The various perturbing structures for generation of circular polarization (CP) in a hexagonal shaped microstrip antenna (HMSA) with patch side length of 20 mm is used to resonate in the Mobile Satellite Service (MSS) band at a centre frequency of 2 GHz. The hexagonal geometry to achieve CP is perturbed in four different ways: first with a rectangular slot at centre, second with two narrow slits...

The form and opener configuration used to apply phosphorus fertilizer can influence its effectiveness crop response. A growth chamber study was conducted examine the response of (canola, wheat, pea grown in rotation) soil P (monoammonium phosphate struvite), spread (narrow versus wide), rate treatments 0, 20, 40, 60 kg P2O5 ha−1 added canola (B. napus) seed-row, followed by wheat without fertil...

A new multiple C-slotted microstrip patch antenna is proposed in the present study. A patch antenna is a wide-beam narrowband antenna. The microstrip patch antenna consists of a very thin metallic strip (patch) placed a small fraction of a wavelength above a ground plane. The patch can be designed in any possible shape and normally made of conducting materials such as copper or gold. This study...

BACKGROUND The suggestion that increased QT dispersion (QTD) is due to increased differences in local action potential durations within the myocardium is wanting. An alternative explanation was sought by relating QTD to vectorcardiographic T-loop morphology. METHODS AND RESULTS The T loop is characterized by its amplitude and width (defined as the spatial angle between the mean vectors of the...

Action perception is selective in that observers attend to and encode certain dimensions of action over others. But how flexible is action perception in its selection of perceptual information? One possibility is that observers consistently attend to particular dimensions of action over others across different contexts. Another possibility, tested here, is that observers flexibly vary their att...

Object. The implantation of interbody fusion cages allows for the restoration of disc height and the enlargement of the neuroforaminal space. The purpose of this study was to compare the extent of subsidence occurring after conventional cage placement compared to a novel wider cage placement technique. Methods. This study is a retrospective evaluation of radiographs of patients who underwent st...

We carry out a multi-probe self-consistency test of the flat $\Lambda$CDM model with aim exploring potential causes reported tensions between high- and low-redshift cosmological observations. divide into two theory regimes determined by smooth background (geometry) evolution matter density fluctuations (growth), each governed an independent set Lambda Cold Dark Matter ($\Lambda$CDM) parameters....