Results 81 to 90 of about 285,312 (215)

Talc‐Tempered Pottery From Bala Hissar, Kabul: An Analytical Study

open access: yesArchaeometry, EarlyView.
ABSTRACT Potsherds of cooking ware excavated at Bala Hissar archaeological site in Kabul were studied using X‐ray fluorescence (XRF), scanning electron microscope‐energy dispersive X‐ray spectrometry (SEM‐EDS), Raman spectroscopy, X‐ray powder diffraction (XRPD), thermogravimetric analysis (TGA) and optical microscopy.
Parviz Holakooei   +4 more
wiley   +1 more source

Absolute Absorption and Dispersion in a Thermal Rb Vapour at High Densities and High Magnetic Fields. [PDF]

open access: yes, 2013
This thesis presents a comparative study of the measured and calculated absolute absorption and dispersion properties of the Rb D lines through a dense thermal vapour in the absence and presence of an applied magnetic field.
WELLER, LEE
core  

Technologies of Transition: Pottery Production and Specialization in Early Rome and Its Neighbors. Neutron Activation Analysis of Regional Assemblages and a Mineralogical‐Petrographic Study of Impasto Chiaro‐Sabbioso

open access: yesArchaeometry, EarlyView.
ABSTRACT The following paper investigates ceramic production and signs of specialization in Rome and the wider region during the early first millennium bce, through an archaeometric approach using Instrumental Neutron Activation Analysis (NAA), and complementary techniques.
Mattia D'Acri   +4 more
wiley   +1 more source

Feshbach spectroscopy of an ultracold Rb-Cs mixture [PDF]

open access: yes, 2012
This thesis reports the observation of interspecies Feshbach resonances in an ultracold mixture of Rb and Cs atoms. A versatile combined magnetic and optical potential has been designed and constructed which is capable of bringing both $^{87}\rm{Rb}$ and
Jenkin, Daniel Lester   +2 more
core  

The Making of Forum Ware: A High‐Resolution Archaeometric Study of Early Medieval Glazed Pottery From the Templum Pacis (Imperial Forum, Rome)

open access: yesArchaeometry, EarlyView.
ABSTRACT The object of this study consists of an archaeometric investigation of Early medieval Forum Ware glazed ceramics found in the central archaeological area of Rome, a significant chronological and economic marker for 8th–11th centuries. Instrumental analysis included digital microscopy, ESEM‐EDS imaging, EDS spectral analysis, EMPA quantitative ...
Martina Bernardi   +2 more
wiley   +1 more source

Crossing Ceramic Decoration Boundaries: Compositional and Morphological Analyses of the Mortuary Assemblage From Maridíaz (Nariño, Colombia)

open access: yesArchaeometry, EarlyView.
ABSTRACT This paper examines the interaction of two ware traditions in the Maridíaz mortuary assemblage (Pasto, Nariño, Colombia), a rare, well‐documented cemetery context in which Piartal, Tuza, and hybrid vessels co‐occur. Using portable X‐ray fluorescence (n = 39) and 3D geometric morphometrics (n = 25), we find shared ceramic compositions ...
Catherine Klesner   +4 more
wiley   +1 more source

Transición de fase de baja temperatura en cerámicas de PZT ricas en circonio

open access: yesBoletín de la Sociedad Española de Cerámica y Vidrio, 1999
Measurements of thermal expansion and complex YoungÕs modulus in ferroelectric ceramics of zirconium-rich compositions and formula PbZr1-xTixO3 , x = 15.0-5.0%, and Pb1-y/2 (Zr1-xTix )1-yNbyO3 with x = 3.5-3.0%, y = 2.6% as a function of the temperature ...
Jiménez, B., Vicente, J. M.
doaj  

Ceramic Raw Materials and Technological Choices in Iron Age Tyre (Lebanon): A Multiproxy, Fabric‐Based Approach

open access: yesArchaeometry, EarlyView.
ABSTRACT This study presents a systematically integrated, multiproxy characterisation of Iron Age ceramics from Tyre (Lebanon). Ninety‐nine ceramic samples from stratified Iron Age contexts on Tyre's Acropolis, together with a small Late Bronze Age and raw‐clay reference set, were analysed using petrography, microfossil identification, X‐ray ...
Francisco J. Núñez Calvo   +5 more
wiley   +1 more source

Effects of organic solvents on the depth‐of‐cure determination of conventional and bulk‐fill resin composites

open access: yesEuropean Journal of Oral Sciences, EarlyView.
Abstract This study investigated the influence of organic solvents on the depth of cure (DOC) of resin composites. Two conventional (Filtek Universal [FU] and Beautifil II [BE]) and two bulk‐fill (Filtek One Bulk Fill [FO] and Beautifil‐Bulk [BB]) composites were evaluated.
Beatriz de Cássia Romano   +4 more
wiley   +1 more source

Bond strength enhancement for additively manufactured zirconia: Micro‐retentive design approach

open access: yesJournal of Prosthodontics, EarlyView.
Abstract Purpose To investigate the effect of digitally designed micro‐retention features on the bond strength of additively manufactured (AM) zirconia copings. Materials and Methods Sixty titanium base abutments (NobelParallel, NobelBiocare), pretreated with 50 µm alumina particles were divided into four groups (n = 15 per group); one group with ...
Rama B. Al‐Rashdan   +5 more
wiley   +1 more source

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