One of the most important factors affecting the precision of the performance of a GPS receiver is the relative positioning of satellites to each other. Therefor
October 26,2017,Wuhan,China----Co-organized by China Agricultural Machinery Distribution Association(CAMDA),China Agricultural Mechanization Association(CAMA)an
In this work, we have produced biogas by co-digestion of cow dung and slaughterhouse wastewater under different climate temperatures in two countries: N’Djamen
India has the second largest amount of arable land of any country after the U.S.Although the total land area of the country is only slightly more than one third
With the development of mobile devices and digitalization of information, the GIS system will be more popular than before. For the variable of mobile devices an