This study presents the electromagnetic angular displacement sensor and its technical characteristics. The existing sensors have been thoroughly analyzed compared with other types of sensors. reason for low sensitivity has investigated some modification to made. magnetic circuits analyzed. A method is proposed expanding range measurements up 180 degrees increasing without compromising measureme...

This study proposes the use of marginal abatement cost curves to calculate environmental damages of agricultural systems in China's Loess Plateau. Total system costs and revenues, management characteristics and pollution attributes are imputed into a directional output distance function, which is then used to determine shadow prices and abatement cost curves for soil and nitrogen loss. Marginal...

purpose: one of the major problems in the agriculture field is the land use change that has been growing recently and disturbing the balance of agricultural products in long term. there are many factors that affect farmers' willingness to change the use of land. in this regard, the main objective of this study is to identify factors which affect the agricultural land use change in rural areas i...

Different insecticides are being used for household and agricultural pest control in the capital city of Iran, Tehran. An investigation was carried out in order to evaluate the susceptibility level of laboratory and field collected mosquito, Culex quinquefasciatusin to different insecticides. Field strain was collected from sewage system of the city. Adult females were subjected to the diagnost...

abstract protection policies in the agricultural sector is an inevitable necessity, its accomplish effects individuals welfare and economic sectors. protection policies account for a major economic strategy in agricultural sectors of developing and developed countries. applying ardl, the study investigates effects of protection policy in agricultural sector on total factor productivity of this ...

Synthesis and quantification of disciplinary knowledge at the whole system level, via the process models of agricultural systems, are critical to achieving improved and dynamic management and production systems that address the environmental concerns and global issues of the 21st century. Soil physicists have made significant contributions in this area in the past, and are uniquely capable of m...

esee 2015, chania, greececonference dates: july 4 – 7, 2017conference theme: transformative learning: new directions in agricultural extension and educationthe 23rd european seminar on extension (and) education (esee) will be held in the mediterraneanagronomic institute of chania, and hosted by the lab. of agricultural extension, rural systems &rural sociology, dept. of agricultural economics &...