Results 91 to 100 of about 243,823 (237)

Rational design of Ni‐based catalysts for methane dry reforming: Recent advances and future perspectives

open access: yesFlexMat, EarlyView.
Addressing the challenges inherent in dry reforming of methane (DRM), this paper focuses on the structural design and performance optimization of Ni‐based catalysts. The modulation strategies for DRM are systematically reviewed across four dimensions: the micromorphology of active metals, metal‐support interactions, electronic modifications by ...
Bowei Cao, Junlei Zhang, Wanglei Wang
wiley   +1 more source

Shear Bond Strength of Porcelain to a Base-Metal Compared to Zirconia Core

open access: yesJournal of Dental Biomaterial, 2017
Statement of Problem: Recent clinical results for Zirconia all-ceramic restorations have revealed that the fracture rate 6-15% of the Zirconia framework is so low and the core of Zirconia has high stability.
Abrisham SM   +3 more
doaj  

Progress in Explosion Mechanisms and Prevention Technologies for Direct Chill Casting Aluminum Melt Upon Water Contact: A Review

open access: yesSafety Science and Technology, EarlyView.
Molten aluminum–water explosion triggered by leakage remains the core unresolved safety hazard hindering safe production in aluminum direct chill casting. This review summarizes its explosion mechanism, key influencing factors, prevention technologies, existing gaps, and prospects of intelligent multi‐technology integrated explosion‐proof systems ...
Min Wang   +5 more
wiley   +1 more source

Ultra‐High‐Speed Sintering of 3.5Y‐TZP Zirconia: Time Reduction Without Compromising Translucency

open access: yesJournal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objectives To assess, firstly, the impact of three sintering speeds on translucency and grain size of 3.5Y‐TZP zirconia (Katana HT) across clinically relevant thicknesses, and secondly, the effect of thermocycling on translucency. Materials and Methods Disc specimens were fabricated at six thicknesses (0.7–2.0 mm) and sintered using SLOW (7 h),
Tatiana Roman   +5 more
wiley   +1 more source

Body-Guard Design [PDF]

open access: yes, 2019
This essay focuses on one of the numerous aspects in design that illustrates the necessity of including gender. It discusses gender identities between subjection and agency within the broad realm of matters, textiles, and fashion. The article exemplarily
Brandes, Uta, Uta Brandes
core   +1 more source

Effect of sintering cycle on the strength and translucency of multilayered zirconia

open access: yesJournal of Prosthodontics, EarlyView.
Abstract Purpose A newly introduced sintering protocol promises to offer higher translucency while not significantly compromising the flexural strength of the material. However, the effect of the novel sintering protocol has not been thoroughly validated.
Kedith Sawangsri   +3 more
wiley   +1 more source

Making a Case for Modularity [PDF]

open access: yes, 2020
What we design and how it is made are intimately connected. The need to make modular components is a consequence of construction methodology and disposition in production and manufacturing.
Widrig, Daniel   +3 more
core   +1 more source

Effect of material, prosthesis height, and aging on the fracture strength of additively and subtractively manufactured implant‐supported cantilevered prostheses

open access: yesJournal of Prosthodontics, EarlyView.
Abstract Purpose This study aimed to evaluate the inherent and after cyclic loading fracture strength of implant‐supported cantilevered fixed prostheses fabricated from recently introduced additively manufactured (AM) and subtractively manufactured (SM) materials, considering variations in prosthesis height.
Mustafa Borga Dönmez   +6 more
wiley   +1 more source

Effects of high‐speed sintering on the translucency and color of dental zirconia with different shades and yttria contents

open access: yesJournal of Prosthodontics, EarlyView.
Abstract Purpose This study evaluated the effects of high‐speed sintering on the translucency and color of various yttria‐stabilized zirconia (YSZ) compositions and identified factors influencing these properties to improve clinical predictability. Materials and Methods A total of 144 disc‐shaped specimens fabricated from 3YSZ, 4YSZ, and 5YSZ pucks in ...
Zidu Zeng   +3 more
wiley   +1 more source

Effect of Different Surface Treatments on Bond Strength to Tetragonal and Cubic Zirconia [PDF]

open access: yes, 2021
Background: Dental zirconia has been widely used due to its superior mechanical properties. However, traditional etching techniques and surface treatments are generally ineffective on zirconia surfaces due to its inertness and lack of a silica phase ...
Abdelnaby, Mohamed Mahmoud   +3 more
core  

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