To address the problems of high damage rate, low seeding accuracy, and poor generally in process, a general-purpose device was designed this study based on principle mechanical pneumatic combined seeding. The air-blowing-type cleaning seed unloading laid conditions for precise flexible In addition, single-factor experiments were performed seeds (e.g., soybeans, corn, rape-seeds) with different ...

A key issue for the success of a smart grid is the capability to accommodate efficient smart metering. Following the trend towards timely monitoring of energy consumption and production via Internet related technologies and in-network metering platforms, we need to investigate performance-related aspects of smart metering and how they affect the overall operation. We present here our experience...

The article analyzes the structures of measuring channels electricity metering systems. It is shown that such a structure determined by types instruments used and scheme their connection, in particular, meters installed at points. Moreover, counters can have pulse or interface information output. path for includes circuit consisting current voltage transformers, an meter, communication lines, d...

In this study, the discrete element method was used to optimize bucket size for metering device in a garlic planter enhancing productivity of farming according size. Statistical information concerning actual shape cloves incorporated, and mechanical properties were determined using bulk density, sliding test, repose angle test fidelity simulation model. The optimal achieving target plant rate 9...

More and more metering schemes based on some special protocols or mechanisms are used to calculate the number of visits which a website receives in a certain time frame. Then, the amount of money that an advertiser pay to a website depends on this number of visits. Until now, many protocols were suggested for metering schemes in literature. However, the discussion mainly focused on the theory o...

In order to solve problems of lower seed-filling stability and wheat seed damage mechanical shooting seed-metering device, the filling structure device was optimized. The effects movement were obtained through analysing kinematics dynamics distributor. influence factors inner diameter distributor, rotational speed distributor inclination angle window. discrete element software (DEM) used simula...

The planter plate is the most important component of pneumatic hill-drop seed metering system for rapeseed. structural parameters are primary determinants rape planting. key and operational parameters, such as layout suction hole, its diameter, shape, were determined through theoretical analysis. Fluent used to simulate flow field various types holes, effect hole shape on change in chamber shel...

Critics of current tying doctrine argue that metering ties can increase consumer welfare and total welfare without increasing output and that they generally increase both welfare measures. Contrary to those claims, we prove that metering ties always lower both consumer welfare and total welfare unless they increase capital good output. We further show that under market conditions we argue are r...

Sesame seeds are flat and oval, with poor mobility, easily blocking a seed tube reducing seeding quality. An air-assisted seed-guiding device was designed for hill-seeding centralized seed-metering sesame. The core of the is distribution manifold that could restrict trajectory make move in same direction as airflow. Six-factor three-level orthogonal tests were carried out using CFD–DEM coupling...