Results 101 to 110 of about 2,651,807 (346)

Still water: dead zones and collimated ejecta from the impact of granular jets

open access: yes, 2013
When a dense granular jet hits a target, it forms a large dead zone and ejects a highly collimated conical sheet with a well-defined opening angle. Using experiments, simulations, and continuum modeling, we find that this opening angle is insensitive to ...
Ellowitz, Jake   +4 more
core   +2 more sources

Designing Physical Unclonable Functions From Optically Active Materials

open access: yesAdvanced Materials, EarlyView.
Assigning unforgeable “fingerprints” to manufactured goods is a key strategy to fight global counterfeiting. Optical physical unclonable functions (PUFs) are chemically generated random patterns of optically active materials serving as unique authenticators.
Maxime Klausen   +2 more
wiley   +1 more source

Mixing of Fluid by Free Jets

open access: yesChemical engineering, 1964
槽内にジェットを噴出させて液-液系撹拌操作を行なう場合について模型実験を行ない, 噴射角度を一定にしてノズル口径, ジェットの流速をいろいろに変えたときの撹拌効果を比較検討した。その結果, 限られた槽内にジェットを噴射して撹拌を行なう場合には, ジェットの運動量を大きくするだけでなくノズル口径およびジェットの流速を考慮する必要があることを見出した。
openaire   +2 more sources

Supersonic Jet Excitation using Flapping Injection

open access: yes, 2013
Supersonic jet noise reduction is important for high speed military aircraft. Lower acoustic levels would reduce structural fatigue leading to longer lifetime of the jet aircraft. It is not solely structural aspects which are of importance, health issues
Andersson, Niklas   +5 more
core  

Aramid Nanofiber Aerogels: Versatile High Complexity Components for Multifunctional Composites

open access: yesAdvanced Materials, EarlyView.
Different forms of aramid nanofibers (ANFs) and especially aerogels from them, offer a sustainable route to high‐performance biomimetic nanocomposites. Due to the cartilage‐like architecture, ANF‐based materials enable breakthroughs in energy, electromagnetic, biomedical, and water purification technologies.
Mingqiang Wang   +9 more
wiley   +1 more source

Instability of a Mechanical System Induced by an Impinging Fluid Jet [PDF]

open access: green, 1969
W. T. Feldt   +3 more
openalex   +1 more source

Universal Method for Covalent Attachment of Hydrogels to Diverse Polymeric Surfaces for Biomedical Applications

open access: yesAdvanced Materials, EarlyView.
A universal, reagent‐free strategy is presented for covalently attaching hydrogels to diverse polymeric substrates through reactive oxygen species. The scalable, linker‐free approach enables robust adhesion and broad material compatibility, advancing the fabrication of hybrid solid–hydrogel systems for next‐generation biomedical devices and bioprinting
Masoud Zhianmanesh   +8 more
wiley   +1 more source

Nanoarchitectonics of Metal–Organic Framework and Nanocellulose Composites for Multifunctional Environmental Remediation

open access: yesAdvanced Materials, EarlyView.
Nanoscale metal–organic frameworks (MOFs) and nanocellulose composites have significant potential for the multi‐functional remediation of the environment. This review focused on the synthesis strategies (in situ growth, ex situ growth, and other approaches), typical forms (aerogel, hydrogel, beads, and membrane), and applications in the removal of ...
Ye Song   +13 more
wiley   +1 more source

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