This document describes the Ethernet Automatic Protection Switching (EAPS) (tm) technology invented by Extreme Networks to increase the availability and robustness of Ethernet rings. An Ethernet ring built using EAPS can have resilience comparable to that provided by SONET rings, at a lower cost and with fewer constraints (e.g., ring size).

The tense and lax vowels of German were compared, based on an analysis of the duration, amplitude and velocity characteristics of lip and tongue movement. This study examined firstly whether they show different patterns of compression over changes in speech rate, and secondly whether velocity profiles would reveal evidence of different underlying control mechanisms. CVC movements were segmented...

The paper presents an example of the message protocol designed for programmable controllers communication in local area network. The design of communication module based on Intel 8344 (RUPI) microcontroller is briefly described, as well as the software support for master and slave nodes and host computers. The communication protocol based upon SDLC standard is implemented starting from the data...

Tourism enterprises communicate with their potential customers through various communication channels including call centers. The conversation between travel counselors and the tourists can be seen as one type of directed information search. The analysis of the records of caller dialogue indicates that travelers mainly search information through two simple heuristics: search by location (SBL) a...

This paper introduces a kind of measurement method of the displacement for the liquid level by the use of the laser triangulation and the angular displacement tracking. Based on the principle of the laser reflection and the principle of the source synchronous tracking, according to the triangulation method and the optoelectronic matrix imaging technology, it realize the corresponding relationsh...

Asynchronous designs have the potential to be robust with respect to changes in the physical environment. They also appear to consume less power and provide better performance compared to their synchronous counterparts. In this work, synchronous and asynchronous implementations of the modular multiplication that is the major part of the RSA algorithm is presented at the transistor level. Total ...

We construct three new signatures and prove their securities without random oracles. They are motivated, respectively, by Boneh and Boyen [9]’s, Zhang, et al. [45]’s, and Camenisch and Lysyanskaya [14]’s signatures without random oracles. The first two of our signatures are as short as [9, 45]’s state-of-the-art short signatures, and are 17% shorter if the pairings in use admits a Verheul homom...

Embedded Systems Group Department of Computer Science Doktor der Ingenieurwissenschaften Model-based Design of Embedded Systems by Desynchronization by Yu Bai In this thesis we developed a desynchronization design flow in the goal of easing the development effort of distributed embedded systems. The starting point of this design flow is a network of synchronous components. By transforming this ...

We present a formal model for concurrent systems. The model represents synchronous and asynchronous components in a uniform framework that supports compositional (assume-guarantee) and hierarchical (stepwise-refinement) design and verification. While synchronous models are based on a notion of atomic computation step, and asynchronous models remove that notion by introducing stuttering, our mod...