the existing studies of threshing process of combine harvesters adopt the assumption of constant mass, which is contradictory to the phenomenon of separation of grains and short stalks in actual threshing process. therefore, the characteristics of threshing and separation are not accurately described. aiming at this problem, this study established the tangential-longitudinal threshing and separ...

The scope of this study was to identify the presence of health problems and their significance for tobacco harvesters, State representatives, civil society and the tobacco industry, and also understand their coping strategies. An ethnographic study with 35 semi-structured interviews answered by harvesters' families and key informants was carried out in a rural community in the state of Rio Gran...

This work presents a high yield wafer scale fabrication of MEMS-based unimorph silicon/PZT thick film vibrational energy harvesters aimed towards vibration sources with peak frequencies in the range of a few hundred Hz. By combining KOH etching with mechanical front side protection, SOI wafer to accurately define the thickness of the silicon part of the harvester and a silicon compatible PZT th...

The problem of updating the fleet agricultural machinery and introducing technologies into production is acute. In current foreign policy economic conditions, issue ensuring food security has become extremely important, in connection with which there an urgent need to increase efficiency a short time. such situation, most effective way intensify production, this process, equipment play primary ...

Cut-to-Iength is not the harvesting system of choice in the southeastern USA although it is perceived to be more environmentally friendly and to have the ability to recover more value from cut stems. In this paper we address the value recovery aspect of harvesters by comparing the optimal recoverable value, as calculated by optimization software, to the actual value recovered by the harvesters ...

Purpose of the study is to substantiate information-dynamic management model service restoration grain harvesters. The practical result will be formation Smart-technology engineering ensure efficiency combine Research methods. methodological basis work generalization and analysis known scientific results on information dynamic models recovery complex technical systems, in particular harvesters,...

To reduce human drudgery and the risk of labor shortages in Asian developing countries, appropriate introduction agricultural machinery, especially combine harvesters, is an urgent task. Custom hiring services (CHSs) are expected to contribute making paddy harvesters prevalent countries; however, economic performance has been rarely quantified. The study was carried out precisely evaluate machi...