Trường Đại học Bách khoa - Đại học Quốc gia Thành phố Hồ Chí Minh
Công bố khoa học tiêu biểu
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OPTIMIZATION OF TECHNOLOGICAL PARAMETERS IN THE SPRAY DRYING OF COCONUT MILK POWDER WITH HIGH FAT CONTENT
Tạp chí Phát triển Khoa học và Công nghệ Đại học Quốc gia Thành phố Hồ Chí Minh - Tập 12 Số 4 - Trang 68-74 - 2020
This research focuses on the spray drying of coconut milk powder with high fat
content (50% of dry weight). The spray drying was carried out by Mobile Minor TM
2002 systems (Niro, Denmark). The influence of different technological
parameters on the spray drying was examined. The central composite design method
was used for operation optimization. Some optimal technological parameters of
the spray ...
DEVELOPMENT OF AN AUTOUMATIC DATA PROCESSING FOR TRIAXIAL COMPRESSION TEST
Tạp chí Phát triển Khoa học và Công nghệ Đại học Quốc gia Thành phố Hồ Chí Minh - Tập 11 Số 3 - Trang 49-57 - 2021
In triaxial compression test using in soil mechanics, three parameters need to
be monitored: pressure, displacement and drainage volume during testing time.
The drainage volume during the test flows through a vertical pipe which
accompanied with a ruler. Pressure and displacement are indicated by gauges. In
manual operation, these parameters are recorded by examiner after certain
duration. This pa...
The linkage between enterprises and universities: compare the resul between Ho Chi Minh city and Lam Dong province
Tạp chí Phát triển Khoa học và Công nghệ Đại học Quốc gia Thành phố Hồ Chí Minh - Tập 18 Số 4 - Trang 124-133 - 2015
This thesis's purpose is to deep dive into the determinants of enterprises
-universities linkage, to compare and contrast the results between Ho Chi Minh
City and Lam Dong Province from enterprises' perspective. Four factor groups
were identified. The two supportive factor groups are the context and the
organization factors. The other two - inhibitive factor groups, which are
negatively correlated...
A vision anti-sway control algorithm for container cranes
Tạp chí Phát triển Khoa học và Công nghệ Đại học Quốc gia Thành phố Hồ Chí Minh - Tập 20 Số K1 - Trang 35-41 - 2017
In this paper, a control scheme is proposed for an automated container crane.
The proposed control scheme includes position control (for the trolley) and sway
control algorithms (for the payload) where PID control is used for position
control and PD control is assigned for sway control. The proposed control scheme
employs the feedback signal of the sway angle, which is acquired by a vision
system....
#Container crane control #object tracking #sway suppression #port automation
Assessing consumer-perceived food quality using conjoint analysis
Tạp chí Phát triển Khoa học và Công nghệ Đại học Quốc gia Thành phố Hồ Chí Minh - Tập 17 Số 3 - Trang 21-31 - 2014
Quality is considered the most indispensable means to compete in the marketplace
for all food companies. Apart from the objective quality concerning the physical
– chemical – microbiological characteristics, which links to the concept of food
security; the subjective quality concerning the quality as perceived by
consumers is utmost important since it links to the concept of consumer demand
[1]. T...
APPLICATION OF THE UNSUPERVISED NEURAL NETWORK FOR DIAGONOSING FAULTS IN A SPUR GEAR SYSTEM
Tạp chí Phát triển Khoa học và Công nghệ Đại học Quốc gia Thành phố Hồ Chí Minh - Tập 12 Số 8 - Trang 29-37 - 2020
In transmission, gearbox with normal teeth is used popularly. Now, fault
detection of gearbox is made by listening to abnormal noise and opening the
gearbox to find the fault. This work takes much time and labour and results are
not always exact. In this paper, vibration signal caused by fault are recorded
and transformed into spectrum. The spectrum is used to train the unsupervised
neural network...
Applying Carroll’s CSR pyramid in studying employees’ perceptions of corporate social responsibility
Tạp chí Phát triển Khoa học và Công nghệ Đại học Quốc gia Thành phố Hồ Chí Minh - Tập 16 Số 2 - Trang 67-77 - 2013
The study is to evaluate how employees perceive four types of responsibilities
in Carroll’s CSR pyramid (1991), consisting of economic, legal, ethical and
philanthropic responsibilities. Moreover, the study also identifies whether
there are any differences in employees’ perceptions of CSR in Vietnam from those
in other developing countries. Research findings provide some salient points.
First, fro...
Stimulation of wound healing process through ROS/RNS signals indirectly generated by N2/Ar micro-plasma - in vitro and in vivo studies
Tạp chí Phát triển Khoa học và Công nghệ Đại học Quốc gia Thành phố Hồ Chí Minh - Tập 18 Số 2 - Trang 29-37 - 2015
In this work, non-thermal N2/Ar micro-plasma was applied to fibroblast cells and
second degree burn in mice to investigate the bio-safety and bioefficiency of
micro-plasma device for studying wound healing process. The chosen parameters of
the device were the addition of 0.5% N2 in argon plasma and RF supplied power of
17 W and 13 W in vitro and in vivo studies, respectively. Firstly, micro-plasma...
Applying logistic regression method to determine combinatorial optimization of landslide-related factors and construct landslide hazard map in Khanh Vinh district, Khanh Hoa Province
Tạp chí Phát triển Khoa học và Công nghệ Đại học Quốc gia Thành phố Hồ Chí Minh - Tập 20 Số K4 - Trang 76-83 - 2017
The purpose of this study is to produce landslide hazard map in Khanh Vinh
district, Khanh Hoa province using logistic regression method integrated with
GIS analytical tools. The spatial relationship between landslide-related factors
such as topography; lithology; vegetation; maximum precipitation in year;
distance from roads; distance from drainages; distance from faults and the
distribution of l...
DSP-based pulse width modulation generator for very Spare Matrix Converter
Tạp chí Phát triển Khoa học và Công nghệ Đại học Quốc gia Thành phố Hồ Chí Minh - Tập 18 Số 3 - Trang 122-131 - 2015
This paper present a modulation scheme for the Spare Matrix Converter (SMC)
topology. The proposed method uses the space vector modulation (SVPWM) technique
to control the converter’s rectifier stage and inverter stage. This method
achieved the maximum modulation ratio of 0.866 with sinusoidal input/output
current waveforms. In the other hand, a simple real-time implementation method
avoiding addi...
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