According to the aforementioned measurement results of the contact angle, the equationξ=dmaxd0=[We+123(1−cosθ)+4(We/Re)]1/2is used to calculate the spreading factorξ1of the solid material on the cured surface of the solid material and thespreading coefficientξ2on the cured surface ...
According to the aforementioned measurement results of the contact angle, the equationξ=dmaxd0=[We+123(1−cosθ)+4(We/Re)]1/2is used to calculate the spreading factorξ1of the solid material on the cured surface of the solid material and thespreading coefficientξ2on the cured surface o...
was the spreading coefficient, whereγoandγwwere the surface tension of the hydrocarbon oil and the aqueous solution respectively,γo/wwas the interfacial tension of the aqueous solution against hydrocarbon oil,
Determining the optimal coefficient of the spatially periodic Fisher–KPP equation that minimizes the spreading speedKPP equationTraveling waveMinimal speedSpreading speedThis paper is concerned with the spatially periodic Fisher–KPP equation u_t=(d(x)u_x)_x+(r(x)-u)u u_t=(d(x)u_x)_x+(...
(See the Method section). According to the definition of Kendall’s tau coefficient, −1 ≤ τ ≤ 1. In the most ideal case whereτ = 1, for each pair of two nodesiandj, ifiis ranked higher thanjby the method, the spreading originated fromiwill cover more targets than...
where n(x, t) is the population density, D(x) is the diffusion coefficient, u(x) is the advection velocity which is assumed to be proportional to the gradient of the favorability of environment f(x), i.e., \(u(x) \propto df(x)/dx\), and R(x, n) is the per capita growth...
1b): it can be related to the spreading coefficient S of nanofluids by the following equation: [25], [28]S=Pc(heq)heq+∫heq∞Π(h)dhwhere Pc(heq) represents the sum of the capillary pressures at the equilibrium film thickness, heq. Π(h) is the disjoining pressure, including the...
where γeqis an equivalent channel seen by mobile-station26. Distortion factor coefficient γeqcan be estimated using pilot signals and used, along with equation 3b, to obtain estimates of signal s1and/or s2. In slow fading channel conditions, both transmit diversity techniques, i.e., STS and...
It was found that individual spreading coefficients, as calculated from these surface energy parameters by the geometric mean equation, can be combined to one single parameter, called combined spreading coefficient S C . The latter is defined by the geometric mean of the polymer spreading coefficient...
the number of elements per unit area (cm2) of the crystal in this plane and d equals the diameter260of each cylindrical element. The coefficient μs(π/2) defines the probability of transmission (without hitting a scattering hole or channel) as a function of path length by the equation ...