196 research outputs found

    Consideration in the Design of Art Scholarly Databases

    Get PDF
    published or submitted for publicatio

    Retrieval Requirements of Faceted Thesauri in Interactive Information Systems

    Get PDF
    The An and Architecture Thesaurus (AAT) will be used as the example of a faceted thesaurus that raises problems for retrieval in existing data entry and retrieval systems. This paper first describes AATs classified, faceted structure and the AAT Application Protocol, which is a guideline for building semantic groupings of terms into complex expressions and strings at the time of indexing. Retrieval is hampered by retrieval software in current systems that neither exploit the relationships expressed in the thesaurus nor develop the necessary syntax to search precoordinate expressions and strings. This paper identifies a number of requirements that must be met by automated retrieval systems implemented to search the AAT or other faceted, hierarchical thesauri. The body of the paper confines itself strictly to requirements for execution of retrieval logic and only in the final section suggests some user interface features that would be desirable for such systems

    Ring-Interferometric Sol-Gel Bio-Sensor

    Get PDF
    A biosensor embodying the invention includes a sensing volume having an array of pores sized for immobilizing a first biological entity tending to bind to a second biological entity in such a manner as to change an index of refraction of the sensing volume. The biosensor further includes a ring interferometer, one volumetric section of the ring interferometer being the sensing volume, a laser for supplying light to the ring interferometer, and a photodetector for receiving light from the interferometer

    Ring-Resonator/Sol-Gel Interferometric Immunosensor

    Get PDF
    A proposed biosensing system would be based on a combination of (1) a sensing volume containing antibodies immobilized in a sol-gel matrix and (2) an optical interferometer having a ring resonator configuration. The antibodies would be specific to an antigen species that one seeks to detect. In the ring resonator of the proposed system, light would make multiple passes through the sensing volume, affording greater interaction length and, hence, greater antibody- detection sensitivity

    Retrieval Requirements of Faceted Thesauri in Interactive Information Systems

    Get PDF
    The An and Architecture Thesaurus (AAT) will be used as the example of a faceted thesaurus that raises problems for retrieval in existing data entry and retrieval systems. This paper first describes AATs classified, faceted structure and the AAT Application Protocol, which is a guideline for building semantic groupings of terms into complex expressions and strings at the time of indexing. Retrieval is hampered by retrieval software in current systems that neither exploit the relationships expressed in the thesaurus nor develop the necessary syntax to search precoordinate expressions and strings. This paper identifies a number of requirements that must be met by automated retrieval systems implemented to search the AAT or other faceted, hierarchical thesauri. The body of the paper confines itself strictly to requirements for execution of retrieval logic and only in the final section suggests some user interface features that would be desirable for such systems

    Flattening the Curve: The effects of intervention strategies during COVID-19

    Get PDF
    COVID-19 has plagued countries worldwide due to its infectious nature. Social distancing and the use of personal protective equipment (PPE) are two main strategies employed to prevent its spread. A SIR model with a time-dependent transmission rate is implemented to examine the effect of social distancing and PPE use in hospitals. These strategies’ effect on the size and timing of the peak number of infectious individuals are examined as well as the total number of individuals infected by the epidemic. The effect on the epidemic of when social distancing is relaxed is also examined. Overall, social distancing was shown to cause the largest impact in the number of infections. Studying this interaction between social distancing and PPE use is novel and timely. We show that decisions made at the state level on implementing social distancing and acquiring adequate PPE have dramatic impact on the health of its citizens

    Designing Comminution Circuits with a Multi-Objective Evolutionary Algorithm

    Get PDF
    Mining is an important industry in Australia, contributing billions of dollars to the economy. The performance of a processing plant has a large impact on the profitability of a mining operation, yet plant design decisions are typically guided more by intuition and experience than by analysis. In this paper, we motivate the use of an evolutionary algorithm to aid in the design of such plants. We formalise plant design in terms suitable for application in a multi-objective evolutionary algorithm and create a simulation to assess the performance of candidate solutions. Results show the effectiveness of this approach with our algorithm producing designs superior to those used in practice today, promising significant financial benefits

    Book Reviews

    Get PDF

    Reframing assessment research: through a practice perspective

    Get PDF
    Assessment as a field of investigation has been influenced by a limited number of perspectives. These have focused assessment research in particular ways that have emphasised measurement, or student learning or institutional policies. The aim of this paper is to view the phenomenon of assessment from a practice perspective drawing upon ideas from practice theory. Such a view places assessment practices as central. This perspective is illustrated using data from an empirical study of assessment decision-making and uses as an exemplar the identified practice of ‘bringing a new assessment task into being’. It is suggested that a practice perspective can position assessment as integral to curriculum practices and end separations of assessment from teaching and learning. It enables research on assessment to de-centre measurement and take account of the wider range of people, phenomena and things that constitute it
    corecore