Results 141 to 150 of about 78,079 (295)

Hydrostatic and Anisotropic Pressure Responses in Tetragonal Zirconia Nanoparticles

open access: yesEuropean Journal of Inorganic Chemistry, EarlyView.
Tetragonal zirconia nanoparticles exhibit remarkable sensitivity to a nonhydrostatic pressure component while remaining largely unaffected by hydrostatic pressure. Their tetragonal‐to‐monoclinic phase transition enables the detection of nonhydrostatic pressure components in the MPa range, providing a new strategy for evaluating nonhydrostatic pressure ...
Yuki Konno   +5 more
wiley   +1 more source

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

Chlorinated Byproducts in Diisocyanates Synthesis From 35Cl Nuclear Quadrupole Resonance

open access: yesHelvetica Chimica Acta, EarlyView.
We combine 35Cl NQR spectroscopy & DFT to identify trace chlorinated impurities in industrial MDI streams, creating a non‐destructive “analytical ruler” for chemical process monitoring. ABSTRACT Chlorinated impurities in industrial diisocyanates production significantly impact product quality and stability, yet their speciation remains an analytical ...
Anna Giorgia Nobile   +7 more
wiley   +1 more source

Comparing Digital Reduction Guides and Free‐Hand Techniques for Predoctoral Crown Preparation Accuracy

open access: yesJournal of Dental Education, EarlyView.
ABSTRACT Purpose/Objectives Insufficient tooth reduction compromises crown longevity and aesthetics. This study aimed to determine whether digitally designed, 3D‐printed reduction guides improved crown preparation accuracy and efficiency for dental students compared to freehand preparation.
Xiaoyue Shi, Shuncong Xu, Chenxuan Wei
wiley   +1 more source

Use of ultrasonography in assessing peri‐implant osseous defects: An in vitro study

open access: yesJournal of Periodontology, EarlyView.
Abstract Background The purpose of this study is to investigate the feasibility and diagnostic accuracy of ultrasonography in peri‐implant defect identification and evaluation, and to compare ultrasonography (USG) with cone‐beam computed tomography (CBCT) in defect identification and evaluation in an in vitro model.
Melissa Rachel Fok   +4 more
wiley   +1 more source

Bio‐Derived Nanophotonic Hybrids Enabling Reconfigurable Upconversion for Multilevel Optical Encryption

open access: yesLaser &Photonics Reviews, EarlyView.
A dual‐gated nanophotonic platform integrates lanthanide‐doped upconversion nanoparticles with a stimuli‐responsive silk–zirconia photonic crystal to enable multilevel optical encryption. Resonant photonic coupling allows hydration‐dependent modulation of visible emission under near‐infrared excitation, achieving reversible switching between decoy and ...
Taehoon Kim   +3 more
wiley   +1 more source

Development of Calcium‐Based Coatings to Mitigate Vanadate Corrosion

open access: yesMaterials and Corrosion, EarlyView.
Ca‐rich coatings can suppress the corrosive attack of molten V2O5 by forming Ca2 V2 O7 and Ca V2 O6. For this, a large Ca‐reservoir is key to mitigate corrosion at 600°C and 700°C. ABSTRACT Vanadate corrosion occurs in devices powered by heavy fuel oil, such as stationary turbines.
Mark Alexander Ulherr   +5 more
wiley   +1 more source

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