(2) The time of multiple coal discharge and the control of coal discharge quantity: In respect of the LLTCC mining operation at Tashan coal mine, because the ply of the top coal is very thick and the top coal is very hard, after top coal caving, the upper top coals cannot fully break due to limited caving space.
Differential calculus deals with the rate of change of one quantity with respect to another, for example the rate at which an object's speed changes with respect to time.
Derivative (also called differential quotient ; especially British) - the limit of the of the increment of a function (generally y) to the increment of a variable (generally x) in that function, as the latter tends to 0; the instantaneous change of one quantity with respect to another, as velocity, which is the instantaneous change of distance with respect to time.
One of the shortcomings of microarray data is that they provide a small quantity of samples with respect to the number of genes.
Our approach delivers recursions which not only can be implemented to yield a rapid, robust and high-order numerical scheme, but also give a new proof of analyticity of scattering quantities with respect to the bifurcation parameter of the surface family.
To determine the change of the state quantities one has to solve the differential equations for the conserved quantities under respect of the boundary conditions.
In addition, Jacobians of the former quantities with respect to optical parameters of the atmosphere are analyzed.
This work couples a nonlinear shell model to an unsteady vortex lattice solver, and then computes analytical design gradients: the derivative of aerodynamic force/power quantities with respect to a large vector of thickness variables.
It may also be assumed that the electric field and conductivity in each of these small cubes is fixed (i.e. variation of these two quantities with respect to the small size of the cube is negligible).
Gradient-enhanced Uncertainty Quantification (UQ) has received recent attention, in which the derivatives of a Quantity of Interest (QoI) with respect to the uncertain parameters are utilized to improve the surrogate approximation.
It turns out that the density function may also be used to obtain information about the average value of each physical quantity of the system with respect to any given volume of phase space.
