Results 21 to 30 of about 496 (184)

Semi-Active Control of the Sway Dynamics for Elevator Ropes

open access: yesCoRR, 2015
In this work we study the problem of rope sway dynamics control for elevator systems. We choose to actuate the system with a semi-active damper mounted on the top of the elevator car. We propose nonlinear controllers based on Lyapunov theory, to actuate the semi-active damper and stabilize the rope sway dynamics.
openaire   +2 more sources

Dynamic Response of Multiconnected Floating Solar Panel Systems with Vertical Cylinders

open access: yesJournal of Marine Science and Engineering, 2022
In this study, the dynamic response of a multiconnected floating solar panel system with a vertical pontoon were studied under various scenarios. First, a floating solar panel pontoon is modeled by combining nine single-unit vertical cylinders (arranged ...
Jihun Song   +4 more
doaj   +1 more source

Free vibration analysis of a string with vibration suppressor located at 1/N of the string (When N is an even number)

open access: yesNihon Kikai Gakkai ronbunshu, 2016
When an elevator rope for a high-rise building is forcibly excited by the displacements of the building induced by wind forces and/or by long-period ground motion, rope displacement becomes large even if the ground acceleration and the buildings ...
Hiroyuki KIMURA
doaj   +1 more source

Large Igneous Provinces (LIPs) and Anoxia Events in “The Boring Billion”

open access: yesGeophysical Monograph Series, Page 449-486., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Shuan‐Hong Zhang   +4 more
wiley  

+1 more source

Free vibration analysis of a string with vibration suppressor located at center of the string (When gap between string and vibration suppressor is zero)

open access: yesNihon Kikai Gakkai ronbunshu, 2015
When an elevator rope for a high-rise building is forcibly excited by the displacements of the building induced by wind forces and/or by long-period ground motion, rope displacement becomes large even if the ground acceleration and the buildings ...
Hiroyuki KIMURA
doaj   +1 more source

Clinically Relevant Bleeding in Individuals With Cancer: Insights From a Nationwide Cohort Study

open access: yesAmerican Journal of Hematology, EarlyView.
ABSTRACT Cancer care is often complicated by coagulopathy leading to thrombosis and bleeding. While venous thromboembolism (VTE) has been extensively studied, bleeding remains an underestimated threat. To address this knowledge gap, we leveraged the Epic Cosmos database to determine the impact of cancer‐associated clinically relevant bleeding (CRB) in ...
Ming Y. Lim   +11 more
wiley   +1 more source

Free vibration analysis of string with vibration suppressors located in center part of string

open access: yesMechanical Engineering Journal, 2016
Vibration suppressors are used to change the natural frequency of an elevator rope and prevent resonance. The displacement of the parts of the elevator rope at both the ends is small compared to that of the center part of the rope; therefore, it is not ...
Hiroyuki KIMURA, Takahiro FUJITANI
doaj   +1 more source

Does observation of postural imbalance induce a postural reaction? [PDF]

open access: yesPLoS ONE, 2011
BACKGROUND: Several studies bring evidence that action observation elicits contagious responses during social interactions. However automatic imitative tendencies are generally inhibited and it remains unclear in which conditions mere action observation ...
Banty Tia   +5 more
doaj   +1 more source

A detailed redescription of a skeletally immature ‘Redondasaurus’ suggests ontogenetic transformations in the taxon mirror phytosaurian morphological evolution

open access: yesThe Anatomical Record, EarlyView.
Abstract The study of morphological evolution is fundamentally tied to ontogeny, yet studies of these heterochronic processes in the fossil record are rare. Fossils belonging to an ontogenetic series are difficult to assign to an ontogenetic stage due to inconsistent proxies for skeletal ages, challenging to taxonomically assign due to morphological ...
Erika R. Goldsmith, Michelle R. Stocker
wiley   +1 more source

Free vibration analysis of elevator rope with vibration suppressors located except for both ends part

open access: yesNihon Kikai Gakkai ronbunshu, 2017
Vibration suppressors are used to change the natural frequency of an elevator rope and prevent resonance. The displacement of the parts of the elevator rope at both the ends is small compared to that of the center part of the rope; therefore, it is not ...
Hiroyuki KIMURA, Takahiro FUJITANI
doaj   +1 more source

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