Article Per Year (5 Year)
p-Index From 2020 - 2025
1.648
P-Index
This Author published in this journals
All Journal Journal of Applied Geospatial Information Jurnal Kelautan Nasional Eksakta : Berkala Ilmiah Bidang MIPA Jambura Journal of Electrical and Electronics Engineering Computer Science and Information Technologies Jurnal Teknik Informatika (JUTIF) JEECS (Journal of Electrical Engineering and Computer Sciences) Jurnal Pengabdian Masyarakat Bangsa
Alajuri, M Hasbi Sidqi
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences

Published : 10 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 10 Documents
Search

 1 
Measurement and Analysis of Acoustic Backscatter Value for Bottom Classification of waters Tidung Island M Hasbi Sidqi Alajuri; Henry M Manik; Sri Pujiyati
Journal of Applied Geospatial Information Vol 5 No 2 (2021): Journal of Applied Geospatial Information (JAGI)
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jagi.v5i2.3511

Abstract

Sediment in a water has an important role for organisms, namely as a habitat, a place for foraging for food, and a place for spawning. These sediment can affect the composition of organisms in the water. The purpose of this study is to calculate the value of acoustic backscatter for the classification of the bottom of the water and to see the effect of sediment grain size on the backscatter value obtained from a single beam acoustic instrument. Data collection was carried out from 10 to 12 June 2021 in the water of Tidung Island, Seribu Islands, using the SIMRAD EK-15 single beam, single frequency 200 kHz instrument. Sediment sampling was carried out at 13 stations. The results showed that the waters of Tidung Island were dominated by muddy substrate which was classified based on the Surface Backscattering Strength (SS) value. Meanwhile, the grain size of the sediment affects the SVb value, where the large the grain size of the bottom sediment, the SVb value will be higher. The higher SVb value the SS value will be higher. Keywords: Bottom Classification, Acoustic Backscatter, Tidung Island
Pengukuran dan Analisis Nilai Volume Backscattering Strength Perairan Pulau Tidung Menggunakan Single Beam Echosounder M. Hasbi Sidqi Alajuri; Henry M. Manik; Sri Pujiyati
Jurnal Kelautan Nasional Vol 17, No 1 (2022): APRIL
Publisher : Pusat Riset Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1322.081 KB) | DOI: 10.15578/jkn.v17i1.10693

Abstract

Pulau Tidung merupakan gugusan pulau kecil yang terletak di Kepulauan Seribu Selatan yang memiliki potensi perikanan yang cukup baik. Komposisi hasil tangkapan jaring muroami di Kepulauan Seribu yang mewakili perairan Wilayah Pengelolaan Perikanan Negara Republik Indonesia (WPPNRI 712) Laut Jawa pada tahun 2007 didominasi oleh ikan ekor kuning (Caesio cuning). Tujuan dari penelitian ini untuk mengetahui sebaran spasial dan vertikal nilai Volume Backscattering Strength (SV) dan sebaran spasial densitas Ikan di perairan Pulau Tidung. Survei ini dilakukan untuk memberikan gambaran informasi perikanan di perairan tersebut. Pengambilan data dilakukan sepanjang cruise track dan di 13 stasiun dengan menggunakan instrumen single beam echosounder SIMRAD EK-15 200 kHz. Analisis data dilakukan menggunakan software echoview 4.0 dengan threshold -60 dB re 1μPa sampai -39 dB re 1μPa dan ESDU (Elementary Sampling Distance Unit) 50 ping serta ketebalan 1 m. Hasil yang diperoleh menunjukan bahwa nilai SV secara spasial dari (-59.70 dB re 1μPa sampai -49.40 dB re 1μPa). Pada 13 stasiun pemeruman data akustik diperoleh nilai SV dari (-57.82 dB re 1μPa sampai -54.01dB re 1μPa) dengan nilai densitas ikan antara 0.81 – 6.17 ekor/m3. Sebaran SV dan densitas ikan ini dipengaruhi oleh kedalaman perairan dan aktivitas warga setempat. Sedangkan, sebaran SV ikan damersal dipengaruhi oleh jenis sedimen dasar perairan.
Karakteristik Hamburbalik Gelembung Udara Buatan dalam Kondisi Terkontrol Sri Pujiyati; Mochamad Adam Maulana; Ayi Rahmat; M Hasbi Sidqi Alajuri
Jurnal Kelautan Nasional Vol 18, No 1 (2023): APRIL
Publisher : Pusat Riset Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/jkn.v18i1.11068

Abstract

Gelembung udara dapat terbentuk secara alami maupun buatan. Gelembung udara buatan tercipta dari kegiatan antropogenik seperti pergerakan profiler kapal, penambangan, pembangunan bawah air, dan aerator (alat pembentuk gelembung udara).  Dalam ilmu hidroakustik, gelembung udara merupakan faktor utama dalam propagasi suara dekat-permukaan.   Oleh sebab itu dalam pengambilan data hidroakustik gelembung udara harus minimalkan agar hasil pengukuran hidroakustik menjadi akurat, baik dalam pengambilan data di lapangan maupun dalam skala laboratorium. Tujuan penelitian ini untuk mengetahui hambur balik dari gelembung udara buatan dalam kondisi terkontrol.  Penelitian ini  menggunakan Alat  aerator jenis Roston Q3 Aquarium Air Pump yang beroperasi apada 220-240 Volt mampu menghasilkan laju gelembung udara sebesar 2.5 watt dan 3 watt. Perekaman data akustik menggunakan Echosounder EK-15 dan analisis data menggunakan sofware echoview (4) versi demo.  Nilai hambur balik gelembung udara dengan daya 3 watt memiliki rentang -45.06 sampai -45.01 dB (ref:1μPa) dengan rata-rata hambur balik -45,02 dB (ref:1μPa). Adapun gelembung dengan daya 2.5 watt memiliki nilai hambur balik dengan rentang -45.07 sampai -45.01 dB (ref:1μPa), dengan nilai  hambur balik rata-rata sebesar -45.03 dB (ref:1μPa).
Pengembangan Website Pelayanan Administrasi bagi Masyarakat Kelurahan Sei Enam, Tanjungpinang Habsi, M. Hasbi Sidqi Alajuri; Bonardo, Doli; Harahap, Basyaruddin Ismail
Jurnal Pengabdian Masyarakat Bangsa Vol. 2 No. 12 (2025): Februari
Publisher : Amirul Bangun Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59837/jpmba.v2i12.2071

Abstract

Perkembangan teknologi informasi dan komunikasi (TIK) telah menjadi elemen penting dalam berbagai sektor, termasuk pendidikan, bisnis, hingga pemerintahan. Di era digital ini, diharapkan proses administrasi dan layanan publik dapat menjadi lebih cepat, efisien, dan terintegrasi. Kelurahan Sei Enam, yang terletak di Kabupaten Bintan, meskipun telah menunjukkan adaptasi yang baik terhadap teknologi, tapi masih menjalankan proses administrasi secara manual, seperti pengurusan surat ahli waris, surat keterangan penghasilan, surat kematian, dan surat keterangan domisili. Selain itu, sistem pengaduan masyarakat belum terintegrasi, sehingga pengelolaan keluhan warga menjadi kurang efisien. Penelitian ini mengusulkan pembuatan website pelayanan administrasi bagi masyarakat Kelurahan Sei Enam. Website dibangun menggunakan metode Rapid Application Development (RAD), sedangkan bahasa pemrograman yang digunakan adalah PHP, JavaScript, dan HTML dengan memanfaatkan framework Laravel dan framework Bootstrap. Pengujian terhadap sistem menggunakan metode blackbox testing. Hasil pengujian menyatakan bahwa website ini dapat berfungsi sesuai dengan spesifikasi dan kebutuhan pengguna, serta mempermudah permintaan surat kapan saja dan di mana saja tanpa harus mengunjungi kantor kelurahan. Keberadaan website ini juga meningkatkan efisiensi, efektivitas, dan transparansi dalam proses administrasi dan pengarsipan.
Comparation Tidal Harmonic Based on IoT Instrument Using Admiralty Method in Tanjungpinang Waters Alajuri, M Hasbi Sidqi; Kusuma, Hollanda Arief; Suhendra, Tonny; Setyono, Dwi Eny Djoko
Journal of Applied Geospatial Information Vol. 8 No. 2 (2024): Journal of Applied Geospatial Information (JAGI)
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jagi.v8i2.9042

Abstract

Tides are the rising and falling movement of sea level caused by the gravitational force of celestial bodies such as the moon and sun on the mass of seawater on earth. The aim of this research is to compare the use of time series of harmonic constant parameters obtained from tidal data stored in the tool using the admiralty method. Research activities were carried out at the international port of Dompak Island, Tanjungpinang City, Riau Islands. This tidal data is analyzed by admiralty. This method is used to analyze harmonic constants and identify patterns and sea level levels. Based on the results obtained, the type of tide in Tanjungpinang waters is a mixed tide (single dominant) with an F value of 2.01 to 2.07. The sea level elevation values "‹"‹obtained (MSL) from each time series ranged from 75.83 cm to 76.60 cm, (MHWL) ranged from 97.17 cm to 98.24 cm. Then (MLWL) ranges from 58.77 cm to 59.39 cm. Meanwhile, (HHWL) ranges from 153.98 cm to 154.73 cm, and (LLWL) ranges from -2.77 cm to -1.96 cm. With a confidence interval of 5 percent, is obtained. The difference in each time series seen from the data (MSL) is 7cm. Therefore, Tidal data from each time series has no significant differences.
Improving the Quality of X-Ray Images of the Lungs of COVID-19 and Healthy Patients Using the Contrast Limited Adaptive Histogram Equalization (CLAHE) Method in Batam Pertiwi, Marisha; Magfira, Fortia; Rahmaisyah, Dwi; Alajuri, M. Hasbi Sidqi
JEECS (Journal of Electrical Engineering and Computer Sciences) Vol. 10 No. 1 (2025): JEECS (Journal of Electrical Engineering and Computer Sciences)
Publisher : Fakultas Teknik Universitas Bhayangkara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54732/jeecs.v10i1.3

Abstract

X-ray imaging is a widely used technique for observing lung patients conditions. Compared to other radiographic methods, X-ray is more accessible, cost-effective, and commonly available in healthcare facilities. However, digital X-ray images often suffer from low quality, particularly in terms of image contrast, which complicates the process of identifying lung abnormalities accurately. In Embung Fatimah Hospital in Batam, X-ray imaging is routinely used to screen COVID-19 and healthy patients. To address the issue of poor image contrast, this study applies the Contrast Limited Adaptive Histogram Equalization (CLAHE) technique, aiming to enhance image clarity and support more effective analysis. The research involved 20 lung X-ray images, consisting of 10 from COVID-19 and 10 from healthy patients, retrieved from the hospital’s radiology department system. The images underwent digital processing using Matlab software. The workflow included converting the images to grayscale before applying contrast enhancement with the CLAHE method, using three different distribution types: Uniform, Rayleigh, and Exponential. Following enhancement, Peak Signal to Noise Ratio and Mean Square Error metrics were calculated for each distribution type to evaluate image quality improvement. The result shown that all three CLAHE methods effectively enhanced the visual contrast of the lung images. The average MSE values for COVID-19 images were 26.27, 25.25, and 25.62, while for healthy images they were 28.27, 27.35, and 27.44. Meanwhile, the average PSNR values for COVID-19 images reached 155.63, 196.58, and 180.58, with healthy images scoring 98.27, 122.22, and 118.97. Overall, the process achieved an accuracy of 100%.
A Smart Web Application for Real-Time Indoor Temperature and Humidity Monitoring Hasbi, M. Hasbi Sidqi Alajuri; Hollanda Arief Kusuma; Marisha Pertiwi; Tonny Suhendra; Gilang Satria Wahyu Dewantara
EKSAKTA: Berkala Ilmiah Bidang MIPA Vol. 26 No. 03 (2025): Eksakta : Berkala Ilmiah Bidang MIPA (E-ISSN : 2549-7464)
Publisher : Faculty of Mathematics and Natural Sciences (FMIPA), Universitas Negeri Padang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/eksakta/vol26-iss03/606

Abstract

Learning comfort is influenced by the environment, including temperature and humidity. This study validates the temperature and humidity monitoring device (DHT 22) in the dashboard system of the Department of Electrical Engineering. The results show high accuracy, with 98.96% for temperature and 98.93% for humidity, and an average error rate of 1.04%. Validation was conducted at BMKG Tanjungpinang for four days, with data recorded every minute for 24 hours. User satisfaction evaluation using the System Usability Scale (SUS) yielded an average score of 57, categorized as "Not Acceptable." Nevertheless, users still provided relatively positive feedback. These findings emphasize the need for improvements in dashboard design, user experience, and additional training. Recommendations include utilizing third-party platforms and evaluating the hardware and interface to enhance system usability.
Development of an IoT-Based Tidal Gauge With Ultrasonic Sensors Alajuri, M Hasbi Sidqi; Kusuma, Hollanda Arief; Bavitra, Bavitra; Harahap, Basyaruddin Ismail
Jambura Journal of Electrical and Electronics Engineering Vol 7, No 2 (2025): Juli - Desember 2025
Publisher : Electrical Engineering Department Faculty of Engineering State University of Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jjeee.v7i2.29143

Abstract

Tides are the periodic rise and fall of sea levels caused by the gravitational effects of the moon and the sun. This tidal phenomenon can be measured manually or automatically using instruments. The objective of this study is to design and develop a tide gauge instrument using the JSN-SR04T sensor based on the Internet of Things (IoT). The research method includes hardware design, electrical design, firmware development, and dashboard creation. Once the system design is completed, the components are assembled. Functional and laboratory tests are conducted to ensure that each component operates properly, followed by field testing. The tide gauge instrument is capable of operating for 7 days with good accuracy in the measurement range of 25 cm to 200 cm (with an error between 0.02 and 0.16 cm). Field observations indicate that the type of tide corresponds to previous studies, which is a mixed tide. The DS18B20 sensor produced temperature readings that matched those of a standard thermometer.Pasang surut merupakan gerak naik turun muka air laut secara periodik yang disebabkan oleh efek gravitasi bulan dan matahari. Fenomena pasang surut ini bisa diukur secara manual dan otomatis menggunakan instrumen. Tujuan penelitian ini yaitu membuat rancang bangun instrumen pengukur pasang surut dengan sensor JSN-SR04T berbasis IoT. Metode penelitian dimulai dari perancangan hardware, perancangan electrical, perancangan firmware, dan perancangan dashboard. Setelah perancangan sistem selesai maka dilakukan perakitan komponen. Uji fungsionalitas dan uji laboratorium dilakukan untuk memastikan setiap komponen berfungsi dengan baik. selanjutnya, diakukan uji lapangan. Instrumen pasang surut ini dapat bekerja selama 7 hari dengan akurasi yang baik pada rentang pengukuran 25 cm hingga 200 cm (Error 0.02 hingga 0.16). Berdasarkan hasil pengamatan di lapangan menunjukkan bahwa jenis pasang surut sesuai dengan peneliti sebelumnya yaitu campuran. Hasil pengukuran sensor DS18B20 memiliki nilai suhu yang sama dengan pengukuran termometer.   
Integrated Fuzzy Logic Model for Smart Water Quality Monitoring and Floating Net Cage Optimization in Barramundi Aquaculture Pramana, Rozeff; Alajuri, M Hasbi Sidqi
Jurnal Teknik Informatika (Jutif) Vol. 6 No. 5 (2025): JUTIF Volume 6, Number 5, Oktober 2025
Publisher : Informatika, Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52436/1.jutif.2025.6.5.5346

Abstract

Water quality and aquatic conditions are critical factors in the success of fish farming with Floating Net Cages (FNCs). However, manual monitoring is often delayed due to limited human resources, irregular measurement schedules, and dependence on manual sampling, which can result in late detection of deteriorating water quality and ultimately increase the risk of fish stress, disease outbreaks, and mortality. This study aims to develop an Internet-based water quality monitoring system, integrated with smartphones and PCs, to support rapid decision-making for FNC relocation when water conditions deteriorate. The system is equipped with sensors for temperature, dissolved oxygen (DO), pH, electrical conductivity (EC), total dissolved solids (TDS), turbidity, anemometer, and wind direction, and was field-tested for 36 days in sea-based Barramundi aquaculture. Decision-making was implemented using a Fuzzy Inference System (FIS) with input variables: temperature, DO, pH, and anemometer data, while the output variable was the FNC status: “Relocate” or “Remain.” Results indicated that water quality changes occurred across both short-term and long-term intervals, and during a 56-hour fuzzy simulation, 10 data points suggested “Relocate” while 46 data points indicated “Remain.” The novelty of this research lies in the integration of real-time IoT monitoring with fuzzy logic specifically for FNC relocation decision-making, bridging environmental sensing and intelligent decision support. These findings demonstrate that the proposed system is more effective and efficient than conventional methods, contributing to the advancement of intelligent aquaculture technologies.
Implementation of IoT-based water quality monitoring instruments in cantang grouper cultivation ponds Kusuma, Hollanda Arief; Alajuri, M Hasbi sidqi; Anggarudin, Anggarudin; Setyono, Dwi Eny Djoko; Irawan, Henky
Computer Science and Information Technologies Vol 6, No 3: November 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/csit.v6i3.p235-244

Abstract

Grouper fish farming in Indonesia has great potential, but water quality management remains a challenge. Manual monitoring at hatchery D-Marine aquaculture struggles to detect sudden changes, risking mass mortality. This study developed an IoT-based water quality monitoring system using an ESP32 microcontroller, DS18B20 temperature sensors, pH sensors, dissolved oxygen (DO) sensors, a micro-SD card, an organic light emitting diode (OLED) display, and the Ubidots platform. The methodology involved device design, sensor calibration, and field testing. Calibration showed sensor accuracy above 90%. Field tests recorded water temperatures of 26.84 °C (tank 1) and 27.74 °C (tank 2), with pH values of 6.73 and 6.87, which did not meet Indonesian national standard (SNI) standards. Data transmission to Ubidots had a 95% packet delivery ratio (PDR) for device 1 and 97% for device 2. The system successfully provided real-time water quality data, supporting effective farm management. However, improvements to the dissolved oxygen sensor and an automatic control system are needed for better stability and efficiency.
Co-Authors Anggarudin, Anggarudin Ayi Rahmat Bavitra, Bavitra Doli Bonardo Dwi Eny Djoko Setyono, Dwi Eny Djoko Fortia Magfira Gilang Satria Wahyu Dewantara Harahap, Basyaruddin Ismail Henry Munandar Manik Hollanda Arief Kusuma Irawan, Henky Marisha Pertiwi Mochamad Adam Maulana Pramana, Rozeff Rahmaisyah, Dwi Sri Pujiyati Tonny Suhendra Tonny Suhendra