Results 21 to 30 of about 4,409,042 (310)

Synthesis and Photoluminescence Properties of Tunable Green-Orange Cerium-Doped Terbium-Lutetium Aluminum Garnet

open access: yesInternational Journal of Electrochemical Science, 2015
Cerium-doped terbium-lutetium aluminum garnet ((TbxLu1-x)2.9Al5O12: 0.1Ce) were synthesized by solid state reaction method. The crystalline phase, morphology and photoluminescence properties were characterized by using X-ray diffraction (XRD ...
Jun Wang   +4 more
doaj   +1 more source

Analysis of Cadmium Contamination in Lettuce (Lactuca sativa L.) Using Visible-Near Infrared Reflectance Spectroscopy

open access: yesSensors, 2023
In order to rapidly and accurately monitor cadmium contamination in lettuce and understand the growth conditions of lettuce under cadmium pollution, lettuce is used as the test material.
Lina Zhou   +6 more
doaj   +1 more source

Cosmological Red-shift [PDF]

open access: yesNature, 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.
openaire   +2 more sources

Spectral Shifts of Nonadiabatic High-Order Harmonic Generation

open access: yesApplied Sciences, 2013
High-order harmonic generation (HHG) is a nonlinear nonperturbative process in ultrashort intense laser-matter interaction. It is the main source of coherent attosecond (1 as = 10−18 s) laser pulses to investigate ultrafast electron dynamics.
André D. Bandrauk, Xue-Bin Bian
doaj   +1 more source

Exploration of natural red-shifted rhodopsins using a machine learning-based Bayesian experimental design

open access: yesCommunications 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
doaj   +1 more source

Modeling of the second harmonic generation in a lens-shaped InAs/GaAs quantum core/shell dot under temperature, pressure and applied electric field effects

open access: yesResults 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
doaj   +1 more source

Red Shift: Procedural Shift-Reduce Parsing

open access: yes, 2017
Red Shift is a new design pattern for implementing parsers. The pattern draws ideas from traditional shift-reduce parsing as well as procedural PEG parsers.
Laurent, Nicolas   +1 more
core   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

open access: yesFEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi   +5 more
wiley   +1 more source

Effects of urea on activity and conformation of acid phosphatase from wheat germ

open access: yes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
doaj   +1 more source

Ultrafast Lasing Dynamics in a CsPbBr3 Perovskite Microplate

open access: yesAdvanced 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
doaj   +1 more source

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