Tạp chí Phát triển Khoa học và Công nghệ Đại học Quốc gia Thành phố Hồ Chí Minh
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THE PROCESSING OF DISALIGNMENT MEASUREMENTS BY USING GEODETIC NETWORK ADJUSTMENT PROGRAM
Tạp chí Phát triển Khoa học và Công nghệ Đại học Quốc gia Thành phố Hồ Chí Minh - Tập 7 Số 2 - Trang 65-72 - 2021
This paper presents basic theory to process disalignment measurements by using
geodetic network adjustment program. For two modeling examples, the results from
this method have small deviation compared with well-know formulae. This
deviation is acceptable since it is smaller than one-sigma of disalignment.
APPLICATION OF THE POSITRON TRAPPING MODEL WITH DETRAPPINGEFFECT TO STUDY THE FORMATION ENERGY OF MONOVACANCY IN SOME METALS
Tạp chí Phát triển Khoa học và Công nghệ Đại học Quốc gia Thành phố Hồ Chí Minh - Tập 1 Số 5 - Trang 44-49 - 2021
By applying the positron model (PMT) without detrapping effect, the formation
energy of monovacancy in metals In, Zn, Cd, AI, Pb is calculated. If the
positron trapping model (PMT) with trapping effect is used, then the formation
energy of monovacancy in metals In, Zn, Cd, AI, Pb are: 0,49±0.01eV,0.37
±0.02eV,0.32±0.02eV,0.49±0.02eV and 0,46±0.02eV respectively. From these
results, the ratios of c...
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...
Petroleum system modeling in cenozoic sediments, Block 05-1a, Nam Con Son Basin
Tạp chí Phát triển Khoa học và Công nghệ Đại học Quốc gia Thành phố Hồ Chí Minh - Tập 20 Số K4 - Trang 91-102 - 2017
Based on the update of exploration data the oil and gas potential within block
05-1 are studied through define the source rocks, Hydrocarbon (HC) generation,
expulsion and migration, focusing on source rock Oligocene /Early Miocene and
Middle Miocene; Define the accumulation of hydrocarbon in Lower Miocene targets;
The results of assessments for source rock, oil sampling analysis is used to
determ...
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...
PRELIMINARY STUDY ON PRESERVATION OF RECOMBINANT hG-CSF BY LYOPHILIZATION
Tạp chí Phát triển Khoa học và Công nghệ Đại học Quốc gia Thành phố Hồ Chí Minh - - 2020
hG-CSF is a cytokine that stimulates the proliferation, differentiation,
function of mature neutrophils and is generally used for treatment of
neutropenia in cancer patients under chemotherapy or other diseased patients.
After production process, E. coli-derived recombinant hGCSF is usually available
as non-glycosylated, liquid protein, so that it’s often unstable, easy to lose
their biological ac...
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
PREPARING AND INVESTIGATING THE CHARACTERISTICS OF SOLAR ENERGY ABSORBABLE NIO, THIN FILM
Tạp chí Phát triển Khoa học và Công nghệ Đại học Quốc gia Thành phố Hồ Chí Minh - Tập 7 Số 12 - Trang 23-25 - 2021
NiO, thin films are prepared by Dc magnetron sputtering on glass substrates.
Light enegy absorption of films is investigated by transmittance and reflexive
spectra. This work studies the efficiency of transformation from optical to
thermal energy.
The impact of carbon additives on lithium ion diffusion kinetic of LiFePO4/C composites
Tạp chí Phát triển Khoa học và Công nghệ Đại học Quốc gia Thành phố Hồ Chí Minh - Tập 22 Số 1 - Trang 173-179 - 2019
Introduction: LiFePO4/C composites were synthesized via physical mixing assisted
solvothermal process. Different kinds of carbon materials were investigated
including 0D (carbon Ketjen black), 1D (carbon nanotubes) and 2D (graphene)
materials. X-rays diffraction patterns of carbon coated LiFePO4 synthesized by
solvothermal was indexed to pure crystalline phase without the emergence of
second phase...
#LiFePO4 #composite #carbon materials #lithium ion kinetics #lithium ion batteries
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