Results 131 to 140 of about 560,047 (295)

Thermoelectric Property Mapping for High‐Performance Integrated MgAgSb‐MgCuSb System

open access: yesAdvanced Science, EarlyView.
From the property mapping of the MgAgSb–MgCuSb system, both thermoelectric materials and corresponding interface materials are optimized: Ag‐rich compositions provide higher PF and zT, whereas Cu‐rich side yields superior transport properties and low contact resistance.
Jiankang Li   +5 more
wiley   +1 more source

Catechol Derivative‐Based Bioadhesives: Molecular Design for Precision Medical Adhesion

open access: yesAdvanced Science, EarlyView.
This study utilizes tree‐inspired side‐chain engineering to graft five catechol derivatives onto PVA, systematically revealing how side‐chain length and substituents regulate adhesion and cohesion properties. Among them, the PVA‐CA patch demonstrates superior tissue adhesion, biocompatibility, and promotes regeneration, establishing a programmable ...
Xueyu Wang   +8 more
wiley   +1 more source

Neural Network‐Based Permittivity Engineering of Magnetic Absorbers for Customizable Microwave Absorption

open access: yesAdvanced Science, EarlyView.
A neural network‐enabled permittivity engineering paradigm is introduced, transcending traditional trial‐and‐error design. By decoupling electromagnetic parameters and screening a high‐throughput feature space, an ultrathin (1.0 mm) magnetic absorber is inversely designed, experimentally achieving a superior and customizable 5.1 GHz bandwidth and ...
Chenxi Liu   +9 more
wiley   +1 more source

Applications of film thickness equations [PDF]

open access: yes
A number of applications of elastohydrodynamic film thickness expressions were considered. The motion of a steel ball over steel surfaces presenting varying degrees of conformity was examined.
Dowson, D., Hamrock, B. J.
core   +1 more source

2D Metal‐Organic Frameworks for High‐Performance Solid‐State Electrolytes: A Comprehensive Review

open access: yesAdvanced Science, EarlyView.
In this review, we elucidate the intrinsic advantages, synthetic methodologies, structural characteristics, ion‐transport mechanisms and performance optimization strategies while highlighting representative material systems and applications of 2D MOFs for electrolyte applications.
Changchun Ai   +8 more
wiley   +1 more source

Space Storable, Thrust-Vectorable Rocket Motor Nozzle and Related Methods [PDF]

open access: yes
A thrust-vectoring rocket motor nozzle includes a forward assembly having a forward shell with a flange configured for connection to a motor and a throat portion opposite the flange.
Bellotte, Joseph   +4 more
core   +1 more source

Bioinspired Adaptive Leg‐Claw Enables Robust Perching and Grasping for UAVs

open access: yesAdvanced Science, EarlyView.
Inspired by owl limb morphology and bat roosting behavior, this study presents a bioinspired adaptive leg‐claw mechanism that enables UAVs to perform robust and versatile perching and grasping. The design integrates a four‐link tibial structure, tension‐driven deformable feet, and active control, enabling stable perching on various branches and ...
Tianyu Cheng   +6 more
wiley   +1 more source

Characteristics of the Pneumohydraulic Recuperative Conical Device of a Hauling Tractor with a Pole Trailer

open access: yesЛесной журнал
The consequences of operating road trains consisting of tractors with pole trailers in difficult road conditions have been described. Promising scientific directions have been presented contributing to increasing the efficiency of tractors with trailed ...
Valeryi I. Posmetyev   +5 more
doaj  

Bending Angle Design of the Variable Direction Joint for Directional Well Casing Recovery

open access: yesShiyou jixie, 2015
Improper variable direction joint bending angle could lead to fish falling during directional well casing recovery.To address the issue,the variable direction joint bending angle should be designed according to the casing damage well curvature.Through ...
Yu Fahao   +4 more
doaj  

Multi‐Force‐Driven Self‐Recoverable SWIR Mechanoluminescence for Underwater Communication

open access: yesAdvanced Science, EarlyView.
This study represents the first demonstration of self‐recoverable mechanoluminescent (ML) within a single material across diverse mechanical modes, enabled by the synergistic coupling of piezoelectric and triboelectric effects. Through a combinatorial doping approach, the MgNb2O6 crystal exhibits breakthrough short‐wavelength infrared ML performance ...
Jie Sun   +13 more
wiley   +1 more source

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