Results 51 to 60 of about 1,452,147 (241)
EVALUATION OF ENAMEL MICROHARDNESS AFTER APPLICATION OF THE PRE-REACTED GLASS IONOMER VARNISH IN PERMENANT TEETH (IN VITRO STUDY) [PDF]
Alexandria Dental JournalIntroduction: Surface pre-reacted glass ionomer varnish (S-PRG) is a product that contains filler particles incorporated into resin material and promising in arresting pits and fissure caries of permanent teeth.Objectives: Evaluate and compare the micro ...
Ahmed Yassin, Nadia Wahba, Reham Soliman
doaj +1 more source
Additive Manufacturing of Alumina‐Reinforced Elastomers
Advanced Engineering Materials, EarlyView.Vat‐photopolymerized elastomers reinforced with platelet‐shaped alumina exhibited preferential orientation, reduced porosity, and significantly enhanced mechanical performance. A 3 wt% platelet loading increased tensile strength from 12.4 to 45.7 MPa, highlighting the critical role of filler morphology in elastomeric VPP composites.
Majid Barzegar Keyvani +6 more
wiley +1 more source
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 +5 more
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Advanced Engineering Materials, EarlyView.Different Al/Al bimetals with a single engineered interface reveal how mechanical mismatch governs fatigue crack growth under cyclic loading. Additionally, loading–unloading–reloading tests link the microyielding behavior to the fatigue crack growth resistance, while crack‐path analysis reveals toughening mechanisms at the interface, highlighting ...
Sebastian Vollath +2 more
wiley +1 more source
DEVELOPMENT OF MICRO-HARDNESS AND WEAR PERFORMANCES OF BIOMEDICAL TITANIUM
, 2021 In the present work, the influence of thermal oxidation (TO) process on the micro-hardness and wear performances of a pure titanium (Ti) was studied.
Mohsin Mohammed
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ISE of Precious Metals: Au, Ag, Pd, and Pt
MetalsPrecious metals play an important role in various fields, from industry to jewelry and finance. In the industrial field, it is often necessary to know their mechanical properties. Micro-hardness measurement is a suitable test.
Lenka Girmanová +5 more
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Advanced Engineering Materials, EarlyView.Solvate ionic liquids lubrication reduced the coefficient of friction by ∼60% compared to dry sliding, reaching steady‐state values as low as 0.04–0.05. Corrosion weight‐loss measurements in 1 M HCl further demonstrated significant inhibition behavior, with only 100 ppm of [Li(G3)][TFSI] (∼68.5 μL/L) reducing corrosion‐product weight loss by 63 ...
Sameh Dabees +6 more
wiley +1 more source
Effect of curing modes on micro-hardness of dual-cure resin cements
Restorative Dentistry & Endodontics, 2011 Objectives The purpose of this study was to evaluate curing degree of three dual-cure resin cements with the elapsed time in self-cure and dual-cure mode by means of the repeated measure of micro-hardness.
Ki-Deok Lee, +3 more
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Micro-Drilling of ZTA and ATZ Ceramic Composit: Effect of Cutting Parameters on Surface Roughness [PDF]
, 2012 Ceramics are a class of materials widely used during last fifteen years for orthopaedic applications. It is well known that they are characterized by low wear rate, and friction coefficient.
Previtali, B. +4 more
core
Tetris with Few Piece Types [PDF]
We prove NP-hardness and #P-hardness of Tetris clearing (clearing an initial board using a given sequence of pieces) with the Super Rotation System (SRS), even when the pieces are limited to any two of the seven Tetris piece types.
Li, Jeffery +3 more
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