Mo Hwa Wang

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New photobathymetry and water quality software is described here that utilizes subpixel analysis software (Subpixel Classifier) with an autonomous image calibration procedure and analytic retrieval algorithm to simultaneously retrieve and report bottom depth and the concentrations of suspended chlorophyll, suspended sediments, and colored dissolved organic(More)
Longitudinal coupled-bunch instabilities in the SRRC 1.3 GeV storage ring have been studied by analyzing the signals picked up from the stripline electrodes and rf power reflected from the cavities. The current dependence of the instability strengths was measured. As a cross check, the bunch phase jitters as a function of beam current has also been measured(More)
The equation of motion of the bunched beam is governed by the guiding fields, focusing quadrupole fields, nonlinear higher order fields such as the sextupole fields, and wake fields. It could be uncoupled or coupled motion either in the transverse planes and/or between transverse and longitudinal planes. In this study we are interested in the investigation(More)
Using natural, cheap and porous mineral bentonite as the carrier, adding some urea-formaldehyde resin as binder and preparing the slow-release potassium fertilizer with electric pressure machine, the experiment gave a preliminary study on the sustained release effect of the self made slow-release fertilizer by the method of water dissolution rate, the sand(More)
Manuel A. Rivas, Daniel Graham, Patrick Sulem, Christine Stevens, A. Nicole Desch, Philippe Goyette, Daniel Gudbjartsson, Ingileif Jonsdottir, Unnur Thorsteinsdottir, Frauke Degenhardt, Sören Mucha, Mitja I. Kurki, Dalin Li, Mauro D’Amato, Vito Annese, Severine Vermeire, Rinse K. Weersma, Jonas Halfvarson, Paulina Paavola-Sakki, Maarit Lappalainen, Monkol(More)
The effects of amplitude modulation of RF cavity voltage on the longitudinal beam dynamics were studied experimentally at SRRC by using a streak camera system. The characteristics of parametric resonance in single bunch beam was investigated both by simulation and measurement. The formation of beamlets in the bunch helps to damp the coherent bunch(More)
VERTICAL BEAM SIZE CONTROL IN TLS AND TPS C.C. Kuo, J.R. Chen, P.J. Chou, H.P. Chang, K.T. Hsu, G.H. Luo, H.J. Tsai, D.J. Wang, M.H. Wang National Synchrotron Radiation Research Center, Hsinchu, Taiwan A. Chao , SLAC W.T. Weng, BNL Abstract Vertical beam size control is an important issue in the light source operations. The horizontal-vertical betatron(More)
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