Vertical migrations of living organisms and settling of particle-attached organisms lead to uneven distributions of biota at different depths in the water column. In ballast tanks, heterogeneity could lead to different population estimates depending on the portion of the discharge sampled. For example, concentrations of organisms exceeding a discharge standard may not be detected if sampling oc...

In studies of the salmon louse Lepeophtheirus salmonis (Krøyer, 1837), experimental design is complicated by a highly variable and unpredictable lice loss among common experimental tanks and a substantial rate of host transfer within tanks. When fish hosting L. salmonis are maintained in individual tanks, unspecific effects such as host transfer, louse predation by cohabitant hosts and agonisti...

Fixed-roof tanks are used extensively at manufacturing, waste management, and other facilities to store or process liquids containing volatile organic compounds. Federal and state air standards require the control of organic air emissions from many of these tanks. A common practice used for some fixed-roof tanks that are required to use controls is to vent the tank through an activated carbon c...

In this study, 200 Escherichia coli isolates from 22 rainwater tank samples in Southeast Queensland, Australia, were tested for the presence of 20 virulence genes (VGs) associated with intestinal and extraintestinal pathotypes. In addition, E. coli isolates were also classified into phylogenetic groups based on the detection of the chuA, yjaA, and TSPE4.C2 genes. Of the 22 rainwater tanks, 8 (3...

The liquid wastes produced during the processing of radioactive materials at the Savannah River Site were initially stored in large underground tanks constructed of carbon steel. These liquid wastes were generated from the Purex process (for producing plutonium) and the HM process (for producing tritium). The liquid wastes were designated as high-level wastes and lowlevel wastes. As the product...

Sloshing interaction in ship collisions is studied both experimentally and numerically. The rapid change in ship motions resulting from contact loading in collisions initiates violent sloshing inside partially filled liquid tanks on board. Sloshing affects the collision dynamics and reduces the amount of energy available for structural deformations. An understanding of this interaction phenomen...

Support for work practice is better conceptualised as support for activity taking place in a multidimensional space than as prescription of temporal task sequences. The notion of "common artefact" is introduced to illustrate, unify, and summarise recent research that identifies significant dimensions of cooperative work. Common artefacts may be mundane, everyday objects like hotel keyracks or s...

1Department of Prosthodontics, Sree Mookambika Dental College, Kulashekharam, Tamilnadu. 2Former HOD of Prosthodontics, Meenakshi Ammal Dental College, Chennai. 3Department of Prosthodontics, AECS Maaruti College of Dental Sciences and Research Centre, Bangalore. 4Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Poojappura, Trivandrum. * Correspondi...

This paper presents an innovative approach to solve the problem of missing transparency over competencies within virtual organizations. We based our work on empirical studies on the problem to cope with the problem of competence finding in such distributed organizations. Former studies have shown that central storage of profiles is inappropriate due to missing flexibility and high costs of main...