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Nowadays aquaculture industry requires the real-time control on farm environmental parameters such as humidity, temperature and illumination intensity. This paper presented a remote system for farm environment monitoring which uses ZigBee technology, embedded system and network database. Except obtaining the monitoring function on farm humidity, temperature, light intensity and data query, the system...
Phytochemical investigation of Celastrus aculeatus Merr. led to the isolation of nine compounds. Their structures were identified to be dulcitol (1), β-sitosterol (2), n-tritriacontane (3), nimbidiol (4), pristimerin (5), p-hydroxybenzoic acid (7), vanillic acid (8), 3, 5-dimethoxy-4-hydroxybenzoic acid (9) and a new compound named pristimerol (6) on the basis of mass and NMR spectra. This is the...
The causal relationship of 3-month copper futures price in Shanghai Futures Exchange (SHFE) and London Metal Exchange (LME) is examined in this paper by cointegration test and Granger causality test. The results show that as the biggest metal futures exchange in the world, future price of copper in LME is the Granger causality of that of copper in SHFE for a long time. However, there is dual causality...
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