Shapere

A. Shapere and F. Wilczek, eds.. Geometrical Phases in Physics, World Scientific, Singapore, 1990. 

It is desired that the resonanee frequency of the tank circuit be 1 MHz. In ZVS QR converters, the tank circuit is not responsible for storing and passing on energy as it is in ZCS QR converters. The tank circuit can be seen more as an off-time transition shaper similar to a snubber when used in PWM converters. Here a wide range of values for both the inductor and the capacitor will work as long as their combined resonant frequency is 1 MHz or... 

Secord, J.A. Portraits of science quick and magical shaper of science. Science 297 (6 Sep 2002) 1648-1649. rhttp //www.sciencemag.org/cgi/reprint/297/5587/1648.pdfl. 

Pocock SJ, Shaper AG, Ashby D, et al. 1984. Blood lead concentration, blood pressure, and renal function. Br Med J 289 872-874. 

Pocock SJ. Shaper AG, Ashby D, et al. 1985. Blood lead and blood pressure in middle-aged men. In Lekkas TD, ed. International Conference on Heavy Metals in the Environment, vol. 1, Athens, Greece, September. Edinburgh, United Kingdom CEP Consultants, Ltd., 303-305. 

Pocock SJ, Shaper AG, Walker M, et al. 1983. Effects of tap water lead, water hardness, alcohol, and cigarettes on blood lead concentrations. J Epidemiol Community Health 37 1-7. 

Brew, K., Shaper, J.H., Olsen, K.W., Trayer, I.P., and Hill, R.L. (1975) Cross-linking of the components of lactose synthetase with dimethylpimelimidate. J. Biol. Chem. 250, 1434-1444. 

The hardware required for PEG work, although commercially available, is not usually included in the basic version of spectrometers. It consists of a gradient accessory, a gradient amplifier, a shielded probehead equipped with a z-gradient coil and a pulse shaper (which in itself is an integral part of the gradient accessory). 

The potential of broadband laser excitation and fs-pulse shaping for different microspectroscopy techniques ranges from pure dispersion compensation (in the case of SHG, THG), to highly functional pulse shaping (in the case of CARS), as summarized in Table 7.2. It is worth mentioning again that all techniques can be implemented in the same approach—broadband laser and pulse shaper. The detection technique of choice is just selected by the corresponding pulse shapes. 

FIGURE 7.7 Usage of the pulse shaper to simplify SPIDER pulse compression, as employed in the SAC-SPIDER method (von Vacano et al. 2006b, 2007). See text for details. 

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