Results 41 to 50 of about 478,349 (287)

FRET-Based Quantum Dot Immunoassay for Rapid and Sensitive Detection of Aspergillus amstelodami

open access: yesSensors, 2011
In this study, a fluorescence resonance energy transfer (FRET)-based quantum dot (QD) immunoassay for detection and identification of Aspergillus amstelodami was developed.
Michele D. Kattke   +4 more
doaj   +1 more source

Response of Photoluminescence of H-Terminated and Hydrosilylated Porous Si Powders to Rinsing and Temperature

open access: yesSurfaces, 2020
The photoluminescence (PL) response of porous Si has potential applications in a number of sensor and bioimaging techniques. However, many questions still remain regarding how to stabilize and enhance the PL signal, as well as how PL responds to ...
Kurt W. Kolasinski   +3 more
doaj   +1 more source

Studying the quenching resulted from the formation of an association complex between olsalazine or sulfasalazine with acriflavine

open access: yesRoyal Society Open Science, 2021
We report the detection and quantification of important ulcerative colitis drugs olsalazine (OLS) and sulfasalazine (SUL) by the spectrofluorometric method.
Manar Tolba, Heba Elmansi
doaj   +1 more source

The Evolution of Environmental Quenching Timescales to $z\sim1.6$ [PDF]

open access: yes, 2018
Using a sample of 4 galaxy clusters at $1.35 < z < 1.65$ and 10 galaxy clusters at $0.85 < z < 1.35$, we measure the environmental quenching timescale, $t_Q$, corresponding to the time required after a galaxy is accreted by a cluster for it to fully ...
Cerulo, P.   +20 more
core   +3 more sources

Exciton-like luminescence of KCl matrix under thermoelastic, local and uniaxial deformation

open access: yesEurasian Journal of Physics and Functional Materials, 2022
The radiative relaxation of exciton-like formations in KCl-Na single crystal has been studied by exper-imental methods of luminescent spectroscopy. The amplifying effect of the radiation intensity with a maximum at 2.8 eV up to 500 times as compared to ...
K. Shunkeyev   +3 more
doaj   +1 more source

Self-quenching streamers [PDF]

open access: yesNuclear Instruments and Methods in Physics Research, 1982
Self quenching streamers in drift tubes have been observed both optically and electronically. The streamers of 150-200 ?m width extend out from the anode wire to 1.5 to 3 mm at atmospheric pressures. Electronic measurements show that pulses with a rise time of 5 ns reach 30 mV directly into 50 ?
M. Atac, A. V. Tollestrup, D. Potter
openaire   +1 more source

Quantum Discord in a spin-1/2 transverse XY Chain Following a Quench

open access: yes, 2011
We report a study on the zero-temperature quantum discord as a measure of two-spin correlation of a transverse XY spin chain following a quench across a quantum critical point and investigate the behavior of mutual information, classical correlations and
Amit Dutta   +17 more
core   +1 more source

Renormalization of the weak hadronic current in the nuclear medium [PDF]

open access: yes, 2000
The renormalization of the weak charge-changing hadronic current as a function of the reaction energy release is studied at the nucleonic level. We have calculated the average quenching factors for each type of current (vector, axial vector and induced ...
A. L. Barabanov   +35 more
core   +2 more sources

Effect of Necking Behavior and of Gap Size on the Cooling Rate in Hot Stamping [PDF]

open access: yesMaterials Research, 2016
In this study, a tailored die quenching experimental method using low closing pressures and an aluminum flat die was developed in order to evaluate the effects of the gap size on the cooling rate in the hot stamping process of a 22MnB5 steel grade ...
AndrĂ© Olah Neto   +3 more
doaj   +2 more sources

Quenching Dynamics of a quantum XY spin-1/2 chain in presence of a transverse field

open access: yes, 2007
We study the quantum dynamics of a one-dimensional spin-1/2 anisotropic XY model in a transverse field when the transverse field or the anisotropic interaction is quenched at a slow but uniform rate.
Amit Dutta   +7 more
core   +1 more source

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