Results 41 to 50 of about 5,802,458 (360)
Nature, 1964 Hoyle1 has shown that for a steady-state universe consisting of uniformly distributed matter of density ρ a metric of the form: applies if it is assumed that a uniform creation of matter occurs.
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Electronic excited state of protonated aromatic molecules: protonated Fluorene [PDF]
, 2011 The photo-fragmentation spectrum of protonated fluorene has been recorded in the visible spectral region, largely red shifted as compared to the first excited state absorption of neutral fluorene. The spectrum shows two different vibrational progressions,
Ahlrichs +42 more
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A chemical sensor based on a photonic-crystal L3 nanocavity defined in a silicon-nitride membrane [PDF]
, 2014 The application of a silicon-nitride based L3 optical nanocavity as a chemical sensor is explored. It is shown that by adjusting the thickness of an ultra-thin Lumogen Red film deposited onto the nanocavity surface, the fundamental optical mode undergoes
Brittle, Stuart +6 more
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Communications Biology, 2021 Inoue, Takeuchi and colleagues propose a machine learning-based protocol to screen rhodopsins for their likelihood to be red-shifted. After experimental verification, their tool shows remarkable success at identifying rhodopsins that showed red-shift ...
Keiichi Inoue +12 more
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Explaining the Gamma-Ray Burst E_peak Distribution [PDF]
, 2002 The characteristic photon energy for Gamma Ray Bursts, E_peak, has a remarkably narrow distribution for bursts of similar peak flux, with values between 150 and 600 keV for most faint bursts.
Schaefer, Bradley E.
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Results in Physics, 2020 In this paper, we explore the second harmonic generation (SHG) in a lens-shaped InAs/GaAs quantum core/shell (LSQCS). The three-dimensional Schrödinger equation is given under the framework of the effective mass approximation and it is solved by using ...
D. Makhlouf +3 more
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Ultrafast Lasing Dynamics in a CsPbBr3 Perovskite Microplate
Advanced Photonics Research, 2022 The perovskite microlaser is a competitive candidate of light source for optical communication and integrated photonic circuits. Understanding the fundamental mechanism of lasing is crucial for the upcoming devices.
Ju Wang +8 more
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Extreme red shifted SERS nanotags [PDF]
Chemical Science, 2015 Extreme red-shifted nanotags have been developed and they provide effective SERS with picomolar detection limits when excited at 1280 nm.
Bedics, Matthew A. +9 more
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Photon Redshift in a Magnetic field
, 2010 Previous results from the authors concerning the arising a tiny photon anomalous paramagnetic moment are also interpreted as a red-shift in analogy to the gravitational known effect.
ELIZABETH RODRÍGUEZ QUERTS +2 more
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Effects of urea on activity and conformation of acid phosphatase from wheat germ
浙江大学学报. 农业与生命科学版, 2004 Changes in conformation and activity of acid phosphatase from wheat germ following denaturation of the enzyme by urea solutions of different concentrations were measured by the shift in fluorescence and differential UV-absorption spectrum.
WANG Li-ming +3 more
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