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Showing 1 to 20 of 57 for “"pebbles"”.
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Fine particle flotation for Florida dolomitic phosphate pebbles
A Florida dolomitic phosphate pebble sample was processed using a 1.2 liter stirrer-tank flotation cell and 2-in ID packed flotation column aiming at achieving a phosphate concentrate containing more than 30% P2O 5 and less than 1.0% MgO contents at high P2O5 recovery.;The characteristics of fatty …
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Transitive Closure Logic and Multihead Automata with Nested Pebbles
… is a two-way multihead automaton with nested pebbles. We look at the expressive power of multihead automata and the k-ary fragments of transitive closure logics in the class of finite structures called word models. We show that deterministic twoway k-head automata with nested pebbles have the …
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Pebbles in the glacial till of eastern North Dakota
… of the various factors affecting the pebbles are evalnated.</p>
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Pebbles and Urns: A Tangible, Presence-Based Service Delivery Framework
… be built.<br /><br />The result of this work is Pebbles and Urns (P&U), a casually accessible system designed to<br />deliver information to a person that is pertinent and beneficial to them with respect to their<br />current activity, location and other contexts. P&U is a proximity-based …
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They throw pebbles in our garden: Women and consumerism in the Soviet Union from Lenin to Khrushchev
<p>My work provides a background to gender equality in the Soviet Union from its inception, the nascent Lenin era, the autocratic Stalin era and it culminates with a focus on the Khrushchev regime. My work demonstrates that although the Khrushchev era sought to ameliorate women's double burden of …
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Sediment dynamics on Wemyss beach, South Fife
… Fife consist of an unusual mix of heterogeneous pebbles, sand and coal waste, and consequently provide a complex environment in which to examine sediment transport. The use of tracers revealed that low density coal pebbles were 'rejected' from the bedload layer of ironstone and sandstone pebbles, …
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Black male partial (in)visibility syndrome: a qualitative study of the narratives of Black masculine identities at the Pebbles School
… Black males who attend or graduated from the Pebbles School—an urban all-male public combined middle and high school—constructed, perceived, and negotiated their identities as males. Examining the relationship between masculinity and education, my study is situated at the intersection of …
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Generalizations and Variations on Graph Pebbling
… involves determining the minimum number of pebbles needed so that regardless of the initial arrangement of pebbles on a graph, a pebble can be moved to any vertex using specified ``pebbling moves.'' This minimum number of pebbles is the pebbling number of a graph. We begin by making a brief …
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MCNP4B modeling of pebble-bed reactors
… composition and the need to divert -157,000 pebbles to accumulate sufficient 239Pu for a nuclear weapon. The isotopics of first-pass fuel pebbles are more favourable, but even more pebbles (-258,000) would be needed. However, a supercell MOCUP model was used to demonstrate that -20,000 …
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Red-blue and standard pebble games : complexity and applications in the sequential and parallel models
… acyclic graphs involving placing and moving pebbles on nodes of the graph according to a certain set of rules. The standard pebble game (also known as the black pebble game) is the first of such games played on DAGs. The game itself involves three simple rules: a pebble can be placed on any …
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Microstructural and crystallographic fabric analysis of stretched-pebble conglomerates in central Vermont
… Recrystallization textures within quartz-rich pebbles suggest dynamic recrystallization via subgrain rotation and grain boundary migration. Dynamically recrystallized quartz grains have a grain shape preferred orientation, which is parallel to a series of intracrystalline strain features …
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Parent-Offspring Conflict and the Allocation of Parental Investment in the Feral Pigeon (Columba Livia) (Nestling Growth, Concorde Fallacy, Food Limitation)
… by giving a group of birds food mixed with pebbles which increased the adult birds' foraging time. Fathers did not feed offspring with playbacks more often than controls in the group with increased foraging costs. In a second group without pebbles, fathers fed offspring significantly more …
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Grain size distributions of various materials in an abrasion mill
… plagioclase, and hornblende abraded off of pebbles appear to be lognormal by number percentage. There is considerable question as to the accuracy of the method of counting grains. The size distributions of quartz and orthoclase crushed or abraded to sized less than 0.5 mm appears to be …
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On the Pebbling Numbers of Graphs
… A pebbling step is produced by taking two pebbles from a vertex, moving one of them to an adjacent vertex, and throwing out the other pebble. The pebbling number of a graph G, denoted ƒ(G ), is the smallest integer t such that for any distribution of t pebbles on the vertices of G, one …
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Analysis of the proliferation resistance of the modular pebble bed high temperature gas reactor
… increased risk of proliferation because the fuel pebbles can be diverted while the plant is operating. In order to show that the MPBR dose not pose a proliferation risk the fuel content was determined for different burnups up to 94 MWD/kg. This data shows that the fuel is very poor nuclear weapon …
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The History Curriculum in the Philippine Secondary Schools
… names and dates, genealogies and summaries, hard pebbles instead of bread. It is unfair to children thus to prejudice them against a subject which thrills with human interest and touches human life at every turn, it is unfair to history to present it thus."|What are the reasons for such a state of …
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Dinoflagellate biostratigraphy of the Cretaceous-Tertiary boundary, Round Bay, Maryland
… used since there is little field evidence (a few pebbles, some lignite, and evidence of boring) indicating any extensive period of erosion at the boundary.
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The Carboniferous Courceyan-Chadian) Sedimentary Facies Mosaic of the Keel -Ardagh Area of County Longford, Eire
… <br/><br/>Uplift in western Ireland made quartz pebbles and higher stream velocities to transport them available. These pebbles formed the Quartz Pebble Conglomerate deposited in pebbly braided streams.<br/><br/>Lowering of the source area by erosion resulted in reduced sediment grain size. Sandy …
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Structural geology of carboniferous rocks near Marble Falls, Burnet County, Texas
… and conglomerates containing fractured pebbles with sandstone dikes. Folded sandstone beds within the area originated during the time that normal faulting occurred. One period of tensional deformation, directly related to the Llano uplift, is responsible for the major structural features …
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