نتایج جستجو برای: chemical laser

تعداد نتایج: 554685  

2002
Ahmed H. Zewail

Ultrafast laser spectroscopy has extended reaction-dynamic studies into the dcosecond and femtosecond time domain. allowing for experimintal observations of transitory fragments that occur during collision or half-collision. This ability to observe molecular reactions allows real-time viewing of energy redistributions, measurements of state-to-state rates, and tests of microscopic statistical t...

2008
William W. Cimino

Suction-Based Technologies • Liposuction or Suction-Assisted Lipoplasty (SAL) • Power-Assisted Lipoplasty (PAL) Ultrasound-Based Technologies • Internal Ultrasound-Assisted Lipoplasty (IUAL) • VASER-Assisted Lipoplasty (VAL) • External Ultrasound-Assisted Lipoplasty (EUAL) • Transdermal Ultrasound-Assisted Lipoplasty (TUAL) Laser-Based Technologies • External Laser-Assisted Lipoplasty (ELAL) • ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده کشاورزی 1394

with the increasing population and the need for more food, as well as with the development of science and technology, human approach to unnatural and often chemical inputs to increase agricultural production has been a great expansion and problems such as increased cancers, chronic diseases has created environmental pollution. implementation of organic organic is a solution to these problems . ...

Journal: :Aesthetic surgery journal 2005
Anthony C Griffin

The author provides his perspective on resurfacing procedures in dark-skinned patients, advising a cautious approach to laser resurfacing. Laser complications in Fitzpatrick skin types III to VI, including hyperpigmentation, hypopigmentation, and scarring, are well documented. Unlike chemical peeling and dermabrasion, with laser resurfacing, preoperative treatment does not control postoperative...

1999
C. P. WANG

Intense laser emission has been observed from the KrF molecule formed by a chemical reaction initiated by fast-discharge circuitry. With a gas mixture of He:Kr:NF, = 500:50:1 and a sample pressure of 700 Torr, an output energy of 0. 8 mj was measured from a 25-nsec laser pulse (FWHM). Spectral analysis of the laser emission indicated laser action at 248.5 and 249.5 nm.

پایان نامه :دانشگاه آزاد اسلامی واحد علوم پزشکی تهران - دانشکده علوم پزشکی 1389

هدف: این مطالعه به منظور بررسی میزان اثربخشی fractional co2 laser در درمان اسکار انجام شده است. روش مطالعه: این مطالعه به صورت یک clinical case series انجام شده است. حجم نمونه مورد بررسی شامل 81 بیمار مبتلا به اسکار بود که طی سال 1388 جهت درمان به کلینیک های درماتولوژی در سطح شهر تهران مراجعه نموده بودند.یافته ها: میانگین میزان پاسخ به درمان در هر جلسه لیزردرمانی 26/29 درصد بود. 20 نفر (7/24 د...

ژورنال: مجله دندانپزشکی 2002
سراج, بهمن , پاسدار, نیلگون , کوثری, علی ,

Due to the differences in the composite and morphology of dentin in primary and permanent teeth, it is necessary to make improvements in bonding techniques to promote the strength of composite resins bonded to the dentinal surface, in primary teeth. The use of lower radiation, to make structural and chemical changes in dentinal surfaces has been investigated. This research was conducted to eval...

Journal: :The Review of Laser Engineering 1984

2016
J. Wang J. Finzi P. Baily K. Hui G. Holleman

Wavelength-agile, single and multiline laser radiation has been obtained from a subsonic gas flow system which is optically pumped with a multiline chemical laser. This optical resonance transfer laser (ORTL) concept was first demonstrated on the 10.6pm DF/C02 system in 1976, Since then, several IR laser pumped molecular lasers have been demonstrated. The pump laser is either a cw HF or DF chem...

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