In order to optimize the parameters of mechanism, reduce pressure loss and improve efficiency pneumatic utilization, principles types in different areas were defined, key parameters, including diameter horizontal air pipe, angle negative aperture, which affect loss, analyzed. addition, an orthogonal simulation experiment was carried out using Fluent software, determined best parameter combinati...

A grassland carbon sink is a planting activity with special requirements to implement measurement and monitoring of the growth process forage grasses on land where baseline has been determined, main purpose increasing sink. The development extremely beneficial achieve two important deployments peaking neutrality. Grasslands one-fourth area in south are limited by rugged topography karst landsca...

The article notes that the improvement of operating tools sowing machines is a solution to one many tasks increasing crop yields. It also noted two-disc coulter and its inherent advantages disadvantages have been widely used on machines, final operation considered most important for seeds, since it creates conditions their germination further development.
 Significant factors affecting dev...