Two rhodamine derivatives, N-mono-maleic acid amide-N′-rhodamine B hydrazide (MRBH) and N-mono-succinic acid amide-N′-rhodamine 6G hydrazide (SR6GH), were synthesized by amidation with maleic anhydride (MAH), succinic anhydride (SAH) and rhodamine B hydrazide, rhodamine 6G hydrazide, which were identified by FTIR, 1H NMR and elemental analysis. Two… (More)
RSS feeds provide a fast and effective way to publish up-to-date information or renew outdated contents for information subscribers. So far RSS information is mostly managed by content publishers but Internet users have less initiative to choose what they really need. More attention needs to be paid on techniques for user-initiative information discovery… (More)
An acrylic monomer bearing xanthene group, N-oxethyl acrylate-N′-rhodamine B hydrazide (ARBHE) was synthesized from N-hydroxyl ethyl-N′-rhodamine hydrazide (RBHE) and acryloyl chloride (Ac) in the presence of triethylamine in dry dichloromethane (CH2Cl2) at room temperature. The synthesized ARBHE was identified by FTIR, 1H NMR spectra and elementary… (More)
We experimentally investigate the spectral correlation between multiple modulation instability side lobes in dispersion oscillating fiber by leveraging the dispersive Fourier transformation. We found that parametric processes related to each side lobe pairs act quasi-independently.
To predict the customers' transaction behavior is essential to the basic work of client management in BtoC website. The Pareto/NBD model was generally accepted in this field. The BG/NBD model is an improved model of the Pareto/NBD. The paper makes use of actual transaction data at a site in Liaoning province to verify the applicability of the BG/NBD in this… (More)