Results 121 to 130 of about 451 (189)

Multifunctional Position and Stiffness Control of Soft Fluidic Actuators Using Supercooled Liquid

open access: yesAdvanced Intelligent Systems, EarlyView.
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

open access: yesAdvanced Intelligent Systems, EarlyView.
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

Unraveling Electrode Surface Chemistry in Determining Interphase Stability and Deposition Homogeneity for Anode‐Free Potassium Metal Batteries

open access: yesAngewandte Chemie, EarlyView.
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

Synthesis, Optical and Singlet Oxygen Generation Properties of Phenazinone‐Based Photosensitizer with 5‐Formyl‐2‐Thienyl Substituents

open access: yesAsian Journal of Organic Chemistry, EarlyView.
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

A Phenazine‐Based Two‐Dimensional Covalent Organic Framework for Photochemical CO2 Reduction with Increased Selectivity for Two‐Carbon Products

open access: yesAngewandte Chemie, EarlyView.
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
wiley   +2 more sources

SCD‐plus features and AD biomarkers in cognitively unimpaired samples: A meta‐analytic approach for nine cohort studies

open access: yesAlzheimer's &Dementia, EarlyView.
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

open access: yesJournal of Graph Theory, Volume 102, Issue 3, Page 458-471, March 2023., 2023
Abstract Let H H be a tree. It was proved by Rödl that graphs that do not contain H Alex Scott, Paul Seymour, Sophie Spirkl
wiley   +1 more source

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