Henan Institute of Science and Technology

Xinxiang, China
Time filter
Source Type

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 Y.-B.,Henan Institute of Science and Technology | Wang X.-L.,Henan Normal University
Nuclear Physics B | Year: 2010

The left-right twin Higgs (LRTH) model predicts the existence of three additional Higgs bosons: one neutral Higgs φ 0 and a pair of charged Higgs bosons φ ± In this paper, we studied the production of a pair of charged and neutral Higgs bosons associated with standard model gauge boson Z at the ILC, i.e., e +e -←Zφ +φ - and e +e -←Zφ 0φ 0. We calculate the production rate and present the distributions of the various observables, such as, the distributions of the energy and the transverse momenta of final Z-boson and charged Higgs boson φ - the differential cross section of the invariant mass of charged Higgs bosons pair, the distribution of the angle between charged Higgs bosons pair and the production angle distributions of Z-boson and charged Higgs boson φ -. Our numerical results show that, for the process e +e -←Zφ +φ -, the production rates are at the level of 10-1 fb with reasonable parameter values. For the process of e +e -←Zφ 0φ 0, we find that the production cross section are smaller than 6×10 -3 fb in most of parameter space. However, the resonance production cross section can be significantly enhanced. © 2010.

Ma H.,Henan Institute of Science and Technology | Ledward D.A.,University of Reading
Meat Science | Year: 2013

When subjected to high pressures at ambient temperatures, the shelf life of fresh meat is increased; however the meat takes on a cooked appearance as the actomyosin denatures at about 200. MPa and the myoglobin denatures and/or co-precipitates with other proteins at about 400. MPa. In addition, at pressures of 400. MPa and above the unsaturated lipids in the meat become more susceptible to oxidation, probably due to the release of iron from complexes present in meat (haemosiderin and ferritin?) and/or changes in the lipid membrane. Thus, even if legislation allowed it, it is unlikely that many consumers would be prepared to buy such meat. However if pre-rigor meat is subjected to pressures of about 100-150. MPa, below those necessary to cause colour changes, it becomes significantly more tender than its untreated counterpart and this may now be a commercially viable process, given the decreasing cost of high pressure rigs. When treated at 100-200. MPa while the temperature is raised from ambient to around 60. °C post-rigor meat also yields a tender product and this may also be a commercially attractive process to parts of the food industry, for example those involved in catering. © 2013 Elsevier Ltd.

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.

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.

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.-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.S.,Henan Institute of Science and Technology
Reproduction in Domestic Animals | Year: 2011

Telegony is the belief that the sire first mated to a female will have an influence upon some of that female's later offspring by another male. Although the reality of telegony was acknowledged by such authorities as Darwin, Spencer, Romanes and many experienced breeders, it has been met with scepticism because of Weismann's unfavourable comments and negative results obtained in several test experiments. In this article, alleged cases of telegony are provided. A search of the literature of cell biology and biochemistry reveals several plausible mechanisms that may form the basis for telegony. These involve the penetration of spermatozoa into the somatic tissues of the female genital tract, the incorporation of the DNA released by spermatozoa into maternal somatic cells, the presence of foetal DNA in maternal blood, as well as sperm RNA-mediated non-Mendelian inheritance of epigenetic changes. © 2010 Blackwell Verlag GmbH.

This paper is concerned with the maximum-likelihood (ML) calibration methods tailored to the antenna arrays whose spatial responses are perturbed by mutual coupling effects and unknown sensor gain/phase responses. Unlike the existing work, the proposed methods are capable of jointly exploiting the spatial-domain information and time-domain waveform information of the calibration sources. Two kinds of numerical optimization algorithm are devised dependent on different array geometries. One is suitable for arbitrary irregular array manifold, while the other applies to some particular uniform arrays. Additionally, based on the maximum a posteriori probability (MAP) criterion, we extend the two algorithms to the scenario where the true values of the calibration source azimuths deviate slightly from the nominal ones with a priori known Gaussian distribution. The Cramér-Rao bound (CRB) expressions for the unknowns are derived in the absence and presence of the azimuth deviations, respectively. Simulation results support that the performances of the proposed algorithms are preferable to the ones which merely employs the spatial-domain information of the calibration sources, and are able to attain the corresponding CRB. © 2012 Springer Science+Business Media New York.

Yuan H.-D.,Henan Institute of Science and Technology | Yuan H.-D.,State Key Laboratory of Mathematical Engineering and Advanced Computing
Information Sciences | Year: 2014

More and more studies have been dedicated to investigating secret sharing with steganography. Unfortunately, no previous work has ever reported its capability to resist steganalysis. In this paper, we pose the multi-cover adaptive steganography problem. Two secret sharing methods for natural images based on multi-cover adaptive steganography have been proposed. The secret information is adaptively shared into textured regions of covers by a spatial ±1 operation. In comparison to previous secret sharing methods, each of the proposed methods uses a simple share-constructing operation and each has lossless secret reconstruction and high quality shares. More importantly, the proposed methods are more secure in terms of resistance against state-of-The-Art steganalysis techniques. In comparison to previous steganographic methods, the proposed methods hide secret bits among textured regions with different covers and are thus difficult to detect. Moreover, the proposed methods can be used to adaptively embed location-sensitive secrets (e.g., secret images) and require no stego key for extracting the encrypted message. These results also have significance in individual cover steganography. The experimental results show the effectiveness of the proposed methods. © 2013 Elsevier Inc. All rights reserved.

Loading Henan Institute of Science and Technology collaborators
Loading Henan Institute of Science and Technology collaborators