The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
To improve the degradation efficiency of TiO2 for low concentrations of volatile organic compounds, TiO2 loaded on activated carbon fibres (ACF) was prepared by an impregnation–hydrothermal method. The crystal structure, surface area, dispersion, optical absorption properties, and chemical composition of the TiO2/ACF composite materials were characterised by X-ray diffraction, Brunauer−Emmett−Teller...
With the rapid evolvement of mobile and cloud technology, the cost of collecting and studying human behavior data is largely reduced. Geo-location data is probably the most important and interesting data that vendors and researchers care about when their designed apps are being used. If an organization maintains several apps, and it wants to monitor the geo-location trend of each app's usage, it will...
The extraction of vegetation cover information has significance for watershed resource and environmental quality assessment, management and development, and sustainable development. This paper extracts the vegetation fraction using the 2009 TM image data of the Yiluo River Basin, based on the dimidiate pixel model. Vegetation fraction is divided into five categories from low to high in order to study...
Traditional R-Tree organization methods usually choose a bottom-up method, while a small number of top-down algorithms cannot give an optimal performance due to the limitations of the division mode. This paper proposed a new R-tree organization method based on top-down recursive clustering against the deficiencies of the traditional bottom-up divided structure node. This method divided our spatial...
This paper firstly studies the stratification and organization of the urban land prices and intensive use data, in order to design data model based on Geodatabase for the city land use and intensive use; Secondly, designs a four in one database structure for basic information database, analysis and evaluation databases, information release databases and meta-databases; finally, studies the database...
Land surface emissivity is one of key parameters in land surface temperature retrieval using remote sensing data. However, most methods are too complex to practical application. It is essential to create an easy method for retrieving land surface emissivity. The land surface emissivity retrieval mainly lies on land surface substance structure and wave band of sensors. This paper divides land cover...
Due to the influence of weather, cloud cover is one of the common noises. For optical remote sensing images, it is necessary to find an effective method to reduce or eliminate the impact of clouds, which is not only the basis of remote sensing image interpretation accuracy, but also an important way to enhance the effectiveness and availability of remote sensing data. This paper firstly detect the...
Excessive growth of algae can be considered as a symptom of eutrophication, which is caused by overloading nutrients and results in significant daily dissolved oxygen variation and even an unbalanced ecosystem. It is very important to monitor the surface water quality and track their changes. The objective of this study is to monitor the surface water quality of Miyun reservoir using remote sensing...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.