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( Xiandeng He ),( Ronghua Zhou ),( Nan Chen ),( Shun Zhang ) 한국인터넷정보학회 2018 KSII Transactions on Internet and Information Syst Vol.12 No.2
In this paper, we design a segment training based individual channel estimation (STICE) scheme for the classical two-way relay network (TWRN) with multi-pair sources (MPS) and amplify-and-forward (AF). We adopt the linear minimum mean square error (LMMSE) channel estimator to minimize the mean square error (MSE) without channel estimation error, where the optimal power allocation strategy from the relay for different sources is obtained. Then the MSE gains are given with different source pairs among the proposed power allocation scheme and the existing power allocation schemes. Numerical results show that the proposed method outperforms the existing ones.
Chunxiu Shen,Zhiqun Que,Yumei Xia,Ning Tang,Ding Li,Ronghua He,Mengliang Cao 한국식물학회 2017 Journal of Plant Biology Vol.60 No.6
Plant annexins are Ca2+-dependent phospholipidbindingproteins and exist as multigene families in plants. They are implicated in the regulation of plant developmentas well as protection from environmental stresses. In thisstudy, the rice annexin gene OsAnn3 knockout was performedvia the CRISPR/Cas9 (clustered regularly interspaced shortpalindromic repeats/CRISPR associated proteins) mediatedgenome editing. Thus, mutant plantlets were successfullyobtained. We identified cold tolerance phenotype of T1mutant lines from T0 biallelic mutants using the 4~6°C for 3days cold treatment. The results showed that REC (the relativeelectrical conductivity) of T1 mutant lines was increased, andthe survival ratio of T1 mutant lines was decreased dramaticallycompared with the wild type after the exposure to coldtreatment. It was suggested that OsAnn3 was involved in coldtolerance of rice.