Results 61 to 70 of about 6,288,832 (388)

Spray characteristics of a multi-hole injector for direct-injection gasoline engines [PDF]

open access: yes, 2006
The sprays from a high-pressure multi-hole nozzle injected into a constant-volume chamber have been visualized and quantified in terms of droplet velocity and diameter with a two-component phase Doppler anemometry (PDA) system at injection pressures up ...
Arcoumanis, C.   +3 more
core   +1 more source

Numerical investigation of droplet formation in T-junction microfluidic system with a semi-NACA-shaped squeezer

open access: yesCommunications in Physics
We present a numerical investigation of droplet formation in a T-junction microfluidic system with a semi-NACA-shaped squeezer. A two-dimensional numerical model is employed to simulate the droplet formation process using the Volume of Fluid method. The
Ich Long Ngo, Van Nam Dao, Thi-Xuan Chu
doaj   +1 more source

Droplet Ripening in Concentration Gradients [PDF]

open access: yes, 2017
Living cells use phase separation and concentration gradients to organize chemical compartments in space. Here, we present a theoretical study of droplet dynamics in gradient systems.
Jülicher, Frank   +2 more
core   +2 more sources

Minimising oil droplet size using ultrasonic emulsification [PDF]

open access: yesUltrasonics Sonochemistry, 2009
The efficient production of nanoemulsions, with oil droplet sizes of less than 100nm would facilitate the inclusion of oil soluble bio-active agents into a range of water based foods. Small droplet sizes lead to transparent emulsions so that product appearance is not altered by the addition of an oil phase.
Leong, TSH   +3 more
openaire   +3 more sources

Interferometric laser imaging for respiratory droplets sizing

open access: yesExperiments in Fluids, 2023
AbstractDue to its importance in airborne disease transmission, especially because of the COVID-19 pandemic, much attention has recently been devoted by the scientific community to the analysis of dispersion of particle-laden air clouds ejected by humans during different respiratory activities.
Grandoni, Livia   +6 more
openaire   +2 more sources

The anti‐CRISPR protein AcrIE8.1 inhibits the type I‐E CRISPR‐Cas system by directly binding to the Cascade subunit Cas11

open access: yesFEBS Letters, EarlyView.
In this study, we present the structure of AcrIE8.1, a previously uncharacterized anti‐CRISPR protein that inhibits the type I‐E CRISPR‐Cas system. Through a combination of structural and biochemical analyses, we demonstrate that AcrIE8.1 directly binds to the Cas11 subunit of the Cascade complex to inhibit the CRISPR‐Cas system.
Young Woo Kang, Hyun Ho Park
wiley   +1 more source

Enable a Facile Size Re-distribution of MBE-Grown Ga-Droplets via In Situ Pulsed Laser Shooting

open access: yesNanoscale Research Letters, 2021
A MBE-prepared Gallium (Ga)-droplet surface on GaAs (001) substrate is in situ irradiated by a single shot of UV pulsed laser. It demonstrates that laser shooting can facilely re-adjust the size of Ga-droplet and a special Ga-droplet of extremely broad ...
Biao Geng   +8 more
doaj   +1 more source

Lattice Boltzmann simulation of droplet behaviour in microfluidic devices [PDF]

open access: yes, 2008
We developed a lattice Boltzmann model to investigate the droplet dynamics in microfluidic devices. In our model, a stress-free boundary condition was proposed to conserve the total mass of flow system and improve the numerical stability for flows with ...
Liu, Haihu, Zhang, Yonghao
core   +2 more sources

Copepod manipulation of oil droplet size distribution [PDF]

open access: yesScientific Reports, 2019
AbstractOil spills are one of the most dangerous sources of pollution in aquatic ecosystems. Owing to their pivotal position in the food web, pelagic copepods can provide crucial intermediary transferring oil between trophic levels. In this study we show that the calanoidParacartia granican actively modify the size-spectrum of oil droplets.
Marco Uttieri   +6 more
openaire   +4 more sources

Structural insights into lacto‐N‐biose I recognition by a family 32 carbohydrate‐binding module from Bifidobacterium bifidum

open access: yesFEBS Letters, EarlyView.
Bifidobacterium bifidum establishes symbiosis with infants by metabolizing lacto‐N‐biose I (LNB) from human milk oligosaccharides (HMOs). The extracellular multidomain enzyme LnbB drives this process, releasing LNB via its catalytic glycoside hydrolase family 20 (GH20) lacto‐N‐biosidase domain.
Xinzhe Zhang   +5 more
wiley   +1 more source

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