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The analysis of phenoxy acid herbicide 2,4-D(2,4-dichlorophenoxyacetic acid) and its ozonation intermediates using high performance liquid chromatography (HPLC) was studied in this paper. We discussed the effect of detective wave, mobile phase components and flow rate on the separation and detection of 2,4-D and its ozonation intermediates. Experimental results reveal several key parameters in the...
The spread of mobile connectivity is generating major social and economic benefits around the world, while along with the rapid growth of new telecommunication technologies like mobile broadband communication and M2M (Machine-to-Machine) networks, larger number of various base stations will be employed into the network, which will greatly increase the power expense and CO2 emission. In order to degrade...
In this paper, the optimal number of pilot symbols for orthogonal frequency division multiplexing (OFDM) systems is determined based on the criterion of minimizing the loss in mean capacity, and the simulation results that verify the analysis are presented.
In LTE, AC barring check is performed by UEs before initiating an RRC connection. In some cells with a low access probability, the UEs may have to keep retrying access in the serving cell which results in higher connection failure and longer access delay. We therefore propose balancing the UEs by adjusting the cell reselection criteria based on the access probability in the serving cell and neighboring...
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