Results 81 to 90 of about 17,763 (306)

Schneiden mit dem Excimerlaser, Effekte der Impulsdauer und Impulsfrequenz an der Schnittkante, Qualität der faserverstärkten Polymere und aluminiumhaltigen Keramiken - Aluminiumoxyd

open access: yes, 2022
S.179Cutting of fibre reinforced polymers with lasers gives rise to some problems. The different thermal properties of the fibre and the matrix make it diffcult to achieve cuts with minimal thermal damage at the edges.
Wehner, M., Poprawe, R., Trasser, F.-J.
core  

Ion Activation Methods for Top‐Down Proteomics

open access: yesMass Spectrometry Reviews, EarlyView.
ABSTRACT Mass spectrometry (MS) has emerged as a premier method used to characterize the sequences of proteins. Top‐down proteomics aims to capture the multiple sources of structural diversity reflected in proteins, such as those that arise from alternative RNA splicing events or the addition of post‐translational modifications. Tandem MS (i.e., MS/MS)
Jada N. Walker, Jennifer S. Brodbelt
wiley   +1 more source

Heavy ion beam pumped KrF* excimer laser

open access: yes, 2007
The high energy loss of heavy ions in matter as well as the small angular scattering makes heavy ion beams an excellent tool to produce almost cylindrical and homogeneously excited volumes in matter.
Adonin, Aleksey
core  

Excitation of an excimer laser with microwave resonator

open access: yes, 2022
S.134-139In this work excimer Laser excitation with resonant microwave structures was obtained both for XeCl and KrF. The discharge tube containing the laser gas is placed inside one or several coupled microwave resonators.
Hünermann, L.   +3 more
core  

First 20 Years of Orbitrap Mass Spectrometry as the Mainstream Analytical Technique

open access: yesMass Spectrometry Reviews, EarlyView.
ABSTRACT This review traces the first 20 years of Orbitrap mass spectrometry as a mainstream high‑resolution and accurate‑mass (HR/AM) technology. It outlines the historical development of the Orbitrap analyzer, the evolution of major instrument families, and the key technological innovations that enabled its widespread adoption. Particular emphasis is
Alexander Makarov
wiley   +1 more source

Laser pulse shape dependence of poly-Si crystallization

open access: yesAIP Advances, 2017
Poly-Si crystallization mechanism is examined by conducting numerical simulations, combining the thermal diffusion equation with a rigorous coupled wave analysis method.
Oleg N. Prudnikov   +2 more
doaj   +1 more source

A PLP‐SEC Investigation of Di(Ethylene Glycol) Methyl Ether Methacrylate Radical Polymerization Propagation Kinetics in Solution

open access: yesMacromolecular Reaction Engineering, EarlyView.
The propagation rate coefficient of di(ethylene glycol) methyl ether methacrylate exhibits the same temperature dependency but is a factor of 12 higher in aqueous solution compared to bulk. Smaller increases are observed in ethanol and ethanol/water mixtures, with the value of the rate coefficient decreasing as the monomer concentration in solution is ...
Fatemeh Salarhosseini   +1 more
wiley   +1 more source

اثر Photoreactive keratectomy به کمک دو دستگاه Technolas 217z و Lasersight LSX بر اصلاح عیوب انکساری

open access: yesمجله دانشکده پزشکی اصفهان, 2011
Background: To evaluate refractive, visual, topographic, and wavefront outcome of photorefractive keratectomy (PRK) for treatment of myopia and myopic astigmatism with two different excimer laser systems: Technolas 217z and Lasersight LSX excimer lasers.
Hassan Razmju   +5 more
doaj  

Sources d'Alimentation Électrique pour l'Étude et l'Utilisation Efficace des Lampes Excimer DBD

open access: yes, 2014
Avec l'objectif d'améliorer le rendement des lampes à excimères (Excilampe) à décharge à barrière diélectrique (DBD), un convertisseur en mode de courant, qui permet un ajustement précis de la puissance électrique injectée dans ce type des lampes, à été ...
Florez Rubio, David Magin, Florez, D.
core  

Semiconductor processing with excimer lasers [PDF]

open access: yes, 1983
The advantages of pulsed excimer lasers for semiconductor processing are reviewed. Extensive comparisons of the quality of annealing of ion-implanted Si obtained with XeCl and ruby lasers have been made.
Young, R.T.   +5 more
core  

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