Results 21 to 30 of about 2,444,726 (301)
Designing Highly Sensitive Surface Plasmon Resonance Sensor With Dual Analyte Channels
IEEE Access, 2021 The ease of controlling waveguide properties through unparalleled design flexibility has made the photonic crystal fiber (PCF) an attractive platform for plasmonic structures.
Md. Aslam Mollah +6 more
doaj +1 more source
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
Resolution limit in community detection [PDF]
Proceedings of the National Academy of Sciences, 2007 Detecting community structure is fundamental for uncovering the links between structure and function in complex networks and for practical applications in many disciplines such as biology and sociology. A popular method now widely used relies on the optimization of a quantity called modularity, which is a quality index for a partition of a network into
Fortunato, Santo, Barthelemy, Marc
openaire +3 more sources
Micromachines, 2021 As coronavirus disease 2019 (COVID-19) continues to spread around the world, the establishment of decentralized severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) diagnostics and point-of-care testing is invaluable.
Kai-Feng Hung +8 more
doaj +1 more source
Hydrogel-Based Sensors for Ethanol Detection in Alcoholic Beverages
Sensors, 2019 A fast and reliable determination of the ethanol concentration is essential in the analysis of alcoholic beverages. However, different factors like pH value or salt concentration can influence the ethanol measurement.
Jan Erfkamp +2 more
doaj +1 more source
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
Tunable sensor response by voltage-control in biomimetic hair flow sensors [PDF]
, 2013 We present an overview of improvements in detection limit and responsivity of our biomimetic hair flow sensors by electrostatic spring-softening (ESS). Applying a DC-bias voltage to our capacitive flow sensors improves the responsively by up to 80% for ...
Bruinink, Christiaan M. +3 more
core +5 more sources
Applied Sciences, 2023 The objectives of this paper will be to discuss the issues related to the determination of the limits of detection (LOD) in laser-induced breakdown spectroscopy (LIBS) analytical applications. The derivation of the commonly used ‘3-sigma over slope’ rule
Francesco Poggialini +6 more
doaj +1 more source
Detection of amplitude modulation with squeezed light for sensitivity beyond the shot-noise limit [PDF]
, 1988 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
Concentration Sensitivity of Nucleic Acid and Protein Molecule Detection Using Nanowire Biosensors
Biophysica, 2021 The concentration detection limit (DL) of biomacromolecules attainable using a nanowire detector has become a topical issue. A DL of 10−15 M is required to reveal oncological and infectious diseases at an early stage.
Yuri D. Ivanov +3 more
doaj +1 more source