Results 121 to 130 of about 2,927,072 (293)
A New Family of Ternary Intermetallic Compounds with Dualistic Atomic Ordering – The ZIP Phases
The ZIP phases are ternary intermetallic compounds with dualistic atomic ordering, i.e., they exhibit one face‐centered cubic (fcc; space group Fd3¯$\bar 3$m) variant and one hexagonal (space group P63/mmc) variant. The ZIP phases in the Nb‐Si‐Ni system are the Nb3SiNi2 (fcc) and Ni3SiNb2 (hexagonal) ternary IMCs, crystal structure schematics of which ...
Matheus A. Tunes+24 more
wiley +1 more source
O objetivo do presente estudo foi verificar os efeitos da regra do gol qualificado na posse de bola e gols marcados nas fases finais da Copa do Brasil de Futebol.
Samuel Silva Filho+3 more
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O leitor fica sem saber a troco do que John Donne lhe surge de repente, num virar de página, e através de períodos que parecem responder a uma pergunta que não foi formulada.(...) Ninguém, nem o Sr. Afrânio Coutinho falara, até então, de John Donne,(...).
José Garcez Ghirardi, John Milton
openaire +7 more sources
Floristic survey of epixylic Bryophytes of an area remnant of the Atlantic forest (Timbaúba - PE, Brazil) : 1., Hepaticopsida (except Lejeuneaceae) and Bryopsida [PDF]
A survey of the epixylic bryoflora of a remaining Atlantic forest (seasonal coastal deciduous forest), Engenho Água Azul, in the municipality of Timbaúba ( Lat 7° 35S; Long.
Germano, Shirley Rangel+1 more
core
THz‐Driven Coherent Phonon Fingerprints of Hidden Symmetry Breaking in 2D Layered Hybrid Perovskites
Intense THz pulses are employed to drive coherent phonons in 2D Ruddlesden‐Popper hybrid metal‐halide perovskites (HOIPs) from the (PEA)2(MA)n‐1PbnI3n+1 family, revealing mode‐selective spectroscopic signatures of inversion symmetry breaking in those nominally centrosymmetric materials. These findings provide a handle to decode nonlinear phonon driving
Joanna M. Urban+14 more
wiley +1 more source
IBEROAMERICANA, Vol. 10, Núm. 40 (2010)
openaire +3 more sources
FeNb2O6 is applied for the first time as a high‐performance anode material for sodium‐ion batteries. The presence of iron disrupts the long‐range order by local disorder of the FeO6 octahedra during initial sodiation. Simultaneously, the formation of short‐range ordered zigzag‐chain structures within the NbO6 planes establishes a robust intercalation ...
Yanchen Liu+9 more
wiley +1 more source
Platinum‐free hydrogen photocatalysis is achieved using dibenzothiophene‐S,S‐sulfoxide‐based conjugated polymers, self‐assembled into nanoparticles via nanoprecipitation. Through side chain engineering and donor–acceptor design, these materials reach a hydrogen evolution rate of 209 mmol g⁻¹ h⁻¹. The structure–function insights presented here establish
Alexandre Holmes+11 more
wiley +1 more source
As culturas jurídicas dos mundos emergentes
O presente artigo trata do discurso jurídico brasileiro e sua especificidade caracterizada por uma estratégia dos juristas, por um recorte especial relativamente a outras normatividades, pela emergência de temas e valores próprios e pelo uso de modelos ...
António Manuel Hespanha
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