Results 31 to 40 of about 2,419,010 (304)
Detection of amplitude modulation with squeezed light for sensitivity beyond the shot-noise limit [PDF]
An improvement in precision beyond the limit set by the vacuum-state or zero-point fluctuations of the electromagnetic field is reported for the detection of amplitude modulation encoded on a weak signal beam. The improvement is achieved by employing the
Kimble, H. J., Wu, Ling-An, Xiao, Min
core +1 more source
Ivabradine hydrochloride (IVR) is a medically important drug because of its ability to lower the heart rate. Techniques reported for IVR determination were expensive, laborious, besides being of poor selectivity.
Fatehy M. Abdel-Haleem +11 more
doaj +1 more source
Learning Something From Nothing: The Critical Importance of Rethinking Microbial Non-detects
Accurate estimation of microbial concentrations is necessary to inform many important environmental science and public health decisions and regulations.
Alex Ho Shing Chik +4 more
doaj +1 more source
It was of interest to search for luminescent reactions to terbium in complexes with sulfosalicylic acid derivatives and to enhance them by studying the effect of third components (aminopolycarboxylic acids, organic bases and surfactants).
S.A. Elcheparova, A.A. Kokoevа
doaj +1 more source
Review on the Analysis and Testing Method of Typical Plant Growth Regulators in Environment
Plant growth regulators (PGRs) are defined as naturally occurring or artificially synthesized compounds. The functions of PGRs mainly include accelerating or delaying seed germination, breaking plant dormancy, stimulating or reducing bud elongation ...
HU Xiaolei +4 more
doaj +1 more source
Comparing the fundamental limit of detection for interferometric and resonant biosensors with coherent phase read-out [PDF]
We compare the limit of detection of coherently interrograted photonic biosensors, using both interferometric and resonant architectures.Universidad de Málaga.
Halir, Robert +4 more
core +1 more source
A ratiometric oxygen sensor based on a platinum octaethylporphyrin (PtOEP)–coumarin 6 (C6)/poly (styrene-trifluoroethyl methacrylate) (poly (St-TFEMA)) film was developed for automatic dissolved oxygen (DO) detection. The oxygen-sensing film according to
Honglin Zhang, Zhiguo Zhang
doaj +1 more source
In-vitro Study for Cerenkov Luminescence Imaging Application in Hepatic Metastasectomy
Cerenkov luminescence imaging (CLI) has been recently proposed as a method to visualize surgical margins in the operating theater, immediately after resection, to allow refining surgery in a single procedure. Our group is preparing a pilot clinical study
Esther Ciarrocchi +10 more
doaj +1 more source
Quantum metrology exploits entangled states of particles to improve sensing precision beyond the limit achievable with uncorrelated particles. All previous methods required detection noise levels below this standard quantum limit to realize the benefits ...
Engelsen, N. J. +3 more
core +1 more source
Sub-shot-noise shadow sensing with quantum correlations [PDF]
The quantised nature of the electromagnetic field sets the classical limit to the sensitivity of position measurements. However, techniques based on the properties of quantum states can be exploited to accurately measure the relative displacement of a ...
Edgar, Matthew P. +5 more
core +1 more source

