A5061747642- Fluid Dynamics and Turbulent Flows
- Computational Fluid Dynamics and Aerodynamics
- Heat Transfer Mechanisms
- Aerodynamics and Acoustics in Jet Flows
- Wind and Air Flow Studies
- Plant Surface Properties and Treatments
- Fluid Dynamics and Heat Transfer
- Adsorption and biosorption for pollutant removal
- Natural product bioactivities and synthesis
- Synthesis and biological activity
- Aeroelasticity and Vibration Control
- X-ray Diffraction in Crystallography
- Turbomachinery Performance and Optimization
- Lattice Boltzmann Simulation Studies
- Aerospace Engineering and Control Systems
- Sesquiterpenes and Asteraceae Studies
- RNA Interference and Gene Delivery
- Synthesis and Characterization of Heterocyclic Compounds
- Multicomponent Synthesis of Heterocycles
- Bioactive Compounds and Antitumor Agents
- Combustion and flame dynamics
- Click Chemistry and Applications
- Aerospace and Aviation Technology
- Aerodynamics and Fluid Dynamics Research
- Polymer Science and PVC
Vietnam Academy of Science and Technology
2012-2024
Hanoi University of Science and Technology
2014-2021
Thai Nguyen University
2020-2021
Laboratoire d'Hydrodynamique
2008
Dendrimer, a new class of hyper-branched polymer with predetermined molecular weight, is being received much attention in nano biomedical applications such as anticancer drug delivery, gene therapy, disease diagnosis and etc. In this study, polyamidoamine (PAMAM)-based dendrimer generation 3.0 (G 3.0) was synthesized subsequently pegylated. Obtained results showed that pegylation degree the around 31% for its external amine groups. TEM image pegylated exhibited spherical shape sizes ranging...
In this study, an experimentally and numerically investigation was carried out to obtain characteristics (lift force, drag force ...) on 74.5 degree Delta wing. The experiment tests were conducted at Hanoi University of Science Technology low-speed wind tunnel facility, whereas the numerical performed using commercial computational fluid dynamics software ANSYS/FLUENT. apparition vortices upon wing caused negative pressure distribution which reached a maximum absolute value vortex core. high...
Effects of turbulent flow to dynamic characteristic high sweep-back angle Delta wing were performed by numerical (SIM) and experiment (EXP) method in subsonic flow. The was based on CFD methods using ANSYS/FLUENT software, while conducted low speed wind tunnel (Mach number M=0.1). At Reynolds number, air velocity 2.5m/s, the investigated with attack 20 degree within four cases turbulence intensity, which varied from 0.5% 15% due parameter grid. Decay intensity without grid considered. Change...
In this paper, a simulation method was realized to predict aeroelastic response and characteristic parameters of wing structure. This developed base on interaction between Fluent solver Mechanical APDL using coupling system in ANSYS Workbench. AGARD 445.6 model chose for procedure at high speed. Obtained results were compared other numerical result experimental results. After that, experiment also setup suitable conditions study aeroelacticity characteristics specify quantitative as...
In Vietnam, Macrosolen tricolor is used for the treatment of bloating, broken bones, cough, diarrhea, diuretic, rheumatism, and laxative effects. The study aimed to identify in vitro antiproliferation anti-inflammation all fractions purified compounds from M. whole plants, as well silico molecular docking potentially cytotoxic compounds. As results, (MTH.I, MTH.II, MTE.I, MTE.II) strongly demonstrated antiproliferative properties against three tested cells, MDA-MB-231, RD, HepG2 (IC50 values...
The title compound, C
For the first time, phytochemical constituents of leaves
Aeroelasticity on airplane wing has a significant impact the efficiency and safety of flight. Therefore, study aeroelasticity problems is great attention in design process. To analyze this, three primary subjects aeroelastic phenomena that examination to focus on, which are wingtip oscillation amplitude, flutter frequency critical velocity wing. [1] As these highly dependent structures materials wings, therefore, aim this paper introduce structural calculation combination experimental models...
In the last several decades past, Helicopters UAVs (Unmanned Aerial Vehicles) have quickly developed and day by day, they play an important role in human life. As it is well-known, helicopters UAV make some outstanding characteristics such as light weight, flexibility particularly automatically controlled. By applying these characteristics, we research manufacture Helicopter using for spraying pesticide agriculture. One of most components main rotor because generated thrust, drag momentum....
Helicopter Unmanned Aerial Vehicle (HUAV) is recently used in agriculture due to its dynamic, flexible, vertically take-off/landing, hover and laterally fly. The HUAV was researched designed with purpose of greatly reducing manpower, limited direct contact human toxic substances, time working parallel improving quality yield. This paper focused on the main rotor blades 15 kg useful load. first then numerically validated by using computational fluid dynamic (CFD) tool ANSYS software....
This study reports a simple process of synthesizing and separating 3-substituted indole derivatives, which are 3-aminoalkylated indoles (AAIs) bis-(3-indolyl) methanes (BIMs), via an efficient one-pot multicomponent reaction under catalyst-free conditions. Synthesizing various substrates without using column chromatography is time-saving convenient. The structures all obtained compounds were determined FT-IR, 1D 2D NMR, high-resolution mass spectrometry. Fourteen novel (4f−p 5e−g) reported...
An experimental study of fluid flow and heat transfer has been carried out for a single slot jet impinging on concave surface. Experiments have conducted with nozzle exit Reynolds number (Reb = 3200), dimensionless height (H/b 7) relative curvature (Dc/b 5) to determine the coefficients under constant flux condition by infrared thermography (≈ 500 samples). The distributions mean velocity fluctuation surface measured using classical Particle Image Velocimetry 5000 presence an oscillatory...
The high population density in Vietnam create many challenges its urban development and supply of residential housing. To accommodate the large population, buildings tend to go vertical maximize ratio limited land space conservation natural geomorphology. building blocks reduces permeability for wind penetration. In extreme case, housing estate becomes a wind-obstructing structure that could be causing environmental problems health hazard due low level ventilation follow. So, better...
This paper aims to estimate the effect of turbulent inlet flow vortices on Delta wing with four different turbulence intensity from 0.5% 15% and taper ratios aerodynamic characteristics wings ratios: 0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7. The main purpose this is find out formation, development, breakdown when changing thence determining center range attack angles 5o 40o in low velocities about 2.5 m/s. research uses models a swept-back leading edge, root chord length 150 mm, thickness 5 mm....
Aeroelasticity is a science to study interaction between aerodynamic, elastic and inertial forces. Flutter the most dangerous aeroelasticity phenomena, that defined as dynamic instability of an object in airstream. Following flutter phenomenon, unsteady aerodynamic forces generated from deformations structure. It can lead disastrous structural failure. This paper examined properties flat copper alloy plate by combining simulation methods using ANSYS software experimental with help subsonic...