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p-Index From 2021 - 2026
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All Journal International Journal of Electrical and Computer Engineering Jurnal Cita Hukum Emerging Science Journal
Tien, Nguyen Van
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Religion Humanities Computer Science & IT Electrical & Electronics Engineering Environmental Science Law, Crime, Criminology & Criminal Justice Social Sciences Other

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Fuzzy-proportional-integral-derivative-based controller for stable control of unmanned aerial vehicles with external payloads Tiep, Do Khac; Tien, Nguyen Van
International Journal of Electrical and Computer Engineering (IJECE) Vol 14, No 5: October 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijece.v14i5.pp5094-5106

Abstract

In the paper, a proportional derivative (PD) controller and a fuzzy system tuning gains from proportional integral derivative controller are applied to stabilize an unmanned aerial vehicle (UAV), to control the attitude. Inputs of fuzzy logical controller consist of the speed required for the distance between the current position of quadcopter and the defined reference point and differences between orientation angles and variance in differences. Outputs of fuzzy logical controller consist of the proportional integral derivative coefficients which make pitch, roll, yaw and height values. The fuzzy-PD control algorithm is real-time applied to the quadcopter in MATLAB/Simulink environment. Based on data from experimental studies, although both classical proportional integral derivative controller and fuzzy-PD controller have accomplished to track a defined trajectory with the quadcopter.
Compensation for Damage Caused by a Crime in the Socialist Republic of Vietnam and the Russian Federation Tien, Nguyen Van; Pushkarev, Viktor Victorovich; Tokareva, Ekaterina Viktorovna; Makeev, Alexey Vasilyevich; Shepeleva, Olga Rinatovna
Jurnal Cita Hukum Vol. 9 No. 2 (2021)
Publisher : Fakultas Syariah dan Hukum, UIN Syarif Hidayatullah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/jch.v9i2.21738

Abstract

In criminal proceedings of Vietnam, in contrast to the Code of Criminal Procedure of the Russian Federation, it is advisable to separate physical, material and moral damage that may be caused by the crime or socially dangerous act prohibited by the criminal law, the rights and legitimate interests of natural or legal persons. The article is devoted to solving the problem of compensation for damage caused by a crime in pre-trial proceedings in criminal cases, based on the study of Russian and Vietnamese criminal procedure legislation, practice, and results of its application. The conclusions are subject to study and implementation in the law.Keywords: Compensation for harm; Investigation; Rights and legitimate interests of participants in criminal proceedings Kompensasi untuk Kerusakan yang Disebabkan oleh Kejahatan di Republik Sosialis Vietnam dan Federasi Rusia Abstrak:Berbeda dengan Kode Acara Pidana Federasi Rusia, lebih baik dalam proses pidana Vietnam untuk memisahkan kerugian fisik, material, dan moral yang disebabkan oleh kejahatan atau tindakan berbahaya secara sosial yang dilarang oleh hukum pidana dari hak dan kepentingan sah orang atau badan hukum. Berdasarkan kajian undang-undang prosedur pidana Rusia dan Vietnam, praktik, dan hasil penerapannya, artikel ini dikhususkan untuk memecahkan masalah kompensasi atas kerusakan yang disebabkan oleh kejahatan dalam proses pra-persidangan dalam kasus pidana. Kesimpulan sedang dipelajari dan akan dimasukkan ke dalam undang-undang.Kata Kunci: Kompensasi untuk kerugian; Penyelidikan; Hak dan kepentingan sah peserta dalam proses pidana Возмещение вреда причиненного преступлением в социалистической республике Вьетнам и Российской Федерации АннотацияСтатья посвящена разрешению проблемы возмещения вреда, причиненного преступлением, в досудебном производстве по уголовным делам, на основе исследования российского и вьетнамского уголовно-процессуального законодательства, практики и результатов его применения. Выводы подлежат изучению и внедрению в законКлючевые Слова: возмещение вреда, расследование, права и законные интересы участников уголовного процесса, следователь, дознаватель
An energy-optimized A* algorithm for path planning of autonomous underwater vehicles in dynamic flow fields Tiep, Do Khac; Tien, Nguyen Van; Thanh, Cao Duc
International Journal of Electrical and Computer Engineering (IJECE) Vol 16, No 2: April 2026
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijece.v16i2.pp753-765

Abstract

This paper presents the development and implementation of an energy-optimized A* algorithm for autonomous underwater vehicle (AUV) path planning in these complex environments. The core of the approach is the integration of a computationally efficient flow field model and a detailed AUV energy consumption model directly into the A* search heuristic. The energy model considers factors such as drag forces, relative velocity between the AUV and the flow, and AUV maneuvering. The A* cost function is modified to prioritize paths that minimize the predicted total energy expenditure, while simultaneously ensuring obstacle avoidance and path feasibility. The algorithm was implemented and validated using a simulated environment with varying flow conditions. Results demonstrate that the proposed energy-optimized A* algorithm achieves a significant reduction in energy consumption – up to 50% in tested scenarios – compared to a standard A* implementation, while successfully generating collision-free and dynamically feasible paths. This work contributes a practical and effective solution for energy-aware AUV navigation in dynamic underwater environments, enabling longer mission durations and improved operational efficiency.
Recommendations Enhancing the Competitive Capacity of Small and Medium Enterprises after the Covid-19 Pandemic Tien, Nguyen Van
Emerging Science Journal Vol. 6 (2022): Special Issue "COVID-19: Emerging Research"
Publisher : Ital Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28991/esj-2022-SPER-09

Abstract

In Vietnam, the Covid-19 pandemic has taken place since the beginning of 2020, has seriously impacted businesses' production and business activities, and pushed the world economy into recession. Like other countries globally, Vietnam has been severely affected by this global pandemic. During the Covid-19 outbreak, small and medium enterprises (SMEs) that stopped production or went bankrupt increased. Besides, due to the deep integration into the global value chain now closed to the port, the findings explored that SMEs with a larger scale faced many difficulties. The number of enterprises having to shrink production also increased rapidly. Most businesses say the Covid-19 outbreak has negatively affected their production and trade. The primary official data is distributed directly to business leaders through detailed questionnaires to collect preliminary data and selected models by a simple random process. SMEs failed to reach customers, broke the supply chain, revenue plummeted, and laid off many workers, so far struggling. The study objectives found that more than 87% of businesses are affected by Covid-19. Therefore, the article novelty had several recommendations for enhancing the competitive capacity of small and medium enterprises in Vietnam after the Covid-19 pandemic. Doi: 10.28991/esj-2022-SPER-09 Full Text: PDF
Co-Authors Makeev, Alexey Vasilyevich Pushkarev, Viktor Victorovich Shepeleva, Olga Rinatovna Thanh, Cao Duc Tiep, Do Khac Tokareva, Ekaterina Viktorovna