Results 191 to 200 of about 1,225,963 (300)
Permanent magnet putty (PMP) integrates high‐coercivity NdFeB particles with a dynamic polyborosiloxane–Ecoflex matrix, achieving rapid self‐healing (90% mechanical recovery in 10 s) and magnetic recovery within 20 min. With twice the sensitivity of commercial putties, PMP enables precise 5–30 N force detection and discrimination between pressing and ...
Ruotong Zhao +5 more
wiley +1 more source
Development and performance evaluation of multi-functional slickwater fracturing fluid system for shale reservoirs. [PDF]
Li Q, Wang X, Li D, Tang Y, Ge H.
europepmc +1 more source
Waveguide Photoactuators: Materials, Fabrication, and Applications
Waveguide photoactuators convert guided light into mechanical motion. Their tethered‐flexible design enables minimally invasive surgery and confined‐space robotics. This review aims to guide materials selection, device design, and system integration, accelerating the transition of waveguide photoactuators from laboratory prototypes to versatile ...
Minjie Xi +4 more
wiley +1 more source
Foam Stabilization Mechanism of a Novel Non-cross-linked Foam Fracturing Fluid. [PDF]
Xiong J, Zhao Z, Sun W, Liu W.
europepmc +1 more source
This study presents a soft pneumatic fabric bidirectional actuation module (PNEUMA) capable of generating high torque in both bending directions within a single integrated architecture. PNEUMA achieves up to 50 Nm with reduced inflation volume and a lightweight design.
Odysseas Simatos +2 more
wiley +1 more source
Study on pH-Responsive Delayed, Cross-Linking and Weighted Fracturing Fluid. [PDF]
Bai H +10 more
europepmc +1 more source
Dual‐Mode Gripper With Suction and Shape‐Adaptive Freezing Grasps
This study presents a dual‐mode robotic gripper that combines vacuum suction with a shape‐adaptive freezing grasp. The freezing mode uses a compliant rubber membrane, a sprayed water layer, and dry‐ice powder to generate ice‐mediated adhesion while conforming to complex geometries.
Takuma Yanagisawa +4 more
wiley +1 more source
Study on the effect of acid fracturing fluid on pore structure of middle to high rank coal. [PDF]
Kang Z +4 more
europepmc +1 more source
IGFBP4 is upregulated in granulosa cells of aged ovaries across monkeys, mice, and humans. It inhibits YAP signaling, thereby suppressing cell proliferation and contributing to follicular dysfunction. Deletion of Igfbp4 in granulosa cells enhances ovulatory output, improves hormone profiles, and reproductive performance in aged female mice, suggesting ...
Qianhui Hu +8 more
wiley +1 more source

