Results 211 to 220 of about 16,554 (257)

Observation of Dislocation Bound States and Skin Effects in Non-Hermitian Chern Insulators. [PDF]

Adv Mater
Zhong JX, Roy B, Jing Y.
europepmc   +1 more source

Identification and quantification of irreversibility in stochastic systems.

Phys Chem Chem Phys
Ghosal A, Bisker G.
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Protection of passive optical network by using ring topology

2012 35th International Conference on Telecommunications and Signal Processing (TSP), 2012
This article proposes an innovative method of passive optical networks' protection by using ring topology. Passive optical networks (PONs) are typically used in modern high-speed access networks, but there are also several specific applications, such as in business, office, army or science sector, which require a complex protection and backup system ...
Pavel Lafata
exaly   +2 more sources

Log-domain filtering by simulating the topology of passive prototypes

IEEE Transactions on Circuits and Systems Part 1: Regular Papers, 2005
A systematic method for designing log-domain filter structures that simulate the topology of the corresponding passive prototypes is introduced in this paper. This has been achieved by transposing the i-/spl upsi/ characteristic equation of each passive element in the linear domain, to the corresponding one in the log domain. The transposition has been
Costas Psychalinos
exaly   +2 more sources

Experimental Verification of Passive Optical Network With Ring Topology

Microwave and Optical Technology Letters, 2013
ABSTRACTToday, tree or hybrid tree‐star topologies are mostly used for passive optical networks in practice. However, these topologies are significantly vulnerable against the failures of a central optical line termination (OLT) unit. Recently, an innovative idea about forming a simple ring topology by using asymmetric passive splitters together with ...
Jiří Vodrážka, Pavel Lafata
exaly   +2 more sources

Queuing Network Topology Inference Using Passive Measurements

2021 IFIP Networking Conference (IFIP Networking), 2021
In this work, we revisit a classic problem of inferring a tree topology from end-to-end measurements originated by a single source, with two critical differences: (i) instead of relying on measurements with specific correlation across paths that often require active probing, we do not rely on any correlation and can thus utilize passive measurements ...
Yilei Lin, Ting He 0001, Guodong Pang
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Topology optimization of a passive thermal actuator

Fifteenth International Symposium on Quality Electronic Design, 2014
This paper presents a topology-optimized passive thermal micro actuator with large thermal deflection. The actuator relies on different coefficients of thermal expansion of an active material as well as the substrate and temperature changes of the surrounding environment. COMSOL Multiphysics is used for the topology optimization algorithm.
Harald Steiner, Wilfried Hortschitz, Franz Keplinger, Thilo Sauter   +3 more
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Topological conditions for passive switches in switching converters

2007 18th European Conference on Circuit Theory and Design, 2007
This paper presents an explicit expression for the product (DC power) of an averaged current and an averaged voltage of a switch in switching DC-DC converters and also derive conditions for it to be replaced by a diode (a passive switch).
Masato Ogata, Tetsuo Nishi
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Synchronization of a class of networked passive systems with switching topology

2007 46th IEEE Conference on Decision and Control, 2007
This paper considers the output synchronization of a class of networked agents. Each agent is a passive system. Local information, used by each agent to adjust its movement, forms a network with switching adjacent topology. First, we consider the asymptotic stability of nonlinear time-varying switched systems by using multiple Lyapunov function.
Yahong Zhu, Daizhan Cheng, Xiaoming Hu 0001   +2 more
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An investigation on the selection of filter topologies for passive filter applications

IEEE PES General Meeting, 2009
Passive filters have been a very effective solution for power system harmonic mitigation. These filters have several topologies that give different frequency response characteristics. The current industry practice is to combine filters of different topologies to achieve a certain harmonic filtering goal.
A.B. Nassif, null Wilsun Xu, W. Freitas
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