A5043778139- Iron oxide chemistry and applications
- Nanoparticle-Based Drug Delivery
- Nanomaterials for catalytic reactions
- Magnetic Properties and Synthesis of Ferrites
- Characterization and Applications of Magnetic Nanoparticles
- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Gold and Silver Nanoparticles Synthesis and Applications
- Supercapacitor Materials and Fabrication
- Membrane Separation Technologies
- Multilevel Inverters and Converters
- Electrospun Nanofibers in Biomedical Applications
- Adsorption and biosorption for pollutant removal
- Analytical chemistry methods development
- Catalytic Processes in Materials Science
- Obesity, Physical Activity, Diet
- Pharmaceutical and Antibiotic Environmental Impacts
- ZnO doping and properties
- Membrane-based Ion Separation Techniques
- Silicon Carbide Semiconductor Technologies
- Water Systems and Optimization
- Advanced Battery Technologies Research
- Hydraulic and Pneumatic Systems
- Advanced DC-DC Converters
- Smart Parking Systems Research
Vietnam Academy of Science and Technology
2025
Institute for Tropical Technology
2025
Thai Nguyen University
2014-2025
University of Ulsan
2021-2024
Hanoi University of Science and Technology
2017-2022
VNU University of Science
2016-2021
Hue University
2021
Vietnam National University, Hanoi
2021
Vietnam National University Ho Chi Minh City
2021
Le Quy Don Technical University
2021
This paper presents direct digital technique-generalized discontinuous pulse width modulation (PWM) - a new implementation method for an optimal PWM (DPWM) in terms of switching losses the inverter on embedded system. At each sampling period, choice is done order to clamp one three half-bridges. Its advantages compared classic ones are as follows: needless know load power factor, operational under steady-state and dynamic operating conditions, low computation time. The proposed algorithm...
In this paper, the coating of TiO2 nanoparticles onto surface a polyamide thin film composite nanofiltration membrane has been studied. Changes in properties and separation performance modified membranes were systematically characterized. The experimental results indicated that hydrophilicity was significantly improved by presence coated with subsequent UV irradiation. UV-irradiated TiO2-coated great enhancement flux very high retention for removal residual dye an aqueous feed solution....
This paper presents a new pulse width modulation (PWM) strategy, called extended double carrier PWM, for two-level voltage source inverter aiming at reducing the RMS current flowing through dc link filtering capacitors on embedded systems over large index range and high-power factor loads (cos φ ≥ 0.8). Instead of utilizing two adjacent active vectors each switching period as in classic PWM strategies, this strategy utilizes nonadjacent case low-modulation or three consecutive...
Two previous surveys conducted in Ho Chi Minh City revealed an increasing prevalence of overweight and obese adolescents, from 5.9% 2002 to 11.7% 2004. From 2004 2010, the government set up implemented health promotion programs promote physical activity good nutritional habits order prevent obesity children adolescents. Our study aimed estimate among adolescents urban areas 2010. A representative sample 1,989 students aged 11–14 years was selected using a multistage cluster sampling method....
Controlling the morphology and magnetic properties of CoFe2O4 nanoparticles is crucial for synthesis compatible materials different applications. were synthesized by a solvothermal method using cobalt nitrate, iron nitrate as precursors, oleic acid surfactant. The formation was systematically observed adjusting process conditions including reaction temperature, time, concentration. Nearly spherical, monodispersed formed changing time temperature. acid-coated inhibited growth particle size...
Abstract The photocatalytic activity of the ZnO NRs/CuO composite film was investigated by using both experimental and numerical methods. exhibits significantly enlarge absorption range to visible-light suppress recombination rate photogenerated electron-hole pairs, which can be well utilized as a photocatalyst. also presents good stability, reusability, durability for photo-decomposition purpose. optimal contains 1μ-thick CuO 10 nm-thick NRs film. donor concentration in should lower than 16...
Hospital wastewater (HWW) is a major pollutant that presents significant risks to both environmental and human health. In this study, we developed novel, inexpensive highly antibacterial magnetic nanocomposite composed of Fe3O4 nanoparticles synthesised from spent pickling liquors, coated with chitosan then integrated polyhexamethylene guanidine hydrochloride (Fe3O4@CS@PHMG) using sodium tripolyphosphate (TPP) as crosslinking agent. The obtained results revealed the exhibited high activity...
This paper focuses on algorithms and technologies for unmanned aerial vehicles (UAVs) networking across different fields of applications. Given the limitations UAVs in both computations communications, usually need either low latency or energy efficiency. In addition, coverage problems should be considered to improve UAV deployment many monitoring sensing Hence, this work firstly addresses common applications groups swarms. Communication routing protocols are then reviewed, as they can make...
Targeted delivery and controlled release of drugs has been considered to be an important therapeutic approach since it could allow a better treatment efficiency less side effects. In this research, magnetite Fe3O4 nanoparticles were successfully synthesized via the coprecipitation method then loaded in alginate beads with berberine as drug model for application. Various factors such pH values suspended environment surface modifications carrier exploited adjust amount release. More...
There currently exists no data on birth defects from population-based studies in Vietnam. Our study's aim was to assess external defect (EBD) prevalence among live newborns Binh Thuan Province Vietnam with the help of health workers at all levels system. A 2-month training session for 452 professionals (HP) practicing delivery care 127 Commune Health Stations (CHS) and 12 provincial or district hospitals (DH) setup 2006. After a successful 6-month pilot study, one-year registry EBDs...
In the present work, adsorption of anionic azo dye, new coccine (NCC) on silica and silica-gel in an aquatic environment was discovered. Effective conditions such as time, pH, influence dosage NCC using strong polycation, poly-diallyl-dimethylammonium chloride (PDADMAC) modified (PMS) PDADMAC (PMSG) were systematically studied. The removal PMS PMSG much higher than that raw without all pH ranges from 3 to 10. onto achieved maxima at same contact time 30 min, 6. optimum adsorbent dosages for...
Monodisperse magnetite nanospheres with hollow interior structure were synthesized through one‐pot solvothermal process, in an isothermal environment at 200°C for 12 h, using a sole iron precursor (FeCl 3 .6H 2 O) and without any template. We demonstrated the development of spheres by characterizing systematically changes morphology crystal different processing times. also provided cross‐sectional images Fe O 4 times to visualize hollowing process inside time. A detailed mechanism form was...