Abstract: A segmental precast posttensioned (SPPT) bridge pier is an economic recentering structural system. Understanding the seismic behavior of a SPPT system is an important step toward its application in high seismic zones. This ...

Abstract: Historical data on weather extremes and their effects on the nation's economy since the 1940s were assessed to develop annual measures of nationwide losses and to assess their temporal behavior. Trends were upward for ...

Abstract: Positive real constraints on the closed-loop of linear systems guarantee stable interaction with arbitrary passive environments. Two such methods of H∞ optimal controller synthesis subject to a positive real constraint are ...

Abstract: A theoretical nonlinear analysis of tilting-pad journal bearings is presented for small and large unbalance loads under isothermal conditions. The radial displacements of internal pad surface due ...

Abstract: Pad distortions are generally not taken into account for the dynamic study of tilting-pad journal bearings. The objective of this paper is both to show the influence of the three-dimensional ...

Abstract: The purpose of this paper is to study the response of a tilting-pad journal bearing submitted to an unbalance load. A pseudo-time transient analysis has been developed taking into account the ...

Abstract: In this paper an attempt is made to establish a relationship between airport capacity and economic development in the Chicago metropolitan area. Formulating a quantitative link between infrastructure and development has ...

Abstract: In the National Aeronautics and Space Administration (NASA) Design Reference Architecture 5.0 (DRA 5.0), fission surface power systems (FSPS) are described as “enabling for the human exploration of Mars.” This study ...