Laser ablation
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Acute cardiac tamponade is a rare event during any type of interventional or surgical procedure. It can occur during electrophysiology procedures due to radiofrequency ablation, lead or catheter manipulation, transseptal puncture, laser lead extractions, or left atrial appendage occlusion device positioning.
6p vitiki 30-01-2024 3 2 Download
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Ebook "Laser-generated functional nanoparticle bioconjugates: Design for application in biomedical science and reproductive biology" discusses the structure-function relationship of nanoparticle conjugates derived from a laser-based fabrication method. Both the limits and perspectives of tunable conjugate functions are presented, providing a general outline for researchers to configure functionalized nanoparticles with a specifically optimized design for biomedical requests, e.g. in biomedical engineering regenerative science and reproductive biology.
317p lamquandat 28-12-2023 2 2 Download
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Part 1 book "Advances in equine upper respiratory surgery" includes content: Recurrent laryngeal neuropathy - grading of recurrent laryngeal neuropathy; recurrent laryngeal neuropathy - diagnosis, dynamic endoscopy; ultrasonography of the larynx for the diagnosis of recurrent laryngeal neuropathy; laser ventriculocordectomy, prosthetic laryngoplasty; biomechanics of prosthetic laryngoplasty, ablation of the cricoarytenoid joint, the use of partial arytenoidectomy in the management of recurrent laryngeal neuropathy,... and other contents.
154p oursky08 06-11-2023 6 4 Download
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Glioblastoma (GBM) is the most common primary, malignant brain tumour with a 5-year survival of 5%. If possible, a glioblastoma is resected and further treated with chemoradiation therapy (CRT), but resection is not feasible in about 30% of cases. Current standard of care in these cases is a biopsy followed by CRT.
8p vioracle 29-09-2023 4 2 Download
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Conventional rigid optical-electronic systems need to be improved to adapt to the current food quality monitoring. This paper aims to propose and develop a flexible wearable optical wireless sensing system (FWOS) by laser ablation of polyethylene terephthalate/polyimide/copper (PET/PI/Cu) film.
8p viberbers 09-08-2023 4 3 Download
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Gold (Au) and silver (Ag) nanoparticles were synthesized by laser ablation in water. The average sizes of Au and Ag nanoparticles are of 18.4 nm and 21.8 nm, respectively. ZnS:Mn2+ nanoparticles with average size of 3-5 nm were prepared by co-precipitation method.
8p viberkshire 09-08-2023 5 4 Download
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We observed the formation of damage induced by focusing a nanosecond laser beam inside a glass block using the shadowgraph imaging technique. The damage growth was observed during some first dozens of nanoseconds of the process. The result shows that the damage growth is divided into two periods. During the laser pulse, the damage grows quickly, following the formation of laser-induced plasma. When the laser is switched off, the damage grows at a much slower rate. We propose that the growth of damage during the second period is due to the propagation of the shear wave inside the material.
4p nhanchienthien 25-07-2023 4 3 Download
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The benefits of pulsed laser ablation in advanced manufacturing have been studied in terms of intensity, adequate orientation, damped noise, and great adaptability. During ultrashort laser ablation, the interaction between a copper surface and numerous pulses was explored to establish ideal focusing conditions.
7p vihawkeye 26-05-2023 7 2 Download
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Photoelasticity images of pulsed laser ablation in water and in air were simulated by Finite Element Method. In the paper "Compare transient stress induced in in-air and in-water laser ablation using simulation method", the Von Mises stress distribution in the target is deduced from the simulated images and is compared between the two-ablation regimes. The result confirms that pulse laser ablation in the water can induced a stress about 100 times higher than that induced in ablation in the air.
4p runordie2 06-06-2022 10 0 Download
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In the paper "Shock waves emitted at the collapse of a laser-induced cavitation bubble in the vicinity of a free surface", we investigated the dynamic of a cavitation bubble induced by laser ablation in liquid in the vicinity of a free surface. The observation was conducted using high-speed laser stroboscopic videography in photoelasticity mode. We showed the bubble contracted faster in the vertical direction and formed a flat bubble at the minimum contraction. At the collapse, the bubble emitted multiple shock waves.
4p runordie2 06-06-2022 7 2 Download
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In this study, rhenium/rhenium oxide nanoparticles (Re/ReO3NPs) have been produced for the first time in ultrapure water by using Femtosecond Pulsed Laser Ablation in Liquid (fsPLAL) method. X-Ray Diffraction (XRD) measurements and results obtained for NPs show the existence of well-crystallized peaks and preferred phases. Re NPs have hexagonal structure while ReO3 NPs have the perovskite-like cubic crystal structures. The Re/ReO3 ratio is also determined to be 53/47 with ~ 20 nm crystallite size, while pure ReO3 crystallite sizes were measured to be ~ 25 nm.
8p tudichquannguyet 29-11-2021 8 1 Download
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In this study, we observed the evolution of a cavitation bubble induced by focusing a nanosecond-pulsed laser on an epoxy-resin surface using a photoelasticity imaging technique. The radius-time curve of the bubble within the first 1000 ns was reported for different pulse energies from 20 to 60 mJ. The result showed that the bubble expanded faster at higher laser energy but followed a simple rule R~at0.3
3p nguaconbaynhay12 01-06-2021 7 1 Download
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The secondary shock emitted at the collapse and rebound of a laser-induced cavitation bubble was studied directly and visually by the photoelasticity imaging technique. The result shows the image of the pressure wave transmitted into the solid target due to the impact of the secondary shock. From the observation, we recommend that the secondary shock is quite strong and homogeneous, thus can be utilized to provide additional machining effect to the laser ablation process.
4p kethamoi10 21-01-2021 23 3 Download
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The development of the craniofacial skeleton from embryonic mesenchyme is a complex process that is not yet completely understood, particularly for intramembranous bones. This study investigates the development of the neural crest derived infraorbital (IO) bones of the zebrafish (Danio rerio) skull.
13p vimariana2711 22-12-2020 8 1 Download
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The high sensitivity of the AuNPs/Si substrates was confirmed by the SERS spectra of malachite green detected with high quality at concentrations of 0.1ppm. The SERS substrates can detect SERS spectra of tetracycline at low concentrations of around 1ppm.
8p tamynhan6 14-09-2020 11 1 Download
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We characterized their shape and morphology using transmission electron microscopy (TEM), and confirmed their crystalline structure with X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM) in combination with energy-dispersive X-ray spectroscopy (EDX) elemental mapping.
9p tamynhan4 06-09-2020 11 1 Download
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Treatment with the combination of ureteroscopy and thulium laser ablation may provide an alternative to radical nephroureterectomy (RNU) for patients with upper tract urothelial carcinoma (UTUC). The purpose of this study was to investigate the efficacy and safety of this technique.
4p vibaku2711 22-07-2020 11 1 Download
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Photoelastic images of pulsed laser ablation in glass and epoxy-resin were simulated by Finite Element Method. A comparison between simulation and experimental results obtained at 10 mJ laser ablation showed that the simulation program was able to reconstruct the laser ablation process inside transparent materials.
5p viputrajaya2711 22-06-2020 14 2 Download
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Photoelastic images of pulsed laser ablation in liquid were simulated by Finite Element Method. The real stress distribution in the target was deduced from the photoelastic images. The simulation result can represent to some extend the photoelastic images taken by the experiment.
6p viputrajaya2711 22-06-2020 21 0 Download
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In this work, the equipment was used to investigate the distribution of lithium (7Li) and boron (11B) in the outer oxide at the bow contact area. Depth profiling in the clad oxide at the opposite side of the rod to the point of contact, which is considered to have experienced normal operating conditions and which has a typical oxide thickness, evidenced levels of ∼10–20 ppm 7Li and a 11B content reaching hundreds of ppm in the outer parts of the oxide, largely in agreement with the expected range of Li and B clad oxide concentrations from previous studies.
9p christabelhuynh 30-05-2020 4 1 Download