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In this paper we present the first emitter efficiency results for the thin film 40 percent Er-1.5 percent Ho YAG (Yttrium Aluminum Garnet, Y3Al5O12) and 25 percent Ho YAG selective emitter at 1500 K with a platinum substrate. Spectral emittance and emissive power measurements were made (1.2 less than lambda less than 3.2 microns).
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They bear coesite included in atoll-type garnet from metamafic rocks, identified by petrographic study and Raman microspectroscopy analysis. U-Pb zircon dating of the leucosome of the migmatites and the calc-silicate rock displays, concordant ages of 639 ± 10 Ma and 649.7 ± 5 Ma, respectively, here interpreted as the minimum age of the ...
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mclalsitlay T=Xe) eye bY, A springer rex Planetary Geology Springer Praxis Books Astronomy and Planetary Sciences Series editors Martin A. Barstow Leicester, United ...
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Abstract and Figures. This paper presents a study on alkali activated cement (AAC) mortar produced with waste soda-lime-silica glass. The waste glass was used simultaneously as a precursor and ...
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the method of making multimodal boride cermets includes the steps of mixing multimodal ceramic phase particles and metal phase particles, milling the ceramic and metal phase particles, uniaxially...
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The band located at 1104 cm À1 got broaden as per the presence of amorphous silica phases in these SCBA samples and showcased differences in transmittance intensity as well. ... ... The band...
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US6455998B1 US09/410,478 US41047899A US6455998B1 US 6455998 B1 US6455998 B1 US 6455998B1 US 41047899 A US41047899 A US 41047899A US 6455998 B1 US6455998 B1 US 6455998B1 Authority
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Crossed-polars image of coesite grain (gray) ~1 mm across in eclogite. Small colored inclusion is pyroxene. Polycrystalline rim is quartz. General; Category: Tektosilicate: Chemical formula: SiO 2: Strunz classification: 04.DA.35: Crystal symmetry: Monoclinic, point group 2/m, space group: C2/c:
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With keeping the compression of 5.7 GPa at 100 oC, a Raman band assignable to coesite appeared at 538 cm-1. That is, with the compression and heating, the hydrous amorphous silica can be readily crystallized into quartz, moganite, and coesite. The first-principles calculations revealed that a disiloxane molecule stabilized in a trans ...
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The Sheahan Diamond Literature Reference Compilation; The Sheahan Diamond Literature Reference Compilation is compiled by Patricia Sheahan. who publishes on a monthly basis a list of new scientific articles related to diamonds as well as media coverage and corporate announcementscalled the Sheahan Diamond Literature Service that is distributed as a free pdf to a list of followers.
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Coesite is a form of silicon dioxide Si O 2 that is formed when very high pressure (2-3 gigapascals), and moderately high temperature (700 °C, 1,300 °F), are applied to quartz. Coesite was first synthesized by Loring Coes Jr., a chemist at the Norton Company, in 1953.
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A general term for clay, silt, sand, gravel, or similar unconsolidated detrital material, deposited during comparatively recent geologic time by a stream or other body of running water, (1) as sediment in the bed of the stream or on its flood plain or delta, (2) as a cone or fan at the base of a mountain slope; esp., such a deposit of fine ...
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The lava cone protrudes through the platform cover that seals the late Neoproterozoic junction between the Arabian-Nubian basement to the South and the Cadomian basement exposed in the Taurides to the North. The mafic granulite xenoliths are composed of plagioclase + orthopyroxene + clinopyroxene ± garnet ± spinel ± secondary amphibole.
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Nininger [356, 365-3681 proposed a theory that tektites, and possibly some meteorites, are "chips off the moon," or portions of the moon's surface ejected from lunar meteoritic craters by the impact. Other theories are considered and rejected, including the original Verbeeck's theory of lunar volcanism.
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A method of forming a rope material from a loose feed scrap includes a number of operations to mechanically bind the loose feed scrap. The feed scrap is collected. The feed scrap is twisted and compressed, operations that may be performed simultaneously. This twisted and compressed feed scrap, now in the form of a rope material, is then fed into a melter system.
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Simons Cone Crusher Short Head 1 1 4 - MC Machinery. 14 Short Head Cone Crusher on Test Stand - YouTube 2014 The crusher is checked for leaks around seals and strange noises that might be a sign of trouble ahead.Simons Cone Crusher 4 Ft Standard weights on a simons crusher 4 1 4 bowl Simons 1 Foot Cone Crusher Prakashpublicschool. simons .
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This paper deals with the morphology, fineness and pozzolanic activity of four glass powders: one (GP-fine) from the screening of crushed waste glasses, one (GP-dust) from a dust collector for the...
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Thin film (<100 nm) hydrous metal oxide catalysts are prepared by 1) synthesis of a hydrous metal oxide, 2) deposition of the hydrous metal oxide upon an inert support surface, 3) ion exchange with catalytically active metals, and 4) activating the hydrous metal oxide catalysts.
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Ultimate Guide to Mining in EVE Online - Odealo. Ultimate Guide to Mining in EVE Online. Introduction. Space is full of riches, uncountable amounts of raw resources are floating through the void, just waiting to be gathered.
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The Sheahan Diamond Literature Reference Compilation; The Sheahan Diamond Literature Reference Compilation is compiled by Patricia Sheahan. who publishes on a monthly basis a list of new scientific articles related to diamonds as well as media coverage and corporate announcementscalled the Sheahan Diamond Literature Service that is distributed as a free pdf to a list of followers.
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samples are takes at five-minute intervals from a selected sampling location. These samples are blended and split using a riffle splitter or by cone-and-quartering to a 500 g sample. The remaining 500 g sample is crushed to a 5 mm particle size, blended, and then further split to the desired sample size to produce two specimens.
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Mineral processing : foundations of theory and practice of minerallurgy
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The Sheahan Diamond Literature Reference Compilation; The Sheahan Diamond Literature Reference Compilation is compiled by Patricia Sheahan who publishes on a monthly basis a list
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A composite material suitable for labeling a substrate. The composite material, which is preferably a ceramic composite, comprises a fired ceramic body and a layer thereon. The fired ceramic body includes a base layer that comprising a glassy phase and a refractory phase, the glassy phase being capable of wetting a substrate at an application temperature.
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Mineral Processing Foundations of theory and practice of minerallurgy 1st English edition JAN DRZYMALA, C. Eng., Ph.D., D.Sc. Member of the Polish Mineral Processing Society
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These studies and those of others [5,70,135,137,139,140] show that the blend of SCBA with Portland cement causes adverse effect on the slump, slump flow, V-funnel flow time, marsh cone test, box ...
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Process for recycle and reuse of soil, sludge, sand, or rock containing: (a) at least about 16 wt % calcium oxide, about 5 wt % silica, about 1 wt % alumina, about 0.5 wt % Fe 2 O 3, or about 0.76 wt % magnesia; and (b) at least about 5 ppm arsenic, about 100 ppm barium, about 1 ppm cadmium, about 5 ppm chromium, about 5 ppm lead, about 0.2 ppm mercury, about 1 ppm selenium, or about 5 ppm ...
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Impact of changing temperatures of curing (27, 60 and 90 °C) and types of alkaline activator solution on the properties of geopolymer mortars (GPMs) prepared by combining agricultural and industrial wastes including granulated-blast-furnace-slag (GBFS), fly-ash (FA), and palm-oil-fuel-ash (POFA) was examined.
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