Nonblocking Similarity Control of Nondeterministic Discrete Event Systems under Event and State Observations

Yamada, Hiroki; TAKAI, Shigemasa

doi:10.1587/transfun.e101.a.328

Cited by 5 publications

(2 citation statements)

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“…The supervisory control theory, originating from the work of Ramadge and Wonham [1], provides a framework for control of discrete event systems. In this theory [1,2,3,4,5,6,7,8,9,10,11], both plants and specifications are modeled as (non)deterministic automata. A supervisor controller, called supervisor, is also modeled as an automaton, which exerts control over a plant such that the supervised system runs as desired.…”

Section: Introductionmentioning

confidence: 99%

“…In the development of supervisory control theory, various notions (e.g. language equivalence [1], bisimulation [7,11] and simulation [3,4,5,6,8,9,10]) have been adopted to formalize what it means that the behavior of a supervised system meets the requirements specified by a specification. Among them, the notion of simulation is suitable for handing situations with nondeterministic transitions and uncontrollable events.…”

Section: Introductionmentioning

confidence: 99%

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School of Teacher, Nanjing Xiao Zhuang University, Nanjing, 210000, China

Wang¹

2017

Advances in Psychological Science

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The nuclide 14 C can be produced in the atmosphere by high energy particles and γ-rays from high-energy phenomena. Through the carbon cycle, some of 14 CO 2 produced in the atmosphere can be retained in annual tree rings 1, 2 . Four events of rapid increase of the 14 C content occurred in AD 775, AD 994, BC 660 and BC 3371 were found 3-6 . Recently, the data of Jull et al. (2020) was inconsistent with our records around BC 3371. We measured our sample again and found the 14 C records are consistent with the value in Wang et al. (2017). Therefore, our 14 C records are robust. The inconsistency may be caused by the difference of calendar ages for the wood samples, or the physical origin of the event. First, crossdating on ring width can be performed only between trees whose growth has the same environmental conditions. Because the master tree-ring for dendrochronology is lack for Chinese trees. The master tree-ring from California has to be used. Therefore, the calendar ages derived from dendrochronology may be not precise. Second, the 14 C even may be not global. One evidence

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