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Hongwei Zhu,Huitao Liu,Xin Yu,Jianlong Zhang,Linlin Jiang,Guozhong Chen,Zhibin Feng,Youzhi Li,Tao Feng,Xingxiao Zhang 대한수의학회 2018 Journal of Veterinary Science Vol.19 No.5
Herpesvirus infections in Cervidae are a serious threat affecting some deer species worldwide. In our attempt to identify malignant catarrhal fever-associated herpesviruses in deer herds, ten gammaherpesviral DNA fragments were identified in five species of deer in herds in China by using a pan-herpesvirus polymerase chain reaction assay targeting viral DNA polymerase. Notably, in sambar (Rusa unicolor), a novel gamma-2 herpesvirus was identified that showed a close relationship with fallow deer lymphotropic herpesvirus (LHV), while the other fragments were phylogenetically grouped together with Elk-LHV. Determination of whether these viruses have any clinical implication in these deer species should be undertaken urgently.
An improvement on the concrete exothermic models considering self-temperature duration
Zhenyang Zhu,Weimin Chen,Sheng Qiang,Guoxin Zhang,Youzhi Liu 사단법인 한국계산역학회 2017 Computers and Concrete, An International Journal Vol.19 No.6
Based on the Arrhenius equations, several hydration exothermic models that precisely calculate the influence of concrete’s self-temperature duration on its hydration exothermic rate have been presented. However, the models’ convergence is difficult to achieve when applied to engineering projects, especially when the activation energy of the Arrhenius equation is precisely considered. Thus, the models’ convergence performance should be improved. To solve this problem and apply the model to engineering projects, the relationship between fast iteration and proper expression forms of the adiabatic temperature rise, the coupling relationship between the pipe-cooling and hydration exothermic models, and the influence of concrete’s self-temperature duration on its mechanical properties were studied. Based on these results, the rapid convergence of the hydration exothermic model and its coupling with pipe-cooling models were achieved. The calculation results for a particular engineering project show that the improved concrete hydration exothermic model and the corresponding mechanical model can be suitably applied to engineering projects.