Results 81 to 90 of about 19,404,997 (303)

Distinct Microstructural Characteristic Lengths Defining Notch Fatigue Crack Initiation and Propagation, and Defect Tolerance in Advanced Steels

Advanced Engineering Materials, EarlyView.
Schematic representation of modes of microcrack nucleation, growth and temporary arrestment at different boundaries, with the criteria for crack propagation in three scenarios: (1) large notch, (2) defect/small sharp notch, and (3) long crack. This work revisits and integrates results on the fatigue behavior of advanced bainitic steels (in particular ...
Lucia Morales‐Rivas
wiley   +1 more source

New Estimates of Regional GDP in Spain, 1860-1930 [PDF]

This paper presents a new regional database on GDP in Spain for the years 1860, 1900, 1914 and 1930. Following Geary and Stark (2002), country level GDP estimates are allocated across Spanish provinces.
Julio Martinez Galarraga
core  

Gender equity as a key element for agroecological transitions: Neo‐rural women as managers of agroecological initiatives

People and Nature
Gender equity is considered to be a key element for the agroecological transitions of agri‐food systems and sustainable transformation of socioecological systems. Many women have recently become agroecological farmers.
Beatriz Vizuete, Marina García‐Llorente, Irene Pérez‐Ramírez, Elisa Oteros‐Rozas   +3 more
doaj   +1 more source

La política virreinal de perdón para la pacificación de Nueva España (1808-1821)

Nuevo mundo - Mundos Nuevos
Offers of pardon for political dissidents played a very important role in the efforts of the viceroys of New Spain to pacify these provinces between 1808 and 1821, during the process of revolution, civil war and independence.
Oscar Sergio Zárate
doaj   +1 more source

Counterion Dependent Side‐Chain Relaxation Stiffens a Chemically Doped Thienothiophene Copolymer

Advanced Functional Materials, EarlyView.
Oxidation of a thienothiophene copolymer, p(g3TT‐T2), via different doping strategies and dopant molecules resulted in materials with similar oxidation levels and a high electrical conductivity of ≈100 S cm−1. However, mechanical properties varied significantly, with sub‐glass transition temperatures and elastic moduli spanning from –44°C to –3°C and ...
Mariavittoria Craighero, Meghna Jha, Elsa Veronica Flores‐Vela, Joost Kimpel, Andreas Schaefer, Jiali Guo, Jesika Asatryan, Alberto Peinador Veiga, Shuichi Haraguchi, Per‐Anders Carlsson, Jaime Martín, Mariano Campoy‐Quiles, Christian Müller   +12 more
wiley   +1 more source

X‐Functionality–Driven Photocatalytic Hydrogen Evolution in 2D 4‐X‐PEA2SnI4 Perovskites

Advanced Functional Materials, EarlyView.
We report a water‐based synthesis of 2D 4‐X‐PEA2SnI4 perovskite microcrystals with prominent photocatalytic (PC) activity for H2 production. The synergy between organic functionalization and HI‐derived iodide scavenges holes suppress octahedral distortion, and favor electron accumulation, enabling a PC H2 evolution ∼20 µmol·g−1 and long‐term stability ...
Taeyeon Kim, Gayoung Seo, Seong Yeon Park, Juwon Jang, Yunho Ahn, Samiksha Mukesh Jain, Samrat Das Adhikari, Harumi Correa‐Leiva, Ignacio Utreras‐Asenjo, Oscar A. Douglas‐Gallardo, Carina Pareja‐Rivera, Kayoung Cho, Byeongsung Kim, Jhonatan Rodriguez‐Pereira, Eunseo Choi, JaeHong Park, Jin Ho Bang, Danilo H. Jara‐Quinteros, Sixto Giménez, Seog Joon Yoon, Andrés F. Gualdrón‐Reyes, Iván Mora‐Seró   +21 more
wiley   +1 more source

Nanoscale Spatial Tuning of Superconductivity in Cuprate Thin Films via Direct Laser Writing

Advanced Functional Materials, EarlyView.
Maskless direct laser writing enables local control of oxygen stoichiometry in epitaxial YBCO thin films under ambient conditions. Sub‐micrometer grayscale patterns with tunable optical response and superconducting transport properties are achieved.
Irene Biancardi, Valerio Levati, Jordi Alcalà, Thomas Günkel, Nicolas Lejeune, Riccardo Girelli, Alejandro V. Silhanek, Valeria Russo, Narcís Mestres, Daniela Petti, Anna Palau, Edoardo Albisetti   +11 more
wiley   +1 more source

Kinetics‐Controlled Architecture of Binder‐Free Organic Electrodes for Enhanced Ion Transport

Advanced Functional Materials, EarlyView.
Pulse reverse electrodeposition controls nucleation and growth to create hierarchically porous Py‐derived oligomeric electrodes with enhanced ionic accessibility and reduced transport resistance. The resulting binder‐free architectures translate these transport advantages into practical sodium‐storage functionality.
Satendra Kumar, María del Carmen Giménez‐López   +1 more
wiley   +1 more source

The New NATO Strategic Concept: A Vision from Spain

Revista UNISCI, 2010
El artículo comienza con una descripción de la evolución del Concepto Estratégico de la OTAN (CE). A continuación se realiza un doble análisis: Primero del contenido del Concepto Estratégico de 1999 y de la Guía Política General, ambos vigentes ...
Enrique Pérez Ramírez
doaj  

Aglossa mayrae Ylla, Sumpich, Gastón, Huertas & Macià, sp. n., a new species from Spain (Lepidoptera: Pyralidae, Pyralinae)

SHILAP, 2017
Aglossa mayrae Ylla, Sumpich, Gastón, Huertas & Macià, sp. n. is described from various localities in southeast Spain. The differences between morphologically similar species of genus Aglossa Latreille, 1796 inhabiting the Iberian Peninsula are given as
J. Ylla, J. Sumpich, F. J. Gastón, M. Huertas, R. Macià   +4 more
doaj   +1 more source