This paper introduces the basics of energy harvesters and demonstrates two specific vibratory-type energy harvesters developed at the University of Hyogo. The fabrication and evaluation results of the vibratory-type energy harvesters, which employ electrostatic and electromagnetic mechanisms, are described. The aim of developing these devices is to realize a power source for an autonomous human...

Grain loss in the harvesting process of combine harvesters not only causes economic losses to farmers but also affects soil environment because lost grain covering soil, influencing crop growth next season. sieve loss-monitoring sensors represent an important accessory harvesters, as they can provide current levels for operator adopt a rational action time serve performance signal control syste...

In Vienna, consultants, organic farmers and green-minded consumers have developed a new concept of urban organic farming, called Selbsternte (`self-harvest'). Organic farmers prepare a plot of arable land (the Selbsternte plot) and sow or plant rows composed of 18±23 plant species. In mid-May the plots are divided into subplots that contain 2±6 m of every sown species and are rented to so-calle...

ITQ regulation relies on a decentralized market mechanism and a single price to allocate access to a stock of fish. The resulting allocation will not be fully efficient if the stock being allocated is heterogeneous or if there are potential gains from centralized coordination of harvesting effort. If stocks are heterogeneous in their density, location, or unit value during the season, harvester...

Crops are harvested by performing a series of operations with harvesting vehicles in the field. The harvest operation is performed with combines (harvesters). Supporting logistical activities of transferring and transporting harvest (grain) from the field to the farm are carried out with the help of tractors. This research focuses on detailed logistics planning of various infield harvest operat...

Traditional and fuzzy control correspond to two different cases: traditional control is applicable when we have a precise knowledge of the controlled system, and possible uncertainties are described in probabilistic terms (as a noise). Fuzzy control (see, e.g., [S85, B91, L90]) is applicable in the situation when uncertainty is described in terms of natural language like “small”, “to some exten...

A series of new dispiro[fluorene-9',6,9'',12-indeno[1,2b]fluorenes] (DSF-IFs) has been synthesised. These new building blocks for blue-light-emitting devices and electroactive polymers combine indenofluorene (IF) and spirobifluorene (SBF) properties. We report here our synthetic investigations towards these new structures and their thermal, structural, photophysical and electrochemical properti...

Agricultural injuries involving the hand and upper extremity are common, debilitating injuries that reflect the significant occupational hazards associated with the agricultural industry. Farm injuries occur in all age groups and are associated with significant resource utilization and treatment costs. Most of these injuries are associated with machinery, including tractors, power take-off devi...

Improvement of the performance renewable energy harvesters is a crucial and complicated task. Among currently utilized harvesters, parabolic solar collectors are some most promising widely used apparatuses. However, researchers still facing issues regarding optimization PTC performance, including enhancement heat flux absorption by absorber tubes. proposed methods to overcome this drawback, imp...

The article indicates the main problems connected with technology of harvesting grain and leguminous crops (wheat, barley, soybeans, peas) other crops, as machine operator often encounters a number technological constructive malfunctions that prevent proper threshing those or directing process to significant expenditure time labor, at same crop losses. An analysis structures occur during grain,...