Results 81 to 90 of about 30,323 (260)

Motion and Morphology Planning for Autonomous Manipulation in Clutter With a Shape‐Shifting, Variable‐Stiffness Robot

open access: yesAdvanced Intelligent Systems, EarlyView.
A hybrid mobile robot with a modular Variable‐Stiffness Bridge transitions between a rigid locomotion platform and a flexible, shape‐conforming body. By enclosing objects within its deformable structure rather than relying on dedicated end effectors, the robot achieves orientation‐regulated planar transport, with conformal contact quality shown to ...
Luiza Labazanova   +5 more
wiley   +1 more source

A Note on Nonlocal Boundary Value Problems for Hyperbolic Schrödinger Equations

open access: yesAbstract and Applied Analysis, 2012
The nonlocal boundary value problem 𝑑2𝑢(𝑡)/𝑑𝑡2+𝐴𝑢(𝑡)=𝑓(𝑡)(0≤𝑡≤1), 𝑖(𝑑𝑢(𝑡)/𝑑𝑡)+𝐴𝑢(𝑡)=𝑔(𝑡)(−1≤𝑡≤0), 𝑢(0+)=𝑢(0−), 𝑢𝑡(0+)=𝑢𝑡(0−), 𝐴𝑢(−1)=𝛼𝑢(𝜇)+𝜑 ...
Yildirim Ozdemir, Mehmet Kucukunal
doaj   +1 more source

ON THE EXISTENCE OF POSITIVE DEFINITE SOLUTIONS OF A NONLINEAR MATRIX EQUATION

open access: yesTaiwanese Journal of Mathematics, 2014
In this paper the nonlinear matrix equation $X-\sum\limits_{i=1}^{m}A_{i}^*X^{-p_{i}}A_{i}=Q $ with $p_{i}>0$ is investigated. Necessary and sufficient conditions for the existence of Hermitian positive definite solutions are obtained. An effective iterative method to obtain the unique solution is established.
Li, Jing, Zhang, Yuhai
openaire   +2 more sources

Contact Force Estimation in Human–Robot Collaboration: A Case Study on Heavyweight Robotic Manipulators

open access: yesAdvanced Intelligent Systems, EarlyView.
The method presented in this paper provides a practical sensorless solution for estimating both contact force and contact location using only standard joint encoders and an available robot dynamic model. By reformulating the contact estimation problem using a single scalar equivalent contact parameter, the approach enables fast and robust computation ...
Thanh‐Quan Ta, Shyh‐Leh Chen
wiley   +1 more source

The EXPLAIN Study: Exploring Arthrogryposis Multiplex Congenita in Adults in Norway — A Description of Demographic, Medical, and Neurological Findings

open access: yesAmerican Journal of Medical Genetics Part C: Seminars in Medical Genetics, EarlyView.
ABSTRACT Arthrogryposis Multiplex Congenita (AMC) encompasses several hundred conditions with diverse genetic, pathophysiological, and clinical origins. The overarching EXPLAIN study explores underlying causes and implications of AMC and represents the largest clinical cohort of adults with AMC reported to date.
My Vuong Hermansen   +5 more
wiley   +1 more source

The re-positive definite solutions to the matrix inverse problemAX=B

open access: yesLinear Algebra and its Applications, 1992
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

‘Turkeys Cannot Vote for Christmas’: Why Epistemic Disobedience in an Anti‐Black World Matters

open access: yesAustralian Journal of Social Issues, EarlyView.
ABSTRACT Never in the history of global coloniality has the idea of epistemic disobedience been as important as in the 21st century. This is not only because the struggle for decolonisation has shifted from physical confrontation between the coloniser and the colonised into a battle of ideas but also because the former has deployed the idea of ...
Morgan Ndlovu
wiley   +1 more source

Multiple homoclinic solutions for superquadratic Hamiltonian systems

open access: yesElectronic Journal of Differential Equations, 2016
In this article we study the existence of infinitely many homoclinic solutions for a class of second-order Hamiltonian systems $$ \ddot{u}-L(t)u+W_u(t,u)=0, \quad \forall t\in\mathbb{R}, $$ where L is not required to be either uniformly positive ...
Wei Jiang, Qingye Zhang
doaj  

Metrics over multi-parameter AdS vacua

open access: yesJournal of High Energy Physics
We study the notion of a distance between different AdS vacua of string theory. The distance is measured by a metric that is derived by taking an off-shell quadratic variation of the effective action, and evaluating it over families of vacua.
Eran Palti, Nicolò Petri
doaj   +1 more source

Nonrecursive solution for the discrete algebraic Riccati equation and X + A*X-1A=L

open access: yesOpen Mathematics, 2015
In this paper, we present two new algebraic algorithms for the solution of the discrete algebraic Riccati equation. The first algorithm requires the nonsingularity of the transition matrix and is based on the solution of a standard eigenvalue problem for
Adam Maria, Assimakis Nicholas
doaj   +1 more source

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