Results 51 to 60 of about 302,242 (373)

Shape‐Reconfigurable Crack‐Based Strain Sensor with Ultrahigh and Tunable Sensitivity

open access: yesAdvanced Functional Materials, EarlyView.
A highly sensitive crack‐based sensor with tunable strain detection capabilities is demonstrated through controlled nanocrack formation in a line‐patterned shape memory polymer substrate. The sensor design integrates thermoplastic polyurethane and poly(lactic acid), enabling thermo‐responsive reconfiguration of crack geometry.
Seungjae Lee   +10 more
wiley   +1 more source

Mutation effect of acoustic and electromagnetic emissions of hard rock impact failure

open access: yesInternational Journal of Distributed Sensor Networks, 2019
To reveal acoustic emission and electromagnetic emission effects during hard rock impact failure is a crucial issue for monitoring and warning rockburst risk induced by hard roof fracture and fall.
Yang Liu, Cai-Ping Lu, Heng Zhang
doaj   +1 more source

Acoustic emission across the magnetostructural transition of the giant magnetocaloric Gd5Si2Ge2 compound [PDF]

open access: yes, 2005
We report on the existence of acoustic emission during the paramagnetic-monoclinic to ferromagnetic-orthorhombic magnetostructural phase transition in the giant magnetocaloric Gd5Si2Ge2 compound.
A. Planes   +9 more
core   +2 more sources

Sono‐Piezo‐Photosynthesis of Ethylene and Acetylene from Bioethanol under Ambient Conditions

open access: yesAdvanced Functional Materials, EarlyView.
A novel sono‐piezo‐photocatalytic strategy enables the conversion of bioethanol to ethylene (C2H4) and acetylene (C2H2) under ambient conditions, addressing the limitations of conventional methods that are high‐temperature and energy‐intensive. By using an advanced graphene oxide/sodium bismuth titanate heterostructure catalyst, this work achieved ...
Yue Jiang   +21 more
wiley   +1 more source

Control of single photon emitters in semiconductor nanowires by surface acoustic waves [PDF]

open access: yesSemicond. Sci. Technol. 32, 084002 (2017), 2019
We report on experimental study into the effects of surface acoustic waves on the optical emission of dot-in-a-nanowire heterostructures in III-V material systems. Under direct optical excitation, the excitonic energy levels in III-nitride dot-in-a-nanowire heterostructures oscillate at the acoustic frequency, producing a characteristic splitting of ...
arxiv   +1 more source

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

open access: yesAdvanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai   +8 more
wiley   +1 more source

Regular Detection and Intelligent Monitoring Technology of Atmospheric Storage Tank Based on Acoustic Emission and Internet of Things

open access: yese-Journal of Nondestructive Testing
Acoustic emission testing is a non-destructive testing method that can evaluate the corrosion status and structural integrity of storage tanks in real time.
Jiehui Xie, Xueying Lu
doaj   +1 more source

Structural Health Monitoring of Large Structures Using Acoustic Emission-Case Histories [PDF]

open access: yes, 2019
Acoustic emission (AE) techniques have successfully been used for assuring the structural integrity of large rocket motorcases since 1963 [...
Ono, Kanji
core   +1 more source

Acoustic Emission of Deformation Twinning in Magnesium [PDF]

open access: yesMaterials, 2016
The Acoustic Emission of deformation twinning in Magnesium is investigated in this article. Single crystal testing with combined full field deformation measurements, as well as polycrystalline testing inside the scanning electron microscope with simultaneous monitoring of texture evolution and twin nucleation were compared to testing at the laboratory ...
Mo, Chengyang   +9 more
openaire   +4 more sources

Compositing Effect Leads to Extraordinary Performance in GeSe‐Based Thermoelectrics

open access: yesAdvanced Functional Materials, EarlyView.
Rhombohedral GeSe is rationally designed with (GeSe)0.9(AgBiTe2)0.1‐1.5 mol.% SnSe, achieving a peak ZT of 1.31 at 623 K. Forming a composite with SnSe establishes interfaces with strong phonon scattering and weak electron scattering. Multiscale defects lead to an ultra‐low lattice thermal conductivity (0.26 W m−1 K−1), approaching the amorphous limit.
Min Zhang   +14 more
wiley   +1 more source

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