21 research outputs found

    Integrated Multi-Parameter Exploration Footprints of the Canadian Malartic Disseminated Au, McArthur River-Millennium Unconformity U, and Highland Valley Porphyry Cu Deposits: Preliminary Results from the NSERC-CMIC Mineral Exploration Footprints Research Network

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    Mineral exploration in Canada is increasingly focused on concealed and deeply buried targets, requiring more effective tools to detect large-scale ore-forming systems and to vector from their most distal margins to their high grade cores. A new generation of ore system models is required to achieve this. The Mineral Exploration Footprints Research Network is a consortium of 70 faculty, research associates, and students from 20 Canadian universities working with 30 mining, mineral exploration, and mining service providers to develop new approaches to ore system modelling based on more effective integration and visualization of multi-parameter geological-structural-mineralogical-lithogeochemical-petrophysical-geophysical exploration data. The Network is developing the next generation ore system models and exploration strategies at three sites based on integrated data visualization using self-consistent 3D Common Earth Models and geostatistical/machine learning technologies. Thus far over 60 footprint components and vectors have been identified at the Canadian Malartic stockwork-disseminated Au deposit, 20–30 at the McArthur-Millennium unconformity U deposits, and over 20 in the Highland Valley porphyry Cu system. For the first time, these are being assembled into comprehensive models that will serve as landmark case studies for data integration and analysis in the today’s challenging exploration environment

    Geometry of Logarithmic Strain Measures in Solid Mechanics

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    Mechanical behavior of Ti6Al4V lattice structures; numerical and experimental analysis

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    This study deals with the mechanical behavior of lattice structures produced by the Laser Powder Bed Fusion process experimentally and numerically for four different topologies of Body-Centered Cubic, Body-Centered Cubic with struts along Z-direction, Face-Centered Cubic and Face-Centered Cubic with struts along Z-direction. To study the effect of cross-section geometry of the struts on the mechanical behavior of the structure, three circular, rectangular and I-shaped cross-sections with the same surface area were manufactured and tested. Their simulations were done using Abaqus software and the simulation results were in great agreement with the test results. Numerical and experimental investigations showed that samples with the I-shaped cross-section of the strut exhibit more stiffness and strength

    Analysis and optimization of strut-based lattice structures by simplified finite element method

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    In this paper, the mechanical behavior of the lattice structures composed of unit cells such as BCC, BCCZ, FCC, FCCZ, and cubic arrangements with the struts in the forms of circle, rectangle, square, triangle, I-shape, and hollow-square longitudinal sections is examined. For this purpose, the elastic behavior of a lattice cubic with dimensions of 2 (cm) 7 2 (cm) 7 2 (cm) consisting of 125 unit cells and more than 1000 beam elements is investigated under the compressive loading using the finite element method. In this analysis, the mechanical properties such as stiffness, absorbed mechanical energy, and stiffness-to-weight ratio are determined for these cellular structures, and the orientations of their struts are optimized so that the structure\u27s stiffness–weight ratio is increased. It was observed that the cellular structures with an I-shaped cross-section have the highest stiffness-to-weight ratio among the studied cross-sections

    Formulation of muon range 0-100 TeV and transmission through lead

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    7-12Muons can penetrate long distances into matter and are less susceptible to radiate effects as compared to electrons. Over a broad energy range, the dominant energy loss is due to ionization mechanism. This makes the shielding of muons and the knowledge of their range considerably important at high-energy accelerators and in other high energy applications. In the present paper, the muon range R(E) from 0-1 GeV in lead is obtained by using muon range data which were generated by SRIM 2012.03 code. For muon energy versus traveled distance E(X), an analytical formula is extracted by a fitting procedure by the aid of Origin 8.0 and Find Graph softwares. For extracting the values of R(E) in the range 0-100TeV and E(X) for less than 100 TeV using the current method faced a limitation. This limitation is due to maximum SRIM energy input card which is 1GeV, so the SRIM range data are used for less than 1 GeV and the GROOM range data for above 1 GeV. In the present paper, the muon energy is calculated using this technique at energy less than 100 TeV for arbitrary traveled distance
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