Is Cola Education Legitimate? Do You Really Understand HashMap?

But how many developers understand how HashMap works internally? A few days ago, I read a lot of the source code for java.util.HashMap (Java 7 followed by Java 8) to gain a deeper understanding of ...
GitHub

Double array join in MV not allowing droping collumn in source table

Using double ARRAY JOIN in materialize view is blocking alter drop column on source table. Column is not used by MV. CREATE TABLE tabMT ( `date` Date, `col_to_drop` Int32, `ad.fieldAs` ...
GitHub

Cannot deserialize a nullable array of double.

Cannot deserialize a nullable array of double. #5259 Open satch1960 opened 2 days ago · edited by satch1960 ...
IEEE

Double-polarization Slotted Arrays for Extremely Low Side-lobe Based on Single-ridged Waveguide

Abstract: This paper presents a double-Polarization waveguide slotted arrays for extremely low side-lobe. It consist of rectangular waveguides which can radiate horizontal polarized electromagnetic ...
Frontiers

Advancing glassy carbon microelectrode arrays for neurochemical sensing: impact of double pyrolysis on structure and function

Advancing neural interfaces requires implantable devices capable of long-term electrical and chemical monitoring. “All”-glassy carbon (GC) microelectrode arrays (MEAs), in which both electrodes and ...
WWLP on MSN

The Big E in West Springfield opens with exciting food options

It's opening day of The Big E in West Springfield, with a variety of new food vendors and some old goodies for attendees to try.
IEEE

Adaptive Beamforming with a Double-Cross Array of Dipoles on a Drone

Abstract: Adaptive and reconfigurable beamforming from an array of vertical half-wavelength dipole elements on a drone is considered. The array consists of nine dipole radiators that are located on a ...