Results 111 to 120 of about 21,059 (277)

Effects of gastric acid on surface roughness, microhardness, fracture strength, and color change of dental ceramics: A systematic review of in vitro studies

open access: yesJournal of Prosthodontics, EarlyView.
Abstract Purpose This systematic review evaluated the effects of simulated gastric acid (SGA) on surface and mechanical properties of dental ceramics to answer the research question: Does immersion in SGA alter the surface roughness, microhardness, fracture strength, and color of dental ceramics?
Geany Ferreira Rodrigues   +8 more
wiley   +1 more source

Study of attachment methods for advanced spacecraft thermal-control materials, phase 1 Summary report [PDF]

open access: yes
Attachment methods for thermal control composite material system consisting of second-surface mirrors and multiple layer ...
Kordsmeier, N. H., Jr., Renalds, O. B.
core   +1 more source

Archaeological Investigations at the Walnut Branch (41CE47), Ross I (41CE485), and Ross II (41CE486) Sites, Cherokee County, Texas [PDF]

open access: yes, 2017
The Walnut Branch site (41CE47) was recorded by George Kegley and Dan Witter in 1969 as part of an archaeological survey funded by the Texas Building Commission (now the Texas Historical Commission) in Cherokee County and adjacent counties.
Perttula, Timothy K., Stingley, Kevin
core   +1 more source

The effect of coffee thermocycling and color correction serum on the colorimetric properties and hardness of CAD‐CAM restorative materials

open access: yesJournal of Prosthodontics, EarlyView.
Abstract Purpose To compare the stainability, translucency, opalescence, whiteness, gloss, and hardness of 4 computer‐aided design and computer‐aided manufacturing (CAD‐CAM) restorative materials after simulated coffee drinking and color correction. Materials and Methods Four CAD‐CAM blocks were investigated (n = 40): resin nanoceramic (Cerasmart, CS),
Hanan Al‐Johani
wiley   +1 more source

The Redox Properties of Polyphenols and Their Role in ROS Generation for Biomedical Applications

open access: yesAngewandte Chemie, Volume 138, Issue 3, 16 January 2026.
The dual redox nature of polyphenols enables antioxidant activity and controlled reactive oxygen species (ROS) generation. This review details the biomedical applications of polyphenols in materials such as nanoparticles, coatings, and hydrogels for antimicrobial, tissue regeneration, and cancer therapies.
Jose Bolaños‐Cardet   +7 more
wiley   +2 more sources

Síntesis de pigmentos cerámicos mediante radiación microondas

open access: yesBoletín de la Sociedad Española de Cerámica y Vidrio, 2007
Effect of microwave radiation on the development of ceramic pigments for tiles has been studied. Four compositions corresponding to different ceramic pigments (chrome-tin pink, cobalt-ferrite black, pink coral of iron in zircon and pink of chromium-tin ...
Calbo, J.   +5 more
doaj  

Caddo Ceramic Vessels from the Womack Site (41LR1), 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., Walters, Mark
core   +1 more source

Sustainable Strategies for the Recycling of Sodium‐Ion Battery Cathodes Using Organic Acids

open access: yesBattery Energy, Volume 5, Issue 2, March 2026.
This study introduces a novel sustainable hydrometallurgical process for recycling SIB cathodes. Optimized citric acid leaching exceeds the EU Ni recovery target. Subsequent oxalic acid precipitation selectively retrieves Ni and Mn, forming a Mn–Ni oxalate precursor for SIB cathode regeneration.
Judith Sabata Mas   +5 more
wiley   +1 more source

An Archaeometric Study of Twelve Porcelain Chinese Sherds Found at the Santana Convent in Lisbon—16th to 18th Centuries

open access: yesHeritage
Twelve sherds of blue-and-white Chinese porcelains recovered from archaeological excavations in the Santana Convent (Ming and Qing Dynasties) in Lisbon were studied using several non-invasive spectroscopies, namely micro-Raman, X-ray Fluorescence (XRF ...
Luís F. Vieira Ferreira   +4 more
doaj   +1 more source

The Millsey Williamson (41RK3), Bead Burial, and L. N. Morwell Farm Sites on Martin Creek: Historic Caddo Settlements along Trammels Trace, Rusk County, Texas [PDF]

open access: yes, 2014
There are collections of ceramic vessels and other artifacts from the Millsey Williamson (41RK3), Bead Burial, and L. N. Morwell sites in the Buddy Jones collection at the Gregg County Historical Museum.
Nelson, Bo, Perttula, Timothy K.
core   +1 more source

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