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Abstract: Located in southern Vietnam, the Southern plain is one of the largest in Asia. Within the coastal area, this study has indicated that there are two plains forming by different hydrodynamic mechanisms: the river dominated Mekong Delta plain and the tidal dominated plain of the Ca Mau peninsula. Studying lithofacies based on: (i) sedimen...

24 trang | Chia sẻ: thanhle95 | Ngày: 05/07/2021 | Lượt xem: 521 | Lượt tải: 0

Abstract: Land cover mapping by optical remote sensing has many obstacles including clouds. Clouds block solar radiation coming to earth surface and reflective radiance from the earth surface to remote optical sensors resulting. Therefore, clouds result no-signal areas in images that cannot be used for study of ground objects. In many cases, thi...

8 trang | Chia sẻ: thanhle95 | Ngày: 05/07/2021 | Lượt xem: 493 | Lượt tải: 0

Abstract: Cloud detection is a significant task in optical remote sensing to reconstruct the contaminated cloud area from multi-temporal satellite images. Besides, the rapid development of machine learning techniques, especially deep learning algorithms, can detect clouds over a large area in optical remote sensing data. In this study, the metho...

9 trang | Chia sẻ: thanhle95 | Ngày: 05/07/2021 | Lượt xem: 606 | Lượt tải: 0

Abstract: Landscape regionalization plays an important role in delineating the heterogeneous characteristics of territory, and provide the spatial fundamental data for natural resource planning and environmental protection activities. The integrating of the diversity indices (landscape metrics) is expressed the change of landscape structure by t...

11 trang | Chia sẻ: thanhle95 | Ngày: 05/07/2021 | Lượt xem: 447 | Lượt tải: 0

Abstract: In this study, we aimed to use ferrate as an all-in-one alternative for the removal of chlorine-consumed compositions such as organic, color, turbidity, iron, and manganese in river water for water supply purposes. Ferrate (FeO42-) was simultaneously employed as coagulant and oxidant for purification of Saigon River water in order to r...

7 trang | Chia sẻ: thanhle95 | Ngày: 05/07/2021 | Lượt xem: 533 | Lượt tải: 0

Abstract: RIP current is a strong, popular water flow at beaches in Vietnam as well as in the world, with the direction of flow from the shore to the sea. This is a dangerous flow, each year there are unfortunate accidents for swimmers. This study used the measured data source implemented by the Center for Environmental Fluid Dynamics in 2018 to...

14 trang | Chia sẻ: thanhle95 | Ngày: 05/07/2021 | Lượt xem: 505 | Lượt tải: 0

Tóm tắt. Biến đổi khí hậu gia tăng tần suất, cường độ hạn hán, ngập lụt, hoang mạc hóa. là một trong những nguyên nhân quan trọng gây biến động đất sản xuất nông nghiệp tại tỉnh Hà Tĩnh. Để phân tích ảnh hưởng của một số các yếu tố khí hậu và thiên tai đến biến động sử dụng đất nông nghiệp ở tỉnh Hà Tĩnh trong giai đoạn 2005 - 2015 chúng tôi đã ...

8 trang | Chia sẻ: thanhle95 | Ngày: 05/07/2021 | Lượt xem: 743 | Lượt tải: 0

Abstract: Tourism is one of the smokeless industries that has been developing rapidly, opening up many job opportunities as well as socio-economic development for many countries around the world. In Vietnam, the role of the tourism industry in the development of the country has been well recognized and has received early investment attention fro...

7 trang | Chia sẻ: thanhle95 | Ngày: 05/07/2021 | Lượt xem: 547 | Lượt tải: 0

Abstract: The world mathematicians given many method to adjust the free network, in which the confirmation that the first norm of the solution vectors must minimizing to be the standard for finding the solution in a multitude of solutions. This also conform with the weight transformation process in the deformation model to find the solution for ...

15 trang | Chia sẻ: thanhle95 | Ngày: 05/07/2021 | Lượt xem: 526 | Lượt tải: 0

Abstract: Late Miocene biostratigraphy of coaly sediments in the Southeastern Red River Delta are basically interpreted from the analyses of foraminifera, palynology with referencing analyses of petrographic thin section, grain-size and physicochemistry, from the samples of 3 boreholes. Late Miocene/Pliocene stratigraphical boundary is marked by...

16 trang | Chia sẻ: thanhle95 | Ngày: 05/07/2021 | Lượt xem: 486 | Lượt tải: 0