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Qi Li,Qingzhi Wang,Mingjun Qi,Jianlong Ge,Rihao Cong 한국유전학회 2011 Genes & Genomics Vol.33 No.3
A total of 113 novel EST-derived simple sequence repeat (EST-SSR) markers were developed in the Pacific oyster (Crassotrea gigas). Polymorphisms of these markers were evaluated in a wild population of 30 individuals. The number of alleles per locus ranged from 2 to 27 with an average of 6.3, and the observed and expected heterozygosities varied from 0 to 0.9667 and from 0.0333 to 0.9701, respectively. Mendelian segregations were tested for 24 of the markers that were polymorphic in one family produced by single-pair mating. Null alleles were discovered at four loci. Nine tests of segregation ratios revealed significant departures from expected Mendelian ratios. As a useful addition to the collection of the microsatellites that are now available for C. gigas, these EST-SSR markers will help the advance in investigation of QTL mapping and genetic diversity in this species.
Stability Analysis of Switched Delay Systems with All Subsystems Unstable
Guang-Deng Zong,Qingzhi Wang,Haibin Sun 제어·로봇·시스템학회 2016 International Journal of Control, Automation, and Vol.14 No.5
The stability problem of switched delay systems with all subsystems unstable is investigated in this paper. A sufficient criterion is firstly proposed to guarantee asymptomatic stability of nonlinear switched delay systemswith all subsystems unstable, where the stabilization property of switching behaviors is exploited to compensate thedivergence of states. Then by constructing multiple discretized Lyapunov-Krasovskii functionals, stability criteriaare developed for linear switched time-invariant and time-varying delay systems with all subsystems unstable. Finally, two examples are provided to illustrate the feasibility, superiority and application of the proposed approach.
Longbin Qi,Yunxia Hu,Qingzhi Chai,Qun Wang 한국공업화학회 2019 Journal of Industrial and Engineering Chemistry Vol.72 No.-
The anti-biofouling performance of silver nanoparticles (Ag NPs) modified polyethersulfone (PES)membrane was evaluated during the concentration of fermentation broth. The Ag NPs containingmembrane did not exhibit biofouling mitigation performance during thefirstfiltration cycle, but couldhelp to recover waterflux upon physical cleaning. After threefiltration-clean cycles, the Ag NPscontaining membranes presented higher waterflux and slowerflux decline than the control membraneswithout Ag NPs. Ag NPs on the membrane surface facilitated the effective removal of cake layer. Moreover, the Ag NPs-containing membrane had no negative effects on the activities of bacteria infermentation broth.