dispersed phase वाक्य
उदाहरण वाक्य
मोबाइल
- If the fraction of rubber is greater than 40 % phase inversion may be possible when the blend cools, resulting in an amorphous continuous phase, and a crystalline dispersed phase.
- The size of the generated droplets is mainly controlled by the flow rates of the continuous phase and dispersed phase, interfacial tension between two phases and the geometry used for the droplet generation.
- The dispersed phase is typically ( though not always ) treated in a Lagrangian framework, that is, the dynamics are understood from the viewpoint of fixed particles as they move through space.
- The radius of a droplet in the emulsion is dependent on surfactant length, L s, volume fraction of dispersed phase, ? d, and volume fraction of surfactant, ? s.
- Based on the nature of interaction between the dispersed phase and the dispersion medium, colloids can be classified as : "'Hydrophilic colloids "': These are water-loving colloids.
- "Note 1 " : Macro-emulsions comprise large droplets and thus are " unstable " in the sense that the droplets sediment or float, depending on the densities of the dispersed phase and dispersion medium.
- A problem with the Lagrangian treatment of the dispersed phase is that once the number of particles becomes large, it may require a prohibitive amount of computational power to track a sufficiently large sample of particles required for statistical convergence.
- A different description : A hydrocyclone is a mechanical device designed to reduce or increase the concentration of a dispersed phase, solid, liquid or gas of different density, by means of centripetal forces or centrifugal forces within a vortex.
- From the technological standpoint, a particularly desirable approach to fabricating particulate composites is to coat the matrix or its precursor onto fine particles of the dispersed phase with good control of the starting dispersed particle size and the resultant matrix coating thickness.
- "Note 3 " : The diameters of the droplets constituting the " dispersed phase " usually range from approximately 10 nm to 100 ?m; i . e ., the droplets may exceed the usual size limits for colloidal particles.
- The mixture is injected into the hydrocyclone in such a way as to create the vortex and, depending upon the relative densities of the two phases, the centrifugal acceleration will cause the dispersed phase to move away from or towards the central core of the vortex.
- It is commonly modelled as a colloid, with asphaltenes as the dispersed phase and maltenes as the continuous phase . and " it is almost impossible to separate and identify all the different molecules of asphalt, because the number of molecules with different chemical structure is extremely large ".
- To understand the formation and properties of such dispersions ( incl emulsions ), it must be considered that the dispersed phase exhibits a " surface ", which is covered ( " wet " ) by a different " surface " that, hence, are forming an interface ( chemistry ).
- "Note 4 " : An emulsion is termed an oil / water ( o / w ) emulsion if the dispersed phase is an organic material and the " continuous phase " is water or an aqueous solution and is termed water / oil ( w / o ) if the dispersed phase is water or an aqueous solution and the continuous phase is an organic liquid ( an " oil " ).
- "Note 4 " : An emulsion is termed an oil / water ( o / w ) emulsion if the dispersed phase is an organic material and the " continuous phase " is water or an aqueous solution and is termed water / oil ( w / o ) if the dispersed phase is water or an aqueous solution and the continuous phase is an organic liquid ( an " oil " ).
- As an example, oil and water can form, first, an oil-in-water emulsion, wherein the oil is the dispersed phase, and water is the dispersion medium . ( Lipoproteins, as implemented by all complex living organisms, is one example of this . ) Second, they can form a water-in-oil emulsion, wherein water is the dispersed phase and oil is the external phase.
- As an example, oil and water can form, first, an oil-in-water emulsion, wherein the oil is the dispersed phase, and water is the dispersion medium . ( Lipoproteins, as implemented by all complex living organisms, is one example of this . ) Second, they can form a water-in-oil emulsion, wherein water is the dispersed phase and oil is the external phase.
- Due to these difficulties, existing turbulence models tend to be " ad hoc ", that is, the range of applicability of a given model is usually suited toward a highly specific set of parameters ( such as geometry, dispersed phase mass loading and particle reaction time ), and are also restricted to low Reynolds numbers ( whereas the Reynolds number of flows of engineering interest tend to be very high ).
- "R " " i " is the net rate of production of species " i " by chemical reaction and " S " " i " is the rate of creation by addition from the dispersed phase and the user defined source . " J " " i " is the diffusion flux of species " i ", which arises due to concentration gradients and differs in both laminar and turbulent flows.
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