Results 21 to 30 of about 1,155,062 (264)

Time-Resolved Macromolecular Crystallography [PDF]

open access: yesAnnual Review of Biophysics and Biophysical Chemistry, 1989
Reaction mechanisms in chemistry and biochemistry involve structural change, not merely static structure (1). These structural changes can be very rapid, spanning the time range from femtoseconds to seconds and above. We have developed and applied timeresolved X-ray crystallography(2,3) to monitor directly the changes in electron density and hence in ...
openaire   +2 more sources

Feasibility of Noninvasive Diagnosis of Spinal Vascular Diseases Using Time-Resolved Angiography With Stochastic Trajectories

open access: yesFrontiers in Neurology, 2021
Background and Purpose: To determine the feasibility of time-resolved angiography with stochastic trajectories (TWIST) in the diagnosis of spinal dural arteriovenous fistula (SDAVF) and perimedullary arteriovenous fistula (PAVF).Methods: A total of 11 ...
Xiao-Er Wei   +4 more
doaj   +1 more source

Time resolved GRB spectroscopy [PDF]

open access: yesAIP Conference Proceedings, 2000
5 pages, 3 figures, Paper presented at the 5th Huntsville Symposium, Huntsville (Alabama) Oct ...
Tavani, M., Band, D., Ghirlanda, G.
openaire   +2 more sources

37ps-Precision Time-Resolving Active Quenching Circuit for High-Performance Single Photon Avalanche Diodes

open access: yesIEEE Photonics Journal, 2018
Time-resolved imaging by means of single-photon avalanche diodes (SPADs) has achieved widespread interest in recent years, especially since technological progress has opened the way to the development of multichannel time-correlated single-photon ...
Giulia Acconcia   +2 more
doaj   +1 more source

Time-resolved protein activation [PDF]

open access: yesNature Methods, 2019
Blocking the active sites of proteins with a photocaged tyrosine allows for temporally precise photoactivation of a wide range of proteins of interest.
openaire   +2 more sources

Coherent photo-induced phonon emission in the charge-density-wave state of K0.3MoO3

open access: yesNew Journal of Physics, 2019
We report on the observation of coherent terahertz (THz) emission from the quasi-one-dimensional charge-density wave (CDW) system, blue bronze (K _0.3 MoO _3 ), upon photo-excitation with ultrashort near-infrared optical pulses.
K Rabia   +6 more
doaj   +1 more source

Photomultiplier nonlinear response in time-domain laser-induced luminescence spectroscopy

open access: yesQuímica Nova, 2007
A new procedure to find the limiting range of the photomultiplier linear response of a low-cost, digital oscilloscope-based time-resolved laser-induced luminescence spectrometer (TRLS), is presented.
Leandro José Bossy Schip   +5 more
doaj   +1 more source

A Compact Ultrafast Electron Diffractometer with Relativistic Femtosecond Electron Pulses

open access: yesQuantum Beam Science, 2020
We have developed a compact relativistic femtosecond electron diffractometer with a radio-frequency photocathode electron gun and an electron lens system.
Jinfeng Yang   +4 more
doaj   +1 more source

Time-Resolved Vibrational Spectroscopy

open access: yesThe Journal of Physical Chemistry A, 2018
This document contains the Proceedings from the 14th International Conference on Time-Resolved Vibrational Spectroscopy, which was held in Meredith, NH from May 9-14, 2009. The study of molecular dynamics in chemical reaction and biological processes using time-resolved spectroscopy plays an important role in our understanding of energy conversion ...
Huib Bakker   +2 more
openaire   +3 more sources

Time Resolved in situ X-Ray Tomographic Microscopy Unraveling Dynamic Processes in Geologic Systems

open access: yesFrontiers in Earth Science, 2020
X-ray tomographic microscopy is a well-established analysis technique in different fields of the Earth Sciences to access volumetric information of the internal microstructure of a large variety of opaque materials with high-spatial resolution and in a ...
Federica Marone   +12 more
doaj   +1 more source

Home - About - Disclaimer - Privacy