Results 111 to 120 of about 699,311 (262)

Guillain-Barré syndrome associated with SARS-CoV-2 infection: causality or coincidence?

open access: yesLancet Neurology, 2020
Huang-ning Zhao   +4 more
semanticscholar   +1 more source

Coincidence points of Mappings in Banach Spaces [PDF]

open access: yesarXiv, 2018
In this article we prove an existence theorem for coincidence points of mappings in Banach spaces. This theorem generalizes the Kantorovich fixed point theorem.
arxiv  

In situ flame chemistry tracing by imaging photoelectron photoion coincidence spectroscopy.

open access: yesReview of Scientific Instruments, 2014
Adaptation of a low-pressure flat flame burner with a flame-sampling interface to the imaging photoelectron photoion coincidence spectrometer (iPEPICO) of the VUV beamline at the Swiss Light Source is presented.
P. Oßwald   +7 more
semanticscholar   +1 more source

Error Analysis of Radar Coincidence Imaging in the Presence of Noise

open access: yesLeida xuebao, 2014
Radar coincidence imaging is a new method for high-resolution staring imaging. First, the mathematical model is constructed. Second, the theoretical error for radar coincidence imaging in the presence of noise is derived using the parametric imaging ...
Dai Qiang   +4 more
doaj   +1 more source

Lightning discharge identification system [PDF]

open access: yes, 1981
A system for differentiating between cloud to cloud and cloud to ground lightning discharges is described which includes an electric field antenna that senses the rate of charge of an electric field produced by a lightning discharge.
Lennon, C. L.
core   +1 more source

Combining attosecond XUV pulses with coincidence spectroscopy.

open access: yesReview of Scientific Instruments, 2014
Here we present a successful combination of an attosecond beamline with a COLTRIMS apparatus, which we refer to as AttoCOLTRIMS. The setup provides either single attosecond pulses or attosecond pulse trains for extreme ultraviolet-infrared pump-probe ...
M. Sabbar   +6 more
semanticscholar   +1 more source

Low-cost nanosecond electronic coincidence detector [PDF]

open access: yesarXiv, 2005
We present a simple and low-cost implementation of a fast electronic coincidence detector based on PECL logic with a TTL-compatible interface. The detector has negligible dead time and the coincidence window is adjustable with a minimum width of 1 ns.
arxiv  

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