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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS) IAES International Journal of Artificial Intelligence (IJ-AI) International Journal of Reconfigurable and Embedded Systems (IJRES) International Journal of Applied Power Engineering (IJAPE) TELKOMNIKA (Telecommunication Computing Electronics and Control) Bulletin of Electrical Engineering and Informatics Bulletin of Electrical Engineering and Informatics Sinergi Scientific Journal of Informatics Journal of Information Systems Engineering and Business Intelligence Bulletin of Electrical Engineering and Informatics Jurnal ELTIKOM : Jurnal Teknik Elektro, Teknologi Informasi dan Komputer INTEGER: Journal of Information Technology BAREKENG: Jurnal Ilmu Matematika dan Terapan TIJAB (The International Journal of Applied Business) JURNAL PENGABDIAN KEPADA MASYARAKAT Jurnal Intake : Jurnal Penelitian Ilmu Teknik dan Terapan Abdimas: Jurnal Pengabdian Masyarakat Universitas Merdeka Malang Abdimasku : Jurnal Pengabdian Masyarakat Community Development Journal: Jurnal Pengabdian Masyarakat Jurnal Layanan Masyarakat (Journal of Public Service) Journal of Vocational Nursing Jurnal Nasional Pengabdian Masyarakat ALINIER: Journal of Artificial Intelligence & Applications Jurnal Sistim Informasi dan Teknologi Jurnal Ilmiah Hospitality Management Jurnal Rekayasa elektrika JGEN : Jurnal Pengabdian Kepada Masyarakat
Firdaus, Aji Akbar
Department Of Engineering, Faculty Of Vocational, Universitas Airlangga, Indonesia
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Mechanical Engineering Nursing Physics Public Health Social Sciences Transportation Other

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Optimized Kalman filtering in dynamical environments for thumb robot motion estimation Herlambang, Teguh; Susanto, Fajar Annas; Firdaus, Aji Akbar; Kusuma, Vicky Andria; Suprapto, Sena Sukmananda; Muhaimin, Muhaimin; Arof, Hamzah
International Journal of Reconfigurable and Embedded Systems (IJRES) Vol 13, No 3: November 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijres.v13.i3.pp512-519

Abstract

Stroke, a prevalent nerve disorder in Indonesia, necessitates post-stroke rehabilitation like physical and occupational therapy. Hand and finger muscle training, crucial for restoring movement, often involves innovative solutions like finger prosthetic robotics arms. In particular, the advancement in thumb robotics emphasizes the estimation of thumb motion, where the ensemble Kalman filter square root (EnKF-SR) and H-infinity methods are deemed dependable for both linear and nonlinear models. Simulation results, using 400 ensembles, demonstrated nearly identical accuracy between the methods, exceeding 99%, with a 6-7% increase in accuracy compared to 200 ensembles. These advancements offer promising prospects for effective post-stroke rehabilitation and improved thumb movement restoration.
Design and build an airbag system for elderly fall protection using the MPU6050 sensor module Suprapto, Sena Sukmananda; Kusuma, Vicky Andria; Firdaus, Aji Akbar; Putra, Wahyu Haryanto; Yuniar, Risty Jayanti
International Journal of Reconfigurable and Embedded Systems (IJRES) Vol 13, No 1: March 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijres.v13.i1.pp111-116

Abstract

The use of technology has a significant impact to reduce the consequences of accidents. Sensors, small components that detect interactions experienced by various components, play a crucial role in this regard. This study focuses on how the MPU6050 sensor module can be used to detect the movement of people who are falling, defined as the inability of the lower body, including the hips and feet, to support the body effectively. An airbag system is proposed to reduce the impact of a fall. The data processing method in this study involves the use of a threshold value to identify falling motion. The results of the study have identified a threshold value for falling motion, including an acceleration relative (AR) value of less than or equal to 0.38 g, an angle slope of more than or equal to 40 degrees, and an angular velocity of more than or equal to 30 °/s. The airbag system is designed to inflate faster than the time of impact, with a gas flow rate of 0.04876 m3 /s and an inflating time of 0.05 s. The overall system has a specificity value of 100%, a sensitivity of 85%, and an accuracy of 94%.
Comparative analysis of single-axis solar tracker performance with and without reflector under various weather conditions Kusuma, Vicky Andria; Firdaus, Aji Akbar; Suprapto, Sena Sukmananda; Yuniar, Risty Jayanti; Trimulya, Hanif; Priyanto, Yun Tonce Kusuma
International Journal of Applied Power Engineering (IJAPE) Vol 13, No 2: June 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijape.v13.i2.pp328-334

Abstract

This research explores a sun tracking system for solar panels that affects the power output of the panels. To address this, a unidirectional sun tracking system is implemented to ensure the solar panels are perpendicular to the sun, thus optimizing solar radiation. Additionally, reflectors are integrated to capture more sunlight. This research aims to design the system of unidirectional sun tracking to enhance the power output generated by solar panels and compare its performance with stationary (static) solar panels. The results demonstrate that the system of sun tracking improves the power output of solar panels. However, when reflectors are used in conjunction with the sun tracking system, no significant increase in power output is observed. Moreover, solar panels equipped with the unidirectional sun tracking system exhibit a power increase of 52.06 Watts compared to stationary solar panels. This research indicates that employing a unidirectional sun tracking system with the addition of reflectors does not enhance power output but instead reduces it due to the increased temperature effect caused by the sunlight reflection from the added reflectors.
Optimasi On-Load Tap-Changing Menggunakan Quantum Differential Evolution Untuk Meminimalkan Kerugian Daya Firdaus, Aji Akbar
Jurnal ELTIKOM : Jurnal Teknik Elektro, Teknologi Informasi dan Komputer Vol. 2 No. 1 (2018)
Publisher : P3M Politeknik Negeri Banjarmasin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31961/eltikom.v2i1.43

Abstract

Transformator memiliki peranan penting dalam pengaturan aliran daya pada sistem tenaga listrik. Karena transformator dapat menaikkan dan menurunkan tegangan sesuai dengan permintaan pelanggan. Pengaturan Tegangan ini dapat dilakukan dengan beberapa cara, salah satu cara untuk mengatur tegangan tersebut menggunakan tap transformator. Pada penelitian ini, pengaturan tap transformator dilakukan dengan metode Quantum Differential Evolution (QDE). Pengaturan tap transformator ini bertujuan untuk memperbaiki tegangan dan meminimalkan kerugian daya. Skema ini diujikan pada sistem IEEE 34-bus 20 kV. Dari hasil simulasi didapatkan, Sebelum dilakukan tap transformator kerugian daya didapatkan 21.76 kW dengan tegangan rata-rata adalah 19 kV. Dan Setelah pengaturan tap transformator dilakukan kerugian daya menjadi 19.16 kW dengan tegangan rata-rata adalah 19.93 kV.
Pendampingan Desa Wisata Sehat Anti Covid-19 Berbasis Sport Tourism Desa Tanggung Kecamatan Campurdarat Kabupaten Tulungagung Nurhidayati, Sri Endah; Firdaus, Aji Akbar; Kristanto, Damar
JGEN : Jurnal Pengabdian Kepada Masyarakat Vol. 3 No. 1 (2025): JGEN : Jurnal Pengabdian Kepada Masyarakat, Februari 2025
Publisher : Lumbung Pare Cendekia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.60126/jgen.v3i1.687

Abstract

Pedesaan merupakan wilayah yang potensial untuk dikembangkan menjadi objek wisata. Kekayaan alam, budaya dan tata cara hidup di desa merupakan salah satu daya tarik untuk dikembangkan sebagai desa wisata. Berkembangnya otonomi daerah main mendorong banyak wilayah yang mengembangkan pedesaan sebagai destinasi wisata. Pada masa pandemic covid- 19 pengembangan wisata didesain dapat diarahkan pada buku wisata sehat berbasis sport tourism. Desa Tanggung memiliki potensi wisata yang beragam. Ikon utamanya adalah Gunung Budheg yang merupakan aset alam yang sebagai destinasi wisata pendakian, camping, outbond dan wisata religi. Pasca Pandemi COVID-19 perlu dikembangkan wisata alternatif sesuai perubahan minat wisatawan. Melalui kegiatan pengabdian kepada masyarakat dilakukan upaya pendampingan Desa Wisata Tanggung dalam mengembangkan sport tourism. Kegiatan Pengmas terdiri (1) sosialisasi tentang Desa Wisata, (2) pelatihan Pemetaan Potensi Sport Tourism, (3) Pelatihan implementasi CHSE bagi Pokdarwis, dan (4) penguatan kelembagaan Desa Wisata. Kegiatan sosialisasi Desa Wisata dilaksanakan tanggal 11 Agustus 2021 diikuti Ketua dan Pengurus Pokdarwis, tokoh masyarakat Desa Tanggung. Sebagai tindak lanjut dilakukan Penandatanganannya dilaksanakan di Balai Desa Tanggung oleh Dekan Fakultas Vokasi Unair dan Kepala Desa Tanggung pada tanggal 25 September bersamaan dengan penyerahan bantuan sepeda sekaligus launching kegiatan “Ngontel Sobo Deso”. Pelatihan CHSE dilakukan dengan sasaran pengurus dan Ketua Pokdarwis agar pasca Pandemi masih tetap menjaga aspek kebersihan, kesehatan, keamanan dan kelestarian lingkungan. Pelaksanaan Pengmas ditutup dengan kegiatan penguatan kelembagaan Desa Wisata antara lain berkaitan dengan penguatan peran Pokdarwis dalam mengelola Desa Wisata.
Implementation of flexible axis photovoltaic system based on internet of things Firdaus, Aji Akbar; Daud, Muhamad Zalani; Rajendran, Parvathy; Solihin, Mahmud Iwan; Wang, Li; Azmita, Mimi; Arof, Hamzah
International Journal of Reconfigurable and Embedded Systems (IJRES) Vol 14, No 1: March 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijres.v14.i1.pp157-164

Abstract

Electricity is a crucial aspect in human life. With population growth, ongoing regional development, and continuous construction activities, the demand for electricity and fuel in Indonesia is increasing. The substantial power consumption leads to larger financial expenditures for the community. Additionally, the use of electricity, as it has been traditionally employed, has negative environmental impacts. Solutions are needed to address these issues, and one effort involves the use of renewable energy, such as the development of solar power plants (PLTS). PLTS, also known as solar cells, is preferred as it can be used for various relevant purposes in different locations, particularly in offices, factories, residential areas, and others. However, the use of static, single-axis, and dual-axis solar panels still has drawbacks, such as suboptimal sunlight intensity and high motor power consumption. Therefore, a flexible-axis solar panel tracking system has been developed to follow the direction of sunlight, ensuring optimal power efficiency, and significant electricity generation. The flexible-axis tracker system results in a 34.13% increase in power efficiency.
Understanding History Through Tourism: The Benefits of Millennial Visitors to the Trowulan Site in Mojokerto Regency, Indonesia: Memahami Sejarah Lewat Pariwisata: Manfaat Kunjungan Wisatawan Millenial ke Situs Trowulan di Kabupaten Mojokerto Indonesia Kinasih, Sri Endah; Nuruddi, Nuruddin; Firdaus, Aji Akbar; Aly, M. Nilzam; Ginting, Ina Veronica; Putri, Rahmah Fadiyah
Jurnal Ilmiah Hospitality Management Vol. 15 No. 1 (2024): December 2024
Publisher : Institut Pariwisata dan Bisnis Internasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22334/jihm.v15i1.290

Abstract

The declining understanding and interest in historical studies among the millennial generation is a growing concern. Tourism has the potential to serve as a medium for enhancing historical comprehension, with the Trowulan site—an archaeological relic of the Majapahit Kingdom in Mojokerto Regency, East Java—offering a prime example. This study aims to analyze the activities and benefits of tourism based on historical heritage sites like Trowulan. A qualitative research method was employed, using a historical and descriptive-interpretative approach. Data were collected through literature reviews, field observations, and interviews conducted on-site. The findings indicate four key benefits millennial visitors gain from tourism activities at Trowulan: discovering physical evidence of the Majapahit Kingdom; increasing knowledge of Majapahit history through storytelling at the site; gaining new insights into Indonesia’s tangible and intangible cultural heritage; and fostering a deeper appreciation of the unique architectural achievements of Indonesia’s ancestors. The urgency of this study lies in addressing the declining interest among younger generations in cultural and historical education, which threatens the preservation of Indonesia's rich heritage. The novelty of this research is its focus on millennial visitors and its exploration of innovative strategies, such as integrating storytelling and interactive activities, to engage this demographic. This study contributes to the academic literature on heritage tourism by providing insights into the role of historical sites in promoting cultural and educational values. Practically, it offers actionable recommendations for tourism stakeholders to develop creative programs that ensure the sustainability and relevance of cultural heritage sites like Trowulan for future generations.
Predicting tourist arrivals to a tropical island using artificial intelligence Suharto, Bambang; Edi Suharno, Novianto; Sinatriya Marjianto, Rachman; Firdaus, Aji Akbar; Suprapto, Sena Sukmananda; Andria Kusuma, Vicky; Amalia Sinulingga, Rizky
IAES International Journal of Artificial Intelligence (IJ-AI) Vol 14, No 2: April 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijai.v14.i2.pp1022-1030

Abstract

This research leverages artificial intelligence (AI) techniques to develop a predictive model for forecasting tourist arrivals in East Java Province, Indonesia, using a comprehensive dataset encompassing historical tourism statistics from 2018 to 2020, seasonal trends, promotional campaigns, and various economic and social variables. The study evaluates three AI methodologies: artificial neural network (ANN), extreme learning machine (ELM), and Jordan recurrent neural network (JRNN), each known for their distinct strengths in processing complex data and adapting to changing trends. The comparative analysis reveals that the JRNN model outperforms others with the highest precision, achieving an average prediction deviation of just 2.98% from actual data, effectively capturing temporal and seasonal trends. The ANN follows closely with a deviation of 3.31%, showing strong capabilities in handling complex, nonlinear relationships. In contrast, the ELM, though fastest in training, exhibits a larger deviation of 10.51%, indicating a trade-off between speed and accuracy. These results highlight the potential of AI to significantly enhance the accuracy and operational efficiency of tourism forecasts, offering robust tools for stakeholders to engage in informed strategic planning and resource allocation in dynamic market conditions.
Economic improvement and fish farming based on Smart Aquaculture Automatized System in Segobang Village, Banyuwangi Fasya, Arif Habib; Kenconojati, Hapsari; Budi, Darmawan Setia; Suciyono, Suciyono; Pardede, Maria Agustina; Kumalaningrum, Dwi Retna; Prayogo, Prayogo; Saputra, Eka; Firdaus, Aji Akbar; Maulana, Muhammad Hilmy; Ambarwati, Dewi
Abdimas: Jurnal Pengabdian Masyarakat Universitas Merdeka Malang Vol. 10 No. 1 (2025): February 2025
Publisher : University of Merdeka Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26905/abdimas.v10i1.14811

Abstract

The fisheries and marine sector in East Java has abundant potential, one of which is Banyuwangi district. Banyuwangi Regency has potential in freshwater aquaculture because it has 324 rivers with an area of 735 km2 and swamps and reservoirs of 60 hectares. One of the villages in Banyuwangi Regency is Segobang Village, which has the potential to have abundant water sources and continuous flow. This potential can be utilized by training and assisting fish nurseries in Segobang Village by utilizing continuously flowing water and Smart Aquaculture Automatized System (SAAS) technology by utilizing biofilters and running water and aeration as a source of oxygen.  The stages carried out in this community service are as follows: initial assessment of the location, infrastructure and technology development, periodic training and mentoring, implementation and monitoring of the cultivation process, and continued marketing and sales. After the training, the Segobang Village community showed a significant increase in knowledge. The average pre-test scores ranged from 30 to 51, while the post-test scores increased to 79 to 87. This improvement shows that participants better understand the SAAS and its use in fish farming. Continued training and practice can help strengthen the adoption of this technology in the community.
COMPARISON OF NAÏVE BAYES AND K-NEAREST NEIGHBOR MODELS FOR IDENTIFYING THE HIGHEST PREVALENCE OF STUNTING CASES IN EAST JAVA Herlambang, Teguh; Asy'ari, Vaizal; Rahayu, Ragil Puji; Firdaus, Aji Akbar; Juniarta, Nyoman
BAREKENG: Jurnal Ilmu Matematika dan Terapan Vol 18 No 4 (2024): BAREKENG: Journal of Mathematics and Its Application
Publisher : PATTIMURA UNIVERSITY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/barekengvol18iss4pp2153-2164

Abstract

Indonesia will experience a demographic bonus in 2030, where the productive age group will dominate the population and become a buffer for the economy. However, this potential is in vain if human resources experience stunting. According to WHO (2015), stunting is a disorder of child growth and development due to chronic malnutrition and repeated infections, characterized by below-standard length or height. Based on the background of the problem, the author wants to compare the prediction of the prevalence of the highest stunting cases in East Java using the Naive Bayes method and the K-Nearest Neighbor method. The stages carried out in this study are data collection, initial data processing, advanced data processing using the Naïve Bayes Method and K-Nearest Neighbor, and comparative analysis. The results of the implementation of the Naïve Bayes and K-Nearest Neighbor methods are in the form of stunting prevalence prediction charts with variables that affect LBW and TTD. The results of simulations conducted in 6 regions, the Naive Bayes method gets the highest accuracy value of 83.33% in simulation one and 66.67%. The smallest RMSE value is 0.382 simulation 1 and 0.469 simulation 2. This shows that the Naive Bayes method can predict well.
Co-Authors Achmad Luki Satriawan Adi Soeprijanto Agustin, Eva Inaiyah Alim Prasaja Aly, Muhammad Nilzam Ambarwati, Dewi Anang Budikarso Anang Tjahjono, Anang Andria Kusuma, Vicky Arof, Hamzah Asy'ari, Vaizal Azmita, Mimi Bambang Suharto Bambang Suharto Belgis, Belgis DARMAWAN SETIA BUDI Daud, Muhamad Zalani Dewanto, Muhammad Ridho Dimas Fajar U.P. Dimas Fajar Uman Putra Dimas Okky Anggriawan Dwi Retna Kumalaningrum Eka Prasetyono, Eka Eka Saputra Endro Wahjono Farid, Mifta Nur Fasya, Arif Habib Firillia Filliana Gagas Gayuh Aji, Gagas Gayuh Ginting, Ina Veronica Hadi Suyono Hadi Suyono Hamzah Arof Happy Aprillia Hidayatul Nurohmah Indhana Sudiharto Jenrychk Marcelino Tandi Karrang Kadek Juni Setiawati Kenconojati, Hapsari Kharis Sugiarto Khuria Kirana, Angkita Wasito Kristanto, Damar Kristanto, Damar Kurnia Wijaya Kusuma Li Wang Machrus Ali Mahmud Iwan Solihin Maulana, Muhammad Hilmy Maurisia Putri Permatasari Mifta Nur Farid Mimi Azmita Muhaimin Muhaimin Muhammad Agung Nursyeha Muhammad Aziz Muslim Muhammad Aziz Muslim Muhammad Nizhom Ramadhani Muhammad Ruswandi Djalal Nabila Salvaningtyas Nasa Zata Dina Novian Patria Uman Putra Novian Uman Putra Nuruddin Nuruddin Nyoman Juniarta, Nyoman Ontoseno Penangsang Pardede, Maria Agustina Prasaja, Alim Prayogo, Prayogo Priyanto, Yun Tonce Kusuma Putra, Dimas Fajar Uman Putra, Wahyu Haryanto Putri, Rahmah Fadiyah Rachman Sinatriya Marjianto Rafdi Syah, Muhammad Abby Rahayu, Ragil Puji Rahmat Yuliawan Rajendran, Parvathy Risty Jayanti Yuniar Sena Sukmananda Suprapto Setiawati, Kadek Juni Sinulingga, Rizky Amalia Sisca Dina Nur Nahdliyah Sri Endah Kinasih Sri Endah Nurhidayati Suciyono, Suciyono Sugiarto, Kharis Suharno, Novianto Edi Suprapto, Sena Sukmananda Susanto, Fajar Annas Teguh Aryo Nugroho Teguh Herlambang Tesa Eranti Putri Trimulya, Hanif Uman Putra, Novian Patria Vicky Andria Kusuma Vicky Andria Kusuma Wilda Imama Sabilla Winarno Winarno Winarno, Winarno Yanuar Mahfudz Safarudin Yuli Prasetyo Yunardi, Riky Tri