Relevant bibliographies by topics / Distributed high temperature sensing

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Distributed high temperature sensing'

Author: Grafiati
Published: 4 June 2021
Last updated: 8 February 2022

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Journal articles on the topic "Distributed high temperature sensing"

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Kuncha, Syam Prasad, Balaji Chakravarthy, Harishankar Ramachandran, and Balaji Srinivasan. "Distributed High Temperature Sensing Using Fiber Bragg Gratings." International Journal of Optomechatronics 2, no. 1 (April 11, 2008): 4–15. http://dx.doi.org/10.1080/15599610801985483.

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Liu, Bo, Zhihao Yu, Cary Hill, Yujie Cheng, Daniel Homa, Gary Pickrell, and Anbo Wang. "Sapphire-fiber-based distributed high-temperature sensing system." Optics Letters 41, no. 18 (September 15, 2016): 4405. http://dx.doi.org/10.1364/ol.41.004405.

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Buck, C. R., and S. E. Null. "Modeling insights from distributed temperature sensing data." Hydrology and Earth System Sciences Discussions 10, no. 8 (August 1, 2013): 9999–10034. http://dx.doi.org/10.5194/hessd-10-9999-2013.

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Abstract. Distributed Temperature Sensing (DTS) technology can collect abundant high resolution river temperature data over space and time to improve development and performance of modeled river temperatures. These data can also identify and quantify thermal variability of micro-habitat that temperature modeling and standard temperature sampling do not capture. This allows researchers and practitioners to bracket uncertainty of daily maximum and minimum temperature that occurs in pools, side channels, or as a result of cool or warm inflows. This is demonstrated in a reach of the Shasta River in Northern California that receives irrigation runoff and inflow from small groundwater seeps. This approach highlights the influence of air temperature on stream temperatures, and indicates that physically-based numerical models may under-represent this important stream temperature driver. This work suggests DTS datasets improve efforts to simulate stream temperatures and demonstrates the utility of DTS to improve model performance and enhance detailed evaluation of hydrologic processes.
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de Jong, S. A. P., J. D. Slingerland, and N. C. van de Giesen. "Fiber optic distributed temperature sensing for the determination of air temperature." Atmospheric Measurement Techniques Discussions 7, no. 6 (June 23, 2014): 6287–98. http://dx.doi.org/10.5194/amtd-7-6287-2014.

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Abstract. This paper describes a method to correct for the effect of solar radiation in atmospheric Distributed Temperature Sensing (DTS) applications. By using two cables with different diameters, one can determine what temperature a zero diameter cable would have. Such virtual cable would not be affected by solar heating and would take on the temperature of the surrounding air. The results for a pair of black cables and a pair of white cables were very good. The correlations between standard air temperature measurements and air temperatures derived from both colors had a high correlation coefficient (r2 = 0.99). A thin white cable measured temperatures that were close to air temperature. The temperatures were measured along horizontal cables but the results are especially interesting for vertical atmospheric profiling.
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Dong, Yongkang. "High-Performance Distributed Brillouin Optical Fiber Sensing." Photonic Sensors 11, no. 1 (January 22, 2021): 69–90. http://dx.doi.org/10.1007/s13320-021-0616-7.

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AbstractThis paper reviews the recent advances on the high-performance distributed Brillouin optical fiber sensing, which include the conventional distributed Brillouin optical fiber sensing based on backward stimulated Brillouin scattering and two other novel distributed sensing mechanisms based on Brillouin dynamic grating and forward stimulated Brillouin scattering, respectively. As for the conventional distributed Brillouin optical fiber sensing, the spatial resolution has been improved from meter to centimeter in the time-domain scheme and to millimeter in the correlation-domain scheme, respectively; the measurement time has been reduced from minute to millisecond and even to microsecond; the sensing range has reached more than 100 km. Brillouin dynamic grating can be used to measure the birefringence of a polarization-maintaining fiber, which has been explored to realize distributed measurement of temperature, strain, salinity, static pressure, and transverse pressure. More recently, forward stimulated Brillouin scattering has gained considerable interest because of its capacity to detect mechanical features of materials surrounding the optical fiber, and remarkable works using ingenious schemes have managed to realize distributed measurement, which opens a brand-new way to achieve position-resolved substance identification.
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Zhang, Zhongshu, Hao Wu, Can Zhao, and Ming Tang. "High-Performance Raman Distributed Temperature Sensing Powered by Deep Learning." Journal of Lightwave Technology 39, no. 2 (January 15, 2021): 654–59. http://dx.doi.org/10.1109/jlt.2020.3032150.

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Höbel, M., J. Ricka, M. Wüthrich, and Th Binkert. "High-resolution distributed temperature sensing with the multiphoton-timing technique." Applied Optics 34, no. 16 (June 1, 1995): 2955. http://dx.doi.org/10.1364/ao.34.002955.

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Chen, Tong, Qingqing Wang, Rongzhang Chen, Botao Zhang, Charles Jewart, Kevin P. Chen, Mokhtar Maklad, and Phillip R. Swinehart. "Distributed high-temperature pressure sensing using air-hole microstructural fibers." Optics Letters 37, no. 6 (March 12, 2012): 1064. http://dx.doi.org/10.1364/ol.37.001064.

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de Jong, S. A. P., J. D. Slingerland, and N. C. van de Giesen. "Fiber optic distributed temperature sensing for the determination of air temperature." Atmospheric Measurement Techniques 8, no. 1 (January 15, 2015): 335–39. http://dx.doi.org/10.5194/amt-8-335-2015.

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Abstract. This paper describes a method to correct for the effect of solar radiation in atmospheric distributed temperature sensing (DTS) applications. By using two cables with different diameters, one can determine what temperature a zero diameter cable would have. Such a virtual cable would not be affected by solar heating and would take on the temperature of the surrounding air. With two unshielded cable pairs, one black pair and one white pair, good results were obtained given the general consensus that shielding is needed to avoid radiation errors (WMO, 2010). The correlations between standard air temperature measurements and air temperatures derived from both cables of colors had a high correlation coefficient (r2=0.99) and a RMSE of 0.38 °C, compared to a RMSE of 2.40 °C for a 3.0 mm uncorrected black cable. A thin white cable measured temperatures that were close to air temperature measured with a nearby shielded thermometer (RMSE of 0.61 °C). The temperatures were measured along horizontal cables with an eye to temperature measurements in urban areas, but the same method can be applied to any atmospheric DTS measurements, and for profile measurements along towers or with balloons and quadcopters.
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Jderu, Alin, Marius Enachescu, and Dominik Ziegler. "Mass Flow Monitoring by Distributed Fiber Optical Temperature Sensing." Sensors 19, no. 19 (September 25, 2019): 4151. http://dx.doi.org/10.3390/s19194151.

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We developed a novel method to monitor mass flow based on distributed fiber optical temperature sensing. Examination of the temporal and spatial temperature distribution along the entire length of a locally heated fluidic conduit reveals heat flow under forced convection. Our experimental results are in good agreement with two-dimensional finite element analysis that couples fluid dynamic and heat transfer equations. Through analysis of the temperature distribution bidirectional flow rates can be measured over three orders of magnitude. The technique is not flow intrusive, works in harsh conditions, including high-temperatures, high pressures, corrosive media, and strong electromagnetic environments. We demonstrate a first experimental implementation on a short fluidic system with a length of one meter. This range covers many applications such as low volume drug delivery, diagnostics, as well as process and automation technology. Yet, the technique can, without restrictions, be applied to long range installations. Existing fiber optics infrastructures, for instance on oil pipelines or down hole installations, would only require the addition of a heat source to enable reliable flow monitoring capability.
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Dissertations / Theses on the topic "Distributed high temperature sensing"

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Frazier, Janay Amber Wright. "High-Definition Raman-based Distributed Temperature Sensing." Thesis, Virginia Tech, 2018. http://hdl.handle.net/10919/95934.

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Distributed Temperature Sensing (DTS) has been used in a variety of different applications. Its ability to detect temperature fluctuations along fiber optic lines that stretch for several kilometers has made it a popular topic in various fields of science, engineering, and technology. From pre-fire detection to ecological monitoring, DTS has taken a vital role in scientific research. DTS uses the principle of backscattering by three different spectral components, e.g., Rayleigh scattering, Brillouin scattering, and Raman scattering. Although there have been various improvements to DTS, its slow response time and poor spatial resolution have been hard to overcome. Its repetition rate is low because the pulse must travel the distance of the fiber optic line and return to the detector to record the temperature change along the fiber. A spatial resolution of 7.4 cm with a response time as low as 1 second and a temperature resolution of the 0.196 ℃ is achieved from the current Raman-based DTS system. This research proves that high-spatial resolution can be obtained with the use of a Silicon Avalanche Photodetector with a 1 GHz bandwidth.
MS
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Liu, Bo. "Sapphire Fiber-based Distributed High-temperature Sensing System." Diss., Virginia Tech, 2016. http://hdl.handle.net/10919/82741.

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From the monitoring of deep ocean conditions to the imaging and exploration of the vast universe, optical sensors are playing a unique, critical role in all areas of scientific research. Optical fiber sensors, in particular, are not only widely used in daily life such as for medical inspection, structural health monitoring, and environmental surveillance, but also in high-tech, high-security applications such as missile guidance or monitoring of aircraft engines and structures. Measurements of physical parameters are required in harsh environments including high pressure, high temperature, highly electromagnetically-active and corrosive conditions. A typical example is fossil fuel-based power plants. Unfortunately, current optical fiber sensors for high-temperature monitoring can work only for single point measurement, as traditional fully-distributed temperature sensing techniques are restricted for temperatures below 800°C due to the limitation of the fragile character of silica fiber under high temperature. In this research, a first-of-its-kind technology was developed which pushed the limits of fully distributed temperature sensing (DTS) in harsh environments by exploring the feasibility of DTS in optical sapphire waveguides. An all sapphire fiber-based Raman DTS system was demonstrated in a 3-meters long sapphire fiber up to a temperature of 1400°C with a spatial resolution of 16.4cm and a standard deviation of a few degrees Celsius. In this dissertation, the design, fabrication, and testing of the sapphire fiber-based Raman DTS system are discussed in detail. The plan and direction for future work are also suggested with an aim for commercialization.
Ph. D.
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Wang, Jing. "Distributed Pressure and Temperature Sensing Based on Stimulated Brillouin Scattering." Thesis, Virginia Tech, 2013. http://hdl.handle.net/10919/78066.

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Brillouin scattering has been verified to be an effective mechanism in temperature and strain sensing. This kind of sensors can be applied to civil structural monitoring of pipelines, railroads, and other industries for disaster prevention. This thesis first presents a novel fiber sensing scheme for long-span fully-distributed pressure measurement based on Brillouin scattering in a side-hole fiber. After that, it demonstrates that Brillouin frequency keeps linear relation with temperature up to 1000°C; Brillouin scattering is a promising mechanism in high temperature distributed sensing. A side-hole fiber has two longitudinal air holes in the fiber cladding. When a pressure is applied on the fiber, the two principal axes of the fiber birefringence yield different Brillouin frequency shifts in the Brillouin scattering. The differential Brillouin scattering continuously along the fiber thus permits distributed pressure measurement. Our sensor system was designed to analyze the Brillouin scattering in the two principal axes of a side-hole fiber in time domain. The developed system was tested under pressure from 0 to 10,000 psi for 100m and 600m side-hole fibers, respectively. Experimental results show fibers with side holes of different sizes possess different pressure sensitivities. The highest sensitivity of the measured pressure induced differential Brillouin frequency shift is 0.0012MHz/psi. The demonstrated spatial resolution is 2m, which maybe further improved by using shorter light pulses.
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Dhliwayo, Jabulani. "Stimulated Brillouin scattering for distributed temperature sensing." Thesis, University of Kent, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.242858.

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Read, Tom Oliver Trevett. "Applications of distributed temperature sensing in subsurface hydrology." Thesis, University of East Anglia, 2016. https://ueaeprints.uea.ac.uk/59401/.

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In the study of dynamic subsurface processes there is a need to monitor temperature and groundwater fluxes efficiently in both time and space. Distributed Temperature Sensing has recently become more accessible to researchers in Earth Sciences, and allows temperatures to be measured simultaneously, at small intervals, and over large distances along fibre optic cables. The capability of DTS in conjunction with heat injection to detect groundwater fluxes, is assessed in this thesis using a combination of numerical modelling, laboratory tests, and field trials at the Ploemeur research site in Brittany, France. In particular, three methodological approaches are developed: thermal dilution tests, point heating, and the hybrid cable method. A numerical model was developed to assess the sensitivity range of thermal dilution tests to groundwater flow. Thermal dilution tests undertaken at Ploemeur showed lithological contrasts, and allowed the apparent thermal conductivity to be estimated in-situ, but failed to detect previously identified transmissive fractures. The use of DTS to monitor in-well vertical flow is then investigated. This is first using a simple experiment deploying point heating (T-POT), which tracks a parcel of heated water vertically through the borehole. The method allowed for the relatively quick estimation of velocities in the well. The use of heated fibre optics is then trialled, and through a field test was shown to be sensitive to in-well vertical flow. However, the data suffered from a number of artefacts related to the cable installation. To address this, a hybrid cable system was deployed in a flume to determine the sensitivity relationship with flow angle and electrical power input. Additionally, a numerical model was developed, which suggested a lower limit for velocity estimation due to thermal buoyancy. With the emergence of Distributed Acoustic Sensing, fibre optics may become an increasingly practicable and complete solution for monitoring subsurface processes.
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Moa, Sandberg. "Distributed Temperature Sensing för kontroll av inläckage i spillvattenledningar." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-445633.

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Infiltration and inflow (I/I) are common problems in the foul sewer system. A method to detect I/I that is not commonly used in Sweden is DTS, Distributed Temperature Sensing. DTS is based on continuous measurements of temperature over a predetermined distance in the sewer system. The I/I is detected as temperature differences in the temperature data that is registered in the sewer system. The measurements often take place over a couple of weeks or months in the sewer system. The aim of this project was to review previous studies where DTS was used to detect I/I in foul sewers.  Data from a wastewater treatment plant in Umeå together with meteorological data were analysed to be able to visualize the problem of I/I and then suggest how DTS can be applied in Sweden. Both automated and visual analyses was performed to find if there were any relationships between wastewater temperature, wastewater flow and precipitation.   The outcome was that it is possible to apply DTS in the foul sewages to detect I/I. DTS seemed to be able to detect I/I in all types of sewage material, however it is dependent on that the I/I temperature differs from the temperature of the foul sewage water. It is an expensive technique but if it is meant to be used many times to analyse bigger areas it can be worth the costs. If larger areas are to be investigated, the costs for DTS and current methods are approximately the same.  At the wastewater treatment plant in Umeå, a slight relationship between wastewater temperature, wastewater flow and precipitation could be detected. The degree of dilution was calculated to 1,34 which means that about 25% of the sewage water is I/I. The conclusion from this was that I/I exists in the foul sewers in Umeå. The leakage points could not be located with this analysis. DTS could be a possible method to detect the leakage points of I/I in foul sewers. Unlike smoke tests, colouring and video-inspection of the sewers, DTS might be able to detect smaller leakage points.
Tillskottsvatten är ett vanligt problem i spillvattenledningsnätet. DTS, Distributed Temperature Sensing är en metod som inte är vanlig i Sverige för kontroll av spillvattenledningar. Tekniken bygger på kontinuerliga temperaturmätningar under en tidsperiod över en förutbestämd sträcka och registrerar temperaturavvikelser som kan uppstå i samband med inläckage av tillskottsvatten. Syftet med projektet var att granska tidigare utförda studier med DTS för att ta reda på hur tekniken kan användas för att lokalisera inläckage i spillvattenledningar. För att vidare illustrera problematiken med tillskottsvatten i spillvattennätet samt föreslå hur DTS kan appliceras i Sverige genomfördes en analys av mätdata på inkommande vatten till reningsverket på Ön, Umeå. Både visuella och automatiserade analyser genomfördes där tolkningar gjordes utifrån mätdata från reningsverket tillsammans med nederbörds- och lufttemperaturdata. En regressionsanalys genomfördes som automatiserad analys för att undersöka eventuella samband mellan spillvattentemperatur, spillvattenflöde och nederbörd. Projektet inleddes med en litteraturstudie där det utreddes hur DTS fungerar teoretiskt och praktiskt. Litteraturstudien visade att DTS är praktiskt möjligt att applicera i spillvattenledningsnätet för att leta inläckagepunkter för tillskottsvatten. Inläckage kan registreras som ökningar eller sänkningar i spillvattentemperaturen beroende på lufttemperaturen. Den är inte beroende av material på ledningarna men däremot är DTS beroende av att tillskottsvattnet är av annan temperatur än spillvattnet. Det är en dyr teknik men kan vara värt investeringskostnaderna om mätningar tänkt ske många gånger under längre perioder. Vid kontroll av större områden med hjälp av röktest kombinerat med färgning av vatten och filmning är kostnaderna ungefär de samma. Utifrån mätdatan från reningsverket och nederbördsdatan från Umeå universitet kunde vissa samband påvisas mellan spillvattentemperatur, spillvattenflöde och nederbörd. Ett visst samband kunde även urskiljas mellan spillvattentemperatur och spillvattenflöde. Utspädningsgraden av spillvattnet beräknades till 1,34 vilket innebär att cirka 25% av vattnet i spillvattenledningarna är tillskottsvatten. Slutsatsen som kunde dras utifrån detta var att tillskottsvatten existerar i spillvattenledningsnätet som leder till reningsverket på Ön i Umeå. Däremot kunde inga slutsatser dras för att säga var inläckage av tillskottsvatten sker. DTS skulle kunna appliceras i ledningsnäten för att undersöka närmare var inläckagepunkterna är och tillskillnad från rökning, färgning av vatten och filmning som används idag kan DTS sannolikt upptäcka fler typer av inläckage.
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Koob, Christopher E. "High temperature fiber optic strain sensing." Thesis, This resource online, 1991. http://scholar.lib.vt.edu/theses/available/etd-02132009-171339/.

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Ek, Simon. "Distributed Temperature Sensing Using Phase-Sensitive Optical Time Domain Reflectometry." Thesis, KTH, Tillämpad fysik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-285902.

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This thesis explores and evaluates the temperature measuring capabilities of a phase-sensitive optical time-domain reflectometer (φ-OTDR), which exploits Rayleigh backscattering in normal single mode optical fibers. The device is constructed and its setup explained, and a protocol for making temperature measurements with it is developed. Performance tests are made and the device is shown to achieve fully distributed temperature measurements on fibers hundreds of meters in length with a spatial resolution of 1 m and a temperature resolution of 0.1 K. In addition, the capabilities of the device to measure normal strain in the measurement fiber are tested using the same approach, albeit with less success. The device is capable of very precise measurements, making it very sensitive to the environmental conditions around the measuring fiber but also susceptible to disturbances. Some discussion is had on how to avoid or deal with these disturbances. Furthermore, the technique is shown to be able to run in conjunction with other φ-OTDR measurement techniques from the same device simultaneously.
Det här examensarbetet utforskar och utvärderar förmågorna att mäta temperatur hos en fas-känslig optisk tidsdomän-reflektometer (φ-OTDR), som utnyttjar bakåtriktad Rayleigh-spridning i vanliga optiska singelmodfibrer. Anordningen konstrueras och dess komponentstruktur förklaras, och ett protokoll tas fram för att utföra mätningar med den. Prestandatester utförs och anordningen visas kapabel att göra fullt distribuerade temperaturmätningar längs hundratals meter långa fibrer, med en rymdsupplösning på 1 m och en temperaturupplösning på 0.1 K. Dessutom testas förmågan att mäta normaltöjning hos testfibern med samma metod, dock med mindre framgång. Anordningen är väldigt känslig för förhållandena i omgivningen runt mätningsfibern, vilket gör den kapabel till mätningar med mycket hög precision, men också mottaglig för störningar. Lite diskussion hålls kring hur dessa störningar kan undvikas eller hanteras. Vidare visas att mätningstekniken kan köras samtidigt som andra φ-OTDR-baserade tekniker från samma anordning.
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Carver, Robert. "Inferring hydrogeologic processes with distributed temperature sensing in Indian River Bay, Delaware." Thesis, McGill University, 2013. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=114580.

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The interaction between coastal aquifers and estuaries governs many important ecological and water quality processes. The purpose of this research is to use distributed temperature sensing (DTS) in the Indian River Bay estuary, Delaware, to detect differences in variance and mean of temperature at the sediment-water interface. DTS uses the scatter of laser light in a fibre optic cable as a means to repeatedly measure temperature to 0.1˚C at 1m intervals along the length of the cable. Low variances in temperature are interpreted as being the result of the moderating thermal influence of groundwater discharge. From September 16 to 19 2011, two kilometres of DTS cable were deployed in the near shore environment of Holts Landing State Park. Variance increases with distance from shore as the power function s2=-33.63(d ( 1.012)) + 2.685 (r2=0.78). Narrow zones with significantly lower temperature variances (Kruskal-Wallis with Tukey's HSD, p<0.05) and means (Friedman with Tukey's HSD, p<0.05) than adjoining zones exist within the near shore area. Zones of high variance at the western and eastern edges of the study site are associated with ancient shallow peat-filled valleys capped with fine sediments. A broad zone of low variance next to the western valley is interpreted to imply that over-pressured fresh groundwater is discharging at the paleo-valley margins, creating a pattern of submarine groundwater discharge which differs from existing models. An attempt to use diurnal temperature signal amplitudes at various sediment depths to calculate vertical porewater flux were unsuccessful, likely due to rapidly-rising temperatures, interference between tidal and diurnal signals, and a short measurement period. DTS appears to hold promise in detecting temperature patterns simultaneously across different scales, and can be used to rapidly fill in gaps of knowledge in hydrogeologic systems.
Les interactions entre les aquifères côtiers et les estuaires régissent beaucoup de processus écologiques importants qui ont des implications sur la qualité de l'eau souterraine et marine. La compréhension de la nature et de l'ampleur de ces interactions est devenu un foyer de recherches, facilité par des avances récentes dans notre capacité de détecter la décharge submersible d'eaux souterraines. Cette étude emploie la détection distribuée de température (DDT) dans l'estuaire de la baie Indian River, sur la côte du Delaware, afin de détecter des différences dans la variance et la moyenne de la température des eaux à l'interface entre la baie et le sédiment dans la zone près du rivage du parc Holts Landing. Des variances basses sont interprétées comme étant le résultat de l'influence de modération des eaux souterraines, compatible avec les autres études, et le fait que les zones peu profondes près du rivage, qui devraient éprouver plus de variation de la température que des zones plus profondes, sont au contraire plus stables. La variance augmente avec la distance du rivage à mesure que la fonction s2=-33.63 (d(- 1.012)) +2.685 (r2=0.78). Près du rivage, il y a des endroits étroits avec des variances (Kruskal-Wallis avec Tukey's HSD, p<0.05) et moyens (Friedman avec Tukey's HSD, p<0.05) sensiblement plus basse que leurs zones proximales. Des zones de la variance élevée aux bords a l'ouest et l'est de l'emplacement d'étude sont associées aux anciennes vallées peu profondes remplies de la tourbe et maintenant couvertes avec les sédiments fins. Une large bande de bas désaccord à côté de la vallée occidentale implique que les eaux souterraines fraîches sosu pression élevée coulent aux marges de la vallée, créant un modèle du SGD qui n'équipe pas des modèles précédents. Une tentative d'employer des amplitudes de signal de la température à de diverses profondeurs de sédiment pour calculer le flux vertical d'eau interstitielle a échoué, probablement en raison des temperatures croissantes, interférence entre les signaux de la marée et diurne, et une période d'échantillon courte. DDT semble tenir la promesse en détectant des tendences de la température à travers différentes gammes simultanément, et peut être employé pour trouver les pieces manquantes de la connaissance des systèmes hydrogéologiques.
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Wang, Haichao. "A fibre optic system for distributed temperature sensing based on raman scattering." Thesis, University of Bradford, 2012. http://hdl.handle.net/10454/5498.

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This thesis is based on a research project to monitor the temperature profile along a power cable using the fibre optic Distributed Temperature Sensing (DTS) technology. Based on the temperature measured by a DTS system, real time condition monitoring of power cables can be achieved. In this thesis, there are three main research themes. 1. Develop a DTS system for industrial applications. The entire hardware system and measuring software are developed to be an industrial product. Multiple functions are provided for the convenience of users to conduct temperature monitoring, temperature history logging and off-line simulation. 2. Enhance the robustness of the DTS system. An algorithm for signal compensation is developed to eliminate the signal fluctuation due to disturbance from the hardware and its working environment. It ensures robustness of the system in industrial environments and applicability to different system configurations. 3. Improve the accuracy of the DTS system. A calibration algorithm based on cubic spline fitting is developed to cope with non-uniform fibre loss in the system, which greatly improved the accuracy of the temperature decoding in real applications with unavoidable nonlinear characteristics. The developed DTS system and the algorithms have been verified by continuous experiments for about one year and achieved a temperature resolution of 0.1 degree Celsius, a spatial resolution of 1 meter, and a maximum error of 2 degree Celsius in an optic fibre with the length of 2910 metres.
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Books on the topic "Distributed high temperature sensing"

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Maturi, Eileen. An experimental technique for producing moisture corrected imagery from 1 km Advanced Very High Resolution Radiometer (AVHRR) data. Washington, D.C: U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, National Environmental Satellite, Data, and Information Service, 1986.

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Maturi, Eileen. An experimental technique for producing moisture corrected imagery from 1 km advanced very high resolution radiometer (AVHRR) data. Washington, D.C: U.S. Dept. of Commerce, 1986.

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Menzel, W. Paul. Determination of atmospheric moisture structure and infrared cooling rates from high resolution MAMS radiance data: Final report on NASA contract NAS8-36169 for the period of 7 November 1986 to 18 September 1991. Madison, Wis: Cooperative Institute for Meteorological Satellite Studies (CIMSS), University of Wisconsin, 1991.

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Carlson, Toby N. A remotely sensed index of deforestation/urbanization for use in climate models: Annual performance report for the period 1 January 1995 - 31 December 1995. University Park, PA: Pennsylvania State University, 1995.

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Carlson, Toby N. A remotely sensed index of deforestation/urbanization for use in climate models: Annual performance report for the period 1 January 1995 - 31 December 1995. University Park, PA: Pennsylvania State University, 1995.

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1947-, Dakin John, ed. The Distributed fibre optic sensing handbook. Kempston, Bedford, UK: IFS Publications, 1990.

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United States. National Aeronautics and Space Administration. Scientific and Technical Information Program., ed. Strain sensing technology for high temperature applications. [Washington, DC]: National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Program, 1993.

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Carl, Bouvier, and United States. National Aeronautics and Space Administration., eds. X-33/RLV: Reusable cryogenic tank VHM using fiber optic distributed sensing technology. [Washington, DC: National Aeronautics and Space Administration, 1998.

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Carl, Bouvier, and United States. National Aeronautics and Space Administration., eds. X-33/RLV: Reusable cryogenic tank VHM using fiber optic distributed sensing technology. [Washington, DC: National Aeronautics and Space Administration, 1998.

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Carl, Bouvier, and United States. National Aeronautics and Space Administration., eds. X-33/RLV: Reusable cryogenic tank VHM using fiber optic distributed sensing technology. [Washington, DC: National Aeronautics and Space Administration, 1998.

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Book chapters on the topic "Distributed high temperature sensing"

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Wanser, Keith H., Michael Haselhuhn, and Michael Lafond. "High Temperature Distributed Strain and Temperature Sensing Using OTDR." In Applications of Fiber Optic Sensors in Engineering Mechanics, 194–209. New York, NY: American Society of Civil Engineers, 1993. http://dx.doi.org/10.1061/9780872628953.ch13.

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Boiarski, A. A. "Distributed Fiber Optic Temperature Sensing." In Applications of Fiber Optic Sensors in Engineering Mechanics, 210–24. New York, NY: American Society of Civil Engineers, 1993. http://dx.doi.org/10.1061/9780872628953.ch14.

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Clarke, David R. "Luminescence Sensing of Temperature in Oxides." In High-Performance Ceramics V, 1–4. Stafa: Trans Tech Publications Ltd., 2008. http://dx.doi.org/10.4028/0-87849-473-1.1.

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Murphy, K. A., C. Koob, M. Miller, S. Feth, and R. O. Claus. "Optical Fiber-Based Sensing of Strain and Temperature at High Temperature." In Review of Progress in Quantitative Nondestructive Evaluation, 1231–37. Boston, MA: Springer US, 1991. http://dx.doi.org/10.1007/978-1-4615-3742-7_13.

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Priyadarisshini, Balasoundirame, Dhanabalan Sindhanaiselvi, and Thangavelu Shanmuganantham. "Performance Analysis of High Sensitive Microcantilever for Temperature Sensing." In Soft Computing Systems, 641–48. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-1936-5_65.

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Dinh, Toan, Nam-Trung Nguyen, and Dzung Viet Dao. "Future Prospects of SiC Thermoelectrical Sensing Devices." In Thermoelectrical Effect in SiC for High-Temperature MEMS Sensors, 107–15. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-2571-7_7.

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Varga, Rastislav, Peter Klein, Rudolf Sabol, Kornel Richter, Radovan Hudak, Irenej Polaček, Dušan Praslicka, et al. "Magnetically Bistable Microwires: Properties and Applications for Magnetic Field, Temperature, and Stress Sensing." In High Performance Soft Magnetic Materials, 169–212. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-49707-5_8.

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Ogawa, K., Y. Ozawa, H. Kawakami, T. Tsutsui, and S. Yamamoto. "A Fiber-Optic Distributed Temperature Sensor with High Distance Resolution." In Springer Proceedings in Physics, 544–51. Berlin, Heidelberg: Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-75088-5_81.

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Bernini, Romeo, Aldo Minardo, and Luigi Zeni. "Distributed Strain and Temperature Sensing at CM-Scale Spatial Resolution by BOFDA." In Lecture Notes in Electrical Engineering, 235–39. Boston, MA: Springer US, 2011. http://dx.doi.org/10.1007/978-1-4614-0935-9_40.

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Becker, François, and Zhao-Liang Li. "Infrared Remote Sensing of Surface Temperature and Surface Spectral Emissivities." In High Spectral Resolution Infrared Remote Sensing for Earth’s Weather and Climate Studies, 265–84. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-642-84599-4_18.

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Conference papers on the topic "Distributed high temperature sensing"

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Scurti, Federico, and Justin Schwartz. "Optical fiber distributed sensing for high temperature superconductor magnets." In 25th International Conference on Optical Fiber Sensors, edited by Youngjoo Chung, Wei Jin, Byoungho Lee, John Canning, Kentaro Nakamura, and Libo Yuan. SPIE, 2017. http://dx.doi.org/10.1117/12.2265947.

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Julian, Princy L., Mahmoud Farhadiroushan, Vincent A. Handerek, and Alan J. Rogers. "High-spatial-resolution distributed optical fiber strain or temperature sensing." In Photonics East (ISAM, VVDC, IEMB), edited by John P. Dakin, Alan D. Kersey, and Dilip K. Paul. SPIE, 1999. http://dx.doi.org/10.1117/12.339105.

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Lecomte, Pierre, Sylvain Blairon, Didier Boldo, Frédéric Taillade, Matthieu Caussanel, Gwendal Beauvois, Hervé Duval, et al. "High temperature measurements in irradiated environment using Raman fiber-optics distributed temperature sensing." In SPIE Photonics Europe, edited by Francis Berghmans and Anna G. Mignani. SPIE, 2016. http://dx.doi.org/10.1117/12.2219174.

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Wang, Jing, Di Hu, Dorothy Y. Wang, and Anbo Wang. "Fully-distributed fiber-optic high temperature sensing based on stimulated Brillouin scattering." In SPIE Defense, Security, and Sensing, edited by Eric Udd, Gary Pickrell, Henry H. Du, Jerry J. Benterou, Xudong Fan, Alexis Mendez, Stephen J. Mihailov, Anbo Wang, and Hai Xiao. SPIE, 2013. http://dx.doi.org/10.1117/12.2015459.

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Iezzi, Victor Lambin, Sebastien Loranger, and Raman Kashyap. "Distributed temperature and strain sensing with high order stimulated Brillouin scattering." In 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC). IEEE, 2017. http://dx.doi.org/10.1109/cleoe-eqec.2017.8086884.

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Hill, W., M. Busker, B. Callsen, A. Dreß, M. Fromme, D. Gavrila, St Ketzer, et al. "P3.2 - Robust, High-Performance Raman-OFDR System for Distributed Temperature Sensing." In SENSOR+TEST Conferences 2011. AMA Service GmbH, Von-Münchhausen-Str. 49, 31515 Wunstorf, Germany, 2011. http://dx.doi.org/10.5162/sensor11/sp3.2.

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BERNINI, R., A. MINARDO, and L. ZENI. "HIGH-RESOLUTION TEMPERATURE/STRAIN DISTRIBUTED MEASUREMENTS BY FIBER-OPTIC BRILLOUIN SENSING." In Proceedings of the 10th Italian Conference. WORLD SCIENTIFIC, 2008. http://dx.doi.org/10.1142/9789812833532_0085.

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Reinsch, T., and J. Henninges. "Well Integrity Analysis in a High Temperature Geothermal Well using Distributed Temperature Sensing Behind Casing." In EAGE/DGG Workshop 2017. Netherlands: EAGE Publications BV, 2017. http://dx.doi.org/10.3997/2214-4609.201700167.

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Buric, M., P. Ohodnicki, A. Yan, S. Huang, and K. P. Chen. "Distributed fiber-optic sensing in a high-temperature solid-oxide fuel cell." In SPIE Optical Engineering + Applications, edited by Philip E. Ardanuy and Jeffery J. Puschell. SPIE, 2016. http://dx.doi.org/10.1117/12.2238534.

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Inaudi, Daniele, and Branko Glisic. "Long-Range Pipeline Monitoring by Distributed Fiber Optic Sensing." In 2006 International Pipeline Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/ipc2006-10287.

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Abstract:
Distributed fiber optic sensing presents unique features that have no match in conventional sensing techniques. The ability to measure temperatures and strain at thousands of points along a single fiber is particularly interesting for the monitoring of elongated structures such as pipelines, flow lines, oil wells and coiled tubing. Sensing systems based on Brillouin and Raman scattering are used for example to detect pipeline leakages, verify pipeline operational parameters, prevent failure of pipelines installed in landslide areas, optimize oil production from wells and detect hot-spots in high-power cables. Recent developments in distributed fiber sensing technology allow the monitoring of 60 km of pipeline from a single instrument and of up to 300 km with the use of optical amplifiers. New application opportunities have demonstrated that the design and production of sensing cables is a critical element for the success of any distributed sensing instrumentation project. Although some telecommunication cables can be effectively used for sensing ordinary temperatures, monitoring high and low temperatures or distributed strain present unique challenges that require specific cable designs. This contribution presents advances in long-range distributed sensing and in novel sensing cable designs for distributed temperature and strain sensing. The paper also reports a number of significant field application examples of this technology, including leakage detection on brine and gas pipelines, strain monitoring on gas pipelines and combined strain and temperature monitoring on composite flow lines and composite coiled-tubing pipes.
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Reports on the topic "Distributed high temperature sensing"

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May, Russell, Raymond Rumpf, John Coggin, Williams Davis, Taeyoung Yang, Alan O'Donnell, and Peter Bresnahan. Ultra-High Temperature Distributed Wireless Sensors. Office of Scientific and Technical Information (OSTI), March 2013. http://dx.doi.org/10.2172/1116992.

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Florian Solzbacher, Anil Virkar, Loren Rieth, Srinivasan Kannan, Xiaoxin Chen, and Hannwelm Steinebach. Novel High Temperature Materials for In-Situ Sensing Devices. Office of Scientific and Technical Information (OSTI), December 2009. http://dx.doi.org/10.2172/992584.

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Zhi Chen and Kozo Saito. Novel Carbon Nanotube-Based Nanostructures for High-Temperature Gas Sensing. Office of Scientific and Technical Information (OSTI), August 2008. http://dx.doi.org/10.2172/947007.

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Mawalkar, Sanjay, Andrew Burchwell, and Neeraj Gupta. Distributed Temperature Sensing (DTS) to Monitor CO2 Migration in an Enhanced Oil Recovery Field in Northern Michigan. Office of Scientific and Technical Information (OSTI), September 2020. http://dx.doi.org/10.2172/1773169.

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Boyd, D. M., G. E. Spanner, and P. D. Sperline. Direct measurement of solids: High temperature sensing Final report Experimental development and testing of high temperature pulsed EMATs (electromagnetic acoustic transducer):. Office of Scientific and Technical Information (OSTI), April 1988. http://dx.doi.org/10.2172/7145606.

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Quinn, Meghan. Geotechnical effects on fiber optic distributed acoustic sensing performance. Engineer Research and Development Center (U.S.), July 2021. http://dx.doi.org/10.21079/11681/41325.

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Distributed Acoustic Sensing (DAS) is a fiber optic sensing system that is used for vibration monitoring. At a minimum, DAS is composed of a fiber optic cable and an optic analyzer called an interrogator. The oil and gas industry has used DAS for over a decade to monitor infrastructure such as pipelines for leaks, and in recent years changes in DAS performance over time have been observed for DAS arrays that are buried in the ground. This dissertation investigates the effect that soil type, soil temperature, soil moisture, time in-situ, and vehicle loading have on DAS performance for fiber optic cables buried in soil. This was accomplished through a field testing program involving two newly installed DAS arrays. For the first installation, a new portion of DAS array was added to an existing DAS array installed a decade prior. The new portion of the DAS array was installed in four different soil types: native fill, sand, gravel, and an excavatable flowable fill. Soil moisture and temperature sensors were buried adjacent to the fiber optic cable to monitor seasonal environmental changes over time. Periodic impact testing was performed at set locations along the DAS array for over one year. A second, temporary DAS array was installed to test the effect of vehicle loading on DAS performance. Signal to Noise Ratio (SNR) of the DAS response was used for all the tests to evaluate the system performance. The results of the impact testing program indicated that the portions of the array in gravel performed more consistently over time. Changes in soil moisture or soil temperature did not appear to affect DAS performance. The results also indicated that time DAS performance does change somewhat over time. Performance variance increased in new portions of array in all material types through time. The SNR in portions of the DAS array in native silty sand material dropped slightly, while the SNR in portions of the array in sand fill and flowable fill material decreased significantly over time. This significant change in performance occurred while testing halted from March 2020 to August 2020 due to the Covid-19 pandemic. These significant changes in performance were observed in the new portion of test bed, while the performance of the prior installation remained consistent. It may be that, after some time in-situ, SNR in a DAS array will reach a steady state. Though it is unfortunate that testing was on pause while changes in DAS performance developed, the observed changes emphasize the potential of DAS to be used for infrastructure change-detection monitoring. In the temporary test bed, increasing vehicle loads were observed to increase DAS performance, although there was considerable variability in the measured SNR. The significant variation in DAS response is likely due to various industrial activities on-site and some disturbance to the array while on-boarding and off-boarding vehicles. The results of this experiment indicated that the presence of load on less than 10% of an array channel length may improve DAS performance. Overall, this dissertation provides guidance that can help inform the civil engineering community with respect to installation design recommendations related to DAS used for infrastructure monitoring.
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Wang, Xingwei, Chengyu Cao, and Xinsheng Lou. Distributed fiber sensing systems for 3D combustion temperature field monitoring in coal-fired boilers using optically generated acoustic waves. Office of Scientific and Technical Information (OSTI), September 2014. http://dx.doi.org/10.2172/1507128.

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Kwang Y. Lee, Stuart S. Yin, and Andre Boehman. Intelligent Monitoring System with High Temperature Distributed Fiberoptic Sensor for Power Plant Combustion Processes. Office of Scientific and Technical Information (OSTI), September 2006. http://dx.doi.org/10.2172/907882.

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Kwang Y. Lee, Stuart S. Yin, and Andre Boheman. Intelligent Monitoring System With High Temperature Distributed Fiberoptic Sensor For Power Plant Combustion Processes. Office of Scientific and Technical Information (OSTI), December 2005. http://dx.doi.org/10.2172/882505.

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Kwang Y. Lee, Stuart S. Yin, and Andre Boheman. INTELLIGENT MONITORING SYSTEM WITH HIGH TEMPERATURE DISTRIBUTED FIBEROPTIC SENSOR FOR POWER PLANT COMBUSTION PROCESSES. Office of Scientific and Technical Information (OSTI), December 2004. http://dx.doi.org/10.2172/839165.

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