Now showing items 1-10 of 23
Composition and origin of summertime air pollutants at Deep Creek Lake, Maryland
(Elsevier, 1989)
A 1 month intensive summertime field study conducted in rural western Maryland resulted in a comprehensive set of fine particle, gaseous and meteorological data. Sulfur in the assumed form of ammonium sulfate accounted for ...
Optimal estimators for ambient air quality levels
(Elsevier, 1992)
Procedures to estimate missing data, determine extrema, and derive uncertainties for data collected in ambient air monitoring networks are presented. The optimal linear estimators used obtain unbiased, minimum variance ...
Critical analysis of the graphical determination of hansen's solubility parameters for lightly crosslinked polymers
(Wiley Subscription Services, Inc., A Wiley Company, 1996-12-19)
The most widely accepted method for determining Hansen's three-dimensional solubility parameters (3DSP) for crosslinked polymers entails graphically estimating the center of a spherical region in 3DSP-coordinate space whose ...
Comparison of methods of analysis of polychlorinated biphenyls in oils
(Elsevier, 1983)
In order to standardize and validate methods for the analysis of polychlorinated biphenyls in transformer oil, waste oil, hydraulic fluid and capacitor oil in the concentration range 30-500 ppm, a study was performed which ...
Optochemical Nanosensors and Subcellular Applications in Living Cells
(Springer-Verlag; Springer-Verlag Wien, 1999-06)
What may be the smallest anthropogenic devices to date, spherical sensors (wireless and fiberless) with radii as small as 10 nm have been produced. This class of optochemical PEBBLE (Probe Encapsulated By Biologically ...
Investigation of nematic liquid crystals as surface acoustic wave sensor coatings for discrimination between isomeric aromatic organic vapors
(Elsevier, 1994-04-11)
The use of thermotropic nematic liquid crystals (LC) as surface acoustic wave (SAW) vapor sensor coatings were investigated. Responses to four pairs of isomeric aromatic organic vapors were measured using two LC coatings ...
Improving exposure assessment in environmental epidemiology: Application of spatio-temporal visualization tools
(Springer-Verlag; Springer-Verlag Berlin Heidelberg, 2005-05)
A thorough assessment of human exposure to environmental agents should incorporate mobility patterns and temporal changes in human behaviors and concentrations of contaminants; yet the temporal dimension is often ...
Atmospheric acidity measurements on allegheny mountain and the origins of ambient acidity in the Northeastern United States
(Elsevier, 1989)
Atmospheric acidity as HNO3(g), SO2(g), and aerosol H+ was measured on Allegheny Mountain and Laurel Hill in southwest Pennsylvania in August 1983. The aerosol H+ appeared to represent the net after H2SO4 reaction with ...
Regional trace element and sulfate transport
(Elsevier, 1994-05)
The goal of this paper was to investigate the transport of atmospheric sulfate and trace elements across the northeastern U.S.A. Data from a number of sites--Underhill (VT), Whiteface Mountain (NY), Mayville (NY), Laurel ...