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
The COVID-19 pandemic has disrupted the lives of many. Particularly, nursing students experience greater stress as their normal curriculum is interrupted and some of them face the risk of being infected as frontline workers. Nursing faculty members may face similar struggles, in addition to developing teaching materials for online learning. Thus, it is important to examine the faculty members' and students' views on their ability to adapt during the pandemic to obtain a holistic view of how learning and training has been affected |
A variety of deep learning schemes have endeavoured to integrate deep neural networks (DNNs) into channel coded systems by jointly designing DNN and the channel coding scheme in specific channels. However, this leads to limitations concerning the choice of both the channel coding scheme and the channel paramters. We circumvent these impediments and conceive a turbo-style multi-carrier auto-encoder (MC-AE) for orthogonal frequency-division multiplexing (OFDM) systems, which is the first one that achieves the flexible integration of DNN into any given channel coded systems while achieving an iteration gain. More explicitly, first of all, we design the MC-AE independently of both the channel coding arrangement and of the channel model, where the output layer of the MC-AE decoder is des... |
Electronic word of mouth (eWOM), enabled by social media, has been widely recognized as an influential marketing tool. It has been suggested that personality influences how people accept information originating in eWOM, but most research has not connected personalities with behavioral intention or information use. This study aimed to assess the link between eWOM and personalities on intention to choose a tourism destination. The research model was developed from the Big Five personality model and the information adoption model (IAM). An analysis of 647 participants in Vietnam confirmed that IAM can predict behavioral intention for tourism destinations, thereby adding to the literature, which so far has mainly utilized the technology adoption model. The result also shows that persona... |
It is well-known that the amount of glucose in the blood that exceeds the normal sugar blood range can cause diabetes, which is one of the most dangerous diseases that thread human health. Amongst a lot of methods that have been developed to measure glucose levels, electrochemical glucose sensors have attracted more attention due to their accuracy and efficiency. In our work, a simple, instant, and economical chemical process was conducted to deposit NiO nanostructures on the surface of a nickel foam electrode for non-enzymatic glucose electrochemical sensor. The morphologies and components of synthesised materials were characterised by field emission scanning electron microscopy and energy-dispersive X-ray spectroscopy. Cyclic voltammetry and chronoamperometry were used to measure ... |
In the present work, we report on the dye removal efficiency of Cobalt chromite, CoCr2O4 nanoparticles synthesized via the solvothermal method. The obtained CoCr2O4 nanoparticles demonstrated that the dye removal efficiency of CoCr2O4 nanoparticles could be enhanced by a reduction of size or improved water dispersibility |
Einstein-Cartan gravity, which is an alternative formulation of general relativity, introduces new degrees of freedom contained in the torsion field which encodes the torsion feature of spacetime |
Despite their high power density, aqueous-based electric double-layer capacitors (EDLCs) possess relatively low energy density due to the limitation of potential window (~1.0 V) and low specific capacitance of active materials. To increase the energy density without sacrificing the power density, it is highly desired to achieve a simultaneous improvement of both specific capacitance and potential window of EDLCs. However, this remains a major challenge that is not been solved up to date. This work demonstrates that by inserting a polarized-polyvinylidene fluoride (PVDF) ferroelectric layer underneath the graphene, a simultaneous enhancement of both areal capacitance and potential window is achieved, in which the areal capacitance increases from 5.5 to 7.5 μF/cm2 (i.e., 36%) (or 55 F... |
This study describes the willingness of receiving the COVID-19 booster doses for adults and their children 12–17 years old, and its related factors in Vietnam. A cross-sectional study was conducted through a national online survey from November 17 to November 24, 2021 using Google Form. Study respondents were Vietnamese citizens who were ≥18 years old and currently living in Vietnam. A total of 900 complete responses were analyzed and of those 93.77% were willingness to receive the booster dose. Participants with a university degree or higher were 8.16 times higher in willingness than those with primary school (p = .017). Those who received the first or the second dose of the COVID-19 vaccine were 5.85 (p = .001) and 5.65 (p < 0.001) times higher in willingness to receive booster do... |
This paper introduces the LQR control algorithm for the active suspension system. Because the model of the vehicle dynamics used in this paper includes a hydraulic actuator, therefore, this model will include five state variables. Besides, the process of linearization of the hydraulic actuator is also shown in this paper. This is a completely novel and original method. It is possible to describe almost all the characteristics of hydraulic actuators with just one linear differential equation. Also, the parameters of the LQR controller are optimized through the in-loop optimization algorithm. The results of the research showed that the values of displacement and acceleration of the sprung mass were significantly reduced when this algorithm was used. In the investigation cases, these v... |
Autonomous Underwater Vehicle (AUV) has become the main tool for exploring the oceans in the fields of science, the military and the marine economy... However, the energy problem for AUV has always been of interest to many researchers. AUV’s missions are time-limited by constraints of onboard vehicle power. Most missions are therefore short, from 4 to 15 hours duration. Solar energy is an effective renewable energy source and has increasingly been used in many fields. We can see that if the Solar Autonomous Underwater Vehicles (S-AUV) has the little surface area then the efficiency of solar collector is low. Hence, we need to optimize the structure of S-AUV. When designing a SAUV in particular and an AUV in general, one of the first concerns is structural shapes, energy and propulsi... |
