Добірка наукової літератури з теми "Temperature induced dispersion"

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Статті в журналах з теми "Temperature induced dispersion"

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TAKEUCHI, Y., T. IDA, and K. KIMURA. "TEMPERATURE EFFECT ON GOLD NANODISPERSION IN ORGANIC LIQUIDS." Surface Review and Letters 03, no. 01 (1996): 1205–8. http://dx.doi.org/10.1142/s0218625x96002175.

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The temperature effect on gold nanodispersion in organic liquids was examined by optical absorption spectroscopy and transmission electron microscopy. It was found that the color of the dispersion changed from purple just after preparation under a low-temperature condition to reddish purple or pink with the elevation of temperature up to room temperature. The optical properties of this system strongly coupled with the state of dispersions such as isolation, coagulation, and coalescence to sediment. Heating the dispersion above room temperature induced the instability of the colloidal system wh
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Kawasaki, Hideya, Masahiko Miyahara, Mats Almgren, Göran Karlsson, and Hiroshi Maeda. "Temperature-induced sedimentation to dispersion of ionic vesicles." Journal of Colloid and Interface Science 284, no. 1 (2005): 349–53. http://dx.doi.org/10.1016/j.jcis.2004.09.078.

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Ivanov, Oleg V., Paulo Caldas, and Gaspar Rego. "High Sensitivity Cryogenic Temperature Sensors Based on Arc-Induced Long-Period Fiber Gratings." Sensors 22, no. 19 (2022): 7119. http://dx.doi.org/10.3390/s22197119.

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In this paper, we investigated the evolution of the dispersion curves of long-period fiber gratings (LPFGs) from room temperature down to 0 K. We considered gratings arc-induced in the SMF28 fiber and in two B/Ge co-doped fibers. Computer simulations were performed based on previously published experimental data. We found that the dispersion curves belonging to the lowest-order cladding modes are the most affected by the temperature changes, but those changes are minute when considering cladding modes with dispersion turning points (DTP) in the telecommunication windows. The temperature sensit
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Borzycki, Krzysztof. "Temperature dependence of polarization mode dispersion in tight-buffered optical fibers." Journal of Telecommunications and Information Technology, no. 1 (June 25, 2023): 56–66. http://dx.doi.org/10.26636/jtit.2008.1.863.

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—Experiments and theoretical analysis of influence of temperature on polarization mode dispersion (PMD) in single mode optical fibers and cables are presented. Forces generated by contracting buffer create optical birefringence and increase fiber PMD at low temperatures. Single mode fiber (SMF) in 0.9 mm polymeric tight-buffer can exhibit an extra component of PMD exceeding 0.3 ps/√km in such conditions. On the other hand, tight-buffered spun nonzero dispersion-shifted fibers (NZDSF) and optical units with stranded single mode fibers have showed good stability of PMD over wide range of tempera
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Guo, Zhaofeng, Haotian Jia, Xiangen Liu, and Zhonghua Shen. "Inversion of temperature dependence of elastic constants using SAWS dispersion by Floquet-Bloch theory." Journal of Physics: Conference Series 2966, no. 1 (2025): 012004. https://doi.org/10.1088/1742-6596/2966/1/012004.

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Abstract In this paper, we propose a method grounded in Floquet-Bloch theory for calculating the SAW dispersion curve and invert temperature dependence of the elastic constant based on laser heating, where the temperature dependence is converted into a depth distribution. In our previous work, the computational method utilized perturbation theory, which becomes ineffective at high temperatures. We conduct a comparative analysis of SAW dispersion in TC4 with high surface temperatures and large temperature gradients induced by pulsed laser irradiation, utilizing both perturbation theory and Floq
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Alava, Cristina, and Brian R. Saunders. "Polymer stabilisers for temperature-induced dispersion gelation: Versatility and control." Journal of Colloid and Interface Science 293, no. 1 (2006): 93–100. http://dx.doi.org/10.1016/j.jcis.2005.06.027.

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Ashaduzzaman, Md, and Masashi Kunitake. "Aqueous Dispersion and Temperature Induced Reversible Fluorescence Properties of 1-Pyrenecarboxaldehyde." International Letters of Chemistry, Physics and Astronomy 6 (September 2013): 55–62. http://dx.doi.org/10.18052/www.scipress.com/ilcpa.6.55.

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The fluorescence intensities for various vibronic fine structures in the 1-pyrenecarboxaldehyde (PyCHO) fluorescence show strong environment dependence. In aqueous solvent, the distribution of dye is highly depended on its concentration labels and varies from excimer to monomeric state. UV-Vis Spectroscopic analysis could not able to detect dye below 10-7M concentration, whereas a new monomeric peak at 342 nm was observed after heating and cooling treatment at above the concentration. At 10-8M concentration, only monomeric distribution of 1-PyCHO reveals a strong temperature (20-50 °C) induced
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Ashaduzzaman, Md, and Masashi Kunitake. "Aqueous Dispersion and Temperature Induced Reversible Fluorescence Properties of 1-Pyrenecarboxaldehyde." International Letters of Chemistry, Physics and Astronomy 6 (January 10, 2013): 55–62. http://dx.doi.org/10.56431/p-jqlhr1.

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The fluorescence intensities for various vibronic fine structures in the 1-pyrenecarboxaldehyde (PyCHO) fluorescence show strong environment dependence. In aqueous solvent, the distribution of dye is highly depended on its concentration labels and varies from excimer to monomeric state. UV-Vis Spectroscopic analysis could not able to detect dye below 10-7M concentration, whereas a new monomeric peak at 342 nm was observed after heating and cooling treatment at above the concentration. At 10-8M concentration, only monomeric distribution of 1-PyCHO reveals a strong temperature (20-50 °C) induced
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Hisham, Hisham K. "Low Dispersion Performance of Plastic Fiber Grating Using Genetic Algorithms." Al-Nahrain Journal for Engineering Sciences 21, no. 1 (2018): 45. http://dx.doi.org/10.29194/njes21010045.

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In this paper, we suppose a method for reducing the dispersion in the plastic optical fiber (POF) Bragg gratings based on optimizing the grating coupling-strength (ξ) using genetic algorithms. The effects of average refractive index (δn) and temperature (T) change on the dispersion properties are investigated numerically. It is found that the amplitude of the δn for low dispersion performance needs to be reduced at the cost of the design complexity of the POF Bragg gratings. Owing to the unusually large and negative thermo-optic coefficient of the POF, the dispersion due to the wavelength shif
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Pamungkas, Mauludi Ariesto, Ghozi Zhorif Althof, Farid Surya, Gancang Saroja, and Agus Dardiri. "Molecular Dynamics Simulations of Temperature-Induced Changes in Water Nanodroplet-Graphene Nanoribbon." Journal of Physics: Conference Series 2980, no. 1 (2025): 012034. https://doi.org/10.1088/1742-6596/2980/1/012034.

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Abstract Wettability is a critical factor in diverse fields such as oil recovery, microfluidics, and nanotechnology. The behavior of liquid droplets on solid surfaces, influenced by surface properties, has been extensively investigated. Understanding these interactions is essential for controlling droplet dispersion. This study investigates the impact of temperature on the interaction between water nanodroplets and graphene nanoribbons (GNRs) using molecular dynamics (MD) simulations. The results demonstrate that the potential energy, pressure, and enthalpy increase with the addition of 1-3 wa
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Дисертації з теми "Temperature induced dispersion"

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McKeon, Kristin Dianne. "Albumin Adsorption: Inferences of Protein Interactions Measured by Sedimentation both Between Species and Induced by Denaturing." Thesis, Virginia Tech, 2008. http://hdl.handle.net/10919/32082.

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Biological development and progression are managed by a diverse macromolecular group called proteins. Protein structure results from a complex folding process that leads to a final active form. This protein state is susceptible to changes in the surrounding environment and an incorrect structure can be produced. Changes in the protein conformation can lead to the formation of protein aggregates. Adsorption of proteins onto surfaces is utilized in many research analyses, but is capable of irreversibly changing the protein structure and causing aggregation. Albumin is a plasma protein that adsor
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Частини книг з теми "Temperature induced dispersion"

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Mark, James E., Dale W. Schaefer, and Gui Lin. "Some Characterization Techniques Useful for Polysiloxanes." In The Polysiloxanes. Oxford University Press, 2015. http://dx.doi.org/10.1093/oso/9780195181739.003.0006.

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The general approach used in choosing a polymer suitable for a particular application is: . . . Polymerization ↔ Structure ↔ Properties ↔ Application . . . For example, if one wants a polymer for fire-resistant fabrics, then a polymer with good high-temperature properties is required, which implies aromatic structures, which suggest condensation polymerizations. More relevant here, however, would be that a polymer remains elastomeric at low temperatures. This requirement evokes a polymer with high flexibility (low glass transition temperature), which indicates use of the polymerization techniq
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Fakhari Ahmad, Cintolesi Carlo, Petronio Andrea, Roman Federico, and Armenio Vincenzo. "Numerical Simulation of Hot Smoke Plumes from Funnels." In Technology and Science for the Ships of the Future. IOS Press, 2018. https://doi.org/10.3233/978-1-61499-870-9-238.

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The flow around ship over-structures is characterized by both separation phenomena with recirculation regions at high Reynolds number, and the fast ejection of hot smokes from chimneys. These two features are of the utmost importance for two linked goals in the ship design, namely the aerodynamic drag reduction and the preservations of passengers comfort. In particular, the latter depends on different flow aspects, among the others: the turbulent fluctuations intensity, the smoke temperature and pollutant dispersion and the flow induced noise. In this work, we present an open-source solver dev
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Schurtenberger, Peter. "Light scattering in complex micellar systems." In Light Seattering. Oxford University PressOxford, 2015. http://dx.doi.org/10.1093/oso/9780198517832.003.0009.

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Abstract Surfactants in solution exhibit a complex aggregation behaviour as a result of a delicate balance of opposing forces. Micellar solutions and microemulsions represent thermodynamically stable liquid dispersions containing surfactant aggregates, which can often be found in a large region of the phase diagram of two-or multi-component surfactant systemsP-In micellar dispersions, the aggregates are formed by self-assembly of surfactant monomers. While micelles are frequently spherical, they can also exhibit a sphere-to-rod transition and even grow to giant flexible and polymer-like aggreg
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Goswami, Ramasis, Syed Bermullah Qadri, and Chandra Shekar Pande. "Enhancing the Strength of Aluminum-Boron Carbide Composites to a High Degree by Magnesium Addition for Use in Automotive Applications." In Advanced Materials for Emerging Applications (Innovations, Improvements, Inclusion and Impact). BENTHAM SCIENCE PUBLISHERS, 2024. http://dx.doi.org/10.2174/9789815196771124010013.

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We report here a significant enhancement of the hardness of aluminumboron carbide composites by the addition of magnesium. Reactive sintering between boron carbide and aluminum-magnesium occurs by the application of heat and pressure and during subsequent annealing at high-homologous temperatures of the matrix. In this case, the deformation-induced plastic yielding enables the incorporation and dispersion of hard particles in aluminum-matrix. We examine the decomposition behavior of boron carbide at high-homologous temperatures in contact with magnesium and aluminum, and observe the interfacia
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González-Martín, R., I. Negrín-Santamaría, M. Saura-Cayuela, and M. J. Trujillo-Rodríguez. "Supramolecular Solvents (SUPRASs) in Green Sample Preparation." In Green Sample Preparation Techniques. The Royal Society of Chemistry, 2023. http://dx.doi.org/10.1039/bk9781839166419-00254.

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Supramolecular solvents (SUPRASs) are water-immiscible nanostructured liquids composed of a 3D network of amphiphilic aggregates that maintain their structures via non-covalent interactions. These solvents are prepared from aquo/organic solutions of amphiphiles at concentrations above their critical aggregation concentration. Under these conditions, amphiphiles initially self-aggregate to form micelles or vesicles. Coacervation of these nano-aggregates into the 3D network of the SUPRAS is induced by different strategies, including variations in the composition of the initial mixture and modifi
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Тези доповідей конференцій з теми "Temperature induced dispersion"

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Gerretsen, J. H., S. Damen, A. Visser, and U. Lotz. "CO2 Corrosion and Its Inhibition under Liquid Full Disturbed Flow and under Liquid Droplet Impact Conditions." In CORROSION 1993. NACE International, 1993. https://doi.org/10.5006/c1993-93084.

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Abstract Flow induced corrosion has been studied under liquid full water/oil pipe flow conditions. It appeared that whereas an oil/water dispersion gave a strong reduction in corrosion rate in smooth pipe flow, localised attack occurred under disturbed flow conditions. The leading edge of a sudden step-wise contraction was severely attacked and mesa attack was observed just after the contraction. Inhibition of the corrosion of the critical geometry under the impinging flow conditions appeared extremely difficult. The leading edge of the constriction always showed signs of localised attack, eve
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Vidic, K. J., G. Mori, M. Yasir, and D. Knoll. "NaCl- and CaCl2-Induced High Temperature Corrosion of Automotive Exhaust Components." In CORROSION 2018. NACE International, 2018. https://doi.org/10.5006/c2018-11303.

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Abstract The high temperature corrosion behavior of ferritic stainless steel UNS S43940 has been investigated by means of cyclic exposure tests (CETs) at 650°C, in presence of NaCl and CaCl2 containing salt deposits and in test gases with different O2 and H2O concentrations. CETs of steel sheets, coated with a salt layer and steel sheets, covered by a salt-contaminated glass fiber-insulation mat, have been performed. Tested salts were NaCl and CaCl2xH2O in different weight ratios. Steel specimen have been investigated gravimetrically, optically and by means of scanning electron microscopy (SEM
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Kloesel, Michael, Nicholas Ury, Steven Maldonado, et al. "Deposit-Induced Corrosion of Ni-Cr Alloys in Calcium-Based Salt Mixtures." In CONFERENCE 2024. AMPP, 2024. https://doi.org/10.5006/c2024-21212.

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Abstract Corrosion of gas turbine components at high temperatures under salt deposits is a critical issue that adversely affects their performance and longevity. Calcium-containing compounds have been detected in the analysis of failed components. These compounds may have different origins, e.g., sand particles, salts from marine atmospheres, atmospheric pollutants, etc. The consequences of the reactions between the salt deposits and the alloy substrate can result in enhanced solute depletion, and removal/destruction of the external protective scale. In this presentation, the focus will be on
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Saricimen, H., N. R. Jarrah, and I. M. Allam. "Investigation of Corrosion of Commercial Grade AISI 316L Stainless Steel Liner Plates in Desalination Plant Conditions." In CORROSION 1994. NACE International, 1994. https://doi.org/10.5006/c1994-94505.

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Abstract The corrosion of AISI Type 316L stainless steel (316L SS) liner plates in the flash chambers of a multistage flash (MSF) desalination plant, located on the Arabian Gulf coast was investigated. The 316L SS liner plates developed severe corrosion within six years of operation. This study was conducted to develop an understanding of the mode and causes of corrosion of the liner plates, and to determine the effect of heat treatment (annealing or heat effect during welding) and temperature of salt solution on corrosion of the liner plates. Specimens of the liner plates were studied in as-r
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Guill, A., I. Trapero, E. Roses, et al. "QT dispersion induced by local temperature variations." In 2008 35th Annual Computers in Cardiology Conference. IEEE, 2008. http://dx.doi.org/10.1109/cic.2008.4749137.

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Rathje, J., and M. Andersen. "Temperature induced change in the dispersion spectrum of dispersion compensating fibers." In OFC 2003 - Optical Fiber Communication Conference and Exhibition. IEEE, 2003. http://dx.doi.org/10.1109/ofc.2003.316167.

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Fritzsche, Daniel, and Dirk Breuer. "Temperature induced dispersion variation and equalization in 107Gb/s transmission systems." In Optics East 2007, edited by Werner Weiershausen, Benjamin B. Dingel, Achyut K. Dutta, and Ken-ichi Sato. SPIE, 2007. http://dx.doi.org/10.1117/12.733976.

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Rabroker, G. Andrew, C. Steve Suh, Christian P. Burger, and Ravinder Chona. "Analytical Feasibility of Laser Induced Stress Wave Thermometry Applied to Silicon Wafers." In ASME 1997 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/imece1997-1226.

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Abstract A model correlating the group velocity of guided plate waves to temperature in anisotropic silicon substrate is presented. The model is developed through numerical solution and manipulation of the dispersion relations while elastic constants are treated as functions of temperature. Results demonstrate that adequate thermal resolution is provided by both the lowest order antisymmetric and symmetric dispersive Lamb wave modes to serve as an effective diagnostic in a non contact thermometry scheme in rapid thermal processing (RTP) of silicon wafers.
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Nagai, H., M. Yamanishi, Y. Kan, I. Suemune, Y. Ide, and R. Lang. "Exciton-Induced Dispersion of Electroreflectance in a GaAs/AlAs Quantum Well Structure at Room Temperature." In 1986 International Conference on Solid State Devices and Materials. The Japan Society of Applied Physics, 1986. http://dx.doi.org/10.7567/ssdm.1986.c-8-2.

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Tilley, B. S. "Thermally-Induced Dispersion of Coolant Mixtures Through Heated Layered Materials." In ASME 2013 Heat Transfer Summer Conference collocated with the ASME 2013 7th International Conference on Energy Sustainability and the ASME 2013 11th International Conference on Fuel Cell Science, Engineering and Technology. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/ht2013-17737.

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Although the experimental capability to design and fabricate specific microstructures in materials has advanced significantly in the past few decades, a description of their effective thermal behavior on the macroscale has not kept pace. The length scales of the fundamental processes (approximately 100 nm–10 micron, or microscale) are typically several orders of magnitude smaller than the scales dictated by a given application (1 mm–1 cm, or macroscale). We are interested in extending classical asymptotic approaches to allow for the spatial pattern wavenumber to vary on the macroscale variable
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Звіти організацій з теми "Temperature induced dispersion"

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Brydie, Dr James, Dr Alireza Jafari, and Stephanie Trottier. PR-487-143727-R01 Modelling and Simulation of Subsurface Fluid Migration from Small Pipeline Leaks. Pipeline Research Council International, Inc. (PRCI), 2017. http://dx.doi.org/10.55274/r0011025.

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The dispersion and migration behavior of hydrocarbon products leaking at low rates (i.e. 1bbl/day and 10 bbl/day) from a pipeline have been studied using a combination of experimental leakage tests and numerical simulations. The focus of this study was to determine the influence of subsurface engineered boundaries associated with the trench walls, and the presence of a water table, upon the leakage behavior of a range of hydrocarbon products. The project numerically modelled three products including diesel, diluted bitumen (dilbit) and gasoline; which were chosen to span a range of fluid types
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