Determination of ball bearing dynamic stiffness [PDF]
, 1982 The dynamic radial stiffness characteristics of rolling element bearings are currently determined by analytical methods that have not been experimentally verified.
Beatty, R. F., Rowan, B. F.
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Shapeshifting Liquid Metal Droplets for Soft Fluidic Machines
Advanced Materials, EarlyView.This study presented a liquid metal shape shifting strategy which harnesses Lorentz force, surface tension and fluid instabilities to achieve autonomous fluidic power. By using a liquid metal droplet as a mobile current carrier, this strategy enables the development of low‐voltage, self‐oscillating pumps that outperform existing soft pumps.
Saba Firouznia +5 more
wiley +1 more source
Common causes of failure of pneumatic distributors in high precision pneumatic seeders: Proposals towards predictive maintenance [PDF]
, 2011 Modern precision pneumatic drills (1-500 kg/ha) used in the cultivation of high density crops such as winter cereals (up to 400 plants/m2) are very high performance equipment that triple the working width (up to 9m) and rates (up to 14 km/h) compared to ...
Barreiro Elorza, Pilar +5 more
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Beyond Conventional Cooling: Advanced Micro/Nanostructures for Managing Extreme Heat Flux
Advanced Materials, EarlyView.This review examines the design, application, and manufacturing of biomimetic or engineered micro/nanostructures for managing high heat‐flux in multi‐level electronics by enhancing conductive, convective, phase‐changing, and radiative heat transfer mechanisms, highlighting their potential for efficient, targeted thermal management, and future prospects.
Yuankun Zhang +7 more
wiley +1 more source
Experimental campaign tests on ultra micro gas turbines, fuel supply comparison and optimization [PDF]
, 2018 The increasing demand for miniaturized radio-controlled vehicles inspired the following research. The uses of these unmanned miniaturized/micro vehicles range from aero-modeling to drones for urban control and military applications too.
Capata, Roberto, Saracchini, Matteo
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Retracted: Hydraulic Lifting and Rotating System Lifting Machinery Transmission Control Design [PDF]
, 2023 Mobile Information Systems
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Rapid Fabrication of Self‐Propelled and Steerable Magnetic Microcatheters for Precision Medicine
Advanced Materials, EarlyView.A rapid Joule heating fabrication method for the production of self‐propelling, adaptive microcatheters, with tunable stiffness and integrated microfluidic channels is presented. Demonstrated through three microrobotic designs, including a steerable guiding catheter, an untethered wave‐crawling TubeBot, and a distal‐end propelled microcatheter, it was ...
Zhi Chen +5 more
wiley +1 more source
Sacrificial Biofabrication for Vascularization: Concept, Materials, Technologies, and Applications
Advanced Materials, EarlyView.Vasculature is indispensable for tissue viability in regenerative medicine. The sacrificial biofabrication enables precise fabrication of vascular channels by using temporary templates that are subsequently removed. This review defines the concept and delves into sacrificial materials, surrounding materials, fabrication technologies, and biomedical ...
Jiezhong Shi +7 more
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Physical Intelligence in Small‐Scale Robots and Machines
Advanced Materials, EarlyView.“Physical intelligence” (PI) empowers biological organisms and artificial machines, especially at the small scales, to perceive, adapt, and even reshape their complex, dynamic, and unstructured operation environments. This review summarizes recent milestones and future directions of PI in small‐scale robots and machines.
Huyue Chen, Metin Sitti
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Anti-backlash circuit for hydraulic drive system Patent [PDF]
, 1966 Antibacklash circuit for hydraulic drive ...
Acord, J. D.
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