نتایج جستجو برای: combine loss
تعداد نتایج: 501913 فیلتر نتایج به سال:
Grain loss sensor is an important monitoring module to realize the intelligent automatic control in combine harvester. Polyvinylidene fluoride piezoelectricity film has been one of the most widely used macromolecule materials at present. Based on its piezoelectric effect, in this paper, a grain loss monitoring system for combine harvester by using the PVDF sensor was designed. The system is com...
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...
Brasica napus L. is one of the most important crops in the world, but every year during mechanized harvesting with conventional combines large quantities of the seeds fall to the ground and thus result in a decrease in yield. Therefore, designing and manufacturing a head specific for harvesting this crop is a high priority. In this study, the head of a combine for harvesting fine-grained produc...
Brasica napus L. is one of the most important crops in the world, but every year during mechanized harvesting with conventional combines large quantities of the seeds fall to the ground and thus result in a decrease in yield. Therefore, designing and manufacturing a head specific for harvesting this crop is a high priority. In this study, the head of a combine for harvesting fine-grained produc...
Background and aims: High levels of noise that most operators of agricultural machinery are exposed to for a long time contribute to cause chronic fatigue and irreversible hearing loss. For this reason, occupational health and safety issues related to such machinary should be considered as a key criterion in the design of agricultural machinery and as a critical factor in the acceptance and sal...
A great deal of work has been carried out in the area of information modelling to support the sharing of information across participants in a construction project. Efforts in this area include projects such as ATLAS (Bohms et al., 1994) (for large scale engineering), COMBINE (Dubois et al., 1995) (for HVAC and building design), RATAS (Björk, 1994) and ICON (Aouad et al., 1995) (for building des...
Cleaning loss is an important parameter to judge the performance of a corn combine harvester. At present, there exists phenomenon that cleaning rate detection devices have long signal processing time and low recognition accuracy. To solve this problem, based on principle impacting piezoelectric effect, signals kernels impurities are analyzed by means frequency spectrum method obtain characteris...
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