نتایج جستجو برای: yag lasers
تعداد نتایج: 26122 فیلتر نتایج به سال:
In the present work, four polymeric nanocomposite PNC coatings were prepared with different concentrations of yttrium aluminum garnet nanoparticles YAG-NPs in polyvinyl butyral PVB matrix. The corrosion protection of the PNC coatings applied on the carbon steel surface was investigated in 1.0 M HCl solution by electrochemical impedance spectroscopy EIS. The YAG-NPs were synthesized by pulse ele...
BACKGROUND Transmyocardial laser revascularization (TMR) is an emerging treatment for end-stage coronary artery disease. A variety of lasers are currently available to perform the procedure, although their relative efficacy is unknown. The purpose of this study was to compare changes in myocardial blood flow and function 6 months after TMR with holmium:yttrium-aluminum-garnet (holmium:YAG), car...
introduction: the aim of this study was to evaluate the effect of dental surface treatment with erbium-doped yttrium aluminum garnet(er: yag), neodymium-doped yttrium aluminium garnet(nd: yag) and carbon dioxide laser (co 2 ) lasers and sodium ascorbate to recently home bleached enamel by scanning electron microscope (sem). methods: thirty extracted human third molars were selected for this in...
Background: To analyse the rate of complications associated with Nd YAG posterior capsulotomy. Methods: This prospective clinical study was conducted in Holy Family Hospital over a six-month period. It included five hundred and fifty patients in out door Eye Department, Holy Family Hospital treated with Nd YAG laser capsulotomy due to posterior capsular opacification after cataract surgery. The...
Background: Ablative laser treatment is widely used in dermatology. Different laser types are available. In contrast to that, the medical publication on erbium-YAG laser in dermatology often include small samples only. Objective: We want to demonstrate the versatility of classical erbium-YAG laser for medical conditions in dermatology in a single-center study. Materials and methods: This is a r...
Photodynamic therapy (PDT) utilizing Photofrin is proving to be effective for the treatment of early stage lung cancers. The effect of PDT utilizing YAG-OPO laser as new light source was evaluated in 26 patients (29 lesions) with early stage lung cancers. YAG-OPO laser is solid state tunable laser which is easy to change wavelength between 620 and 670 nm exciting various kinds of photosensitize...
Posterior capsular opacification Yag laser PCIOL Pupil Visual acuity Cataract is one of the most leading cause of curable blindness all over world. In the developing word most popular method of cataract operation is extra capsular cataract extraction (ECCE) with posterior chamber into ocular lens in plantation eye (PCIOL) by Various Methods. This hold true for our county and Rajasthan state too...
در این تحقیق ایتریم- آلومینیم شامل فلز های لانتانید در مقیاس نانو به وسیله ی روش سل-ژل سنتز شد و سیتریک اسید به عنوان عامل کمپلکس ساز مورد استفاده قرار گرفته است. لانتانیم، سریم و سامریم برای سنتز yag: m3+ استفاده شده است. پودر های تهیه شده به وسیله ی پراش x-ray پودری، شناسایی شده و توزیع اندازه ذرات و مورفولوژی نمونه ها توسط میکروسکوپ الکترونی روبشی(sem) مورد بررسی قرار گرفته است. نتایج xrdنشا...
We report on the design and output performances of a diode pumped, high-peak power Nd:YAG/Cr 4+ :YAG laser with four-beam output. The system posses the ability to chose independently the focus of each laser beam, being seen as a solution for a laser spark with multiple-point ignition. The laser ignition of a gasoline direct injected engine has several advantages in comparison with ignition by e...
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