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Dynamic response of curvilinearly stiffened plates under thermal environment
Jingze Liu,Qingguo Fei,Shaoqing Wu,Dahai Zhang,Dong Jiang 대한기계학회 2021 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.35 No.6
An improved finite element modeling method is developed for isotropic curvilinearly stiffened plates under a thermal environment. The existing modeling method for curvilinearly stiffened plates avoids the difficulty of node overlap, which is suitable for plates with different thicknesses. By introducing the influence of temperature on material parameters and thermal stress on additional stiffness, the existing method is improved and extended to the study of thermodynamics. The proposed method is verified by modal test at normal temperature and commercial finite element software at the thermal environment. The variation of dynamic characteristics with temperature under different boundary conditions was studied. Results show that when the boundary conditions are asymmetric, the influence of temperature on the thermal mode shape is more significant than the case of symmetrical.
Nanocellulose-Based Hybrid Hydrogels as Flexible Cathodes of Aqueous Zn-Ion Batteries
Jingze Liu,Jiamei Lai,Xingyuan Huang,Hesheng Liu 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2019 NANO Vol.14 No.4
Cellulose nanofibers, detached from natural plants, are very promising for applications in the energy storage devices. The swelling of cellulose nanofibers provides abundant paths in the hybrid hydrogels for ion diffusion towards the active material. There is an optimal composition of 50 wt.% for cellulose nanofibers in the hybrid hydrogels due to the balance between ion diffusion and electron transport, that is, facilitated by conductive graphite nanoplatelets. The aqueous Zn-ion batteries, assembled from the optimized hybrid hydrogels, have a high-specific capacity of 149.4 mAh/g and energy density of 113.2mWh/g, respectively. Moreover, high flexibility of the aqueous Zn-ion batteries is guaranteed by the hybrid hydrogels. There is only a little decay in the electrochemical performance under mechanical bending.
Areas of endemism for scale insects in China
Fang Wang,Chao-Zhong Jiang,Jingze Liu,Jiu-Feng Wei 한국응용곤충학회 2017 Journal of Asia-Pacific Entomology Vol.20 No.4
The identification of areas of endemism (AOEs) has been a major challenge in biogeography. In the present study, parsimony analysis of endemicity (PAE) was used to define the AOEs of scale insect species in China. A total of 11 Chinese scale insect endemic areas, Tianshan mountain (A2-B1), South Tibet (H2-H3), Eastern Qinling Mountain (E12-E13), Dalou mountain (G11-H11), West Yunnan (I9, J9-J10, K9), Hainan Island-South west Guangdong (M13-L14), South Guangdong (K15-K16), South Fujian (J17-J18), Center Zhejiang (H18-H19), Taiwan Island (K19-L19) and association of Henan and Hubei (F15-G16), had been identified based on a distribution database of 506 endemic scale insect species. The Chinese areas of scale insects endemism showed a remarkable mountain effect. Hainan and Taiwan islands showed considerable endemism. Moreover, most of these AOEs were found to be endemic sites for several other plants and animals. These results will provide important information for further studies on scale insects diversity in China.
Ojaghian, Mohammad Reza,Jiang, Heng,Xie, Guan-Lin,Cui, Zhou-Qi,Zhang, Jingze,Li, Bin The Korean Society of Plant Pathology 2012 Plant Pathology Journal Vol.28 No.2
Sclerotinia sclerotiorum is a serious pathogen which causes yield loss in many dicotyledonous crops including potato. The objective of this study was to assess the potential of biofumigation using three Brassica crops including Brassica napus, B. juncea and B. campestris against potato stem rot caused by S. sclerotiorum by in vitro tests. Both macerated and irradiated dried tissues were able to reduce radial growth and sclerotia formation of five pathogen isolates on PDA, but macerated live tissues were more effective. Compared with other tested crops, B. juncea showed more inhibitory effect against the pathogen. The volatile compounds produced from macerated tissues were identified using a gas chromatograph-mass spectrometer. The main identified compounds were methyl, allyl and butyl isothiocyanates. Different concentrations of these compounds inhibited mycelial growth of the pathogen in vitro when applied as the vapor of pure chemicals. A negative relationship was observed between chemicals concentrations and growth inhibition percentage. In this study, it became clear that the tissues of local Brassica crops release glucosinolates and have a good potential to be used against the pathogen in field examinations.
Wen-Hua Teng,Wen-Jing Sun,Bin Yu,Fengjie Cui,Jing-Ya Qian,Jingze Liu,Liang Wang,Xiang-Hui Qi,Hua Wei 한국생물공학회 2013 Biotechnology and Bioprocess Engineering Vol.18 No.4
A continuous conversion process of rice starch hydrolysate to 2-keto-D-gluconic acid (2KGA) by Arthrobacter globiformis C224 was developed. Its feasibility for industrial application was also evaluated. Results showed that the initial cell concentration exceeding 1.25 g/L met the continuous 2KGA production at a stable dilution rate and media composition, while the dilution rate and feeding glucose concentration had a significant effect on 2KGA production performance. The optimal operating parameters were obtained as: 0.090/h of dilution rate and 171.0 g/L of feeding glucose concentration. Under these conditions, the steady state had a produced 2KGA concentration of 124.74 g/L, average volumetric productivity of 11.23 g/L/h,and yield of 0.97 g/g. In conclusion, continuous 2KGA production by the A. globiformis C224 strain would be a superior industrial process for the production of 2KGA in terms of its high 2KGA productivity and yield.
Changes in Protein Phosphorylation during Salivary Gland Degeneration in Haemaphysalis longicornis
Qi Xiao,Yuhong Hu,Xiaohong Yang,Jianna Tang,Xiaoshuang Wang,Xiaomin Xue,Mengxue Li,Minjing Wang,Yinan Zhao,Jingze Liu,Hui Wang 대한기생충학ㆍ열대의학회 2020 The Korean Journal of Parasitology Vol.58 No.2
The ticks feed large amount of blood from their hosts and transmit pathogens to the victims. The salivary gland plays an important role in the blood feeding. When the female ticks are near engorgement, the salivary gland gradually loses its functions and begins to rapidly degenerate. In this study, data-independent acquisition quantitative proteomics was used to study changes in the phosphorylation modification of proteins during salivary gland degeneration in Haemaphysalis longicornis. In this quantitative study, 400 phosphorylated proteins and 850 phosphorylation modification sites were identified. Trough RNA interference experiments, we found that among the proteins with changes in phosphorylation, apoptosis-promoting Hippo protein played a role in salivary gland degeneration.