Relevant bibliographies by topics / In-situ temperature

Academic literature on the topic 'In-situ temperature'

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Published: 10 December 2022
Last updated: 29 January 2023

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Journal articles on the topic "In-situ temperature"

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Tribaudino, Mario, and Mauro Prencipe. "A high temperature in situ single-crystal study of P4/n vesuvianite." European Journal of Mineralogy 11, no. 6 (November 29, 1999): 1037–42. http://dx.doi.org/10.1127/ejm/11/6/1037.

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Neuville, D. R., L. Hennet, P. Florian, and D. de Ligny. "In situ High-Temperature Experiments." Reviews in Mineralogy and Geochemistry 78, no. 1 (January 1, 2014): 779–800. http://dx.doi.org/10.2138/rmg.2013.78.19.

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Cametti, Georgia, and Thomas Armbruster. "Chiavennite revisited: a high-temperature in situ single-crystal X-ray diffraction study." European Journal of Mineralogy 27, no. 5 (September 7, 2015): 659–67. http://dx.doi.org/10.1127/ejm/2015/0027-2470.

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Wilding, Martin Charles, and Alexandra Navrotsky. "The Dissolution of Silica and Alumina in Silicate Melts: in situ High Temperature Calorimetric Studies." Neues Jahrbuch für Mineralogie - Abhandlungen 172, no. 2-3 (May 1, 1998): 177–201. http://dx.doi.org/10.1127/njma/172/1998/177.

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Yamanoi, Yuta, and Satoru Nakashima. "In situ High-Temperature Visible Microspectroscopy for Volcanic Materials." Applied Spectroscopy 59, no. 11 (November 2005): 1415–19. http://dx.doi.org/10.1366/000370205774783205.

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In situ high-temperature visible microspectroscopy has been developed in order to study color change kinetics of volcanic materials. Olivine thin sections put on a synthetic alumina plate are heated on a heating stage at 600–800 °C under a visible microspectroscope. Changes in visible absorption spectra are monitored every 60 s for 5 hours. The obtained high-temperature visible spectra showed a gradual increase with time in absorbance in the shorter wavelength region (400–600 nm). The 430 nm absorbance (ligand field transition of Fe3+) increased more with time at higher temperatures. Assuming diffusional transport in plane sheets, apparent diffusion coefficients were determined at temperatures of 600–800 °C. The activation energy for this diffusion in olivine is 208 ± 17 kJ/mol. This activation energy value is similar to those for the metal vacancy diffusion in olivine. This newly developed in situ high-temperature visible microspectroscopy can provide kinetic measurements of visible spectral change of materials at high temperatures such as volcanic materials.
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Huang, Zirui, Meiling Zhong, Haibo Yang, Enqin Xu, Dehui Ji, Paul Joseph, and Ri-Chao Zhang. "In-Situ Isothermal Crystallization of Poly(l-lactide)." Polymers 13, no. 19 (September 30, 2021): 3377. http://dx.doi.org/10.3390/polym13193377.

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The isothermal crystallization of poly(l-lactide) (PLLA) has been investigated by in-situ wide angle X-ray diffraction (WAXD) and polarized optical microscopes (POM) equipped with a hot-stage accessory. Results showed that the spherulites of PLLA were formed at high temperature, whereas irregular morphology was observed under a low temperature. This can be attributed to the varying rates of crystallization of PLLA at different temperatures. At low temperatures, the nucleation rate is fast and hence the chains diffuse very slow, resulting in the formation of imperfect crystals. On the other hand, at high temperatures, the nucleation rate is slow and the chains diffuse fast, leading to the formation of perfect crystals. The change in the value of the Avrami exponent with temperature further verifies the varying trend in the morphological feature of the crystals.
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Saka, Hiroyasu, Takeo Kamino, Shigeo Ara, and Katsuhiro Sasaki. "In Situ Heating Transmission Electron Microscopy." MRS Bulletin 33, no. 2 (February 2008): 93–100. http://dx.doi.org/10.1557/mrs2008.21.

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AbstractTemperature is one of the most important factors affecting the state and behavior of materials. In situ heating transmission electron microscopy (TEM) is a powerful tool for understanding such temperature effects, and recently in situ heating TEM has made significant progress in terms of temperature available and resolution attained. This article briefly describes newly developed specimen-heating holders, which are useful in carrying out in situ heating TEM experiments. It then focuses on three main applications of these specimen holders: solid–solid reactions, solid–liquid reactions (including highresolution observation of a solid–liquid interface, size dependence of the melting temperatures of one-, two- and three-dimensionally reduced systems, size dependence of the contact angle of fine metal liquid, and wetting of Si with liquid Au or Al) and solid–gas reactions. These results illustrate the benefit of in situ heating TEM for providing fundamental information on temperature effects on materials.
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Mailybaev, A. A. A., J. Bruining, and D. Marchesin. "Analytical Formulas for In-Situ Combustion." SPE Journal 16, no. 03 (February 23, 2011): 513–23. http://dx.doi.org/10.2118/129904-pa.

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Summary There is a renewed interest in using combustion to recover medium- or high-viscosity oil. Despite numerous experimental, numerical, and analytical studies, the mechanisms for incomplete fuel combustion or oxygen consumption are not fully understood. Incomplete oxygen consumption may lead to low-temperature oxidation reactions downstream. This paper shows that these features emerge in a relatively simple 1D model, where air is injected in a porous medium filled with inert gas, water, and an oil mixture consisting of precoke, medium oil, and light oil. Precoke is a component that is dissolved in the oil but has essentially the same composition as coke. At high temperatures, precoke is converted to coke, which participates in high-temperature oxidation. At high temperatures, medium-oil components are cracked, releasing gaseous oil. Light-oil components and water are vaporized. The model possesses an analytical solution, which was obtained by a concept introduced by Zeldovich et al. (1985). This concept, which underlies most analytical approaches such as the reaction-sheet approximation and large-activation-energy asymptotics, entails that reaction can occur only in a very small temperature range because of the highly nonlinear nature of the Arrhenius factor. For a temperature below this range, the reaction rate is too slow, and for temperatures above this range, the reaction rate is so fast that either the fuel or oxygen concentrations become zero. The model results, in the absence of external heat losses, show that there are two combustion regimes in which coke or oxygen is partially consumed. In one regime, the reaction zone moves in front of the heat wave; whereas, in the other regime, the order of the waves is reversed. There are also two combustion regimes in which the coke and oxygen are completely consumed. Also, here the reaction zone can move in front of or at the back of the heat wave. Each combustion regime is described by a sequence of waves; we derive formulas for parameters in these waves. We analyze our formulas for typical in-situ-combustion data and compare the results with numerical simulation. The main conclusion is that mainly two key parameters (i.e., the injected oxygen mole fraction and the fuel concentration) determine the combustion-front structure and when either incomplete oxygen consumption or incomplete fuel consumption occurs in the high-temperature oxidation zone.
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Vykhodets, V. B., and T. E. Kurennykh. "In-situ nuclear reaction analysis." Diagnostics, Resource and Mechanics of materials and structures, no. 4 (June 2021): 6–14. http://dx.doi.org/10.17804/2410-9908.2021.4.006-014.

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The principles of in-situ nuclear reaction techniques and the need for them in various fields of scientific research are considered; several examples of the application of these techniques are given. It is shown that the techniques of in-situ nuclear reactions are effective in studying the diffusion of deuterium in metals at temperatures below room temperature, the diffusion of deuterium in proton-conducting oxides, the quantum diffusion of deuterium in metals at cryogenic temperatures, and the chemical composition of oxide nanopowders when they are heated in vacuum. Promising applications of nuclear reaction techniques in situ are formulated.
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Rangarajan, S., P. B. Aswath, and W. O. Soboyejo. "Fatigue of in situ Reinforced Ti–8.5Al–1B–1Si." Journal of Materials Research 12, no. 4 (April 1997): 1102–11. http://dx.doi.org/10.1557/jmr.1997.0153.

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The effect of temperature on the fatigue and fracture properties of an in situ reinforced super α alloy Ti–8.5Al–1B–1Si (wt. %) was investigated. At room temperature the as-extruded composite has a strength of 631 MPa with limited ductility. On increasing the temperature to 700 °C only a marginal drop in strength to 610 Mpa was observed along with a significant improvement in ductility to 5.9%. Low-cycle fatigue results indicate a marginal decrease in fatigue life as temperature is increased from room temperature to 700 °C. Fatigue crack growth studies in the as-extruded microstructure indicate a strong influence of R-ratio on both the threshold for fatigue crack growth and crack growth rates in the Paris regimes. At elevated temperatures, the resistance to fatigue crack growth increases with temperature below approximately 500 °C. At 600 °C, however, there is an increase in the near threshold crack growth rate due to embrittlement effects. At higher δK values , the resistance to fatigue crack growth at elevated temperatures is always better than that at room temperature. This improvement is attributed to the increase in the inherent resistance
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Dissertations / Theses on the topic "In-situ temperature"

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borgonovo, cecilia. "Aluminum Nano-composites for Elevated Temperature Applications." Digital WPI, 2010. https://digitalcommons.wpi.edu/etd-theses/962.

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"Conventional manufacturing methods are sub-optimal for nano-composites fabrication. Inhomogeneous dispersion of the secondary phase and scalability issues are the main issues. This work focuses on an innovative method where the reinforcement is formed in-situ in the melt. It involves the reaction of the molten aluminum with a nitrogen- bearing gas injected through the melt at around 1273 K. AlN particles are expected to form through this in situ reaction. A model has been developed to predict the amount of reinforced phase. Experiments have been carried out to confirm the feasibility of the process and the mechanism of AlN formation discussed. The detrimental effect of oxygen in the melt which hinders the nitridation reaction has been proved. The effect of process times and the addition of alloying elements (Mg and Si) have also been investigated."
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Lee, Kok Loong. "Deformation behaviour of Cu-Cr in-situ composite." Thesis, University of Leicester, 2004. http://hdl.handle.net/2381/11077.

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With the increasing requirements for higher strength materials with high electrical conductivity, a lot of interest has been paid to develop Cu-based composites in the last 25 years. These composites have superior tensile strength, combined with good electrical conductivity, to that exhibited by pure Cu and conventional Cu alloys. To date, much of the research carried out on this composite has focused on the mechanical and electrical properties of the as processed material. However, there is a basic lack of understanding of the way in which the properties may change or degrade during service. Without this knowledge, these composites cannot be fully and safely exploited. Thus the objective of this study was to investigate the thermo-mechanical behaviour of a Cu-Cr composite, and the nature and extent of any damage mechanisms occurring within the composite over a wide range of experimental conditions. Neutron diffraction was used to investigate the deformation behaviour of the individual phases in the composite and their interaction through elastic and plastic loading at room temperature. For the composite, a fairly good agreement was observed in the phase strains predicted by the Eshelby theory and measured by neutron diffraction. In-situ tensile tests in the SEM were also performed to study the damage mechanism of the composite. Tensile and creep tests were carried out in air and in vacuum over a wide range of temperatures. To provide data for comparison with the composite material, pure Cu specimens were tested whenever possible. Creep resistance increases significantly with the introduction of Cr fibres into Cu. The higher creep rate of the composite in air than in vacuum is due to the gradual decrease of the cross-sectional area of the matrix due to increasing thickness of the oxide layer. Damage characteristics and distributions were found to be similar during tensile and creep testing.
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Arnold, Klaus, Astrid Ziemann, and Armin Raabe. "Acoustic tomography in comparision to in-situ temperature and wind measurements." Universitätsbibliothek Leipzig, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-216523.

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Acoustic travel time tomography is presented as an experimental technique for remote monitoring of areally averaged meteorological quantities as the air temperature and the horizontal wind speed. This ground based remote sensing technique uses the nearly horizontal propagation of sound waves in the atmospheric surface layer. Here the acoustic travel time tomography was applied by measuring the travel time at defined propagation paths between several sound sources and receivers. The resulting sound speed were used to obtain estimates of the meteorological parameters. A measuring campaign was carried out at the test site in Lindenberg (DWD) to compare the acoustically derived data with conventional systems. These observations demonstrated that on one side the accuracy of the acoustic system is comparable with in-situ measurements and on the other side the temperature was particularly significant overestimated by the standard sensors, e.g. due to the radiation influence
Die Akustische Laufzeittomographie wird als ein experimentelles Verfahren zur Sondierung meteorologischer Parameter, wie z.B. der Lufttemperatur und der horizontalen Windgeschwindigkeit, vorgestellt. Dieses bodengebundene Fernerkundungsverfahren nutzt die horizontale Ausbreitung von Schallwellen in der atmosphärischen Grenzschicht. Hier wird das Verfahren der Laufzeittomographie angewendet, d.h. bei bekannter Weglänge wird die Ausbreitungszeit von ausgesendeten Schallsignalen zwischen mehreren Schallquellen und Empfängern gemessen. Die resultierenden Schallgeschwindigkeitsinformationen werden genutzt, um daraus die entsprechenden meteorologischen Parameter abzuleiten. Auf dem Gelände des Meteorologischen Observatoriums Lindenberg (DWD) wurde eine Messkampagne durchgeführt, um die akustischen Sondierungen mit konventionellen Systemen zu vergleichen. Die Auswertungen zeigen, dass einerseits die Genauigkeit der Akustischen Tomographie vergleichbar mit den konventionellen in-situ Messungen ist und andererseits, dass die Lufttemperatur aufgrund des Strahlungseinflusses bei Messungen mit den üblichen Sensoren zum Teil erheblich überschätzt wird
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Arnold, Klaus, Astrid Ziemann, and Armin Raabe. "Acoustic tomography in comparision to in-situ temperature and wind measurements." Wissenschaftliche Mitteilungen des Leipziger Instituts für Meteorologie ; 22 = Meteorologische Arbeiten aus Leipzig ; 6 (2001), S. 60-68, 2001. https://ul.qucosa.de/id/qucosa%3A15201.

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Acoustic travel time tomography is presented as an experimental technique for remote monitoring of areally averaged meteorological quantities as the air temperature and the horizontal wind speed. This ground based remote sensing technique uses the nearly horizontal propagation of sound waves in the atmospheric surface layer. Here the acoustic travel time tomography was applied by measuring the travel time at defined propagation paths between several sound sources and receivers. The resulting sound speed were used to obtain estimates of the meteorological parameters. A measuring campaign was carried out at the test site in Lindenberg (DWD) to compare the acoustically derived data with conventional systems. These observations demonstrated that on one side the accuracy of the acoustic system is comparable with in-situ measurements and on the other side the temperature was particularly significant overestimated by the standard sensors, e.g. due to the radiation influence.
Die Akustische Laufzeittomographie wird als ein experimentelles Verfahren zur Sondierung meteorologischer Parameter, wie z.B. der Lufttemperatur und der horizontalen Windgeschwindigkeit, vorgestellt. Dieses bodengebundene Fernerkundungsverfahren nutzt die horizontale Ausbreitung von Schallwellen in der atmosphärischen Grenzschicht. Hier wird das Verfahren der Laufzeittomographie angewendet, d.h. bei bekannter Weglänge wird die Ausbreitungszeit von ausgesendeten Schallsignalen zwischen mehreren Schallquellen und Empfängern gemessen. Die resultierenden Schallgeschwindigkeitsinformationen werden genutzt, um daraus die entsprechenden meteorologischen Parameter abzuleiten. Auf dem Gelände des Meteorologischen Observatoriums Lindenberg (DWD) wurde eine Messkampagne durchgeführt, um die akustischen Sondierungen mit konventionellen Systemen zu vergleichen. Die Auswertungen zeigen, dass einerseits die Genauigkeit der Akustischen Tomographie vergleichbar mit den konventionellen in-situ Messungen ist und andererseits, dass die Lufttemperatur aufgrund des Strahlungseinflusses bei Messungen mit den üblichen Sensoren zum Teil erheblich überschätzt wird.
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Elwood, Teri, Whit Bennett, Teh Lai, and Kelly Simmons-Potter. "In-situ comparison of thermal measurement technologies for interpretation of PV module temperature de-rating effects." SPIE-INT SOC OPTICAL ENGINEERING, 2016. http://hdl.handle.net/10150/622582.

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It is well known that the efficiency of a photovoltaic (PV) module is strongly impacted by its temperature such that higher temperatures lead to lower energy conversion efficiencies. An accurate measurement of the temperature de-rating effect, therefore, is vital to the correct interpretation of PV module performance under varied environmental conditions. The current work investigates and compares methods for performing measurements of module temperature both in the lab and in field-test environments. A comparison of several temperature measurement devices was made in order to establish the ideal sensor configuration for quantifying module operating temperature. Sensors were also placed in various locations along a string of up to eight photovoltaic modules to examine the variance in operating temperature with position in the string and within a larger array of strings.
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Wang, Peng. "Corrosion behaviour of zirconium alloys in high temperature aqueous environment by electrochemical impedance spectroscopy." Thesis, University of Manchester, 2011. https://www.research.manchester.ac.uk/portal/en/theses/corrosion-behaviour-of-zirconium-alloys-in-high-temperature-aqueous-environment-by-electrochemical-impedance-spectroscopy(e1bf6a9f-c8ca-45db-8e05-14ee723886d9).html.

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The corrosion behaviour of zirconium based alloys has been primarily investigated by electrochemical impedance spectroscopy (EIS). In-situ autoclave EIS experiments were performed in simulated primary coolant conditions in order to study the high temperature water corrosion of zirconium alloys in PWRs. In-situ impedance response of the corroding material was recorded throughout first kinetic transition. A physical model of the zirconium oxide was proposed in accordance with the microstructural observation' made by SEM analysis. Electrical properties of the oxide was evaluated with equivalent circuit model (ECM) which was constructed according to the physical oxide model. Evolution of various oxide parameters obtained from ECM was analysed in accordance with the microstructure observation made by SEM. A two layer structure consists of a outer porous oxide and an inner barrier oxide, was found to be the most accurate description for the autoclave formed oxide. Supporting evidence from the SEM cross-section and surface analysis of the oxide had shown cracks and pores that were linked and connected with the environment. This observation is also confirmed by the in-situ EIS measurement which has shown porous electrode behaviour throughout the course of oxidation. The porous oxide behaviour was also confirmed by the ex-situ soaking experiment on samples with incremental exposure time. Evolution of inner barrier layer oxide thickness was found to be correlated with kinetic transition which was determined from weight gain measurement. This indicated that barrier layer maybe the oxidation rate controlling layer and its thickness maybe reduced during transition. Thus, a thinner barrier layer would resulted in a rapid corrosion of zirconium alloys. Furthermore, maintaining the barrier layer thickness maybe the possible route to improve zirconium alloy corrosion resistance.
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Rodriguez, Jose Ramon. "Experimental and analytical study to model temperature profiles and stoichiometry in oxygen-enriched in-situ combustion." Texas A&M University, 2003. http://hdl.handle.net/1969.1/134.

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A new combustion zone analytical model has been developed in which the combustion front temperature may be calculated. The model describes in the combustion zone, the amount of fuel burned based on reaction kinetics, the fuel concentration and produced gas composition based on combustion stoichiometry, and the amount of heat generated based on a heat balance. Six runs were performed in a 3-inch diameter, 40-inch long steel combustion tube with Jobo crude oil (9-11°API) from the Orinoco Belt in Venezuela. These runs were carried out with air containing three values of oxygen concentration, 21%, 30%, and 40%. The weight percentage of sand, clay, water, and oil in the sand mix was kept constant in all runs at 86.6%, 4.7%, 4.0%, and 4.7% respectively. Injection air rates (3 L/min) as well as the production pressure (300 psig) were kept constant in all runs. The results indicate that the calculated combustion zone temperatures and temperature profiles are in good agreement with the experimental data, for the range of oxygen concentration in the injected air. The use of oxygen-enriched air slightly increased the combustion front temperature from 440°C in a 21 mole % O2 concentration to a maximum of 475°C for air with 40 mole % O2 concentration. Oxygen-enriched air injection also increased the combustion front velocity from 13.4 cm/hr (for 21% oxygen) to 24.7 cm/hr (for 40% oxygen), thus reducing the start of oil production from 3.3 hours (for 21% oxygen) to 1.8 hours (for 40% oxygen). In the field, the use of oxygen-enriched air injection could translate into earlier oil production compared to with not-enriched air injection. The new analytical model for the combustion zone developed in this study will be beneficial to future researchers in understanding the effect of oxygen-enriched in-situ combustion and its implications on the combustion front temperature and combustion front thickness.
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Jahnke, Sebastian Ingo. "Pipeline leak detection using in-situ soil temperature and strain measurements." Diss., University of Pretoria, 2018. http://hdl.handle.net/2263/66579.

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This project investigated whether by measuring temperature and strain changes in the ground around a pipeline a leak can be detected using fibre optic instrumentation. The concept entails installation of an optic fibre along the length of the pipeline in the pipe trench when a new pipe is installed. Alternatively, the possibility also exists to retrofit such a leakage detection system by burying it near (above) existing pipes, although this has not been investigated in this project. The success of such a leakage detection system is based on the hypothesis that the temperature differential between the water in a pipeline and the ground around the pipe will result in a detectable temperature change in the ground when a leak occurs. Softening of the pipe support due to leaking water should result in strain changes in the soil immediately around the pipe and in the pipe itself, both of which should be detectable. All three of these quantities, i.e. ground temperature, ground strain and pipe strain can be measured using fibre optic technology. This study is based on detecting temperature and strain changes using fibre Bragg grating sensors (FBGS) at discrete locations along the length of a pipe. The success of a system based on temperature measurement implies that temperature changes caused by a leak should be distinguishable from naturally occurring temperature cycles. Installations were therefore conducted to measure ground temperature changes to a depth of 3m over the course of a year and comparing those to temperature changes measured in active water mains over the same period in Pretoria. A temperature differential that always exceeded 2°C was recorded, indicating that the system has potential to provide a means of leak detection. A laboratory study was carried out to observe temperature changes associated with an advancing wetting plume caused by a simulated leak using thermistors buried in fine sand. Depending on the magnitude of the soil-water temperature differential, a rapid drop in temperature was observed at monitoring locations during the progression of the wetting plume (the water temperature is typically lower than the soil temperature). However, an initial shortduration increase (spike) in temperature was consistently observed at measurement locations upon first passage of the wetting front. It is hypothesised that this spike is caused by the release of free surface energy upon wetting of the soil. As expected, immediately following this spike after the passage of the wetting front, a significant and rapid change in temperature was noted during the tests. The temperature reduction is dependent on the temperature differential between the water and the surrounding soil and illustrated the potential of the proposed method of leak detection (i.e. detecting leaks by observing a reduction in ground temperature). After the laboratory phase, a field study was conducted during which a 110 mm diameter 12 m long uPVC pipe was installed with sensor arrays consisting of both temperature and total strain FBGS. Thermistors were used as temperature sensors as in the case of the laboratory investigation. Strain sensors used were discrete optical strain gauges or fibre Bragg grating sensors (FBGS). Fifty percent of the FBGS were epoxied to the pipe to measure pipe strains, while the remaining 50% were free-floating, situated in a thin oil-filled plastic tube buried in the corner of the pipe trench. The purpose of the epoxied FBGS was to measure pipe strain changes, while the purpose of the free-floating FGBS was to detect temperature-induce strain changes. During a leak, strain changes were recorded in the free-floating FBGS several times exceeding the values expected based on the temperature changes measured by the thermistors. In addition, very significant pipe strain changes were observed. These observations indicate that significant ground and pipe strains occur due to wetting and subsequent softening of the soil caused by the leak. The change in total strain and temperature observed during a leakage event provided strong evidence that both parameters can be used to effectively indicate the presence of a leakage event. A complication identified in the study is that network pressure fluctuations result in significant pipe strains which would complicate leak identification. It is therefore recommended that the leakage detection system should comprise of an optic fibre separated from, but in close proximity to the pipe. This study should be followed up to investigate the performance of a leakage detection system based on distributed strain measurement and the potential of retrofitting the proposed detection system to existing pipelines.
Dissertation (MEng)--University of Pretoria, 2018.
Civil Engineering
MEng
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Brandt, Josef. "Temperature Dependent Size Exclusion Chromatography for Investigating Thermoreversibly Bonding Polymer Systems." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-207589.

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Polymers capable of thermally controlled reversible bonding reactions are promising candidates for stimuli responsive materials, as required for self-healing or drug delivery materials. In order to investigate how the dynamic reactions can be controlled, effective analytical tools are demanded that are capable of analyzing not only the polymers but can also monitor the respective bonding reactions. Herein, we employ size exclusion chromatography in a newly developed temperature dependent mode (TD SEC) for the in situ characterization of polymers that undergo retro Diels-Alder (rDA) reaction at temperatures higher than 60 °C. Monitoring the evolution of the molar mass distribution of the polymers during the rDA reaction and evaluating the data quantitatively gives detailed information about the extent of the reaction and allows elucidating structural parameters that can be used for controlling the polymers debonding behavior. In contrast to spectroscopic techniques, TD SEC analyzes only the size of the polymers, hence the polymers do not need to fulfill any particular requirements (e.g. presence of detectable functional groups) but only need to be soluble in the TD SEC, which makes the method universally applicable. Side effects that might bias the results are minimized by using a high temperature chromatograph that allows performing the analysis in a broad temperature range (60 – 200 °C) and in different solvents. Thus, the analysis can be performed under the exact conditions that are required for the bonding reactions and an in situ image is provided.
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Mills, Robert Jeffrey. "Abrasive Blasting with Post-Process and In-Situ Characterization." Thesis, Virginia Tech, 2014. http://hdl.handle.net/10919/49680.

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Abrasive blasting is a common process for cleaning or roughening the surface of a material prior to the application of a coating. Although the process has been in practice for over 100 years, the lack of a comprehensive understanding of the complex interactions that exist with the process can still yield an inferior surface quality. Subsequently, parts can be rejected at one of many stages of the manufacturing process and/or fail unexpectedly upon deployment. The objective of this work is to evaluate the effect of selected input parameters on the characteristics of the blasted surface characteristics so that a more useful control strategy can be implemented. To characterize surface roughness, mechanical profilometry was used to collect average roughness parameter, Ra. Decreasing blast distance from 6” to 4” gave ΔRa = +0.22 µm and from 8” to 6” gave ΔRa = +0.22 µm. Increasing blast pressure from 42 psi to 60 psi decreased the Ra by 0.33 µm. Media pulsation reduced Ra by 0.56 µm and the use of new media reduced Ra by 0.47 µm. Although blasting under the same conditions and operator on different days led to ΔRa due to shorter blast times, there was no statistically significant variance in Ra attributed to blasting on different days. Conversely, a ΔRa = +0.46 µm was observed upon blasting samples with different cabinets. No significant ΔRa was found when switching between straight and Venturi nozzles or when using different operators. Furthermore, the feasibility of fiber optic sensing technologies was investigated as potential tools to provide real time feedback to the blast machine operator in terms of substrate temperature. Decreasing the blast distance from 6” to 4” led to ΔT = +9.2 °C, while decreasing the blast angle to 45° gave ΔT= -11.6 °C for 304 stainless steel substrates. Furthermore, increasing the blast pressure from 40 psi to 50 psi gave ΔT= +15.3 °C and changing from 50 psi to 60 psi gave ΔT= +9.9 °C. The blast distance change from 8” to 6” resulted in ΔT = +9.8 °C in thin stainless steel substrate temperature. The effects of substrate thickness or shape were evaluated, giving ΔT= +7.4 °C at 8” distance, ΔT= +20.2 °C at 60 psi pressure, and ΔT= -15.2 °C at 45° blasting when comparing thin stainless steel against 304 stainless steel (thick) temperatures. No significant ΔT in means was found when going from 6” to 8” distance on 304 stainless steel, 40 psi and 60 psi blasting of thin SS, as well as angled and perpendicular blasting of thin SS. Comparing thick 304 and thin stainless steel substrates at a 6” blast distance gave no significant ΔT.
Master of Science
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Books on the topic "In-situ temperature"

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Jemsek, J. In-situ measurement of thermal conductivity using the continuous-heating line source method and WHOI outrigged probe. Woods Hole, Mass: Woods Hole Oceanographic Institution, 1985.

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Jemsek, J. In-situ measurement of thermal conductivity using the continuous-heating line source method and WHOI outrigged probe. Woods Hole, Mass: Woods Hole Oceanographic Institution, 1985.

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NOAA/NESDIS, Workshop on Development of a. Global Satellite/In Situ Environmental Database (1992 Camp Springs Md ). Summary of the NOAA/NESDIS Workshop on Development of a Global Satellite/In Situ Environmental Database. Washington, D.C: U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, National Environmental Satellite, Data, and Information Service, 1993.

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Espinosa, John M. Assessment of instrumentation and analytical techniques for high temperature in situ waste stream characterization of industrial flue gases. Idaho Falls, Idaho: EG & G Idaho, Inc., 1986.

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L, Chung Deborah D., ed. X-ray diffraction at elevated temperatures: A method for in situ process analysis. New York: VCH, 1993.

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Rennhofer, Harald. In-situ-creep of carbon fibres: In-situ investigations of the structural change ofcarbon fibres during high temperature creep. Südwestdeutscher Verlag für Hochschulschriften AG & Company KG, 2009.

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Cole, Jason David. Pentacholorophenol reductive dechlorination and the significance of temperature: Development of an interceptor trench technology. 1993.

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X-ray attenuation measurements for high-temperature materials characterization and in-situ monitoring of damage accumulation. Cleveland, Ohio: National Aeronautics and Space Administration, Lewis Research Center, 1992.

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Center, Lewis Research, ed. X-ray attenuation measurements for high-temperature materials characterization and in-situ monitoring of damage accumulation. Cleveland, Ohio: National Aeronautics and Space Administration, Lewis Research Center, 1992.

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Center, Lewis Research, ed. X-ray attenuation measurements for high-temperature materials characterization and in-situ monitoring of damage accumulation. Cleveland, Ohio: National Aeronautics and Space Administration, Lewis Research Center, 1992.

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Book chapters on the topic "In-situ temperature"

1

Ranganathan, Rajesh, Olga Vayena, Teiichi Ando, Charalabos C. Doumanidis, and Craig A. Blue. "In-Situ Processing of Nickel Aluminide Coatings on Steel Substrates." In Elevated Temperature Coatings, 171–80. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118787694.ch13.

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Nautiyal, Pranjal, Benjamin Boesl, and Arvind Agarwal. "In-Situ Mechanical Characterization as a Function of Temperature." In In-situ Mechanics of Materials, 113–40. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-43320-8_4.

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Tokumoto, Hiroshi. "High Temperature Dynamic Behavior of Silicon Surfaces Studied by STM." In In-Situ Microscopy in Materials Research, 263–82. Boston, MA: Springer US, 1997. http://dx.doi.org/10.1007/978-1-4615-6215-3_11.

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Bewlay, B. P., M. R. Jackson, and M. F. X. Gigliotti. "Niobium Silicide High Temperature In Situ Composites." In Intermetallic Compounds - Principles and Practice, 541–60. Chichester, UK: John Wiley & Sons, Ltd, 2002. http://dx.doi.org/10.1002/0470845856.ch26.

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Hitchman, Michael L., Sarkis H. Shamlian, Guglielmo G. Condorelli, and Francoise Chabert-Rocabois. "In Situ Monitoring of CVD for HTS Growth." In High-Temperature Superconductors and Novel Inorganic Materials, 45–50. Dordrecht: Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-011-4732-3_7.

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Hou, P. Y., A. P. Paulikas, and B. W. Veal. "Strains in Thermally Growing Alumina Films Measured In-Situ Using Synchrotron X-Rays." In High-Temperature Oxidation and Corrosion 2005, 433–40. Stafa: Trans Tech Publications Ltd., 2006. http://dx.doi.org/10.4028/0-87849-409-x.433.

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Balasubramaniam, Krishnan, V. Vimal, Gary Boudreaux, R. Daniel Costley, Clinton Menezes, and Jagdish P. Singh. "Temperature and Viscosity in-Situ Sensor for Hostile Processes." In Review of Progress in Quantitative Nondestructive Evaluation, 1163–70. Boston, MA: Springer US, 1999. http://dx.doi.org/10.1007/978-1-4615-4791-4_149.

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Xu, Y. B., Z. W. Shan, and L. Liu. "In-Situ TEM Observation of Crack Propagation in a Single Crystal Ni3Al." In Fatigue and Fracture Behavior of High Temperature Materials, 96–97. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118787823.ch13.

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Castillo, Julie C., Bar-Cohen Yoseph, Steve Vance, Mathieu Choukroun, Hyeong Jae Lee, Xiaoqi Bao, Mircea Badescu, Stewart Sherrit, Melissa G. Trainer, and Stephanie A. Getty. "Chapter 9 Sample Handling and Instruments for the In Situ Exploration of Ice-Rich Planets." In Low Temperature Materials and Mechanisms, 229–70. 6000 Broken Sound Parkway NW, Suite 300 Boca Raton, FL 33487-2742: CRC Press, 2016. http://dx.doi.org/10.1201/9781315371962-10.

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Stokes, Casey D., and Robson F. Storey. "Investigation of High Temperature Isobutylene Polymerizations Utilizing Real-Time ATR-FTIR Spectroscopy." In In Situ Spectroscopy of Monomer and Polymer Synthesis, 59–66. Boston, MA: Springer US, 2003. http://dx.doi.org/10.1007/978-1-4615-0125-1_4.

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Conference papers on the topic "In-situ temperature"

1

Adams, Bruce. "In-Situ Optical Wafer Temperature Measurement." In TEMPERATURE: Its Measurement and Control in Science and Industry; Volume VII; Eighth Temperature Symposium. AIP, 2003. http://dx.doi.org/10.1063/1.1627273.

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Koerner, G. R., and R. M. Koerner. "In-Situ Temperature Monitoring of Geomembranes." In Geo-Frontiers Congress 2005. Reston, VA: American Society of Civil Engineers, 2008. http://dx.doi.org/10.1061/40782(161)48.

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Miller, Benjamin. "Local In Situ Temperature Mapping Using EELS." In European Microscopy Congress 2020. Royal Microscopical Society, 2021. http://dx.doi.org/10.22443/rms.emc2020.332.

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Moiseeva, Evgeniya, and Cindy Harnett. "High-Temperature Microreactors for In-Situ Nanomaterial Deposition." In 2008 17th Biennial University/Government/Industry Micro/Nano Symposium. IEEE, 2008. http://dx.doi.org/10.1109/ugim.2008.69.

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Aggour, Mohamed A., El-Sayed A. Osman, and Sidqi A. Abu-Khamsin. "In-Situ Sand Consolidation by Low-Temperature Oxidation." In SPE Annual Technical Conference and Exhibition. Society of Petroleum Engineers, 1996. http://dx.doi.org/10.2118/36626-ms.

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Mailybaev, A. A., D. Marchesin, and J. Bruining. "Low-temperature In-situ Combustion of Light Oil." In 12th European Conference on the Mathematics of Oil Recovery. Netherlands: EAGE Publications BV, 2010. http://dx.doi.org/10.3997/2214-4609.20144938.

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XIE, Ying-Fang, Jing-Lin YOU, and Li-Ming LU. "In-Situ Temperature Dependent Raman Spectra of Coal." In 3rd International Conference on Material Engineering and Application (ICMEA 2016). Paris, France: Atlantis Press, 2016. http://dx.doi.org/10.2991/icmea-16.2016.50.

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Rachakonda, P. "In-Situ Temperature Calibration Capability for Dimensional Metrology." In NCSL International Workshop & Symposium. NCSL International, 2014. http://dx.doi.org/10.51843/wsproceedings.2014.20.

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Abstract:
The Dimensional Metrology Group (DMG) at the National Institute of Standards and Technology (NIST) has the capability to perform large range dimensional measurements in a facility called the Tape Tunnel. The Tape Tunnel is equipped with a 60 m long steel bench and a reference interferometer. Various artifacts and instruments, such as tape measures, optical cables, laser trackers, laser distance meters etc. are calibrated against the reference interferometer. The relative uncertainty (Uk=2) in the displacement measurement is 2.4×10-7. A major component of this uncertainty is the uncertainty in measuring the temperature in the Tape Tunnel. There are 14 temperature probes installed along the length of the steel bench; two each at seven equidistant locations. One probe measures the air temperature and the other measures the material temperature (of the steel bench). Historically, calibrating these probes involved removing all the 14 probes and sending them to the NIST Thermodynamic Metrology Group. This process introduced a considerable amount of downtime to the DMG’s measurement capabilities. This also introduced uncertainties due to a) variation in the contact geometry of the material probe with the steel bench during reinstallation, and b) variation in the resistances of the probes’ cables due to pinching and/or elongation. In an attempt to address these issues, a new in-situ temperature calibration system was developed. This paper discusses the system components, an in-situ calibration procedure, the uncertainty sources involved in the calibration process, presents an uncertainty budget, and examines it with a Monte Carlo simulation. This system enables the DMG to perform quicker in-situ temperature calibration, at frequent intervals, with minimal downtime and provides better uncertainties in the dimensional measurements.
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Mashkov, Petko, Berkant Gyoch, Stanislav Penchev, and Hristo Beloev. "Method for in-situ power LEDs' junction temperature measurements." In 2012 35th International Spring Seminar on Electronics Technology (ISSE). IEEE, 2012. http://dx.doi.org/10.1109/isse.2012.6273116.

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Gong, Weidong, Matt Mowlem, Michael Kraft, and Hywel Morgan. "Oceanographic Sensor for in-situ temperature and conductivity monitoring." In OCEANS 2008 - MTS/IEEE Kobe Techno-Ocean. IEEE, 2008. http://dx.doi.org/10.1109/oceanskobe.2008.4530906.

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Reports on the topic "In-situ temperature"

1

Bewlay, Bernard P., Melvin R. Jackson, and Clyde L. Briant. Creep Mechanisms in High-Temperature In-Situ Composites. Fort Belvoir, VA: Defense Technical Information Center, August 1999. http://dx.doi.org/10.21236/ada369335.

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Sarin, Pankaj, and Waltraud M. Kriven. In-situ High Temperature Phase Transformations in Ceramics. Fort Belvoir, VA: Defense Technical Information Center, July 2009. http://dx.doi.org/10.21236/ada564428.

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Skliar, Mikhail. In-Situ Acoustic Measurements of Temperature Profile in Extreme Environments. Office of Scientific and Technical Information (OSTI), March 2015. http://dx.doi.org/10.2172/1209910.

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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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Halls, Benjamin, Susan Henkelis, Daniel Lowry, and David Rademacher. Extending in situ X-ray Temperature Diagnostics to Internal Components. Office of Scientific and Technical Information (OSTI), September 2022. http://dx.doi.org/10.2172/1887489.

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Kolopus, James A., and Lynn A. Boatner. Single-Crystal Tungsten Carbide in High-Temperature In-Situ Additive Manufacturing Characterization. Office of Scientific and Technical Information (OSTI), May 2017. http://dx.doi.org/10.2172/1361361.

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Sayir, Ali. Directionally Solidified Eutectic Ceramics; In-Situ Composites for High Temperature Structural Applications. Fort Belvoir, VA: Defense Technical Information Center, February 2004. http://dx.doi.org/10.21236/ada421689.

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Binnall, E., and M. McEvoy. ASSESSMENT OF THERMOCOUPLE TEMPERATURE MEASUREMENTS DURING IN SITU HEATER EXPERIMENTS AT STRIPA, SWEDEN. Office of Scientific and Technical Information (OSTI), October 1985. http://dx.doi.org/10.2172/1149512.

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Heffner, R. H., L. P. Le, G. J. Nieuwenhuys, D. E. MacLaughlin, A. Amato, and C. Baines. In-situ temperature calibration below 1 K using the {mu}{sup +} Knight shift in CMN. Office of Scientific and Technical Information (OSTI), June 1996. http://dx.doi.org/10.2172/244664.

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Tachikawa, Hiroyasu. In situ Raman spectroscopy of lithium electrode surface in ambient temperature lithium secondary battery. Final report. Office of Scientific and Technical Information (OSTI), September 1992. http://dx.doi.org/10.2172/10160397.

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