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Vol. 105 (2025)

Published in August 2025

Published: 2025-08-25

Full Issue

Overview

Ballooncopter – A new prospective type of UAV

Tran Duy Duyen, Nguyen Duc Cuong, Mai Khanh, Nguyen Quoc Binh

3-10
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Electronics & Automation

Application of the SQP algorithm in leader–follower formation control

Duong Phu Tuan, Nguyen Tuan Minh, Nguyen Quang Vinh

11-19
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Synthesize control signal to electric drive systems of 2-wheel autonomous robots using PA-BLDC actuator

Le Ba Yen, Vu Quoc Huy

20-27
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Synthesis of nonlinear robust control for aerial vehicles under parameter uncertainties

Nguyen Viet Phuong, Nguyen Duy Khanh

28-35
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Designing an ECG signal measurement and analysis system using SVM algorithm for arrhythmia classification

Pham Van Nam, Nguyen Thu Ha, Pham Van Hung, Pham Van Minh, Tran Thi Hang

36-43
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Compact Ku-band monopulse microstrip stacked patch array antenna with hybrid power divider system

Le Nhu Thai, Le Thi Hang, Nguyen Hoai Son

44-51
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An enhanced random noise suppression method for fiber optic gyroscopes to improve gyrocompass performance

Nguyen Trong Yen, Nguyen Sy Long, Vu Doan Ket

52-59
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Chemistry, Biology & Environment

Investigation of the effects of heat treatment on the microstructure and mechanical properties of Pb-Sb alloy used in fabrication of anode spines for high-capacity lead-acid batteries

Ninh Duc Ha, Dinh Van Long, Nguyen Thi Ha Dong, Doan Tuan Anh, Dao The Nam, Doan Minh Cuong, Vu Minh Thanh

60-66
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Development of biodegradable lubricating grease for application in specialized equipment operating under marine environmental conditions

Tran Van Hien, Do Thi Thuy

67-74
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Evaluation of nitrate removal efficiency from aqueous solutions using modified biochar derived from coffee husk

Le Hong Minh, Vu Ngoc Toan, Nguyen Thi Thu Huong, To Phuong Linh, Le Thuy Trang, Le Xuan Dong, Dang Thi Ngoc Chau

75-82
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Research on the manufacturing of Fe2O3/TiO2-based adsorbent granules for application in treating Pb²⁺-contaminated water

Ngo Minh Tien, Tran Van Chinh

83-89
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Effect of some factors on the electrolysis production of sodium perchlorate from sodium chlorate using PbO2/Pb-Ti electrode

Nguyen Ba Ngoc

90-97
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Physics & Materials Science

Design of cooled MWIR continuous zoom optical system for long-range surveillance

Le Vu Nam, Pham Dinh Quy, Nguyen Thu Cam

98-105
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Optimization of adaptive nonlinear aspherical microlens using ZEMAX

Pham Thanh Quang, Ho Quang Quy, Tran Quoc Tuan

106-112
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Influence of technological parameters on the hot-pressed process of CaF2 optical ceramics

Nguyen Tuan Hieu, Tran Duc Long, Nguyen Dinh Quang

113-120
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Information Technology & Applied Mathematics

An ensemble model with feature selection for nearshore wave forecasting

Chu Thi Quyen, Ngo Thi Thanh Hoa, Nguyen Thi Cam Ngoan

121-129
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Ontology-based query graph matching

Doan Quang Tu

130-138
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Mechanics & Mechanical Engineering

Research on methods for measuring and controlling the modulation index of a frequency-modulated interferometer for high-precision displacement measurement

Hoang Anh Tu, Vu Thanh Tung, Pham Anh Tuan

139-146
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Research on optimization of surface roughness of aspherical aluminum during Single-Point Diamond Turning using BBK model and PSO algorithm

Dao Van Duong, Nguyen Kim Hung, Ngo Van Tuan, Vu Thi Khanh Van, Duong Xuan Bien

147-154
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Study on a two-step polishing method using pulsed fiber laser for SKD11 tool steel components

Le Van Van, Vu Thanh Tung, Trinh Quang Hung, Phan Tien Thanh, Tran Van Chau

155-162
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Study on the effect of rotating shaped charge liner material on penetration depth using the SPH numerical simulation method

Bui Xuan Son, Phung Van Cuong, Do Van Minh, Hoang Van Cuong, Dang Hong Duy

163-170
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