Results 41 to 50 of about 156,630 (288)

Spatial Kinematic Analysis of Double 4-Link Coupler Used in Low-Floor Tram Powertrains

Archive of Mechanical Engineering, 2016
The paper presents kinematic characteristics of the double 4-link coupler system, used in actual powertrain of low-floor trams (NGT6-Kr). The spatial kinematic model of the couplings was formulated assuming ideal joints and rigid members. The constraints
Maniowski Michał, Czauderna Tomasz
doaj   +1 more source

coal mine robot; path planning; membrane computing; Informed RRT* algorithm; MC-IRRT* algorithm; multi-step search; parallel search

Gong-kuang zidonghua, 2021
In order to solve the problem of inaccurate estimation and poor robustness of image Jacobian matrix based on traditional Kalman filtering (KF) in the uncalibrated visual servo control of mine intelligent inspection robot, Kalman filtering algorithm with ...
LI Jing, HUANG Yourui, HAN Tao, LAN Shihao, CHEN Hongmao, GAN Fubao   +5 more
doaj   +1 more source

Pattern Formation in Non‐Equilibrium Architected Materials

Advanced Materials Technologies, EarlyView.
This article demonstrates an artificial mechanical system ‐ a robotic metamaterial ‐ as an accessible and versatile platform within which to explore and prescribe the reaction‐diffusion driven pattern formation hitherto associated with comparatively less accessible and versatile non‐equilibrium biological and chemical systems.
Vinod Ramakrishnan, Michael J. Frazier
wiley   +1 more source

Inverse Kinematic Algorithm with Newton-Raphson Method iteration to Control Robot Position and Orientation based on R programming language

IJCCS (Indonesian Journal of Computing and Cybernetics Systems), 2023
The homogeneous transform program is a function used to calculate the homogeneous transformation matrix at a specific position and orientation of a three-link manipulator.
Ruben Cornelius Siagian, Lulut Alfaris, Ruben Cornelius Siagian   +2 more
doaj   +1 more source

Indecomposability of polynomials via Jacobian matrix

Journal of Algebra, 2010
A multivariate polynomial is called decomposable if it can be written as a composition of a univariate polynomial of degree \(\geq 2\) and a multivariate polynomial. In the first section, deomposability is characterized by a rank condition of the so-called Jacobi-matrix of the polynomial. For characteristic zero, this criterion can be found in [\textit{
Chèze, Guillaume, Najib, S.
openaire   +4 more sources

Development of Laterally Graded X‐Ray Multilayer Optics

Advanced Materials Technologies, EarlyView.
This work presents the development of laterally graded X‐ray multilayer optics with both constant and variable lateral gradients. By precisely controlling substrate speed profiles and mask design, these multilayers achieve highly accurate lateral gradients and excellent sagittal thickness uniformity, making them ideal for spectroscopy application at ...
Arindam Majhi, Wadwan Singhapong, Wai Jue Tan, Andrey Sokolov, Stefano Agrestini, Mirian Garcia‐Fernandez, Kejin Zhou, Andrew C. Walters, Chris Bowen, Alexander J.G. Lunt, Hongchang Wang, Kawal J. Sawhney   +11 more
wiley   +1 more source

Applications of a noncommutative jacobian matrix

Journal of Pure and Applied Algebra, 1992
Let \(F=k\langle \langle X \rangle \rangle\) be the free power series ring in a set \(X\) over a field \(k\), and for any \(x \in X\) and \(f \in F\) denote by \(x^{-1}f\) the right cofactor of \(x\) in \(f\). If \(X,Y\) are any non- empty sets of cardinals \(\alpha,\beta\) respectively and \(\varphi:k\langle \langle X\rangle \rangle \to k \langle ...
openaire   +2 more sources

Multiobjective Codesign Optimization of a Planar Pneumatic Artificial Muscle‐Based Snake‐Like Robot for Enhanced Agility and Energy Efficiency

Advanced Robotics Research, EarlyView.
A codesign multiobjective optimization framework was developed to enhance the morphology and controller of a snake‐like robot driven by artificial muscles. It improved planar locomotion, agility, and power efficiency. The approach optimized link geometry and controller gains, revealing that shorter muscles near joints and longer linkages maximize ...
Ayla Valles, Mahdi Haghshenas‐Jaryani
wiley   +1 more source

Inserting the tap values of the tap changer transformers into the Jacobian matrix as control variables

Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2013
Series and shunt admittance values of under load tap changer transformers are changed according to tap changing. As this situation changes the structure of bus admittance matrix, it causes the need of rebuilding the bus admittance matrix at each tap ...
Faruk Yalçın, Uğur Arifoğlu
doaj   +1 more source

Material‐Induced Nuclear Deformation Controls Chromatin Architecture in Adipose Stem Cells

Advanced Science, EarlyView.
Tuning cell and cytoskeleton mechanics modulated nuclear shape and heterochromatin organization in ASCs. Distinct cytoskeletal architectures induced nuclear morphologies from oblate to prolate ellipsoids. Large elongated cells with a structured actin cap exhibited high nuclear strain, driving nuclear envelope deformation and heterochromatin ...
Carlo F. Natale, Luca Messina, Valeria Panzetta, Stefania Saporito, Costantino Menna, Maurizio Ventre, Paolo A. Netti   +6 more
wiley   +1 more source