The mole is the substance quantity of the set which contains exactly as many elementary individual units (e.g. atoms, molecules or other particles) as the atoms in 0.012 kg of the nuclide of the carbon isotope 612C. It is widely applied in physics, chemistry and other branches. Info: [...
In each case the defining equation was analogous to the corresponding defining equation for the linear or tangential quantity. Additionally, corresponding tangential and angular variables are related for a particle in circular motion. In order to emphasize this analogy further, we have collected these ...
whereDis the dimension matrix of the input variables (Fig.1c). Each column of the dimension matrix is the dimension vector of the corresponding variable. The dimension vector represents the exponents of the physical quantity with respect to the fundamental dimensions. It is worth noting that there...
.Inmanycomputersimul ationsforfrac - tur eprocess,therelativeerorsofcalculatedfrac taldimen- sionandroughnessexponentarearound10%【7～20。.ormore than10%【2 231. Infact.therelativeerrorofthephysical quantityrelatedtofrac taldimensionorroughnessexponent infractureprocessmayfarexceed10%iftherelativeerrorof ...
This value should be interpreted as an effective quantity taking into account an increase of attenuation in a powder bed in comparison to fully dense material [33,34]. 2.2. PBF-experiments To get a better understanding of the energy input and distribution during PBF, experimental investigations ...
The mole is the substance quantity of the set which contains exactly as many elementary individual units (e.g. atoms, molecules or other particles) as the atoms in 0.012 kg of the nuclide of the carbon isotope 612C. It is widely applied in physics, chemistry and other branches. Info: [...
The subscripts f, nf and ∼ refer, respectively, to the base fluid, the nanofluid (effective properties) and the relative nanofluid/base fluid ratio of the physical quantity under consideration. The dimensionless boundary conditions are as follows for thermal, concentration and hydrodynamic boundary ...
5.PhysicsA physical property, such as mass, distance, time, or a combination thereof, regarded as a fundamental measure of a physical quantity:Velocity has the dimension of distance divided by time. 6.A realm of existence, as in a work of fiction, that is physically separate from another ...