نتایج جستجو برای: laser vaporization

تعداد نتایج: 184680  

Journal: :Journal of the American Society for Mass Spectrometry 2006
Zhongke Wang Bodo Hattendorf Detlef Günther

The dependence of analyte sensitivity and vaporization efficiency on the operating parameters of an inductively coupled plasma mass spectrometer (ICPMS) was investigated for a wide range of elements in aerosols, produced by laser ablation of silicate glass. The ion signals were recorded for different carrier gas flow rates at different plasma power for two different laser ablation systems and c...

Journal: :Neurologia medico-chirurgica 1977
T Takizawa

Thermal effects on the brain, spinal cord and muscles were studied in electrocoagulation and laser photocoagulation. The experiments were performed on cats and rabbits. The monopolar and bipolar electrodes of the electrosurgical unit were applied to the tissues in comparison with the carbon dioxide laser surgical unit. The experiments were divided into the following two groups: 1) Morphological...

Journal: :Archives of dermatology 1999
C Beier R Kaufmann

BACKGROUND Among different surgical approaches, dermabrasion and carbon dioxide laser vaporization have been used to treat Hailey-Hailey disease (HHD) (familial benign chronic pemphigus) and Darier disease (DD) (keratosis follicularis), with various results. Because of the erbium: YAG laser's unique absorption characteristics in tissue water, erbium:YAG laser ablation combines the advantages of...

2016
Mary Matthews François Pomel Christiane Wender Alexei Kiselev Denis Duft Jérôme Kasparian Jean-Pierre Wolf Thomas Leisner

We investigate the interaction of ultrashort laser filaments with individual 90-μm ice particles, representative of cirrus particles. The ice particles fragment under laser illumination. By monitoring the evolution of the corresponding ice/vapor system at up to 140,000 frames per second over 30 ms, we conclude that a shockwave vaporization supersaturates the neighboring region relative to ice, ...

Journal: :Asian journal of andrology 2013
Jian Zhuo Shu-Jie Xia

T wo-mm thulium laser has become widely accepted because of the resultant excellent homeostasis and rapid vaporization in prostatectomy. It is necessary for us to increase the surgical efficiency because of increasing numbers of larger-sized, elderly and high-risk BPH patients. We have made efforts to achieve this goal through continued improvement of the 2-mm thulium laser equipment, innovativ...

Journal: :Journal of endourology 2015
Mauricio Plata Carlos G Trujillo Cristina Domínguez Juan Ignacio Caicedo Gabriel Leonardo Carreño Angela M Mariño Alvarez Natalia Hernandez Juan G Cataño

OBJECTIVES To determine safety, efficacy, and improvement in patient's quality of life (QoL) with 180-W green light laser prostate photovaporization in medium-term follow-up. METHODS Observational descriptive analysis. All the patients who were treated with photoselective vaporization with potassium titanyl phosphate crystal 180-W green laser between January 2012 and February 2014 were includ...

Journal: :Koloproktologiâ 2022

AIM: to assess the learning curve of implementation laser vaporization for hemorrhoids. PATIENTS AND METHODS: was performed by one surgeon 378 patients, which had no personal experience this technique before. CUSUM method used analyze duration training period. RESULTS: two-fold decrease negative results percentage obtained after 40 procedures. During period, 7 (17.5%) unfavorable outcomes were ...

2003
David L. Robbins Chen-Sheng Yeh Michael A. Duncan

Electronic spectra are reported for the metal cluster (Tef) and metal cluster complex (Ag+-benzene, Mg'-C02) cations. These ions are generated by laser vaporization in a pulsed nozzle source, jet-cooled, mass-selected with a reflectron time-of-flight spectrometer, and dissociated on resonance with a tunable dye laser. Electronic excitation spectra are recorded by monitoring the appearance of th...

2016
Neila Maria de Góis Speck Karol Pereira Ruela Boechat Georgia Mouzinho Lima dos Santos Julisa Chamorro Lascasas Ribalta Neila Maria de Góis Speck Karol Pereira Ruela Boechat Georgia Mouzinho Lima dos Santos Julisa Chamorro Lascasas Ribalta

OBJECTIVE To describe the results of treatment with CO2 laser for Bartholin gland cysts. METHODS Thirty-one women with Bartholin gland cysts were treated with CO2laser at an outpatient´s setting. Skin incision was performed with focused laser beam, the capsule was opened to drain mucoid content, followed by internal vaporization of impaired capsule. RESULTS There were no complications. Five...

2015

A. Alpha adrenergic blockers (alfuzosin, doxazosin, silodosin, tamsulosin, and terazosin) B. Hormonal manipulation (including finasteride, dutasteride, and dutasteride plus tamsulosin) C. Interstitial laser coagulation of the prostate (ILCP) D. Laser prostatectomy E. Laser based procedures including contact laser ablation of the prostate (CLAP), holmium laser procedures of the prostate (HoLAP, ...

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