Results 81 to 90 of about 2,228 (211)

Can Elastomers Combine Stiffness, Toughness and Fatigue Resistance?

open access: yesAdvanced Materials, EarlyView.
This review studies how the molecular and macroscopic architecture of elastomers influence their mechanical properties including: stiffness, stretchability, toughness, fatigue resistance, and damping behavior. By linking the structure to performance, it proposes design principles for advanced elastomeric systems that combine mechanical properties ...
Eva Baur, Esther Amstad
wiley   +1 more source

Evolving towards a European administration of the issues of Freedom, Security and Justice

open access: yesRevista CIDOB d'Afers Internacionals, 2010
Building Europe is a process that, for 50 years, has been characterised by a high degree of uncertainty, guided more by pragmatism than by ideological or dogmatic factors.
Pablo Acosta Galo
doaj  

The minimum freedom and human nature in the ideas of I. Berlin [PDF]

open access: yesAnnales Scientia Politica, 2018
The paper is focused on the issue of connecting the minimum freedom and human nature in the ideas of Isaiah Berlin. Its content is conceived as an attempt to express the position of minimal freedom in the Berlin concept and as analysis of the typology of
Magdaléna Steinhauser Wesserlová
doaj  

Alloying‐Controlled Tuning of Interfacial Spin‐Orbit Interaction and Magnetic Damping in Crystalline FeCo Thin Films Grown on GaAs(001)

open access: yesAdvanced Materials, EarlyView.
The interfacial spin‐orbit interaction in single‐crystalline Fe1−xCox thin films grown on GaAs(001) can be continuously tuned via alloying. Using spin‐orbit ferromagnetic resonance, the authors find that the interfacial spin‐orbit fields exhibit a nonmonotonic dependence on Co concentration, with a minimum at 20% Co. ABSTRACT The discovery of intrinsic
Hongrui Lao   +9 more
wiley   +1 more source

El Espacio Schengen y la reinstauración de los controles en las fronteras interiores de los Estados miembros de la Unión Europea [PDF]

open access: yesRevista d'Estudis Autonòmics i Federals, 2012
Traditionally, by virtue of their sovereignty, the control of migratory flowswas an exclusive competence of the EU members. Nevertheless, the Conventionthat is implementing the Schengen Agreement, which came into forcein 1995, meant both the effective ...
Andreu Olesti Rayo
doaj  

Parity‐Dependent THz Harmonic Generation in Electrically Pumped Micro‐Lasers Exploiting Topological Insulator–Metamaterial Gratings

open access: yesAdvanced Materials, EarlyView.
Topological insulator–metamaterials integrated with electrically driven terahertz quantum cascade lasers enable parity‐dependent harmonic generation. Bulk‐dominated Bi2Se3 favors third‐harmonic emission at 9.96 THz, whereas topological‐surface‐state‐dominated Bi2Se3, Bi2Te3, and (Bi,Sb)2Te3 generate strong second harmonics near 6.5 THz.
Alessandra Di Gaspare   +9 more
wiley   +1 more source

Sub‐nm2 Ferroelectric Domains via Charged 180° Walls in ZrO2

open access: yesAdvanced Materials, EarlyView.
Ferroelectric ZrO2${\rm ZrO}_2$ thin films host closely spaced charged 180∘$^{\circ }$ domain walls that vertically compress polar domains beyond their lateral half‐unit‐cell limit. These head‐to‐head and tail‐to‐tail walls show distinct bulk‐like structures, natural oxygen‐mediated stabilization, and highly asymmetric mobility, highlighting new ...
Nashrah Afroze   +33 more
wiley   +1 more source

Seamless Mechanical Programming Through Hybrid Epoxy–Acrylate Printing for Soft–Rigid Robots

open access: yesAdvanced Materials, EarlyView.
Hybrid epoxy‐acrylate printing enables seamless fabrication of soft–rigid robotic systems with covalently integrated interfaces and functionally graded mechanics. Grayscale exposure expands the accessible material space, enabling spatially programmed actuation through patterned stiffness while revealing the mechanics and durability of continuously ...
David C. Bershadsky   +3 more
wiley   +1 more source

The area of freedom,security and justice in the European Union [PDF]

open access: yes, 2009
The primary aim of the thesis was to examine the realisation of the Area of freedom, security and justice in the European Union introduced by the Treaty of Amsterdam and to evaluate the modifications introduced by the Lisbon Treaty to the whole structure of the AFSJ. The institutional structure, the decision making process, the nature and legal effects
openaire   +1 more source

Demagnetization‐Driven Nanoscale Chirality‐Selective Phonon Transport

open access: yesAdvanced Materials, EarlyView.
Chiral heat flow is switched in a ferromagnet/chiral α‐SiO2 heterostructure by controlling the angular momentum of demagnetization‐driven chiral phonons. When phonon handedness matches the crystal chirality, nanoscale thermal transport is enhanced; the opposite handedness suppresses transport, establishing a magnetization‐tunable chiral phonon diode ...
In Hyeok Choi   +8 more
wiley   +1 more source

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