Results 71 to 80 of about 242,335 (291)

A Biologically‐Architected Wear and Damage‐Resistant Nanoparticle Coating From the Radular Teeth of Cryptochiton stelleri

open access: yesAdvanced Functional Materials, EarlyView.
The ultrahard teeth of mollusks that feed on rocky substrates contain a wear‐resistant coating on their surfaces consisting of densely packed mesocrystalline magnetic nanoparticles within an organic matrix. These coatings display significant hardness and toughness through their highly controlled mesocrystalline architectures.
Taifeng Wang   +7 more
wiley   +1 more source

Relationships between land use and nitrogen and phosphorus in New Zealand lakes [PDF]

open access: yes, 2011
Developing policies to address lake eutrophication requires an understanding of the relative contribution of different nutrient sources and of how lake and catchment characteristics interact to mediate the source–receptor pathway.
Abell, Jonathan Michael   +3 more
core   +2 more sources

Efficient NiOx Hole Transport Layers Enabled by Multifunctional MXenes for High‐Performance Tin‐Lead Perovskite Solar Cells

open access: yesAdvanced Functional Materials, EarlyView.
An efficient NiOx HTL is successfully prepared by introducing MXene as an additive without further surface modification to fabricate high‐performance FASn0.5Pb0.5I3 perovskite solar cells. The introduction of MXene contributes to improved conductivity of NiOx, better aligned at NiOx/perovskite interfaces, and enhanced quality of perovskite films ...
Lijun Chen   +12 more
wiley   +1 more source

Avaliação de sistemas alimentares para terneiros desmamados aos três meses de idade Evaluation of feeding systems for calves weaned at three months old

open access: yesCiência Rural, 1996
Objetivando avaliar o desempenho de torneiros desmamados aos 3 meses de idade em quatro diferentes sistemas alimentares: S1 - Campo Nativo + Silagem de Sorgo (Sorghum bicolor), S2 - Campo Nativo + Pastagem cultivada de inverno (Avena strigosa + Lolium ...
Roblein Cristal Coelho Filho   +2 more
doaj   +1 more source

Organic broilers in floorless pens on pasture [PDF]

open access: yes, 2005
This thesis investigates different aspects of rearing broilers organically in floorless pens on pasture. The birds and pens were moved daily to fresh pasture.
Bassler, Arnd
core  

Biomimetic Ion‐Orchestrated Hierarchical Armored Hydrogel Coating for Robust and Multifunctional Surface Protection

open access: yesAdvanced Functional Materials, EarlyView.
Inspired by the skin‐toughening mechanism of marine sponges, an ion‐orchestrated structural engineering strategy is proposed to regulate the surface microstructure of hydrogel coatings, enabling the in situ formation of a robust armor layer that enhances mechanical integrity and provides multifunctional protection by suppressing fouling attachment and ...
Wenshuai Yang   +11 more
wiley   +1 more source

The transfer of 137Cs through the soil-plant-sheep food chain in different pasture ecosystems

open access: yesAgricultural and Food Science, 2008
A grazing experiment with sheep was carried out in 1990-1993 on natural, semi-natural and cultivated pasture on clay soil. The pastures were located in Southern Finland and were moderately contaminated with 137 Cs by Chernobyl fallout.
A. PAASIKALLIO, R. SORMUNEN-CRISTIAN
doaj  

Efeitos da queima seguida de pastejo ou diferimento sobre o resíduo, temperatura do solo e mesofauna de uma pastagem natural Effects of burning followed by grazing or deferring on residual dry matter, soil temperature and mesofauna of a natural pasture

open access: yesCiência Rural, 1996
Foi realizado um experimento no Departamento de Zootecnia da UFSM, Santa Maria, RS, Brasil, com o objetivo de estimar os efeitos do fogo associado ao pastejo, com ou sem período de diferimento após a queima, sobre o resíduo e mesofauna edáfica de uma ...
Paulo Rogério Viegas Damé   +4 more
doaj   +1 more source

Geometrically‐Screened, Sterically‐Hindered Additive for Wide‐Temperature Aqueous Zinc‐Ion Batteries

open access: yesAdvanced Functional Materials, EarlyView.
A molecular‑engineering strategy combining steric hindrance tuning with geometric optimization identifies cellobiose as an ideal additive for aqueous zinc‑ion batteries, enabling stable Zn deposition across a wide temperature range from −30 to 50 °C. Abstract Aqueous zinc‐ion batteries (AZIBs) are emerging as a highly promising alternative to lithium ...
Sida Zhang   +13 more
wiley   +1 more source

The transfer of 137Cs through the soil-plant-sheep food chain in different pasture ecosystems

open access: yesAgricultural and Food Science, 1996
A grazing experiment with sheep was carried out in 1990-1993 on natural, semi-natural and cultivated pasture on clay soil. The pastures were located in Southern Finland and were moderately contaminated with 137 Cs by Chernobyl fallout.
Arja Paasikallio   +1 more
doaj  

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