Results 31 to 40 of about 331,986 (354)

Effect of a multi-layer infection control barrier on the micro-hardness of a composite resin

Journal of Applied Oral Science, 2012
OBJECTIVE: The aim of this study was to evaluate the effect of multiple layers of an infection control barrier on the micro-hardness of a composite resin. MATERIAL AND METHODS: One, two, four, and eight layers of an infection control barrier were used to
In-Nam Hwang, Sung-Ok Hong, Bin-Na Lee, Yun-Chan Hwang, Won-Mann Oh, Hoon-Sang Chang   +5 more
doaj   +1 more source

Structural Characterization of Ion Nitrided 316L Austenitic Stainless Steel: Influence of Treatment Temperature and Time

Metals, 2022
The ion nitriding behavior of AISI 316L austenite stainless steel was investigated at different nitriding times (2 h, 4 h, and 9 h) and temperatures (450 °C, 500 °C, and 550 °C). The structural characterization has been assessed by several considerations
Ozkan Gokcekaya, Celaletdin Ergun, Turgut Gulmez, Takayoshi Nakano, Safak Yilmaz   +4 more
doaj   +1 more source

Hard spheres on the gyroid surface [PDF]

Interface Focus, 2012
We find that 48/64 hard spheres per unit cell on the gyroid minimal surface are entropically self-organized. Striking evidence is obtained in terms of the acceptance ratio of Monte Carlo moves and order parameters. The regular tessellations of the spheres can be viewed as hyperbolic tilings on the Poincaré disc with a negative Gaussian ...
Tomonari, Dotera, Masakiyo, Kimoto, Junichi, Matsuzawa   +2 more
openaire   +2 more sources

Fracture toughness of a zirconia engineering ceramic and the effects thereon of surface processing with fibre laser radiation [PDF]

, 2010
Vickers hardness indentation tests were employed to investigate the near-surface changes in the hardness of a fibre laser-treated and an as-received ZrO2 engineering ceramic.
Lawrence, Jonathan, Shukla, Pratik, Wu, H.   +2 more
core   +3 more sources

Studying the Effect of Using Ultrasound Vibration on the Reproduction of Detail and Surface Hardness of Dental Stone Models

Nano Biomedicine and Engineering, 2022
BackgroundThe accuracy of surface production details in the dental models determines the success of the dental prosthesis in clinical application.AimThis in vitro study aims to compare between dental stone models produced using two types of techniques ...
Ali M. Aljafery, Mohammed Alkafagy, Zena J. Wally, Athraa Mohammed Dheyaa, Raja'a M. Almusawi, Julfikar Haider   +5 more
doaj   +1 more source

Investigation of the surface roughness and hardness of different denture teeth materials: An In vitro study

Journal of Pharmacy and Bioallied Sciences
Background: Surface roughness and hardness are key factors that influence the clinical performance and durability of denture teeth. Understanding variations in these properties among different denture teeth materials can assist in selecting the most ...
Kanav Garg, Impreet Kaur, Akshaysinh P Vala, C Deepashree, Vishnuja V R. Nair, Nivya John   +5 more
doaj   +1 more source

Development of nickel phosphorus coatings containing micro particles of talc phyllosilicates [PDF]

, 2013
The present work aims to characterized nickel phosphorus coatings co-deposited with talc particles on steel. The NiP-talc composite deposits were developed to serve as hard coatings with a lubricating effect at 600 C.
Alexis, Joël, Bonino, Jean-Pierre, Etcheverry, Bernard, Gaussens, Clélia   +3 more
core   +3 more sources

The surface hardness of tablets

Journal of Pharmacy and Pharmacology, 1970
AbstractA pneumatic micro-indentation apparatus has been used to determine the hardness of tablets of aspirin at various points on their diameter. All the tablets were 13 mm diameter; the compaction pressure and the particle size of the initial material were varied.
K, Ridgway, M E, Aulton, P H, Rosser
openaire   +2 more sources

Impact of Electrostatic Forces in Contact Mode Scanning Force Microscopy

, 2010
In this $\ll$ contribution we address the question to what extent surface charges affect contact-mode scanning force microscopy measurements. % We therefore designed samples where we could generate localized electric field distributions near the surface ...
D. Sarid, E. Meyer, E. Soergel, F. Johann, T. Jungk, Á. Hoffmann   +5 more
core   +1 more source

dUTPase is essential in zebrafish development and possesses several single‐nucleotide variants with pronounced structural and functional consequences

FEBS Open Bio, EarlyView.
dUTPases are involved in balancing the appropriate nucleotide pools. We showed that dUTPase is essential for normal development in zebrafish. The different zebrafish genomes contain several single‐nucleotide variations (SNPs) of the dut gene. One of the dUTPase variants displayed drastically lower protein stability and catalytic efficiency as compared ...
Viktória Perey‐Simon, Angéla Békesi, Latifa Kazzazy, Jázmin Mihály, Máté Varga, Beáta G. Vértessy, Kinga Nyíri   +6 more
wiley   +1 more source