Results 161 to 170 of about 381,696 (284)

Temperature Programmed Desorption of Water Ice from the Surface of Amorphous Carbon and Silicate Grains as Related to Planet-forming Disks

, 2018
Understanding the history and evolution of small bodies, such as dust grains and comets, in planet-forming disks is very important to reveal the architectural laws responsible for the creation of planetary systems.
Jäger, C., Potapov, A., Henning, T.
core  

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

Journal 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, Isaac Augusto Dantas Nogueira, Nicole Escórcio de Meneses, Ana Letícia Daniel Fontenele, Francisbênia Alves Silvestre, Ana Carolina Lima Moreira, Lívia Maria Sales Pinto Fiamengui, Karina Matthes de Freitas Pontes, Raniel Fernandes Peixoto   +8 more
wiley   +1 more source

Hydrogen Isotopic Fractionation in the Solar Nebula and Implications for Water in Earth and Inner Solar System Bodies. [PDF]

ACS Earth Space Chem
Asaduzzaman A.
europepmc   +1 more source

The effects of material thicknesses and substrates on the translucency and color masking ability of additively manufactured definitive crown materials

Journal of Prosthodontics, EarlyView.
Abstract Purpose To investigate the translucency of the new 3D‐printable materials concerning thickness and the color masking ability of each material against different substrate colors. Materials and Methods Ninety square‐shaped specimens (12.0 mm × 12.0 mm) of two new 3D‐printable materials: ceramic‐infiltrated hybrid resin composite (VS) and light ...
Ting Wang, Yun‐Ju Wang, Chao‐Chieh Yang, John A. Levon, Tien‐Min G. Chu, Wei‐Shao Lin   +5 more
wiley   +1 more source

Stardust as nucleation seeds for the earliest solids in the Solar System. [PDF]

Sci Adv
Marquez RTC, Charlier BLA, Tissot FLH.
europepmc   +1 more source

Fine-Grained Sheet Silicate Rocks. [PDF]

, 1977
openaire   +2 more sources

DUST IN ACTIVE GALACTIC NUCLEI: ANOMALOUS SILICATE TO OPTICAL EXTINCTION RATIOS?

, 2014
Dust plays a central role in the unification theory of active galactic nuclei (AGNs). However, little is known about the nature (e.g., size, composition) of the dust that forms a torus around the AGN. In this Letter, we report a systematic exploration of
Lyu, Jianwei, Hao, Lei, Li, Aigen
core  

Hydraulic fast‐setting calcium silicate cement for crown cementation

Journal of Prosthodontics, EarlyView.
Abstract Purpose This study evaluated film thickness, diametral tensile strength (DTS), and crown retentive strength of hydraulic fast‐set calcium silicate cement (fast‐set CSC) compared to conventional luting cements. Materials and Methods Fast‐set CSC was compared to zinc phosphate cement and glass ionomer cement.
Atefeh Nemati Karimooy, Bahram Ranjkesh, Dirk Leonhardt, Henrik Løvschall   +3 more
wiley   +1 more source

Fluorite and rare-metals mineralization in greisenized granite of Um Naggat area, Egypt constrained by physical separation and beneficiation assessment. [PDF]

Sci Rep
Fawzy MM, Diab M, Abdel Gawad AE.
europepmc   +1 more source

Low-temperature Optical Properties of Interstellar and Circumstellar Icy Silicate Grain Analogs in the Mid-infrared Spectral Region

, 2018
Two different silicate/water ice mixtures representing laboratory analogs of interstellar and circumstellar icy grains were produced in the laboratory.
Mutschke, H., Seeber, P., Jäger, C., Potapov, A., Henning, T.   +4 more
core