We examined the chemical reactions influencing dissolved concentrations, speciation, and transport of naturally occurring arsenic ~As! in a shallow, sand and gravel aquifer with distinct geochemical zones resulting from land disposal of dilute sewage effluent. The principal geochemical zones were: ~1! the uncontaminated zone above the sewage plume @350 mM dissolved oxygen ~DO!, pH 5.9#; ~2! the...

A simple algorithm is presented for evaluating scattering parameters of a two-port network. This technique uses the indefinite admittance matrix to calculate scattering or any other desired set of two-port parameters.

Seven phthalate (PAEs) and nine organophosphate esters (OPEs) were measured in surface sediments across the Gulf of Lion (NW Mediterranean Sea) at twelve stations characterized by different anthropogenic signatures. ∑PAEs ∑OPEs concentrations ranged from 2 to 766 ng/g DW (av. 196 DW) 4 227 54 DW), respectively. Our analysis potential sources these organic plastic additives suggests that dominan...

Port organizations have focused their efforts on physical or tangible assets, generating profitability and value. However, it is recognized that the greatest sustainable competitive advantage is the creation of knowledge using the intangible assets of the organization. The Balanced ScoreCard, as a performance tool, has incorporated intangible assets such as intellectual, structural and social c...

Dive observations, echogram transects, core sampling, and a seismic profile revealed that the lake bed of north-central Lake Erie is an extensive terrace cut by storm waves currents. The erosional unconformity on which Late Wisconsinan (Port Bruce Mackinaw) glacial units crop out. Beds massive diamictons, glaciolacustrine sediments containing parallel reflections, out alternately from west to e...

Abstract. This paper describes a dataset consisting of 47 hyperspectral-reflectance measurements plastic litter samples. The samples include virgin and real from the Port Antwerp. They were measured in dry conditions Flemish Institute for Technological Research (VITO) calibration facility, selection also wet submerged water tank at Flanders Hydraulics. construction on top allowed us to submerge...

Acquired port-wine stain is a rare vascular lesion that mimics a congenital port-wine stain clinically and histologically, but is acquired after birth. A survey on more than 60 reported cases in the literature reveals that most of these cases are idiopathic, but some of the cases developed after physical or mechanical trauma, hormonal changes, chronic sun exposure, and medications (OCP, i...