Results 101 to 110 of about 29,206 (304)

Demonstration of a Two‐Electron Pathway in Piezoelectric Mechanochemistry: Synthesis and Mechanical Adaptation of Polythiourethane

Angewandte Chemie, EarlyView.
A mechano‐triggered polythiourethane (PTU) synthesis mediated by a two‐electron pathway. The polymerization proceeds efficiently (<1 h) under focused ultrasound, achieving >90% conversion without any conventional base catalyst. The approach demonstrates broad compatibility with various thiol/isocyanate monomer combinations, highlighting its synthetic ...
Yixiao Dong, Farsa Ram, John Brownridge, Thalia Haines, Pin‐Ruei Huang, María José Román‐Vasquez, Jun Wang, Aaron P. Esser‐Kahn   +7 more
wiley   +2 more sources

Effect of Different Beverages and Polishing Systems on Color Stability and Surface Roughness of a Smart Chromatic Composite Resin and Methacrylate Composites

Current Research in Dental Sciences
Objective: The purpose of the study is to evaluate the color stability and surface roughness of smart chromatic composite resin and methacrylate composite resins with applying different polishing systems and stored in different solutions.Methods: In the ...
Özcan Karataş, Semiha Ekrikaya
doaj   +1 more source

Catalytic Luminescent Polymer Micromotors With Shape‐Programmed Motion

Advanced Science, EarlyView.
A Janus micromotor is designed with an SiO2/Ti/ITO/PFN‐Br/Pt heterostructure with an engineered energy level. The ITO conductive interlayer facilitates efficient charge separation, generating interfacial electric fields and ionic gradients for enhanced light‐driven propulsion.
Yuyang Zhang, Wenyang Huang, Xinwen Gao, Yuhan He, Fei Huang, Tingting Yu   +5 more
wiley   +1 more source

Comparison of Surface Roughness of Ceramics after Polishing with Different Intraoral Polishing Systems using Profilometer and SEM

, 2015
Purpose: To evaluate the effects of the different available intraoral ceramic polishing systems on the surface roughness of the latest ceramic materials. Methods: Eighty ceramic discs (5mmx2mm) were prepared from 2 ceramic materials (VM9 and e.max) using
AlHanouf AlHabdan, Ahmed El
semanticscholar   +1 more source

Accuracy of the radius evaluation with contact profilometer [PDF]

, 2010
Z wynikiem pomiaru chropowatości elementu o kołowym przekroju, za pomocą profilometru stykowego, wyznaczany jest opromienień dopasowanego okręgu. Zauważono, że wartości promieni wykazują błędy o charakterze systematycznym i losowym, których wielkości nie
Iwasińska-Kowalska, O.
core  

Laser Triangulation Profilometer for Inner Surface Inspection of 100 millimeters (4") Nominal Diameter

, 2015
A new axis-symmetrical system was developed for inner surface pipe measurement focused in the Oil & Gas industry, aiming the quantification of corrosion and others inner surface anomalies.
P. Buschinelli, T. Pinto, F. Silva, J. Santos, A. Albertazzi   +4 more
semanticscholar   +1 more source

EHD‐LIFT: Electrohydrodynamic Laser Induced Forward Transfer

Advanced Science, EarlyView.
Electrohydrodynamic laser‐induced forward transfer (EHD‐LIFT) introduces electric field‐assisted control to LIFT. Through laser‐patterning a conductive absorber layer, local curvatures are induced in the donor film, enabling flow‐focusing for transfer of smaller droplets at lower laser energies.
Ankit Das, Jordi Torres‐Durall, J. Marcos Fernández‐Pradas, Chien‐Fang Ding, Martí Duocastella, Craig B. Arnold   +5 more
wiley   +1 more source

Effect of Staining and External Bleaching on the Color Stability and Surface Roughness of Universal-Shade Resin-Based Composite

Clinical, Cosmetic and Investigational Dentistry
AlHanouf AlHabdan,1 Amal Alsuhaibani,2 Lama Alomran,2 Lulwah Almutib2 1Department of Restorative Dental Sciences, King Saud University, Riyadh, Saudi Arabia; 2College of Dentistry, King Saud University, Riyadh, Saudi ArabiaCorrespondence: AlHanouf ...
AlHabdan A, Alsuhaibani A, Alomran L, Almutib L   +3 more
doaj  

Correction of Scanning Steps to Improve Accuracy in Interferometric Profilometer

Measurement Science Review, 2015
In scanning interferometry of longitudinal shift, an uncertainty of required phase shift performance leads to a measurement error. Such uncertainty can be caused by external factors (vibrations, air turbulence in measuring area etc.) as well as ...
Sysoev E., Kulikov R., Vykhristyuk I., Chugui Yu.   +3 more
doaj   +1 more source

Stoney Formula: Investigation of Curvature Measurements by Optical Profilometer

, 2014
Thin films’ residual stress is often determined by the Stoney formula, using the measurements of the substrate curvature, even if the required hypotheses are not completely respected.
M. Ardigo, M. Ahmed, A. Besnard
semanticscholar   +1 more source