Results 21 to 30 of about 19,320,239 (252)

Ultrasensitive Hierarchical Piezoresistive Pressure Sensor for Wide‐Range Pressure Detection

open access: yesAdvanced Intelligent Systems, 2021
Pressure sensitivity and wide range are two crucial features of flexible electromechanical sensors for applications in the next‐generation of intelligent electronics, such as wearable healthcare monitors and soft human–machine interfaces.
Jing Li   +4 more
doaj   +1 more source

Programmable mechanical metamaterials based on hierarchical rotating structures

open access: yes, 2021
A novel two-dimensional (2D) mechanical metamaterial with highly programmable mechanical response under compressive load is presented in this paper by introducing hierarchical rotating structures, in which flexible structures are used to replace the ...
Fan, Zhengjie   +7 more
core   +1 more source

A highly efficient and durable solar evaporator based on hierarchical ion‐selective nanostructures

open access: yesEcoMat, 2023
Solar‐driven vapor generation technology can directly produce clean water, but existing strategies remain challenging in achieving both high evaporation performance and good salt resistance due to complex water‐thermal management.
Lianhui Li   +11 more
doaj   +1 more source

Spatio-Temporally Efficient Coding Assigns Functions to Hierarchical Structures of the Visual System

open access: yesFrontiers in Computational Neuroscience, 2022
Hierarchical structures constitute a wide array of brain areas, including the visual system. One of the important questions regarding visual hierarchical structures is to identify computational principles for assigning functions that represent the ...
Duho Sihn, Sung-Phil Kim
doaj   +1 more source

Formation of Nanostructure during Replication of a Hierarchical Plant Surface

open access: yesNanomaterials, 2021
Plant and animal surfaces have become a model for preparing special synthetic surfaces with low wettability, reflectivity, or antibacterial properties. Processes that lead to the creation of replicas of natural character use two-step imprinting methods ...
Dora Kroisová   +2 more
doaj   +1 more source

Axial mechanical properties and robust optimization of foam-filled hierarchical structures

open access: yes, 2023
In this study, two novel foam-filled hierarchical structures are proposed, namely foam-filled square hierarchical tubes (FSHT) and foam-filled circular hierarchical tubes (FCHT).
Gao, Y   +6 more
core   +1 more source

Hierarchical Fibers with a Negative Poisson’s Ratio for Tougher Composites [PDF]

open access: yes, 2013
In this paper, a new kind of hierarchical tube with a negative Poisson’s ratio (NPR) is proposed. The first level tube is constructed by rolling up an auxetic hexagonal honeycomb.
Yongtao Sun   +7 more
core   +1 more source

Biomimetic Hierarchically Arranged Nanofibrous Structures Resembling the Architecture and the Passive Mechanical Properties of Skeletal Muscles: A Step Forward Toward Artificial Muscle

open access: yesFrontiers in Bioengineering and Biotechnology, 2020
Skeletal muscles are considered to date the best existing actuator in nature thanks to their hierarchical multiscale fibrous structure capable to enhance their strength and contractile performances.
Carlo Gotti   +8 more
doaj   +1 more source

Monitored Tomographic Reconstruction—An Advanced Tool to Study the 3D Morphology of Nanomaterials

open access: yesNanomaterials, 2021
Detailed and accurate three-dimensional (3D) information about the morphology of hierarchically structured materials is derived from multi-scale X-ray computed tomography (XCT) and subsequent 3D data reconstruction.
Konstantin Bulatov   +7 more
doaj   +1 more source

Evaluation of hierarchical vector basis functions for quadrilateral cells [PDF]

open access: yes, 2011
New hierarchical vector basis functions for quadrilateral cells are introduced, and the matrix condition numbers associated with their use are compared to those of existing vector basis families to assess the relative linear independence of the functions.
Peterson A. F.   +4 more
core   +1 more source

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