Scientific Research Publishing

Secure Offline: A Hardware-Bound Cryptographic Framework for Software License Validation in Internet Constrained Educational Environments ()

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 ...
IEEE

Real-Time Inertia Estimation and Validation Using PMU Data and the Swing Equation in Power Systems

Abstract: This paper presents a method to estimate power system inertia in real-time using Phasor Measurement Unit (PMU) data and the swing equation. Inertia is essential for maintaining power system ...
Interesting Engineering

Single string pull turns flat designs into 3D structures for modular space habitats

A new single-string method lets flat designs deploy into complex 3D structures, with potential uses in modular space habitats ...
IEEE

A Dual-Frequency Modular Wireless Power Transfer System for Auxiliary Power Supply of Power Electronics Converters

Abstract: In some industrial application scenarios, multiple constant-voltage (CV) outputs with galvanic isolation are required. Selective power transfer among the CV ...

A Tiny Power Module Could Help Solve the World’s Growing Energy Crisis

The world’s energy demand is rising, and NREL’s ULIS power module could help meet it. Demand for energy worldwide is climbing rapidly, driven in part by power hungry data centers that support ...