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Urban bare land classification using NDBai index based on combination of sentinel 2 MSI and landsat 8 multiresolution imagesAbstract: The classification of urban land cover/land use is a difficult task due to the complexity in the structure of the urban surface. This paper presents the method of combining of Sentinel 2 MSI and Landsat 8 multi-resolution satellite image data for urban bare land classification based on NDBaI index. Two images of Sentinel 2 and Landsat ...
11 trang | Chia sẻ: thanhle95 | Ngày: 05/07/2021 | Lượt xem: 593 | Lượt tải: 0
Extend cost benefit analysis of bauxite mining and processing in the central highlands of VietnamAbstract: The study focuses on assessing the effectiveness of bauxite mining and processing in the Central Highlands through the example of Tan Rai (Lam Dong) and Nhan Co (Dak Nong) bauxitealumina complexes by the method of extended cost benefit analysis. External costs have been localized to be taken into account, including opportunity costs, en...
10 trang | Chia sẻ: thanhle95 | Ngày: 05/07/2021 | Lượt xem: 627 | Lượt tải: 0
Capillary characteristics and applicability of coal bottom ash as an anti-capillary material for coastal constructionsAbstracts: Utilization of Coal bottom ash (CBA) as well as finding the solutions to prevent saline intrusion, meeting the needs of coastal infrastructure development have been considered by the authors of the article for a long time. In this study, the authors focused on analyzing capillary characteristics in order to find a suitable group of CB...
11 trang | Chia sẻ: thanhle95 | Ngày: 05/07/2021 | Lượt xem: 536 | Lượt tải: 0
Self-Cleaning ability of pollutants containing nitrogen and phosphorus transformed into NH4+, NO2-, NO3-, PO43-, of SonLa hydropower reservoirAbstract: The waste source containing nitrogen (N) and organic phosphorus (P) into the hydropower reservoir will be transformed into pollutants NH4+, NO2-, NO3-, PO43-. Son La hydropower reservoir has an area of 225 km2 of water surface and 10.850 km2 of water supply basin for electricity generation, Son La hydroelectricity plant and dam, which ...
13 trang | Chia sẻ: thanhle95 | Ngày: 05/07/2021 | Lượt xem: 595 | Lượt tải: 0
Late pleistocene - Holocene sedimentary evolution of Nam Bo plain and correlation from the Ca Mau peninsula to the Mekong river delta in midle-late holoceneAbstract: 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: 528 | Lượt tải: 0
Development of landsat cloud free image data for classification of land cover-case study in Dak Lak provinceAbstract: 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: 499 | Lượt tải: 0
Application of deep learning algorithm to build an automated cloud segmentation model based on Open Data Cube frameworkAbstract: 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: 615 | Lượt tải: 0
Intergrating the diversity characteristics to design a quantitative landscape regionalization framework: Case study of Van Chan district, Yen Bai provinceAbstract: 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: 448 | Lượt tải: 0
Application of ferrate as coagulant and oxidant alternative for purifying Saigon river waterAbstract: 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: 538 | Lượt tải: 0
Assessing the possibility of appearing RIP Current at Quy Nhon beach, Binh Dinh provinceAbstract: 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: 511 | Lượt tải: 0
