How to Edit, Merge, and Split PDFs With Free Online Tools

You don’t need expensive software for basic PDF tasks. In fact, all you need is a handful of free web-based apps.

How to use ChatGPT: A beginner's guide to mastering OpenAI's chatbot in 2026

When you're ready to start your first chat, click or tap New chat, type your prompt in the composer, and press Enter or tap ...
IEEE

Text Entry in Virtual Environments using Speech and a Midair Keyboard

Abstract: Entering text in virtual environments can be challenging, especially without auxiliary input devices. We investigate text input in virtual reality using hand-tracking and speech. Our system ...
IEEE

A 3-D spectral-element method using mixed-order curl conforming vector basis functions for electromagnetic fields

Abstract: A three-dimensional spectral-element method (SEM) based on Gauss-Lobatto-Legendre polynomials is proposed to solve vector electromagnetic-wave equations. To suppress spurious solutions, ...
C&EN

Anticancer, Antioxidant, and Catalytic Activities of Green Synthesized Gold Nanoparticles Using Avocado Seed Aqueous Extract

Nanobiotechnology Research Group, Department of Biotechnology, University of the Western Cape, Bellville 7535, South Africa DSI/Mintek Nanotechnology Innovation Centre, Biolabels Node, Department of ...
GitHub

A curated list of Rust code and resources.

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GitHub

KSS: Korean String processing Suite

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