Results 81 to 90 of about 5,185,753 (366)
Advanced Materials, EarlyView.All‐perovskite tandem solar cells are evaluated under low‐intensity and low‐temperature (LILT) conditions relevant to space environments. Distinct loss regimes emerge, where weaker entropic mixing causes halide segragation below ≈240 K going along with a strong current imbalance, while poor electron transport in C60 dominates.
Sercan Ozen +10 more
wiley +1 more source
Ensaio Pesquisa em Educação em Ciências, 2010 This paper presents some outcomes of a broader research on Astronomy Education in primary school teacher¿s education. From the analysis of the main astronomy subjects thought nationwide and the research outcomes, we identified a set of astronomy contents
Rodolfo Langhi, Roberto Nardi
doaj
Advanced Materials Interfaces, EarlyView.The N concentration in an epitaxial VN bilayer is tailored from overstoichiometric V0.49N0.51 to understoichiometric V0.56N0.44. Based on ab initio, diffraction, and microscopy data, the overstoichiometric V0.49N0.51 layer contains V vacancies, N Frenkel pairs, and a high density of dislocations.
Marcus Hans +7 more
wiley +1 more source
Start-Up Costs in American Research Universities [PDF]
, 2003 Our report briefly summarizes findings from the 2002 Cornell Higher Education Research Institute survey of start-up costs at the over 220 universities classified as Research and Doctoral universities by the Carnegie Foundation in 1994.
Condie, Scott S +2 more
core +2 more sources
Improved Disorder Resilience in Small‐Footprint Photonic Cavities with Periodicity Breaking
Advanced Optical Materials, EarlyView.Compact photonic crystal cavities with engineered aperiodicity are demonstrated to sustain high quality factormodes and enhanced reproducibility within a minimal footprint. Combining numerical optimization and near‐field measurements, the study reveals how controlled periodicity breaking improves disorder resilience, offering a robust and scalable ...
Nicoletta Granchi +7 more
wiley +1 more source
Modern facilities in astronomy education [PDF]
Proceedings of the International Astronomical Union, 2006 AbstractAstronomical education is entering a new stage of development which is closely connected with the development of new technologies for communication, computing and data visualization. We discuss this evolution in the context of astronomy education in Armenia.
Hayk Harutyunian, Areg Mickaelian
openaire +1 more source
Strong Proton‐Phonon Coupling Drives Fast Ion Transport in Perovskites
Advanced Science, EarlyView.Experimental and computational phonon analysis of ABO3‐type proton conductor BaSnO3 shows that substitution on the B‐site with yttrium forms an imaginary phonon mode which is instrumental for the function as proton conductor. This overcompensates the adverse proton trapping effect of the yttrium.
Alexey Rulev +8 more
wiley +1 more source
Hands-On Universe: A Global Program for Education and Public Outreach in Astronomy [PDF]
, 2001 Hands-On Universe (HOU) is an educational program that enables students to investigate the Universe while applying tools and concepts from science, math, and technology.
Boer, M. +5 more
core +2 more sources
Advanced Science, EarlyView.A thin topological insulator (Bi2Te3) inserted between two single magnetic septuple layers of MnBi2Te4 is shown to convert the intrinsic antiferromagnetic interlayer coupling into robust ferromagnetism. As the Bi2Te3 spacer thickness increases from 1 to 4 quintuple layers, the weakening coercivity, Curie temperature, and interlayer coupling reveal ...
Enayet Hossain +10 more
wiley +1 more source
Astronomical observations: a guide for allied researchers
The Open Journal of Astrophysics, 2019 Observational astrophysics uses sophisticated technology to collect and measure electromagnetic and other radiation from beyond the Earth. Modern observatories produce large, complex datasets and extracting the maximum possible information from them ...
Pauline Barmby
doaj +1 more source