Results 51 to 60 of about 15,093,246 (313)

Atomistic Mechanisms Triggered by Joule Heating Effects in Metallic Cu‐Bi Nanowires for Spintronics

open access: yesAdvanced Materials, EarlyView.
Bi doped metallic Cu nanowires are promising for spintronics thanks to the stabilization of a giant spin Hall effect. However, heat resulting from current injection forces Bi to leave solution, forcing segregation into monoatomic decorations which evolve into coherent crystalline aggregates.
Alejandra Guedeja‐Marrón   +6 more
wiley   +1 more source

Greenhouse gas emissions under conservation agriculture: a synthesis of field observations on integrating conservation tillage and cover crops

open access: yesActa Agriculturae Scandinavica. Section B, Soil and Plant Science
Conservation agriculture (CA), which combines conservation tillage and cover crops (CC), has gained increasing attention for its potential to improve soil health and mitigate climate change. Yet, there is limited research on its effects on greenhouse gas
Sandhya Karki, Rattan Lal, Klaus Lorenz
doaj   +1 more source

Effect of Tillage Systems and Herbicide Application in ‎Weed Control of Canola (Brassica napus L.)‎ [PDF]

open access: yesIkufīziyuluzhī-i Giyāhān-i Zirā̒ī, 2017
Integrated weed management in canola (Hyola 401) was studied in an experiment conducted in 2014-2015 growing season in “Kohghilooyeh and Boyer Ahmad”, Iran.
Seyyed Ali Forouzandeh   +3 more
doaj  

Role of the Recombination Zone in Organic Light‐Emitting Devices

open access: yesAdvanced Materials, EarlyView.
This review summarizes the critical role of the recombination zone in organic light‐emitting diodes (OLEDs). We highlight that broadening the recombination zone in OLEDs based on emissive layers with balanced charge transport and high photoluminescence quantum yields provides a promising route toward achieving both long operational lifetime and high ...
Yungui Li, Karl Leo
wiley   +1 more source

Soil tillage needs a radical change for sustainability

open access: yes, 2007
In Central Europe, the challenge in soil tillage throughout the last century can be characterized as a fi ght against extreme climatic and economic situations.
Kisic, Ivica   +7 more
core   +1 more source

Why Is the Mechanism Underlying the Chiral‐Induced Selectivity Effect Still Challenging?

open access: yesAdvanced Materials, EarlyView.
The chiral‐induced spin selectivity (CISS) effect is observed in many experimental configurations and for different materials. However, there are theoretical challenges in attempting to explain those results. A qualitative framework for explaining all the results is presented.
Ron Naaman, Yossi Paltiel
wiley   +1 more source

High Center‐of‐Mass, Multi‐Legged Soft Robots Powered by Geometrically Encoded Liquid Crystal Elastomer Arc Appendages

open access: yesAdvanced Materials, EarlyView.
Inspired by the octopus and the golden wheel spider, soft robots with liquid crystal elastomer arc fibers as appendages are fabricated to transcend surface constraints through an elevated center of mass and minimal contact footprints. By leveraging curvature‐encoded deformation‐recovery cycles, these robots exhibit contractile, torsional, and flexural ...
Jong Bin Kim   +5 more
wiley   +1 more source

Phytosociology of weeds under different soil management systems in field reform of raw sugarcane. = Fitossociologia de plantas daninhas sob diferentes sistemas de manejo de solo em áreas de reforma de cana crua.

open access: yesAgro@mbiente On-line, 2011
The aim of this study was the phytosociological survey of weeds in areas of reform of raw cane, kept fallow after the use of three soil management systems in two regions of São Paulo.
Maria Beatriz Bernardes Soares   +5 more
doaj  

Comparação entre as técnicas de amostragem direta em campo e cultura-armadilha para mensuração da diversidade de espécies de fungos micorrízicos arbusculares

open access: yesHoehnea
O conhecimento das comunidades de fungos micorrízicos arbusculares (FMA) depende dos esporos, que podem ou não ser recolhidos na coleta. Este trabalho teve como objetivo determinar a diversidade de espécies de FMA a partir do exame de amostras do campo e
Marie Luise Carolina Bartz   +4 more
doaj   +1 more source

Dryland maize yields and water use efficiency in response to tillage and nutrient management practices in China

open access: yes, 2009
Rainfed crop production in northern China is constrained by low and variable rainfall. This study explored the effects of tillage and nutrient management practices on maize (Zea mays L.) yield and water use efficiency (WUE), at Shouyang Dryland Farming ...
Zhao, Q.   +5 more
core  

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