ChatGPT 5.4 is a big spreadsheet fan — and comes with special Excel & Google Sheets tools

ChatGPT is now using its 5.4 Thinking model for deeper reasoning, and it's even better at handling "professional work." ...
IEEE

Parameter Estimation of Multiple Linear Frequency Modulation Signals Sensed by Nyquist Folding Receiver Using Periodic Linear Frequency Modulation Local Oscillator

Abstract: The Nyquist folding receiver (NYFR) is a new ultra-wideband (UWB) sensing structure that can sense signals in an UWB space. Since linear frequency modulation (LFM) signal is widely used in ...

OpenAI launches GPT-5.4 with native computer use mode, financial plugins for Microsoft Excel, Google Sheets

The big headlines on this release are efficiency, with OpenAI reporting that GPT-5.4 uses far fewer tokens (47% fewer on some ...
IEEE

Robust Linear Programming Optimization of Grid-Connected PV Microgrids

Abstract: This paper presents a robust, real-time linear programming (LP) energy management system (EMS) for gridconnected photovoltaic (PV) microgrids with battery storage and flexible loads. The ...