Results 121 to 130 of about 1,287,317 (274)

Wafer‐Scale Direct Growth of Ultraclean Monolayer Amorphous Carbon on c‐Sapphire by Remote Catalytic Dehydrogenation

Advanced Materials, EarlyView.
Remote catalytic dehydrogenation enables the direct growth of monolayer amorphous carbon on a 2‐inch sapphire wafer by thermal CVD. Spatial separation of the catalyst from the growth substrate eliminates metallic residue and post‐growth processing, yielding a wafer‐scale uniform film with a random polygonal sp2‐hybridized carbon network that exhibits ...
Muhammad Sabbtain Abbas, Imhwan Kim, Seokje Lee, Yasir Hassan, Jihwan Kim, Eunsu Lee, Han Ik Kim, Yoonkang Kim, Gyu‐Chul Yi   +8 more
wiley   +1 more source

Effect of Nitrogen Doping on the Proton‐Irradiation Stability of Carbon Nanowalls

Advanced Materials Interfaces, EarlyView.
Proton irradiation effects in carbon nanowalls are systematically compared with nitrogen‐doped counterparts over a wide fluence range. While both systems maintain structural integrity, nitrogen incorporation alters the functional response under irradiation.
Baglan A. Kyrykbay, Rakhymzhan Ye. Zhumadilov, Renata R. Nemkayeva, Bauyrzhan Ye. Zhumadilov, Gulnur Akhtanova, Hryhorii Parkhomenko, Alexander V. Kireyev, Sagi A. Orazbayev, Tlekkabul S. Ramazanov, Maratbek T. Gabdullin, Askhat N. Jumabekov, Viktor V. Brus, Yerassyl Yerlanuly   +12 more
wiley   +1 more source

Assessment of the bypass of obturation materials beyond fractured instruments after using different obturation techniques in simulated curved canals (An in-vitro study).

PLoS ONE
This study evaluated the extent to which obturation materials bypass fractured endodontic instruments positioned in the middle and apical thirds of severely curved simulated root canals using different obturation techniques.
Ammar Aziz Lateef, Mohammed Rasheed Hameed, Noor Hayder Fadhil, Ahmed Hamid Ali   +3 more
doaj   +1 more source

Unlocking Terahertz Steganography: Authentication of Hidden Images in Flexible Media

Advanced Materials Technologies, EarlyView.
Hidden information in multilayered devices, such as steganographic portraits, is detected and authenticated using reflection‐mode terahertz time‐domain imaging. Image reconstruction relies on a dedicated figure‐of‐merit obtained by integrating the signal intensity over the time‐window associated with the reflection from the metallic mirror backing the ...
Tiziana Ritacco, Francesca Vittorioso, Dimitrios C. Zografopoulos, Romeo Beccherelli, Walter Fuscaldo   +4 more
wiley   +1 more source

Clinical evaluation of the capabilities and manipulative characteristics of a modified tungsten alloy endodontic finishing file

Эндодонтия Today
AIM. To conduct a clinical assessment of the capabilities and manipulation characteristics of a modified tungsten alloy endodontic finishing file.MATERIALS AND METHODS.
T. P. Goryacheva, D. A. Zaplutanova, O. A. Aleshina, E. E. Abramova, N. N. Shurova, E. V. Dobrovolskaya, T. V. Sidyagina, E. A. Eremeeva, D. R. Sadekova, D. V. Dmitrieva, G. A. Malanev   +10 more
doaj   +1 more source

High‐Density Magnetomyography With Optical Magnetometers Reveals Spatiotemporal Patterns of Evoked Muscle Activity

Advanced Materials Technologies, EarlyView.
Optically pumped magnetometers are employed to contactlessly map the spatiotemporal dynamics of the magnetic field linked to electrical activity of a skeletal muscle in vivo. It is demonstrated that localization of the clinically relevant innervation zone is feasible using this non‐invasive magnetic measurement modality. ABSTRACT Magnetomyography (MMG)
Simon Nordenström, Victor Lebedev, Stefan Hartwig, Marlen Kruse, Santiago Rodriguez, Lukas Baier, Nima Noury, Thomas Klotz, Ahmet Doğukan Keleş, Justus Marquetand, Markus Siegel, Oliver Röhrle, Thomas Middelmann   +12 more
wiley   +1 more source

Measure and compare the Degree of Root Canal Transportation and Canal-centering ability of Twisted, ProTaper, and Conventional Stainless Steel K Files using Spiral Computed Tomography: An in vitro Study

, 2017
AimThe aim of this study was to compare canal transportation and centering ability of Twisted files (TF) and ProTaper (PT) files with conventional stainless steel (SS) K files.Materials and methodsThirty mandibular premolar teeth with root curvature of ...
Anupama S Gopinathan, F Rejula, Shiji Dinakaran, Waseem Ahmed, Anulekh Babu, R Christalin   +5 more
core   +1 more source

Dynamic Fluorescence Modulation via Light‐Driven Competitive Protonation

Advanced Optical Materials, EarlyView.
A two‐component molecular system demonstrates reversible, light‐driven fluorescence write–erase cycling and thermal imaging. Illumination of a merocyanine photoacid transfers a proton to a highly efficient fluorescent pyridinium dye, switching its emission color; thermal relaxation reverses the process in the dark.
Serena X. Liu, Moritz E. Kleybolte, Colin van Dyck, Sergey I. Vagin, Preeti Gahtori, Antonio Scarpati, Razieh Firouzihaji, Diogo A. Galico, Ulrich S. Schubert, Julianne Gibbs, Alkiviathes Meldrum   +10 more
wiley   +1 more source

Differential Operators and Differential Calculus on $delta-$Hom-Jordan-Lie Superalgebras

پژوهش‌های ریاضی, 2020
Introduction Hom-algebraic ‎structures ‎appeared ‎first ‎as a‎ ‎generalization ‎of ‎Lie ‎algebras ‎in [1,3],  ‎where ‎the ‎authors ‎studied ‎‎q-deformations ‎of ‎Witt ‎and ‎Virasoro ‎algebras. A‎ ‎general ‎study ‎and ‎construction ‎of ‎Hom-Lie ‎algebras ‎
Valiollah Khalili
doaj  

Obrada korijenskih kanala Twisted File Adaptive sustavom

, 2018
One of the fundamental aims of endodontic treatment is to preserve the tooth in the mouth or at least to preserve its root by cleaning and by obturation of the root canals. The tooth is afterwards prosthetically compensated and its original function is thereby preserved.
openaire   +2 more sources