Results 121 to 130 of about 451 (189)
Multifunctional Position and Stiffness Control of Soft Fluidic Actuators Using Supercooled Liquid
This work explores the use of supercooled liquid as a multifunctional working fluid for soft actuators to allow independent control of position and stiffness; the solution is used to both inflate the elastomer chambers while in liquid state and to achieve a dramatic increase in stiffness (up to 13 times) with rapid, reversible crystallization.
Hoseung Seo, Michael T. Tolley
wiley +1 more source
Decreasing the Cost of Morphing in Adaptive Morphogenetic Robots
Shape‐morphing propulsive limbs enhance locomotion across land‐to‐water transitions, but prior designs rely on thermally responsive components, coupling performance to environmental temperature. This study introduces a pressure‐responsive mechanism that reduces morphing energy costs, enables rapid transitions, and minimizes failure modes.
Luis A. Ramirez+3 more
wiley +1 more source
We disclose the effect of the current collector's surface functionality on determining the reversibility of anode‐free potassium metal batteries. The current collector with a lower Fermi level suppresses the electrolyte decomposition and induces an inorganic‐rich thin SEI. Additionally, the current collector with potassiophilic species creates abundant
Zhenlu Yu+5 more
wiley +2 more sources
Phenazinone chromophore incorporating a carbonyl group into the skeleton is recently found to be a new‐type halogen‐atom‐free‐photosensitizer possessing superior ability in singlet oxygen (1O2) generation. In this work, we have designed and developed the derivative with two 5‐formyl‐2‐thienyl substituents which is expected to lead to improvement of the
Hiroto Tsuyama+2 more
wiley +1 more source
The catalytic advantages of covalent organic frameworks (COFs) for sustainable CO₂ utilization have been demonstrated by the photocatalytic reduction of CO₂ by a redox‐active, phenazine‐based COF (Phen‐COF). Phen‐COF efficiently converts CO₂ into formate, oxalate, and carbon monoxide under light irradiation, achieving significantly higher yields than a
Zoheb Hirani+3 more
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Abstract INTRODUCTION Specific features of subjective cognitive decline (SCD‐plus) have been proposed to indicate an increased risk of preclinical Alzheimer's disease (AD). However, few studies have examined how these features relate to AD biomarkers in cognitively unimpaired (CU) older adults. METHODS Meta‐analyses were performed using cross‐sectional
Elizabeth Kuhn+38 more
wiley +1 more source
Polynomial bounds for chromatic number. I. Excluding a biclique and an induced tree
Abstract Let H be a tree. It was proved by Rödl that graphs that do not contain H
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