Academic literature on the topic 'Mechanistic model'

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Journal articles on the topic "Mechanistic model"

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Belov, P. A., and S. A. Lurie. "Mechanistic Model of Gravitation." Lobachevskii Journal of Mathematics 44, no. 6 (June 2023): 2240–50. http://dx.doi.org/10.1134/s1995080223060094.

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Riggs, James B., Martin H. Beauford, and Jackie C. Watts. "Model-based control using mechanistic, nonlinear models." ISA Transactions 33, no. 2 (July 1994): 141–46. http://dx.doi.org/10.1016/0019-0578(94)90045-0.

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Suleymanov, V. A., and O. A. Bychkova. "New mechanistic model for gas flow with small liquid rates in pipelines." "Proceedings" of "OilGasScientificResearchProjects" Institute, SOCAR, no. 3 (June 30, 2011): 55–61. http://dx.doi.org/10.5510/ogp20110300083.

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Michalski, Jacek A., and Slawomir Jakiela. "Spherical Droplet Deposition—Mechanistic Model." Coatings 11, no. 2 (February 19, 2021): 248. http://dx.doi.org/10.3390/coatings11020248.

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In the currently existing physical models of wetting a solid substrate by a liquid drop, the contact angle is determined on the basis of the equilibrium of forces acting tangentially to the wetted surface at any point in the perimeter of the wetted area, ignoring the forces (or their components) acting perpendicular to this area. In the solution shown in the paper, the equilibrium state of forces acting on a droplet was determined based on the minimum mechanical energy that the droplet achieves in the state of equilibrium. This approach allows one to take into account in the model, in addition to the forces tangential to the wetted surface, also forces perpendicular to it (also the force of adhesion), moreover, these may be dispersed forces acting on the entire interface, not on a single point. The correctness of this approach is confirmed by the derived equations concerning the forces acting on the liquid both tangentially and perpendicularly to the wetted surface. The paper also identifies the areas of solutions in which the obtained equilibrium of forces is stable and areas of unstable equilibrium of forces. The solution is formulated both for isothermal and isochoric system. Based on the experimental data accessible in the literature, the condition that has to be met by the droplets (and their surroundings) during measurements performed under gravity conditions was formulated.
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Chua, K. H., and C. L. Monismith. "Mechanistic Model for Transition Probabilities." Journal of Transportation Engineering 120, no. 1 (January 1994): 144–59. http://dx.doi.org/10.1061/(asce)0733-947x(1994)120:1(144).

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Casini, Lorenzo. "How to Model Mechanistic Hierarchies." Philosophy of Science 83, no. 5 (December 2016): 946–58. http://dx.doi.org/10.1086/687877.

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MARSHALL, HELEN L., RICHARD J. GEIDER, and KEVIN J. FLYNN. "A mechanistic model of photoinhibition." New Phytologist 145, no. 2 (February 2000): 347–59. http://dx.doi.org/10.1046/j.1469-8137.2000.00575.x.

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Zaheri, Maryam, Linda Dib, and Nicolas Salamin. "A Generalized Mechanistic Codon Model." Molecular Biology and Evolution 31, no. 9 (June 23, 2014): 2528–41. http://dx.doi.org/10.1093/molbev/msu196.

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Wright, A. Armean, Ghassan N. Fayad, James F. Selgrade, and Mette S. Olufsen. "Mechanistic model of hormonal contraception." PLOS Computational Biology 16, no. 6 (June 29, 2020): e1007848. http://dx.doi.org/10.1371/journal.pcbi.1007848.

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Severtson, Steven J., and Sujit Banerjee. "Mechanistic model for collisional desorption." Environmental Science & Technology 27, no. 8 (August 1993): 1690–92. http://dx.doi.org/10.1021/es00045a028.

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Dissertations / Theses on the topic "Mechanistic model"

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Yeung, Luk Chong. "A mechanistic model of calcium-dependent synaptic plasticity /." View online version; access limited to Brown University users, 2005. http://wwwlib.umi.com/dissertations/fullcit/3174704.

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Drost, Roelof Gerrit. "MAIS, a mechanistic model of maize growth and development." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/MQ61892.pdf.

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Lenting, Christoph [Verfasser]. "Glass corrosion : Towards a Unifying Mechanistic Model / Christoph Lenting." Bonn : Universitäts- und Landesbibliothek Bonn, 2019. http://d-nb.info/1201727863/34.

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Baird, Mark E. "Towards a verified mechanistic model of plankton population dynamics." Thesis, University of Warwick, 1999. http://wrap.warwick.ac.uk/1123/.

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Plankton are a signicant component of the biogeochemical cycles that impact on the global climate. Plankton ecosystems constitute around 40 % of the annual global primary productivity, and the sinking of plankton to the deep ocean (the so-called biological pump) is the largest permanent loss of carbon from the coupled atmosphere-surface ocean-land system. The biological pump need only increase by 25 % to cancel the anthropogenically-released ux of CO2 into the atmosphere. Mechanistic models of atmosphere-ocean dynamics have proved to have superior predictive capabilities on climate phenomena, such as the El Ni~no, than empirical models. Mechanistic models are based on fundamental laws describing the underlying processes controlling a particular system. Existing plankton population models are primarily empirical, raising doubts to their ability to forecast the behaviour of the plankton system, especially in an altered global climate. This thesis works towards a mechanistic model of plankton population dynamics based primarily on physical laws, and using laboratory-determined parameters. The processes modelled include: diusion and convection to the cell surface, light capture by photosynthetic pigments, sinking and encounter rates of predators and prey. The growth of phytoplankton cells is modelled by analogy to chemical kinetics. The equations describing each process are veried by comparison to existing laboratory experiments. Process-based model verication is proposed as a superior diagnostic tool for model validation than verication based on the changing state of the system over time. To increase our ability to undertake process-based verication, a model of stable isotope fractionation during phytoplankton growth is developed and tested. The developed model has been written to complement other process-based models of biogeochemical cycles. A suite of process-based, biogeochemical models, coupled to an atmosphere-ocean circulation model, will have superior predictive capabilities compared with present global climate models.
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Nobari, Amir Hossein. "Mechanistic jet impingement model for cooling of hot steel plates." Thesis, University of British Columbia, 2014. http://hdl.handle.net/2429/47099.

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Accelerated cooling on the run-out table of a hot rolling mill is a key technology to tailor microstructure and properties of advanced steels. Thus, it is crucial to develop accurate heat transfer models in order to predict the temperature history of the steel plates on run-out tables. The present study describes a strategy to develop a mechanistic cooling model to simulate the temperature of the plate cooled by top water nozzles on a run-out table. Systematic experiments have been carried out on a pilot scale run-out table facility using two types of top nozzles: planar (curtain) and circular (axisymmetric) nozzles. Experimental results for cooling of stationary plates showed that the heat transfer rate depends strongly on the distance from the jet especially in the temperature range where the transition boiling regime occurs. Based on experimental results, a boiling curve model has been proposed that takes into account boiling heat transfer mechanisms and maps local boiling curves for cooling of stationary steel plates. The effects of water flow rate and water temperature on the heat extraction from the plate have been included in the model. Then, systematic experimental heat transfer studies were conducted to investigate the effect of plate speed on the heat transfer rate. It was found that the plate motion influences the heat transfer rate in the film boiling and transition boiling regimes; however, it does not have an effect on the heat flux in the nucleate boiling regime. Moreover, for the circular nozzle system, it was found that the nucleate boiling heat flux does not change with lateral distance. However, heat flux in the film boiling and transition boiling regimes decreases with increasing distance from the longitudinal centerline of the plate. In the next step, a cooling model was proposed by accounting for the boiling curves of single nozzle cooling for moving plates. Transient heat conduction within the plate was analyzed and surface heat flux and temperature histories were predicted. The validity of the cooling model was examined with multiple nozzles experimental data from the literature. Very good agreement with experimental results has been obtained.
Applied Science, Faculty of
Materials Engineering, Department of
Graduate
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Deen, William. "A mechanistic model of common ragweed based on photothermal time." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0019/NQ47389.pdf.

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Ma, John W. "Mechanistic model studies of living nitroxide-mediated styrene miniemulsion polymerization." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2002. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/NQ65680.pdf.

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Hamzat, Kadri Obafemi. "A semi-mechanistic model based on oil expression from groundnuts." Thesis, Cranfield University, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.333986.

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Ma, Yuxin. "Empirical and Mechanistic Modelling for Process Understanding in Digital Soil Mapping." Thesis, The University of Sydney, 2019. https://hdl.handle.net/2123/21413.

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Empirical prediction of soil properties coupled with an understanding of soil processes, can uncover the complexity of the soil system. Digital soil mapping (DSM) has revolutionized the way soil information is delivered. While empirical DSM has greatly improved the quantitative prediction, we should be able to incorporate our physical and mechanistic understanding of the processes. Likewise, we should be able to use empirical knowledge to inform process-based models. This thesis delivers mechanistic and empirical models to improve the understanding of soil genesis and mapping of soil functional properties and finding the relationships between soil and environmental factors. Chapter 2 first critically reviews pedology models and DSM concepts, mapping soil classes, mapping soil profiles, mapping pedological features and processes, the relation between pedological knowledge and DSM, and the application of mechanistic pedological models in DSM. Chapter 3 investigates the use of a mechanistic pedogenesis model, State Space Soil Production and Assessment Model (SSSPAM) for modelling the spatiotemporal evolution of particle-size distribution (PSD). In Chapter 4, we used process-based understanding in a mechanistic model to help us make a better prediction of the 4D spatiotemporal distribution of SOC. Chapter 5 evaluates the proposition that soil properties can be evaluated at any depth by comparing the multi-layered 2.5D and 3D modelling with soil depth as a predictor variable. Chapter 6 investigates whether data provided from a rapid and non-destructive proximal sensor can be used to directly predict the provenance of soil samples. Overall, this thesis demonstrates that to comprehensively explain the complexity of the soils, their dynamics and relation to the soil-forming factors, it is beneficial to include knowledge of processes to model soil profile distribution and identify the unique pattern of soil distribution.
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Van, Tonder Jacob John. "Development of an in vitro mechanistic toxicity screening model using cultured hepatocytes." Thesis, University of Pretoria, 2011. http://hdl.handle.net/2263/24162.

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In vitro testing includes both cell-based and cell-free systems that can be used to detect toxicity induced by xenobiotics. In vitro methods are especially useful in rapidly gathering intelligence regarding the toxicity of compounds for which none is available such as new chemical entities developed in the pharmaceutical industry. In addition to this, in vitro investigations are invaluable in providing information concerning mechanisms of toxicity of xenobiotics. This type of toxicity testing has gained popularity among the research and development community because of a number of advantages such as scalability to high throughput screening, cost-effectiveness and predictive power. Hepatotoxicity is one of the major causes of drug attrition and the high cost associated with drug development poses a heavy burden on the development of new chemical entities. Early detection of hepatotoxic agents by in vitro methods will improve lead optimisation and decrease the cost of drug development and reduce drug-induced liver injury. Literature highlights the need for a cellbased in vitro model that is capable of assessing multiple toxicity parameters, which assesses a wider scope of toxicity and would be able to detect subtle types of hepatotoxicity. The present study was aimed at developing an in vitro procedure capable of mechanistically profiling the effects of known hepatotoxin dichlorodiphenyl trichloroethane (DDT) and its metabolites, dichlorodiphenyl dichloroethylene (DDE) and dichlorodiphenyl dichloroethane (DDD) on an established liver-derived cell line, HepG2, by evaluating several different aspects of cellular function using a number of simultaneous in vitro assays on a single 96 well microplate. Examined parameters have been suggested by the European Medicines Agency and include: cell viability, phase I metabolism, oxidative stress, mitochondrial toxicity and mode of cell death (apoptosis vs. necrosis). To further assess whether the developed method was capable of detecting hepatoprotection, the effect of the known hepatoprotectant, N-acetylcysteine, was determined. Viability decreased in a dose-dependent manner yielding IC50 values of 54 μM, 64 μM and 44 μM for DDT, DDE and DDD, respectively. Evaluation of phase I metabolism showed that cytochrome P4501A1 activity was dose-dependently induced. Test compounds decreasedlevels of reactive oxygen species, and significantly hyperpolarised the mitochondrialmembrane potential. Assessment of the mode of cell death revealed a significant elevation of caspase-3 activity, with DDD proving to be most potent. DDT alone induced dosedependent loss of membrane integrity. These results suggest that the tested compounds produce apoptotic death likely due to mitochondrial toxicity with subsequent caspase-3 activation and apoptotic cell death. The developed in vitro assay method reduces the time it would take to assess the tested parameters separately, produces results from multiple endpoints that broadens the scope of toxicity compared to single-endpoint methods. In addition to this the method provides results that are truly comparable as all of the assays utilise the same batch of cells and are conducted on the same plate under the exact same conditions, which eliminates a considerable amount of variability that would be unavoidable otherwise. The present study laid a solid foundation for further development of this method by highlighting the unforeseen shortcomings that can be adjusted to improve scalability and predictive power.
Thesis (PhD)--University of Pretoria, 2011.
Pharmacology
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Books on the topic "Mechanistic model"

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Baird, Mark E. Towards a verified mechanistic model of plankton population dynamics. [s.l.]: typescript, 1999.

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Michelsen, Finn Are. A dynamic mechanistic model and model-based analysis of a continuous Kamyr digester. Trondheim: Universitetet i Trondheim, 1995.

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Krol, A. A. A mechanistic model for the leaching of retorted rundle oil shale. S.l: s.n, 1985.

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Great Britain. Health and Safety Executive., ed. Risk assessment of inhaled particles using a physiologically based mechanistic model. Sudbury: HSE Books, 2003.

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M, Tayal, Atomic Energy of Canada Limited. CANDU., and IAEA Technical Committee, eds. INTEGRITY: A semi-mechanistic model for stress corrosion cracking of fuel. Mississauga, Ont: AECL CANDU, 1994.

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Johannes Adrianus Sebastianus Joseph Razenberg. Epoxidation of alkenes catalysed by a mono-oxygenase model system: Mechanistic aspects. S.l: s.n.], 1986.

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Perkins, Steven W. Mechanistic-empirical modeling and design model development of geosynthetic reinforced flexible pavements: Final report. Bozeman, Mont: Western Transportation Institute, Dept. of Civil Engineering, Montana State University, 2001.

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Perkins, Steven W. Mechanistic-empirical modeling and design model development of geosynthetic reinforced flexible pavements: Appendix C--DARWin output. Bozeman, Mont: Western Transportation Institute, Dept. of Civil Engineering, Montana State University, 2001.

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J, Heames T., U.S. Nuclear Regulatory Commission. Office of Nuclear Regulatory Research. Division of Systems Research., and Sandia National Laboratories, eds. VICTORIA: A mechanistic model of radionuclide behavior in the reactor coolant system under severe accident conditions. Washington, DC: Division of Systems Research, Office of Nuclear Regulatory Research, U.S. Nuclear Regulatory Commission, 1992.

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Sorin, Andrei. Software and Mind: The Mechanistic Myth and Its Consequences. Toronto, Canada: Andsor Books, 2013.

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Book chapters on the topic "Mechanistic model"

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Thakur, Ajit K. "Model: Mechanistic vs Empirical." In New Trends in Pharmacokinetics, 41–51. Boston, MA: Springer US, 1991. http://dx.doi.org/10.1007/978-1-4684-8053-5_3.

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Ohno, Atsuyoshi, and Satoshi Ushida. "Asymmetric Reduction by Model Compounds of NAD(P)H." In Mechanistic Models of Asymmetric Reductions, 16–24. Berlin, Heidelberg: Springer Berlin Heidelberg, 1986. http://dx.doi.org/10.1007/978-3-642-48868-9_5.

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Waskan, Jonathan. "From Neural Circuitry to Mechanistic Model-Based Reasoning." In Springer Handbook of Model-Based Science, 671–92. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-30526-4_31.

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Lurie, S. A., P. A. Belov, and Y. O. Solyaev. "Mechanistic Model of Generalized Non-antisymmetrical Electrodynamics." In Dynamical Processes in Generalized Continua and Structures, 379–94. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-11665-1_21.

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Huvstig, Anders. "Mechanistic Model for Road Design in Sweden." In Bearing Capacity of Roads, Railways and Airfields, 181–89. London: CRC Press, 2021. http://dx.doi.org/10.1201/9781003078814-21.

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Martin, Geoffrey V., and Eman Simbawa. "Mechanistic Model of Tumor Response to Immunotherapy." In An Introduction to Physical Oncology, 123–34. Boca Raton, FL : CRC Press, [2017] | Series: Chapman & Hall/CRC mathematical and computational biology: Chapman and Hall/CRC, 2017. http://dx.doi.org/10.4324/9781315374499-9.

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Link, S. O., M. F. Driscoll, and T. H. Nash. "CO2 Exchange in Lichens: Towards a Mechanistic Model." In Lichen Physiology and Cell Biology, 77–91. Boston, MA: Springer US, 1985. http://dx.doi.org/10.1007/978-1-4613-2527-7_6.

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Brown, R. S. "Carbonic Anhydrases: The Mechanistic, Spectroscopic, and Model Studies." In Enzymatic and Model Carboxylation and Reduction Reactions for Carbon Dioxide Utilization, 145–80. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-0663-1_9.

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Hartman, Fred C. "Rubisco: Active-Site Characterization and Mechanistic Implications." In Enzymatic and Model Carboxylation and Reduction Reactions for Carbon Dioxide Utilization, 347–65. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-0663-1_20.

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Abonyi, Janos, Hans Roubos, Robert Babuska, and Ferenc Szeifert. "Interpretable Semi-Mechanistic Fuzzy Models by Clustering, OLS and FIS Model Reduction." In Interpretability Issues in Fuzzy Modeling, 221–48. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-540-37057-4_10.

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Conference papers on the topic "Mechanistic model"

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Clark, R. K., and K. L. Bickham. "A Mechanistic Model for Cuttings Transport." In SPE Annual Technical Conference and Exhibition. Society of Petroleum Engineers, 1994. http://dx.doi.org/10.2118/28306-ms.

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Smith, Mark D. "Mechanistic model of line edge roughness." In SPIE 31st International Symposium on Advanced Lithography, edited by Qinghuang Lin. SPIE, 2006. http://dx.doi.org/10.1117/12.659627.

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Batycky, J. P., R. P. Leaute, and B. A. Dawe. "A Mechanistic Model of Cyclic Steam Stimulation." In International Thermal Operations and Heavy Oil Symposium. Society of Petroleum Engineers, 1997. http://dx.doi.org/10.2118/37550-ms.

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Rackauckas, Christopher, Roshan Sharma, and Bernt Lie. "Hybrid Mechanistic + Neural Model of Laboratory Helicopter." In SIMS Conference on Simulation and Modelling SIMS 2020, September 22-24, Virtual Conference, Finland. Linköping University Electronic Press, 2021. http://dx.doi.org/10.3384/ecp20176264.

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Kim, Yong-Soo, and Chan-Bok Lee. "Mechanistic Two Stage Fission Gas Release Model." In 10th International Conference on Nuclear Engineering. ASMEDC, 2002. http://dx.doi.org/10.1115/icone10-22635.

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In this study, a mechanistic two stages model is developed which analytically simulates the two-step diffusion processes, grain lattice diffusion and grain boundary diffusion, coupled with the bubbles trap/resolution. Mathematical manipulation reveals that the release at high burn-up depend on the ratio of the diffusivities in the both processes, i.e., α ≅ Dveff/Dgbeff where Dveff and Dgbeff are effective volume and grain boundary diffusion coefficients, respectively. Thus, the ratio α is incorporated in the time-dependent third kind boundary condition at the equivalent grain surface. This model brings forth analytical solutions of the fractional release which are identical to that of either ANS5.4 or modified ANS5.4 model when α goes to the infinity. It turns out that this model describes the release behavior well in the high burn-up fuel and puts out a comparable prediction to the solution of FRAPCON-3 model under the same condition. It is also demonstrated that the new factor α not only ease the computational treatment for the high burn-up fuel performance evaluation, but also enables us to possibly separate the burn-up enhancement from the diffusion coefficients and to easily simulate the bubble-related phenomena in the grain boundary.
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Papanicolaou, A. N. (Thanos), J. T. Sanford, D. C. Dermisis, and G. A. Mancilla. "A Mechanistic Model to Simulate Rill Erosion." In Watershed Management Conference 2010. Reston, VA: American Society of Civil Engineers, 2010. http://dx.doi.org/10.1061/41143(394)98.

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Gajjela, Rohit R., Shiv G. Kapoor, and Richard E. DeVor. "A Mechanistic Force Model for Contour Turning." In ASME 1998 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/imece1998-1025.

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Abstract In this paper a mechanistic model for contour turning is presented. A chip load model is developed for general contour turning process. Analytical expressions are derived for chip thickness and chip load in a simple case of contour turning. A generalized numerical procedure is also developed for evaluation of various cutting parameters like cutting velocity, effective lead angle, chip thickness, chip load, normal rake angle, and chip flow angle. The effects of these parameter variations on the cutting forces are analyzed. As a special case hemispherical turning is considered for model validation. Simple straight turning tests are employed for model calibration. The interference between tool and workpiece and ploughing are identified as possible causes for an abrupt increase observed in the cutting forces. Use of circular inserts with large nose radius eliminates this problem. Experimental validation is done with circular inserts.
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Seok, Ho, and Soon-Heung Chang. "MECHANISTIC MODEL OF THE INVERTED ANNULAR FILM BOILING." In International Heat Transfer Conference 9. Connecticut: Begellhouse, 1990. http://dx.doi.org/10.1615/ihtc9.4180.

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Yano, K. "Mechanistic Model of Hot-Spot: A Unifying Framework." In Shock Compression of Condensed Matter - 2001: 12th APS Topical Conference. AIP, 2002. http://dx.doi.org/10.1063/1.1483702.

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Yeoh, G. H., and J. Y. Tu. "A Mechanistic Model for Predicting Subcooled Boiling Flow." In ASME/JSME 2003 4th Joint Fluids Summer Engineering Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/fedsm2003-45571.

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Population balance equations combined with a three-dimensional two-fluid model are employed to predict subcooled boiling flow at low pressure in a vertical annular channel. The MUSIG (MUltiple-SIze-Group) model implemented in CFX4.4 is extended to account for the wall nucleation and condensation in the subcooled boiling regime. Comparison of model predictions against local measurements is made for the void fraction, bubble Sauter diameter and gas and liquid velocities covering a range of different mass and heat fluxes and inlet subcoolings. Good agreement is achieved with the local radial void fraction, bubble Sauter diameter and liquid velocity profiles against measurements. However, significant weakness of the model is evidenced in the prediction of the vapor velocity. Work is in progress to circumvent the deficiency of the extended MUSIG model by the consideration of an algebraic slip model to account for bubble separation.
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Reports on the topic "Mechanistic model"

1

Aagesen Jr, Larry, Jacob Hirschhorn, and Chao Jiang. Mechanistic FCCI model for BISON. Office of Scientific and Technical Information (OSTI), August 2023. http://dx.doi.org/10.2172/1999521.

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Li, Meimei, Weiying Chen, and K. Natesan. Development of a mechanistic thermal aging model for Grade 91. Office of Scientific and Technical Information (OSTI), August 2018. http://dx.doi.org/10.2172/1485132.

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Capps, Nathan, Brian Wirth, Oliver Baldwin, Cade Brinkley, and Charles Lieou. Status of Mechanistic Fission Gas Model in High Burnup Fuel. Office of Scientific and Technical Information (OSTI), September 2023. http://dx.doi.org/10.2172/2217001.

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Yoo, Junsoo. Development of a Mechanistic Model for Predicting Sliding Vapor Bubble Growth. Office of Scientific and Technical Information (OSTI), August 2017. http://dx.doi.org/10.2172/1468535.

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Jerden, James, and Sara Thomas. Mechanistic source term development for liquid fueled MSRs--model development update. Office of Scientific and Technical Information (OSTI), January 2020. http://dx.doi.org/10.2172/1769029.

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Hu, Tianchen, Hing Choi, and Mark Messner. A mechanistic model for creep and thermal aging in Alloy 709. Office of Scientific and Technical Information (OSTI), September 2023. http://dx.doi.org/10.2172/1999400.

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Zavarin, M., S. K. Roberts, T. P. Rose, and D. L. Phinney. Validating Mechanistic Sorption Model Parameters and Processes for Reactive Transport in Alluvium. Office of Scientific and Technical Information (OSTI), May 2002. http://dx.doi.org/10.2172/15002138.

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Ramakrishnan, Aravind, Ashraf Alrajhi, Egemen Okte, Hasan Ozer, and Imad Al-Qadi. Truck-Platooning Impacts on Flexible Pavements: Experimental and Mechanistic Approaches. Illinois Center for Transportation, November 2021. http://dx.doi.org/10.36501/0197-9191/21-038.

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Truck platoons are expected to improve safety and reduce fuel consumption. However, their use is projected to accelerate pavement damage due to channelized-load application (lack of wander) and potentially reduced duration between truck-loading applications (reduced rest period). The effect of wander on pavement damage is well documented, while relatively few studies are available on the effect of rest period on pavement permanent deformation. Therefore, the main objective of this study was to quantify the impact of rest period theoretically, using a numerical method, and experimentally, using laboratory testing. A 3-D finite-element (FE) pavement model was developed and run to quantify the effect of rest period. Strain recovery and accumulation were predicted by fitting Gaussian mixture models to the strain values computed from the FE model. The effect of rest period was found to be insignificant for truck spacing greater than 10 ft. An experimental program was conducted, and several asphalt concrete (AC) mixes were considered at various stress levels, temperatures, and rest periods. Test results showed that AC deformation increased with rest period, irrespective of AC-mix type, stress level, and/or temperature. This observation was attributed to a well-documented hardening–relaxation mechanism, which occurs during AC plastic deformation. Hence, experimental and FE-model results are conflicting due to modeling AC as a viscoelastic and the difference in the loading mechanism. A shift model was developed by extending the time–temperature superposition concept to incorporate rest period, using the experimental data. The shift factors were used to compute the equivalent number of cycles for various platoon scenarios (truck spacings or rest period). The shift model was implemented in AASHTOware pavement mechanic–empirical design (PMED) guidelines for the calculation of rutting using equivalent number of cycles.
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9

Johnson. L51618 Assess Mechanistic Multiphase Methods Large Pipe Diameter. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), February 1990. http://dx.doi.org/10.55274/r0010543.

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Document draws upon the mechanistic model developed in earlier work (L51527 and L51611) and develops an assessment against independent laboratory data at large pipe diameter. The principal comparisons involve flow regime maps, pressure drop and liquid hold-up slug flow regime characteristics in one instance. The laboratory data are from three sources.Also see L51583. PR-172-810 II
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Saravanan, Ramalingam. Modulation of extremes in the Atlantic region by modes of climate variability/change: A mechanistic coupled regional model study. Office of Scientific and Technical Information (OSTI), January 2015. http://dx.doi.org/10.2172/1167117.

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