Results 11 to 20 of about 1,879,187 (329)
Molecules, 2021 Many of the current innovations in instrument design have been focused on making them smaller, more rugged, and eventually field transportable. The ultimate application is obvious, carrying the instrument to the field for real time sample analysis ...
Brian T. Buckley +2 more
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Journal of Magnetic Resonance, 2017 The paper describes the design of broadband chirp excitation pulses in NMR. We first develop a three stage model for understanding chirp excitation in NMR. We then show how a chirp $ $ pulse can be used to refocus the phase of the chirp excitation pulse. The resulting magnetization still has some phase dispersion in it.
openaire +3 more sources
Momentum-resolved charge excitations in high-Tc cuprates studied by resonant inelastic x-ray scattering [PDF]
, 2007 We report a Cu K-edge resonant inelastic x-ray scattering (RIXS) study of high-Tc cuprates. Momentum-resolved charge excitations in the CuO2 plane are examined from parent Mott insulators to carrier-doped superconductors.
Collart +45 more
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Cardiac tissue engineering [PDF]
Journal of the Serbian Chemical Society, 2005 We hypothesized that clinically sized (1-5 mm thick),compact cardiac constructs containing physiologically high density of viable cells (≈108 cells/cm3) can be engineered in vitro by using biomimetic culture systems capable of providing oxygen transport ...
Radišić Milica +1 more
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Roundabout relaxation: collective excitation requires a detour to equilibrium [PDF]
, 2004 Relaxation to equilibrium after strong and collective excitation is studied, by using a Hamiltonian dynamical system of one dimensional XY model. After an excitation of a domain of $K$ elements, the excitation is concentrated to fewer elements, which are
D. Escande +8 more
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The enigmatic function of chandelier cells
Frontiers in Neuroscience, 2010 Chandelier (or axo-axonic) cells are one of the most distinctive GABAergic interneurons in the brain. Their exquisite target specificity for the axon initial segment of pyramidal neurons, together with their GABAergic nature, long suggested the ...
Alan R Woodruff +2 more
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Harmonic chirp imaging method for ultrasound contrast agent [PDF]
, 2005 Coded excitation is currently used in medical ultrasound to increase signal-to-noise ratio (SNR) and penetration depth. We propose a chirp excitation method\ud for contrast agents using the second harmonic component of the response.
Associate Member +5 more
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Layer Specific Development of Neocortical Pyramidal to Fast Spiking Cells Synapses.
Frontiers in Cellular Neuroscience, 2016 All cortical neurons are engaged in inhibitory feedback loops which ensure excitation-inhibition balance and are key elements for the development of coherent network activity.
Olga eVoinova +6 more
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Spectroscopic study of the light-induced changes of the core antenna complex CP43 in photosystem II
Photosynthetica, 2020 In this study, spectroscopic approaches were used to evaluate light-induced changes in chlorophyll protein 43 (CP43). Upon illumination, we observed chlorophyll (Chl) a bleaching with the complete opening of the tetrapyrrole ring.
Y.G. QU, F. ZHOU, T.Y. KUANG
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Iodine molecule covalente excited states as determined by threshold electron spectrometry [PDF]
Journal of the Serbian Chemical Society, 2000 The iodine molecule has been investigated by a threshold electron spectrometer in the incident electron energy range from 1.00 eV to 3.5eV. From the threshold electron spectrum contributions for excitation of three states known from optical ...
Kurepa Milan, Jureta Jozo
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