Results 31 to 40 of about 36,483 (226)

Experimental Study of the Laser-Induced Oxyhemoglobin Photodissociation in Cutaneous Blood Vessels

open access: yesActa Medica Bulgarica, 2015
A new optical method for reduction of local tissue hypoxia is proposed. It is shown that this method of phototherapy allows the control of a local oxygen concentration in tissue.
Gisbrecht Alexander, Mamilov S.
doaj   +1 more source

An ion trap source of cold atomic hydrogen via photodissociation of the BaH+ molecular ion

open access: yesNew Journal of Physics, 2022
I present a novel scheme for producing cold (magnetically trappable) atomic hydrogen, based on threshold photodissociation of the BaH ^+ molecular ion.
S A Jones
doaj   +1 more source

Jitter-correction for IR/UV-XUV pump-probe experiments at the FLASH free-electron laser

open access: yesNew Journal of Physics, 2017
In pump-probe experiments employing a free-electron laser (FEL) in combination with a synchronized optical femtosecond laser, the arrival-time jitter between the FEL pulse and the optical laser pulse often severely limits the temporal resolution that can
Evgeny Savelyev   +35 more
doaj   +1 more source

Photodissociation Spectroscopy of [PDF]

open access: yesLaser Chemistry, 1994
The photodissociation spectrum of is obtained from the yields of fragment ion as a function of photodissociation wavelength in the 400–1400 nm region. Two bands at 440 and 580 nm are attributed to the C ← X and the B ← X local excitation (LE) bands, respectively.
Kazuhiko Ohashi   +3 more
openaire   +1 more source

Photodestruction of Diatomic Molecular Ions: Laboratory and Astrophysical Application

open access: yesMolecules, 2020
In this work, the processes of photodissociation of some diatomic molecular ions are investigated. The partial photodissociation cross-sections for the individual rovibrational states of the diatomic molecular ions, which involves alkali metals, as well ...
Vladimir A. Srećković   +2 more
doaj   +1 more source

Atmospheric processes on ice nanoparticles in molecular beams

open access: yesFrontiers in Chemistry, 2014
This review summarizes some recent experiments with ice nanoparticles (large water clusters) in molecular beams and outlines their atmospheric relevance: (1) Investigation of mixed water–nitric acid particles by means of the electron ionization and ...
Michal eFárník, Viktoriya ePoterya
doaj   +1 more source

Control of Ultracold Photodissociation with Magnetic Fields

open access: yes, 2017
Photodissociation of a molecule produces a spatial distribution of photofragments determined by the molecular structure and the characteristics of the dissociating light.
Kondov, S. S.   +6 more
core   +1 more source

Structure of Stationary Photodissociation Fronts [PDF]

open access: yes, 1996
The structure of stationary photodissociation fronts is revisited. H_2 self- shielding is discussed, including the effects of line overlap. We find that line overlap is important for N(H_2) > 10^{20} cm^{-2}.
Bertoldi, Frank, Draine, B. T.
core   +3 more sources

Preparing sulfur nanoparticles and determining their effect on the photodegradation of polycarbonates [PDF]

open access: yesمجلة جامعة الانبار للعلوم الصرفة
This study involved the preparation of sulfur nanoparticles using the extract of Ziziphus-spina leaves and examined their effect on the photodegradation of polycarbonate membranes with a thickness of (60±5) microns, after adding various ...
rand hassan, Hameed Ali, Muthanaa Sirhan
doaj   +1 more source

The effects of nitric oxide cooling and the photodissociation of molecular oxygen on the thermosphere/ionosphere system over the Argentine Islands [PDF]

open access: yesAnnales Geophysicae, 1997
In the past the global, fully coupled, time-dependent mathematical model of the Earth's thermosphere/ionosphere/plasmasphere (CTIP) has been unable to reproduce accurately observed values of the maximum plasma frequency, foF2, at extreme geophysical ...
G. D. Wells   +4 more
doaj   +1 more source

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