Structure exists in sequences ranging from human language and music to the genetic information encoded in our DNA. This thesis shows how that structure can be discovered automatically and made explicit. Rather than examining the meaning of the individual symbols in the sequence, structure is detected in the way that certain combinations of symbols recur. In speech and text, these repetitions fo...

Recent evidence indicates an overall retreat from marriage. Cohabitation has contributed to this trend as cohabiting unions are increasingly not resulting in marriage. As an initial step in understanding why some cohabiting couples do not marry, we examine factors associated with cohabitors= marriage expectations. We focus particularly on the effects of socioeconomic status and race/ethnicity b...

In the Manning equation the hydraulic radius can be defined as the cross-section dimension of the shape. In pipe flow the bed shear stress is assumed to be uniformly distributed along the wetted perimeter which cannot be true in open channel flow. Hence, three approximation of the true boundary shear-stress distribution are examined and more practical conveyance depth or resistance radius formu...

The manning of a ship is a major driver of total ownership cost. The Government Accounting Office (GAO) states that “the cost of the ship’s crew is the largest expense incurred over the ship’s lifetime” [1]. This cost is largely determined by decisions made during concept design, which may include significant new support costs ashore. Consequently, reliable manpower estimates and related design...

81. General .................................................. 8101 83. Masters and officers ........................... 8301 85. Pilots ...................................................... 8501 87. Unlicensed personnel ......................... 8701 89. Small vessel manning ......................... 8901 91. Tank vessel manning standards ...... 9101 93. Great Lakes pilotage ....................

Counterion condensation is a basic feature of 2D electrostatics exhibited by highly charged rodlike polymers such as DNA. In the framework of the Poisson Boltzmann equation with salt, we show that such a polymer of radius a attracts a condensate of thickness RM=A(axi)1/2 where xi is the Debye length and A depends weakly on the polymer charge density q0. To leading order in 1/ln(xi/a), we derive...