Results 291 to 300 of about 301,764 (392)

A Novel Parameter Estimation Method for Pneumatic Soft Hand Control Applying Logarithmic Decrement for Pseudo‐Rigid Body Modeling

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 3, March 2025.
In this research, a paradigm of parameter estimation method for pneumatic soft hand control is proposed. The method includes the following: 1) sampling harmonic damping waves, 2) applying pseudo‐rigid body modeling and the logarithmic decrement method, and 3) deriving position and force control.
Haiyun Zhang   +4 more
wiley   +1 more source

Sliding Guide System Concept for 3D Motion of the Hip Joint in Walking Assist Robots

open access: yesAdvanced Intelligent Systems, EarlyView.
The human hip joint has three degrees of freedom. However, most current walking assist robots only support flexion–extension. As the human femoral head is almost a perfect sphere, the sliding guide system employs two guide plates that contour spherical surfaces.
Naoto Saito   +2 more
wiley   +1 more source

Scan and 3D Print: Magnetic Resonance Imaging‐Guided, Monolithic Desktop Fabrication of Highly Biomimetic Skeletal System of the Human Hand

open access: yesAdvanced Intelligent Systems, EarlyView.
This study introduces a framework to monolithically 3D print highly bioinspired hands, composed of soft and stiff segments, using cost‐effective desktop printers. A magnetic resonance imaging‐informed approach replicates key anatomical features, such as collateral ligaments and volar plates, enabling enhanced functionality and human‐like behavior. This
Gianni Stano   +5 more
wiley   +1 more source

Planning and Control Framework for a Quadruped Robot With Changeable Configuration

open access: yesAdvanced Intelligent Systems, EarlyView.
Multiconfiguration quadruped robots enhance adaptability by switching between mammal‐like and reptile‐like morphologies. This study presents a nonlinear constraint‐based motion planner integrated with a hierarchical whole‐body controller, enabling robust configuration switching and locomotion on complex terrains. Experiments on slopes, irregular bricks,
Guanglin Lu   +5 more
wiley   +1 more source

Synthesis of N‐Substituted 4‐Pyridones From Skipped Diynones via Intramolecular Base or Ag(I)‐Catalyzed Hydroamination

open access: yesAsian Journal of Organic Chemistry, EarlyView.
A general protocol for the synthesis of N‐substituted 4‐pyridones from skipped diynones is presented via a base or Ag(I)‐catalyzed hydroamination pathway. Abstract Cs2CO3 or CF3COOAg catalyze the intramolecular 6‐endo hydroamination of the Z‐enaminones derived from the Michael‐type addition of primary amines to skipped diynones, yielding N‐substituted ...
Elisavet‐Maria Zantioti‐Chatzouda   +4 more
wiley   +1 more source

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