Results 61 to 70 of about 96,216 (303)

Knot Factories with Helical Geometry Enhance Knotting and Induce Handedness to Knots

open access: yesPolymers, 2022
We performed molecular dynamics simulations of DNA polymer chains confined in helical nano-channels under compression in order to explore the potential of knot-factories with helical geometry to produce knots with a preferred handedness. In our simulations, we explore mutual effect of the confinement strength and compressive forces in a range covering ...
Renáta Rusková, Dušan Račko
openaire   +2 more sources

Bioinspired Adaptive Surfaces for Intelligent Liquid Manipulation: Progressing From Passive and Active to Hybrid Strategies

open access: yesAdvanced Materials, EarlyView.
This review examines passive, active, and hybrid liquid manipulation strategies, highlighting hybrid approaches as an emerging route to reconcile energy efficiency with adaptive control. By actively reconstructing passive surfaces to store programmable interfacial energy, hybrid systems enable flexible yet low‐power liquid transport, with perspectives ...
Jiaqi Miao   +3 more
wiley   +1 more source

Návrhy na reformu Rady bezpečnosti OSN

open access: yesČasopis pro Právní Vědu a Praxi, 2001
V rámci současné globální světové politiky nabírá stále více na intenzitě diskuse ohledně nové podoby Organizace spojených národů. Mezi stěžejní body připravované reformy OSN patří budoucí postavení její­ho klíčového orgánu, jež nese primární odpovědnost
Jaroslav Knot
doaj  

Soft Yet Tough Tanglemers Through Rapid Photopolymerization for DLP 3D Printing

open access: yesAdvanced Materials, EarlyView.
Soft yet tough tanglemers are produced through low‐initiator free radical photopolymerization and translated to DLP 3D printing. Systematic control over light intensity, initiator loading, and crosslink density reveals processing windows that balance printability, elasticity, toughness, and feature fidelity. ABSTRACT Additive manufacturing of compliant
Yutong Liu   +5 more
wiley   +1 more source

Deep Eutectic Solvent‐Enhanced PEDOT: PSS/NR Foam Piezoresistive Sensor for High‐Sensitivity Wearable Devices and Sleep Monitoring Applications

open access: yesAdvanced Materials Interfaces, EarlyView.
A high‐performance piezoresistive foam sensor is developed by integrating natural rubber, PEDOT: PSS, and a deep eutectic solvent (DES). DES effectively detaches insulating PSS from PEDOT, dramatically amplifying electrical conductivity and sensitivity.
Shun Zhang   +4 more
wiley   +1 more source

Higher-dimensional knot groups and decision problems

open access: yes, 2020
An $n$-knot is a locally flat PL $n$-sphere in $S^{n+2}$. We show that many decision problems about $n$-knot groups, $n \ge 3$, and groups of closed orientable surfaces in $S^4$, are unsolvable.
Gordon, Cameron
core   +1 more source

A Proof‐of‐Concept Assessment of a Novel Wearable Eyelid Muscle Device: A Pre‐Clinical Animal Cadaver Study for Eyelid Closure Restoration

open access: yesAdvanced Robotics Research, EarlyView.
This article introduces a soft wearable eyelid sling device incorporating a hydraulic soft artificial muscle (SAM) for achieving complete closure of an eyelid. The SAM is driven by a cam mechanism that provides a displacement profile closely matched with those of a healthy eyelid.
Patrick Pruscino   +7 more
wiley   +1 more source

Seifert's algorithm, Châtelet bases and the Alexander ideals of classical knots [PDF]

open access: yes, 2002
I begin by developing a procedure for the construction of a Seifert surface, using Seifert's algorithm, and the calculation of a Seifert matrix for a knot from a suitable encoding of a knot diagram. This procedure deals with the inherent indeterminacy of
O'Brien, Killian Michael
core  

Algorithmic simplification of knot diagrams: new moves and experiments [PDF]

open access: yes, 2016
This paper has an experimental nature and contains no new theorems. We introduce certain moves for classical knot diagrams that for all examples we have tested them on give a monotonic complete simplification.
PETRONIO, CARLO, Zanellati, Adolfo
core   +1 more source

Dynamic deadlock detection under the OR requirement model

open access: yesJournal of Computer Science and Technology, 2003
Deadlock detection is one of the most discussed problems in the literature. Although several al- gorithms have been proposed, the problem is still open.
Alvaro E. Campos   +2 more
doaj  

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