@article {1512,
	title = {A pseudospectral method of solution of Fisher{\textquoteright}s equation},
	journal = {Journal of Computational and Applied Mathematics},
	volume = {193},
	number = {1},
	year = {2006},
	note = {ISI Document Delivery No.: 046PTTimes Cited: 9Cited Reference Count: 59},
	month = {Aug},
	pages = {219-242},
	type = {Article},
	abstract = {In this paper, we develop an accurate and efficient pseudospectral solution of Fisher{\textquoteright}s equation, a prototypical reaction-diffusion equation. The solutions of Fisher{\textquoteright}s equation are characterized by propagating fronts that can be very steep for large values of the reaction rate coefficient. There is an ongoing effort to better adapt pseudospectral methods to the solution of differential equations with solutions that resemble shock waves or fronts typical of hyperbolic partial differential equations. The collocation method employed is based on Chebyshev-Gauss-Lobatto quadrature points. We compare results for a single domain as well as for a subdivision of the main domain into subintervals. Instabilities that occur in the. numerical solution for a single domain, analogous to those found by others, are attributed to round-off errors arising from numerical features of the discrete second derivative matrix operator. However, accurate stable solutions of Fisher{\textquoteright}s equation are obtained with a multidomain pseudospectral method. A detailed comparison of the present approach with the use of the sinc interpolation is also carried out. (c) 2005 Elsevier B.V. All rights reserved.},
	keywords = {ACCURACY, COLLOCATION METHOD, DISCRETE SINGULAR CONVOLUTION, error, Fisher equation, NUMERICAL-SOLUTION, PARABOLIC EQUATIONS, PARTIAL-DIFFERENTIAL-EQUATIONS, POINTS, pseudospectral method, REACTION-DIFFUSION-EQUATIONS, round-off, sinc interpolation, TRAVELING-WAVE SOLUTIONS},
	isbn = {0377-0427},
	url = {<Go to ISI>://000237824200015},
	author = {Olmos, D. and Shizgal, B. D.}
}
@article {4753,
	title = {An interface with a linear quadrupole ion guide for an electrospray-ion trap mass spectrometer system},
	journal = {Analytical Chemistry},
	volume = {72},
	number = {22},
	year = {2000},
	note = {ISI Document Delivery No.: 374LNTimes Cited: 30Cited Reference Count: 41},
	month = {Nov},
	pages = {5647-5654},
	type = {Article},
	abstract = {A new ion sampling interface for an electrospray ionization 3D ion trap mass spectrometer system is described. The interface uses linear rf quadrupoles as ion guides and ion traps to enhance the performance of the 3D trap. Trapping ions in the linear quadrupoles is demonstrated to improve the duty cycle of the system. Dipolar excitation of ions trapped in a linear quadrupole is used to eject unwanted ions, A resolution of ejection of up to 254 is demonstrated for protonated reserpine ions (m/z 609.3), A composite waveform with a notch in frequency space is used to eject a wide range of matrix ions and to isolate trace analyte ions in a linear quadrupole before ions are injected into the 3D trap. This is useful to overcome space charge problems in the 3D trap caused by excess matrix ions. For trace reserpine in a 500-fold molar excess of poly(propylene glycol) (PPG), it is demonstrated that the resolution and sensitivity of the 3D trap can be increased dramatically with ejection of the excess PPG matrix ions. In comparison to ejection of matrix ions in the 3D trap with a similar broad-band waveform, a ii-fold increase in sensitivity with a 7 times shorter acquisition time was achieved.},
	keywords = {accumulation, ACCURACY, DIGESTS, DISSOCIATION, FILTERED NOISE FIELD, INJECTION, IONIZATION, PEPTIDES, PROTEINS, storage},
	isbn = {0003-2700},
	url = {<Go to ISI>://000165346800018},
	author = {Cha, B. C. and Blades, M. W. and Douglas, D. J.}
}
