Results 61 to 70 of about 1,966,151 (299)

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

Impacts of Grazing on the Selected Features of Herbaceous Species and Harvested Dry Matter Yield of Natural Pasture

open access: yesInternational Journal of Forestry Research
This study evaluated how grazing influenced the specific features of herbaceous species (basal cover, species richness, evenness, and diversity) as well as dry matter yield in the northwestern highlands of Ethiopia.
Alemu Gashe Desta   +4 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

Suplementação energética na recria de fêmeas de corte em pastagem cultivada de inverno: dinâmica da pastagem Energetic supplementation on rearing of beef heifers in winter cultivated pasture: pasture dynamic

open access: yesRevista Brasileira de Zootecnia, 2005
Foi avaliada a dinâmica da pastagem de aveia preta (Avena strigosa Schreb) mais azevém (Lolium multiflorum Lam) utilizada por novilhas de corte submetidas a diferentes níveis de suplemento durante o período de pastejo.
Fabiana Kellermann de Freitas   +6 more
doaj   +1 more source

Asymmetric Lamellar Templating of the Perovskite/C60 Interface for Scalable Inverted Perovskite Photovoltaics

open access: yesAdvanced Materials, EarlyView.
Asymmetric lamellar templating at the perovskite/C60 interface is achieved using a laterally polarized indole spacer. Surface anchoring and Ind–Ind assembly form a π‐rich lamellar interphase that supports uniform C60 contact formation, suppresses recombination, preserves electron extraction, and enables certified high‐efficiency cells and modules with ...
Taeyoon Ki   +16 more
wiley   +1 more source

Gold‐Stabilized Copper Enables Anodic Hydrogen Evolution for Ultralow‐Voltage CO‐to‐Ethylene Electrolysis

open access: yesAdvanced Materials, EarlyView.
Gold‐stabilized copper suppresses hydroxide‐driven deactivation during anodic hydrogen evolution from furfural. Pairing this low‐potential anode with CO‐to‐ethylene electroreduction enables sub‐1 V operation at 400 mA cm−2, high single‐pass CO conversion, and co‐production of ethylene, furoic acid, and a separate hydrogen stream.
Sungjin Park   +18 more
wiley   +1 more source

The Roles of Labor and Profitability in Choosing a Grazing Strategy for Beef Production in the U.S. Gulf Coast Region [PDF]

open access: yes
Comparisons are made concerning labor required and profitability associated with continuous grazing at three stocking rates and rotational grazing at a high stocking rate in the U.S. Gulf Coast region.
Blouin, David   +4 more
core  

Produção animal em capim papuã (Brachiaria plantaginea (Link) Hitchc) submetido a níveis de nitrogênio Animal production on alexandergrass (Brachiaria plantaginea (Link) Hitchc), submitted to nitrogen levels

open access: yesCiência Rural, 2000
Estudou-se o efeito de níveis de nitrogênio (0, 100 e 200kg/ha de N), na forma de uréia, numa pastagem de capim papuã (Brachiaria plantaginea). O sistema de pastejo foi o contínuo, com uma oferta de forragem média de 14,41kg/dia de MS/100 kg de peso vivo.
Jorge Dubal Martins   +2 more
doaj   +1 more source

Engineering the Assembly Freedom of Donor–Acceptor Type Self‐Assembled Monolayers Toward Efficient and Stable Flexible Perovskite Photovoltaics

open access: yesAdvanced Materials, EarlyView.
Assembly freedom engineering breaks the vertical alignment constraint of donor–acceptor self‐assembled monolayers, tuning their assembly freedom to achieve quasi‐random molecular orientation. This strategy simultaneously boosts interfacial charge transport and mechanical robustness, enabling high‐efficiency and mechanically stable flexible perovskite ...
Biao Zhou   +9 more
wiley   +1 more source

The Economics of Rotational Grazing in the Gulf Coast Region: Costs, Returns, and Labor Considerations, Phase II [PDF]

open access: yes
Profitability and labor associated with rotational grazing at three stocking rates and continuous grazing at a medium stocking rate are compared. On a per-acre basis, profits are lowest for low stocking rate rotational grazing.
Blouin, David   +6 more
core  

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