Results 111 to 120 of about 177,537 (304)

Large‐Area 2D Metasurface‐Based Triboelectric E‐Skin Arrays: Contact & Proximity Tactile Mapping with Broadband Acoustic Readouts

open access: yesAdvanced Materials, EarlyView.
Metasurface‐engineered NC‐TENG arrays integrate tactile pressure mapping, non‐contact gesture sensing, and acoustic signal readouts in one ultrathin module, and outperforms pristine PDMS in terms of electrical output and real‐time spatial mapping for next‐gen wearables.
Injamamul Arief   +12 more
wiley   +1 more source

The effects of large vibration amplitudes on the mode shapes and natural frequencies of thin isotropic skew plates

open access: yesMATEC Web of Conferences, 2012
The present work concerns the nonlinear dynamic behavior of skew plates at large vibration amplitudes with fully clamped edges. The large amplitude free vibration problem is modelled by a set of nonlinear algebraic equations using Hamilton’s principle ...
Benamar R., Mly Abdelali H., El Bikri K.
doaj   +1 more source

Crack detection using nonlinear output frequency response functions - an experimental study [PDF]

open access: yes, 2006
The new concept of Nonlinear Output Frequency Response Functions (NOFRFs) is introduced in this paper to detect cracks in beams using frequency domain information.
Billings, S.A., Lang, Z.Q., Peng, Z.K.
core  

Multifunctional Bio‐Based Packaging for Perishable Foods: Structural Design, Scalable Fabrication, and Versatile Applications

open access: yesAdvanced Materials, EarlyView.
An overview of design principles and scalable fabrication strategies for multifunctional bio‐based packaging. Radiative cooling films, modified‐atmosphere films/membranes, active antimicrobial/antioxidant platforms, intelligent optical/electrochemical labels, and superhydrophobic surfaces are co‐engineered from material chemistry to mesoscale structure
Lei Zhang   +6 more
wiley   +1 more source

Nonlinear vibration control for flexible manipulator using 1: 1 internal resonance absorber

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2018
The main task of this paper is to put forward a vibration absorption method for attenuating nonlinear vibration of the flexible manipulator based on modal interaction.
Yushu Bian, Zhihui Gao
doaj   +1 more source

Nonlinear Vibrations of Chains

open access: yesJournal of Vibration and Control, 1997
Chains are important machine components in cars, in gears, and in armored vehicles. The dynamics of chains typically are characterized by free motion and contact processes, which may include impacts and friction. Therefore, modeling by multibody theory augmented by methods of contact mechanics represents an appropriate way to evaluate dynamic chain ...
Friedrich Pfeiffer   +2 more
openaire   +2 more sources

Neuromorphic Electronics for Intelligence Everywhere: Emerging Devices, Flexible Platforms, and Scalable System Architectures

open access: yesAdvanced Materials, EarlyView.
The perspective presents an integrated view of neuromorphic technologies, from device physics to real‐time applicability, while highlighting the necessity of full‐stack co‐optimization. By outlining practical hardware‐level strategies to exploit device behavior and mitigate non‐idealities, it shows pathways for building efficient, scalable, and ...
Kapil Bhardwaj   +8 more
wiley   +1 more source

When Poor Exciton Dissociation Limits Photocurrents in Organic Solar Cells: Why Low Offset Non‐Fullerene Acceptor Blends Can't Be Efficient

open access: yesAdvanced Materials, EarlyView.
The energetic offset between the donor and the acceptor components in organic photoactive layers is central to the tradeoff between photovoltage and photocurrent losses. This Perspective covers the most important issues surrounding this topic in non‐fullerene acceptor blends, from the difficulty of accurately determining state energies and driving ...
Dieter Neher, Manasi Pranav
wiley   +1 more source

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