IEEE

Mechanism of Conversion Between AC and DC Electrical Variables in LCC Main Circuits During Grid Dynamics Using Time-Varying Amplitude/Frequency Rotating Vectors

Abstract: With the increasing challenges posed by line-commutated converter-based high-voltage direct current (LCC-HVDC) in the era of widespread renewable energy utilization, AC/DC dynamic ...
C&EN

Direct CO 2 Conversion Using Geological Carbonates as Absorbents for an Integrated Carbon Capture–Conversion Strategy

State Key Laboratory of Green Papermaking and Resource Recycling, School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China ...
GitHub

Spark 4.0.1 + Iceberg 1.10.0 - Spark maintenance procedure rewrite_data_files with zOrder fails when using DATE column type

I think what I will describe next is a bug since I searched for info that could explain the behavior and did not find anything. I am running a bunch of Iceberg maintenance procedures with Spark, I ...
Medscape

Medical Guidelines Fail to Convince Parents of Neonatal Circumcision Benefits

Researchers analyzed a national database of US children’s hospital stays from 2012 to 2022. The analysis included all discharges of baby boys aged 0-28 days and excluded babies with bleeding disorders ...
IEEE

Ultra-Wideband and Wide-Angle RCS Reduction of Antenna Array Using Dual-Layer Miniaturized Polarization Conversion Metasurface

Abstract: A miniaturized dual-layer metasurface designed to achieve ultra-wideband and wide-angle radar cross-section (RCS) reduction for antenna arrays is presented in this letter. By arranging ...
News & Record

Greensboro dental practice where child died cited for issues with procedure rooms

A Greensboro ambulatory dental surgical practice where a child died in July has been halted by state health regulators from using three new procedure rooms because they don’t conform to state ...