Results 231 to 240 of about 559,376 (319)

Quaternary Ammonium Dimethacrylates as an Additive in Dental Composite Resins: A Review of Their Antimicrobial, Mechanical, and Physicochemical Properties. [PDF]

Materials (Basel)
Ampah-Essel JE, Barszczewska-Rybarek I, Drejka P, Chladek G.   +3 more
europepmc   +1 more source

Quantifying Spin Defect Density in hBN via Raman and Photoluminescence Analysis

Advanced Functional Materials, EarlyView.
An all‐optical method is presented for quantifying the density of boron vacancy spin defects in hexagonal boron nitride (hBN). By correlating Raman and photoluminescence signals with irradiation fluence, defect‐induced Raman modes are identified and established an relationship linking optical signatures to absolute defect densities. This enables direct
Atanu Patra, Paul Konrad, Andreas Sperlich, Timur Biktagirov, Wolf Gero Schmidt, Lesley Spencer, Igor Aharonovich, Sven Höfling, Vladimir Dyakonov   +8 more
wiley   +1 more source

Energy-efficient design of CNTFET-based quaternary arithmetic circuits. [PDF]

Sci Rep
Rupani A, Bansal D, Sharma K.
europepmc   +1 more source

The quaternary climate in loess sediments: evidence from rock and mineral magnetic and geochemical analysis

, 2000
Maurizio Sartori
openalex   +2 more sources

Self‐Trapped Hole Migration and Defect‐Mediated Thermal Quenching of Luminescence in α‐ and β‐Ga2O3

Advanced Functional Materials, EarlyView.
Temperature‐dependent photoluminescence and first‐principles calculations reveal self‐trapped hole migration as the microscopic origin of thermal quenching in α‐ and β‐Ga2O3. The low migration barrier in α‐Ga2O3 enables defect trapping and enhances blue luminescence, while the higher barrier in β‐Ga2O3 preserves ultraviolet emission at elevated ...
Nima Hajizadeh, Ymir K. Frodason, Clemens Petersen, Benjamin M. Janzen, Luca Sung‐Min Choi, Nils Bernhardt, Felix Nippert, Zbigniew Galazka, Joel B. Varley, Holger von Wenckstern, Lasse Vines, Markus R. Wagner   +11 more
wiley   +1 more source

Neogene-Quaternary Volcanic forms in the Carpathian-Pannonian Region: a review

Open Geosciences, 2010
Lexa Jaroslav, Seghedi Ioan, Németh Karoly, Szakács Alexandru, Koneĉny Vlastimil, Pécskay Zoltan, Fülöp Alexandrina, Kovacs Marinel   +7 more
doaj   +1 more source

Enantioselective Beckmann Rearrangement through Organocatalytic Desymmetrization of Cyclobutanones for the Synthesis of 4,4-Disubstituted γ-Lactams. [PDF]

Org Lett
Igartua A, Prieto L, Uria U, Carrillo L, Reyes E, Vicario JL.   +5 more
europepmc   +1 more source

Multiple Twinning in Nacre and Aragonite

Advanced Functional Materials, EarlyView.
Electron backscatter diffraction map of a cluster of geologic aragonite, exhibiting single, double, and triple twins. The whole cluster is approximately 2 cm wide. Colors indicate crystal orientations, so that pixels where the a‐, b‐, and c‐axis is perpendicular to the image plane are green, red, and blue, respectively.
Connor A. Schmidt, William O. Nachlas, Bil Schneider, Xiaoming Mao, Eric Tambutté, Alexander A. Venn, Sylvie Tambutté, Pupa U. P. A. Gilbert   +7 more
wiley   +1 more source

Selective Synthesis of α,α-Difluoro- and α-Monofluoro Methylene Substituted Arenes by Defluoro C-C Bond Coupling. [PDF]

Org Lett
Rosario-Collazo JL, Keita H, Velo M, Meek SJ.   +3 more
europepmc   +1 more source

Electroactive Liquid Crystal Elastomers as Soft Actuators

Advanced Functional Materials, EarlyView.
Electroactive liquid crystal elastomers (eLCEs) can be actuated via electromechanical, electrochemical, or electrothermal effects. a) Electromechanical effects include Maxwell stress, electrostriction, and the electroclinic effect. b) Electrochemical effects arise from electrode redox reactions.
Yakui Deng, Min‐Hui Li
wiley   +1 more source