Results 31 to 40 of about 232,636 (294)

A mobile robotic chemist [PDF]

open access: yesNature, 2020
Technologies such as batteries, biomaterials and heterogeneous catalysts have functions that are defined by mixtures of molecular and mesoscale components. As yet, this multi-length-scale complexity cannot be fully captured by atomistic simulations, and the design of such materials from first principles is still rare1-5.
Benjamin Burger   +13 more
openaire   +4 more sources

Robust tracking control of two-degrees-of-freedom mobile robots [PDF]

open access: yes, 1993
A robust tracking controller for a mobile robot with two degrees of freedom has been developed. It is implemented and tested on a real mobile robot. Where other controllers show decreasing performance for low reference velocities, the performance of this
Amerongen, J. van, Oelen, W.
core   +5 more sources

Comparative study on the redundancy of mobile single- and dual-arm robots

open access: yesInternational Journal of Advanced Robotic Systems, 2016
A whole resolved motion rate control algorithm designed for mobile dual-arm redundant robots is presented in this article. Based on this algorithm, the end-effector movements of the dual arms of the mobile dual-arm redundant robot can be decomposed into ...
Hongxing Wang   +4 more
doaj   +1 more source

A Comparative Study of Various Intelligent Algorithms based Path Planning for Mobile Robots

open access: yesJournal of Engineering, 2019
In general, path-planning problem is one of most important task in the field of robotics. This paper describes the path-planning problem of mobile robot based on various metaheuristic algorithms. The suitable collision free path of a robot must satisfies
Muna Mohammed Jawad, Esraa Adnan Hadi
doaj   +1 more source

The Design and Development of an Omni-Directional Mobile Robot Oriented to an Intelligent Manufacturing System

open access: yesSensors, 2017
In order to transport materials flexibly and smoothly in a tight plant environment, an omni-directional mobile robot based on four Mecanum wheels was designed.
Jun Qian   +4 more
doaj   +1 more source

Efficient Path Planning for Mobile Robot Based on Deep Deterministic Policy Gradient

open access: yesSensors, 2022
When a traditional Deep Deterministic Policy Gradient (DDPG) algorithm is used in mobile robot path planning, due to the limited observable environment of mobile robots, the training efficiency of the path planning model is low, and the convergence speed
Hui Gong, Peng Wang, Cui Ni, Nuo Cheng
doaj   +1 more source

An assistive robotics control system based on speech semantic recognition [PDF]

open access: yes, 2019
Since 90’s era, many researchers and organizations are working on assistive technologies to ease the disabilities people to move around freely, independence, comfort and have the capabilities to enjoy life to the fullest.
Mohamad, Siti Nur Ateeqa
core  

Virtual Borders: Accurate Definition of a Mobile Robot's Workspace Using Augmented Reality

open access: yes, 2018
We address the problem of interactively controlling the workspace of a mobile robot to ensure a human-aware navigation. This is especially of relevance for non-expert users living in human-robot shared spaces, e.g.
König, Matthias   +2 more
core   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa   +5 more
wiley   +1 more source

A new approach to the kinematic modeling of a three-dimensional car-like robot with differential drive using computational mechanics

open access: yesAdvances in Mechanical Engineering, 2019
This article presents a kinematic analysis of a four-wheeled mobile robot in three-dimensions, introducing computational mechanics. The novelty lies in (1) the type of robot that is analyzed, which has been scarcely dealt with in the literature, and (2 ...
Francisco Rubio   +3 more
doaj   +1 more source

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