Results 41 to 50 of about 19,033 (260)

Lattice‐Matched 2D Template Enables Efficient Cesium Tin Halide Perovskite Solar Cells

open access: yesAdvanced Materials, EarlyView.
Lattice‐matched 2D perovskite PEA2CsSn2I7 templates the out‐of‐plane growth of inorganic 3D γ‐CsSnI3 along the (110) plane, forming highly oriented 2D/3D tin halide perovskite heterostructures. With reduced trap states and mitigated δ‐phase impurities, the CsSnI3‐based solar cells achieve a power conversion efficiency of 15.27% and maintain stable ...
Hongzhe Anna Xu   +15 more
wiley   +1 more source

Effects of time-controlled and continuous grazing on total herbage mass and ground cover

open access: yesJournal of Agriculture and Rural Development in the Tropics and Subtropics, 2016
Grazing practices in rangelands are increasingly recognized as a management tool for environmental protection in addition to livestock production. Long term continuous grazing has been largely documented to reduce pasture productivity and decline the ...
Gholamreza Sanjari   +2 more
doaj  

Self‐Assembled Monolayers in p–i–n Perovskite Solar Cells: Molecular Design, Interfacial Engineering, and Machine Learning–Accelerated Material Discovery

open access: yesAdvanced Materials, EarlyView.
This review highlights the role of self‐assembled monolayers (SAMs) in perovskite solar cells, covering molecular engineering, multifunctional interface regulation, machine learning (ML) accelerated discovery, advanced device architectures, and pathways toward scalable fabrication and commercialization for high‐efficiency and stable single‐junction and
Asmat Ullah, Ying Luo, Stefaan De Wolf
wiley   +1 more source

Canopy structure and foraging behavior associated with phenological stages of winter forage

open access: yesJournal of Applied Animal Research, 2019
Data from eight experiments were jointly analysed to characterize the ingestive behavior, displacement patterns, use of feeding stations and the dynamics of meals of beef heifers in different phenological stages of winter forages.
Maria J. de O. Sichonany   +7 more
doaj   +1 more source

Efeito de níveis de suplementação sobre o comportamento ingestivo de bezerras em pastagem de aveia (Avena strigosa Schreb.) e azevém (Lolium multiflorum Lam.) Ingestive behavior of beef heifers grazing oat (Avena strigosa Schreb) and ryegrass (Lolium multiflorum Lam) pasture under supplementation levels

open access: yesRevista Brasileira de Zootecnia, 2005
Foi avaliado o comportamento ingestivo de bezerras de corte submetidas a diferentes níveis de suplementação energética. Os níveis testados foram (0; 0,5; 1,0; 1,5% do peso vivo), em pastagem de aveia preta (Avena strigosa Schreb.) e azevém (Lolium ...
Carolina Bremm   +12 more
doaj   +1 more source

Thermodynamic Limits to Molecular Doping in Conjugated Polymers: A Perspective on Phase Behavior and Miscibility

open access: yesAdvanced Materials, EarlyView.
Molecular doping of conjugated polymers is fundamentally constrained by thermodynamic phase behavior. This Perspective reframes doping efficiency and stability in terms of miscibility limits, binodals, and solvus boundaries, highlighting the role of effective interaction parameters and charge transfer.
Somayeh Kashani   +10 more
wiley   +1 more source

Produção animal em gramíneas de estação fria com fertilização nitrogenada ou associadas com leguminosa, com ou sem fertilização nitrogenada Animal production on cool season grasses with nitrogen fertilization or associated with legume with or without nitrogen fertilization

open access: yesCiência Rural, 1999
O experimento foi conduzido em Santiago, RS, Brasil. Foram avaliados no período de 24/04/96 a 05/11/96, distintos sistemas de produção animal, nos quais os tratamentos constavam de uma pastagem de aveia preta (Avena strigosa, Schreb.) + azevém anual ...
Manoel Flores Lesama   +1 more
doaj   +1 more source

Rethinking Charge Transport and Recombination in Donor‐Diluted Organic Solar Cells

open access: yesAdvanced Materials, EarlyView.
Organic solar cells with 1–45% PM6 content in Y12 were studied to link structure and charge dynamics to performance. The conductivity follows a 3D percolation model without a sharp threshold. Donor dilution preserves the photogeneration yield, but limits the fill factor due to transport resistance losses.
Chen Wang   +14 more
wiley   +1 more source

Biomass flow and defoliation pattern in alexandergrass fertilized with nitrogen

open access: yesBioscience Journal, 2017
The determination of biomass flows can assist on improving pasture fertilization techniques, contributing to identify the best management methods and, in relation the use of fertilizers. Nitrogen deficiency in pastures can reduce forage production.
Anelise Pereira Hundertmarck   +7 more
doaj   +1 more source

Nutrient Intake of Cattle on Rotational and Continuous Grazing Treatments [PDF]

open access: yesJournal of Range Management, 1991
Many benefits have been obtained from rotational grazing, including management flexibility and livestock distribution, but long-term positive effects on plant and animal production have been inconsistent. The purpose of this cast study was to investigate nutrient intake of animals in 2 production scale grazing, treatments.
C. David McKown   +3 more
openaire   +1 more source

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