Data from: Investigation for the influence mechanism of rock damage on rock fragmentation and cutting performance by the discrete element method

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DOI：

doi:10.5061/dryad.46pv990

摘要：

fragmentation and cutting performance was studied using PFC2D. In PFC2D software, it is feasible to get rock models with different damage factors by reducing

Data from: Numerical simulation of induced cutting in deep coal

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关键词：

rock cutting;Mining method;Discrete element method;Induced cutting;cutting tool

DOI：

doi:10.5061/dryad.33626h7

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Deep coal cutting is a hot research topic at present. In this paper, the cutting technology of three-drum shearer was proposed based on previous

Data from: Unraveling species concepts for the Helicoprion tooth whorl

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Helicoprion davisii;Permian;Helicoprion ergassaminon;dentition;Morphometry;Euchondrocephali;Chondrichthyes;Helicoprion bessonowi

DOI：

doi:10.5061/dryad.q64g3

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with tall cutting surfaces and is distinguished from H. bessonowi, whi ch has narrow, closely-spaced teeth with short cutting surfaces. H. ergassaminon

Data from: Anthropogenic harvesting pressure and changes in life history: insights from a rocky intertidal limpet

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Human impact;Conservation Biology;Life history;Demography;Lottia gigantea;Phenotypic Plasticity;Life history: theory;gastropods;Holocene;Marine

DOI：

doi:10.5061/dryad.4r1g2

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. Such size-selective harvesting is particularly worrisome for sequentially hermaphroditic species where the larger size classes are composed prima

Archaeological Excavation at St. Mary's Gate \/ Warser Gate, Nottingham

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Historic England;;University Of Birmingham

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CHARCOAL CERAMIC EXCAVATION EVALUATION WATCHING BRIEF CLAY PIPE (SMOKING) COIN PLANT REMAINS NAIL SHERD

DOI：

doi:10.5284/1045782

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and tile.The medieval features were mostly located within the western and central-southern partsof the site. These comprised of a complex of inter-cutting

Applications of next generation sequencing in sessile marine invertabrates

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Molecular Biology next generation sequencing marine Invertebrates Pacific oyster Crassostrea gigas barnacle Pollicipes polymerus viral resistance circadian and circatidal clocks

DOI：

doi:10.25549/usctheses-c89-54761

摘要：

polyemerus, which is a rocky intertidal arthropod. This is an extreme habitat with constantly changing environment due to tides. This species is also an imp

Great Plains Population and Environment Data: Biogeochemical Modeling Data, 1860-2003 [United States];;Version 1

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DOI：

doi:10.3886/icpsr31681.v1

摘要：

, Nebraska -- FIPS Code 31139 DS211: Red Willow County, Nebraska -- FIPS Code 31145 DS212: Rock County, Nebraska -- FIPS Code 31149 DS213: Scotts Bluff