نتایج جستجو برای: laser ablation

تعداد نتایج: 224148  

Journal: :Journal of Analytical Atomic Spectrometry 2004

2012
Icpyo Kim Tae-Hyun Nam Ki-Won Kim Jou-Hyeon Ahn Dong-Soo Park Cheolwoo Ahn Byong Sun Chun Guoxiu Wang Hyo-Jun Ahn

LiNi0.4Co0.3Mn0.3O2 thin film electrodes are fabricated from LiNi0.4Co0.3Mn0.3O2 raw powder at room temperature without pretreatments using aerosol deposition that is much faster and easier than conventional methods such as vaporization, pulsed laser deposition, and sputtering. The LiNi0.4Co0.3Mn0.3O2 thin film is composed of fine grains maintaining the crystal structure of the LiNi0.4Co0.3Mn0....

Journal: :Current Biology 2007
Reza Farhadifar Jens-Christian Röper Benoit Aigouy Suzanne Eaton Frank Jülicher

BACKGROUND Epithelial junctional networks assume packing geometries characterized by different cell shapes, neighbor number distributions and areas. The development of specific packing geometries is tightly controlled; in the Drosophila wing epithelium, cells convert from an irregular to a hexagonal array shortly before hair formation. Packing geometry is determined by developmental mechanisms ...

2010
Darina Manova Jürgen W. Gerlach Stephan Mändl

One important recent trend in deposition technology is the continuous expansion of available processes towards higher ion assistance with the subsequent beneficial effects to film properties. Nowadays, a multitude of processes, including laser ablation and deposition, vacuum arc deposition, ion assisted deposition, high power impulse magnetron sputtering and plasma immersion ion implantation, a...

2002
H. Reisler

The reaction of C(3P) with NzO is studied at a collision energy of0.9 f 0.4 eV in a crossed, pulsed molecular beam arrangement using laser ablation for carbon atom production. Nascent CN( X %E+ ) and NO(X %) products are detected by laser-induced fluorescence. In accord with previous studies, the CN (X ‘E+ ) product is found to be vibrationally inverted (maximum at u= 3 ) and possesses substant...

2010
Reza Zamiri Azmi Zakaria Hossein Abbastabar Ahangar Amir Reza Sadrolhosseini Mohd Adzir Mahdi

In this study we used a laser ablation technique for preparation of silver nanoparticles. The fabrication process was carried out by ablation of a silver plate immersed in palm oil. A pulsed Nd:YAG laser at a wavelength of 1064 nm was used for ablation of the plate at different times. The palm coconut oil allowed formation of nanoparticles with very small and uniform particle size, which are di...

2015
Benjamin Bartels Aleš Svatoš

This short review aims to summarize the current developments and applications of mass spectrometry-based methods for in situ profiling and imaging of plants with minimal or no sample pre-treatment or manipulation. Infrared-laser ablation electrospray ionization and UV-laser desorption/ionization methods are reviewed. The underlying mechanisms of the ionization techniques-namely, laser ablation ...

Introduction: Halitosis and foreign body sensation are two common and disturbing symptoms of chronic caseous tonsillitis (CCT). The aim of this study was to compare the efficacy and safety of temperature-controlled radiofrequency (TC-RF) tonsil ablation with CO2-laser cryptolysis (CO2-LC) in the treatment of patients with halitosis caused by CCT.   Materials and Methods: Sixty-two patients who ...

Journal: :Circulation 1999
D Keane J N Ruskin

The catheter maze procedure for the treatment of chronic atrial fibrillation requires the creation of transmural, continuous linear atrial lesions. Attempts to drag a conventional radiofrequency ablation catheter across the atria in clinical as well as experimental studies have resulted in discontinuous lesions. Continuous linear lesions have been most difficult to create in trabeculated atrial...

2007
J. S. Astin R. D. Pilkington A. E. Hill M. Longson T. Robinson

Plasma plumes resulting from Nd:YAG laser ablation of copper and Fecralloy (Fe 72.8%, Cr 22%, Al 5%, Zr trace, Y trace) have been analysed simultaneously with Laser-Induced Breakdown Spectroscopy (LIBS) and Laser Ablation Mass Spectrometry (LAMS). A commercially available Residual Gas Analyser (RGA) was employed to perform mass spectrometric analysis of the neutral and ionic species created dur...

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