A5014021334- Wastewater Treatment and Nitrogen Removal
- Teleoperation and Haptic Systems
- Water Treatment and Disinfection
- Methane Hydrates and Related Phenomena
- Microbial Community Ecology and Physiology
- Anaerobic Digestion and Biogas Production
- Constructed Wetlands for Wastewater Treatment
- Robot Manipulation and Learning
- Land Use and Ecosystem Services
- Fecal contamination and water quality
- Membrane Separation Technologies
- Genomics and Phylogenetic Studies
- Nuclear and radioactivity studies
- Extraction and Separation Processes
- Remote Sensing in Agriculture
- Fatigue and fracture mechanics
- Microbial Fuel Cells and Bioremediation
- Innovations in Aquaponics and Hydroponics Systems
- Consumer Attitudes and Food Labeling
- Electrokinetic Soil Remediation Techniques
- Bacteriophages and microbial interactions
- Abdominal vascular conditions and treatments
- Advanced Welding Techniques Analysis
- Aquaculture disease management and microbiota
- Structural Integrity and Reliability Analysis
Hanoi University of Science and Technology
2016-2024
National Institute for Environmental Studies
2022-2024
Vietnam National University Ho Chi Minh City
2024
Hanoi Medical University
2024
Seoul National University
2024
Nagaoka University of Technology
2008-2022
Central Military Hospital
2021
108 Military Central Hospital
2021
Tay Nguyen University
2020
Thai Nguyen University
2020
Water quality parameters influence the abundance of pathogenic bacteria. The genera Aeromonas, Arcobacter, Klebsiella, and Mycobacterium are among representative bacteria identified in wastewater. However, information on correlations between water these bacteria, as well their reduction rate existing wastewater treatment facilities (WTFs), is lacking. Hence, this study aimed to determine rates bacterial groups WTFs. Sixty-eight samples (34 influent 34 non-disinfected, treated, effluent...
Our study aimed to assess the effect of enriched sludge and paddy soil as inocula on autotrophic nitrogen removal using hollow fiber membrane reactors. Mixed from parent reactors were inoculated into two separate upflow anaerobic reactors, UR1 UR2, respectively. Each reactor was constructed a plastic cylinder equipped with U-shaped gas diffuser. These operated for 240 days compare their performance under both non-specialized specialized conditions favoring either anammox, nitrite...
Abstract. This paper aims to predict the trend of land use cover (LULC) changes in Dak Nong province over time. Data from Landsat images captured 2009, 2015, and 2018 was employed analyze spatial distributions LULC categories. The Random Forest (RF) adopted classify into ten different classes. Besides, integration Multi-Layer Perceptron Markov Neural Network (MLP-NN) with Chain (MC) applied future region based on change detection previous years. For all classified images, overall accuracy...
Wastewater discharged from the coagulation process of natural rubber contains high concentrations organic compounds, mainly formic or acetic acid, and residual particles. These compounds pose serious issues during high-rate anaerobic digestion without pH adjustment solid removal in advance. In this study, an baffled reactor (ABR, working volume 68 L, ten compartments) was investigated for treatment such wastewater with a HRT 3.5 ± 0.9 days. The performance ABR evaluated stepwise increase COD...
In this study, granular sludge formation was carried out using an aluminum chloride supplement in upflow anaerobic blanket (UASB) reactor treating natural rubber processing wastewater. Results show that during the first 75 days after start-up of UASB with organic loading rate (OLR) 2.65 kg-COD·m(-3)·day(-1), it performed stably a removal 90% total chemical oxygen demand (COD) and still remained small dispersed flocs. However, added at concentration 300 mg·L(-1) OLR range increased up to 5.32...
Disturbance observer is significantly becoming the preferred approach since it offers distinct advantages of improving robustness force control and accuracy estimation. Current velocity information are reference inputs disturbance whereas external estimation output. Generally, without noise effects can be calculated by using low-pass filter but bandwidth data limited. To obtain wide sensing with low noise, we have utilized Kalman technique to estimate motor measured from both linear encoders...
In this paper, the objective is to analyze a robot system with consideration different levels of wire rope tension for human-robot applications. controller design, dual disturbance observers respect two operation modes, namely common mode and differential are designed applied controlling interaction force human. The variable algorithm proposed change mechanical bandwidth according motion movements. advantage points high low stiffness transmission combined together. From experimental results,...
The high temperature strength of the friction welded superalloy joint between cast polycrystalline Mar-M247 and forged IN718 alloys has been investigated under low cycle thermomechanical fatigue loadings, in comparison with those base materials.The experiments showed that lives dissimilar joints were significantly influenced by test conditions loading modes.Not only themselves but also failure positions mechanisms sensitive to mode.Especially which creep-fatigue interaction was pronounced,...
This study aimed to evaluate the nutritional status and activities of daily living older adults in a Vietnamese nursing home. A cross-sectional included 100 pepole aged ≥ 60 years old home Northern Vietnam 2023. The was estimated by energy intake, protein body mass index, three scales containing Mini assessment – short form (MNA-SF), simlified Nutritional Appetite Questionnaire (SNAQ), oral Health tool (OHAT). (ADL) assessed Katz Index Independence. relationship between ADL regresstion model...
Down-flow hanging sponge (DHS) reactors, employed in domestic wastewater treatment, have demonstrated efficacy eliminating Escherichia coli and other potentially pathogenic bacteria. The aim of this study was to elucidate the mechanism removal E. by employing a cube-shaped polyurethane carrier within compact reactor. An experiment conducted on prepared sponge. Escherichia. level found decrease more than 2 logs after passing through five nutrient-restricted DHS sponges. Conversely, newly...
The purpose of the study is to explore in-depth understanding participants' journeys from helplessness resilience and post-traumatic growth during COVID-19. participants’ experiences are taken into consideration examined in depth. To do so, we employ a phenomenological methodology which concerned particularly with individual exploratory. 90 participants (17 males, 72 females, other 1, aged 18-52) were invited participate survey two self-report questions. levels education include: graduate...
Abstract. Producing the map of land use cover change (LULCC) at local extent is fundamental for a variety applications such as vegetation, forest covers, soil degradation, and global warming. Understanding directions spread trend LULCC plays significant role in obtaining useful data authorities making land-use policies under context climate change. Dak Nong located Central Highlands Vietnam having largest tropical forest. Over past decades, natural region has significantly declined due to...
Information about sediment microbiota affected by microbial fuel cells (SMFC) is limited. A laboratory-scale SMFC was applied to a eutrophic lake under closed-circuit/open-circuit conditions. We analyzed the prokaryotes in adhering anode material. The archaeal family Methanoperedenceae predominant group closed-circuit
The integrity of subsea pipe girth welds is routinely ensured through Engineering Criticality Assessments (ECAs) based on fracture mechanics principles. In order to capture the whole design life, ECA must cover loadings that pipeline subjected during both installation and operation. Stress semi-analytical methods using Failure Assessment Diagrams (FAD) have been used extensively for ‘run mill’ assessments as far C-Mn steel with overmatching weld concerned. These stress are captured in depth...