Results 171 to 180 of about 11,436 (251)

Human‐Scale Rotating Magnetic Field Delivery With Permanent Magnets Under Anatomic and Robotic Constraints

Advanced Robotics Research, EarlyView.
Rotating magnetic fields (RMFs) are widely used for microrobot propulsion and control. We show that RMF generation with permanent magnets is mechanically feasible for many limb and intracranial applications but becomes constrained for thoracic targets.
Tuan‐Anh Le, Husnu Halid Alabay, Anika Sivarasa, Gia‐Minh Hoang, Hakan Ceylan   +4 more
wiley   +1 more source

Rational regulation of the torsion angle of covalent organic frameworks for enhanced CO₂ photoreduction to ethane. [PDF]

Chem Sci
Ma Y, Zhang Q, Chen H, Wang H, Deng Y, Guo Y, Gao S, Wang J.   +7 more
europepmc   +1 more source

Stiffness‐Programmable Origami Robots With Tendon‐Driven Actuation via Multimaterial 3D Printing

Advanced Robotics Research, EarlyView.
Motion diversity is achieved in a tendon‐driven origami robot through programmable stiffness rather than modified actuation. Multimaterial 3D printing embeds soft creases, modular inserts redirect identical tendon inputs into distinct behaviors, and variable‐stiffness inserts enable real‐time switching.
Elisha Lerner, Jianguo Zhao
wiley   +1 more source

Clinicopathological characteristics and etiological considerations of isolated fallopian tube torsion in pediatric patients: a single center study. [PDF]

Transl Pediatr
Li S, Xie F, Wang J, Li Y, Yu S, Wang Z, Li X, Huang L.   +7 more
europepmc   +1 more source

A Perspective on the Applications of Triphasic Gas Storage in Electrochemical Systems

Advanced Science, EarlyView.
Gas storage in microporous materials positioned locally at an electrode or electrocatalyst surface enhances electrochemical processes. Abstract Microporous materials store gases under dry conditions (e.g., hydrogen or oxygen via physisorption), but in some cases microporous materials also show triphasic (e.g., in a solid|gas|liquid system) gas storage ...
Zhongkai Li, Corin T. Scott, Taku Suzuki‐Osborne, John P. Lowe, Dominic Taylor, Mariolino Carta, Neil B. McKeown, Andrew D. Burrows, Lucia H. Mascaro, Frank Marken   +9 more
wiley   +1 more source

In Situ X‐Ray Tomography and Acoustic Emission Monitoring of Damage Evolution in C/C‐SiC Composites Fabricated by Liquid Silicon Infiltration

Advanced Science, EarlyView.
This study investigates how the internal structure of fiber‐reinforced ceramic composites affects their resistance to damage. By combining 3D X‐ray imaging with acoustic emission monitoring during mechanical testing, it reveals how silicon distribution influences crack formation.
Yang Chen, Renato S. M. Almeida, Stefan Flauder, Guillaume Couégnat, Kamen Tushtev, Jürgen Horvath, Peter Wriggers, Kurosch Rezwan   +7 more
wiley   +1 more source

The Zwegers shadow as $U(1)$-projected intrinsic torsion\\ on twelve-manifolds

On a closed almost-quaternionic $\text{Spin}^c$ orbifold of real dimension $4n \geq 12$, with non-trivial determinant line bundle $L$ and a compatible involution $\sigma$, two obstruction classes from independent traditions coexist: Swann's intrinsic torsion, which measures the failure of quaternion-Kahler holonomy, and the Bruinier-
openaire   +3 more sources

Chirobiophore: A Novel Framework for Quantifying Biochirality in Macromolecular Systems. [PDF]

Biomolecules
Lungu CN, Basak SC.
europepmc   +1 more source

Physical Origin of Temperature Induced Activation Energy Switching in Electrically Conductive Cement

Advanced Science, EarlyView.
The temperature‐induced Arrhenius activation energy switching phenomenon of electrical conduction in electrically conductive cement originates from structural degradation within the biphasic ionic‐electronic conduction architecture and shows percolation‐governed characteristics: pore network opening dominates the low‐percolation regime with downward ...
Jiacheng Zhang, Xinyuan Ke, Andrew Heath, Richard J. Ball, Jiawei Xie, Jinchen Fan, Guisheng Li, Kevin Paine   +7 more
wiley   +1 more source

A Study on the Evolution of Subsequent Yield Surfaces for Ductile Cast Iron Under Different Pre-Deformation Loading Conditions. [PDF]

Materials (Basel)
Huang S, Qin S, Pang J.
europepmc   +1 more source