نتایج جستجو برای: laser targeting

تعداد نتایج: 330653  

Low and stable inflation rates are essential to promote economic growth and welfare of the people. Therefore, many countries pursue their policies within the framework of inflation targeting to achieve low and stable inflation rates. Monetary policy implementation based on inflation targeting is a framework that has been adopted by many countries since 1990. To implement such framework, a serie...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2021

Although ultrafast manipulation of magnetism holds great promise for new physical phenomena and applications, targeting specific states is held back by our limited understanding how magnetic correlations evolve on timescales. Using resonant inelastic x-ray scattering we demonstrate that femtosecond laser pulses can excite transient magnons at large wavevectors in gapped antiferromagnets, they p...

اخیانی, مینا, جهانگیری, فاضل, رضایی پندری, محمد, مسعودی, رضا, نیکنام, علیرضا,

In this paper, electron acceleration in the field of laser pulse is investigated. To limit the interaction region for electron pulse, which is required for acceleration, a new method is presented based on the injection of electron on temporal peak of the laser pulse. In this method, the electron is provided by a plasma source and is steered inside the laser field by utilizing the magnetic field...

Introduction: To present and assess a newly designed autoclavable, reusable tube shield for an endotracheal tube (ETT) during laser laryngeal surgery.   Materials and Methods: This study included patients scheduled for endolaryngeal laser surgery. A carbonated stainless-steel hemisphere shield (~1.5×0.6 mm) connected to a silk thread passing through a hole in its middle near upper edge was ...

ژورنال: مجله دندانپزشکی 2015
داوودمنش, زینب, سناعی, فهیمه سادات, شمس, فرشید, عزیزی, نسیم, پیمانی, علی,

Background and Aims: According to concerns of technical errors in intraoral radiographs and reports of positive effects of central ray laser pointer on the students, technical errors and shortcomings of earlier research, this study was conducted at Department of Oral and Maxillofacial Radiology of Tehran Azad University to determine the role and use of laser pointer in the technical error mad...

In the present work, a theoretical analysis of the first-order of stimulatedBrillouin scattering (SBS) in a double-clad (DC) ytterbium (Yb)-doped silica fiber laserin unidirectional pumping mode is presented.An accurate simulation for calculating SBS nonlinearity is performed by considering thecoupled differential rate equations for pump, signal and Stokes powers, as wel...

Journal: :journal of lasers in medical sciences 0
bahareh nazemisalman department of pediatrics, school of dentistry,zanjan university of medical sciences, zanjan, iran mahya farsadeghi school of dentistry, zanjan university of medical sciences, zanjan, iran mehdi sokhansanj school of dentistry, zanjan university of medical sciences, zanjan, iran

laser technology has been recently introduced into the dental field with the idea to replace drilling. having a less painful first dental experience by the use of modern instruments like laser can be an efficient preventive and therapeutic strategy in pediatric dentistry. pedodontists need to learn the new less invasive technologies and adopt them in their routine practice. this study aimed to ...

Journal: :journal of lasers in medical sciences 0
vinay kumar reddy kundoor department of oral medicine and radiology, mamata dental college and hospital, khammam, telangana, india ashwini patimeedi department of oral medicine and radiology, mamata dental college and hospital, khammam, telangana, india shameena roohi department of oral medicine and radiology, mamata dental college and hospital, khammam, telangana, india kotya naik maloth department of oral medicine and radiology, mamata dental college and hospital, khammam, telangana, india sunitha kesidi department of oral medicine and radiology, mamata dental college and hospital, khammam, telangana, india geetha kumari masabattula department of oral maxillofacial pathology, mamata dental college and hospital, khammam, telangana, india

introduction: laser dentistry is a one of the upcoming advanced treatment modality for oral mucosal lesions. diode laser is a soft tissue laser that has found much acceptance in all branches of dentistry. available compact size and feasibility has render diode laser an enhanced tool for today’s clinical practice. the aim of this study is to determine the efficacy and safety of diode laser for t...

2016
Lih-Rou Rau Wan-Yu Huang Jiunn-Woei Liaw Shiao-Wen Tsai

The specific properties of gold nanoparticles (AuNPs) make them a novel class of photothermal agents that can induce cancer cell damage and even death through the conversion of optical energy to thermal energy. Most relevant studies have focused on increasing the precision of cell targeting, improving the efficacy of energy transfer, and exploring additional functions. Nevertheless, most cells ...

Amanollah Aminzadeh, L.J. Walsh Sima Shahabi

FTR-Raman Spectra of human dental enamel, both laser-irradiated and untreated, are reported. Spectra are compared with hydroxyapatite. It is evident that unlike the CO2 laser, the Nd/YAG laser does not induce any chemical change in dental enamel.

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