Run Zhang

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A voltage-controlled birefringent cell based on ceramic PMN-PT material is used to enable fast intensity modulation of femtosecond laser pulses in the 800 nm wavelength window. The birefringent cell based on a PMN-PT compound has comparatively high electro-optic response, allowing for a short interaction length of 3 mm and thus very small size, low(More)
With more and more data emerging on the Semantic Web, dealing with mass semantic data became an important problem. The current Semantic Web framework Jena doesn't support storage on distributed file system. We designed a new storage engine named JenaPro which extended the function of Jena to enable it access file on distributed file system HDFS of Hadoop.(More)
The research and application of semi-fragile digital watermark is being paid more and more attention now, especially for content authentification. We proposes a novel design for image content authentification based on semi-fragile digital watermark using side information, which combines the modern RSA public key encryption technique with communication(More)
A fluorescence chemosensor, 2-hydroxy-1-naphthaldehyde azine (HNA) was designed and synthesized for sequential detection of Cu(2+) and biothiols. It was found that HNA can specifically bind to Cu(2+) with 1:1 stoichiometry, accompanied with a dramatic fluorescence quenching and a remarkable bathochromic-shift of the absorbance peak in HEPES buffer. The(More)
A new Gadolinium(III)-coumarin complex, DO3A-Gd-CA, was designed and prepared as a dual-modal probe for simultaneous fluorescence and relaxivity responses to fluoride ions (F-) in aqueous media and mice. DO3A-Gd-CA was designed by using Gd(III) center as an MRI signal output unit and fluoride binding site, and the 4-(diethylamino)-coumarin-3-carboxylic acid(More)
With DCT and HVS, this paper proposed a frequency domain image watermarking algorithm based on mapping principle in Toral Automorphism. Firstly, we scrambled the original watermark image with Arnold transformation. Secondly, we transformed the original carrier image by discrete cosine transformation and chose some proper intermediate frequency coefficients(More)
Nitric oxide (NO) is one of the most important intercellular signaling molecules, and plays important roles in various biological systems. In this work, a unique RuII complex, tris[(5-(4-methylamino-3-aminobenzylamino)-1,10-phenanthroline)] ruthenium(II) hexafluorophosphate [Ru(MAA-phen)3][PF6]2, has been designed and synthesized as a luminescent probe for(More)
Time-gated luminescence detection technique using lanthanide complexes as luminescent probes is a useful and highly sensitive method. However, the effective application of this technique is limited by the lack of the target-responsive luminescent lanthanide complexes that can specifically recognize various analytes in aqueous solutions. In this work, a(More)
Taking diatomite as the main material, using the solid phase sintering process, diatomite-based porous ceramic whose median powder size and specific surface area of powder are 1.28um, 39.25m2/g, mean pore size of sintered body is 157.8nm respectively was prepared by grinding time 80min. Effect of grinding time on microstructure and properties of samples,(More)
We propose Remaining Delivery Time Estimation based Routing (RDTER), a single-copy routing protocol for intermittently connected mobile networks. Nodes predict the Remaining Delivery Time (RDT) to each destination based on the distance estimations obtained from the recent two consecutive contact records. The distance estimation is set to be proportional to(More)
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