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145.314  Articles
1 of 14.532 pages  |  10  records  |  more records»
In recent years, the educational issues have attracted more and more researchers’ and teachers’ attention. On the other hand, the development of data mining technology, provides a new method to extract the useful information from the complex educational d... see more

The Asian citrus psyllid, Diaphorina citri Kuwayama (Hemiptera: Liviidae), is the vector of huanglongbing, a destructive citrus disease worldwide. Horticultural mineral oils (HMOs) are commonly used for management of D. citri. In the past, repellency of H... see more

Sampled from the Gangxi oil field in the Huanghua depression, Bohaiwan Basin, the crude oil He and Ar isotopiccompositions and their geochemical significance were investigated. The result shows that i) the 3He/4Hevalues of the six oil samples free from ai... see more

Copper-mine tailings are the residual products after the extraction of precious copper metal from copper ores, and their storage can create numerous environmental problems. Many researchers have used copper-mine tailings for the preparation of geopolymers... see more

The Asiatic citrus psyllid, Diaphorina citri Kuwayama (Hemiptera: Liviidae), is the main vector of the Asiatic form of huanglongbing (HLB), the putative cause of which is a phloem-limited bacterium ‘Candidatus Liberibacter asiaticus’ (‘CLas’) (a-Proteobac... see more

The red imported fire ant, Solenopsis invicta Buren (Hymenoptera: Formicidae), is an invasive ant of serious public health significance. In this study, a device and a protocol were developed for collecting brood of the red imported fire ant in the field. ... see more

The Asian citrus psyllid, Diaphorina citri Kuwayama (Hemiptera: Liviidae), is the insect vector of huanglongbing (HLB), the most devastating citrus disease in the world. The objective of this study was to evaluate the efficacy of two species of commercial... see more

With the advances in mobile network technology, the use of portable devices and mobile networks for learning is not limited by time and space. Such use, in combination with appropriate learning strategies, can achieve a better effect. Despite the effectiv... see more

In this paper, a stochastic multi-objective chance-constrained programming model (SMOCCP) was developed for tackling the water supply management problem. Two objectives were included in this model, which are the minimization of leakage loss amounts and to... see more

1 of 14.532 pages  |  10  records  |  more records»