Results 31 to 40 of about 145,297 (260)
Bulk-cusp microstructure for controllable multi-directional liquid spreading
Nature CommunicationsControllable wetting of liquid on solid surface is meaningful for advanced science and engineering. Current researches about controllable liquid spreading are generally limited to unidirectional modes, while achieving multi-directional spreading on ...
Songjie Dai +5 more
doaj +1 more source
Natural Frequency of Rotor with Rotor Core.
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C, 1991 A rotor core of induction motors consists of many multilayered steel sheets for core which are fixed to a shaft with a shrinkage fit. A bending vibration of rotors with such a rotor core is investigated experimentally. It is shown that the rotor can be modelized by an opening of the multilayered steel sheets and a equivalent Young's modulus of the ...
IWATA, Yoshio +2 more
openaire +2 more sources
Optimization of the Production of Rubber Compounds Using Mathematical Models
Advanced Engineering Materials, EarlyView.Rubber compounds were mixed in a batch internal mixer, and symbolic regression was used to derive mathematical models linking recipe and process parameters to ram path, torque, and mixing quality (incorporation, dispersion, distribution). Subsequent optimization with evolutionary algorithms identified operating conditions that reduce specific energy ...
Anke Bardehle +7 more
wiley +1 more source
Gallium-based liquid metal as a special lubricant: A review
FrictionGallium-based liquid metal (GLM) is an amorphous metal that remains liquid at room temperature. It has important characteristics, such as high temperature resistance, high thermal conductivity, good electrical conductivity, favorable radiation resistance,
Songjie Dai +6 more
doaj +1 more source
Tribology in Natural Sand Dust Environment
Tribology Online, 2008 The tribological problem in natural sand dust environment was proposed and an equipment for simulating the natural sand dust environment based on Multi-Venturi structure was introduced for studying the tribological problem.
Dongfeng Diao, Tonghai Wu
doaj +1 more source
IEEE Access, 2021 Energy efficient conversion and saving technologies have increasingly become areas of fierce competition among countries all over the world. As a vehicle power multiplier, the turbocharger advances the power output of the engine, but also increases the ...
Ke Yan +3 more
doaj +1 more source
Janus Photonic Graphics by Stratified Assembly of Two Distinct Colloids
Advanced Functional Materials, EarlyView.Double‐sided Janus photonic micropatterns with vivid structural colors are fabricated through a single‐step bottom‐up strategy. Density‐driven stratification and depletion‐mediated crystallization of PMMA and PS binary colloids lead to exclusive lattices on opposite surfaces under centrifugal force.
Young Geon Kim +4 more
wiley +1 more source
COFs on MOFs: Layer‐by‐Layer Synthesis of MOF@COF Nanoparticles with Synergistic Adsorption
Advanced Materials, EarlyView.A layer‐by‐layer strategy enables the growth of crystalline covalent organic framework (COF) shells on metal–organic framework nanoparticles, creating core–shell structures with tunable porosity. Ordered interstitial mesopores are formed during shell growth, which are connected with the COF's intrinsic micropores, thereby enhancing water sorption. This
Ana Guillem‐Navajas +11 more
wiley +1 more source
Thermal Bending of the Rotor Due to Rotor‐to‐Stator Rub [PDF]
International Journal of Rotating Machinery, 1998 The rotor thermal bending due to the rotor‐to‐stator rubbing can lead to one of three types of observed rotor lateral motion: (1) spiral with increasing amplitude, (2) oscillating between rub]no‐rub conditions, and (3) asymptotical approach to the rotor limit cycle.
Paul Goldman +2 more
openaire +2 more sources
Effects of rotor–rotor interaction on the wake characteristics of twin rotors in axial descent
Journal of Fluid Mechanics, 2022 In this study, the effects of rotor–rotor interaction on wake characteristics were investigated experimentally for a twin-rotor configuration in axial descent. The wake velocities were measured at descent rates (descent speed/induced velocity at the rotor disk during hover) from 0.87 to 1.52, and the rotor–rotor interaction strength was controlled by ...
Seokbong Chae, Seungcheol Lee, Jooha Kim
openaire +2 more sources