scholarly journals Migration from SERCOS III to TSN - Simulation Based Comparison of TDMA and CBS Transportation

10.29007/c5td ◽  
2018 ◽  
Author(s):  
Sebastian Szancer ◽  
Philipp Meyer ◽  
Franz Korf
Keyword(s):  
Multiple Access ◽  
Simulation Models ◽  
Time Division Multiple Access ◽  
The Other ◽  
Industrial Plants ◽  
Critical Data ◽  
Wide Range ◽  
Simulation Based ◽  
The One ◽  
Time Division

The communication infrastructure of industrial plants, vehicles and many other appli- cations must provide more and more bandwidth, sometimes with strict timing requirements for the transmission of critical data. Time-Sensitive Networking (TSN) is a set of IEEE 802 Ethernet sub-standards that meet these requirements for a wide range of applications and communication requirements. Market relevance of TSN increases in different sectors. On the other hand, SERCOS III is an established Ethernet-based communication standard, which is used in particular in the field of industrial plants. With cost and limitations of SERCOS III in mind, this paper examines the migration from SERCOS III Time Division Multiple Access (TDMA) communication on the one side to Credit Based Shaping (CBS) communication on the other side. TSN supports both mechanisms. The analyses are per- formed with OMNeT++ simulation models. Migration recommendations are derived from the comparison of TDMA- and CBS-based transportation of SERCOS III traffic.

scholarly journals Opisy interiekcji w wybranych XIX-wiecznych słownikach języka polskiego

LingVaria ◽  
2021 ◽  
Vol 31 (1) ◽  
pp. 11-24
Author(s):  
Marek Kaszewski
Keyword(s):  
19Th Century ◽  
The Other ◽  
Functional Variants ◽  
Wide Range ◽  
The One ◽  
The 19Th Century ◽  
Linguistic Units

Descriptions of Interjections in Selected Polish Dictionaries from 19th Century The author of the text analyses interjections present in three Polish dictionaries from the 19th century: the dictionaries by S.B. Linde, J.S. Bandtkie and A. Osiński, which are a part of a larger linguistic collection created in order to study and describe historical Polish interjections. The article takes into account the internal diversity of the historical class of interjections in the light of the lexicographers’ attempts to describe such units. Our attention is drawn to the lack of graphical normalization of interjections in the dictionaries, as well as the inconsistency of their marking and definition on the one hand, and the wide range of functional variants on the other. Differences in the manner of presentation of interjections in these dictionaries are also taken into account. Moreover, the author emphasizes the fact that they include a large number of animal-related (hunting) interjections. The study of the dictionary materials confirmed that their authors did not work out a method of a lexicographical description of these linguistic units.

Epistemic Opacity

2019 ◽  
pp. 98-131
Author(s):  
Johannes Lenhard
Keyword(s):  
Mathematical Models ◽  
Simulation Models ◽  
Scientific Understanding ◽  
The Other ◽  
Weak Version ◽  
Simulation Based ◽  
Lower Standard ◽  
Epistemic Standards ◽  
Epistemic Opacity ◽  
Experimental Runs

This chapter shows that—and how—simulation models are epistemically opaque. Nevertheless, it is argued, simulation models can provide a means to control dynamics. Researchers can employ a series of iterated (experimental) runs of the model and can learn to orient themselves within the model—even if the dynamics of the simulation remain (at least partly) opaque. Admittedly, such an acquaintance with the model falls short of the high epistemic standards usually ascribed to mathematical models. This lower standard is still sufficient, however, when the aim is controlled intervention in technological contexts. On the other hand, opacity has to be accepted if the option for control is to remain in any way open. This chapter closes by discussing whether epistemic opacity restricts simulation-based science to a pragmatic—“weak”—version of scientific understanding.

Time division multiple access scheduling strategies for emerging vehicular ad hoc network medium access control protocols: a survey

2019 ◽  
Vol 70 (4) ◽  
pp. 595-616 ◽  
Author(s):  
Abubakar Bello Tambawal ◽  
Rafidah Md. Noor ◽  
Rosli Salleh ◽  
Christopher Chembe ◽  
Mohammad Hossein Anisi ◽  
...  
Keyword(s):  
Access Control ◽  
Medium Access Control ◽  
Ad Hoc Network ◽  
Multiple Access ◽  
Ad Hoc ◽  
Time Division Multiple Access ◽  
Medium Access Control Protocols ◽  
Medium Access ◽  
Scheduling Strategies ◽  
Time Division
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