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Angelia Putriana
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INDONESIA
Jurnal Sains dan Teknologi
Published by Yayasan Literasi Sains Indonesia
ISSN : 28284992     EISSN : 28284984     DOI : https://doi.org/10.55123/insologi
Core Subject : Health, Science, Education, Agriculture, Engineering,
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Dentistry Electrical & Electronics Engineering Energy Engineering Health Professions Industrial & Manufacturing Engineering Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Public Health Veterinary
INSOLOGI (Jurnal Sains dan Teknologi) diterbitkan 6 (enam) kali dalam setahun, yaitu pada bulan Februari, April, Juni, Agustus, Oktober dan Desember oleh Yayasan Literasi Sains Indonesia. Jurnal INSOLOGI adalah jurnal yang dapat diakses secara terbuka bagi para Peneliti, Dosen dan Mahasiswa yang ingin mempublikasikan hasil penelitiannya pada bidang ilmu sains dan teknologi. Jurnal INSOLOGI juga merupakan wadah informasi berupa hasil penelitian, studi kepustakaan, gagasan, aplikasi teori dan kajian analisis kritis dibidang perkembangan sains dan teknologi yang meliputi bidang ilmu pengetahuan alam (biologi, kimia, dan fisika), matematika dan statistik, perikanan/kelautan, kesehatan dan farmasetika, pertanian (agribisnis dan agroteknologi), keteknikan (teknik sipil, mesin, arsitektur, lingkungan, dan pertambangan), pengembangan/desain miniatur/rancang bangun dan bidang ilmu lainnya yang relevan dengan penelitian sains dan teknologi.
Arjuna Subject : Matematika - Matematika Terapan
Articles 601 Documents
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Pengaruh Pemadatan dan Substitusi Bubur Kertas terhadap Kuat Tekan Batako Ringan Struktural Dinding Muhammad Riswandy; Alfisyahrin Alfisyahrin; Mhd. Arief Diana; Michel Kasaf; Ari Juanda
INSOLOGI: Jurnal Sains dan Teknologi Vol. 5 No. 3 (2026): Juni 2026
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v5i3.8564

Abstract

This study analyzes the impact of compaction levels and paper pulp ratios on the compressive strength of papercrete blocks. The objective is to develop a lightweight building material that meets structural strength standards based on SNI 03-0348-1989. The base formulation combines cement and sand in a 1:3 ratio, with the sand volume substituted by paper at variations of 80%, 90%, and 100%. Density engineering was conducted by compressing the initial mixture volumes of 120%, 130%, 140%, and 150% into a standard size of 5 cm x 10 cm x 20 cm. Mechanical performance testing involved single blocks, paired blocks bonded with a 1 cm mortar joint, and conventional red bricks as a control comparison. Experimental results demonstrate that most papercrete variants qualify as structural materials within classes II, III, and IV. Only the 120PB100 sample failed to meet the standard classification. Interestingly, the standard red brick did not qualify for any strength class under the SNI framework. The highest mechanical performance was achieved by the 140PB80 variant, yielding a single-block compressive strength of 70.139 kg/cm². However, when evaluated in a paired formation, the strength of this 140PB80 sample reduced by 29.87% to 49.190 kg/cm².
Analisis Efektivitas Metode FMEA dalam Pengendalian Kualitas Proses Produksi Untuk Mengurangi Produk Cacat pada PT. XYZ Abdillah Gani Ramadhan; Fibi Eko Putra; Agus Andriyansyah
INSOLOGI: Jurnal Sains dan Teknologi Vol. 5 No. 3 (2026): Juni 2026
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v5i3.8604

Abstract

Quality control in manufacturing industries cannot be separated from the interaction between workers, machines, and work procedures, since most production failures stem not only from technical malfunctions but also from the dynamics of the socio-technical system as a whole. PT. XYZ, a paint manufacturing company in Bekasi, West Java, continues to face persistent defective product problems. Based on production data from January to October 2025, the number of defective products reached 625 units, representing 4.84% of total production of 12,977 units, which far exceeds the company's maximum tolerance standard of 2% per year. The two most dominant types of defects identified are color inconsistency with the established standard and the formation of bubbles on the paint product surface. This study aims to identify the types and causes of defective products, determine the most dominant risk factors, and formulate systematic improvement proposals. The Failure Mode and Effect Analysis (FMEA) method was applied to prioritize risks based on the Risk Priority Number (RPN), supported by the Pareto Diagram, Fishbone Diagram, and 5W+1H analysis. The results show that three causes were classified as critical, all exceeding the average RPN of 199.5: human error (RPN = 240), non-standard raw materials (RPN = 216), and poor product viscosity (RPN = 210). Improvement recommendations include routine operator training, consistent SOP enforcement, tighter raw material inspection, regular machine calibration, and strengthening inter-divisional communication between Warehouse, Quality Control, and Production divisions to reduce the defect rate below the 2% company standard.
Analisis Kualitas Udara dalam Ruang dengan Gangguan Fungsi Paru pada Siswa MAN 1 Aceh Besar Tiara Mairani; Agustina Agustina; Naimah Naimah; Wardiati Wardiati; Phossy Vionica Ramadhana
INSOLOGI: Jurnal Sains dan Teknologi Vol. 5 No. 3 (2026): Juni 2026
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v5i3.8642

Abstract

Indoor air pollution in schools often shows high PM2.5 concentrations, primarily due to outdoor air infiltration and dust suspended by student activities. This study aims to analyze the relationship between indoor air quality and lung function impairment among students at MAN 1 Aceh Besar, located in an area with high vehicle density. Using a descriptive-analytical design with a cross-sectional approach, the study involved 78 students selected through proportional random sampling. Results showed that 17.9% of students experienced lung function impairment. PM2.5 concentrations in 65.4% of classrooms were found to exceed the threshold limit value (TLV) of 25 µg/m³, although statistically, it did not show a significant relationship with lung function impairment (p=0.07). However, students in rooms with high PM2.5 levels were 3.8 times more likely to experience impairment compared to those in rooms with PM2.5 levels below the TLV. Physical factors such as temperature (74.4% abnormal) and humidity (50% abnormal) also showed no statistically significant relationship with the students' lung function. Conversely, a significant relationship was found between smoking habits and lung function impairment (p=0.008), where students who smoke are 4.8 times more likely to experience lung function impairment. In conclusion, smoking habits are a risk factor that can increase PM2.5 concentration, damage the respiratory tract, and trigger lung function impairment in students.
Klasifikasi Tingkat Kelunturan Warna Kain Menggunakan KNN, SVM, dan Random Forest Romindo Romindo; Triandes Sinaga; Kevin Bastian Sirait; Arosochi Yosua Daeli; Jepronel Saragih
INSOLOGI: Jurnal Sains dan Teknologi Vol. 5 No. 3 (2026): Juni 2026
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v5i3.8721

Abstract

The laundry industry faces challenges in maintaining service quality, particularly regarding fabric color fading after washing. Assessments that are still performed manually tend to be subjective and inconsistent, so a more objective automated classification system is required. This study aims to apply and compare three algorithms, namely KNN, SVM, and Random Forest, to classify the level of fabric color fading based on digital images. The features used comprise color in the RGB and HSV spaces as well as shape in the form of area and shape ratio, all extracted automatically. A total of 300 images were divided into 250 training data and 50 testing data, then mapped into three categories, namely not faded, fairly faded, and faded. The testing results show that Random Forest delivers the best performance with an accuracy of 0.96, followed by SVM at 0.94 and KNN at 0.88. All models faced difficulties in recognizing the minority class due to data imbalance. This study proves that the machine learning approach, particularly Random Forest, is able to assess color fading levels more accurately and consistently than manual evaluation, while supporting quality control in the laundry industry.
Hubungan Tingkat Pengetahuan dan Sikap terhadap Kejadian Penyakit Diabetes Mellitus di Gampong Lampanah Ranjo Kabupaten Aceh Besar Tahun 2025 Phossy Vionica Ramadhana; Irma Hamisah
INSOLOGI: Jurnal Sains dan Teknologi Vol. 5 No. 3 (2026): Juni 2026
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v5i3.8781

Abstract

Diabetes mellitus (DM) is a non-communicable disease whose prevalence continues to increase and has become a major public health problem worldwide, including in Indonesia. Adequate knowledge and positive attitudes toward DM are expected to promote preventive behaviors and reduce the risk of developing the disease. This study aimed to analyze the relationship between knowledge and attitudes and the incidence of diabetes mellitus in Gampong Lampanah Rajo. This study employed a quantitative design with a cross-sectional approach. A total of 41 respondents were selected using an accidental sampling technique. Data were collected using a structured questionnaire and analyzed through univariate and bivariate analyses using the Chi-square test with a significance level of 0.05. The results showed that most respondents did not have diabetes mellitus (90.2%), had good knowledge (80.5%), and demonstrated positive attitudes (85.4%). Among respondents with good knowledge, 90.9% did not have diabetes mellitus, compared to 87.5% among those with poor knowledge. Respondents with positive attitudes who did not have diabetes mellitus accounted for 88.6%, while all respondents with poor attitudes (100%) did not have diabetes mellitus. Statistical analysis revealed no significant relationship between knowledge (p=1.000) or attitudes (p=1.000) and the incidence of diabetes mellitus. It can be concluded that knowledge and attitudes were not associated with the incidence of diabetes mellitus among the study respondents.
Analisis Kapasitas Saluran Drainase terhadap Debit Rencana di Kelurahan Bidara Cina, Kecamatan Jatinegara, Jakarta Timur Anastasia Septya Wardaningrum; Jalaludin Jalaludin; Stevi Cahyani
INSOLOGI: Jurnal Sains dan Teknologi Vol. 5 No. 3 (2026): Juni 2026
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v5i3.8676

Abstract

Bidara Cina is a flood-prone area in East Jakarta due to high rainfall, limited channel capacity, and low elevation along the Ciliwung River. This study analyzes the existing drainage channels' capacity to accommodate design runoff discharge based on BMKG rainfall data and hydrological parameters. Methods include calculating design rainfall intensity (Gumbel/Mononobe method), design discharge (Rational Method), and existing capacity (Manning’s formula) using secondary data from BMKG, BIG, BPS, and East Jakarta Water Resources Sub-department. Main channel segments were selected as representative samples. Based on frequency analysis of 20-year extreme data (2006–2025) from Halim Perdanakusuma Station, the design rainfall intensity is 78.71 mm/hour for a 5-year return period and 96.60 mm/hour for a 10-year return period. Evaluation of 15 channel segments shows that macro channels (Ciliwung River and Ciliwung Waterway) and the main connecting channel (West Otista Raya Street) meet the required capacity. However, 7 secondary channel segments in densely populated areas (RW 06, RW 07, and RW 11) fail to meet capacity or overflow due to narrow dimensions and the lack of local retention polders.
Pengembangan Sistem Informasi Pendaftaran Santri Baru Berbasis Website Menggunakan Metode Addie Studi Kasus : Pondok Pesantren Sandar Madinatul Athfal Petanahan Kebumen Siti Nurhidayah; Endang Wahyuningsih
INSOLOGI: Jurnal Sains dan Teknologi Vol. 4 No. 4 (2025): Agustus 2025
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v4i4.5520

Abstract

Technological developments have updated the way to access information, including in the Islamic boarding school environment. The Sandar Madinatul Athfal Islamic Boarding School in Kebumen, which has been using a manual student registration system, faces various obstacles such as inefficiency, recording errors, and lack of online information. To overcome this, a student registration information system website was developed. The research was conducted from September 2024 to January 2025.”The data was obtained based on the results of observations at the Sandar Madinatul Athfal Petanahan Islamic Boarding School, Kebumen, interviews with students who manage the administration of the boarding school, literature studies, and also the results of filling out questionnaires. The method to develop the system is ADDIE which is a sequential stage from Analysis, Design, Development, and Implementation to Evaluation. Evaluation is done through functional testing (BlackBox Testing) and filling out questionnaires to 10 users, with an average score of 35.3 which was included in the "good" category. The results of the implementation showed that the system ran well and could simplify the registration process, increase efficiency, and can be a model for other Islamic boarding schools in the application of technology.”
Implementasi Metode Jacobi dan Gauss-Seidel pada Penyelesaian Sistem Persamaan Linear: Analisis Konvergensi dan Efisiensi Komputasi menggunakan Python Yuegilion Pranayama Purba; Victor Asido Elyakim P
INSOLOGI: Jurnal Sains dan Teknologi Vol. 5 No. 3 (2026): Juni 2026
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v5i3.8776

Abstract

Systems of linear equations are fundamental problems in numerical computation and are widely used in engineering, physics, economics, and computer science. Solving large systems of linear equations requires efficient numerical methods, particularly when the coefficient matrix is sparse or diagonally dominant. This study aims to compare the performance of the Jacobi and Gauss-Seidel methods in solving diagonally dominant systems of linear equations using Python. The experiments were conducted on three matrix sizes, namely 3×3, 5×5, and 10×10. The evaluation focused on the number of iterations, final error, Root Mean Square Error, computation time, and speedup. The implementation was carried out using Python 3.12 with the NumPy and Matplotlib libraries. The results show that both methods can produce numerical solutions close to the reference solution. However, the Gauss-Seidel method demonstrates better performance in all test scenarios. In the 10×10 matrix test, the Gauss-Seidel method reached convergence in 20 iterations, while the Jacobi method required 32 iterations. This indicates a 37.50% reduction in the number of iterations. The average speedup of Gauss-Seidel over Jacobi reached 1.85 times. These findings indicate that the Gauss-Seidel method is more efficient for solving diagonally dominant systems of linear equations in a Python-based computing environment.
Integrating Sustainability, Occupational Health and Safety, and Organizational Culture: A New Framework for Enhancing Corporate Performance in Indonesian Port Management Bondan Winarno; Moiko Sivatino; Eky Silizar Rahman; Aghissiva Antasya Rahma; Ela Noor Fithri Kumala
INSOLOGI: Jurnal Sains dan Teknologi Vol. 5 No. 4 (2026): Agustus 2026
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v5i4.8172

Abstract

This study examines the strategic integration of sustainability, occupational health and safety (OHS), and organizational culture in Indonesian port management to improve corporate performance and operational resilience. The research was conducted due to the increasing complexity of port activities, environmental challenges, workplace safety risks, and the need for adaptive organizational governance in supporting sustainable maritime development. The study aims to formulate a comprehensive and integrated framework that strengthens organizational effectiveness through the alignment of sustainability practices, OHS implementation, and organizational culture. This research employed a Systematic Journal Review (SJR) design by following the PRISMA guidelines to identify, screen, and evaluate relevant scientific publications from major international databases. Data were analyzed using thematic synthesis to ensure the credibility, consistency, and reliability of the findings. The results indicate that the integration of sustainability, OHS, and organizational culture contributes significantly to improving operational efficiency, employee productivity, environmental responsibility, and safety performance in port management systems. The findings further reveal that organizational culture functions as a strategic mediator that reinforces policy implementation, strengthens employee engagement, enhances communication effectiveness, and supports long-term organizational adaptation. Several reviewed studies also reported reductions in workplace accidents, improved environmental management, increased service quality, and stronger stakeholder trust. Therefore, the study concludes that an integrated management framework is essential for creating sustainable, safe, and high-performing port organizations in Indonesia.
Aktivitas Antibakteri Emulgel dan Uji Sifat Fisik Ekstrak Etanol Daun Sumambu terhadap Escherichia coli FNCC 0091 Maulana Tegar Adityanugraha; Ferli Eko Kurniantoro; Raodatul Fitri
INSOLOGI: Jurnal Sains dan Teknologi Vol. 5 No. 4 (2026): Agustus 2026
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v5i4.8307

Abstract

Sumambu leaves (Hyptis capitata Jacq.) can be utilized as a traditional medicinal remedy. However, the direct application of sumambu leaves on the skin is impractical and uncomfortable, so they are formulated into an emulgel dosage form. This study aims to evaluate the physical properties and antibacterial activity of sumambu leaves. This research is an experimental study. The test material was sumambu leaf powder, which was extracted using the maceration method with 96% ethanol as the solvent. The concentrated extract was then formulated into an emulgel and tested for its physical properties, including organoleptic characteristics, spreadability, adhesiveness, and pH. Antibacterial activity against Escherichia coli was tested using the well diffusion method. The antibacterial activity was indicated by the presence of inhibition zones in emulgels with concentrations of 5%, 10%, and 15%. The analysis used in this study was descriptive analysis. The results of the physical property tests showed that the emulgel of sumambu extract had good organoleptic properties, adhesiveness, and pH. However, its spreadability did not meet the standard criteria, as the required spread diameter for a good emulgel preparation is 5–7 cm. The antibacterial activity test results showed that the emulgel of sumambu leaf extract exhibited antibacterial activity against Escherichia coli at concentrations of 5%, 10%, and 15%, with average inhibition zone values of 18 mm, 22 mm, and 26 mm, respectively. These results indicate that the emulgel of sumambu leaf extract possesses antibacterial activity against Escherichia coli FNCC0091.

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