Abstract: The purpose of this paper is to explore the optimization strategy of crop cultivation through random number method and mixed integer planning model. Firstly, taking North China as the ...

Amazon TV Fire Stick users have been left baffled after a 'random app' has appeared on their devices - but this is why. The app is said to have shown up on some Brits' devices but many of them have ...

// you may not use this file except in compliance with the License. // You may obtain a copy of the License at // https://www.apache.org/licenses/LICENSE-2.0 #include ...

Abstract: The 5G communication using 24.25-29.5 and 37-43.5 GHz millimeter-wave bands requires agile local oscillators with at least 19.5% and 16.1 % frequency tuning range (FTR). A significant ...