Results 231 to 240 of about 1,097,268 (266)
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Time-resolved fluorescence of tryptophan synthase
Biophysical Chemistry, 1996Time-resolved and steady-state fluorescence of the tryptophan synthase alpha 2 beta 2 complex and of the beta 2 dimer from Salmonella typhimurium were measured to characterize the conformational properties of the beta subunit in the presence and in the absence of the alpha subunit when the catalytic species internal aldimine, external aldimine and ...
VACCARI, Simona +3 more
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Time-resolved spectroscopy of the human forearm
Journal of Photochemistry and Photobiology B: Biology, 1992For spectroscopic purposes, the forearm is a conveniently large object to be investigated because consistent oxygenation and blood volume changes can be obtained. Human forearm spectral properties were investigated using picosecond near-IR laser spectroscopy. The behaviour of the temporal point spread function in resting conditions and during ischaemia,
M. FERRARI +4 more
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Time-Resolved Optical Spectroscopy of Wood
Applied Spectroscopy, 2008We have proposed and experimentally demonstrated that picosecond time-resolved optical spectroscopy in the visible/near-infrared (NIR) region (700–1040 nm) is a useful technique for noninvasive characterization of wood. This technique has been demonstrated on both softwood and hardwood samples treated in different ways simulating the aging process ...
D'ANDREA, COSIMO +9 more
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Time-Resolved Photochemistry of Stiffened Stilbenes
The Journal of Physical Chemistry B, 2019Broadband transient absorption spectroscopy is used to study the photoisomerization of stiffened stilbenes in solution, specifically E/ Z mixtures of bis(benzocyclobutylidene) (t4, c4) and ( E)-1-(2,2-dimethyltetralinylidene)-2-2-dimethyltetraline (t6). Upon excitation to S1, all evolve to perpendicular molecular conformation P, followed by decay to S0,
Olivia A. Krohn +6 more
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Nature, 1991
IN a conventional hologram, a photographic film records the interference pattern of monochromatic light, scattered from the object to be imaged, with a reference beam of unscattered light. Illumination of the developed film with a replica of the reference beam then creates a virtual image of the original object.
A. Rebane, Jack Feinberg
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IN a conventional hologram, a photographic film records the interference pattern of monochromatic light, scattered from the object to be imaged, with a reference beam of unscattered light. Illumination of the developed film with a replica of the reference beam then creates a virtual image of the original object.
A. Rebane, Jack Feinberg
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1994 Conference on Lasers and Electro-Optics Europe, 1994
Recent demand for rapid and non-invasive diagnostic techniques in medicine has initiated an extensive research in the field of optical diagnostics. Reflection of light from biological tissue is a typical multiple scattering phenomenon. The backscattered light from an incident short optical pulse will be broadened in time, and this broadening can be ...
L.O. Svaasand +2 more
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Recent demand for rapid and non-invasive diagnostic techniques in medicine has initiated an extensive research in the field of optical diagnostics. Reflection of light from biological tissue is a typical multiple scattering phenomenon. The backscattered light from an incident short optical pulse will be broadened in time, and this broadening can be ...
L.O. Svaasand +2 more
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Time Resolved Microfluorescence In Biomedical Diagnosis
Optical Engineering, 1985A measuring system combining subnanosecond laser-induced fluorescence with microscopic signal detection was installed and used for diverse projects in the biomedical and environmental fields. These projects range from tumor diagnosis and enzymatic analysis to measurements of the activity of methanogenic bacteria, which affect biogas production and ...
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IEE Colloquium on Measurement and Plasma, 1997
Emission spectroscopy is very often used as a diagnostic tool in the study of discharges, for example in recognising the presence of particular species within the discharge. Inferring even the relative concentrations of discharge species from emission measurements alone is however very difficult.
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Emission spectroscopy is very often used as a diagnostic tool in the study of discharges, for example in recognising the presence of particular species within the discharge. Inferring even the relative concentrations of discharge species from emission measurements alone is however very difficult.
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TIME-RESOLVED FLUORESCENCE OF PROTEINS
Annual Review of Biochemistry, 1985J M, Beechem, L, Brand
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Computational time-resolved imaging.
2015Classical photography uses steady-state illumination and light sensing with focusing optics to capture scene reflectivity as images; temporal variations of the light field are not exploited. This thesis explores the use of time-varying optical illumination and time-resolved sensing along with signal modeling and computational reconstruction.
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