Quang Ninh province

The content of unsaturated fatty acids did differ between males and females of the two species studied. However, these differences are few and can be explained by the timing of their breeding seasons. The fatty acid composition of the fats from both investigated octopus species permits their use as food with nutritional value, and the production of bioactive additives.

8p dianmotminh02 03-05-2024 2 1   Download

Resistance to pathogenic bacteria may lead to serious health problems. Scientists found that discovering novel antimicrobial compounds is possible by exploring rarely investigated environments. Therefore, this work focused on isolating and identifying some fungal strains collected from the Co To sea. We tested whether such strains can produce compounds with vital activities, including antibacterial and antifungal. The antimicrobial activity of the marine fungi crude extracts was performed by the Bioassay method in a 96-well tray.

10p dianmotminh02 03-05-2024 3 1   Download

Estuary sediments contain toxic heavy metals which can pollute coastal wetlands. Ba Che river estuary is a coastal wetland with an area of 2,844 ha, which is affected by wastes in Ba Che river water and aquacultures. In this study, the accumulation of heavy metals in the Ba Che river estuary was assessed based on the enrichment factor (EF), the geo-accumulation index (Igeo), and the ecological risk index (RI).

9p dianmotminh02 03-05-2024 6 1   Download

The distribution network model is one of the sophisticated strategies being used in research to assess the state of household solid waste (HSW) management and calculate the quantity of greenhouse gas emissions from landfills in Nghia Ninh and Bao Ninh communes. Traditional and modern techniques are also being used in this study.

12p vijaychest 24-04-2024 4 2   Download

In study "Impact of urbanization on seawater quality in Quang Ninh province" the authors use indicators to assess the level of water pollution, such as chemical and microbial pollution and measure the impact of urban factors, such as population growth, wastewater discharge and water consumption. In the survey results of seawater quality in two seasons, the rainy season and the dry season, there is a difference in some specific hydrological indicators, such as Coliform exceeding the allowable threshold in the dry season and iron and ammonium content tending to increase.

11p tukhauquantuong1011 22-04-2024 4 2   Download

The paper "Research the application of terrestrial laser scanning technology for mining management (A case study at Khe Cham mine site, Quang Ninh province)" presents the application of Terrestrial Laser Scanning technology and takes a case study at a mining pit of the Khe Cham coal mine for building digital spatial data of the mining tunnel system, transportation, ventilation, calculation of excavation volume and mining output over time in mining pit of Khe Cham coal mine, cycle 0 is 4070.19 m3 , cycle 1 is 13668.

9p tukhauquantuong1011 22-04-2024 5 2   Download

The research "Detection of land surface temperature change in coal mining area using remote sensing and GIS techniques - A case study in Quang Ninh province, Vietnam" explores Land Surface Temperature (LST), which represents the energy exchange between the land surface and the atmosphere, as well as with the biosphere. Variations in surface temperature can lead to the formation of heat islands characterized by higher temperatures compared to surrounding areas.

9p tukhauquantuong1011 22-04-2024 4 2   Download

International conference GIS-Ideas 2023: Geospatial integrated technologies for natural hazards and environmental problems is a collection of articles about: Determination of the optimal density contrast in the seafloor depth inversion from gravity anomalies using the Gravity-Geologic method on the central East Sea; Impact of urbanization on seawater quality in Quang Ninh province; Forecast of submarine landslides related to the reactive probability of the fault system in the Southeast Vietnam continental shelf and adjacent areas; Applying machine learning algorithms to classify forest cove...

442p tukhauquantuong1011 22-04-2024 4 2   Download

This paper surveys the Gymnosperm species in Yen Tu National Forest, Quang Ninh province. A total of 15 Gymnosperm species were found in Yen Tu National Forest belonging to the 5 families Podocarpaceae, Cupressaceae, Cycadaceae, Pinaceae and Gnetaceae. Gymnosperm species in Yen Tu National Forest have a high conservation value with all 15 species listed in IUCN (2015), 02 species in Viet Nam red data book (2007) and 03 species are listed in Decree 32/2006 of the Vietnamese government.

6p vilarry 01-04-2024 2 1   Download

The aim of this paper was to quantify spatialtemporal dynamics of mangrove forests Quang Yent town, Quang Ninh province from 2017 to 2019 using Sentinel 2A imageries. It then estimated above-ground mangrove biomass and carbon stocks, and their changes. These findings were used to inform coastal management planning and policy development, particularly related to sustainable management of mangrove forests and likelihood improvements in the face of a changing climate in Vietnam.

11p vilarry 01-04-2024 7 1   Download

Heavy metals have big impacts on environmental quality and ecological risk. In this research, the Igeo accumulation index and ecological risk index (ERI) were used to assess the heavy metal pollution and ecological risk in the sediment of Cua Luc Bay, Quang Ninh Province.

9p viellison 28-03-2024 2 1   Download

Giáo trình được biên soạn dựa trên một số tài liệu tiếng Anh chuyên ngành dành cho du lịch của các tác giả trong và ngoài nước theo hướng chọn lựa những nội dung quan trọng và cần thiết đáp ứng được các yêu cầu đặt ra trong chương trình đào tạo của nhà trường và nhu cầu sử dụng tiếng Anh sau khi ra trường của học sinh, sinh viên theo học chuyên ngành Quản lý và kinh doanh du lịch. Mời các bạn cùng tham khảo!

90p boghoado08 05-02-2024 10 2   Download

The research results show that Quảng Ninh province residents’ livelihood is oyster farming, clams, fish, and nearshore fishing. Quảng Nam province residents’ livelihood combines farming, aquaculture, nearshore and offshore fishing. The livelihood of Cà Mau province residents with forest-shrimpcrab is the most prominent feature. Livelihood diversity is the trend of choice for many households today.

17p vibego 02-02-2024 4 1   Download

This study aimed to quantify the extent of mangrove cover along the coast of Quang Yen town, Quang Ninh province using Sentinel-1Aderived polarization thresholds, then developed the models of mangrove AGB and AGC based on the Sentinel-1A and field-derived data for Quang Yen.

11p vikissinger 21-12-2023 3 1   Download

Wild mushrooms are extensively gathered by rural communities throughout the uplands of northern Vietnam and nearby countries for food and medicine. These non-wood forest products are important for the livelihood of numerous rural communities. This study was undertaken to establish the identity of the edible Russula mushroom being collected for food in Cao Bang, Bac Giang and Quang Ninh provinces.

10p vispacex 16-11-2023 6 2   Download

Mangrove forests, typically found along tropical and subtropical coastlines, have a crucial role in preventing coastal erosion, mitigating the effects of wave actions, and safeguarding coastal habitats. This study utilized PlanetScope mangrove forests and a Combined Mangrove Recognition Index (CMRI), which was suitable for detecting mangrove cover along the coast of Tien Yen district with an overall accuracy of over 93.0% and a Kappa coefficient greater than 0.90 for the selected years.

13p vispacex 16-11-2023 8 2   Download

This study focused on mangrove cover mapping by using vegetation indices in Tien Yen district. Mangrove ecosystems play a vital role in many coastal regions, protecting against erosion and storm surges, providing nursery habitats of aquatic organisms, and offering livelihoods to local communities.

12p vispacex 16-11-2023 4 2   Download

Being likened to the image of “Vietnam in miniature” with full of unlimited and limited resources, Quang Ninh - the leading land in the Northeast region of the country always carries its own unique values; to be a place with rich and unique natural resources; where the outstanding global values of heritage - world natural wonder Ha Long Bay are preserved.

7p visharma 20-10-2023 8 5   Download

This study developed an automated depth mapping methodology based on the surface reflection datasets of Landsat 8 and Sentinel-2 satellite imagery in Google Earth Engine. The study was conducted in the area of Co To island, Co To district, Quang Ninh province.

10p viengels 25-08-2023 5 3   Download

The paper applied the data from an in-depth interview with 165 enterprises in Quang Ninh, Lao Cai and Cao Bang provinces to analyze and evaluate the behavior of investors when deciding to invest in the Northern border provinces of Vietnam. This article evaluated and analyzed the behavior of investors when deciding to invest in four aspects: how to find information on investment location; analysis of investment location; decision process to select the investment location and process of investment deployment.

9p tethientran 27-07-2023 9 6   Download