Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI...

113

Transcript of Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI...

Page 1: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 2: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 3: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 4: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 5: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 6: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 7: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 8: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 9: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 10: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 11: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 12: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 13: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 14: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 15: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 16: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 17: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 18: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 19: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 20: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 21: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 22: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 23: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 24: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 25: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 26: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 27: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 28: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 29: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 30: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 31: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 32: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 33: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 34: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 35: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 36: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 37: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 38: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 39: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 40: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 41: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 42: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 43: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 44: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 45: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 46: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 47: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 48: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 49: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 50: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 51: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 52: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 53: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 54: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 55: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 56: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 57: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 58: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 59: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 60: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 61: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 62: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 63: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 64: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 65: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 66: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 67: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 68: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 69: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 70: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 71: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 72: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 73: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 74: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 75: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 76: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 77: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 78: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 79: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 80: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 81: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 82: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 83: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 84: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 85: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 86: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 87: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 88: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 89: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 90: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 91: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 92: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 93: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 94: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 95: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 96: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 97: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 98: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 99: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 100: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 101: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 102: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 103: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 104: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 105: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 106: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 107: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 108: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 109: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 110: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 111: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 112: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM
Page 113: Stanford Universitysnowweb.stanford.edu/thesis/Pao.pdf · Subject: A UMI Publication Keywords: UMI Publication Created Date: 10/12/1999 2:32:48 AM