نتایج جستجو برای: carbon dioxide laser pulse

تعداد نتایج: 565177  

2012
Hyeong-Seok Oh Jin-Sung Kim

The carbon dioxide (CO2) laser was first introduced in 1964 by Patel and has been extensively used in the next two decades as an incision tool in increasingly wide areas, such as neurosurgery, dermatology and plastic surgery, otorhinolaryngology, ophthalmology, gynecology, and general surgery. In 1984, its reliability resulted in its approval by the U.S. Food and Drug Administration, and thus, ...

Journal: :Optics express 2011
Paul J Wrzesinski Dmitry Pestov Vadim V Lozovoy James R Gord Marcos Dantus Sukesh Roy

The use of femtosecond-laser sources for the diagnostics of combustion and reacting-flow environments requires detailed knowledge of optical dispersive properties of the medium interacting with the laser beams. Here the second- and third-order dispersion values for nitrogen, oxygen, air, carbon dioxide, ethylene, acetylene, and propane within the 700-900 nm range are reported, along with the pr...

Journal: :Journal of the Royal Society of Medicine 1980

2014
Aritra Sengupta Sean C. Kelly Nishant Dwivedi Naresh Thadhani Mark R. Prausnitz

Conventional physical and chemical methods that efficiently deliver molecules into cells are often associated with low cell viability. In this study, we evaluated the cellular effects of carbon nanoparticles believed to emit photoacoustic waves due to nanosecond-pulse laser activation to test the hypothesis that this method could achieve efficient intracellular delivery while maintaining high c...

2016
Pedro Vitale Mendes Marcelo Park Alexandre Toledo Maciel Débora Prudêncio e Silva Natalia Friedrich Edzangela Vasconcelos Santos Barbosa Adriana Sayuri Hirota Guilherme Pinto Paula Schettino Luciano Cesar Pontes Azevedo Eduardo Leite Vieira Costa

BACKGROUND Extracorporeal membrane oxygenation (ECMO) is a technique widely used worldwide to improve gas exchange. Changes in ECMO settings affect both oxygen and carbon dioxide. The impact on oxygenation can be followed closely by continuous pulse oximeter. Conversely, carbon dioxide equilibrates much slower and is not usually monitored directly. METHODS We investigated the time to stabiliz...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه زنجان 1387

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