Results 131 to 140 of about 1,276,665 (294)

Infra-estrutura virtual nível 2 para interligação de máquinas virtuais em larga escala [PDF]

open access: yes, 2011
O conceito de virtualização de redes encontra-se em expans. A capacidade de oferecer a uma infra-estrutura de rede a possibilidade de suportar várias redes virtuais distintas, sem as pressões impostas pelas redes de suporte,é um ponto de interesse tanto ...
Costa, António   +2 more
core  

Toward Stable Multivalent Metal Batteries: Understanding the Interfacial Chemistry for Magnesium and Calcium Metal Anodes

open access: yesAdvanced Functional Materials, EarlyView.
Interphase chemistry governs the stability of multivalent metal batteries. We summarize state‐of‐the‐art developments in calcium and magnesium metal batteries by focusing on the correlation among electrolytes, interphase layers, and the electrochemical performance of corresponding metal anodes.
Huijun Lin   +4 more
wiley   +1 more source

Nós da docência [PDF]

open access: gold, 2023
Maria Cláudia Dal’Igna
openalex   +1 more source

“Aqui nós participamos!” a participação das crianças na educação de infância [PDF]

open access: yes, 2015
A participação das crianças tem assumido, nas últimas décadas, uma maior importância quer social quer cientificamente, uma vez que estas fazem parte de uma categoria social de tipo geracional que as caracteriza como um grupo minoritário cujo estatuto ...
Cabral, Sónia Maria Costa   +1 more
core  

Balancing Electrons to Break the Activity‐Selectivity Trade‐Off in H2O2 Electrosynthesis

open access: yesAdvanced Functional Materials, EarlyView.
Carrier‐concentration balancing in CuS is achieved by coupling cobalt dopants with cobalt vacancies, converting CuS from p‐ to n‐type to accelerate 2e− ORR while withdrawing excess carriers to optimize *OOH binding for H2O2 desorption. The catalyst reaches 8.14 mol g−1 h−1 with >84% selectivity in 1.0 M KOH and drives robust electro‐Fenton dye ...
Hangning Liu   +11 more
wiley   +1 more source

DISPOSAL OF LOW AND INTERMEDIATE LEVEL WASTE IN HUNGARY

open access: yesRudarsko-geološko-naftni Zbornik, 2012
There are two operating facilities for management of low and intermediate level radioactive waste in Hungary. Experience with radioactive waste has a relatively long history and from its legacy some problems are to be solved, like the question of the ...
Bálint Nős   +2 more
doaj  

Revealing the Hidden Role of Cd in p‐Type Mg3Sb2: Enhanced Thermoelectric Performance by Grain Boundary Segregation Engineering

open access: yesAdvanced Functional Materials, EarlyView.
The hidden role of Cd segregation at grain boundaries is revealed in p‐type Mg3Sb2 by atom probe tomography and other advanced characterizations. Grain boundary Cd enrichment suppresses the SbMg+ hole‐killer formation and lowers potential barriers, enhancing electrical conductivity.
Zhou Li   +12 more
wiley   +1 more source

Giant Intrinsic Chirality Amplification of Aqueous Lead Halide Perovskite Nanocrystals via H‐Bond Driven Self‐Assembly Superstructures

open access: yesAdvanced Functional Materials, EarlyView.
Water‐assisted monoclinic CsPbBr3 transformation strategy is applied for synthesizing aqueous CsPbBr3/CsPb2Br5 nanocrystals with superior water‐repellent and excellent optical property. Low temperature enhanced hydrogen bonding network self‐assembled CsPbBr3/CsPb2Br5 nanocrystals into asymmetric superstructures, which exhibit notable circularly ...
Mei Huang   +7 more
wiley   +1 more source

Acerca de Nós

open access: yesEducação & Realidade, 2002
Resenha ...
Silvana Vilodre Goellner
doaj  

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