Results 31 to 40 of about 14,987 (302)

Airport pavement roughness evaluation based on cockpit and center of gravity vertical accelerations

open access: yesTransportes, 2020
Rough pavements are generally responsible for vertical accelerations (VA) that can affect the aircraft, increase stopping distance and difficult to read the cockpit instrumentation.
Jorge Braulio Cossío Durán   +1 more
doaj   +3 more sources

Methodology to Quantify Vertical Accelerations of Planing Craft in Irregular Waves

open access: yes, 2010
Planing craft operating in waves at high speeds can experience high, repetitive vertical accelerations that are random and nonlinear in relation to the sea condition.
Grimsley, Jennifer Suzanne
core   +1 more source

An innovative system for uncoupled bending/torsion tests by tri-axis shaker: numerical simulations and experimental results

open access: yesMATEC Web of Conferences, 2018
This work describes a new testing system for applying a coupled/uncoupled bendingtorsion loading in vibratory tests by a tri-axis shaker. The system is composed of a cylindrical specimen with eccentric tip masses, excited by horizontal and/or vertical ...
Zanellati Davide   +2 more
doaj   +1 more source

Effectiveness of a Novel Low‐Density Lipoprotein Apheresis Device Rheocarna in Patients Undergoing Hemodialysis With Chronic Limb‐Threatening Ischemia: A Single‐Center Retrospective Study

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Chronic limb‐threatening ischemia (CLTI) is a severe form of lower‐extremity artery disease characterized by distal lesions and microcirculatory impairment, limiting revascularization efficacy. Rheocarna is a direct hemoperfusion low‐density lipoprotein (LDL) adsorption device with potential rheological and anti‐inflammatory ...
Kunihiro Ishioka   +12 more
wiley   +1 more source

Acceleration-difference-feedback-based decoupling with PID control strategy for active suppression of vehicle

open access: yesAdvances in Mechanical Engineering
This study addresses the issue of vertical-pitch dynamic coupling in active suspension systems caused by traditional velocity-feedback control. We introduce a novel ADF-PID control strategy that combines acceleration difference feedback (ADF) decoupling ...
Xiao-Peng Wang, Long Wu, Chi-Hsin Yang
doaj   +1 more source

Acceleration Amplitude of the Vertical Component of Colombian Earthquakes

open access: yesCiencia e Ingeniería Neogranadina, 2022
Past studies have demonstrated that the vertical earthquake component can substantially affect the seismic performance of bridges and buildings. This component is typically ignored or, when included in the design, is estimated as two-thirds of the horizontal seismic design earthquake.
José M. Benjumea   +3 more
openaire   +4 more sources

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

open access: yesFEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee   +3 more
wiley   +1 more source

Methodology for evaluating the dynamic parameters of the rubber-cord shell of a high-speed rolling stock pneumatic spring in the wheel-frog interaction of a railroad switch

open access: yesArchives of Transport
The object of research is a pneumatic spring of the spring suspension system for high-speed railway rolling stock. A methodology for full-scale dynamic testing of a pneumatic spring of high-speed rolling stock when interacting with a rail track has been
Andrii Kuzyshyn   +5 more
doaj   +1 more source

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

open access: yesFEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei   +3 more
wiley   +1 more source

Peak ground motions and characteristics of nonlinear site response during the 2018 Mw 6.6 Hokkaido eastern Iburi earthquake

open access: yesEarth, Planets and Space, 2019
The observed peak ground accelerations and peak ground velocities (PGVs) of the 2018 Mw 6.6 Hokkaido eastern Iburi earthquake generally followed the median values from ground motion prediction equations with reasonable errors at fault distances ≥ 50 km ...
Yadab P. Dhakal   +4 more
doaj   +1 more source

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