Results 211 to 220 of about 100,180 (302)

Ionogel Actuators: A Review

open access: yesSmartBot, EarlyView.
Ionogels dynamically and functionally couple ionic liquids with polymer networks, enabling multiscale programmable deformation and motion under electrical, magnetic, optical, thermal, humidity, and chemical stimuli. This article systematically elucidates the constituent components, structural design, and multiscale actuation mechanisms of ionogel ...
Dezhou Cao   +5 more
wiley   +1 more source

When does category spanning hurt or help producers?

open access: yesStrategic Management Journal, EarlyView.
Abstract Research Summary Scholars have theorized many factors shaping whether category spanning helps or hurts producers. We first synthesize evidence by meta‐analyzing 25 years of empirical research, which reveals a null effect of spanning on average, yet with significant subsample heterogeneity. To unpack it, we theorize and find that spanning hurts
Jungsoo Ahn   +2 more
wiley   +1 more source

Tribo‐Electromagnetic Nanogenerator Based on Microstructured Polyvinyl Chloride Layer for Enhanced Hybrid Energy Harvesting and Intelligent Health Monitoring

open access: yesSmall, EarlyView.
A microstructured PVC‐based tribo‐electromagnetic nanogenerator (TEMNG) enables simultaneous harvesting of biomechanical and ambient electromagnetic energy. The hybrid device achieves high electrical outputs while supporting wearable sensing, gait monitoring, and self‐powered touch interfaces.
Ching‐Te Kuo   +4 more
wiley   +1 more source

Evaluation of prestress losses in concrete beams using destructive and non‐destructive methods

open access: yesStructural Concrete, EarlyView.
Abstract Over the past few decades, prestressing techniques have become essential in the construction of key structures, infrastructure, and bridges. The serviceability and safety of prestressed concrete (PC) elements are closely tied to the effectiveness of the prestressing process.
A. N. Consiglio, G. Muciaccia, G. Rosati
wiley   +1 more source

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