Results 1 to 10 of about 5,419,465 (349)
Influence of the Motion of a Spring Pendulum on Energy-Harvesting Devices [PDF]
Applied Sciences, 2021 Energy harvesting is becoming more and more essential in the mechanical vibration application of many devices. Appropriate devices can convert the vibrations into electrical energy, which can be used as a power supply instead of ordinary ones. This study investigated a dynamical system that correlates with two devices, namely a piezoelectric device and
Mohamed K. Abohamer +4 more
semanticscholar +6 more sources
Current-induced magnetic superstructures in exchange-spring devices [PDF]
Phys. Rev. B 86, 014436 (2012), 2012 We investigate the potential to use a magneto-thermo-electric instability that may be induced in a mesoscopic magnetic multi-layer (F/f/F) to create and control magnetic superstructures. In the studied multilayer two strongly ferromagnetic layers (F) are coupled through a weakly ferromagnetic spacer (f) by an "exchange spring" with a temperature ...
Mats Jonson +2 more
arxiv +7 more sources
Dynamics of Current Induced Magnetic Superstructures in Exchange-Spring Devices [PDF]
Low Temp. Phys. 38 (7) 626-632 (2012), 2012 Thermoelectric manipulation of the magnetization of a magnetic layered stack in which a low-Curie temperature magnet is sandwiched between two strong magnets (exchange spring device) is considered. Controllable Joule heating produced by a current flowing in the plane of the magnetic stack (CIP configuration) induces a spatial magnetic and thermal ...
Kadigrobov, A.M. +2 more
arxiv +8 more sources
Performance characterization of spring actuated autoinjector devices for Emgality and Aimovig [PDF]
Current Medical Research and Opinion, 2020 Objective: Autoinjectors are a convenient and efficient way to self-administer subcutaneous injections of biopharmaceuticals. Differences in device mechanical design can affect the autoinjector functionality and performance. This study investigates the performance differences of two single-spring-actuated autoinjectors.
Zhongwang Dou +8 more
semanticscholar +5 more sources
Micromachines, 2021 Durability is a critical issue concerning energy-harvesting devices. Despite the energy-harvesting device’s excellent performance, moving components, such as the metal spring, can be damaged during operation.
Jaehoon Kim
doaj +2 more sources
arXiv, 2009 A cylindrical system is proposed that will store magnetic energy in a localized azimuthal field that can then be quickly released on Alfvenic timescales, accompanied by the formation of a flowing Z-pinch plasma. The magnetized plasma is MHD in character and will have unilateral axial momentum with Alfvenic speeds.
Hassam, A. B., Rodgers, J. C.
arxiv +3 more sources
Applied Sciences, 2016 Dual-chamber air springs are used as a key component for vibration isolation in some industrial applications. The working principle of the dual-chamber air spring device as applied to motion suppression of marine structures is similar to that of the ...
Xiaohui Zeng +4 more
doaj +2 more sources
Development of a Spring-Loaded Impact Device to Deliver Injurious Mechanical Impacts to the Articular Cartilage Surface [PDF]
Cartilage, 2013 Objective: Traumatic impacts on the articular joint surface in vitro are known to lead to degeneration of the cartilage. The main objective of this study was to develop a spring-loaded impact device that can be used to deliver traumatic impacts of ...
P. Alexander +6 more
semanticscholar +2 more sources
Sensors, 2022 Almost half of stroke patients report impaired function of the upper limb and hand. Stability of the trunk is required for the proper movement of the body, including the legs and arms. The aim of the study was to analyze the effect of trunk stabilization
Anna Olczak +2 more
doaj +2 more sources