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Now showing items 21-30 of 128
WAAS error, integrity and availability modeling for GPS based aircraft landing system.
(2004)
From its initial conception to deployment, the Wide Area Augmentation System (WAAS) was hailed as revolutionary for the navigation industry. However, the WAAS deployment effort has suffered significant delays and budget ...
Trust in virtual teams: The role of task, technology and time.
(2004)
Virtual teams face major impediments to developing trust given their relative inability to evaluate other members' abilities, motivations and work patterns. However, trust is the foundation on which virtual teams can build ...
The effects of wind shear on convective boundary layer entrainment.
(2004)
24 large eddy simulations (LES) were conducted for CBLs growing under varying conditions of surface buoyancy flux, free atmospheric stratification, and wind shear. With the intent of elucidating the effects of surface layer ...
Alterations in land surface-atmosphere processes resulting from the 1988 Greater Yellowstone Area fires.
(2004)
Meteorological observations for the 10-year period 1984 to 1993 have been collected from 178 stations within the GYA, quality assured, and spatially and temporally interpolated to produce gridded data suitable for model ...
Redox functional groups of humic substances.
(2004)
A new analytical technique based on palladium (Pd) and H2 catalytic system showed significant potential as a useful method for reliably assessing redox sites in humic substances. The technique identifies redox sites as a ...
Characterization of the second-half reaction of O-acetylserine sulfhydrylase-A and the reaction of O-acetylserine sulfhydrylase-B from Salmonella typhimurium.
(2004)
The O-acetylserine sulfhydrylase-B (OASS-B) was recently overexpressed and purified to electrophoretic homogeneity (>98% pure). Both the quantity and purity of the enzyme permit more kinetic and structurally based studies ...
Architects of the self: Social scientists and the construction of the individual in postwar America.
(2004)
American social science experienced unprecedented institutional growth during and after the Second World War due in part to the increased need for techniques in human resource management. As a result, scientific representations ...
Effect of post-fill pressure and nanoclay on void morphology in resin transfer molded composites.
(2004)
Resin transfer molded (RTM) composites usually suffer from the formation of flow-induced defects such as voids. Detrimental effects of voids on performance of molded parts have been studied extensively. Yet, knowledge of ...
Adolescents and communication regarding safer sex behavior.
(2004)
As adolescent pregnancy, childbearing and STD transmission has continued to be a pervasive problem in American society, it has become more and more critical to understand the nuances of teen sexual behavior. Policy makers, ...
Microbially-mediated reduction and oxidation of uranium: Implications for the bioremediation of uranium(VI)-contaminated aquifers.
(2004)
Mechanisms of nitrate-dependent U(IV) were assessed by incubating biogenic U(IV) with nitrite or Fe(III). Fe(III) rapidly but incompletely oxidized U(IV) since Fe(II) accumulated during the reaction and inhibited any further ...