Results 1 to 10 of about 26,398 (263)

The Sequence (S) index as a marker of diminished step-to-step transition efficiency in older adults [PDF]

Frontiers in Human Neuroscience
IntroductionAge-related declines in walking efficiency are often attributed to musculoskeletal and neuromuscular changes, yet the mechanisms underlying these inefficiencies remain poorly understood.
Elham Alijanpour, Ashwini Kulkarni, Peter G. Adamczyk, Daniel M. Russell   +3 more
doaj   +2 more sources

A Simple Critical Response Evaluation Method for Base-Isolation Building-Connection Hybrid System Under Double Impulse as Representative of Near-Fault Ground Motion

Frontiers in Built Environment, 2021
We revisit a unique building system including a base-isolation, building-connection hybrid control system. The base-isolation system withstands pulse-type earthquake ground motions effectively and the building-connection system resists long-duration ...
Tomoya Nakamura, Kohei Fujita, Izuru Takewaki   +2 more
doaj   +1 more source

Research on the Inducing Mechanism of Customers’ Impulsive Buying in “Double 11” Shopping Carnival [PDF]

SHS Web of Conferences, 2022
In recent years, impulse buying is increasingly common in China. Online impulse buying (OIB) has drawn increasing scholarly attention across disciplines.
Zuo Weiwei, Lian Zhihua
doaj   +1 more source

Optimal Seismic Design of Stiffness and Gap of Hysteretic-Viscous Hybrid Damper System in Nonlinear Building Frames for Simultaneous Reduction of Interstory Drift and Acceleration

Frontiers in Built Environment, 2021
The viscous-hysteretic hybrid (HVH) damper system recently introduced by one of the authors has a clear property that, when the hysteretic dampers with gap mechanism become active (stiffness element starts working), the acceleration of building frames ...
Soichiro Ishida, Izuru Takewaki
doaj   +1 more source

Bounding of earthquake response via critical double impulse for efficient optimal design of viscous dampers for elastic‐plastic moment frames

Japan Architectural Review, 2022
An input velocity adjustment method of the critical double impulse (DI) is presented for efficient design of viscous dampers for elastic‐plastic moment frames.
Hiroki Akehashi, Izuru Takewaki
doaj   +1 more source

Critical Response of High-Rise Buildings With Deformation-Concentration Seismic Control System Under Double and Multi Impulses Representing Pulse-Type and Long-Duration Ground Motions

Frontiers in Built Environment, 2021
The critical responses are investigated for a high-rise building with a deformation-concentration seismic control system under double and multi impulses representing pulse-type and long-duration ground motions, respectively.
Akira Kawai, Tatsuhiko Maeda, Tatsuhiko Maeda, Izuru Takewaki   +3 more
doaj   +1 more source

Hysteretic–Viscous Hybrid Damper System for Long-Period Pulse-Type Earthquake Ground Motions of Large Amplitude

Frontiers in Built Environment, 2020
This paper aims to develop a hysteretic–viscous hybrid (HVH) damper system for long-period pulse-type earthquake ground motions of large amplitude.
Shoki Hashizume, Izuru Takewaki
doaj   +1 more source

Simultaneous Optimization of Elastic-Plastic Building Structures and Viscous Dampers Under Critical Double Impulse

Frontiers in Built Environment, 2020
A new method for simultaneous optimal design of main building structures and viscous dampers is proposed for elastic-plastic multi-degree-of-freedom (MDOF) building structures subjected to the critical double impulse which is regarded as a representative
Hiroki Akehashi, Izuru Takewaki
doaj   +1 more source

Critical response of 2DOF elastic-plastic building structures under double impulse as substitute of near-fault ground motion

Frontiers in Built Environment, 2016
The double impulse is introduced as a substitute of the fling-step near-fault ground motion and a critical elastic-plastic response of a 2DOF (two-degree-of-freedom) building structure under the ‘critical double impulse’ is evaluated.
Ryo eTaniguchi, Kotaro eKojima, Izuru eTakewaki   +2 more
doaj   +1 more source

Critical Response of Single-Degree-of-Freedom Damped Bilinear Hysteretic System under Double Impulse As Substitute for Near-Fault Ground Motion

Frontiers in Built Environment, 2018
A double impulse input is used as a substitute for near-fault earthquake ground motions. An explicit expression is derived on the maximum elastic–plastic response of a single-degree-of-freedom damped structure with bilinear hysteresis under the “critical
Hiroki Akehashi, Kotaro Kojima, Izuru Takewaki   +2 more
doaj   +1 more source