Development of a quasi time stretch technology for indoor positioning system based on pulse modulated ultra high frequency radio

Data acquisition of high speed signal is a major challenge in developing a high accuracy Indoor Position System (IPS) based on Ultra High Frequency (UHF) Radio. The proposed technology is developed to achieve a high time resolution for Time Difference of Arrival (TDOA) estimation in a hyperbolic position fix IPS. This device works as the interface component embedded in the distributed sensor nodes of the IPS and is dedicated to convert the incoming UHF signal down to low frequency typically less than 1 MHz that enables the use of conventional relative low speed ADC product. The circuit model is simulated in Advance Design System (ADS) environment. Performance of the Wilkinson power combiner is evaluated using High Frequency Structural Simulator (HFSS)

One thousand plant transcriptomes and the phylogenomics of green plants

Abstract: Green plants (Viridiplantae) include around 450,000–500,000 species1, 2 of great diversity and have important roles in terrestrial and aquatic ecosystems. Here, as part of the One Thousand Plant Transcriptomes Initiative, we sequenced the vegetative transcriptomes of 1,124 species that span the diversity of plants in a broad sense (Archaeplastida), including green plants (Viridiplantae), glaucophytes (Glaucophyta) and red algae (Rhodophyta). Our analysis provides a robust phylogenomic framework for examining the evolution of green plants. Most inferred species relationships are well supported across multiple species tree and supermatrix analyses, but discordance among plastid and nuclear gene trees at a few important nodes highlights the complexity of plant genome evolution, including polyploidy, periods of rapid speciation, and extinction. Incomplete sorting of ancestral variation, polyploidization and massive expansions of gene families punctuate the evolutionary history of green plants. Notably, we find that large expansions of gene families preceded the origins of green plants, land plants and vascular plants, whereas whole-genome duplications are inferred to have occurred repeatedly throughout the evolution of flowering plants and ferns. The increasing availability of high-quality plant genome sequences and advances in functional genomics are enabling research on genome evolution across the green tree of life

13Th International Conference On Conservative Management Of Spinal Deformities And First Joint Meeting Of The International Research Society On Spinal Deformities And The Society On Scoliosis Orthopaedic And Rehabilitation Treatment – Sosort-Irssd 2016 Meeting

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