Results 251 to 260 of about 641,264 (308)

Tri–Band and Dual–Response Smart Windows With Asymmetric Mid–Infrared Emissivity for Year–Round Energy Conservation

open access: yesAdvanced Science, EarlyView.
Our promising smart window exhibits exceptional optical properties, enabling the indoor temperature reduction of 12°C during summer and delivering the annual energy savings of 14.2%–24.4% across mid–to–low latitudes. ABSTRACT Building energy consumption accounts for 20%–40% of global energy usage, with windows among the least energy–efficient ...
Cheng Wang   +11 more
wiley   +1 more source

Water‐Efficient Smart Drip Irrigation Enabled by a Low‐Power and High‐Efficiency Flexible Electromagnetic Actuator

open access: yesAdvanced Science, EarlyView.
Water scarcity poses a critical threat to global food security. A low‐power, flexible electromagnetic actuator is presented for smart drip irrigation systems. The device achieves precise, wide‐range flow modulation (0.05–5.8 mL/min) in response to real‐time plant demands, reducing water consumption compared to conventional flood irrigation.
Duo Chen   +7 more
wiley   +1 more source

Systematic Benchmarking of a Noise‐Tolerant Conductive Hydrogel Electrode for Epidermal Bioelectronics

open access: yesAdvanced Science, EarlyView.
General schematic of the approach. Abstract Conventional Silver/Silver Chloride (Ag/AgCl) electrodes remain the clinical standard for electrophysiological monitoring but are hindered by poor skin conformity, mechanical rigidity, and signal degradation, particularly under motion or sweat.
Nazmi Alsaafeen   +11 more
wiley   +1 more source

A Wireless, Battery‐Free Artificial Throat Patch with Deep Learning for Emotional Speech Recognition

open access: yesAdvanced Science, EarlyView.
In this work, Xu and co‐workers develop a wireless, battery‐free artificial throat patch system (ATPS) consisting of a carbon nanotube‐based thin‐film strain sensor and a miniaturized flexible printed circuit board, to enable real‐time sensing of throat signals.
Bingxin Xu   +10 more
wiley   +1 more source

Brain‐Adhesive Bioelectronics With Shape‐Morphable and Biodegradable Properties for Stable Brain Signal Monitoring

open access: yesAdvanced Science, EarlyView.
A brain‐adhesive sensor (B‐Sensor) was developed by integrating a self‐healing biodegradable elastomer, a tissue‐adhesive hydrogel, and molybdenum electrodes. The B‐Sensor adheres to brain tissue, conforms to cortical curvatures, and maintains stable electrical performance over the intended period for reliable recording of spatiotemporal brain activity
Heewon Choi   +8 more
wiley   +1 more source

Rib‐Reinforced Ultralight and Ultra‐Strong Shell Lattices

open access: yesAdvanced Science, EarlyView.
This study thoroughly reveals the relation between the curvature and stress direction of triply periodic minimal surface (TPMS) thin shell lattices and proposes a novel rib reinforcement design strategy to incorporate ribs along the line of asymptotes (LOA) and the line of principal curvatures (LOC) to enhance the strength of ultralight TPMS shell ...
Winston Wai Shing Ma   +6 more
wiley   +1 more source
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Skill, Strength, Handedness, and Fatigue

Journal of Motor Behavior, 1989
Thirty male subjects, 20 of whom were self-classified left-handers and 10 right-handers, were tested on a grip-strength task and a handwriting task with each hand, both under normal conditions and in a situation of induced experimental fatigue. On the basis of questionnaire scores, the left-handers were sub-divided into two groups comprising the 10 ...
K A, Provins, J, Magliaro
openaire   +2 more sources

Fatigue strength distributions

International Journal of Fatigue, 1993
Abstract The transformation between fatigue life and fatigue strength distributions has already been established using double-logarithmic coordinates (In N −In S ) and semilogarithmic coordinates (In N − S ). Here, a similar transformation is considered using straight fatigue lines in double-logarithmic coordinates, {In N −In( S − S a )}, with non ...
openaire   +1 more source

Fatigue strength of high-strength structural steels

Strength of Materials, 1982
1. The fatigue strength of high-strength steels 30KhN2MFA and 35KhN2MFA-Sh after quenching and tempering was studied in symmetrical cyclic bending with and without a stress raiser. 2. The fatigue strength of the steels was evaluated according to the appearance of a crack of standard size and in accordance with fatigue fracture ...
L. S. Andreev   +2 more
openaire   +1 more source

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