Yong Yung Lee

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Crop improvement in bahiagrass (Paspalum notatum Flüggé) is limited by apomixis in most natural tetraploids, however, diploid sexual types occur. Production of sexual tetraploids by chromosome doubling will allow hybridization with apomictic tetraploids. Diploid bahiagrass (Paspalum notatum Flüggé) embryogenic callus tissue was exposed to three(More)
J. I. Lo,1 T. S. Yih,1 Y. X. Luo,2 H. S. Fung,3 Y. Y. Lee,3 and T. N. Chang2 1Department of Physics, National Central University, Chungli 32054, Taiwan, Republic of China 2Department of Physics and Astronomy, University of Southern California, Los Angeles, California 90089-0484, USA 3National Synchrotron Radiation Research Center, Hsinchu 30039, Taiwan,(More)
We present a joint experimental and theoretical investigation to resolve the discrepancy in the ratio of relative peak cross sections for narrow atomic resonances among various experimental spectra and also between theory and experiment. Our study includes an effort to measure both the absorption and ionization spectra in a single experimental set-up. We(More)
G LARGE ANGLE T-+p ELASTIC SCATTERING AT 3.63 GeV/c* Martin L. Per1 Stanford Linear Accelerator Center, Stanford University, Stanford, California and Yong Yung Lee f and Erwin Marquit University of Michigan, Ann Arbor, Michigan ABSTRACT The differential cross section for elastic scattering of 3.63 Tmesons on protons was studied with a hydrogen bubble(More)
We present a joint experimental and theoretical investigation to resolve the discrepancy in the ratio of relative peak cross sections for narrow atomic resonances among various experimental spectra and also between theory and experiment. Our study includes an effort to measure both the absorption and ionization spectra in a single experimental set-up. We(More)
The workshop sessions were attended by approximately 25-30 people from many laboratories and universities. From the beginning, we decided to concentrate the discussions on polarized protons in circular accelerators and storage rings because of the limited time. Topics such as polarized electrons were discussed only when the subject was relevant to proton(More)
In our effort to measure both the absorption and ionization spectra in a single experimental set-up, we have demonstrated that the column density not only affects strongly the structure profile of an atomic resonance but also alternates significantly the back ground cross sections in an ionization measurement. In addition, we present a procedure that,(More)
Proton accelerators were originally developed for nuclear physics experiments as an alternative to radioactive source or cosmic rays. From the earliest days, the energy of the proton has been the most important design parameter of the accelerator builders. As early proton accelerators one can name the Van de Graaff[2] and Cockcroft-Walton[3] devices. They(More)
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