The study of linear control problems with exponential-ofquadratic cost function was initiated in Jacobson (1973) where the author studies discrete-time and continuoustime state feedback problems. The discrete-time linear output feedback problems with exponential-of-quadratic cost function is studied in Whittle (1981). Bensousssan and Schuppen (1985) studied the continuous-time output feedback p...

[1] We examine the sources and chemistry affecting nitrogen oxides (NOx=NO+NO2) over the tropical Pacific (30 S–20 N) using observations from the Pacific ExploratoryMission to the Tropics B (PEM-Tropics B) aircraft mission conducted in March–April 1999. A global model of tropospheric chemistry driven by assimilated meteorological data is used to interpret the observations. Median concentrations...

The following study is based on a hybrid statistical-deterministic model designed for the assessment of the daily concentration of sulfur dioxide, carbon monoxide  and particulate matter (PM10) as major pollutants in the Greater Tehran Area (GTA): the capital of Iran. The model uses three available or assessable variables including economic, meteorological and environmental in the GTA for the y...

It is proved that all groups of finite U -rank that have the descending chain condition on definable subgroups are totally transcendental. A corollary is that any stable group that is definable in an o-minimal structure is totally transcendental of finite Morley rank. Motivation for this paper is a problem concerning stable groups definable in ominimal structures. One theorem is that any defina...

The November 1996 jökulhlaup that burst from the Vatnajökull ice cap onto Skeiðarársandur was the highest-magnitude flood ever measured on the largest active glacial outwash plain (sandur). Centimeter-scale elevation transects, measured from repeat-pass airborne laser altimetry missions flown in 1996 (pre-flood), 1997, and 2001, show that sediment deposition exceeded erosion across the central ...