资讯

Abstract: Curves are presented for the rapid calculation of the ground wave for radio propagation over a spherical earth of arbitrary ground constants, antenna heights, and polarization.
Abstract: In this paper, for a vertically polarized line source in the high-frequency band (3-30 MHz), a detailed analysis of the ground wave propagation over 1-D highly conducting inhomogeneous ...
HOUSTON, Texas (KTRK) -- Saharan dust is on the way out and rain-making moisture is on the way in as our stormy June pattern looks to resume in the new week ahead. We are in for another mild and ...
The ground state potential energy surface of the retinal chromophore of visual pigments (e.g., bovine rhodopsin) features a low-lying conical intersection surrounded by regions with variable ...
Rain and storm chances, along with a few chances for severe weather return. Details here. Read more. Nearly daily storms chances 1-3" of rain on Wednesday alone Very warm this weekend 90s PLANNING ...
After a muggy start with the possibility of low-level clouds, expect another hot and humid day. By the afternoon, expect some sun and clouds with highs into the mid-90s. Heat index values will ...
AUSTIN, Texas — It was another hot and humid day across Central Texas on Friday, and there is plenty more of those conditions in the forecast this weekend and next week. If you are heading to ...
Meanwhile, the US economy is still figuring out the effects of the tariffs ... where trade will be front and center as well as a focus on national security issues. "I'm a tariff person, I've ...
Federal Reserve Chair Jerome Powell said as the central bank held interest rates steady this week that the Fed is still waiting to see the effects of ... trade will be front and center as well ...