Duplex Mikaelian and Duplex Maxwell’s Fish-Eye Lenses

Full-Duplex Relaying with Half-Duplex Relays

We consider “virtual” full-duplex relaying by means of half-duplex relays. In this configuration, each relay stage in a multi-hop relaying network is formed by at least two relays, used alternatively in transmit and receive modes, such that while one relay transmits its signal to the next stage, the other relay receives a signal from the previous stage. With such a pipelined scheme, the source ...

Depth Estimation using Stereo Fish-Eye Lenses

This paper presents the estimation of depth in an indoor, structured environment based on a stereo setup consisting of two fish-eye lenses, with parallel optical axes, mounted on a robot platform. The use of fish-eye lenses provides for a large field of view to estimate better the depth of features very close to the lens. To extract significant information from the fish-eye lens images, we firs...

Duplex DNA

This article describes the sequence-specific isolation and purification of intact double-stranded DNA (dsDNA) by oligonucleotide/PNA-assisted affinity capture (OPAC). The OPAC assay is based on selective tagging of a DNA duplex by biotinylated oligodeoxyribonucleotide (ODN) through formation of a so-called PD-loop. The PD-loop is assembled with the aid of a pair of PNA “openers”, which allow se...

Appendix Vermiformis Duplex.

Duplication of the alimentary tract is uncommon but duplication of the appendix is rare. Basu et al. (1959), in reporting 28 cases of duplication of the alimentary tract, had no case of appendix duplex. Picoli ( 1892) reported the first case of apendix duplex in a female patient who had associated anomalies of duplication of the entire large bowel, two uteri with two vaginae, ectopia vesicae an...

Duplex Stability & Nuclease Resistance