A5020616409- Coral and Marine Ecosystems Studies
- Marine and fisheries research
- Marine and coastal plant biology
- Marine Bivalve and Aquaculture Studies
- Oceanographic and Atmospheric Processes
- Recommender Systems and Techniques
- Marine and coastal ecosystems
- Aquaculture Nutrition and Growth
- Marine Sponges and Natural Products
- Water Resources and Sustainability
- Coastal wetland ecosystem dynamics
- Fish Biology and Ecology Studies
- Geological and Geophysical Studies
- Aquaculture disease management and microbiota
- Fish Ecology and Management Studies
- Text and Document Classification Technologies
- Image Retrieval and Classification Techniques
- Vibrio bacteria research studies
- Reproductive biology and impacts on aquatic species
- AI in Service Interactions
- Coastal and Marine Dynamics
- Geophysics and Gravity Measurements
- Identification and Quantification in Food
- Water Quality Monitoring Technologies
- Meteorological Phenomena and Simulations
Vietnam Academy of Science and Technology
2012-2024
Institute of Oceanography
2006-2024
International University
2024
Institute of Marine Geology and Geophysics
2012-2024
Vietnam National University Ho Chi Minh City
2020-2024
Ho Chi Minh City International University
2023
University of Alabama in Huntsville
1978-1979
This paper aims to assess the potential of Ocean Land Colour Instrument (OLCI) for retrieval chlorophyll-a (chl-a) over southern coastal waters Vietnam. For that purpose, four ocean color (OC) algorithms (OC4ME and three new OC version 7 OC4, OC5, OC6) were applied based on water-leaving reflectance obtained from two atmospheric correction processors (C2RCC DSF). To overcome high cloud coverage in area interest, full spatial data reconstruction was implemented using Data Interpolating...
This study aimed to document the seasonal cycle of steroid levels in plasma and ovary, including testosterone (T), estradiol-17β (E2) 17α, 20β-dihydroxy-4-pregnen-3-one (DHP) relation ovarian development wild populations female blue tang fish. The gonadosomatic index (GSI%) maintained high values from April July increased II IV stages dropped V stage. Levels plasma, ovary T E2 DHP were March July. Plasma low stage when most oocytes previtellogenic, reaching a peak during spawning, decreased...
Mariculture provides an increasing seafood supply to a growing population. It also brings unintended consequences for the environment, resources, and sustainable development. In attempt evaluate impacts of intensive mariculture lobster in cages, water quality sediment three South-Central regions Vietnam, Xuan Dai Bay, Van Phong Cam Ranh were monitored from April 2019 May 2020. each bay, two stations farming areas compared non-farming reference station. The result showed no significant...
Penetrative convection, thunderstorms, squall lines, etc., all generate atmospheric gravity waves which can be observed by a ground-based ionospheric Doppler sounder array. Sources of these determined from reverse ray tracing computations. Case studies associated with isolated tornadic storms on 13 January 1976 were summarized to establish the minimum data sampling time required for correct spectral analysis and It was concluded that reduced two three times wave period while still obtaining...
Based on survey data in the period of 2013 - 2015 and historical between 1996 1998, paper showed variation water quality parameters by time. The concentration total suspended sediment, chlorophyll-a, dissolved inorganic nitrogen, phosphorus ratio N:P changed significantly season. results assessing UNTRIX (integrated Chlorophyll-a, level saturated oxygen) indicated levels were increased from meso-eutrophication (average UNTRIX: 4.54 ± 0.76) to oligo-eutrophication 2.62 0.66 3.81 0.45).
This paper aims to identify the causes and sources of erosion deposition at small estuaries in southern central Vietnam under human intervention. The jetty built Tam Quan river mouth (Binh Dinh Province, Vietnam) serves as base for study. After its completion end 2009, hydrodynamic erosion-deposition processes region have been significantly altered. Inside estuary, waves are not influenced, but currents increased during ebb tide period decreased flood timeframe. During southwest monsoon,...
In the coastal countries of Southeast Asia, fish is a staple diet and certain species are food delicacies to local populations or commercially important individual communities. Although there have been several suspected cases ciguatera poisoning (CFP) in Asian countries, few confirmed by ciguatoxins identification, resulting limited information for correct diagnosis this food-borne disease. present study, ciguatoxin-1B (CTX-1B) red snapper (Lutjanus bohar) implicated CFP case Sabah,...
ENSO (El Niño-Southern Oscillation) phenomena have impacted on the hydrodynamic regime and environmental factors of tropical ocean in general. In case Vietnamese South-Central Waters, impacts only focused issues changing seasonal wind, seawater temperature anomalies, water masses as air-sea interaction. Based several data sets collecting period 2003-2017, new finding temperature, salinity was identified Waters. The highest 35.4 ‰. During El Nino event, increasing caused to move deeper be...
Despite the fact that Recommender Systems have been researched and developed for quite a while, they still hold some certain challenges, two of which are Cold Start Data Sparsity. Being introduced as savior, Cross-domain system (CDR) owns capacity to transfer knowledge across domains makes it become practical solution mentioned issues. In CDR approaches, family graph-based solutions is very effective, builds graphs illustrate relationship between users, items, other factors learn their...
Based on the collected and investigated data in period of 2011-2012 plan socio-economic development Thuy Trieu - Cam Ranh coastal areas, this paper estimates water's environmental carrying capacity to manage them for sustainable development. The results show that, volume organic matter (by COD) met potential waters. For dissolved inorganic nutrients, nitrate ammonia/ammonium reached available waters dry season, whereas phosphate was rainy season. Within areas 2015 2020, is predicted be...
Based on the collected and investigated data in period of 2011-2012 plan socio-economic development Thuy Trieu - Cam Ranh coastal areas, this paper estimates water's environmental carrying capacity to manage them for sustainable development. The results show that, volume organic matter (by COD) met potential waters. For dissolved inorganic nutrients, nitrate ammonia/ammonium reached available waters dry season, whereas phosphate was rainy season. Within areas 2015 2020, is predicted be...
Bacteria associated with invertebrates are considered as good sources for biologically active compounds. Sponge-derived bacteria were screened antimicrobial activities, the presence of cluster genes polyketide synthases (PKSs) and non-ribosomal peptide synthetases (NRPSs), through a colony picking method. Crude extracts broth cultures tested microbial inhibition. Eleven out 25 isolated strains showed inhibition at least one eight indicator microorganisms. Antimicrobial activities observed in...
Question-answer systems are now very popular and crucial to support human in automatically responding frequent questions many fields. However, these depend on learning methods training data. Therefore, it is necessary prepare such a good dataset, but not an easy job. An ontology-based domain knowledge base able help make nice question-answer pairs reason semantic information effectively. This study proposes novel chatbot model involving ontology generate efficient responses automatically....
Marine bacteria are being considered for research and application in medicine, industry, aquaculture. Bacterial strains derived from the edible algae Caulerpa lentillifera corals were screened production of indole-3-acetic acid (IAA) - a phytohormone auxin group. The ability phosphate solubilization antimicrobial activities IAA-producing also implemented this study. potent identified by 16sRNA sequencing. isolate RN06 produced high amount IAA, used inorganic phosphate, inhibited Bacillus...