Results 71 to 80 of about 8,912,797 (389)

Limits of modularity maximization in community detection [PDF]

open access: yesPhysical Review E, 2011
Modularity maximization is the most popular technique for the detection of community structure in graphs. The resolution limit of the method is supposedly solvable with the introduction of modified versions of the measure, with tunable resolution parameters.
Andrea Lancichinetti, Santo Fortunato
openaire   +4 more sources

Evaluating the origin and spread of spotted lanternfly (Lycorma delicatula) in Japan

open access: yesPopulation Ecology, EarlyView.
The invasive spotted lanternfly (Lycorma delicatula) is native to China and is a serious economic pest in the Republic of Korea and the United States, though it is not considered a pest in Japan. We established a distribution map of L. delicatula in Japan through a comprehensive review of published literature and citizen science reports and analyzed ...
Matthew T. Kamiyama   +5 more
wiley   +1 more source

Graphene and Perovskite-Based Nanocomposite for Both Electrochemical and Gas Sensor Applications: An Overview

open access: yesSensors, 2020
Perovskite and graphene-based nanocomposites have attracted much attention and been proven as promising candidates for both gas (H2S and NH3) and electrochemical (H2O2, CH3OH and glucose) sensor applications.
Tse-Wei Chen   +4 more
doaj   +1 more source

Trustworthy Anomaly Detection: A Survey [PDF]

open access: yesarXiv, 2022
Anomaly detection has a wide range of real-world applications, such as bank fraud detection and cyber intrusion detection. In the past decade, a variety of anomaly detection models have been developed, which lead to big progress towards accurately detecting various anomalies.
arxiv  

On the Capacity of Waveform Channels Under Square-Law Detection of Time-Limited Signals [PDF]

open access: yes, 2020
Capacity bounds for waveform channels under square-law detection of time-limited complex-valued signals are derived. The upper bound is the capacity of the channel under (complex-valued) coherent detection. The lower bound is one bit less, per dimension, than the upper bound.
arxiv   +1 more source

General limit to non-destructive optical detection of atoms

open access: yes, 2004
We demonstrate that there is a fundamental limit to the sensitivity of phase-based detection of atoms with light for a given maximum level of allowable spontaneous emission. This is a generalisation of previous results for two-level and three-level atoms.
Claude Cohen Tannoudji   +5 more
core   +1 more source

Detection limits in photothermal microscopy

open access: yesChemical Science, 2010
We show how to push the detection limits in photothermal microscopy towards weaker single absorbers, by a systematic optimization of signal and noise sources. In particular, we (i) maximize the power of the probe laser beam, (ii) select optimal optical and thermal properties for the medium embedding the absorber, and (iii) thermally isolate the ...
A. Gaiduk   +3 more
openaire   +1 more source

Comparison of kinship‐identification methods for robust stock assessment using close‐kin mark–recapture data for Pacific bluefin tuna

open access: yesPopulation Ecology, EarlyView.
In this study, we compared three methods for kinship identification using different algorithms in samples of wild Pacific bluefin tuna and generated genotyping data. The three methods resulted in different numbers of inferred kinship pairs for both generated and actual data. Particularly for the half‐sibling pairs, considerable number of false‐positive
Yohei Tsukahara   +5 more
wiley   +1 more source

Development of a highly sensitive colloidal gold semiquantitative method for the determination of difenoconazole residues in citrus

open access: yesFrontiers in Nutrition
IntroductionDifenoconazole (DIFE) is a common pesticide used in citrus cultivation; excessive intake can cause neurological damage to the organism, and the existing colloidal gold immunochromatographic test strips cannot meet the requirements for the ...
Ruobing Wang   +10 more
doaj   +1 more source

Facile synthesized carbon dots for simple and selective detection of cobalt ions in aqueous media

open access: yesCogent Engineering, 2022
A simple method was demonstrated for detecting cobalt ions based on the fluorescence quenching of carbon dots (CDots). The best quantum yield for CDots synthesized by microwaving lime and methanolamine is 49.42%. The detection range of this research is 0–
Ilham Alkian   +4 more
doaj   +1 more source

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