Co-movement between futures prices can arise when commodities are *** Johansen’s co-integration procedure,we fail to find a significant long-run link between soybean and corn prices o
Co-movement between futures prices can arise when commodities are *** Johansen’s co-integration procedure,we fail to find a significant long-run link between soybean and corn prices o
The disaster that low temperature and spare sunlight occurred in North China is a major weather hazards to the sunlight greenhouse vegetable *** establishment of disaster warning system of
The disaster that low temperature and spare sunlight occurred in North China is a major weather hazards to the sunlight greenhouse vegetable *** establishment of disaster warning system of
Forecasting pests emergence levels plays a significant role in regional crop planting and *** accuracy,which is derived from the accuracy of the forecasting approach used,will determine
Forecasting pests emergence levels plays a significant role in regional crop planting and *** accuracy,which is derived from the accuracy of the forecasting approach used,will determine
China is a country seriously suffering from the lack of water resource, especially the north of China(a dense area) where there are more agricultural production than other places in ***
China is a country seriously suffering from the lack of water resource, especially the north of China(a dense area) where there are more agricultural production than other places in ***
Because of the unreliability judgment of paddy rice’s nitrogen deficiency depending on the traditional artificial naked eye,in this article,the way of the paddy rice’s nitrogen deficiency examinati
Because of the unreliability judgment of paddy rice’s nitrogen deficiency depending on the traditional artificial naked eye,in this article,the way of the paddy rice’s nitrogen deficiency examinati
The particle swarm,which optimizes neural networks,has overcome its disadvantage of slow convergent speed and shortcoming of local optimum. The parameter that the particle swarm optimization relate
The particle swarm,which optimizes neural networks,has overcome its disadvantage of slow convergent speed and shortcoming of local optimum. The parameter that the particle swarm optimization relate
Previous researches have shown that the digital image color intensity could reflect the crops N status,but there is little information about the comparision of spectrum reflectance in the visible b
Previous researches have shown that the digital image color intensity could reflect the crops N status,but there is little information about the comparision of spectrum reflectance in the visible b
By applying analytic hierarchy process to extend the D&M IS success model, this paper builds a user preference hierarchical model for online consumers to select the most preferred website;this model is mainly cons...
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Bayesian network is a powerful tool to represent and deal with uncertain *** paper mainly introduces some technologies and methods of modeling Bayesian network,which are used in the buil
Bayesian network is a powerful tool to represent and deal with uncertain *** paper mainly introduces some technologies and methods of modeling Bayesian network,which are used in the buil
In order to detect the growth status and predict the yield of the crop,crop growth monitor measuring nitrogen content in the plant is developed based on optical *** monitor measures the s
In order to detect the growth status and predict the yield of the crop,crop growth monitor measuring nitrogen content in the plant is developed based on optical *** monitor measures the s
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