Update (2025/10/31): Incorporated QOJ OCR data from @cjwen6. Thanks a lot for the contribution! Also added HTTPS. Simplify the statement & remove background by prompting LLM. Embed the simplified ...

ABSTRACT: Darcy’s law is the fundamental equation describing the flow of a fluid through a porous medium. Combined with the principle of mass conservation, it leads to the diffusion Equation (e.g., ...

The editorial board is a group of opinion journalists whose views are informed by expertise, research, debate and certain longstanding values. It is separate from the newsroom. Thirteen years ago, no ...

Abstract: In this article, a collision-free elliptical target encircling coordination with an improved convergence is constructed for a colony of unmanned aerial vehicles (UAVs). First, an enhanced ...

Abstract: The intensity gradient of light represents the most important property for optical tweezers to manipulate small particles, which is known to produce a conservative optical force that is ...

SOLE Fitness releases a new guide comparing treadmills and ellipticals in terms of their suitability for individuals with joint problems seeking low-impact cardiovascular exercise. The release comes ...

Five years ago, mathematicians Dawei Chen and Quentin Gendron were trying to untangle a difficult area of algebraic geometry involving differentials, elements of calculus used to measure distance ...