Dear Editor,This letter examines the fixed-time stability of the Nash equilibrium(NE)in non-cooperative games.We propose a consensus-based NE seeking algorithm for situations where players do not have perfect informat...Dear Editor,This letter examines the fixed-time stability of the Nash equilibrium(NE)in non-cooperative games.We propose a consensus-based NE seeking algorithm for situations where players do not have perfect information and communicate via a topology graph.The proposed algorithm can achieve NE in a fixed time that does not depend on initial conditions and can be adjusted in advance.展开更多
Dear editor,Recently,researchers have obtained many new results about the multi-agent systems(MASs)[1]-[3].In[1],the fixed-time cooperative control(FTCC)algorithm of linear MASs with matched disturbances was proposed....Dear editor,Recently,researchers have obtained many new results about the multi-agent systems(MASs)[1]-[3].In[1],the fixed-time cooperative control(FTCC)algorithm of linear MASs with matched disturbances was proposed.The nonholonomic chained-form dynamics case was considered in[2].In[3],the output tracking problem with data packet dropout was solved for high-order MASs.Moreover,delay frequently occurs because of the non-ideal data transmission[4],and the corresponding FTCC algorithm of MASs with delay was given in[5].展开更多
A species of the genus Nephrotoma from Xizang,China is described as new to science,namely N.zhuolonggouensis Men,sp.nov.,which differs from its relative species by the structures of outer gonostylus,median lobe of ste...A species of the genus Nephrotoma from Xizang,China is described as new to science,namely N.zhuolonggouensis Men,sp.nov.,which differs from its relative species by the structures of outer gonostylus,median lobe of sternite eighth and gonapophyses.Hypopygiums of another six species,N.concava Yang&Yang,1990,N.geniculata Yang&Yang,1987,N.hirsuticauda Alexander,1924,N.martynovi Alexander,1935,N.nigrostylata Alexander,1935 and N.virgata(Coquillett,1898),are redescribed based on additional characters.展开更多
In present paper, the morphological descriptions of reproductive systems for Libnotes（Libnotes） pseudonohirai Men, 2015 in both sexes are provided, which represents the first description of the internal reproductive...In present paper, the morphological descriptions of reproductive systems for Libnotes（Libnotes） pseudonohirai Men, 2015 in both sexes are provided, which represents the first description of the internal reproductive system in this genus. The female internal reproductive system of Libnotes（Libnotes） pseudonohirai is compared with that of the two presently examined species, Hexatoma（Eriocera） cleopatroides Men, 2015 and Holorusia sp., as well as some species previously documented. The morphological differences of internal reproductive organs for these species are listed. Additionally, the characteristic modes of internal reproductive systems for Tipulidae and Limoniidae are compared and summarized.展开更多
基金supported by the National Natural Science Foundation of China(62373107,61921004,62303009)the Natural Science Foundation of Jiangsu Province of China(BK20202006)the“Zhishan”Scholars Programs of Southeast University。
文摘Dear Editor,This letter examines the fixed-time stability of the Nash equilibrium(NE)in non-cooperative games.We propose a consensus-based NE seeking algorithm for situations where players do not have perfect information and communicate via a topology graph.The proposed algorithm can achieve NE in a fixed time that does not depend on initial conditions and can be adjusted in advance.
基金supported in part by the National Natural Science Foundation of China(62103099,61921004)the Natural Science Foundation of Jiangsu Province of China(BK20210214).
文摘Dear editor,Recently,researchers have obtained many new results about the multi-agent systems(MASs)[1]-[3].In[1],the fixed-time cooperative control(FTCC)algorithm of linear MASs with matched disturbances was proposed.The nonholonomic chained-form dynamics case was considered in[2].In[3],the output tracking problem with data packet dropout was solved for high-order MASs.Moreover,delay frequently occurs because of the non-ideal data transmission[4],and the corresponding FTCC algorithm of MASs with delay was given in[5].
基金supported by the National Natural Science Foundation of China(31300551)the Scientific Research Foundation of the Higher Education Institutions of Anhui Province(KJ2021A0646)the Anhui Outstanding Young Talent Support Program(gxbjZD2020073)。
文摘A species of the genus Nephrotoma from Xizang,China is described as new to science,namely N.zhuolonggouensis Men,sp.nov.,which differs from its relative species by the structures of outer gonostylus,median lobe of sternite eighth and gonapophyses.Hypopygiums of another six species,N.concava Yang&Yang,1990,N.geniculata Yang&Yang,1987,N.hirsuticauda Alexander,1924,N.martynovi Alexander,1935,N.nigrostylata Alexander,1935 and N.virgata(Coquillett,1898),are redescribed based on additional characters.
基金supported by the National Natural Science Foundation of China(31300551)the Anhui Outstanding Young Talent Support Program(gxfx2017059)
文摘In present paper, the morphological descriptions of reproductive systems for Libnotes（Libnotes） pseudonohirai Men, 2015 in both sexes are provided, which represents the first description of the internal reproductive system in this genus. The female internal reproductive system of Libnotes（Libnotes） pseudonohirai is compared with that of the two presently examined species, Hexatoma（Eriocera） cleopatroides Men, 2015 and Holorusia sp., as well as some species previously documented. The morphological differences of internal reproductive organs for these species are listed. Additionally, the characteristic modes of internal reproductive systems for Tipulidae and Limoniidae are compared and summarized.
