Results 51 to 60 of about 167,242 (280)

A Study on the Efficiency in the Energy Harvesting Device Using Resonance of Pendulum

open access: yesApplied Sciences, 2022
Recently, increased public interest in pollution caused by fossil fuels has prompted studies on various renewable energy sources. As it is important to ensure power generation efficiency in energy harvesting, research in this area continues.
Hyunsu Kim, Sangwoo Lee
doaj   +1 more source

Combined Superior Capsular Reconstruction and Lower Trapezius Transfer Using an Achilles Tendon Allograft Show Better Clinical Outcomes and Lower Graft Tear Rates Versus Isolated Superior Capsular Reconstruction for Chronic Posterosuperior Irreparable Massive Rotator Cuff Tears With Severe Fatty Infiltration in the Infraspinatus

open access: yesArthroscopy, EarlyView.
Purpose To compare the surgical outcomes of superior capsular reconstruction (SCR) combined with lower trapezius transfer (LTT) using an Achilles tendon allograft versus isolated SCR for the treatment of posterosuperior irreparable massive rotator cuff tears with severe infraspinatus fatty infiltration (Goutallier grades 3‐4).
Hui Ben   +3 more
wiley   +1 more source

Meniscus Injury and its Surgical Treatment Does not Increase Initial Whole Knee Joint Friction

open access: yesFrontiers in Bioengineering and Biotechnology, 2021
While it is generally accepted that traumatic meniscus pathologies lead to degenerative articular cartilage changes in the mid-to long-term and consecutively to post-traumatic osteoarthritis (PTOA), very little is known about how such injuries initiate ...
Luisa de Roy   +6 more
doaj   +1 more source

A compatibility criterion for optimal control and information aggregation in hierarchical network systems

open access: yesAsian Journal of Control, EarlyView.
Abstract Large swarms often adopt a hierarchical network structure that incorporates information aggregation. Although this approach offers significant advantages in terms of communication efficiency and computational complexity, it can also lead to degradation due to information constraints.
Kento Fujita, Daisuke Tsubakino
wiley   +1 more source

Estudo do amortecimento do pêndulo simples: uma proposta para aplicação em laboratório de ensino

open access: yesRevista Brasileira de Ensino de Física
Os pêndulos são muito empregados nas atividades de ensino de cursos introdutórios de física. Nessas atividades, frequentemente, faz-se uso de modelos ideais para estudar o comportamento do pêndulo.
Francisco José Arnold   +4 more
doaj   +1 more source

Stabilization of the pendulum on a rotor arm by the method of controlled Lagrangians [PDF]

open access: yes, 1999
Obtains feedback stabilization of an inverted pendulum on a rotor arm by the “method of controlled Lagrangians”. This approach involves modifying the Lagrangian for the uncontrolled system so that the Euler-Lagrange equations derived from the modified or
Bloch, Anthony M.   +2 more
core  

Radial Forcing and Edgar Allan Poe's Lengthening Pendulum

open access: yes, 2013
Inspired by Edgar Allan Poe's The Pit and the Pendulum, we investigate a radially driven, lengthening pendulum. We first show that increasing the length of an undriven pendulum at a uniform rate does not amplify the oscillations in a manner consistent ...
Blasing, David   +2 more
core   +1 more source

Arthroscopic‐Assisted Triple‐Bundle Reconstruction for Acromioclavicular Joint Dislocation

open access: yesArthroscopy Techniques, EarlyView.
Abstract This article describes a practical technique for treating acute and chronic acromioclavicular joint dislocations. With the aid of intraoperative arthroscopy, tunnels were drilled on the clavicle and coracoid process, and Tightrope and Endobutton devices were introduced to anatomically reconstruct the conoid and trapezoid ligaments ...
Tianhao Zhu   +6 more
wiley   +1 more source

Combining Fungicides and Prospective NPR1-Based “Just-in-Time” Immunomodulating Chemistries for Crop Protection

open access: yesFrontiers in Plant Science, 2017
Each year, crop yield is lost to weeds competing for resources, insect herbivory and diseases caused by pathogens. To thwart these insults and preserve yield security and a high quality of traits, conventional agriculture makes use of improved cultivars ...
Xiahezi Kuai   +2 more
doaj   +1 more source

The Impact of Pictorial Display on Operator Learning and Performance [PDF]

open access: yes, 1984
The effects of pictorially displayed information on human learning and performance of a simple control task were investigated. The controlled system was a harmonic oscillator and the system response was displayed to subjects as either an animated ...
Jagacinski, R. J.   +2 more
core   +1 more source

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