Results 51 to 60 of about 2,061,051 (213)

Novelty for the flora of Espírito Santo, Brazil: a new species of Ouratea Aubl. (Ochnaceae)

open access: yesNordic Journal of Botany, EarlyView.
Here, we describe and illustrate the new species Ouratea oberdanii Fraga & Deccache, which is named after Dr Oberdan José Pereira. This new species is found in the mountainous regions of the evergreen Atlantic Forest in the Brazilian state of Espírito Santo. Ouratea oberdanii is similar to O. linearis (A.Gray) Sastre & Offroy and O.
Lara Serpa Jaegge Deccache   +4 more
wiley   +1 more source

Actuation Strategies for Underwater Jet‐Propelled Soft Robots

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT This review article examines jet‐propulsion mechanisms in underwater soft robotic systems, focusing exclusively on physically fabricated and experimentally validated robots. Covering research published from 2013 to 2025, this study classifies and evaluates jet‐propulsion robots based on their actuation mechanisms.
Angel Kitone   +3 more
wiley   +1 more source

Lubricated revolute joints in rigid multibody systems [PDF]

open access: yesNonlinear Dynamics, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Flores, Paulo   +4 more
openaire   +3 more sources

A Design Specifications Template for Wearable Haptic Interfaces: A Case Study for Robotic Gripper Applications

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT Wearable haptic interfaces are increasingly important for enhancing human robot collaboration, particularly in decision critical tasks that require intuitive and reliable interaction. Despite advances in wearable systems, existing designs often lack a structured framework that systematically integrates sensing, actuation, control, and user ...
Amr M. El‐Sayed
wiley   +1 more source

Kineto-static Analysis of Planetary Gear Train based on Vector Bond Graph Method

open access: yesJixie chuandong, 2016
For the problem of kineto- static analysis for planetary gear train,the corresponding vector bond graph procedure is proposed. Based on the kinematic constraint condition of planar compound revolute joint,the procedure for modeling planar compound ...
Wang Zhongshuang, Jing Weike
doaj  

Ploidy‐Level, Spore Size, and Morphological Variation of Plagiogyria adnata (Plagiogyriaceae) Along an Elevational Cline on Yakushima Island, Japan

open access: yesNew Zealand Journal of Botany, Volume 64, Issue 2, June 2026.
Yakushima Island is a major biodiversity hotspot where complex environmental gradients and high endemism provide an ideal setting for studying plant evolution. In this study, we investigated the relationships among ploidy variation, morphology, and environmental factors in populations of Plagiogyria adnata, including the variety P.
Diego Tavares Vasques   +4 more
wiley   +1 more source

Design and Optimization of an Adaptive Knee Joint Orthosis for Biomimetic Motion Rehabilitation Assistance

open access: yesBiomimetics
In this paper, an adaptive knee joint orthosis with a variable rotation center for biomimetic motion rehabilitation assistance suitable for patients with knee joint movement dysfunction is designed. Based on the kinematic information of knee joint motion
Kun Liu   +4 more
doaj   +1 more source

A review of friction models in interacting joints for durability design

open access: yesFriction, 2017
This paper presents a comprehensive review of friction modelling to provide an understanding of design for durability within interacting systems. Friction is a complex phenomenon and occurs at the interface of two components in relative motion.
Zulfiqar A. Khan   +2 more
doaj   +1 more source

Data‐Driven Modeling of Forces Exerted by Pneumatic Actuators for a Pediatric Exosuit

open access: yesAdvanced Intelligent Systems, Volume 8, Issue 5, May 2026.
This work presents the experimental analysis and data‐driven modeling of the interaction forces between soft pneumatic actuators designed to assist upper‐extremity motion in a pediatric exosuit and an engineered test rig, across different experimental conditions: (A) force profiling of shoulder actuators, with varying actuator anchoring points and ...
Mehrnoosh Ayazi   +4 more
wiley   +1 more source

RELIABILITY ANALYSIS OF REACTION FORCE DEVELOPED IN THE LUBRICATED REVOLUTE JOINT FOR A SLIDER-CRANK SYSTEM INCLUDING JOINT WITH CLEARANCE AND LUBRICATION

open access: yesJixie qiangdu, 2017
The reliability of the reaction force developed in the lubricated revolute joint for a slider-crank system considering realistic joint characteristic,namely,joint with clearance and lubrication in the revolute pair,and the randomness of the system ...
ZHAO Kuan   +3 more
doaj  

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