Test observations show that the deployable 4-band dipoles degrade VLA antenna sensitivity by approximately 7% at L-band, 8% at C-band, and 6% at X-band. The loss at higher frequencies is unknown, but is expected to be less. The dipoles also introduce a variability of 1 – 3% in the antenna cross-polarization at L-band only. This variability will degrade L-band polarimetry capabilities, limiting ...

The past decade has seen impressive progress in the detection of $z>7$ galaxies with Hubble Space Telescope, however little is known about their properties. James Webb Telescope will revolutionise high-$z$ field by providing NIR (i.e., rest-frame optical) data unprecedented depth and spatial resolution. Measuring galaxy quantities such as resolved stellar ages or gas metallicity gradients tradi...

Purgatory is a metal band from Jakarta that creates Music contains Message of da'wah in it. released an album entitled "7:172" which describes the meaning letters and verses holy book Quran. Some songs On have lyrics diction contain elements Da'wah or conveying teachings Islamic religion to listener wise Way. This study Aims find Out how Communication effect axle medium for proselytizing. The R...

This study aims to describe (1) how the form of grammatical cohesion in lyrics song "Kita" Group Band Sheila on 7, and (2) lexical 7. type research is descriptive qualitative. . The data fragments which contains aspects cohesion. collection technique used listening note-taking technique. analysis Miles Huberman interactive model. results showed 1) there were references (references), substitutio...

in this paper, a photonic crystal waveguide with point defects and lattice constant perturbations of +5%, -5% are being investigated. firstly waveguide structures with constant and specific parameters are being studied and photonic band gap diagrams for te/tm modes are depicted; then pulse propagation in the frequencies available in the band gap are shown. after that, effects of parameters like...

Abstract The exoplanetary system of HR 8799 is one the rare systems in which multiple planets have been directly imaged. Its architecture strikingly similar to that solar system, with four imaged giant surrounding a warm dust belt analogous Asteroid Belt, and themselves being surrounded by cold analog Kuiper Belt. Previous observations this ALMA Band 6 (1.3 mm) revealed its inner edge, but anal...