Results 11 to 20 of about 4,185,521 (319)

Laser Cleaning as Novel Approach to Preservation of Historical Books and Documents on a Paper Basis

Quantum Beam Science, 2022
The purpose of this work is the study of laser cleaning of historical paper. The effect of laser exposure of the paper reflectance, fracture resistance and acidity was investigated.
Vadim Parfenov, Alexander Galushkin, Tatiana Tkachenko, Vladimir Aseev   +3 more
doaj   +2 more sources

Laser cleaning of unwanted jewelry patina [PDF]

Tehnika, 2022
Women's necklace-filigree with patina, of unknown age, owned by a private collection was cleaned with a Nd:YAG laser. Laser parameters were varied during the experiment; wavelength, fluence and number of pulses, ie irradiation time.
Ristić Slavica S., Polić Suzana R., Radojković Bojana M.   +2 more
doaj   +2 more sources

Characteristic and mechanism of pollution by laser cleaning high-value vehicle parts with a complex structure in remanufacturing industry [PDF]

Fundamental Research
Remanufacturing high-value vehicle parts is of substantial significance for the circular economy because it provides a second service life and reduces solid waste generation.
Rui Wang, Lu Zhan, Zhenming Xu
doaj   +2 more sources

Self-adaptive cleaning technology for artillery laser ignition windows based on current feedback [PDF]

Scientific Reports
Laser ignition is a novel artillery ignition technology. However, residues from propellant combustion adhere to the surface of the laser ignition window, obstructing the laser beam.
Zebang Sun, Jianwei Yang, Ruixia Kang, Shixuan Li, Ning Liu, Boyi Zhao, Liangliang Yang   +6 more
doaj   +2 more sources

High-brightness electron beam evolution following laser-based cleaning of a photocathode [PDF]

Physical Review Special Topics. Accelerators and Beams, 2012
Laser-based techniques have been widely used for cleaning metal photocathodes to increase quantum efficiency (QE). However, the impact of laser cleaning on cathode uniformity and thereby on electron beam quality are less understood.
F. Zhou, A. Brachmann, F-J. Decker, P. Emma, S. Gilevich, R. Iverson, P. Stefan, J. Turner   +7 more
doaj   +2 more sources

Security optimization of artefacts laser cleaning [PDF]

Tehnika, 2017
Laser techniques have become irreplaceable in solving a wide variety of conservation problems. For the last thirty years, lasers have been used in the diagnostic process, in the process of removing undesirable layers, as well as in repairing damages of ...
Polić Suzana R., Ristić Slavica S., Radojković Bojana M., Jegdić Bore V., Janičijević Milovan M.   +4 more
doaj   +2 more sources

Real-Time Monitoring of Laser Cleaning for Hot-Rolled Stainless Steel by Laser-Induced Breakdown Spectroscopy

Metals, 2021
Laser cleaning is a competitive alternative to ablate and remove the hard oxide layer on hot-rolled stainless steel. To meet the practical demand, laser-induced breakdown spectroscopy (LIBS) was applied for real-time monitoring of the cleaning process in
Xing Li, Yingchun Guan
doaj   +2 more sources

Pulsed laser cleaning of resin-based surface coating on the titanium alloy substrate

AIP Advances, 2021
In this work, the laser cleaning process of the surface coating for the Ti-6Al-4V titanium alloy was investigated using a pulsed laser, including cleaning time, laser power, and scanning speed. Meanwhile, the corresponding mechanism of laser cleaning was
Jianzhong Wen, Yuqin Li, Jinyu Fan, Xiaolong Wei   +3 more
doaj   +1 more source

Comparative study on laser cleaning SiO2 particle on SrTiO3 and Si surfaces

AIP Advances, 2022
In this paper, we perform a comparative study, both experimentally and theoretically, on the dry laser cleaning SiO2 particles on the surface of SrTiO3 (STO) and Si single crystal substrates.
Lingyan Wu, Aini Yang, Chi Ma, Jun He, Lejun Yu, Bo Sun, Tianxing Ma, Ruifen Dou, Jiacai Nie, Changmin Xiong   +9 more
doaj   +1 more source

Study on the Technology and Mechanism of Cleaning Architectural Aluminum Formwork for Concrete Pouring by High Energy and High Repetition Frequency Pulsed Laser

Photonics, 2023
In the field of construction, the surface of architectural aluminum formwork for concrete pouring will remain the concrete adhesion layer of heterogeneous composite structures. In view of the difficulty of removing the concrete adhesion layer, we studied
Kun Gao, Jinjun Xu, Yue Zhu, Zhiyan Zhang, Quansheng Zeng   +4 more
doaj   +1 more source