Results 91 to 100 of about 3,002 (288)

Solving the Singularity Problem of Non-Redundant Manipulators by Constaint Optimization

open access: yes, 1999
A solution to the singularity problem of a non-redundant robot is proposed by reformulating the inverse kinematic problem as a constraint optimization problem.
Hirzinger, Gerd   +2 more
core  

Reactionless Control for Two Manipulators Mounted on a Cable-Suspended Platform

open access: yes, 2006
The dynamics and control of a cable-suspended, two-arm robotic system are developed for an entertainment application. One manipulator arm is controlled to fulfil a user defined task. The second arm is then controlled to compensate for the disturbances on
Ralf Koeppe   +7 more
core   +1 more source

Unveiling the Microvasculature: The Index of Microcirculatory Resistance and Its Expanding Role in Cardiovascular Care

open access: yesCatheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Index of microcirculatory resistance (IMR) is a cutting‐edge, wire‐based tool that advances the capability assessment of coronary microvascular function. By utilizing distal coronary pressure and mean transit time under maximal hyperemia, IMR delivers consistent, reproducible insights into the microvasculature's dynamic health.
Joanna Sohn   +10 more
wiley   +1 more source

Multifunctional Design of Solid Polymer Electrolytes: Paving the Way for High‐Performance All‐Solid‐State Batteries

open access: yesCarbon Energy, EarlyView.
This review provides a comprehensive and systematic overview of the multifunctional design strategies for solid polymer electrolytes (SPEs), a pivotal component for enabling high‐performance all‐solid‐state batteries (ASSBs). It begins with a detailed classification of SPE systems and elaborates on their respective molecular design principles. The work
Bin Man   +11 more
wiley   +1 more source

Mass Transport Mechanisms in 2D Laminar Nanofluidic Membranes for Separation and Energy Conversion

open access: yesCarbon Innovation, EarlyView.
This review explores how two‐dimensional laminar membranes govern the transport of ions and molecules in confinement for advanced separation and energy conversion. By discussing how nanochannel architecture shapes membrane performance, this work highlights cation intercalation and functional modifications to improve osmotic energy harvesting ...
Adhy Prihatmiko Wibowo   +3 more
wiley   +1 more source

Design and Analysis of a Novel High-Extension Modular Manipulator for Dexterous and Confined-Space Operations

open access: yesIEEE Access
Conventional rigid-link manipulators are ineffective in cluttered and confined environments, such as in-home assistive care or industrial maintenance, which require high dexterity and adaptability.
Jayant Unde   +4 more
doaj   +1 more source

Visualizing Specific Tubulin Isotypes and Pathogenic Variants in Cellular Microtubule Arrays

open access: yesCytoskeleton, EarlyView.
ABSTRACT Eukaryotic cells depend on dynamic microtubule arrays to execute a wide range of functions vital for life. These microtubule filaments are formed through the polymerization of α/β‐tubulin proteins, which can be generated from numerous tubulin genes, or isotypes.
Sareen Fiaz   +2 more
wiley   +1 more source

Edge Fluid Turbulence Simulations of Stellarators With GRILLIX

open access: yesContributions to Plasma Physics, EarlyView.
ABSTRACT The edge fluid turbulence code GRILLIX has recently been extended from axisymmetric tokamak geometries to support 3D stellarator configurations. Following successful proof‐of‐principle simulations published in Stegmeir et al., we present here a comprehensive simulation of the Wendelstein 7‐AS stellarator.
Andreas Stegmeir   +4 more
wiley   +1 more source

Enhancing hydrogen evolution reaction by harnessing bubble dynamics regulation: Principles, methods, and outlook

open access: yesDroplet, EarlyView.
Bubble dynamics pose critical bottlenecks to hydrogen evolution reaction efficiency, causing active site isolation, increased ohmic resistance, and concentration overpotential, especially at high current densities. This review comprehensively summarizes passive and active bubble manipulation strategies, elucidates their underlying principles, and ...
Ziwei Guo   +10 more
wiley   +1 more source

Local sensor based planning for hyper-redundant manipulator

open access: yes, 1993
: This paper extends a local sensor based planning method for hyper-redundant robot mechanisms. In a previous paper, sensor feedback control methods are considered.
Joel Burdick, Howie Choset
core  

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