Results 21 to 30 of about 58,847 (243)

Polishing Performance and Removal Mechanism of Core-Shell Structured Diamond/SiO2 Abrasives on Sapphire Wafer

open access: yesMicromachines, 2022
Corrosive and toxic solutions are normally employed to polish sapphire wafers, which easily cause environmental pollution. Applying green polishing techniques to obtain an ultrasmooth sapphire surface that is scratch-free and has low damage at high ...
Guangen Zhao   +5 more
doaj   +1 more source

Does Sterilization Affect the Performance of Single-Step Resin Composite Polishers?

open access: yesDentistry Journal, 2023
(1) Background: Single-step polishers are used extensively for resin-composite polishing. The purpose of this study was to evaluate the effect of sterilization on their performance.
Christina Papadopoulou   +4 more
doaj   +1 more source

Development of epoxy resin polishing pads with the addition of polymer particles

open access: yesNihon Kikai Gakkai ronbunshu, 2018
Polishing processes are critical to high material removal rate and excellent surface roughness. To realize the highly-efficient polishing of glassware, which are used as materials for flat-panel displays, glass lens, substrates of magnetic disks, a new ...
Yu ZHANG, Yasuhiro TANI, Nobuyuki NOMURA
doaj   +1 more source

Impact of the Enamel Cleaning Procedure during Debonding on Endodontium Temperature: In Vitro Tests

open access: yesApplied Sciences, 2020
Interference with live tooth tissue during dental treatment affects the temperature within the pulp. The pulp is sensitive to temperature changes, which can cause its inflammation.
Monika Machoy   +5 more
doaj   +1 more source

Preparation, microstructure and properties of LaCePr polishing slurry for optical glass CMP

open access: yesJin'gangshi yu moliao moju gongcheng
Objectives: In recent years, cerium-based rare earth polishing liquids have been widely used in the field of chemical mechanical polishing (CMP) of glass and other materials due to their excellent selectivity and good polishing efficiency, but their ...
Quanxin ZHANG   +7 more
doaj   +1 more source

Study on the Influence of Sapphire Crystal Orientation on Its Chemical Mechanical Polishing

open access: yesApplied Sciences, 2020
Sapphire has been the most widely used substrate material in LEDs, and the demand for non-C-planes crystal is increasing. In this paper, four crystal planes of the A-, C-, M- and R-plane were selected as the research objects.
Linlin Cao   +6 more
doaj   +1 more source

Influence of Defects in Surface Layer of Al2O3/TiC and SiAlON Ceramics on Physical and Mechanical Characteristics

open access: yesCeramics, 2023
The paper studies the influence of diamond grinding, lapping, and polishing on the surface layer and defectiveness of the Al2O3/TiC and SiAlON ceramic samples.
Sergey N. Grigoriev   +3 more
doaj   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

open access: yesFEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee   +3 more
wiley   +1 more source

Effects of Surface Preparation Methods on the Color Stability of 3D-Printed Dental Restorations

open access: yesJournal of Functional Biomaterials, 2023
Background: Color stability is a crucial performance parameter for dental restorations, and limited research exists on how surface preparation methods affect it.
Zbigniew Raszewski   +2 more
doaj   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa   +5 more
wiley   +1 more source

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