Master vector derivatives in polar coordinates with this clear physics tutorial! Learn step-by-step how to compute derivatives, understand radial and angular components, and apply them to mechanics ...

Python functions for converting polar stereographic coordinates. This repository contains conversion functions between longitude/latitude and generic x, y (km) coordinates. There are also conversion ...

Abstract: Non-blind rotary motion deblurring (RMD) aims to restore a latent image from its blurred image. Since the integration path of rotary motion blurring (RMB) is a circle, RMD is modelled as a ...

Abstract: For precision planar contouring control systems widely applied in industrial scenarios, additional contouring control action is usually added to two axes respectively to enhance contouring ...

Paper: 3D reconstruction of spatial transcriptomics with spatial pattern enhanced graph convolutional neural network Keywords: Spatial transcriptomics, 3D reconstruction algorithm, graph convolutional ...

Windchill temperatures as low as minus 30 degrees are a risk to life, forecasters said.

A severe winter storm that brought crippling freezing rain, sleet and snow to a large part of the U.S. in late January 2026 left a mess in states from New Mexico to New England. Hundreds of thousands ...

Intense cold is settling in over the northeastern United States after winter storms brought snow and ice. Will the bitter ...

A late January 2026 winter storm left more than snow and ice in its wake.

Dalhousie researchers have revealed how Arctic aquifers—permeable layers of the ground that store and transmit water to rivers, lakes and terrestrial ecosystems—behave today and how these vital ...