Results 61 to 70 of about 231,683 (315)

The Historic Caddo Component at the Roseborough Lake Site (41BW5) on the Red River in Bowie County, Texas [PDF]

open access: yes, 2017
The Roseborough Lake site (41BW5) is on an old meander of the Red River “that was cut off in 1872 and named Roseborough Lake. It lies a few miles west of other important Late Caddo and Historic Caddo period sites, and a few miles west of Texarkana in ...
Perttula, Timothy K.
core   +1 more source

Enhancing Strength and Electrical Conductivity in Al–Zr–Sc Conductor Alloys Through Sn and Sr Microalloying and Two‐Step Aging Treatment

open access: yesAdvanced Engineering Materials, EarlyView.
Trace additions of Sn and Sr combined with a two‐step aging treatment are shown to enhance the microstructure and performance of Al–Zr–Sc conductor alloys. Strength and electrical conductivity increase concurrently through accelerated precipitation of fine Al3(Sc, Zr) precipitates and improved dislocation resistance, offering a cost‐effective pathway ...
Quan Shao   +3 more
wiley   +1 more source

Caracterização e incorporação de cinza de resíduo sólido urbano em cerâmica vermelha

open access: yesCerâmica
Resumo Este trabalho tem por objetivo avaliar o efeito da incorporação de cinza de resíduo sólido urbano nas propriedades físicas e mecânicas da cerâmica vermelha. Foram preparados corpos de prova por prensagem uniaxial a 20 MPa para queima a 750 °C, com
N. C. Coutinho, C. M. F. Vieira
doaj   +1 more source

Caracterização de resíduo (lodo) proveniente de estação de tratamento de águas visando sua utilização em cerâmica vermelha Characterization of waterworks waste (sludge) aiming its use in red ceramic

open access: yesCerâmica, 2004
O presente trabalho teve como objetivo avaliar o resíduo (lodo) gerado por Estação de Tratamento de Águas (ETA) da região de Campos dos Goytacazes-RJ.
E. M. S. Oliveira   +2 more
doaj   +1 more source

Documentation of Additional Vessels from the Johns Site (41CP12), Camp County, Texas [PDF]

open access: yes, 2010
The Johns site (41CP12) is a Titus phase cemetery in the Prairie Creek valley in the Big Cypress Creek stream basin of the Northeast Texas Pineywoods. The Caddo artifacts from the site are from the Robert L. Turner, Jr. and Tommy John collections.
Nelson, Bo   +2 more
core   +1 more source

Application of Raman and Photoluminescence Spectroscopy to MgO‐C Refractories

open access: yesAdvanced Engineering Materials, EarlyView.
Visible to near infrared luminescence of MgO is studied on MgO‐C bricks and nominally pure MgO powder, with focus on two similar sharp high‐intensity signals, at 699 and 871 nm, each surrounded by symmetrical sidebands. The nature of these sidebands is investigated by temperature‐dependent spectroscopic measurements, confirming phonon involvement by ...
Julia Richter   +5 more
wiley   +1 more source

Resíduo de quartzito - matéria-prima alternativa para uso em massas de cerâmica estrutural

open access: yesCerâmica
Resumo A geração de resíduos é cada vez maior e o destino adequado desses tornou-se crucial para a preservação do meio ambiente. Portanto, a utilização de alguns resíduos sem massas utilizadas nas indústrias da cerâmica tradicional, além de ser uma ...
M. E. A. Carreiro   +6 more
doaj   +1 more source

Durabilidade de peças cerâmicas vermelhas com adição de rejeito de rocha ornamental isenta de granalha Durability of red ceramic samples with addition of ornamental rock waste free of steel particles

open access: yesCerâmica, 2012
Para avaliação da degradação acelerada em laboratório sofrida pelos corpos de prova de cerâmica vermelha com adição de rejeito de rocha ornamental isento de granalha, foi utilizado um equipamento que lixivia com água quente e fria em tempos controlados ...
D. V. Rodrigues   +4 more
doaj   +1 more source

The Womack Site (41LR1), an Ancestral Caddo Settlement on the Red River in Lamar County, Texas [PDF]

open access: yes, 2015
The Womack site (41LR1) is an ancestral Caddo settlement situated on an alluvial terrace in a horseshoe bend of the Red River in north central Lamar County in East Texas.
Perttula, Timothy K.
core   +1 more source

Khirbet al-Batrawy ceramics. A systematic mineralogical and petrographic study for investigating the material culture [PDF]

open access: yes, 2017
The present paper reports the results of a mineralogical and petrographic study focused on the archaeometric characterization of Early Bronze Age pottery from the archaeological site of Khirbet al-Batrawy (Jordan), dated between 3000 and 2000 BC. Optical
Medeghini, Laura, Nigro, Lorenzo
core   +1 more source

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