Results 21 to 30 of about 2,419,010 (304)
Resolution limit in community detection [PDF]
, 2006 Detecting community structure is fundamental to clarify the link between structure and function in complex networks and is used for practical applications in many disciplines. A successful method relies on the optimization of a quantity called modularity
Aral +14 more
core +3 more sources
A Reduced GO-Graphene Hybrid Gas Sensor for Ultra-Low Concentration Ammonia Detection
Sensors, 2018 A hybrid structure gas sensor of reduced graphene oxide (RGO) decorated graphene (RGO-Gr) is designed for ultra-low concentration ammonia detection. The resistance value of the RGO-Gr hybrid is the indicator of the ammonia concentration and controlled by
Chang Wang +7 more
doaj +1 more source
Quantum-optical communication rates through an amplifying random medium [PDF]
, 2002 We study the competing effects of stimulated and spontaneous emission on the information capacity of an amplifying disordered waveguide. At the laser threshold the capacity reaches a "universal" limit, independent of the degree of disorder.
A. L. Moustakas +23 more
core +4 more sources
Speciation without chromatography: Part 2. Determination of tributyltin by chloride generation flow injection atomic absorption spectrometry [PDF]
, 2002 A procedure is described for the quantitation of tributyltin in aqueous samples and extracts based on its relatively high volatility in halide media, permitting vapour phase sampling from the headspace above such samples.Tributyltin chloride (TBT-C1) was
Christine Scriver +13 more
core +1 more source
Yankuang ceshi, 2018 Carbon and nitrogen isotopes are essential tools to study paleoclimate, palaeoenvironment, and ecosystem. At present, carbon and nitrogen isotopes are commonly determined by Elemental Analyzer-Isotope Ratio Mass Spectrometer (EA-IRMS).
XU Li +4 more
doaj +1 more source
Optimal multi-photon phase sensing with a single interference fringe [PDF]
, 2013 Quantum entanglement can help to increase the precision of optical phase measurements beyond the shot noise limit (SNL) to the ultimate Heisenberg limit. However, the N-photon parity measurements required to achieve this optimal sensitivity are extremely
Hofmann, H. F. +2 more
core +2 more sources
Charge Detection in a Closed-Loop Aharonov-Bohm Interferometer [PDF]
, 2006 We report on a study of complementarity in a two-terminal "closed-loop" Aharonov-Bohm interferometer. In this interferometer, the simple picture of two-path interference cannot be applied.
A. L. Yeyati +3 more
core +2 more sources
A Review of Photothermal Detection Techniques for Gas Sensing Applications
Applied Sciences, 2019 Photothermal spectroscopy (PTS) is a technique used for determining the composition of liquids, solids and gases. In PTS, the sample is illuminated with a radiation source, and the thermal response of the analyte (e.g., refractive index) is analyzed to ...
Karol Krzempek
doaj +1 more source
Materials Research Express, 2021 In this paper, an ISFET model is established and its accuracy is verified. The model can overcome the limitation of TCAD of not supporting electrolyte solution simulation.
Hui Wang, Naiyun Tang
doaj +1 more source
Journal of Integrative Agriculture, 2022 Denitrification-induced nitrogen (N) losses from croplands may be greatly increased by intensive fertilization. However, the accurate quantification of these losses is still challenging due to insufficient available in situ measurements of soil ...
Yan LIU +9 more
doaj +1 more source