End-to-end Modeling and Analysis for Terahertz Wireline Transmission System with Solid Polymer Fiber

Author(s):  
Yiqin Wang ◽  
Weijun Gao ◽  
Chong Han
2021 ◽  
Author(s):  
Max Jonas Friese

Based on advances in scheduling analysis in the 1970s, a whole area of research has evolved: formal end-to-end latency analysis in real-time systems. Although multiple approaches from the scientific community have successfully been applied in industrial practice, a gap is emerging between the means provided by formally backed approaches and the need of the automotive industry where cyber-physical systems have taken over from classic embedded systems. They are accompanied by a shift to heterogeneous platforms build upon multicore architectures. Scien- tific techniques are often still based on too simple system models and estimations on important end-to-end latencies have only been tightened recently. To this end, we present an expressive system model and formally describe the problem of end-to-end latency analysis in modern automotive cyber-physical systems. Based on this we examine approaches to formally estimate tight end-to-end latencies in Chapter 4 and Chapter 5. The de- veloped approaches include a wide range of relevant systems. We show that our approach for the estimation of latencies of task chains dominates existing approaches in terms of tightness of the results. In the last chapter we make a brief digression to measurement analysis since measuring and simulation is an important part of verification in current industrial practice.


2011 ◽  
Vol 236-238 ◽  
pp. 750-754 ◽  
Author(s):  
Zhen Lin ◽  
Chang Hui Wang ◽  
Yu Liu

A simple model specific to static water feed solid polymer electrolyte (SPE) water electrolysis cell is constructed containing Butler-Volmer equation for calculating electrode over potentials, Nernst equation for calculating thermodynamic voltage and water balance equation for solving membrane water content. Based on the model, the water content distribution of the membrane is obtained, and the operating current density limitation is shown. It is indicated that the operating current density limitation of static water feed SPE electrolysis cell is obviously lower than that of normal SPE electrolysis cell.


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