Results 71 to 80 of about 3,921 (240)

Energy Absorption Characteristics of Corrugated Sandwich Panels with Embedded Negative Poisson's Ratio Structure

open access: yesTaiyuan Ligong Daxue xuebao
[Purposes] In this paper, a double corrugated sandwich panel with embedded negative Poisson's ratio structure (DCSP-NPR) is proposed to study its energy absorption characteristics.
WANG Fei   +4 more
doaj   +1 more source

Hydrogel‐Based Airway‐on‐Tube With Perfusable Endothelial Lumen and Outward Epithelialization

open access: yesAdvanced Materials, EarlyView.
A hydrogel‐based airway‐on‐tube platform featuring a perfusable endothelial lumen and outward epithelialization is presented. The system supports primary human bronchial epithelial and lung microvascular endothelial coculture under air‐liquid interface conditions.
Ali Doryab   +8 more
wiley   +1 more source

Rational Tuning of Hygroscopic Oscillation of Stacked Nanoflake Assemblies for Continuous Ambient Energy Harvesting

open access: yesAdvanced Materials, EarlyView.
Stacked nanoflake assembly (SNA) membranes can oscillate autonomously, offering opportunities for soft actuation and energy harvesting. This work uncovers the physical mechanism behind the sustained oscillation of SNA membranes in gradient humidity and identifies three governing dimensionless parameters, enabling rational design for optimizing SNA ...
Zijing Zhang   +5 more
wiley   +1 more source

DYNAMIC CRUSHING OF HONEYCOMBS WITH A NEGATIVE POISSON’S RATIO—A FINITE ELEMENT STUDY

open access: yesJixie qiangdu, 2016
The deformation modes and energy absorption properties of honeycombs with a negative Poisson’s ratio under inplane dynamic crushing were studied by means of finite element simulation in this paper.
LU ZiXing, LI Kang
doaj  

Research on the Mechanical Properties of Elliptical Negative Poisson’s Ratio Structures

open access: yesBuildings
A negative Poisson’s ratio structure has special deformation behavior and energy absorption characteristics, and is a new structure with broad application prospects. However, most of the current research is still at the micro theoretical level, and there
Ming Xie   +5 more
doaj   +1 more source

Stretchable and negative-Poisson-ratio porous metamaterials

open access: yesNature Communications
Abstract Highly stretchable porous materials are promising for flexible electronics but their fabrication is a great challenge. Herein, several kinds of highly stretchable conductive porous elastomers with low or negative Poisson’s ratios are achieved by uniaxial, biaxial, and triaxial hot-pressing strategies.
Xiaoyu Zhang   +10 more
openaire   +3 more sources

Soft Skins With Reversible Thickness Morphing: Materials, Mechanisms, and Applications

open access: yesAdvanced Materials, EarlyView.
Evolution of electronic skin (e‐skin) technologies toward adaptive, multifunctional soft skins. Phase I highlights early rigid and discrete sensory interfaces. Phase II shows the transition toward flexible, stretchable, and large‐area e‐skin. Phase III captures the emergence of computational e‐skin.
Oliver Ozioko   +2 more
wiley   +1 more source

Resolving Nanoscale Heterogeneities in Lead Halide Perovskites Through Low‐Dose Concurrent 4D‐STEM‐EDX Mapping

open access: yesAdvanced Materials, EarlyView.
Mixed‐cation lead mixed‐halide perovskites suffer from structural instabilities linked to nanoscale heterogeneity. To probe this non‐destructively, a low‐dose, concurrent 4D‐STEM and EDX methodology has been developed. Examining a (FA0.83Cs0.17)Pb(I0.8Br0.2)3 film revealed a complex mosaic of coexisting crystal structures. Crucially, local deficiencies
Jinseok Ryu   +6 more
wiley   +1 more source

STUDY ON TENSILE MECHANICAL BEHAVIOR OF X-TYPE RE-ENTRANT HONEYCOMB STRUCTURE

open access: yesJixie qiangdu, 2020
Based on the re-entrant mechanism,the microstructure of the star and the re-entrant hexagon is combined. This paper designs a new re-entrant honeycomb structure model(X-shaped structure).
WANG Liang, LIU HaiTao
doaj  

Metal Oxide Nano‐Interface Boosting the Deep Ultraviolet Adjustable Noise‐Filtering In‐Sensor Computing

open access: yesAdvanced Materials, EarlyView.
We show that sol‐gel‐fractured indium–magnesium oxide combines deep‐ultraviolet responsivity, high carrier mobility, and an excellent memory dynamic range. This unique materials platform enables deep‐ultraviolet long‐afterglow light‐emitting devices with multifunctional integration.
Zhongshi Ju   +9 more
wiley   +1 more source

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