The study is devoted to the creation of a dataset protein structural motifs 3β-corner type. relevance and importance creating 3β-corners determined by fact that this structure can be an embryo or ready-made block in process folding, also act as independent object research field biology. contains 3β-corner-like structures are geometrically similar 3β-corners. consists 45,896 structures. For each...

A multistage approach to gray-level corner detection is proposed in this paper, which is based on fast corner extraction using the Plessey corner detector combined with CMOS image acquisition technologies and localization refinement using a spatial subpixel analysis approach. The proposed corner detector detects corners as the intersection points of the involved edges, only by using a small nei...

A simple non-parametric approach for detecting corner points using mathematical morphology is proposed in this paper. The proposed method has two stages, the first stage deals with the extraction of significant corner clusters from an image, while the second stage concentrates on detection and localization of true corner points from the extracted corner clusters. The proposed method unlike othe...

In this work, a transition process in hypersonic flow over cold-wall compression ramp is studied using direct numerical simulation (DNS) and global stability analysis (GSA). The free-stream Mach number the Reynolds based on flat-plate length are 7.7 $8.6 \times 10^5$ , respectively. shock-induced pressure rise causes boundary layer to separate flat plate, forming separation bubble around corner...

This paper describes a statistical signal-processing method for exploiting narrowband bistatic RF measurements to detect and track moving people (hereafter referred to as "dismounts"). In our approach, RF measurements are made by a constellation of narrowband radar units, arranged around a surveillance region. There are several benefits of narrowband radar in this application, which we describe...

The design of a low noise figure (NF), high conversion gain (CG) double-balanced, Gilbert-cell mixer is presented. Since the noise figure of the RF CMOS mixer is strongly affected by flicker noise (1/f), a dynamic current injection technique is used to reduce the flicker noise corner frequency. The current injection circuitry comprises 3 pMOS to inject current pulses at the switching instants. ...

(1) MICHAEL LENNARD 1923-1986 In his Obituary to Michael Lennard printed in our August number Donald Ratcliffe referred to his love of art and literature. He was a brilliant parodist and we reprint below with kind permission two excerpts from a contribution he made as a student to the 'Black Bag'. The theme was 'hernia' and readers will recognise echoes of Browning's 'Home thoughts from abroad'...

We will never have enough data, so we must do the best with what we acquire. Systematic reviews and meta-analyses of clinical trials represent one approach to maximizing the usefulness of clinical data. The Cochrane Collaboration thrives on the analyses of the results of tens of thousands of controlled trials in its database. The Collaboration bears the name of the British epidemiologist Archib...