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INDONESIA
JURNAL Al-AZHAR INDONESIA SERI SAINS DAN TEKNOLOGI
Published by Universitas Al Azhar Indonesia
ISSN : 20879725     EISSN : 23558059     DOI : -
Core Subject : Health, Science, Engineering,
Biochemistry, Genetics & Molecular Biology Computer Science & IT Electrical & Electronics Engineering Industrial & Manufacturing Engineering Public Health
Jurnal AL-AZHAR INDONESIA SERI SAINS DAN TEKNOLOGI terbit 2 kali dalam setahun yaitu pada bulan Maret dan September adalah jurna; ilmiah yang mempublikasikan artikel hasil penelitan ilmiah dan ide-ide di bidang sains dan teknologi. Jurnal ini berfokus pada bidang teknik industri, teknik elektro, teknik infromatika, biologi, gizi dan teknologi pangan.
Arjuna Subject : Umum - Umum
Articles 332 Documents
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Efektivitas Night Guard dalam Menurunkan Tooth Wear dan Implikasi terhadap Performa Atlet Bulu Tangkis: Tinjauan Literatur Cindy Hendrawan; Sheryn Marcha Ramaniasari; Dian Samuel Hasudungan; Nurul Hidayati; Yessy Andriani Fauziah; Eveline Yulia Darmadi
JURNAL Al-AZHAR INDONESIA SERI SAINS DAN TEKNOLOGI Vol 11, No 2 (2026): Mei 2026
Publisher : Universitas Al Azhar Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36722/sst.v11i2.5507

Abstract

Tooth wear is a progressive loss of dental hard tissue commonly associated with parafunctional activities such as bruxism and clenching. In badminton athletes, physiological and psychological stress during training and competition may increase sleep bruxism activity, thereby accelerating occlusal surface wear and disrupting the stomatognathic system. The use of night guard or occlusal splint has been recommended as a conservative therapy to stabilize occlusal force distribution, reduce destructive tooth contact and decrease masticatory muscle hyperactivity during bruxism episodes. This literature review was conducted using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) approach to evaluate the effectiveness of night guard use in reducing tooth wear and to examine its implications for focus and concentration in badminton athletes within the field of sports dentistry. Literature searches were performed through PubMed, Scopus, ScienceDirect and Google Scholar for articles published between 2020 and 2025. The findings indicate that night guards are effective in reducing bruxism activity, minimizing excessive occlusal load and providing protective effects on enamel and dentin. Occlusal stabilization may also influence neuromuscular function and athletic performance readiness. However, evidence regarding its direct effects on athletes’ focus and concentration remains limited and requires further investigation.Keywords – Bruxism, Night Guard, Tooth Wear.
Pemodelan Emosi Pengguna Berbasis Ulasan Digital Melalui Integrasi Natural Language Processing dan Ilmu Sosial Komputasional Adinda Riska Safitri; Andi Arniaty Arsyad
JURNAL Al-AZHAR INDONESIA SERI SAINS DAN TEKNOLOGI Vol 11, No 2 (2026): Mei 2026
Publisher : Universitas Al Azhar Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36722/sst.v11i2.5425

Abstract

Internal company apps such as PT Astra Honda Motor’s AHM Mobile receive a wide range of reviews on the Google Play Store that contain users’ emotional expressions. However, the emotional dimension of these reviews has rarely been systematically analyzed, as most previous studies have focused only on positive, negative, and neutral sentiments. This study aims to analyze the emotions of AHM Mobile users through the integration of Natural Language Processing (NLP) and Computational Social Science perspectives. The dataset consists of 2.117 reviews obtained via web scraping and classified into six emotional categories: angry, sad, afraid, neutral, surprised, and happy. The annotation process was conducted by two annotators in the fields of clinical psychology and linguistics using a Seniority-Based Tie-Breaking mechanism with a Cohen’s Kappa value of 0.636. Emotion classification was performed using a combination of TF-IDF and Logistic Regression as classical models, as well as IndoBERT as the main model. Evaluation results show that the classical model achieved an accuracy of 0.43 and a macro-F1 score of 0.183, while IndoBERT reached an accuracy of 0.7831 and a macro-F1 score of 0.5582. Collective emotion analysis indicates that anger dominates user reviews and is strongly correlated with user ratings, as evidenced by a Spearman correlation coefficient of 0.7141. These results indicate that sentiment analysis using the IndoBERT model can provide more effective insights for evaluating the quality of usage of internal corporate applications in Indonesia.Keywords - Computational Social Science (CSS), Emotion Classification, IndoBERT, Natural Language Processing (NLP), User Reviews of the AHM Mobile Application.
Assessing the Accuracy of PCR and Slit-Skin Smear Methods for Diagnosing Suspected Leprosy: An Evidence-Based Case Report Ita Marlita Sari; Salsabilah Fahra Azzahra; Fatimatuz Zahro; Lita Salsabila; Siti Magfirotul 'Aini; Ratu Annisa Mutiara
JURNAL Al-AZHAR INDONESIA SERI SAINS DAN TEKNOLOGI Vol 11, No 2 (2026): Mei 2026
Publisher : Universitas Al Azhar Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36722/sst.v11i2.5079

Abstract

Leprosy (Hansen’s disease) is a chronic infectious condition caused by Mycobacterium leprae, affecting the skin, peripheral nerves, and mucosa. The slit-skin smear (SSS) is a standard diagnostic method but has limited sensitivity, especially in paucibacillary cases. Polymerase Chain Reaction (PCR) offers higher sensitivity by detecting M. leprae DNA, even in early or subclinical infections. This study aimed to compare the diagnostic accuracy of PCR and SSS in suspected leprosy cases. This Evidence-Based Case Report (EBCR) was developed through a structured literature search and critical appraisal of diagnostic accuracy studies using PubMed and Cochrane databases. Eligible cross-sectional studies comparing PCR and SSS were critically appraised for validity, relevance and applicability based on OCEBM and QUADAS-2. Two studies met the inclusion criteria and were analyzed based on sensitivity and specificity for M. leprae detection. Both studies demonstrated that PCR had markedly higher sensitivity than SSS. Khatoon et al. (2021) reported PCR detecting 66% of cases versus 34% by SSS, while Siwakoti et al. (2016) found 72% versus 18%, respectively. PCR exhibits advantages diagnostic accuracy compared to SSS, particularly for early or paucibacillary leprosy. Although more costly, PCR is recommended as a confirmatory tool to enhance early diagnosis and prevent disability.Keywords – Diagnosis, Leprosy, Mycobacterium Leprae, Polymerase Chain Reaction, Slit-Skin Smear
Efektivitas Limbah Kulit Bawang Merah (Allium Cepa L. Var Bima Brebes) sebagai Karbon Aktif Mohammad Jusuf Randi; Yan El Rizal Unzilatirrizqi D; Melly Fera
JURNAL Al-AZHAR INDONESIA SERI SAINS DAN TEKNOLOGI Vol 11, No 2 (2026): Mei 2026
Publisher : Universitas Al Azhar Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36722/sst.v11i2.5533

Abstract

Shallot (Allium Cepa L. Var. Bima Brebes) skin is very abundant in Brebes. The cellulose content of shallot skin, with a value of 41-50%, has great potential to be processed into activated carbon. This study was conducted with the aim of analyzing activated carbon made from Brebes red onion skin with parameters of water content, ash content, volatile matter content, and pure carbon content. The method used was experimental, by conducting a carbonization process of red onion skin for 60 minutes and carrying out a carbon activation process using 3M phosphoric acid (H₃PO₄) activator and analyzing the resulting activated carbon. The results indicated that the water content of activated carbon was 9.83%, ash content was 9.24%, volatile matter content was 22.32%, and pure carbon was 65.83%. Activated carbon has an adsorption capability that works well for methylene blue but not for iodine. Shallot skin is effective for use as activated carbon due to its adsorption capacity for methylene blue of 130.95 mg/g, enabling it to adsorb molecules with a size of approximately 1 nm.Keywords - Activated Carbon, Pure Carbon, Shallot Skin.
Sistem Monitoring dan Peramalan Energi Listrik Berbasis Moving Average Ordo 3 dan IOT Muhammad Sholahudin Sunardiyanta; Sirojul Hadi
JURNAL Al-AZHAR INDONESIA SERI SAINS DAN TEKNOLOGI Vol 11, No 2 (2026): Mei 2026
Publisher : Universitas Al Azhar Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36722/sst.v11i2.5298

Abstract

The use of electrical energy in boarding houses often results in unintentional energy waste, because residents tend to leave their rooms without unplugging electrical devices, which causes increased electricity consumption and higher costs. This study aims to design an IoT-based electrical energy monitoring and control system for boarding rooms. This system uses an ESP32 microcontroller connected to a WiFi network, while the energy meter is equipped with a PZEM-004T sensor to measure electrical energy parameters. Measurement data is transmitted to a database for monitoring purposes and displayed on the user's website. This study applies the third-order Moving Average forecasting method by utilizing energy measurement data obtained from the PZEM-004T sensor, which is processed by a web server. The forecasting results show good accuracy, with errors ranging from 0.99–18.65% compared to the actual values. Furthermore, the measurement results show satisfactory performance, with parameter measurement errors ranging between 0–0.8%. This system is capable of providing accurate information about electrical energy consumption, estimating remaining electrical energy, and issuing notifications when available electrical energy falls below a predetermined threshold. Therefore, the proposed system is considered reliable and accurate for monitoring, controlling, and predicting electrical energy, thus supporting efficient energy management.Keywords – 3rd order Moving Average, Energy Monitoring, ESP32, Forecasting, Internet of Things.
Analisis Potensi dan Lokasi Optimal Pembangkit Listrik Tenaga Bayu Skala Kecil di Lingkungan Kampus ITPLN menggunakan Data NASA POWER dan Simulasi HOMER Muhammad Fachrizal Faqih Hilmawan; Fidelis Kisnardi Kuncoro Butarbutar; Novita Permatasyania; Muhammad Yusril Shandi; Andi Makkulau
JURNAL Al-AZHAR INDONESIA SERI SAINS DAN TEKNOLOGI Vol 11, No 2 (2026): Mei 2026
Publisher : Universitas Al Azhar Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36722/sst.v11i2.5464

Abstract

Pemanfaatan energi angin sebagai sumber energi terbarukan menjadi salah satu upaya penting dalam mendukung pengurangan emisi karbon, khususnya pada perkotaan. Penelitian ini bertujuan untuk menganalisis potensi energi angin serta model Pembangkit Listrik Tenaga Bayu (PLTB) di area Kampus Institut Teknologi PLN (ITPLN). Metode penelitian ini bersifat eksperimental dilakukan melalui pengukuran kecepatan angin di beberapa titik lokasi yang sudah peneliti tentukan dari data NASA POWER dan untuk ketinggian serta simulasinya menggunakan perangkat lunak HOMER. Penelitian ini menghasilkan rekomendasi lokasi dan konfigurasi PLTB yang optimal untuk diimplementasikan di lingkungan Kampus ITPLN. Hasil analisis dan simulasi menunjukan bahwa potensi energi angin tertinggi terdapat di lokasi Gedung A ITPLN, dengan kecepatan angin rata-rata sekitar 3,66 m/s sehingga menghasilkan daya keluaran rata-rata per bulan yaitu sebesar 182,63 Watt pada ketinggian 50 meter. Kondisi ini menjadikan lokasi tersebut sebagai area yang paling optimal untuk pemasangan sistem Pembangkit Listrik Tenaga Bayu (PLTB). Penelitian ini diharapkan dapat menjadi dasar pengembangan kampus berbasis energi terbarukan serta mendukung implementasi energi hijau di kawasan urban.Keywords - HOMER, Institute of Technology PLN, NASA POWER, Renewable Energy, Wind Power Plant.
Penerapan Strategi Produksi Bersih untuk Peningkatan Efisiensi dan Penurunan Dampak Lingkungan Pada UMKM Rolling Door Tyara Puspaningrum; Azizah Putri Jodea; Muhammad Fadil Attala; Ratu Sabrina Fahira
JURNAL Al-AZHAR INDONESIA SERI SAINS DAN TEKNOLOGI Vol 11, No 2 (2026): Mei 2026
Publisher : Universitas Al Azhar Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36722/sst.v11i2.5479

Abstract

Micro, Small, and Medium Enterprises (MSMEs) play a significant role in the national economy but often face challenges in resource efficiency and waste management. This study analyzes the production process of a rolling door assembly and installation of BS MSME to identify inefficiencies and formulate feasible cleaner production strategies. The methodology involves a quick scan audit, production process mapping, and mass balance analysis, and formulate cleaner production strategies. The results indicate that most waste originates from scrap metal, excess lubricants, and paint or thinner residues. Based on the quick scan and economic evaluations, six out of seven cleaner production options are feasible for implementation. These options include establishing Standard Operating Procedures (SOPs), transitioning to water-based paint, mandating personal protective equipment (PPE), maintaining raw material and energy log sheets, and implementing a system to shut down idle equipment. Implementing these measures can enhance operational efficiency, mitigate environmental pollution, and improve occupational safety. Consequently, applying cleaner production concepts in BS MSMEs serves as an effective approach to achieving sustainable, eco-friendly manufacturing, providing a replicable model for similar MSMEs in the metal sector.Keywords – Cleaner Production, Mass Balance, Micro Small and Medium Enterprises, Quick Scan, Resource Efficiency, Rolling Door.
Pengaruh Variasi Lama Waktu Perebusan terhadap Karakteristik Fisikokimia Tepung Kluwih Termodifikasi dengan Metode Perebusan-Pendinginan Lukman Azis; Azzahra Putri Diandra; Lumina Astrid Utami; Hamidatun Hamidatun
JURNAL Al-AZHAR INDONESIA SERI SAINS DAN TEKNOLOGI Vol 11, No 2 (2026): Mei 2026
Publisher : Universitas Al Azhar Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36722/sst.v11i2.5468

Abstract

Kluwih (Artocarpus camansi) is an underutilized starch-rich crop with promising potential for development as a functional food ingredient through starch modification. This study aimed to analyse the physicochemical properties of modified kluwih flour produced via a boiling–cooling process. A completely randomized design (CRD) with a single factor namely boiling time (0, 5, 10, and 15 min) was applied, followed by cooling and drying. The evaluated parameters included proximate composition (moisture, ash, fat, protein, and carbohydrate by difference), amylose and amylopectin contents, resistant starch, and color characteristics (L, a*, b*). Boiling time significantly influenced most physicochemical attributes (p < 0.05). Prolonged boiling increased moisture, carbohydrate, and resistant starch contents, while decreasing fat, protein, ash, and amylose levels. The highest resistant starch content (16.74 g/100 g) was achieved at 15 min of boiling. These changes are attributed to starch gelatinization during heating and subsequent retrogradation upon cooling. Furthermore, boiling duration significantly affected flour brightness. In conclusion, the boiling–cooling method effectively modified the physicochemical characteristics of kluwih flour. A 15-min boiling treatment optimized resistant starch formation, highlighting its potential for functional food applications.Keywords - Boiling–Cooling, Kluwih, Modified Flour, Proximate Composition, Resistant Starch.
Analisis dan Perancangan UI/UX pada Website E-Campuz Umnu Kebumen Menggunakan Metode User Centered Design (UCD) Ririn Melisa amelia; Fersellia Fersellia
JURNAL Al-AZHAR INDONESIA SERI SAINS DAN TEKNOLOGI Vol 11, No 2 (2026): Mei 2026
Publisher : Universitas Al Azhar Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36722/sst.v11i2.5539

Abstract

The development of digital academic systems requires universities to provide websites with good usability and user experience aspects. However, the E-Campuz website of Universitas Ma’arif Nahdlatul Ulama Kebumen still has several UI/UX problems, such as unattractive interfaces, less intuitive navigation, and inconsistent interface elements. This study aims to analyze and design the UI/UX of the E-Campuz website using the User Centered Design (UCD) method. Data collection was conducted through observation, interviews, and questionnaires involving 100 respondents selected using the Slovin formula from a population of 3,388 students with a 10% error rate. System evaluation used the System Usability Scale (SUS) and User Experience Questionnaire (UEQ) methods. The results showed that the average SUS score increased from 61.35 before redesign to 70.4 after redesign, indicating that the system reached the acceptable category with good usability. In addition, all UEQ dimensions obtained positive mean values, with the highest score on the Novelty dimension of 1.14. These results indicate that the redesigned interface was able to improve usability and provide a better user experience for users. Therefore, the implementation of the UCD method can support the development of a more effective, efficient, and user-oriented academic information system.Keywords - E-Campuz, UCD, UI/UX Design.
Variasi pH terhadap Kinerja Elektrokoagulasi dan Efisiensi Penyisihan Logam Berat Pb, Cd, dan Ni dari Limbah Artifisial Agung Nasrullah; Muhrinsyah Fatimura; Reno Fitriyanti
JURNAL Al-AZHAR INDONESIA SERI SAINS DAN TEKNOLOGI Vol 11, No 2 (2026): Mei 2026
Publisher : Universitas Al Azhar Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36722/sst.v11i2.5544

Abstract

Liquid waste containing heavy metals such as lead (Pb), cadmium (Cd), and nickel (Ni) is a serious environmental problem because it is toxic and difficult to degrade naturally. One effective method to overcome this problem is electrocoagulation using aluminum electrodes. The purpose of this study was to determine the effect of pH variations on the removal efficiency of Pb, Cd, and Ni metals using the electrocoagulation method on artificial waste. The study was conducted with pH variations of 3, 5, 7, 9, and 11, with an initial concentration of each metal of 20 mg/L. The parameters analyzed included the final concentration and metal removal efficiency. The results showed that pH significantly affected the performance of electrocoagulation, with optimum efficiency obtained at pH 9. The highest removal efficiency for each metal was Pb at 99.35%, Cd at 97.50%, and Ni at 99.70%. Under these conditions, Al(OH)₃ species are formed, which act as active coagulants in the adsorption and flocculation of heavy metals. These results indicate that the electrocoagulation method is highly effective for treating waste containing heavy metals.Keywords - Aluminum, Electrocoagulation, Heavy Metals, Ph, Removal Efficiency.

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