward the concept of smart tourism provides added value for tourists and supports more sustainable destination management. However, the implementation of information technology still faces various challenges, including limited digital infrastructure, quality of human resources, readiness to adapt to technology, data security and privacy, unstandardized regulations, budget constraints, and changing tourist preferences. This study concludes that the successful use of information technology to increase the competitiveness of tourist destinations requires a comprehensive and collaborative approach between the government, industry players, and other stakeholders. Strengthening infrastructure, increasing human resource capacity, and adapting and integrated policies are key to supporting sustainable digital transformation in tourism.

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