Central Vietnam's water

The shallow sea (0÷60 m of water depth) from Phu Loc (Thua Thien Hue)to Hoi An (Quang Nam) belongs to the internal shelf in Central Vietnam. This is quite a good geological structure for the land-sea interaction study, especially during the Holocene. Therefore, it is necessary to study the geological history of the area during the Holocene period.

7p viplato 02-01-2024 6 3   Download

In this study, the free chlorine residual and microbiological parameters (total coliforms and E.coli) in supply water of centralized supply water companies in provinces/cities in Vietnam will be investigated.

8p vijeff 30-11-2023 5 2   Download

Bark from ironwood (chuồn in Vietnamese) is used in the production of traditional sugar palm wine of ethnic minorities in Central Vietnam. The objectives of this study were to investigate the antimicrobial properties of water and alcohol extracts of this bark and to determine the major active chemical components in these extracts.

5p viisac 23-09-2023 3 1   Download

The present study analysized DVM based on species distribution in the water column at each different times of day at two stations on the central Vietnam shelf. One station was on the shelf (LT2) and another was on the shelf slope (FK002).

11p vicaptainmarvel 21-04-2023 3 2   Download

Upwelling is an oceanographic phenomenon that involves the physical process and contributes to changes in chemistry, biology, and natural resources. So, systematically, it is the particular ecosystems of whole marine regions with the upwelling. The strong upwelling waters in South Central Regions of Vietnam have uncertain features of the East Vietnam Sea (Bien Dong) and special characteristics of a coastal upwelling area, recorded in international scientific papers in the twentieth century.

20p vipagani 24-10-2022 9 2   Download

Nghi Son is an economic zone oriented to developing heavy industry and petrochemicals and has potential to become the most substantial economic zone in the North Central region. The zone is also one of the potential waste sources polluting Thanh Hoa coastal waters. Numeric modeling using Delft3D software package with different scenarios: Current status scenario, controlled discharge scenario, and incident scenario was developed to simulate states of some pollutants of organics and nutrients from the zone to Thanh Hoa coastal waters in different periods.

14p vielonmusk 21-01-2022 21 0   Download

This paper presents the development of hydrodynamic simulation models (waves, currents) for the Vietnam East Sea and nestingto coastal area (applied in the coastal area of Phu Yen province). The COAWST modeling system has been used. This is an open source system which supports optimal parallel calculation and allows solving large-scale simulation problems.

9p meyerowitz 25-12-2021 13 0   Download

This study uses 2D seismic lines located in the central Song Hong Basin, covering an area of c. 3900 m2, in the water depth of c. 100 m. Focused fluid flows are developed intensively and can be classified into two types: blow - out pipe and seepage pipe.

9p cothumenhmong12 08-07-2021 6 0   Download

Flooding caused by historically high flows, especially in Tra Khuc-Ve River basin in the Mid-Central region in Vietnam in November 2013, which caused widespread damage. The purpose of this paper was to establish the inundation maps in the downstream part of Tra Khuc-Ve rivers by using the coupling of the hydrological and hydraulic models (MIKE SHE/MIKE 11 and MIKE 11 GIS). Calibration and validation of the hydrological model were in good agreement in terms of the vibration amplitude, absolute value, and phases.

12p nguyentanloc09 17-10-2020 23 2   Download

In this paper, three solar water heating systems with a heat pump are designed for resorts located at three famous tourist destinations in Vietnam: Phu Quoc island and the towns of Bao Loc, and Sa Pa. These places represent the Southern, Central, and Northern regions of Vietnam, respectively. Ecotect and Grasshopper software applications are employed with the latest weather, heat, and radiation data and was obtained from climate.onebuilding.org. Data analysis is based on Ecotect software and the computational design is done in Grasshopper software.

9p kethamoi7 15-08-2020 12 1   Download

This study investigated the current situation of groundwater use for domestic purposes and consumption. The research team collected data from several centralized water supply stations operated by the CERWASS. The team also conducted surveys and took water samples from 94 households and water supply stations. The evaluation of groundwater quality and its suitability for domestic use was also conducted. The results showed that in terms of raw water quality, most of the samples had low iron (Fe) concentration and pH value.

7p kethamoi7 15-08-2020 27 3   Download

The dissertation completes the theoretical and practical basis to propose the completion of policies and solutions to attract the participation of the private sector in construction investment, management and operation of concentrated clean water works in agriculture. Vietnamese village.

0p cothumenhmong6 17-07-2020 18 0   Download

To Lich River is well-known as a main drainage river and plays a vital role to the landscape distribution of Ha Noi city, which is currently polluted due to improperly untreated wastewater flow. Thanks to QUAL2K model, the variation of the river water quality has been forecasted by 4 particular scenarios. In the first scenario, the whole generated wastewater along To Lich River is not totally collected and treated. Scenario 2 is similar to scenario 1 except that To Lich River receives an addition of diluted water of 5 m 3 /s from Red River.

9p angicungduoc5 13-06-2020 25 2   Download

Seaweed and seagrass form marine submerged aquatic vegetation (SAV), which plays an essential role in economic development and ecological protection in coastal areas. In this study, PlanetScope (PS )imaging data was combined with in situ samplings to demonstrate their ability to map SAV distribution in An Chan commune, Tuy An district, Phu Yen province, Central Vietnam.

16p 12120609 22-03-2020 19 2   Download

Agricultural drought is a natural hazard that characterized by shortage of water supply. In recent decades, the scientists usually deal with phrases Agricultural drought monitoring as an essential component of drought risk management and using remote sensing (RS) and Geography Information System (GIS) based on drought indicators, proposed and widely used in the field of drought monitoring. This paper presents some agricultural drought indicators to generate a suite of drought levels at monthly, seasonal, and annual time scales for the North Central regions, Vietnam.

10p chauchaungayxua2 04-01-2020 20 1   Download

Ensuring adequate and safe water supply is a top priority in human life, especially cities or residential areas. Accessibility and safety in water supply services requires good operation in the components of domestic water supply systems including water sources, water treatment plants, and distribution network systems. This means that the cooperation and coordination of stakeholders (SH) should be good to help maintain the stable system. Therefore, it is necessary to analyse stakeholder involvement, indicating their responsibilities and roles in maintaining the system.

10p tandlanh 30-12-2019 31 1   Download

In addition to surface water, groundwater is an essential source of water for agriculture, industry, and living in Ha Tinh province (central Vietnam). However, overexploitation and unreasonable use of groundwater has put this resource at risk of endangerment and pollution. In the coastal areas especially, the impact of climate change and the rise in sea-level has increased the risk of salt-water intrusion into groundwater.

7p caygaocaolon1 13-11-2019 41 2   Download

Nowadays, heavy metal pollution is an urgent problem in the world including Vietnam. An analytical approach is very important to identify, assess and forecast environmental risks from toxic components, in which ecotoxicology is considered to be the optimal tool. We conducted a study on M. micrura in order to contribute the creation of a biological basis for the use of zooplankton as an early warning of the risk of water pollution. The results showed that M. micrura was isolated from 29/3 Park Lake, Da Nang City, central Vietnam. The acute toxicity test of potassium dichromate on M.

7p gaunguyen6789 22-10-2019 44 3   Download

The paper presents some results of the first experiment carried out by using a combination of geological, geochemical, geophysical methods, and temperature measurements in shallow drilling hole (depth 250 m) were applied for investigation in the Bang hot water spring area, Quang Binh province, during the period from 2012 to 2015.

14p meolep1 28-11-2018 21 1   Download

This paper specifies that research, analysis and estimate on marine environmental and biological conditions are very important for fishing ground forecast in offshore waters. The multi-variate regression equations among Catch Per Unit Efforts (CPUE), temperature structures and primary production have been established and used for monthly fishing ground forecast for purse-seine and drift-gillnet fisheries in the offshore waters of central Vietnam. The experiment forecast result in May, June and

7p dem_thanh 22-12-2012 42 2   Download