Ashraf Dewan, Yasushi Yamaguchi
Ashraf Dewan, Yasushi Yamaguchi
This paper illustrates the result of land use/cover change in Dhaka Metropolitan of Bangladesh using topographic maps and multi-temporal remotely sensed data from 1960 to 2005. The Maximum likelihood supervised classification technique was used to extract information from satellite data, and post-cl...
Ashraf Dewan, Yasushi Yamaguchi, Md Ziaur Rahman
Mohammad Rezwanul Islam, Syeda Fahliza Begum, Yasushi Yamaguchi, Katsuro Ogawa
Every year the Ganges and Brahmaputra rivers in Bangladesh transport 316 and 721 million tonnes of sediment, respectively. These high loads of suspended sediment reflect the very high rate of denudation in their drainage basins. The average mechanical denudation rate for the Ganges and Brahmaputra b...
Mohammad Rezwanul Islam, Yasushi Yamaguchi, Katsuro Ogawa
Abstract Remote sensing was used to understand the seasonal and spatial variation of suspended sediment in the Ganges and Brahmaputra Rivers in Bangladesh for two different discharge periods. Suspended sediment concentration (SSC) in these rivers was estimated from the reflectance of Landsat TM band...
Ashraf Dewan, Yasushi Yamaguchi
This study is an example of identifying the relationship between land cover changes and river flows making use of remote sensing data and simultaneously analyzing the relevant hydro-meteorological information in Greater Dhaka of Bangladesh. Using the supervised classification technique and post clas...
Michio Hashimoto, Kentaro Matsuzaki, Koji Maruyama, Shahdat Hossain et al.
) seed oil (PO), rich in α-linolenic acid (ALA), can improve cognitive function in healthy elderly Japanese people. Here, supplements containing either PO alone or PO with nobiletin-rich air-dried immature ponkan powder were examined for their effects on cognitive function in 49 healthy elderly Japa...
Michio Hashimoto, Kentaro Matsuzaki, Koji Maruyama, Eri Sumiyoshi et al.
more effectively ameliorates age-related cognitive decline than PO alone. These findings may serve as a basis for the development of new supplements for brain health. Clinical Trial Registry, UMIN000040863.
Hemu Kharel Kafle, Soni Khaitu, Dipak Gyawali, Dibas Shrestha et al.
Every year, South Asian countries suffer from declining agricultural outputs due to climate extremes such as floods and droughts. Recurrent droughts have depressed rural economies and enhanced widespread hunger and human migration to South Asian cities (Miyan, 2015). Due to climatic changes, the reg...
Ashraf Dewan, Yasushi Yamaguchi
Flooding is a regular feature in Dhaka during the monsoon. Dhaka has witnessed many disastrous floods of which the 1987, 1988, 1998 and 2004 ones are notable in recent flood history. The objectives of this paper are, firstly, to estimate flooding in Dhaka using Landsat TM and RADARSAT Synthetic Aper...
Syeda Fahliza Begum, Mohammad Rezwanul Islam, Yasushi Yamaguchi, Katsuro Ogawa
Abstract A simple and straightforward technique based on remote sensing was applied for the estimation of surface emissivity and surface temperature at different dates in the northwestern part of Bangladesh for the summer and autumn period (March through October). Surface temperature was estimated f...