C&EN

Second-Order Nonlinear Optical Responses and Concave–Convex Interactions of Size-Selective Fullerenes/Corannulene Recognition Pairs: The Effect of Fullerene Size

† Institute of Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun 130024, Jilin, China ‡ Institute of Theoretical Chemistry, Jilin University, Changchun 130023 ...
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Accidental discovery could revolutionize computing, cameras, and sensors

The researchers successfully shaped the glass into helices as well as concave and convex mirrors, achieving surfaces so smooth ... “For example, it can be used to generate micro-zoom lenses that could ...
New Scientist

Liquid crystal lenses could make better bifocal glasses

A prototype of bifocal eyeglasses uses liquid crystals and electric fields to switch between modes that aid in nearby and ...
Nature

Promoting Electrochemical Reversibility: Concave versus Convex Electrodes

The Nature Index 2025 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...
IEEE

Pairwise Matching for 3D Fragment Reassembly Based on Boundary Curves and Concave-Convex Patches

Abstract: We present a simple pairwise matching method for 3D fragment reassembly that uses boundary curves and concave-convex patches to accelerate and optimize the matching. Given the boundary ...
IEEE

Combining Convex–Concave Decompositions and Linearization Approaches for Solving BMIs, With Application to Static Output Feedback

Abstract: A novel optimization method is proposed to minimize a convex function subject to bilinear matrix inequality (BMI) constraints. The key idea is to decompose the bilinear mapping as a ...