39 THz spatial filter based on a back-to-back Si-lens system

Back analysis based on SOM-RST system

This paper describes application of information granulation theory, on the back analysis of Jeffrey mine southeast wall Quebec. In this manner, using a combining of Self Organizing Map (SOM) and rough set theory (RST), crisp and rough granules are obtained. Balancing of crisp granules and sub rough granules is rendered in close-open iteration. Combining of hard and soft computing, namely finite...

A Review on Back-to-Back Converters in Permanent Magnet Synchronous Generator based Wind Energy Conversion System

This paper presents a review on the application of back-to-back converters in the field of permanent magnet synchronous generator (PMSG)-based wind energy conversion systems (WECS). The wide applications of the back-to-back converters are power conditioning devices, micro grid, high voltage direct current (HVDC), and renewable energy systems. The intention is to present an overview about the de...

A 39-year-old male with upper back pain.

A 39-year-old immigrant from South-East Asia presented with several months of worsening upper back pain. He described night sweats and weight loss put denied any other complaints. On admission, computed tomography scan showed destruction of the 5th thoracic vertebral body with paraspinous soft tissue mass that narrowed the central canal (Figure 1, upper panel). Decompression surgery was done. S...

Multi-Frequency Control in a Stand-Alone Multi-Microgrid System Using a Back-To-Back Converter

Abstract: A stand-alone multi-microgrid (MMG) system can be formed by connecting multiple stand-alone microgrids (MGs). In the stand-alone MMG system where the frequencies of each MG system are different, a back-to-back (BTB) converter can be used for interconnecting the adjacent MG system. The frequency control performance of the MMG system can be improved by designing the suitable controller ...

On the rigidity of back - to - back top quark pairs