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Time Arc Petri Nets and Their Analysis
2009 Ninth International Conference on Application of Concurrency to System Design, 2009We propose to extend time arc Petri nets by associating with each transition a strong or a weak firing semantics. The proposed model includes the semantics of existing time Petri nets where time intervals are associated with places, transitions and arcs in their weak and strong semantics.
Hind Rakkay +2 more
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Tracking Emotions over Time (the “ARC”)
2021The primary goal for this session is for clients to explore and learn how emotional experiences unfold. This allows clients to learn from their emotional experiences and how these experiences can influence their later behaviors and emotions. During this session, clients learn the steps that unfold over time in emotions: antecedent (A, what happened ...
Heather Thompson-Brenner +5 more
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Possibilities of influencing vacuum arc evaporation by time-dependent arc current
Surface and Coatings Technology, 1995Abstract This paper describes a new “modified pulse arc evaporation process” which represents a combination of both d.c. and pulse cathodic arcs. The aim is to give a comparative overall view. The paper reports on measurements of spot movement on the target, arc voltage response and ion current under different electric conditions, such as current ...
M. Ellrodt, H. Mecke
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Soundness of Timed-Arc Workflow Nets
2014Analysis of workflow processes with quantitative aspects like timing is of interest in numerous time-critical applications. We suggest a workflow model based on timed-arc Petri nets and study the foundational problems of soundness and strong (time-bounded) soundness.
José Antonio Mateo +2 more
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Just for fun: from arc to time and time to arc
The Arithmetic Teacher, 1967Some units in the arithmetic, social studies, and science curriculum areas present concepts of meridians and parallels, rotation and revolution, and differences in time zones around the globe. Learning about time zones can be a frustrating experience both for teachers and children unless concepts of arc and time are thoroughly understood.
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Verification of Timed-Arc Petri Nets
2011Timed-Arc Petri Nets (TAPN) are an extension of the classical P/T nets with continuous time. Tokens in TAPN carry an age and arcs between places and transitions are labelled with time intervals restricting the age of tokens available for transition firing.
Jacobsen, Lasse +3 more
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Time dependence of vacuum arc parameters
IEEE Transactions on Plasma Science, 1993Time-resolved investigations of the expanded plasma of vacuum arc cathode spots are described, including the study of the ion charge state distribution, the random cathode spot motion, and the crater formation. It was found that the ion charge state distribution changes over a timescale on the order of hundreds of microseconds.
Anders, A. +3 more
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Real-time imaging for arc welding
International Journal of Computer Integrated Manufacturing, 1990Abstract ESPRIT (CIM) Project 9 has taken automated welding systems as instances of 'machines' for which have been developed local, intelligent, corrective systems. Two widely different systems have been studied: single-pass welding, representative of the thin-sheet/high-volume industry (e.g.
D. N. WALLER, C. J. FOSTER, R. WAGNER
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Investigation on change laws of arc burning time of the arc plasma
2009 IEEE Conference on Electrical Insulation and Dielectric Phenomena, 2009Arc burning time is the time interval from arc burning until arc quenching, which is one of the main symbol parameters of the arc plasma characteristic. As the length of arc burning time can do great influence on the arc energy and the two-phase change process of the break arc directly, it is significant for us to do some researches on its influence ...
Zang Chunyan +5 more
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