Showing 61 - 80 results of 85 for search '"laser ablation"', query time: 0.05s Refine Results
  1. 61

    Experiment and Prediction of Ablation Depth in Excimer Laser Micromachining of Optical Polymer Waveguides by K. F. Tamrin, S. S. Zakariyah, K. M. A. Hossain, N. A. Sheikh

    Published 2018-01-01
    “…Among the manufacturing methods, UV laser ablation using an excimer laser has been repeatedly demonstrated as a suitable technique to fabricate multimode polymer waveguides. …”
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  2. 62

    Detection and Analytical Capabilities for Trace Level of Carbon in High-Purity Metals by Laser-Induced Breakdown Spectroscopy with a Frequency Quintupled 213 nm Nd:YAG Laser by Masaki Ohata, Toshiki Nakae

    Published 2017-01-01
    “…From these results, the frequency quintupled 213 nm Nd:YAG laser, which was adopted widely as a commercial laser ablation (LA) system coupled with inductively coupled plasma mass spectrometry (ICPMS) for trace element analysis in solid materials, could be used for C analysis to achieve simultaneous measurements for both C and trace elements in metals by LIBS and LA-ICPMS, respectively.…”
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  3. 63

    Inhibition of Staphylococcus aureus α-Hemolysin Production Using Nanocurcumin Capped Au@ZnO Nanocomposite by Majid S. Jabir, Taha M. Rashid, Uday M. Nayef, Salim Albukhaty, Faizah A. AlMalki, Jawaher Albaqami, Amal A. AlYamani, Zainab J. Taqi, Ghassan M. Sulaiman

    Published 2022-01-01
    “…Nanoparticles of gold with zinc oxide (Au@ZnO NPs) were prepared by laser ablation and then capped with curcumin nanoparticles (Cur-Au@ZnO NPs). …”
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  4. 64

    Progresses in Fluid Inclusion Synthesis in Quartz by Jun Du, Honglun Chang, Hongwei Liu

    Published 2022-01-01
    “…Furthermore, it is suggested that in situ and (or) large volume fluid inclusion synthesis will be an important future direction in view of the growing applications of the FIS techniques in combination with microanalytical techniques, especially the Laser Ablation-Inductively Coupled Plasma-Mass Spectrometry (LA-ICP-MS). …”
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  5. 65

    The methods of treatment of atrial fibrillation in patients with valvular heart disease by O.M. Grytsay, Y.V. Skybchyk, I.Y. Mokryk, E.V. Zhytyns’kiy, V.О. Kuts, О.J. Zharinov, B.M. Todurov

    Published 2019-03-01
    “…The efficiency of surgical ablation in valvular atrial fibrillation is discussed, i.e. radiofrequency ablation, laser ablation, microwave ablation, their efficiency in addition to surgical treatment. …”
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  6. 66

    Factors Associated with Recurrence of Varicose Veins after Thermal Ablation: Results of The Recurrent Veins after Thermal Ablation Study by R. G. Bush, P. Bush, J. Flanagan, R. Fritz, T. Gueldner, J. Koziarski, K. McMullen, G. Zumbro

    Published 2014-01-01
    “…The goal of this retrospective cohort study (REVATA) was to determine the site, source, and contributory factors of varicose vein recurrence after radiofrequency (RF) and laser ablation. Methods. Seven centers enrolled patients into the study over a 1-year period. …”
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  7. 67

    Mechanical Coupling between Endoderm Invagination and Axis Extension in Drosophila. by Claire M Lye, Guy B Blanchard, Huw W Naylor, Leila Muresan, Jan Huisken, Richard J Adams, Bénédicte Sanson

    Published 2015-01-01
    “…We probed this posterior region using laser ablation and showed that tension is increased in the AP orientation, compared to dorsoventral orientation or to either orientations more anteriorly in the embryo. …”
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  8. 68

    TYPOCHEMISTRY OF MAGNETITE FROM MASSIVE SULFIDE AND IRON DEPOSITS OF THE URALS ACCORDING TO LA-ISP-MS DATA by V.V. Maslennikov, N.R. Ayupova, A.S. Tseluyko, N.P. Safina, D.A. Artemyev, U.A. Yatimov, S.I. Bryukhov, P.V. Khvorov, M.A. Rassomakhin

    Published 2025-12-01
    “…It is established using laser ablation inductively coupled plasma mass spectrometry (LA-ICPMS) that, in contrast to magnetite of iron deposits, magnetite of ore-controlling volcanosedimentary horizons of the Urals massive sulfide deposits is characterized by a higher content and stable associations of Bi, Te, Co, As, Cd, Zn, Cu and Mo due to relict inclusions of sulfide clasts and products of their halmyrolysis. …”
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  9. 69

    Visualizing and quantifying biomineral preservation in fossil vertebrate dental remains by Matthew B. Cowen, Marc de Rafélis, Loïc Ségalen, Benjamin P. Kear, Maïtena Dumont, Živilė Žigaitė

    Published 2025-01-01
    “…Tissue-selective REE values have been obtained using laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS), indicating areas of potential REE enrichment, combined with cathodoluminescence (CL) analysis. …”
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  10. 70

    Reliable Atom Probe Tomography of Cu Nanoparticles Through Tailored Encapsulation by an Electrodeposited Film by Aydan Çiçek, Florian Knabl, Maximilian Schiester, Helene Waldl, Lidija D. Rafailović, Michael Tkadletz, Christian Mitterer

    Published 2024-12-01
    “…In-plane and cross-plane APT specimens were prepared by femtosecond laser ablation and focused ion beam milling. Longer deposition times resulted in agglomerated nanoparticles as well as pores and voids, causing poor adhesion and specimen failure. …”
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  11. 71

    Model to Simulate Brain Biopsies Using a Navigated Robotic Guiding System and a Bone Cutting Laser by Tu Ha Thanh, Luder Yann, Röthlisberger Michel, Schicker Martina, Morawska Marta, Cordier Dominik

    Published 2024-09-01
    “…A small skin incision is performed to reach the area of bone where the laser ablates the bone for the biopsy. Preliminary experimental results suggest that the combined use of laser ablation and a guidance device enables precise bone ablation and accurate needle guidance for biopsies. …”
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  12. 72

    Sub-millimeter fiberscopic robot with integrated maneuvering, imaging, and biomedical operation abilities by Tieshan Zhang, Gen Li, Hao Ren, Liu Yang, Xiong Yang, Rong Tan, Yifeng Tang, Dong Guo, Haoxiang Zhao, Wanfeng Shang, Yajing Shen

    Published 2024-12-01
    “…Through ex vivo trials, we validate the robot’s practicality in navigating constrained channels, such as the lung end bronchus, and executing multifunctional operations including sampling, drug delivery, and laser ablation. The proposed submillimeter continuum robot marks a significant advancement in developing biomedical robots, unlocking numerous potential applications in biomedical engineering.…”
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  13. 73

    Thermal ablation for the treatment of malignant thyroid nodules: present and future by Yan Hu, Wei Zhou, Shangyan Xu, Wanru Jia, Guiping Zhang, Yuan Cao, Qianru Zhang, Lu Zhang, Weiwei Zhan

    Published 2024-12-01
    “…However, the advent and evolution of thermal ablation (TA) techniques, encompassing radiofrequency ablation, laser ablation, and microwave ablation, have emerged as a novel therapeutic avenue for patients with MTC, particularly for those deemed unsuitable for surgery due to high risks or for those who refuse surgery. …”
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  14. 74

    A Comprehensive Strategy for Laser Corneal Refractive Surgery during the COVID-19 Epidemic in a Tertiary Teaching Hospital in Wenzhou, China by Jia Zhang, Ioannis M. Aslanides, Vasileios Selimis, Nan-Ji Lu, Wei-Jie Liu, Hong-Xiao Jiang, Chao Zhang, Chen-Chen Xu, Qin-Mei Wang, Jia Qu, Shi-Hao Chen

    Published 2020-01-01
    “…The comprehensive protection protocol, which was established throughout the entire process, included both horizontal (medical staff-patient, medical staff-medical staff, and patient-patient) and vertical (preoperative, intraoperative, and postoperative transmission assessment) approach and was mainly focused on strengthening the protection against potential aerosol transmission that may occur during intraocular pressure measurements and laser ablation. The described and proposed protocol, along with the further guidelines followed by the medical personnel, proved to be efficacious and contributed significantly to the control of the COVID-19 outbreak and the protection of both the patients and the medical staff.…”
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  15. 75

    Quantitative Analysis and Band Gap Determination for CIGS Absorber Layers Using Surface Techniques by Yun Jung Jang, Jihye Lee, Kang-Bong Lee, Donghwan Kim, Yeonhee Lee

    Published 2018-01-01
    “…The compositional information was obtained by X-ray fluorescence (XRF), inductively coupled plasma atomic emission spectroscopy (ICP-AES), and femtosecond laser ablation inductively coupled plasma mass spectrometry (fs-LA-ICP-MS). …”
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  16. 76

    Preparation and Protective Performance of High-Reflection and High-Thermal Insulation Laser Protection Coatings by LI Shuwen, WU Lingfeng, YANG Guanjun, CHEN Lin

    Published 2024-12-01
    “…Laser weapons have entered the actual combat application stage, and the research on anti-laser protection for air and space weapons is becoming increasingly urgent.Prolonged high-energy laser irradiation leads to problems such as reduced metal reflectance,mass loss of ablated layer of the ablative layer and insufficient heat insulation toughness.Based on this,a composite laser protection strategy based on the principles of reflection and heat insulation was proposed.In this study, by adjusting spraying power, spraying distance and other parameters, supersonic flame spraying technology and plasma spraying technology were used to prepare NiCoCrAlTaY bond coating and yttria-stabilized zirconia(YSZ) top coating double-layer coatings, to explore the influence of surface roughness and porosity on reflectivity, and to investigate the laser protection performance of the coatings.Results showed that the larger the spraying power or spraying distance, the more obvious the layer effect, and the more cross-sectional pores were observed in the coating.The surface roughness of the coating decreased first and then increased with the increase in spraying distance.When the secondary reflection structure was removed, the coating surface had Ra=1.8 μm.When Ra=0.5 μm, the wedge-shaped structure of the coating increased the reflectivity by about 2.4%compared to that of the coating when Ra=1.8 μm.It was pointed out that the layered pores were key to the high-reflection wedge structure, the spherical voids were the laser absorption points,and the process parameter of 14.7%porosity (39 kW,100 mm) was the best.In the laser ablation experiment,with the increase in laser power density, the cracks in the coating gradually increased until holes were ablated.The line ablation rate increased approximately in a parabolic manner.With low laser power density (<3 800 W/cm2), the surface structure changed slightly; as the power increased, the surface cracks increased and deepened, and the petal-like structure in the recondensing zone increased.With high laser power density (>8 050 W/cm2), partial peeling and ablation of the coating surface caused the coating to fail.…”
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  17. 77

    Sc-doped GeTe thin films prepared by radio-frequency magnetron sputtering by Marek Bouška, Jan Gutwirth, Kamil Bečvář, Vladimír Kucek, Stanislav Šlang, Petr Janíček, Lubomír Prokeš, Josef Havel, Virginie Nazabal, Petr Němec

    Published 2025-01-01
    “…Different characterization techniques (scanning electron microscopy with energy-dispersive X-ray analysis, X-ray diffraction, atomic force microscopy, sheet resistance temperature-dependent measurements, variable angle spectroscopic ellipsometry, and laser ablation time-of-flight mass spectrometry) were used to evaluate the properties of as-deposited (amorphous) and annealed (crystalline) Ge-Te-Sc thin films. …”
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  18. 78

    Green synthesis of silver and gold nanoparticles using quercetin extracted from Arctium lappa by HPLC, Characterization and Estimation of antioxidant activity by Mahmood Zaki Lafta, Rafah Razooq Hameed Al-Samarrai, Mohamed Bouaziz

    Published 2025-01-01
    “…Quercetin was purified using hydrolysis and crystallization before being characterized using HPLC, UV–Vis, FTIR, and NMR methods. Laser ablation was used to synthesize AuNPs and AgNPs, with extracted quercetin acting as a reducing agent. …”
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  19. 79

    Unusual open-system behaviour revealed by LA-MC-ICP-MS U–Th dating of coral and coralline algae bio-carbonates by Condomines, Michel, Bruguier, Olivier, Hajji, Inès, Zaara-Ben Mosbah, Chedia

    Published 2023-06-01
    “…This paper presents new U–Th ages obtained by LA-MC-CP-MS (laser ablation - multi-collector - inductively coupled plasma - mass spectrometry) on coral samples from a sedimentary core of the Tunis lagoon. …”
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  20. 80

    Impact of a synchronous prophylactic treatment of the anterior accessory saphenous vein on the recurrent varicose vein rate in patients undergoing thermal ablation of an insufficie... by Lorenz Uhlmann, Christine Fink, Karsten Hartmann, Thomas Mattausch, Hans-Christian Wenzel, Phillip Zollmann, Jürgen Veltman, Thomas Weiler, Guido Lengfellner, Lars Müller, Markus Stücker, Felizitas Pannier, Carmen Dietrich, Tobias Hirsch

    Published 2022-06-01
    “…Introduction To date, there are no prospective studies evaluating the prevention of recurrent veins by the simultaneous treatment of a sufficient anterior accessory saphenous vein (AASV) in patients undergoing endovenous laser ablation (EVLA) of an insufficient great saphenous vein (GSV). …”
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