cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kota yogyakarta,
Daerah istimewa yogyakarta
INDONESIA
International Journal of Advances in Applied Sciences
Published by Institute of Advanced Engineering and Science
ISSN : 22528814     EISSN : 27222594     DOI : http://doi.org/10.11591/ijaas
Core Subject : Science, Education, Social,
Earth & Planetary Sciences Environmental Science Materials Science & Nanotechnology Mathematics Physics
International Journal of Advances in Applied Sciences (IJAAS) is a peer-reviewed and open access journal dedicated to publish significant research findings in the field of applied and theoretical sciences. The journal is designed to serve researchers, developers, professionals, graduate students and others interested in state-of-the art research activities in applied science areas, which cover topics including: chemistry, physics, materials, nanoscience and nanotechnology, mathematics, statistics, geology and earth sciences.
Arjuna Subject : -
Articles 797 Documents
 75   76   77   78   79 
Recent advances in computer vision segmentation for urban tree detection using street view imagery: a literature review Muhammad Fareez Rashdan; Nurbaity Sabri; Shafaf Ibrahim; Nor Masri Sahri
International Journal of Advances in Applied Sciences Vol 15, No 3: September 2026
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijaas.v15.i3.pp975-989

Abstract

Segmentation of trees in urban settings is important for tracking vegetation and managing green infrastructure in urban areas. However, there are numerous factors that make it difficult to obtain precise results, such as differences in tree species, season, and environmental variables. Street-view imagery can provide a valuable database to be used for the detection and identification of trees. Unfortunately, the process of labelling images manually is time-consuming and inconsistent. In recent years, deep learning models have provided better automation and precision. However, difficulties in obtaining results persist due to factors such as occlusion, background, and changes in lighting conditions. Therefore, this paper presents an overview of the current trends in the use of deep learning for the detection and segmentation of trees. Specifically, the following aspects will be discussed in this work: preprocessing of images, semantic and instance segmentation, models based on deep learning, and transformers. This literature review also analyzes current datasets, evaluation measures, and applications, offering knowledge about existing challenges and future directions for further studies. The article is designed to be a source of reference for scientists and practitioners working on problems related to urban vegetation classification and computer vision.
Drivers of salesperson performance: value transfer, personality congruence, and selling ambiance Evi Dian Kartikasari; Sulastri Sulastri; Isnurhadi Isnurhadi; Muchsin Saggaf Sihab
International Journal of Advances in Applied Sciences Vol 15, No 3: September 2026
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijaas.v15.i3.pp1155-1165

Abstract

This study examines preference-based transfer of value (PTV) as a mediating mechanism linking adaptive selling (AS), salesperson-brand personality congruence (SPC), and positive selling ambiance (PSA) to salesperson performance (SP) in a retail banking context. Using a quantitative cross-sectional survey, questionnaires were collected from 262 frontline salespeople of PT Bank BNI (Persero) Tbk in Indonesia. The proposed model was tested using structural equation modeling (SEM). The findings show that AS, SPC, and PSA significantly enhance PTV, and PTV positively predicts SP. Mediation analysis indicates that PTV transmits the effects of these antecedents on performance, highlighting the importance of converting selling behaviors and interaction climates into customer-internalized value. The study contributes by introducing and empirically validating PTV as a novel psychological channel in sales performance research and offers managerial implications for recruitment, training, and performance assessment in business-to-consumer financial services. Future research may extend this model across industries and examine boundary conditions using multi-group designs.
Students' perspectives on the effectiveness of ChatGPT in virtual learning Isaac Asampana; Henry Akwetey Matey; Ben T. Ocra; Jones Yeboah Nyame
International Journal of Advances in Applied Sciences Vol 15, No 3: September 2026
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijaas.v15.i3.pp921-931

Abstract

This research investigates how students perceive chat generative pre-trained transformer (ChatGPT) as a learning aid, examining its effects on engagement, usability, and educational achievement. Using the technology acceptance model (TAM) as the conceptual framework, a 24-item survey was designed and administered through simple random sampling. Results reveal that students largely view ChatGPT positively, describing it as an accessible and beneficial tool that promotes flexible and independent learning. The findings confirm TAM predictions, showing that perceived ease of use and favorable attitudes significantly influence adoption. By combining insights from both distance and on-campus learners, the study enriches understanding of how generative artificial intelligence enhances cognitive development and learning adaptability. Overall, the research reflects cautious optimism about ChatGPT’s pedagogical value, acknowledging both its educational benefits and challenges while underscoring the essential role of usability and learner attitudes in fostering sustained artificial intelligence utilization in higher education.
Flight supervision and pilot training standards: a study of international aviation regulations Heni Puspita; Ade Gafar Abdullah; Agus Setiawan; Isma Widiaty; Ike Yuni Wulandari; Johanes Adi Prihantono; Erlian Supriyanto
International Journal of Advances in Applied Sciences Vol 15, No 3: September 2026
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijaas.v15.i3.pp1203-1213

Abstract

This paper analyzes variations in pilot training and licensing policies across four major organizations: the International Civil Aviation Organization (ICAO), the Federal Aviation Administration (FAA), the European Union Aviation Safety Agency (EASA), and the Directorate General of Civil Aviation (DGCA) of Indonesia. The main issue here is the impact of contradictory training pathway requirements, flight hours, simulator requirements, language proficiency requirements, and instructor qualification requirements on aviation safety, license transferability, and the construction of the pilot training system in Indonesia. This study employs a qualitative research design, combining a systematic literature review with regulatory comparative analysis. The findings demonstrate that the prescriptive and competency-based model is most prevalent in EASA, where simulation and multi-crew requirements are widely applied; whereas in the FAA, the emphasis is more on total flight experience and rules related to 1,500 hours; and in the Civil Aviation Safety Regulations (CASR), there is minimal implementation but overall consistent with ICAO minimum. The paper finds that the country must progressively harmonize with modern ICAO, EASA, and FAA standards of good practice, prioritizing competency-based training (CBT), fatigue risk management, simulator capacity, and instructor professionalization to enhance safety performance and international recognition.
Improving ride comfort of semi-active suspension with magnetorheological damper by fuzzy-PID control Zhang Kunlun; Azizan As’arry; Liucun Zhu; Abdul Aziz Hairuddin; Mohd Khair Hassan; Mohd Zarhamdy Md Zain
International Journal of Advances in Applied Sciences Vol 15, No 3: September 2026
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijaas.v15.i3.pp1038-1049

Abstract

Semi-active suspension using magnetorheological (MR) damper has become one of the popular choices for improving vehicle ride comfort due to its adjustable damping, affordable cost, and quick response. MR damper has highly nonlinear and obvious hysteresis behavior, so its control becomes complicated. Fuzzy control combined with proportional-integral-derivative (PID) controller is used to study the vibration reduction control strategy of semi-active suspension with MR damper. PID is highly robust, but the control parameters cannot be changed during the control process. Therefore, it has good adjustment ability for specific situations, but cannot effectively adjust nonlinear systems. Fuzzy control performs fuzzy inference based on input variables and fuzzy rules constructed from expert knowledge, and continuously outputs effective control parameters to adjust nonlinear systems. The advantages of both are used to construct fuzzy-PID controller to control MR damper. A quarter-car semi-active suspension with MR damper model is established using MATLAB/Simulink for simulation analysis. Compared with passive and PID, fuzzy-PID reduces the root mean square (RMS) values of body acceleration, suspension travel, and tire deflection, reduces body vibration, and improves ride comfort.
Ethical issues in digital mental health delivery: a comprehensive scoping review of global challenges Nurul Ain Ain Mohd Mohd Daud; Hapsah Md Yusof; Norazani Ahmad; Fauziah Mohd Sa’ad; Nurul Hasyimah Mat Rani; Pau Kee; Nur Shuhana Mohd Sansuddin
International Journal of Advances in Applied Sciences Vol 15, No 3: September 2026
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijaas.v15.i3.pp911-920

Abstract

Digital technologies are becoming increasingly integrated into mental health counselling. While expanding the boundaries of service provision, these technologies have also raised numerous ethical challenges that urgently need clarification. This study conducts a scoping review following the standardized methodology developed by Arksey and O’Malley. It identifies five core ethical challenges facing practitioners: privacy and data security; informed consent and autonomy; service accessibility and equality; algorithmic fairness and bias mitigation; and inclusiveness and equity. Existing comparative analyses show that Western countries, including the United States (US) and the United Kingdom (UK), have mature digital mental health regulatory frameworks. In contrast, non-Western countries generally face gaps in legal protections, which have created a global ethical divide. Artificial intelligence (AI)-related risks, such as algorithmic bias and lack of transparency, further exacerbate these problems. The study calls on policymakers to improve relevant regulatory frameworks and requires practitioners to receive specialized ethical training.
Flying ad hoc network applications, mobility models, routing protocols, and challenges: a review Taher M. Ghazal; Nabil El Kadhi; Munir Ahmad
International Journal of Advances in Applied Sciences Vol 15, No 3: September 2026
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijaas.v15.i3.pp1316-1333

Abstract

Applications of unmanned aerial vehicles (UAVs) are rapidly increasing in surveillance, disaster management, precision agriculture, logistics, environmental monitoring, and intelligent transportation systems. UAVs/drones have made their way towards the application of ad hoc networks. Multiple interconnected UAVs flying together have presented us with a new type of ad hoc network known as flying ad hoc networks (FANETs). While multiple small UAVs acting as a FANET offer a lot of benefits, there are also several challenges concerning this type of network. This study presents a systematic literature review (SLR) of FANET technologies by reviewing recent literature published between 2017 and 2025 from IEEE Xplore, Scopus, ScienceDirect, and Google Scholar databases. A structured review methodology based on inclusion and exclusion criteria was adopted to analyze more than 150 research articles. The study presents a comprehensive taxonomy of FANET mobility models and routing protocols, along with a comparative analysis of communication architectures, trajectory optimization methods, and implementation challenges. The findings reveal that routing efficiency, adaptive mobility models, secure communication, energy optimization, and scalable architectures are the major determinants of FANET performance. This article concludes that good connectivity, improved security, effective routing, carefully selected mobility models, and the architecture of FANET nodes are key parameters for obtaining optimal results.
Optimization of tensile strength and modulus elasticity from recycled mask polymer blends Indah Widiastuti; Slamet Jatmiko; Budi Harjanto; Arif Bagus Panuntun
International Journal of Advances in Applied Sciences Vol 15, No 3: September 2026
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijaas.v15.i3.pp894-901

Abstract

This research aims to analyze the effect of differences in the proportion of recycled polypropylene (r-PP), compatibilizer, and type of mask on the tensile strength and modulus of elasticity of recycled mask product materials. The research design used in this research uses the Taguchi orthogonal L4 experimental method, which uses a quantitative approach, namely by manipulating certain conditions and providing control over the test samples. This research focused on the effect of varying the proportion of r-PP composition, maleic anhydride polypropylene (MAPP) compatibilizer, as well as varying the type of mask waste used. In this research, the composition of r-PP used was 10% and 30%. Meanwhile, the MAPP composition used is 0% and 6%. In this study, tensile testing was carried out in accordance with the American Society for Testing and Materials (ASTM) D 638 standard type V in the form of a dogbone. The results of the research show that differences in the proportion of r-PP in the composition of the polymer mixture have an effect on the tensile strength and modulus of elasticity of the recycled mask product material.
Test rig development for overshot water wheels under low-head, low-flow conditions in pico-hydropower applications Izzatie Akmal Zulkarnain; Irma Wani Jamaludin; Mohd Farriz Basar; Kamaruzzaman Sopian
International Journal of Advances in Applied Sciences Vol 15, No 3: September 2026
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijaas.v15.i3.pp1227-1238

Abstract

This study presents the development and validation of a controllable experimental test rig for overshot water wheels operating under low-head and low-flow conditions commonly found in pico-hydropower resources. Many potential pico-hydro sites operate at heads below 1.5 m with minimal flow, where conventional turbines often experience reduced efficiency and suitable laboratory-scale testing facilities remain limited. The developed system consists of two high-density polyethylene (HDPE) water tanks, an adjustable-inclination water channel, a circulation pump, and an overshot water wheel equipped with recyclable polyethylene terephthalate (PET) bottle blades. The test rig operates within hydraulic range of 0.525 - 1.169 m head and 0.01 - 0.02 m³/s flow rate, enabling the simulation of realistic pico-hydropower conditions. Water velocity was regulated using the water trajectory method by varying the channel inclination angle between 10° and 50°, producing velocities ranging from 1.494 m/s to 4.519 m/s. Experimental results show stable and repeatable hydraulic conditions with measurement uncertainty of approximately ± 0.03 m/s. These findings demonstrate that the developed test rig provides a reliable platform for future investigations of overshot water wheel performance parameters, including rotational speed, angular velocity, force, torque, mechanical power, and efficiency in pico-hydropower applications.
One-day analysis of natural sound via very low frequency signal from Malaysian ionosphere Suryadi Suryadi; Mariyam Jamilah Homam; Rohaida Mat Akir; Mardina Abdullah
International Journal of Advances in Applied Sciences Vol 15, No 3: September 2026
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijaas.v15.i3.pp902-910

Abstract

This paper presents findings on the impact of lightning discharges on very low frequency (VLF) signal, which falls from 30 Hz up to 50 kHz has been used effectively for space parameter detection of the lower ionosphere signal propagation over Malaysia. Using a VLF line receiver installed at Universiti Kebangsaan Malaysia (Latitude 2° 55' N, Longitude 101° 46' E), observations conducted on 22 July 2009 revealed distinct diurnal variations. During the daytime, broadband and narrowband data were analyzed to investigate natural radio signals from transmitters in neighboring countries such as India, Japan, China, and Australia. The results reveal significant perturbations in VLF signal propagation caused by lightning discharges, leading to the detection of natural sferics, tweeks, and ionospheric disturbances. These phenomena, originating from radiated lightning discharge activity, were found to average 44 occurrences per hour during the afternoon and evening. The study highlights how these natural electromagnetic events contribute to amplitude and phase variations in VLF signals, offering deeper insights into ionospheric interactions with lightning activity. Additionally, the findings emphasize the presence of natural radio emissions such as sferics and their components, which further illustrate the effect of lightning discharges on the lower ionosphere above Malaysia.

Page 77 of 80 | Total Record : 797

 75   76   77   78   79 

Filter by Year

2012 2026


Reset
Filter By Issues
All Issue Vol 15, No 3: September 2026 Vol 15, No 2: June 2026 Vol 15, No 1: March 2026 Vol 14, No 4: December 2025 Vol 14, No 3: September 2025 Vol 14, No 2: June 2025 Vol 14, No 1: March 2025 Vol 13, No 4: December 2024 Vol 13, No 3: September 2024 Vol 13, No 2: June 2024 Vol 13, No 1: March 2024 Vol 12, No 4: December 2023 Vol 12, No 3: September 2023 Vol 12, No 2: June 2023 Vol 12, No 1: March 2023 Vol 11, No 4: December 2022 Vol 11, No 3: September 2022 Vol 11, No 2: June 2022 Vol 11, No 1: March 2022 Vol 10, No 4: December 2021 Vol 10, No 3: September 2021 Vol 10, No 2: June 2021 Vol 10, No 1: March 2021 Vol 9, No 4: December 2020 Vol 9, No 3: September 2020 Vol 9, No 2: June 2020 Vol 9, No 1: March 2020 Vol 8, No 4: December 2019 Vol 8, No 3: September 2019 Vol 8, No 2: June 2019 Vol 8, No 1: March 2019 Vol 7, No 4: December 2018 Vol 7, No 3: September 2018 Vol 7, No 2: June 2018 Vol 7, No 1: March 2018 Vol 6, No 4: December 2017 Vol 6, No 3: September 2017 Vol 6, No 2: June 2017 Vol 6, No 1: March 2017 Vol 5, No 4: December 2016 Vol 5, No 3: September 2016 Vol 5, No 2: June 2016 Vol 5, No 1: March 2016 Vol 4, No 4: December 2015 Vol 4, No 3: September 2015 Vol 4, No 2: June 2015 Vol 4, No 1: March 2015 Vol 3, No 4: December 2014 Vol 3, No 3: September 2014 Vol 3, No 2: June 2014 Vol 3, No 1: March 2014 Vol 2, No 4: December 2013 Vol 2, No 3: September 2013 Vol 2, No 2: June 2013 Vol 2, No 1: March 2013 Vol 1, No 4: December 2012 Vol 1, No 3: September 2012 Vol 1, No 2: June 2012 Vol 1, No 1: March 2012 More Issue