Results 1 to 10 of about 350,254 (296)

Effect of Enamel Bleaching on the Bond Strength of Ceramic—A Systematic Review

Oral, 2022
The increase in aesthetic demands has increased the use of ceramic dental restorations in dentistry. Ceramic restorations are bonded to the tooth structure using adhesives.
Tsz Ho Seto, Anastasiia Grymak, Vidya Mudliar, Joanne Jung Eun Choi   +3 more
doaj   +1 more source

Vacuum-Free Quantum Dots Planar Hybrid Solar Cells: Improving Charge Transport Using Reduced Graphene Oxide and PEO as the Buffer Layer

Applied Sciences, 2022
In this work, reduced graphene oxide (rGO) was synthesized using a modified Hummer method and its morphological and structural properties were investigated using transmission electron microscopy (TEM), high-resolution TEM (HR-TEM) and X-ray diffraction ...
Minsu Kim, Nguyen Tam Nguyen Truong, Nguyen Hoang Lam, Nam Le, Asiya M. Tamboli, Mohaseen S. Tamboli, Truong Nguyen Luan Vu, Jae Hak Jung   +7 more
doaj   +1 more source

Rough concepts [PDF]

Information Sciences, 2021
The present paper proposes a novel way to unify Rough Set Theory and Formal Concept Analysis. Our method stems from results and insights developed in the algebraic theory of modal logic, and is based on the idea that Pawlak's original approximation spaces can be seen as special instances of enriched formal contexts, i.e.
Willem Conradie, Sabine Frittella, Krishna Manoorkar, Sajad Nazari, Alessandra Palmigiano, Apostolos Tzimoulis, Nachoem M. Wijnberg   +6 more
openaire   +7 more sources

Electrical Field Strength in Rough Infinite Line Contact Elastohydrodynamic Conjunctions

Lubricants, 2022
Rolling element bearings are required to operate in a variety of use cases that determine voltage potentials will form between the rolling elements and races.
Samuel A. Morris, Michael Leighton, Nicholas J. Morris   +2 more
doaj   +1 more source

A Study on the Sub-5 nm Nano-Step Height Reference Materials Fabricated by Atomic Layer Deposition Combined with Wet Etching

Micromachines, 2022
Nano-steps, as classical nano-geometric reference materials, are very important for calibrating measurements in the semiconductor industry; therefore, controlling the height of nano-steps is critical for ensuring accurate measurements.
Chenying Wang, Lei Li, Weixuan Jing, Yaxin Zhang, Song Wang, Qijing Lin, Dan Xian, Qi Mao, Yijun Zhang, Duanzhi Duan, Ming Liu, Zhuangde Jiang   +11 more
doaj   +1 more source

Optical Properties of Tungsten: A Parametric Study to Characterize the Role of Roughness, Surface Composition and Temperature

Optics, 2022
Tungsten (W) is the material selected for the divertor exhaust of the international nuclear fusion experiment ITER. In this harsh environment, the interactions of heat loads and ion fluxes with W can induce temporary or permanent evolution in the optical
Federica Pappalardo, Francisco Romero Lairado, Cyprien Louis de Canonville, Céline Martin, Gregory Giacometti, Guillaume Serin, Eric Salomon, Thierry Angot, Laurent Gallais, Régis Bisson, Marco Minissale   +10 more
doaj   +1 more source

THE RATIONALE FOR THE DEVELOPMENT OF RECOMMENDATIONS ON THE SELECTION OF MODES OF GRINDING OF THE RESTORED CRANKSHAFTS

Вестник СибАДИ, 2017
In this article is described the shortcomings of existing methods of recovery of necks of the crankshafts. Crankshafts restore to the nominal size, grind on grinding machine, and install on engine after overhauling.
V. V. Elistratov, A. V. Agoshkov, E. V. Evdokymov, V. V. Makarenko   +3 more
doaj   +1 more source

Wall-Modeled and Hybrid Large-Eddy Simulations of the Flow over Roughness Strips

Fluids, 2022
The flow over alternating roughness strips oriented normally to the mean stream is studied using wall-modeled large-eddy simulations (WMLES) and improved delayed detached-eddy simulations (IDDES) (a hybrid method solving the Reynolds-averaged Navier ...
Teresa Salomone, Ugo Piomelli, Giuliano De Stefano   +2 more
doaj   +1 more source

A Stratified Characterization of Surface Quality of Beech Processed by Profile Milling

Applied Sciences, 2023
The evaluation of surface quality after milling still represents a challenge due to the stratified structure of wood. In this paper, the surface quality of beech wood obtained by profile milling was analyzed differentiating between tool marks, fuzzy ...
Luminița-Maria Brenci, Lidia Gurău
doaj   +1 more source

Top Surface Roughness Modeling for Robotic Wire Arc Additive Manufacturing

Journal of Manufacturing and Materials Processing, 2022
Wire Arc Additive Manufacturing (WAAM) has many applications in fabricating complex metal parts. However, controlling surface roughness is very challenging in WAAM processes.
Heping Chen , Ahmed Yaseer, Yuming Zhang    +2 more
doaj   +1 more source