نتایج جستجو برای: rock products plant

تعداد نتایج: 704196  

Journal: :Nature communications 2015
Martha-Cary Eppes Andrew Willis Jamie Molaro Stephen Abernathy Beibei Zhou

The origins of fractures in Martian boulders are unknown. Here, using Mars Exploration Rover 3D data products, we obtain orientation measurements for 1,857 cracks visible in 1,573 rocks along the Spirit traverse and find that Mars rock cracks are oriented in statistically preferred directions similar to those compiled herein for Earth rock cracks found in mid-latitude deserts. We suggest that M...

2018
Xin Zhang Lei Peng Zhao-peng Ni Tian-xiao Ni Yi-liang Huang Yang Zhou

Experimental research was conducted to study the fire resistance of steel tubular columns used in prefabricated and modular construction. In order to achieve high-efficient prefabrication and fast on-site installation, membrane protections using board products and thermal insulation blankets are adopted as the favorable protection method. Three protected tubular columns were tested in a full-sc...

Journal: :Journal of the Fuel Society of Japan 1963

Journal: :Environmental Science and Pollution Research 2018

Journal: :Journal of Chromatography & Separation Techniques 2012

Journal: :Computer Vision and Image Understanding 2008
Matthew J. Thurley Kim C. Ng

Once segmentation of 3D surface data of a rock pile has been performed, the next task is to determine the visibility of the surface rocks. A region boundary-following algorithm that accommodates irregularly spaced 3D coordinate data is presented for determining this visibility. We examine 3D surface segmentations of laboratory rock piles and determine which regions in the segmentation correspon...

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