The Experts below are selected from a list of 312 Experts worldwide ranked by ideXlab platform
De-qi Zhang - One of the best experts on this subject based on the ideXlab platform.
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On Kummer Type Construction of supersingular K3 surfaces in characteristic 2
Pacific Journal of Mathematics, 2007Co-Authors: Ichiro Shimada, De-qi ZhangAbstract:We show that every supersingular K3 surface in characteristic 2 with Artin invariant � 2 is obtained by the Kummer Type Construction of Schroer.
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On Kummer Type Construction of supersingular K3 surfaces in characteristic 2
arXiv: Algebraic Geometry, 2007Co-Authors: Ichiro Shimada, De-qi ZhangAbstract:We show that every supersingular K3 surface in characteristic 2 with Artin invariant less than or equal to 2 is obtained by the Kummer Type Construction of Schroeer.
Anna Gorecka-drzazga - One of the best experts on this subject based on the ideXlab platform.
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Miniature X-Ray Sources
Journal of Microelectromechanical Systems, 2017Co-Authors: Anna Gorecka-drzazgaAbstract:— This paper presents an overview of the design and technology of miniature X-ray sources of various Types, which can be useful in the portable instruments for diagnosis and precision medical therapy, as well as in industrial applications. Several examples of X-ray sources using the pyroelectric and piezoelectric effects and tubes with thermal and field-emission electron sources have been described. A concept of an X-ray source integrated on one chip, made by the use of microengineering techniques, concludes this paper. In this micro-electro-mechanical system-Type Construction, a miniature field-emission electron source with carbon nanotube cathode and a recently developed high-vacuum micropump are applied. [2016-0214] Index Terms— Field emission cathode, MEMS electron source, MEMS micropump, microengineering, miniature X-ray tubes.
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Miniature X-Ray Sources
Journal of Microelectromechanical Systems, 2017Co-Authors: Anna Gorecka-drzazgaAbstract:This paper presents an overview of the design and technology of miniature X-ray sources of various Types, which can be useful in the portable instruments for diagnosis and precision medical therapy, as well as in industrial applications. Several examples of X-ray sources using the pyroelectric and piezoelectric effects and tubes with thermal and field-emission electron sources have been described. A concept of an X-ray source integrated on one chip, made by the use of microengineering techniques, concludes this paper. In this micro-electro-mechanical system-Type Construction, a miniature field-emission electron source with carbon nanotube cathode and a recently developed high-vacuum micropump are applied. [2016-0214]
Ichiro Shimada - One of the best experts on this subject based on the ideXlab platform.
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On Kummer Type Construction of supersingular K3 surfaces in characteristic 2
Pacific Journal of Mathematics, 2007Co-Authors: Ichiro Shimada, De-qi ZhangAbstract:We show that every supersingular K3 surface in characteristic 2 with Artin invariant � 2 is obtained by the Kummer Type Construction of Schroer.
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On Kummer Type Construction of supersingular K3 surfaces in characteristic 2
arXiv: Algebraic Geometry, 2007Co-Authors: Ichiro Shimada, De-qi ZhangAbstract:We show that every supersingular K3 surface in characteristic 2 with Artin invariant less than or equal to 2 is obtained by the Kummer Type Construction of Schroeer.
Dong Yuan - One of the best experts on this subject based on the ideXlab platform.
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Research of New Type DC Circuit Breaker and Its Fast-Watching System
2004Co-Authors: Dong YuanAbstract:Application of control- system based on single chip in DC circuit breaker was expatiated in this paper, and a new Type Construction of DC circuit breaker was introduced as well. The system could realize fast-watching of fault current. The experiment results showed that the scheme was feasible.
Fabian Wirth - One of the best experts on this subject based on the ideXlab platform.
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Capabilityandlimitationofmax-andsum-TypeConstruction ofLyapunovfunctionsfornetworksofiISSsystems ?
2020Co-Authors: Sergey Dashkovskiy, Fabian WirthAbstract:This paper addresses the problem of verifying stability of networks whose subsystems admit dissipation inequalities of integral input-to-state stability (iISS). We focus on two ways of constructing a Lyapunov function satisfying a dissipation inequality of a given network. Their difference from one another is elucidated from the viewpoint of formulation, relation, fundamental limitation and capability. One is referred to as the max-Type Construction resulting in a Lipschitz continuous Lyapunov function. The other is the sum-Type Construction resulting in a continuously differentiable Lyapunov function. This paper presents geometrical conditions under which the Lyapunov Construction is possible for a network comprising n 2 subsystems. Although the sum-Type Construction for general n > 2 has not yet been reduced to a readily computable condition, we obtain a simple condition of iISS small gain in the case of n = 2. It is demonstrated that the max-Type Construction fails to offer a Lyapunov function if the network contains subsystems which are not input-to-state stable (ISS).
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Brief paper: Capability and limitation of max- and sum-Type Construction of Lyapunov functions for networks of iISS systems
Automatica, 2012Co-Authors: Sergey Dashkovskiy, Fabian WirthAbstract:This paper addresses the problem of verifying stability of networks whose subsystems admit dissipation inequalities of integral input-to-state stability (iISS). We focus on two ways of constructing a Lyapunov function satisfying a dissipation inequality of a given network. Their difference from one another is elucidated from the viewpoint of formulation, relation, fundamental limitation and capability. One is referred to as the max-Type Construction resulting in a Lipschitz continuous Lyapunov function. The other is the sum-Type Construction resulting in a continuously differentiable Lyapunov function. This paper presents geometrical conditions under which the Lyapunov Construction is possible for a network comprising n>=2 subsystems. Although the sum-Type Construction for general n>2 has not yet been reduced to a readily computable condition, we obtain a simple condition of iISS small gain in the case of n=2. It is demonstrated that the max-Type Construction fails to offer a Lyapunov function if the network contains subsystems which are not input-to-state stable (ISS).
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On a small gain theorem for networks of iISS systems
Proceedings of the 48h IEEE Conference on Decision and Control (CDC) held jointly with 2009 28th Chinese Control Conference, 2009Co-Authors: Sergey Dashkovskiy, Fabian WirthAbstract:This paper considers networks consisting of integral input-to-state stable (iISS) subsystems and addresses the problem of verifying iISS property of a given network. First, we focus on Construction of continuously differentiable Lyapunov functions, and derive a condition ensuring the iISS of the network comprising n subsystems. Although this approach referred to as the sum-Type Construction has not yet been reduced to an easily computable condition for general n, the n = 2 case recovers the iISS small-gain condition for two subsystems developed recently. Next, in the case of n subsystems, using Lipschitz continuous Lyapunov functions, this paper derives a small-gain condition. It is shown that this second approach referred to as the max-Type Construction fails to offer a Lyapunov function if there exist subsystems which are not input-to-state stable (ISS). The relation between the two formulations is discussed in the case of two ISS subsystems.
