Results 41 to 50 of about 830,301 (276)

Extreme value prediction of the roll motion under random seas

open access: yesZhongguo Jianchuan Yanjiu
ObjectiveIn this work, two stability failure models, i.e., the dead ship condition and parametric roll are selected in order to study and evaluate ship stability as well as safety at seas.
Jie ZHU, Zailiang LIU, Yan LIN, Wei CHAI
doaj   +1 more source

Deep Learning Pose Estimation for Phenotyping of Co‐Occurring Hyperkinetic Movement Disorders

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To explore whether routine outpatient video combined with deep learning‐based pose estimation and clinically interpretable kinematic features can support multi‐label phenotyping of co‐occurring hyperkinetic movement disorders (HMDs).
Laura Cif   +17 more
wiley   +1 more source

A Generative AI Model for irregular wave conditions that induce parametric roll

open access: yesApplied Ocean Research
Parametric roll is a nonlinear and intermittent dynamical phenomenon that causes damage to or loss of cargo, and poses significant risks for passenger safety and comfort.
Kevin J. Maki   +3 more
doaj   +1 more source

Motion analysis of suturing technique with Leap Motion Controller. Proof-of-concept

open access: yesScience Progress, 2022
Purpose Leap Motion Controller is a device that can capture hand gestures and reproduce these as data comprising several parametric elements. We analyzed surgical suture motion using this device and investigated the optical methodology for clinical ...
Shota Tsuyuki   +6 more
doaj   +1 more source

Optimization Procedure and Toolchain for Roll Dynamic Geometry

open access: yesMachines, 2022
In rolls manufactured from first bent and then welded sheets of steel, the asymmetric distribution of mass due to the weld seam as well as imperfections of the geometry due to the bending may cause the roll cross-section roundness profiles to deform due ...
Tuomas Tiainen   +2 more
doaj   +1 more source

Gravity‐Dependent Modulation of Downbeat Nystagmus: Insights From Velocity‐Storage Dysfunction

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Downbeat nystagmus varies with head position, a phenomenon termed gravity‐dependent modulation. We aimed to clarify its mechanism using a velocity‐storage model. Methods In 10 patients with downbeat nystagmus due to cerebellar disorders, we recorded eye movements at different pitch‐ and roll‐axis head positions.
Ji‐Hyung Park   +5 more
wiley   +1 more source

Optimization design of a novel X-type six-high rolling mill based on maximum roll system stiffness.

open access: yesPLoS ONE, 2020
The present investigation devices a novel X-type six-high (X-6h) mill. In addition, parametric models of different roll layouts such as the four-high (4-h), I-type six-high (I-6h), and X-6h mills are established. Three-dimensional (3D) finite element (FE)
Liping Wang, Qingyu Zhu, Hongyang Zhao
doaj   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth   +6 more
wiley   +1 more source

Stability of rigid and deformable roll coating flows [PDF]

open access: yes, 2001
This thesis is concerned with developing suitable models for the investigation of instabilities in rigid and deformable roll coating flows. Consideration is restricted to Newtonian, incompressible fluids in the absence of inertia.
Gostling, Martin John
core   +6 more sources

Frequency-motivated observer design for the prediction of parametric roll resonance control applications in marine systems

open access: yes, 2007
This work deals with estimators for predicting when parametric roll resonance is going to occur in surface vessels. The roll angle of the vessel is modeled as a second-order linear oscillatory system with unknown parameters.
Fossen, Thor I.   +5 more
core   +1 more source

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