Results 81 to 90 of about 4,043,843 (291)

Dynamic Electrophoretic Assembly Coupled With Water‐Splitting‐Induced pH Control Enables Precision Ion Sieving Membranes

open access: yesAdvanced Materials, EarlyView.
A green, external‐catalyst‐free route grows defect‐free covalent organic framework membranes directly on ion‐exchange supports using an alternating electric field and in situ‐generated acid. Through a self‐regulating, self‐healing mechanism, the membranes achieve near‐complete, ultra‐fast separation of monovalent ions such as Li+, Na+, and K+, offering
Mohammad Hossein Jandaghian   +8 more
wiley   +1 more source

Differential Sedimentation and Cryo‐TEM Mapping Resolve Structural Heterogeneity in Conjugated Polymer Nanowires for Programmable Stretchable Electronics

open access: yesAdvanced Materials, EarlyView.
Density‐driven differential sedimentation fractionates solution‐assembled P3HT nanowires into crystalline and disordered constituents. High‐resolution cryo‐TEM directly visualizes the molecular chain packing within individual nanowires in real space, and recombining the fractions programs the mobility–stretchability trade‐off without chemical ...
Junyeon Yoon, Jun Ho Hwang, Eunji Lee
wiley   +1 more source

Hábito de pastejo de novilhas em pastagens bito do gênero Brachiaria = Grazing habits of heifers on pastures of Brachiaria genus

open access: yesActa Scientiarum: Animal Sciences, 2007
Objetivou-se avaliar o comportamento de novilhas pastejando Brachiarias, em sistema de lotação contínua. O delineamento experimental foi o inteiramente casualizado, com duas espécies de gramíneas representando os tratamentos, cada um com cincorepetições.
Anderson de Moura Zanine   +5 more
doaj  

Sub‐nm2 Ferroelectric Domains via Charged 180° Walls in ZrO2

open access: yesAdvanced Materials, EarlyView.
Ferroelectric ZrO2${\rm ZrO}_2$ thin films host closely spaced charged 180∘$^{\circ }$ domain walls that vertically compress polar domains beyond their lateral half‐unit‐cell limit. These head‐to‐head and tail‐to‐tail walls show distinct bulk‐like structures, natural oxygen‐mediated stabilization, and highly asymmetric mobility, highlighting new ...
Nashrah Afroze   +33 more
wiley   +1 more source

Giant Anisotropic Spin Absorption in Chiral Hybrid Semiconductors

open access: yesAdvanced Materials, EarlyView.
Researchers uncover that chiral hybrid organic–inorganic semiconductors absorb spin differently depending on its polarization direction. This anisotropic spin absorption is primarily driven by the local symmetry breaking within the layered structure.
Cong Yang   +12 more
wiley   +1 more source

Cattle grazing on semi-natural pastures [PDF]

open access: yes, 2010
The knowledge of the grazing behaviour of cattle on Swedish semi-natural pastures and how this relates to the nutritional quality and quantity of the vegetation is low. In a situation where farming is being intensified both nationally and globally, it is
Pelve, Maja
core   +1 more source

Daily behavioral grazing patterns of beef cattle: continuous stocking grazing vs. strip grazing managed by virtual fencing

open access: yesVeterinary and Animal Science
Virtual fencing is an innovative technology for managing grazing cattle using GNSS collars. Animals were contained through a paired stimulus: when they approach a virtual boundary, the collar emits audio warnings, followed, if ignored, by an electrical pulse as aversive stimuli.
Confessore, Andrea   +4 more
openaire   +4 more sources

High‐Mobility Chalcogenophene‐Engineered Diketopyrrolopyrrole Mixed Ionic‐Electronic Conductors With Doping Tolerance for Low‐Power Organic Electrochemical Transistors

open access: yesAdvanced Materials, EarlyView.
Chalcogen substitution emerges as a powerful strategy for designing high‐performance OMIECs. In aliphatic–glycol side chain diketopyrrolopyrrole polymers, biselenophene incorporation promotes a planar, polarizable, and doping‐tolerant quinoidal framework, enabling PDPP‐4EG‐Se2 to combine high hole mobility, large µC*, enhanced operational stability ...
Shinbee Oh   +9 more
wiley   +1 more source

Suppression of Grasshopper Population Numbers with Biologically Effective Grazing Management [PDF]

open access: yes, 2004
Research comparing intensity of grasshopper infestations on grasslands with traditional grazing and twice over rotational grazing. Increased vegetation cover from rotational grazing reduces grasshopper numbers as improved grassland habitat is unfavorable
Manske, Llewellyn L.
core  

A comparison of the feeding and grazing behaviour of primiparous Holstein-Friesian and Jersey × Holstein-Friesian dairy cows [PDF]

open access: yes, 2012
Peer-reviewed articleFood intake and feeding behaviour of Holstein-Friesian (HF) and Jersey × Holstein- Friesian (J × HF) dairy cows (14 primiparous cows of each genotype) were measured during a 54-day confinement period [cows offered a complete diet ...
Kilpatrick, D. J.   +7 more
core   +1 more source

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