Exemple de utilizare a Particle surface în Engleză și traducerile lor în Română
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Ultrasonic Particle Surface Cleaning.
Removal of passivating layers from the particle surface.
Ultrasonic Particle Surface Functionalization.
Ultrasonication improves the mixing of the pre-cursors andincreases the mass-transfer at the particle surface.
Particle Surface Cleaning, e.g. of glass beads or milling media.
Ultrasonic dispersion gives a high particle surface and homogeneous distribution.
The particle surfaces were rich in hydroxyl groups, giving them high hydrophilicity.
This stress helps to overcome the attracting forces andcarries the functional molecules to the particle surface.
By the modification of the particle surface, an unwanted aggregation of particles can be avoided.
The mass transfer is further increased due to the removal of passivating layers from the particle surface.
Cavitational erosion on particle surfaces generates unpassivated, highly reactive surfaces. .
In particular the high shear of the liquid jets causes fissure at particle surfaces and inter-particle collisions.
Cavitational erosion on particle surfaces generates unpassivated, highly reactive surfaces. .
When dispersed, particles are typically surrounded by a boundary layer of molecules attracted to the particle surface.
In order for new functional groups to get to the particle surface, this boundary layer needs to be broken up or removed.
Ultrasonic particle surface treatment is a rapid and facile method to regenerate and reactivate spent and poisoned catalysts.
By ultrasonic treatment, particles can be dispersed, deagglomerated and fragmented- resulting in a higher particle surface.
This means a high particle surface without passivating layers is required to improve the carbonation process.
The surface area can be ultrasonically increased andmodified by attaching appropriate functional molecules on the particle surface.
When reagents react at a catalyst particle surface, the products of the chemical reaction accumulate at the contact surface. .
Ultrasonic cavitation causes high-speed liquid jets, high hydraulic shear andinter-particle collisions resulting in particle surface cleaning.
During catalytic and chemical reactions, the particle surface can be blocked by residue deposition, boundary layer formation, oxide layers and fouling.
Unless the individual particles are well dispersed,agglomeration reduces the exposed particle surface leading to inferior concrete properties.
The increase of the particle surface caused by the comminution results in a considerably better dissolution rate and bioavailability of the agents and therefore the APIs act faster.
By ultrasonic cavitation and the thereby caused inter-particle collision,the residues on the particle surface are broken-off and washed away by ultrasonic streaming in the liquid.
This means an even andfine dispersion is required as the well-dispersed particles are surrounded by a boundary layer of molecules attracted to the particle surface.
Ultrasonication can separate particle agglomerates, clean particle surfaces and reduce the viscosity of shear thinning or thixotropic liquids.
But the most important effect of the tribodynamic activation of the particles is that the electric charges within the microfine particles become polarized in such a way that the negative charges are shifted to the particle surface while the positive charges remain more or less at the centre.
For small nonporous particles, the separation occurs on the particle surface and band-broadening is alleviated because of the short diffusion path, thereby occurring a faster mass transfer.
For almost every product,it is important that particles are separated from other particles in order to enlarge the particle surface area and to achieve an uniform distribution.