The system employs HMAC-SHA256 (Hash-based Message Authentication Code using SHA-256) for license integrity verification. SHA-256 refers to the Secure Hash Algorithm producing 256-bit hash values (see ...

Abstract: Silicon-based, single-photon avalanche diodes (SPADs) can realize extremely weak light detection and are widely used in marine LiDAR, space exploration, fluorescence imaging, and other ...

I set up a simple steady state heat transfer problem in WELSIM, but the computed results do not match the well-established analytic results. Here is the example problem, as given in Fundamentals of ...

Experienced ICAO English Language Proficiency Instructor for pilots and ATCOs and conference interpreter who is passionate about facilitating effective communication within aviation-related businesses ...

Editor’s Note: This story was updated with new details from TSA. (NEXSTAR) — If you have plans to fly in 2026 but don’t have a REAL ID, be prepared: you may have to fork over $45 before you can pass ...

This package is in early development and is not yet ready for production use. It is currently being tested and may undergo significant changes.

The Transportation Security Administration (TSA) has introduced a new program called the Modernized Alternative Identity Verification. This is an operational adaptation which builds upon current ...

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