44 research outputs found

    A geographical information system for marine management and its application to Xiamen Bay, China

    Get PDF
    Use of GIS (geographical information systems) is an effective and efficient method for gathering and processing large quantities of marine data, such as three-dimensional (3-D) time series of velocity vectors and suspended sediment and pollutant concentrations, and for visual display for result interpretation. A MGIS (marine geographical information system) has been developed for Xiamen Bay and other coastal regions in China. The system can handle object spatial property and a variety of data formats. Besides the standard data manipulation, plotting, and retrieval functions of GIS, two hydrodynamic/mass-transport numerical models for tidal flows, sediment transport, and pollutant dispersion have also been incorporated into the MGIS. Most of the modeling pre- and post-processing operations can be finished within the system. The pre-processing includes mesh generation, gathering of boundary and parallel computation information. The post-processing includes result posting, plotting and analysis. The MGIS has been implemented for more than three years and proven to be a useful integrated tool for generating and revealing various kinds of marine environmental information. Output from the MGIS may provide an important tool for harbor management, and feasibility or environmental impact assessment studies for new coastal structures. The system can be easily adopted in other marine areas through loading new databases and re-verifying the numerical model in the new domain

    Transcendent immanence, [yHWH] or Jehova in Spinoza's concept of God

    No full text
    grantor: University of St. Michael's CollegeSince the publication of Tractatus Theologico-Politicus (henceforth TTP) in 1670, Spinoza's concept of God has elicited strong critical responses based on conflicting interpretations. For over three hundred years, he has been called an atheist on the one hand and a pantheist on the other by Jewish. Christian and secular philosophers, for identifying God with Nature. Today, there is no consensus as to how we should identify Spinoza and categorize his concept of God. One of the main reasons these different interpretations of Spinoza's concept of God persists among scholars is that they discuss Spinoza's concept of God within the philosophical framework of the Ethics as the primary text. Even when they allude or directly refer to Spinoza's other works, they read them in the context of the Ethics. What is needed at present in Spinoza scholarship is a shift away from this trend of relying on the Ethics for an understanding of the concept of God towards an examination of Spinoza's remarks on God in the Ethics in conjunction with his statement in the TTP regarding the Tetragrammaton. Unlike any other of his works, the TTP expresses not what God is, but who God is to Spinoza. (Abstract shortened by UMI.)M.A

    Drying-wetting approach for 3D finite element sigma coordinate model for estuaries with large tidal flats

    No full text
    An approach to represent drying and wetting processes in a three-dimensional finite element sigma coordinate model is described. This approach makes use of capillaries in dry areas, which can connect to the nearby wet areas. The time marching of the mass conservation equation is modified by introducing a "size factor" coefficient and a water level diffusion term. Therefore, the fictitious water level of the dry nodes can fluctuate with the adjacent wet nodes. This eliminates the artificial pressure gradient appearing in some drying and wetting approaches in the partially wet (transition) elements. This approach results in a null momentum computation at the dry areas, which can guarantee numerical stability and satisfy the mass and momentum conservation. The approach has been applied in a hypothetical case and a real case in Xiamen Estuary, China, with satisfactory results. (C) 2005 Elsevier Ltd. All rights reserved

    Effects of green roof on the wind field of a low-rise building

    No full text
    7th International Conference on Fluid Mechanics, ICFM 2015, 24-27 May 2015201812 bcrcVersion of RecordPublishe

    Generation of macro-vortices in estuarine compound channels

    No full text
    202307 bcchVersion of RecordRGCPublishe

    Strategic planting for watershed restoration in coastal urban environment – toward carbon sequestration by stormwater improvement

    No full text
    202203 bcfcAccepted ManuscriptRGCOthersInnovation and Technology Commission; Research Institute for Sustainable Urban Development (Hong Kong PolyU)Publishe
    corecore