Abstract: A forward parametric modeling method is proposed to establish 3-D attributed scattering center (ASC) models for dynamic group targets. The main steps include computer-aided design (CAD) ...
Abstract: Unmanned aerial vehicles (UAVs) have numerous applications in reconnaissance, search, and rescue missions. However, searching underwater areas remains a challenge for UAVs. For antisubmarine ...
Stocks: Real-time U.S. stock quotes reflect trades reported through Nasdaq only; comprehensive quotes and volume reflect trading in all markets and are delayed at least 15 minutes. International stock ...
Fatigue can be a sign that your body is low on vitamin D. Children lacking vitamin D can develop rickets, leading to weak bones. Without enough vitamin D, adults are at risk for bone fractures and ...