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Pingdingshan, China

Zhang D.-L.,Huzhou University | Yuan S.-Q.,Pingdingshan College | Ding B.-G.,Huzhou University
Chinese Physics Letters | Year: 2015

We investigate the properties of the low-lying states and the relevant shape dynamics of 98Mo within the framework of the proton-neutron interacting boson model (IBM2). By considering the relative energy of the γ proton boson to be different from that of the neutron bosons, the low-lying levels and the key observable B(E2)transition branching ratios are calculated. The characteristic feature of the energy spectrum and the most crucial available structure indicator indicate that the substantial mixing between the spherical-vibrational and γ-unstable shapes in 98Mo. The calculation results of the overall deformation in 98Mo are almost the same for both the ground and the first excited 0+ states, showing a weak deformation. While the triaxiality parameter indicates that the mostly triaxial shape with some oblate for the ground state, and the triaxial shape with some prolate for the excited 0+2 state, being equilibrium shapes of spherical-vibrational and γ-unstable in 98Mo. © 2015 Chinese Physical Society and IOP Publishing Ltd. Source

Zhang D.-L.,Huzhou Teachers College | Yuan S.-Q.,Pingdingshan College | Ding B.-G.,Huzhou Teachers College
Chinese Physics Letters | Year: 2014

We describe the properties of low-lying states of 102Ru within the framework of the proton-neutron interacting model IBM2. The theoretical predictions of the ground state, quasi-γ and quasi-β bands, and the ratios of the B(E2) transition strengths are reproduced very well. The structural properties of 102Ru are identified in the parameters space of the interacting boson model (IBM2). The characteristic feature of the energy spectrum structure exhibits that 102Ru is very close to the critical point of Uπv(5) - Oπv(6) transition and towards Uπv(5) symmetry. The key sensitive quantities of the B(E2) branching ratio clearly indicate that 102Ru is a primary O πv (6) symmetry, while with a somewhat Uπv (5) symmetry. It is possible that the shape coexistence persists in 102Ru, whereas the evident fingerprint of the shape coexistence has not been observed. © 2014 Chinese Physical Society and IOP Publishing Ltd. Source

Fan A.-W.,Pingdingshan College | Chang Q.,Guizhou Power Grid Company | Lu S.-X.,Pingdingshan College
Dianli Xitong Baohu yu Kongzhi/Power System Protection and Control | Year: 2012

Targeting at the security problem of the electrical dispatching system, the ECC (Elliptic Curve Cryptography) Sequential Multiple Digital Signature Scheme based on electrical dispatching system is put forward. The confidence center is authenticated by means of zero-knowledge, the identification of signature and validity has been processed by Hash, to avoid the attack of identification switch and ensure the integrity of signature. Compared with similar algorithm, it is characterized with anti-denying, anti-forgery, verifiability of integrity of signature. It will avoid the security problem resulted from transferring message by plaintext, insure the integrity of massage and verifiability of legitimate operating tickets and solve the security problem of electrical dispatching system. The application test shows that the algorithm will meet the requirement of real-time for electrical dispatching system. Source

Dan Z.,Henan Agricultural University | Haina S.,Pingdingshan College | Hao C.,Nanjing Agricultural University | Deyue Y.,Nanjing Agricultural University
Yi chuan = Hereditas / Zhongguo yi chuan xue hui bian ji | Year: 2015

Soybean is a major source of edible oil and phytoprotein. Low phosphorus available in soil is an important factor limiting the current soybean production. Effective ways to solve the problem include identification of germplasms and genes tolerant to low-phosphorus stress, and cultivation of soybean varieties with high phosphorus efficiency. Recently many researches have been carrying out investigations to map and clone genes related to phosphorus efficiency in soybeans. However, due to the complexity of the soybean genome and little knowledge of functional genes, it has been difficult to understand the mechanism of soybean tolerance to low phosphorus. Although quantitative trait locus (QTL) mapping related to low phosphorus tolerance has made some progress, it remains elusive to obtain accurate candidate genes for molecular breeding applications, due to the limited accuracy of QTL. Even for the cloned soybean low phosphorus tolerance genes, the molecular mechanisms are largely unknown, further limiting the application to breeding. In this review, we summarize the progresses on mapping, cloning and functional characterization of soybean low phosphorus tolerance genes. Source

Zhang D.-L.,Huzhou University | Yuan S.-Q.,Pingdingshan College | Ding B.-G.,Huzhou University
Chinese Physics C | Year: 2015

The characteristics of the lowest mixed-symmetry states 2+ms and 1+ms for 132Xe, 134Ba and 136Ce in the even-even N = 78 isotones are investigated within the framework of the IBM2 model. The lowest mixed-symmetry state 2+ms levels for both a single isolated state in 132Xe and 136Ce and a fragmented state in 134Ba are reproduced by the predictions. The agreement between the IBM2 calculation and the experimental values is good for the B(E2) and B(M1) transition probabilities both quantitatively and qualitatively. The predicted summed B(M1) strength follows the experimental data, remaining nearly constant as a function of proton number along the chain of the N = 78 isotones. © 2015 Chinese Physical Society and the Institute of High Energy Physics of the Chinese Academy of Sciences and the Institute of Modern Physics of the Chinese Academy of Sciences and IOP Publishing Ltd. Source

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