Academic literature on the topic 'Development of an optical fibre probe for mercury'

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Journal articles on the topic "Development of an optical fibre probe for mercury"

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Pérez-Hernández, Javier, Josep Albero, Eduard Llobet, et al. "Mercury optical fibre probe based on a modified cladding of sensitised Al2O3 nano-particles." Sensors and Actuators B: Chemical 143, no. 1 (2009): 103–10. http://dx.doi.org/10.1016/j.snb.2009.08.051.

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Ito, Y., G. Katano, H. Harano, et al. "Development of a tiny neutron probe with an optical fibre for BNCT." Radiation Protection Dosimetry 110, no. 1-4 (2004): 619–22. http://dx.doi.org/10.1093/rpd/nch136.

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Raval, M., D. Klenerman, T. Rayment, Y. Korchev, and M. Lab. "Development of a Combined Scanning Ion-Conductance and Nearfield Optical Microscope to Image Living Cells." Microscopy and Microanalysis 5, S2 (1999): 976–77. http://dx.doi.org/10.1017/s1431927600018201.

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It is important to be able to image biological samples in a manner that is non-invasive and allows the sample to retain its functionality during imaging.A member of the SPM (scanning probe microscopy) family, SNOM (scanning near-field optical microscopy), has emerged as a technique that allows optical and topographic imaging of biological samples whilst satisfying the above stated criteria. The basic operating principle of SNOM is as follows. Light is coupled down a fibre-optic probe with an output aperture of sub-wavelength dimensions. The probe is then scanned over the sample surface from a
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Nguyen, T. Hien, Tong Sun, and Kenneth T. V. Grattan. "A Turn-On Fluorescence-Based Fibre Optic Sensor for the Detection of Mercury." Sensors 19, no. 9 (2019): 2142. http://dx.doi.org/10.3390/s19092142.

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The design, development, and evaluation of an optical fibre sensor for the detection of Hg2+ in aqueous media are discussed in detail in this paper. A novel fluorescent polymeric material for Hg2+ detection, based on a coumarin derivative (acting as the fluorophore) and an azathia crown ether moiety (acting as the mercury ion receptor), has been synthesized. The fluorophore was covalently immobilized onto the fibre surface by polymerisation using the ion imprinting technique and exhibited a significant increase in fluorescence intensity in response to Hg2+ via a photoinduced electron transfer
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Almadidy, Amer, James Watterson, Paul AE Piunno, Inge V. Foulds, Paul A. Horgen, and Ulrich Krull. "A fibre-optic biosensor for detection of microbial contamination." Canadian Journal of Chemistry 81, no. 5 (2003): 339–49. http://dx.doi.org/10.1139/v03-070.

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A fibre-optic biosensor is described for detection of genomic target sequences from Escherichia coli. A small portion of the LacZ DNA sequence is the basis for selection of DNA probe molecules that are produced by automated nucleic acid synthesis on the surface of optical fibres. Fluorescent intercalating agents are used to report the presence of hybridization events with target strands. This work reviews the fundamental design criteria for development of nucleic acid biosensors and reports a preliminary exploration of the use of the biosensor for detection of sequences that mark the presence
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Perron, Christophe, Christian Katlein, Simon Lambert-Girard, et al. "Development of a diffuse reflectance probe for in situ measurement of inherent optical properties in sea ice." Cryosphere 15, no. 9 (2021): 4483–500. http://dx.doi.org/10.5194/tc-15-4483-2021.

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Abstract. Detailed characterization of the spatially and temporally varying inherent optical properties (IOPs) of sea ice is necessary to better predict energy and mass balances, as well as ice-associated primary production. Here we present the development of an active optical probe to measure IOPs of a small volume of sea ice (dm3) in situ and non-destructively. The probe is derived from the diffuse reflectance method used to measure the IOPs of human tissues. The instrument emits light into the ice by the use of an optical fibre. Backscattered light is measured at multiple distances away fro
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Kandurova, Ksenia, Viktor Dremin, Evgeny Zherebtsov, et al. "Fiber-Optic System for Intraoperative Study of Abdominal Organs during Minimally Invasive Surgical Interventions." Applied Sciences 9, no. 2 (2019): 217. http://dx.doi.org/10.3390/app9020217.

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The paper presents the results of experimental measurements of endogenous fluorescence and blood perfusion in patients with pathology of the organs of hepatopancreatoduodenal area in vivo. A custom setup combining channels for fluorescence spectroscopy (excitation wavelengths of 365 nm and 450 nm) and laser Doppler flowmetry (1064 nm) with fibre optical probe for nondestructive laparoscopic measurements has been developed and applied during minimally invasive operation procedure. Preliminary measurements with two aforementioned channels have been performed at specified excitation wavelengths.
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Apretna, Thibault, Sylvain Massabeau, Charlie Gréboval, et al. "Few picosecond dynamics of intraband transitions in THz HgTe nanocrystals." Nanophotonics 10, no. 10 (2021): 2753–63. http://dx.doi.org/10.1515/nanoph-2021-0249.

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Abstract Optoelectronic devices based on intraband or intersublevel transitions in semiconductors are important building blocks of the current THz technology. Large nanocrystals (NCs) of Mercury telluride (HgTe) are promising semiconductor candidates owing to their intraband absorption peak tunable from 60 THz to 4 THz. However, the physical nature of this THz absorption remains elusive as, in this spectral range, quantum confinement and Coulomb repulsion effects can coexist. Further, the carrier dynamics at low energy in HgTe NCs, which strongly impact the performances of THz optoelectronic d
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Bauke, Stephan, Kai Golibrzuch, Frank Rotter, Hainer Wackerbarth, Olaf Thiele, and Thomas Berg. "Quantitative, time-resolved detection of CH<sub>4</sub> concentrations in flows for injection analysis in CNG engines using IR absorption." Journal of Sensors and Sensor Systems 6, no. 1 (2017): 185–98. http://dx.doi.org/10.5194/jsss-6-185-2017.

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Abstract. The reduction of CO2 and other greenhouse gas emissions is an important driving force for the development of modern engines. Especially in the transport sector, the use of alternative fuels like methane, the main component of compressed natural gas (CNG), is an applied measure to achieve this goal. This work describes the development of an optical measurement system for accurate quantification of CH4 densities in gas flows based on broadband absorption of infrared light, i.e. non-dispersive IR absorption spectroscopy (NDIR). We demonstrate the capability of the system to achieve high
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NI, WEI-TOU. "EMPIRICAL FOUNDATIONS OF THE RELATIVISTIC GRAVITY." International Journal of Modern Physics D 14, no. 06 (2005): 901–21. http://dx.doi.org/10.1142/s0218271805007139.

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In 1859, Le Verrier discovered the mercury perihelion advance anomaly. This anomaly turned out to be the first relativistic-gravity effect observed. During the 141 years to 2000, the precisions of laboratory and space experiments, and astrophysical and cosmological observations on relativistic gravity have been improved by 3 orders of magnitude. In 1999, we envisaged a 3–6 order improvement in the next 30 years in all directions of tests of relativistic gravity. In 2000, the interferometric gravitational wave detectors began their runs to accumulate data. In 2003, the measurement of relativist
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Dissertations / Theses on the topic "Development of an optical fibre probe for mercury"

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Pérez, Hernández Javier. "Development of an optical fiber probe for mercury detection." Doctoral thesis, Universitat Rovira i Virgili, 2008. http://hdl.handle.net/10803/8493.

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El mercurio presenta una alta toxicidad, pudiendo causar adversos efectos en la salud humana. Los procedimientos recomendados para la detección analítica de metales pesados no son apropiados para aquellas aplicaciones donde se requiere un bajo coste y equipos ligeros que permitan realizar medidas de campo. Por el contrario, los sensores opto-químicos son una tecnología con un alto potencial para el desarrollo de dispositivos detectores de bajo coste y dimensiones reducidas. Esta Tesis describe los aspectos más relevantes en el desarrollo de una sonda opto-química basada en fibra óptica para la
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Conference papers on the topic "Development of an optical fibre probe for mercury"

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Berneschi, S., C. D'Andrea, F. Baldini, et al. "Towards the development of a glass optical fibre probe for SERS applications." In 20th Italian National Conference on Photonic Technologies (Fotonica 2018). Institution of Engineering and Technology, 2018. http://dx.doi.org/10.1049/cp.2018.1677.

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Cheah, S. C., H. Iacovides, D. C. Jackson, H. Ji, and B. E. Launder. "LDA Investigation of the Flow Development Through Rotating U-DUCTS." In ASME 1994 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1994. http://dx.doi.org/10.1115/94-gt-226.

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This paper reports results from the use of laser Doppler anemometry (LDA) to measure the mean and the fluctuating flow field in a U-bend of strong curvature, Rc/D = 0.65, that is either stationary or rotating in orthogonal mode (the axis of rotation being parallel to the axis of curvature). The data acquisition system enables a stationary optical fibre probe to collect flow data from a rotating U-bend sweeping past it. Three cases have been examined all concerning a flow Reynolds number of 100,000; a stationary case, a case of positive rotation (the pressure side of the duct coincides with the
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