Over the last few decades, there has been a growing interest in all-optical approaches to computing and information processing 1 . All-optical approaches do not suffer from the intrinsic slow response of electronic components and have the potential for signal routing, processing, multiplexing, and demultiplexing with speeds exceeding terahertz THz rates. As is the case for electronic logic gate...

Constructing multi-Terabit switches and routers entirely out of electronic cross-bars require multiple racks of switches and huge number of interconnects. The cost and power consumption of such a system is very high and has a limited scalability. The all-optical switching has the problem of buffering and processing and the construction of multi-terabit switches and routers based on all-optical ...

Modern chip-scale computing system performance is increasingly becoming determined by the characteristics of the interconnection network. Photonic technology has been proposed as an alternative to traditional electronic interconnects for its advantages in bandwidth density, latency, and power efficiency. Circuit-switched photonic network architectures take advantage of the optical spectrum to c...

Optical packet switching has been researched for about two decades, but it has not been deployed in commercial networks yet. Nonetheless, the research on optical packet switching continues as it promises to perform better than electronic hardware. We report on the established results of optical packet switching, and examine the reasons for its current state.

background: adopting information technology (it) systems in an organization is a decision which faces several challenges. this study has been conducted with the aim of analyzing barriers and challenges in application of ict in medical science universities in general and the ilam medical science university in particular. methods: the studied population was the employees of ilam university of med...

Electronic systems became an essential component of our lives. The demand for increased functionality is satisfied by higher integration which, however, make the design process more complex and introduces new problems. These problems must be considered in every step involved in the design of electronic systems. One of these steps is verification checking, whether what is manufactured will work ...

Background: Medication management is a complex process with multiple stages that involves different health care teams. Based on the evidence, an electronic medication management system offers significant benefits, such as reduced medication errors, improved conformity, enhanced time and cost efficiency, and increased patient safety. This study aimed to design and implement an electronic medicat...

We study electronic transport through a ferromagnet normal-metal ferromagnet system and we investigate the effect of hyperfine interaction between electrons and nuclei in the normal-metal part. A switching of the magnetization directions of the ferromagnets causes nuclear spins to precess. We show that the effect of this precession on the current through the system is large enough to be observe...

Saxén, John-Eric: Identification of Switching Systems – An On-line Algorithm. Master’s Thesis, Department of Information Technologies, Åbo Akademi University, 2010. 80 pages. This thesis focuses on the identification of special types of systems, hybrid systems with switching character, which present a new challenge for the research circulating around system identification. A switching identific...

Recent years have witnessed an enormous growth of interest in dynamic systems that are characterised by a mixture of both continuous and discrete dynamics, commonly referred to as hybrid or switching systems. Nevertheless, there is a notable lack of suitable benchmark problems on which to assess and compare competing analysis and design methods. The present paper provides a collection of detail...