Results 31 to 40 of about 2,605 (265)
Ball‐milling Cu‐based metallic glasses with ceria creates a unique nanostructure where metallic glass particles are wrapped by CeO2 nanoparticles. The intimate integration triggers copper state reorganization during reaction and aging, boosting CO oxidation and COPrOx activity.
Maahin Mirzay‐Shahim +17 more
wiley +1 more source
Collapse Strength of Coiled Tubing under Complex Stress State
To address the coiled tubing collapse and understand the collapse mechanism under complex stress state, the mathematical model of coiled tubing collapse strength under complex stress state is established according to the twin-shear unified strength ...
Tong Shaokai, Gao Deli
doaj
Aqueous Zn(II) Salphen metallofibers decorated with PNIPAM undergo reversible, multi‐stimuli‐responsive hierarchical bundling. This higher‐order structuring kinetically stabilizes the otherwise fragile assemblies against dilution, acidic hydrolysis, and transmetallation, enables selective sorting of responsive fibers, and programs hydrogelation at ...
Merlin R. Stühler +5 more
wiley +1 more source
High‐Performance Bio‐Glue From the Berries of a Parasitic Plant
We report a fully bio‐based adhesive derived primarily from a (poly)saccharide extract obtained from the berries of the hemi‐parasitic plant mistletoe (Viscum album), supplemented with tannic and malic acid without any further chemical functionalization.
Ufuk Gürer +8 more
wiley +1 more source
Soft Skins With Reversible Thickness Morphing: Materials, Mechanisms, and Applications
Evolution of electronic skin (e‐skin) technologies toward adaptive, multifunctional soft skins. Phase I highlights early rigid and discrete sensory interfaces. Phase II shows the transition toward flexible, stretchable, and large‐area e‐skin. Phase III captures the emergence of computational e‐skin.
Oliver Ozioko +2 more
wiley +1 more source
Research and Field Test of Coiled Tubing Sidetracking Technology
Coiled tubing drilling (CTD) technology is an effective mean for the development of shallow depleted reservoirs. The CTD technology in our country is still in the field test stage.
Jia Tao, Zhang Yanping, Wu Qianli
doaj
Ceramic‐based V2O5/Fe3O4 hybrid films are shaped into butterfly‐proboscis‐inspired microscroll actuators. Magnetic triggering initiates unrolling, while geometry‐programmed elastic strain energy drives rapid recoil, enabling fast, reversible, durable, and load‐bearing actuation under near‐field magnetic stimulation.
Semi Kim +5 more
wiley +1 more source
TESCLA (tubular electromagnetic soft conformal linear actuator) combines liquid‐metal solenoids and compliant magnetic composites to achieve large‐stroke bidirectional actuation with continuous bending. Integrated inductance‐based self‐sensing enables proprioceptive position estimation without external sensors, providing a versatile platform for soft ...
Yeongjin Choi +3 more
wiley +1 more source
Finite Element Analysis of Coiled Tubing Fatigue Life under Different Internal Pressure
In order to make up the theoretical calculation defect on accurately predicting the fatigue life of coiled tubing, ANSYS Workbench finite element analysis software is used to establish the three-dimensional finite element mechanical model of coiled ...
Cao Lihu, Han Lu, Cao Yinping, He Haijun
doaj
Shape Memory Polymer‐Based Flexible Pressure Sensor for Real‐Time Venous Thrombosis Monitoring
A shape‐memory tubular flexible pressure sensor with a 100‐mesh microstructured SMP‐PLA/MWCNTs sensing layer was developed for PICC‐mounted monitoring of thrombosis‐related pressure changes. The sensor combines high sensitivity (204 kPa−1), a fast response time (28 ms), and conformal catheter fixation and was validated by hydrostatic and ex vivo ...
Yi Chen +7 more
wiley +1 more source

