Results 61 to 70 of about 4,185,521 (319)

Chemical and Laser Cleaning of Corrosion Encrustations on Historical Stained Glass: A Comparative Study

Heritage, 2023
The aim of this research work was to conduct a comparative study on the effectiveness of the application of chemical cleaning versus laser cleaning in the removal of surface congruent dissolution products from a potash-lime–silica historical stained ...
Evan Maina Maingi, María P. Alonso, Luis A. Angurel, German F. de la Fuente, Stéphan Dubernet, Rémy Chapoulie, Oriane Mellouët, Elodie Vally   +7 more
doaj   +1 more source

Understanding the Burden of Orofacial Involvement and Patient Treatment Preferences in Systemic Sclerosis: Results From a Large International Survey

Arthritis Care &Research, EarlyView.
Objective Orofacial manifestations are significantly impactful in patients with systemic sclerosis (SSc) yet remain understudied, with no dedicated clinical guidelines to inform their management. Methods An international online survey comprised38 questions addressing orofacial manifestations of SSc, including patients’ confidence in their treating ...
Eleni Deligianni, Lee Shapiro, Deana Gibbs, Zsuzsanna H. McMahan, Michael Hughes   +4 more
wiley   +1 more source

A novel interlayer cleaning methods for improving internal quality in wire-arc directed energy deposition: processing, characterisation and performance demonstration

Virtual and Physical Prototyping
To address the surface oxidation and porosity defects in the wire-arc directed energy deposition of aluminum alloys, a laser-arc composite cleaning method is proposed for the irregular surface morphology of the deposited layer during the deposition ...
Hao Liu, Fan Jiang, Cheng Li, Ruican Zhu, Wei Liu, Di Yang, Zhihe Xu, Cheng Zhang, Shujun Chen, Bing Bai   +9 more
doaj   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

Advanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal, Michael M. Becker, Sarah C. L. Fischer   +2 more
wiley   +1 more source

Comparison of Triply Periodic Minimal Surface Energy Absorbers Under Uniaxial Compressive Loading

Advanced Engineering Materials, EarlyView.
This study investigates LCD 3D printed Triply Periodic Minimal Surface (TPMS) structures as mechanical energy absorbers. By comparing various base designs and layered combinations under uniaxial compression, it identifies that a Diamond‐Gyroid sandwich structure offers superior performance.
Sergej Grednev, Noah‐Lean Roschlaub, Anne Jung   +2 more
wiley   +1 more source

Effects of Ultra-High Power Continuous Laser Cleaning Process Parameters on the Cleaning Quality of Q355B Steel [PDF]

Cailiao Baohu
To investigate the effects of ultra-high power continuous laser cleaning on Q355B steel, an ultra-high power fiber laser was used to clean contaminants such as rust from the surface of Q355B steel.
LI Changqi, LIU Lie, HAN Lianghua
doaj   +1 more source

Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials

Advanced Engineering Materials, EarlyView.
Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
wiley   +1 more source

Laser cleaning of paintings: in situ optimization of operative parameters through non-invasive assessment by optical coherence tomography (OCT), reflection FT-IR spectroscopy and laser induced fluorescence spectroscopy (LIF)

Heritage Science, 2019
Nowadays the use of laser technology as a highly precise tool for the cleaning of paintings is gaining ground. The development of a non-invasive analytical protocol aimed at thorough assessment of the treated surfaces and real time monitoring of the ...
Patrizia Moretti, Magdalena Iwanicka, Kristalia Melessanaki, Evdoxia Dimitroulaki, Olga Kokkinaki, Melissa Daugherty, Marcin Sylwestrzak, Paraskevi Pouli, Piotr Targowski, Klaas Jan van den Berg, Laura Cartechini, Costanza Miliani   +11 more
doaj   +1 more source

Compact Disc Laser Cleaning for Polycarbonate Recovering [PDF]

Procedia CIRP, 2013
AbstractIn this research work, laser cleaning of Compact Discs (CDs) through the employment of a 30W MOPFA Q-switched pulsed Yb:YAG fibre laser is investigated. The laser beam is used to ablate the metal substrate located between the polycarbonate layer and the outer serigraphy of CDs with the final aim to recover the polycarbonate layer and make it ...
LEONE, CLAUDIO, GENNA, SILVIO, CAGGIANO, ALESSANDRA   +2 more
openaire   +3 more sources

Controlling Grain Growth in Powder Bed Fusion of Yttria‐Stabilized Zirconia Using Femtosecond Lasers: Challenges and Methodological Insights

Advanced Engineering Materials, EarlyView.
Binder‐free laser powder bed fusion of 8YSZ with a femtosecond laser is used to map process windows linking scan strategy, heat accumulation, and grain growth. Time‐resolved thermography and simulations reveal thermal regimes that enable continuous, vitrified, and fine‐grained 8YSZ surface layers without absorptive additives and demonstrate ...
Markus Kühn, Sarah Kaden, Andrea Barz, Daniel Störzner, Jens Bliedtner, Andrés Fabián Lasagni   +5 more
wiley   +1 more source