Search
Author
- Quan-Hoang Vuong (27)
- Anh-Tuan Le (17)
- Vuong QH (12)
- Anh D. Phan (11)
- next >
Subject
- Electrospinning (8)
- Nanoparticles (6)
- Compound droplet (5)
- Machine learning (5)
- next >
Date issued
- 2020 - 2022 (485)
- 2010 - 2019 (19)
- 2002 - 2009 (2)
Has File(s)
Search Results
Research, development and application of alternative fuels are common approaches in many countries around the world to reduce dependence on fossil fuels, to improve energy security as well as to decrease environmental pollution such as the greenhouse gas emission. The use of biodiesel fuels as an alternative fuel for petroleum diesel fuel is very effective for the reduction of CO2 emission, because biodiesel is produced from renewable biomass resources. However, there are a few of the using biodiesel research on CRDI (Common Rail Direct Injection) diesel engine. This paper describes a real time CRDI diesel engine 2.5TCI-A HYUNDAI STAREX simulations with blends of palm oil derived biodiesel and diesel using Matlab simulink software. The results show small deviation from cylinder pres... |
This article presents a cylinder-type magnetic camera (CMC) system in nondestructive testing (NDT) of a heat exchanger (HX) tube. The CMC system is developed for the inspection of corrosion on HX tubes of nuclear power plants. The CMC probe works based on the principle of eddy current testing, in which a single-large bobbin coil is used to supply eddy current on the tube, and a matrix array of InSb Hall sensor is used to measure the electromagnetic field around the corrosion. The CMC system can measure both the real and imaginary components of the magnetic field. The CMC system can operate in two modes: single-line scan mode by selecting a single-line Hall sensor or area scan mode by the electrical scan. The limitations and advantages of each operation mode will be presented. The CM... |
Managing procedure for charging and discharging battery system plays an essential contributor in improving the performance of energy storage system for example increment of utilizing batteries. This paper aims to develop a new hybrid genetic algorithm-based proportional integral (GA-based PI) controller with an adaptive neuro-fuzzy inference system (ANFIS) for the charging balance of batteries. The dataset is generated by using the GA-based PI controller, then a training strategy is introduced for the ANFIS controller. The proposed approach is evaluated by the GA-based PI controller and the PI controller based on Ziegler Nichols method |
The nonlinear static buckling analysis of magneto-electro-elastic sandwich plate on Pasternak-type elastic foundations subjected to the mechanical, thermal, electric and magnetic loadings is presented in this paper. The sandwich plate is composed of an auxetic honeycomb core with negative Poisson’s ratio and two face sheets made of magneto-electro-elastic material. The system basic equations are derived based on the Reddy’s higher order shear deformation plate theory taking into account the effect of von Kármán the kinematic nonlinearity and initial imperfection. The form of possible solutions and electric, magnetic potentials are chosen as trigonometric functions based on two cases of boundary conditions. The relationship between axial compressive loading and dimensionless deflect... |
Transparent electrodes (TEs) are pivotal components in many modern devices such as solar cells, light-emitting diodes, touch screens, wearable electronic devices, smart windows, and transparent heaters. Recently, the high demand for flexibility and low cost in TEs requires a new class of transparent conductive materials (TCMs), serving as substitutes for the conventional indium tin oxide (ITO). So far, ITO has been the most used TCM despite its brittleness and high cost. Among the different emerging alternative materials to ITO, metallic nanomaterials have received much interest due to their remarkable optical-electrical properties, low cost, ease of manufacturing, flexibility, and widespread applicability. These involve metal grids, thin oxide/metal/oxide multilayers, metal nanowir... |
A theoretical approach to quantitatively determine the photothermally driven enhancement of molecular mobility of graphene-indomethacin mixtures under infrared laser irradiation is proposed. Graphene plasmons absorb incident electromagnetic energy and dissipate them into heat. The absorbed energy depends on optical properties of graphene plasmons, which are sensitive to structural parameters, and concentration of plasmonic nanostructures. By using theoretical modelling, temperature gradients of the bulk drug with different concentrations of graphene plasmons are calculated. From these, the temperature dependence of structural molecular relaxation and diffusion of indomethacin are determined and how the heating process significantly enhances the drug mobility is found out. |
Different countries have responded to the pandemic with distinct domestic and international travel restrictions. The purpose of this paper is to investigate the stringency of the coronavirus disease 2019 (COVID-19) countermeasures in Japan against their G20 cohorts. Primary data were monitored at a ski resort in Kyushu regarding the social acceptance of initial COVID-19 countermeasures, ranging from hygiene and local “lockdowns” to border control measures. |
Satirical cartooning in Vietnam is subject to a complex dynamic: an increasingly liberalised and internationalised economy, and the rise of social media in a one-party state. This article examines what state-sanctioned satirical cartoons can reveal about the representation and management of political criticism in such a context. We find a growing trend of depicting corruption as a systemic problem, which is present in 45 per cent of the sample and in 70 per cent of the 20 most-viral cartoons in one of Vietnam’s most popular magazines, Tuoi Tre Cuoi (Youth Humour). This trend can be interpreted as a change in the sensibility of audiences and a shift toward a more tolerant media landscape. The trend, however, may also be a worrying sign of the dual dangers of cynicism in Vietnamese po... |
In our search for novel small molecules activating procaspase-3, we have designed and synthesized two series of novel (E)-N'-arylidene-2-(2-oxoindolin-1-yl)acetohydrazides (4) and (Z)-2-(5-substituted-2-oxoindolin-1-yl)-N'-(2-oxoindolin-3-ylidene)acetohydrazides (5). Cytotoxic evaluation revealed that the compounds showed notable cytotoxicity toward three human cancer cell lines: colon cancer SW620, prostate cancer PC-3, and lung cancer NCI-H23. Especially, six compounds, including 4f–h and 4n–p, exhibited cytotoxicity equal or superior to positive control PAC-1, the first procaspase-3 activating compound. The most potent compound 4o was three- to five-fold more cytotoxic than PAC-1 in three cancer cell lines tested. Analysis of compounds effects on cell cycle and apoptosis demonstr... |
In this paper, we report a simple method for enhancing the electrical property of silver nanowire transparent conductive electrodes (AgNW-TCE). When scotch tape was attached to the surface of AgNW-TCE and then removed, the sheet resistance of the AgNW-TCE was drastically decreased, while the transmittance was insignificantly lost; namely, the sheet resistance was reduced from 98.5 Ω/□ to 27.3 Ω/□ and the transmittance was decreased from 92% to 89%. The improved sheet resistance could be due to the transfer of the glue on the tape onto the AgNW-TCE, resulting in better contact at the junction between AgNWs. |
