BACKGROUND We assessed the global and regional ventricular septal functions using conventional echocardiography and two-dimensional speckle tracking imaging in children with postoperative multiple ventricular septal defects. METHODS Thirty-six children were studied: 16 with postoperative multiple ventricular septal defects and 20 normal control subjects. In children with multiple ventricular ...

Image super-resolution (SR) serves as a fundamental tool for the processing and transmission of multimedia data. Recently, Transformer-based models have achieved competitive performances in image SR. They divide images into fixed-size patches apply self-attention on these to model long-range dependencies among pixels. However, this architecture design is originated high-level vision tasks, whic...

The design of a fully planar microstrip crossover for beamforming networks is presented. The design starts by using a conventional half-wavelength square patch and two sets of orthogonal feeding lines. Rectangular and circular slots are introduced on the square patch in order to reduce the required area of the patch by 82%. The proposed crossover is fabricated and tested for performance confirm...

In the present work, a new compact microstrip patch antenna has been proposed in stacked configuration. The characteristics of the antenna are obtained in terms of return loss, gain and bandwidth and are compared with the conventional microstrip patch. It is observed that the new proposed configuration reduces the patch area by 66.34% and at the same time enhances the gain and bandwidth signifi...

Abstract A new design of Microsrtip patch fractal antenna for 2.5 GHz is proposed which possess an excellent size reduction possibility with good radiation performance for wireless applications like Wireless Local Area Network (WLAN). The design and simulation results of microstrip patch fractal antenna using Ansoft HFSS is presented which has S11 < -10 dB (VSWR<2). The antenna is designed base...

BACKGROUND Plastic root-foraging responses have been widely recognized as an important strategy for plants to explore heterogeneously distributed resources. However, the benefits and costs of root foraging have received little attention. METHODOLOGY/PRINCIPAL FINDINGS In a greenhouse experiment, we grew pairs of connected ramets of 22 genotypes of the stoloniferous plant Potentilla reptans in...

A new voltage-clamp apparatus for the squid axon has been implemented to enable recording of currents through small areas of axon membrane. The performance of this clamp was tested by recording total sodium currents from perfused axons (I total) and sodium currents from small membrane patches (I patch), which were recorded from inside the axon with an L-shaped pipette. The I patch records, alth...

Improving drug permeability in skin is considered as one of the most important issues for designing new methods of transdermal drug delivery. Consequently, many techniques have been proposed to more effectively deliver drugs across the stratum corneum, including chemical enhancers or physical enhancer techniques, e.g., iontophoresis and ultrasound. Standard hypodermic injection is an effective ...

w w w . i j e c t . o r g InternatIonal Journal of electronIcs & communIcatIon technology 71 Abstract One of the advantages of microstrip patches over conventional antennas is their small size. However, there are many present day applications where even these small radiators are too large. A microstrip antenna incorporated with a single shorting pin is found to provide reduction in overall area...