Results 71 to 80 of about 23,946 (252)
Scroll compressor composite vibration isolation system and optimization design [PDF]
For the wide-frequency vibration isolation requirements of 25P large-capacity scroll compressors, this study proposes an improved composite vibration isolation scheme. By analyzing the load transfer mechanism and vibration characteristics of the original
Zhen Wang +5 more
doaj +1 more source
This work introduces an ultrafast thermal shock strategy to synthesize a CuNiSnLa medium‐entropy metallic glass (MEMG). The rapid heating and cooling process generates a robust, highly active catalyst for electrocatalytic nitrate reduction to ammonia (NRA).
Hongbo Chen +7 more
wiley +1 more source
Interaction‐Driven Assembly Pathways in Heterogeneous Active Microrobotic Systems
Peanut‐ and cube‐shaped light‐powered microrobots exhibit distinct magnetic and photocatalytic responses that determine their heterogeneous self‐assembly. In the dark, magnetic dipole interactions drive colloidal copolymerization with cubes acting as nucleation centers, whereas under light irradiation, phoretic interactions compete with magnetic ...
Domenico Calabrò +5 more
wiley +1 more source
Six-Dimensional Hybrid Broadband Vibration Isolation Based on Singular Parallel Mechanisms
Six-dimensional broadband vibration isolation is necessary for precision manufacturing, testing and assembly. A six-dimensional nearly zero-stiffness mechanism based on singular parallel mechanisms was proposed, which was taken as the main structure of ...
Yanbin Liu, Xiuying Han, Jianhai Han
doaj +1 more source
Molecular rotors are fluorescent molecules that are sensitive to viscosity and temperature variations in the environment. They exhibit a direct correlation between fluorescence and viscosity within Newtonian fluids. However, this correlation becomes less straightforward in complex systems.
Flavia Di Scala +6 more
wiley +1 more source
Charge‐Tunable Coacervate Micelles for Separator Engineering in Lithium‐Sulfur Batteries
A separator engineering strategy based on charge‐tunable complex coacervate core micelles (C3Ms) is presented to form an ion‐selective layer regulating polysulfide transport in Li–S batteries. The micelles enable uniform adsorption onto commercial polypropylene separators and infiltration throughout the internal pore network, suppressing polysulfide ...
Yongsheng Zhang +11 more
wiley +1 more source
A tubular electrowetting pump moves alternating droplets through a millimeter‐wide channel in discrete, reversible steps, functioning as a fluidic stepper motor. With no moving parts and electrodes insulated from the liquid, it delivers silent, accurate flow. Flexibility allows the pump to be woven directly into textiles for wearable, medical, and soft‐
Robert Hennig, Herbert Shea
wiley +1 more source
Co‐assembly of rationally designed glycosaminoglycan‐binding peptides with sulfated glycosaminoglycans yields supramolecular hydrogels with tunable mechanics and matrix‐mediated cytokine retention. The glycosaminoglycans thereby act as cofactors, driving a coil‐to‐β‐sheet transition that triggers gelation.
Shirel Veretnik +8 more
wiley +1 more source
RESEARCH ON NONLINEAR VIBRATION CONTROL OF MISSILE STORAGE AND TRANSPORTATION
In order to reduce the vibration and possible damage in the shipping process,introducing negative stiffness in the vibration isolator,broadening the vibration isolation frequency,reduce the starting vibration isolation frequency,at the same time,proposed
KANG BingBing +4 more
doaj

