The appropriate initial and boundary conditions for a finite soil column are (31)Cxt=0=0 (32)−D∂C∂x+υCx=0t=υC00<t≤t00t>t0 (33)∂C∂xx=L=0 where Co is the input Mo(VI) concentration (mg/L), to is the duration of solute input pulse (hour), and L denotes ...
aThose writers who were respected and entrusted with important positions by the government,especially the socially oriented writers,believed that a golden era for literature was coming,and that as educators,messengers for the masses,and policy executors in step with the government,wri 尊敬并且委托以...
The pulse-decay method is believed to be more suitable than the steady-state method for permeability measurements on tight porous media because it records pressure variations instead of flow rates and does not require the establishment of a steady state. Most of the previous analytical solutions ...
Cerebral perfusion is determined by segmental perfusion pressure for the intracranial compartment (SPP), which is lower than cerebral perfusion pressure (CPP) because of extracranial stenosis. We used the Thevenin model of Starling resistors to represent the intra-extra-cranial compartments, with outflow...
Here, Ω ⊂ ℝ2 denotes a bounded domain, and u = (u1, u2), p, and f = (f1, f2) stand for the flow velocity, the pressure, and the external force, respectively. Density and viscosity of the fluid are assumed to be the unity. Homogeneous Dirichlet boundary condition is treated ...
Quasi-hydrostatic compression of magnesium oxide to 52 GPa: Implications for the pressure-volume-temperature equation of state Room temperature static compression of MgO (periclase) was performed under nearly hydrostatic conditions using energy dispersive synchrotron X-ray diffract... S Speziale,Chang‐...
functionz=pulse(t) z=(-.0002*t^3)+(0.0851*t^2)-(8.7073*t)+52.853;% code The differential equation code is here: functionf = RP(t,y) p_ref = 3200;%reference pressure Pa rho = 1e3;%density of fluid kg/m3 f= [y(2);( (p_ref- pulse(t)) )/(rho*y(1))-(1.5*y(2)^...
A polarization-maintaining pedestal-free femtosecond pulse compressor incorporating an ultrafast dispersion-imbalanced nonlinear optical loop mirror We report a polarization-maintaining and dispersion-flattened pulse compressor based on a dispersion decreasing fiber (DDF) for compression and a dispersio... ...
英文: A pressure draw-down equation is first established for partial penetration gas well in Darcy-flow dominated domain in bottom water reservoir, and then a binomial deliverability equation is obtained by combining with Non-Darcy binomial radial flow equation中文: 文章首先导出底水气藏打开不完善井...
aI'm waiting for reply BY MSK 我由MSK等待回复[translate] aDuring combustion, a good pressure fit is one of the most important parts of the analysis because it, and its first derivative are the primary in put to the nonlinear differential equation solution, Eq. (6).points 在燃烧期间,好压...