Results 21 to 30 of about 19,319 (193)

USE A CU STOM-MAD E CAD PROBE HOLDERS FOR PERIODONTAL MICROCIRCU LATION ASSESSMENT BY LASER DOPPLER FLOWMETRY

open access: yesПаёми Сино, 2022
Objective: To perform laser Doppler flowmetry (LDF) periodontal microcirculation assessment using custom-made, computer-aided-designed probe holders manufactured by stereolithography (SLA).
A. A. FLENKIN, S.N. ERMOLYEV
doaj   +1 more source

Effective Mechanisms of Multiple LED Photographic Curing [PDF]

open access: yes, 1998
Multiple LED Photographic Curing (MPC) has proven capable of drawing cross sections of three-dimensional objects like printing a sheet of paper. Using raster scanning, however, simultaneously exposing a photopolymer with 1,024 beams of light involves ...
Loose, Kai   +2 more
core   +1 more source

Lasers and Photopolymers [PDF]

open access: yesLaser Chemistry, 1990
A general outline of new applications of lasers in polymer photochemistry is given. The fields covered include the kinetic and mechanistic study of various elementary processes (in solution model compounds) by laser spectroscopies and the extension of this approach to practical systems (solids or in polymerization samples, thin films) by holographic ...
C. Carre   +3 more
openaire   +1 more source

Additively manufacturable micro-mechanical logic gates. [PDF]

open access: yes, 2019
Early examples of computers were almost exclusively based on mechanical devices. Although electronic computers became dominant in the past 60 years, recent advancements in three-dimensional micro-additive manufacturing technology provide new fabrication ...
Chizari, Samira   +6 more
core   +2 more sources

A Comparative Cytotoxic Evaluation of Acrylamide and Diacetone Acrylamide to Investigate Their Suitability for Holographic Photopolymer Formulations

open access: yesInternational Journal of Polymer Science, 2013
The comparative cytotoxic evaluation of two monomers, diacetone acrylamide (DA) and acrylamide (AA) used in holographic photopolymer formulations, is reported. Two normal cell lines were used: BEAS-2B and HaCaT.
Dervil Cody   +3 more
doaj   +1 more source

Holographic waveguides in photopolymers

open access: yesOptics Express, 2019
The possibilities that offer the holographic optical elements for photovoltaic and "see through display" applications open new windows for holographic recording materials. In this sense, some specific characteristics are required for each particular application. Waveguides are one of the key elements for these applications. Photopolymers are one of the
R. Fernández   +7 more
openaire   +3 more sources

Visualization of Au Nanoparticles Buried in a Polymer Matrix by Scanning Thermal Noise Microscopy [PDF]

open access: yes, 2016
We demonstrated visualization of Au nanoparticles buried 300 nm into a polymer matrix by measurement of the thermal noise spectrum of a microcantilever with a tip in contact to the polymer surface.
Kimura, Kuniko   +4 more
core   +2 more sources

Upconversion particle-assisted NIR polymerization enables microdomain gradient photopolymerization at inter-particulate length scale

open access: yesNature Communications, 2023
High crosslinking and low shrinkage stress are difficult to reconcile in the preparation of performance-enhancing photopolymer materials. Here we report the unique mechanism of upconversion particles-assisted NIR polymerization (UCAP) in reducing ...
Peng Hu   +4 more
doaj   +1 more source

Preparation and characterization of 3D printable flexible acrylate-based resin

open access: yesFogorvosi Szemle, 2023
The aim of this study was to prepare an acrylate-based 3D printable resin that showed flexible properties after photopolymerization and to characterize mechanical-physicochemical properties of polymerized objects.
Melinda Szalóki   +2 more
doaj   +1 more source

Readout fidelity of coaxial holographic digital data page recording in nanoparticle–(thiol–ene) polymer composites [PDF]

open access: yes, 2016
We report on an experimental investigation of nanoparticle-concentration and thiol-to-ene stoichiometric ratio dependences of symbol error rates (SERs) and signal-to-noise ratios (SNRs) of digital data pages recorded at a wavelength of 532 nm in thiol ...
Eiji Hata, Kohta Nagaya, Yasuo Tomita
core   +2 more sources

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