Results 151 to 160 of about 1,056,254 (402)

Wafer Scale III‐Nitride Deep‐Ultraviolet Vertical‐Cavity Surface‐Emitting Lasers Featuring Nanometer‐Class Control of Cavity Length

open access: yesAdvanced Science, EarlyView.
A DUV‐VCSEL strategy featuring the nanometer‐class control of the cavity length is proposed in the DUV optoelectronic framework based on GaN templates. After the sapphire removal, a self‐terminated etching technology is developed, whereby the cavity length can be accurately determined by epitaxy instead of the fabrication process. As such, a record low
Chen Ji   +18 more
wiley   +1 more source

Structural Basis of the Membrane Association by the Conserved RocS Membrane‐Targeting Sequence in Streptococcus

open access: yesAdvanced Science, EarlyView.
Chromosome segregation in Streptococcus pneumoniae depends on RocS, a bitopic protein whose membrane‐anchoring mechanisms were unclear. Using NMR and AFM, this study reveals that the widely conserved RocS anchor binds to membranes via a conserved kink‐helix motif which inserts into lipid nanodomains.
Ana Álvarez‐Mena   +11 more
wiley   +1 more source

Comparison of Leaf Reflectance of Sorghum Plants Infested by Sugarcane Aphids [PDF]

open access: yes, 2018
Sugarcane aphid, Melanaphis sacchari (Homiptera: Aphididae; Fig. 1A), is a significant pest to sorghum, Sorghum bicolor (Fig. 1B). Sorghum fields are regularly surveyed to detect pest infestation.
Bhattarai, Ganesh P.   +2 more
core  

Electronic Interaction at Cu–O–Ni Heterointerface Promotes Electrocatalytic Nitrate Reduction to Ammonia and Zinc‐Nitrate Battery

open access: yesAdvanced Science, EarlyView.
The strong Cu–O–Ni electronic interaction in the heterostructured catalyst can enhance the effective adsorption of NO3− and accelerate the in situ hydrolysis dissociation of the hydrogenation step. The Zn‐NO3 hybrid battery assembled with this catalyst achieves an open‐circuit voltage of 1.45 V, a peak power density of 6.47 mW cm−2, and can ...
Taozhi Lv   +5 more
wiley   +1 more source

Trace Alloying Unleashed: AuPt Nanoalloys Strategy Preserves Plasmonic Properties on Au Nanobipyramids While Boosting Electron Transfer for Visible Light Ammonia Synthesis

open access: yesAdvanced Science, EarlyView.
Au nanobipyramids (Au NBPs) with distinct Pt configurations—dense Pt layers (Au NBPs@Ptd), sparse Pt clusters (Au NBPs@Pts), and trace AuPt alloy (Au NBPs@Au/Ptalloy) were engineered. Au NBPs@Au/Ptalloy exhibited optimal performance in the photoelectrocatalytic nitrite‐to‐ammonia conversion.
Lin Wei   +5 more
wiley   +1 more source

Sulfonated Cellulose Acetate Nanofibers Induced Zincophilic‐Hydrophobic Interface to Regulate Ion Transport for Long‐Lifespan Zinc‐Iodine Batteries

open access: yesAdvanced Science, EarlyView.
Sulfonated cellulose acetate (SCA) nanofiber membrane with zincophilic‐hydrophobic property is constructed on the surface of the Zn anode by the electrospinning technique to tune the 3D deposition behavior of Zn2+ by chemisorption and micro‐sized physical structure. The negatively‐charged groups of SCA nanofiber membrane form an electrostatic repulsion
Wendan Zhang   +13 more
wiley   +1 more source

Field observations about the behaviour of codling-moth in Trentino (North-Eastern Italy) [PDF]

open access: yes, 2008
Codling-moth and applescab are the most important pathogens in both conventional and organic apple productions. In order to control any phytopathological problem, it is important to improve the knowledge of the behaviour of each specific pest.
Forno, F.   +3 more
core  

Spectroscopic Evidence of Edge‐Localized States in an Antiferromagnet Topological Insulator NdBi

open access: yesAdvanced Science, EarlyView.
Using spin‐polarized scanning tunneling microscopy (STM) in conjunction with quasiparticle interference, we successfully identify distinct signatures of the ferromagnetic and antiferromagnetic terminations in NdBi, a rare‐earth monopnictide exhibiting non‐trivial topology and magnetism. We demonstrate that step edges on ferromagnetic surfaces host well‐
Avior Almoalem   +8 more
wiley   +1 more source

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