Tạp chí Kỹ thuật và Công nghệ Đại học Quốc gia Thành phố Hồ Chí Minh

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Application of mathematical programming for optimal programming of Vietnamese fishing fleet
Tạp chí Kỹ thuật và Công nghệ Đại học Quốc gia Thành phố Hồ Chí Minh - Tập 2 Số 4 - Trang 213-222 - 2020
Tran Gia Thai
The Vietnamese fishing fleet has been developing spontaneously without programming and control. It has bring about detrimental effect on the operate of fishing fleet, especially with a serious impact on the resources. The programming of the fishing fleet, that has been set up by the our fisheries authority, but so far there is no satisfactory solution for the complexity of the problem. In this pap...... hiện toàn bộ
#genetic algorithm #programming of fishing boat fleet #mathematical programming #Ninh Thuan province
Developement of 3D printer for silicate-based materials
Tạp chí Kỹ thuật và Công nghệ Đại học Quốc gia Thành phố Hồ Chí Minh - Tập 2 Số SI2 - Trang SI1-SI14 - 2019
Manh-Quyen Dam, Minh-Thien Nguyen, Anh-Tu Tran, Thien-Toan Quan Le, Khanh-Son Nguyen, Tri-Huynh Ngoc Nguyen, Can Chi Trieu
3D printer and 3D printing technology are now considered as one of the key factor in the manufacturing industry. In the near future, we could envisage different application of 3D printing method in the sector of materials processing and production. In the sector of civil engineering, they existed somewhere some construction works developed with 3D printing technology.  In this study, we aim t...... hiện toàn bộ
Research and manufacture of automated guided vehicle for the service of storehouse
Tạp chí Kỹ thuật và Công nghệ Đại học Quốc gia Thành phố Hồ Chí Minh - Tập 1 Số 1 - Trang 5-12 - 2019
Ha Quang Thinh Ngo, Anh Son Tran
In the logistics, the storehouse management plays an important role. It is difficult to handle a large warehouse only with human. Therefore, an implementation of path tracking AGV robot is investigated as an automated solution. The analysis of hardware design and software programming is performed in this work. Besides, overall system is scheduled to realize the components. The use of the nonlinear...... hiện toàn bộ
Simulating behavior and evaluating rational parameters of the tubular steel joint using flanges and bolts by FEM analysis
Tạp chí Kỹ thuật và Công nghệ Đại học Quốc gia Thành phố Hồ Chí Minh - Tập 2 Số 4 - Trang 288-305 - 2020
Nguyen Trong Vinh, Le Anh Tuan
With many advantages, nowadays, the structure using tubular steel structure is more and more widely used in all kinds of construction. In response to the rapid development of the tubular steel structure, it has been had a lot of research about the joints of this structure. Welding joints and joints using flanges and bolts are used most popular in the tubular structure. However, most of the researc...... hiện toàn bộ
#tubular steel #flanges #high strength bolt #concurrent shear force and bending #mechanisms of destruction
A model for distribution systems performance evaluation
Tạp chí Kỹ thuật và Công nghệ Đại học Quốc gia Thành phố Hồ Chí Minh - Tập 3 Số 4 - Trang 596-619 - 2020
Mai Ha Phan Thi, Sang Ba Le, Linh Y Thai
In today's business environment, as the competitiveness becomes increasingly fierce, improving the business performance becomes more important. A major factor affecting business operations is distribution systems performance control. In a distribution network, if an independent point well manages its performance, the efficiency of the entire enterprise will improve. In order to do this, it is esse...... hiện toàn bộ
#Data envelopment analysis (DEA) #Hệ thống phân phối #Hồi qui Tobit #phân tích hiệu quả
Path tracking control for car-like robots by pid controller with time-varying parameters
Tạp chí Kỹ thuật và Công nghệ Đại học Quốc gia Thành phố Hồ Chí Minh - Tập 5 Số 3 - Trang 1642-1650 - 2022
Khanh Ly Trinh Thi, Hong Thai Nguyen
Wheel mobile robots have been widely applied to many areas of life, from serving people in services and industrial logistics to military fields. Applications of wheeled mobile robots such as floor cleaning robots, supermarket robots, logistics robots in hospitals, autonomous robots that guide automatic guidance in intelligent factories, military robots and agricultural robots. Thereby, we can see ...... hiện toàn bộ
#Car-like robot #Path tracking #PID control #NURBS curve.
Energy Efficiency Maximization for Full Duplex MIMO Cloud Radio Access Networks
Tạp chí Kỹ thuật và Công nghệ Đại học Quốc gia Thành phố Hồ Chí Minh - Tập 3 Số 3 - Trang 488-499 - 2020
Hoang Kha Ha, Xuan-Xinh Nguyen, Tien Ngoc Ha
This paper studies a joint precoder and fronthaul compression design for full-duplex (FD) miltiple-input-multiple-output (MIMO) cloud radio access networks (CRANs). A cloud control unit (CU) communicates with multiple downlink and uplink users through FD radio units (RUs) connected to the CU through fronthaul links which are limited capacity. We address the energy efficiency (EE) maximization prob...... hiện toàn bộ
Investigate the mechanical properties of Si/Ge (Ge/Si) core-shell nanowires: A molecular dynamics study
Tạp chí Kỹ thuật và Công nghệ Đại học Quốc gia Thành phố Hồ Chí Minh - Tập 3 Số 4 - Trang 620-630 - 2020
Tran The Quang, Nguyen Tuan Hung, Vu Le Huy, Do Van Truong, Vuong Van Thanh
Nanowires (NWs) have been used increasingly in practice due to their outstanding mechanical, physical, and chemical properties. In this paper, we use the molecular dynamics (MD) method to investigate the mechanical properties of NWs (Si/Ge, Ge/Si) with a core-shell structure under the axial tensile strain along the <100>/{100} direction. Our results show that the strength and elastic modulus...... hiện toàn bộ
Thermal oxidation of carbon monoxide in air using various self-prepared catalysts
Tạp chí Kỹ thuật và Công nghệ Đại học Quốc gia Thành phố Hồ Chí Minh - Tập 2 Số SI2 - Trang SI31-SI39 - 2019
Nguyen Nhat Huy, Bích Thảo Nguyễn Thị
Carbon monoxide (CO) is a very toxic pollutant emitted from wood fired boiler, which is widely used in small and medium enterprises in Vietnam. The treatment of CO containing flue gas faces many difficulties due to the inert property of CO and cannot be removed by traditional adsorption and absorption methods and one of the effective CO treatments is catalytic oxidation. Therefore, we aimed to pre...... hiện toàn bộ
#carbon monoxide #oxidation #catalyst #air pollution control
A mathematical model for teamwork scheduling problem in available time-windows
Tạp chí Kỹ thuật và Công nghệ Đại học Quốc gia Thành phố Hồ Chí Minh - Tập 3 Số SI1 - Trang SI50-SI58 - 2020
Lăng Văn Trần, Sơn Hồng Trang, Nguyên Tường Huỳnh
This paper deals with teamwork scheduling problem in available time windows. This problem has been posed by combining the three constraints are the jobs can split into some sub-jobs which should not be less than a threshold called splitmin, the jobs are only assigned into available time windows and the jobs can be assigned into many people in the organization. Since then the four properties of thi...... hiện toàn bộ
#parallel machine #splitting-job #available time-window #MILP model #assignment approach #SPT/LPT rule
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