Results 81 to 90 of about 477,368 (296)

Delenda est haec Carthago: the Ostend company as a problem of European great power politics (1722-1727) [PDF]

open access: yes, 2015
The Ostend Company (1722-1731) is a symbol of present-day Belgium’s strangling by European Great Power politics in the Ancien Régime, and more specifically of the limitations imposed on the Southern Netherlands by the Dutch Republic in 1648.
Dhondt, Frederik
core   +3 more sources

Quasi‐Static to Supersonic Energy Absorption of Nanoarchitected Tubulanes and Schwarzites

open access: yesAdvanced Functional Materials, EarlyView.
Nanoarchitected energy‐absorptive Tubulanes exhibit record energy absorption under quasi‐static conditions and exceptional inelastic energy dissipation under 750 m s−1 ballistics impact, with high performance spanning strain rates of 12 orders of magnitude.
Peter Serles   +16 more
wiley   +1 more source

Simon Ruiz et les "Asientos" de Philippe II. Col. Affaires et Gens d'affaires.

open access: yesRevista de História, 1954
LAPEYRE, Henri. Simon Ruiz et les "Asientos" de Philippe II. Col. Affaires et Gens d'affaires. Paris: Colin. 1953 (Primeiro parágrafo do artigo) As investigações econômicas que de maneira tão auspiciosa têm balisado nos últimos tempos a diretriz da ...
Rozendo Sampaio Garcia
doaj   +1 more source

Actuating and Sensing Composites of Liquid Crystal Elastomers and Poly(ionic liquid)s

open access: yesAdvanced Functional Materials, EarlyView.
Ionic conductive, mechanically tough, flexible, and stretchable filaments of a composite material comprising a liquid crystal elastomer and a poly(ionic liquid) are produced through 3D printing, which exhibit large actuation strain under stimulation and electrical resistance variation in response to deformation or environmental condition changes. Their
Zeping Liu   +6 more
wiley   +1 more source

Single‐ and Dual‐Atom Configurations in Atomically Dispersed Catalysts for Lithium–Sulfur Batteries

open access: yesAdvanced Functional Materials, EarlyView.
Single‐atom and dual‐atom‐based atomically dispersed catalysts (ADCs) effectively address the shuttle effect and sluggish redox kinetics in Li–S batteries. With nearly 100% atomic utilization and tunable coordination environments, ADCs enhance LiPSs adsorption, lower conversion barriers, and accelerate sulfur redox reactions.
Haoyang Xu   +4 more
wiley   +1 more source

La màquina de gens [PDF]

open access: yes, 2014
Un gadget tecnològic al servei de la nova biologia i la nova ...
Joseph A. Menovsky
core   +1 more source

Portraits de femmes au Biafra: Étude comparée de Chinua Achebe et Leslie Ofoegbu [PDF]

open access: yes, 2008
This study explores the impact of the Nigerian Civil War on the daily lives and interpersonal relationships of Biafrans as they are depicted in Chinua Achebe’s Femmes en guerre et autres nouvelles and Leslie Ofoegbu’s Blow the Fire.
Ugochukwu, Francoise
core   +1 more source

Polymer Interface Enables Reversible Quasi‐Solid Sulfur Conversion in Sodium‐Sulfur Batteries

open access: yesAdvanced Functional Materials, EarlyView.
The polymer interface enables a stable quasi‐solid sulfur conversion pathway in room‐temperature Na─S batteries. The coating regulates Na+ transport, stabilizes the cathode–electrolyte interphase, and accommodates mechanical stress, suppressing electrolyte decomposition and sulfur migration, thereby improving reaction uniformity, reducing polarization,
Reza Andaveh   +12 more
wiley   +1 more source

Gens de superviviència bacteriana [PDF]

open access: yes, 2008
Un nou pas en l'estudi de la genòmica permetrà entendre una mica més la vida cel·lular i molecular present als oceans. En aquest cas, l'anàlisi s'ha centrat en el bacteri Polaribacter sp.
Sánchez Martínez, M. Olga
core   +1 more source

Storage and Retrieval of a Microwave Field in a Spin Ensemble

open access: yes, 2011
We report the storage and retrieval of a small microwave field from a superconducting resonator into collective excitations of a spin ensemble. The spins are nitrogen-vacancy centers in a diamond crystal. The storage time of the order of 30 ns is limited
Auffeves, A.   +9 more
core   +3 more sources

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