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Yuan H.-D.,Henan Institute of Science and Technology
IEEE Transactions on Information Forensics and Security | Year: 2011

Exposing the processing history of a digital image is an important problem for forensic analyzers and steganalyzers. As the median filter is a popular nonlinear denoising operator, the blind forensics of median filtering is particularly interesting. This paper proposes a novel approach for detecting median filtering in digital images, which can 1) accurately detect median filtering in arbitrary images, even reliably detect median filtering in low-resolution and JPEG compressed images; and 2) reliably detect tampering when part of a median-filtered image is inserted into a nonmedian-filtered image, or vice versa. The effectiveness of the proposed approach is exhaustively evaluated in five different image databases. © 2006 IEEE.


Liu Y.,Henan Institute of Science and Technology
Gene | Year: 2013

Telegony is a discredited genetic phenomenon that a previous male may influence the characteristics of offspring subsequently borne by the same female to another male. Although its reality was acknowledged by such authorities as Charles Darwin and Herbert Spencer, it has been met with skepticism because of a lack of understanding of the theoretical basis for telegony. With the discovery of fetal genes in mother's blood, the penetration of somatic cells by sperm, and the ability of RNA to program genome rearrangement, mechanisms might exist for telegony. © 2013 Elsevier B.V.


Liu Y.-B.,Henan Institute of Science and Technology
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics | Year: 2011

Besides the SM-like Higgs boson h, the left-right twin Higgs(LRTH) model predicts the existence of the neutral pseudoscalar boson Φ 0. In this Letter, we study the pair production of the pseudoscalar boson Φ 0 and SM-like Higgs bosons h at the International Linear Collider (ILC). We find that the production cross section of the process e +e -→hΦ 0 are at the level of 10 -1fb with reasonable parameter values, However, the resonance production cross section can be significantly enhanced, which can reach several hundreds fb. In some favorable case (for example, small values of f and mΦ 0), the SM backgrounds are nowhere an issue by applying suitable cut on the bb̄ invariant mass spectrum. The ILC provides an idea environment for discovering the pseudoscalar boson and measuring its properties. © 2011 Elsevier B.V.


Liu Y.-B.,Henan Institute of Science and Technology | Wang X.-L.,Henan Normal University
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics | Year: 2011

The left-right twin Higgs model predicts one neutral Higgs boson ø0 and it acquires mass mø0~μr with the μ term, which can be lighter than half the SM-like Higgs boson mass in a portion of parameter space. Thus, the SM-like Higgs boson h can dominantly decay into a pair of light neutral Higgs bosons especially when mh is below the WW threshold. First, we examine the branching ratios of the SM-like Higgs boson decays and find that the new decay mode h→ø0ø0 is dominant for the case of mh>2mø0. Then we study the production via gluon fusion followed by the decay into two photons or two weak gauge bosons and found that the production rate can be significantly suppressed for some part of parameter space. Finally, we comparatively study the process γγ→h→bb- at ILC in the cases of mh>2mø0 and mh<2mø0, respectively. We find that these predictions can significantly deviated from the SM predictions, e.g., the gluon-gluon fusion channel, in the cases of mh>2mø0 and mh<2mø0, can be suppressed by about 80% and 45%, respectively. Therefor, it is possible to probe the left-right twin Higgs model via these Higgs boson production processes at the LHC experiment or in the future ILC experiment. © 2010.


Liu B.,Henan Institute of Science and Technology
Food chemistry | Year: 2013

The formation of supramolecular inclusion complexes between luteolin and five cyclodextrins namely β-cyclodextrin (β-CD), methyl-β-cyclodextrin (M-β-CD), hydroxyethyl-β-cyclodextrin (HE-β-CD), hydroxypropyl-β-cyclodextrin (HP-β-CD) and glucosyl-β-cyclodextrin (G-β-CD) was investigated. Results from phase-solubility studies showed that luteolin formed 1:1 stoichiometric inclusion complexes with these cyclodextrins with the G-β-CD complex displaying the greatest stability constant. The supramolecular structure of the luteolin/G-β-CD complex was investigated by ultraviolet-visible spectroscopy (UV), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), differential scanning calorimetry (DSC) and X-ray diffractometry (XRD). Results showed clearly the formation of a supramolecular complex in which the guest molecule, luteolin, was entrapped inside the cavity of the host, G-β-CD. The close association between luteolin and G-β-CD resulted in changes in some of the characteristic spectral, phase transitional and morphological properties of luteolin. Furthermore, molecular docking study showed that the complex was formed with the B ring of luteolin inserted into the cavity of G-β-CD. Copyright © 2013 Elsevier Ltd. All rights reserved.

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