METHODS Using the Shim-pack ODS column. The mobile phase consisted of methanol-acetonitrile-2% formic acid(29:9:62) at the flow rate of 1.0 ml·min-1,and the detection wavelength was 286 nm,with column temperature at 35℃.
Methods Carvedilol was extracted from plasma and the applied column was Shim-pack VP-ODS (150mm×4.6mm,5μm). The mobile phase consisted of methanol and water(60∶40)- acetonitrile(88∶12). Carvedilol was detected by UV absorption at 280nm.
This boils down to a Duistermaat-Heckman exact stationary phase calculation, involving a Poisson structure on the dual symmetric space G0/K discovered by Evens and Lu.
In addition, if the scaling functions have at least asymptotic linear phase, then we prove that they converge to the "sinc" function and their corresponding orthonormal wavelets converge to the "difference" of two sinc functions.
We describe the main results obtained in a joint work with Athanasopoulos and Caffarelli on the regularity of viscosity solutions and of their free boundaries for a rather general class of parabolic phase transition problems.
The spectral phase of a function f:?2N→? is given by φf(k)=arg for k ∈ ?2N, where denotes the discrete Fourier transforms of f.
Phase retrieval techniques for radar ambiguity problems
The difference of pressure distribution is caused by the lithologies, facies and faults.
The Cangxi reef flat possesses the largest platform edge shallow facies domestically found, and has a typical prograding sequence.
Abundant normal alkanes, isoprenoid hydrocarbons, terpanes and steranes were detected in 23 samples taken from the carbonate platform to basin facies in the Devonian Frasnian-Famennian (F-F) transition of Guangxi, South China.
A review of lithostratigraphic criteria for subdividing the two adjacent formations provides new regional correlations between the formations and related stratigraphic successions and facies.
Pool elements, such as preservation conditions, traps and migration paths, and reservoir rocks and facies, also served as important control factors to marine gas pools in South China.