Detailed analysis of continuous time-series data from regions undergoing rapid urbanization can accurately reveal spatial variations on short time scales. This study used the city of Changchun in Jilin Province, China, as a case study to analyze total and annual changes in area—especially decreases in rural settlement area—as well as regional differences in these changes and driving forces of r...

Convenient and simple procedures for the synthesis of functionalized Quinoxaline derivatives were developed via one-pot four-component reaction of o-aminoanilin, acetylenic ester, and malonyl dichloride in the presence of K2 CO3 as effective base catalyst. These compounds widely are used in various industries like paint, pharmaceutical and medicine. Quinoxaline derivatives are also part of anti...

Detecting informal settlements might be one of the most challenging tasks within urban remote sensing. This phenomenon occurs mostly in developing countries. In order to carry out the urban planning and development tasks necessary to improve living conditions for the poorest world-wide, an adequate spatial data basis is needed (see Mason, O. S. & Fraser, C. S., 1998). This can only be obtained ...