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In a recent article by Liu,Pei,and Zhu,Lie bialgebra structures on the twisted Heisenberg-Virasoro algebra were determined. By disposing the indexing set, the generalized Heisenberg-Virasoro algebra was considered. It is proved that all Lie bialgebra structures on centerless generalized Heisenberg-Virasoro algebra L are coboundary triangular by proving that the first cohomology group H1 (L,V) =0. 相似文献
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In algebra, the Jacobson-Bourbaki theorem is especially useful for generalizations of the Galois theory of finite, normal and separable field extensions. It was obtained by Jacobson for fields and extended to division rings by Jacobson and Cartan who credited the result to unpublished work by Bourbaki. In 2005, the Jacobson-Bourbaki correspondence theorem for commutative rings was formulated by Winter. And this theorem for augmented rings was formulated by Kadison in 2012. In this paper, we prove the Jacobson-Bourbaki theorem for noncommutative rings which is finitely generated over their centers. We establish a bijective correspondence between the set of subdivisions which are right finite codimension in A and the set of Galois rings of the additive endomorphisms End A of A which is finitely generated over its center. 相似文献
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研究一类金融系统的混沌同步问题.首先利用非线性反馈控制实现了该金融系统的自同步,其次利用线性耦合的方法探讨了该系统的耦合自同步,得到了两种使该金融系统渐进同步的控制方法.数值仿真结果表明所给方法是有效的. 相似文献
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固定化混合菌种发酵玉米秸秆水解液的研究 总被引:1,自引:0,他引:1
通过固定化混合菌种发酵法,研究了嗜单宁管囊酵母(Pachysolen tannophilus)和酿酒酵母(Saccharomyces cerevisiae)共固定于海藻酸钙中发酵玉米秸秆水解液工艺。研究结果表明,所得到的固定化混合菌种能同时利用玉米秸秆水解液中的木糖和己糖共同发酵,其效果明显优于游离混和菌种发酵,也明显优于S.cerevisiae和P.stipitis两种细胞共固定发酵。在发酵周期24h,初始pH值6.0,初始糖浓度118.42g/L的条件下,酒精转化率可达到0.4g/g糖。 相似文献
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针对Rssler超混沌系统, 采用自适应控制方法, 通过设计控制器, 研究该系统的广义混合投影同步(FSHPS). 并在此基础上, 首次提出了响应系统同时含有控制变量α时, 系统的改进广义混合投影同步(IFSHPS)运动行为, 理论分析和数值仿真验证了该同步方法的可行性. 相似文献
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一个新类Lorenz混沌系统的动力学分析及电路仿真 总被引:2,自引:1,他引:1
提出了一个新的三维自治类Lorenz系统,理论分析了该系统的非线性动力学特性.分析了系统在平衡点处的稳定性,以及产生Hopf分岔的条件. 最后对该系统的一个混沌吸引子进行了数值仿真和实际电路模拟. 相似文献
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建立小动物活体生物发光成像技术,研究三氧化二砷(As2O3)抑制小鼠B16恶性黑色素瘤的肺转移作用的方法,比较活体生物发光成像技术与常规动物实验技术的优劣性;并探讨As2O3抗小鼠恶性黑色素瘤肺转移的可能机制。结果表明,活体生物发光成像技术可以非侵袭性地动态监测黑色素瘤B16细胞在小鼠肺部的转移过程以及评估As2O3的体内抑制B16肺转移的作用,且活体生物发光成像技术的检测灵敏度优于传统肺转移瘤结节计数技术;As2O3主要通过减低肿瘤新生血管形成、促使肿瘤组织坏死而发挥抗小鼠黑色素瘤肺转移的作用。 相似文献