1,724,842 research outputs found
Shang han liu jing ding fa
No full text陳澈撰 ; [劉晚榮輯]. 經絡歌訣 / 汪昂, [劉晚榮輯]. 傷寒六經定法 / 舒詔著 ; [劉晚榮輯]Chen Che zhuan ; [Liu Wanrong ji]. Jing luo ge jue / Wang Ang, [Liu Wanrong ji]. Shang han liu jing ding fa / Shu Zhao zhu ; [Liu Wanrong ji
A new species of Cylloceria Schiødte, 1838 (Hymenoptera, Ichneumonidae) from the Oriental Region
No full textLiu, Jing-Xian, Reshchikov, Alexey (2019): A new species of Cylloceria Schiødte, 1838 (Hymenoptera, Ichneumonidae) from the Oriental Region. Zootaxa 4609 (1): 139-148, DOI: 10.11646/zootaxa.4609.1.
Anotated Checklist of Chinese Ensifera: The Gryllacrididae
No full textBian, Xun, Liu, Jing, Yang, Zizhong (2021): Anotated Checklist of Chinese Ensifera: The Gryllacrididae. Zootaxa 4969 (2): 201-254, DOI: https://doi.org/10.11646/zootaxa.4969.2.
Robust stability for nonlinear control: state-space and input-output synthesis
No full textIn this thesis we consider the development of a general nonlinear input-output theory which encompasses systems with initial conditions.Appropriate signal spaces (i.e., interval spaces, extended spaces and ambient spaces) are introduced with some fundamental assumptions to constitute a framework for the study of input-output systems with abstract initial conditions. Both systems and closed-loop systems are defined in a set theoretic manner from input-output pairs on a doubly infinite time axis, and a general construction of the initial conditions (i.e., a state at time zero) is given in terms of an equivalence class of trajectories on the negative time axis. Fundamental properties (such as existence, uniqueness, well-posedness and causality) of both systems and closed-loop systems are defined and discussed from a very natural point of view. Input-output operators are then defined for given initial conditions, and a suitable notion of input-output stability on the positive time axis with initial conditions is given. This notion of stability is closely related to the ISS/IOS concepts of Sontag.A fundamental robust stability theorem is derived which represents a generalisation of the input-output operator robust stability theorem of Georgiou and Smith to include the case of initial conditions; and can also be viewed as a generalisation of the ISS approach to enable a realistic treatment of robust stability in the context of perturbations which fundamentally change the structure of the state space. This includes a suitable generalisation of the nonlinear gap metric. Generalisations of this robust stability result are also extended to finite-time reachable systems and to systems with potential for finite-time escape by extending signals on extended spaces to a wider space (ambient space). Some linear and nonlinear applications are given to show the effects of the robust stability results.We also present a generalised nonlinear ISS-type small-gain result in this input-output structure set up in this thesis, which is established without extra observability conditions and with complete disconnection between the stability property and the existence, uniqueness properties of systems.Connections between Georgiou and Smith's robust stability type theorems and the nonlinear small-gain theorems are also discussed. An equivalence between a small-gain theorem and a slight variation on the fundamental robust stability result of Georgiou and Smith is shown
Study on the Chinese Subfamily Anostostomatinae (Orthoptera: Anostostomatidae IV: One new recorded species Anabropsis (Apteranabropsis) tonkinensis Rehn, 1906
No full textLu, Xiangyi, Liu, Jing, Bian, Xun (2022): Study on the Chinese Subfamily Anostostomatinae (Orthoptera: Anostostomatidae IV: One new recorded species Anabropsis (Apteranabropsis) tonkinensis Rehn, 1906. Zootaxa 5100 (3): 349-360, DOI: https://doi.org/10.11646/zootaxa.5100.3.
Efficient minimal disturbance estimation in estimation based multiple model switched adaptive control
No full textThis paper addresses the problem of efficiently solving the minimal disturbance estimation problems in Estimation based Multiple Model Switched Adaptive Control (EMMSAC) for a large set of linear time-invariant candidate plant models. We show that it is possible to approximate the minimal disturbance measure functional of any member in the original set by only using the minimal disturbance measure functionals for a basic candidate plant models set chosen from the original set via a bank of low-pass, high-pass, and band-pass filters. We also analyse the efficiency of the proposed method
Contribution to the Chinese subfamily Rhaphidophorinae Walker, 1869 (Orthoptera: Rhaphidophoridae: Rhaphidophorinae): One new species of Rhaphidophora
No full textLiu, Jing, Li, Zhimin, Bian, Xun (2021): Contribution to the Chinese subfamily Rhaphidophorinae Walker, 1869 (Orthoptera: Rhaphidophoridae: Rhaphidophorinae): One new species of Rhaphidophora. Zootaxa 5027 (4): 597-599, DOI: https://doi.org/10.11646/zootaxa.5027.4.
Nerode equivalence for continuous-time transfer function matrices
No full textIn this paper we show that a state space realisation in Jordan canonical form for linear multivariable continuous-time systems described by rational transfer function matrices could be obtained in a natural and basic way by using the concept of Nerode equivalence. Both scalar and multivariable cases in the continuous-time setting are discussed. The basic idea of Nerode equivalence is that the state can be identified with a corresponding equivalence class of input. For a linear finite dimensional time-invariant continuous-time system, the zero state is identified with the kernel of certain Hankel operator. This characterisation then led us naturally to the state equations
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