نتایج جستجو برای: excimer

تعداد نتایج: 3009  

Journal: :Ophthalmologica. Journal international d'ophtalmologie. International journal of ophthalmology. Zeitschrift fur Augenheilkunde 2008
Kevin Taliaferro

ous fluid by producing 0.5-mm holes. There is no reference given to this observation, therefore it is not clear how this observation was determined. The article states that the laser fiber is 200  m. It is unclear how this would create 500m ostia. On page 286, an aiming beam is mentioned in the Surgical Technique section. However, unless the AIDA laser system has been modified, and this is not...

2005
John A. Bittl Timothy A. Sanborn

Background. Excimer laser coronary angioplasty has been reported to be a promising treatment for complex coronary artery disease. The purpose of this study was to define the predictors of acute success and restenosis after this experimental intervention. Methods and Resuls. A cohort of 200 consecutive patients had a minimum of 6 months of follow-up evaluation after treatment of 215 coronary ste...

Journal: :Applied optics 1992
B Shirinzadeh M E Hillard R J Balla I A Waitz J B Anders R J Exton

Planar Rayleigh scattering measurements with an argon-fluoride excimer laser are performed to investigate helium mixing into air at supersonic speeds. The capability of the Rayleigh scattering technique for flow visualization of a turbulent environment is demonstrated in a large-scale, Mach-6 facility. The detection limit obtained with the present setup indicates that planar, quantitative measu...

Journal: :بینا 0
امیر فرامرزی a faramarzi تهران- پاسداران- خیابان امیر ابراهیمی- نبش بوستان نهم- پلاک 5- مرکز تحقیقات چشم محمدعلی جوادی ma javadi تهران- پاسداران- خیابان امیر ابراهیمی- نبش بوستان نهم- پلاک 5- مرکز تحقیقات چشم

infectious keratitis occurs rarely after laser refractive surgery, however the high volume of these procedures and young patient age render the prevention, diagnosis and treatment of this complication of utmost importance. early onset infectious keratitis is usually caused by gram positive bacteria while late onset cases are due to other microorganisms such as atypical mycobacteria, nocardia as...

2005
Ulrich Kogelschatz

Excimers, known from electron beam experiments and UV lasers, can also fomi in silent discharges, a discharge type used for large-scale ozone production. In this high pressure non-equilibrium discharge a dielectric barrier leads to the formation of localized short-lived microdischarges. Inside the microdischarge filaments energetic electrons can excite rare gas (RG) atoms which, under appropria...

Journal: :Journal of the American College of Cardiology 1995
S Strikwerda E M van Swijndregt R Melkert P W Serruys

OBJECTIVES Coronary lumen changes during and after excimer laser-assisted balloon angioplasty were measured by quantitative coronary angiography, and the results were compared with the effects of balloon angioplasty alone. BACKGROUND Reduction of atherosclerotic tissue mass by laser ablation in the treatment of coronary artery disease may be more effective in enlarging the lumen than balloon ...

Journal: :Photomedicine and laser surgery 2009
Steven Paul Nisticò Rosita Saraceno Caterina Schipani Antonio Costanzo Sergio Chimenti

BACKGROUND Ultraviolet radiation has been used for curative purposes in dermatologic conditions, especially in the last 30 years. OBJECTIVES We analyzed the efficacy of monochromatic excimer light in psoriasis, palmoplantar pustulosis, vitiligo, mycosis fungoides and alopecia areata, and to examine potential new indications. METHODS Two hundred seventy-nine patients with common and persiste...

Journal: :Npg Asia Materials 2022

Abstract Flexible transparent electrodes on flexible plastic sheets are in significant demand for use perovskite solar cells ( f -PSCs). However, the combination of broadband high optical transparency and low electrical resistivity required tandemization -PSCs sets a stringent requirement that based traditional Sn-doped In 2 O 3 (ITO) films, owing to free-carrier concentration needed reduce res...

2014
Jorge Alio

Refractive surgery, both corneal and intraocular, has undergone an explosive evolution during the last 25 years. The first excimer laser surgery performed now already over 25 years ago is a historical landmark which started the scientific age of corneal refractive surgery. Before that momentous occasion, refractive surgery was a buccaneer procedure that lacked consistent scientific knowledge ab...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2014
Shaohua Chen Jean Duhamel Baoliang Peng Masuduz Zaman Kam C Tam

The interactions between a series of poly(ethylene oxide)s covalently labeled at both ends with pyrene pendants (PEO(X)-Py2, where X represents the number-average molecular weight of the PEO chains and equals 2K, 5K, 10K, and 16.5K) and an ionic surfactant, namely, sodium dodecyl sulfate (SDS), in water were investigated at a fixed pyrene concentration of 2.5 μM corresponding to polymer concent...

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