Relevant bibliographies by topics / Distributed parameters line model

Contents

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

Academic literature on the topic 'Distributed parameters line model'

Author: Grafiati
Published: 2 June 2025
Last updated: 31 July 2025

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Journal articles on the topic "Distributed parameters line model"

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Aliev, R. M., and M. M. Aliev. "MODEL OF A RAIL LINE WITH DISCRETELY DISTRIBUTED PARAMETERS." Chronos 7, no. 1(63) (2022): 12–16. http://dx.doi.org/10.52013/2658-7556-63-1-4.

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Aliev, Ravshan. "A Rail line model with distributed parameters of track circuit." IOP Conference Series: Materials Science and Engineering 1152, no. 1 (2021): 012018. http://dx.doi.org/10.1088/1757-899x/1152/1/012018.

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Andrade, Luis de, Helder Leite, and Maria Teresa Ponce de Leao. "TIME-DOMAIN DISTRIBUTED PARAMETERS TRANSMISSION LINE MODEL FOR TRANSIENT ANALYSIS." Progress In Electromagnetics Research B 53 (2013): 25–46. http://dx.doi.org/10.2528/pierb13041804.

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Shikul’skaya, O. M. "A recurrent model for a line with distributed parameters and quantities." Measurement Techniques 50, no. 3 (2007): 245–48. http://dx.doi.org/10.1007/s11018-007-0055-x.

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Yuan Liao and Ning Kang. "Fault-Location Algorithms Without Utilizing Line Parameters Based on the Distributed Parameter Line Model." IEEE Transactions on Power Delivery 24, no. 2 (2009): 579–84. http://dx.doi.org/10.1109/tpwrd.2008.2002698.

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Souza, Newton V., Carolina G. Carvalho, Sérgio Kurokawa, and José Pissolato. "A Distributed-parameters Transmission Line Model Developed Directly in the Phase Domain." Electric Power Components and Systems 41, no. 11 (2013): 1100–1113. http://dx.doi.org/10.1080/15325008.2013.809823.

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M., Arshad Shehzad Hassan Guobing Song Xiaoning Kang Zaibin Jiao Chenqing Wang Sohaib Tahir. "Current Differential Protection for Distributed Transmission Lines using Low Sampling Frequency." International Journal of Engineering Works 2, no. 3 (2015): 42–47. https://doi.org/10.5281/zenodo.16431.

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Current differential protection has been affected negatively by the distributed capacitive current of transmission lines. In order to solve the problem of distributed capacitance current of transmission line, the current differential protection in this paper is based on distributed parameters model of the transmission line. The current formula along with the transmission line is derived under this distributed parameter line model. The differential criterion is constructed with the current calculated from both ends to the set point. In order to improve the practicality of the criterion, the imp
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Zhu, Xun. "Spectral parameters in band models with distributed line intensity." Journal of Quantitative Spectroscopy and Radiative Transfer 45, no. 1 (1991): 33–46. http://dx.doi.org/10.1016/0022-4073(91)90078-5.

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M., Arshad Shehzad Hassan Guobing Song Xiaoning Kang. "A Novel Principle of Current Differential Protection for UHV and EHV Transmission Lines Based on Distributed Parameters Line Model." A Novel Principle of Current Differential Protection for UHV and EHV Transmission Lines Based on Distributed Parameters Line Model 2, no. 4 (2015): 48–53. https://doi.org/10.5281/zenodo.17188.

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Distributed capacitive current of ultra high voltage and extra high voltage (UHV&EHV) transmission lines has a severe negative effect on current differential protection. The current differential protection in this proposed paper is based on distributed parameters line model of the transmission line and has been used to solve the problem of distributive capacitive current of transmission line. Time-domain algorithm has been used to calculate currents at the set point of the line by using both ends current. By adding linear interpolation with low computational rate at each sampling points ha
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Voitkans, Janis, and Arnis Voitkans. "Tesla Coil Theoretical Model and its Experimental Verification." Electrical, Control and Communication Engineering 7, no. 1 (2014): 11–19. http://dx.doi.org/10.1515/ecce-2014-0018.

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Abstract In this paper a theoretical model of Tesla coil operation is proposed. Tesla coil is described as a long line with distributed parameters in a single-wire form, where the line voltage is measured across electrically neutral space. By applying the principle of equivalence of single-wire and two-wire schemes an equivalent two-wire scheme can be found for a single-wire scheme and the already known long line theory can be applied to the Tesla coil. A new method of multiple reflections is developed to characterize a signal in a long line. Formulas for calculation of voltage in Tesla coil b
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Dissertations / Theses on the topic "Distributed parameters line model"

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Chaiwan, Pramote. "NEW ACCURATE FAULT LOCATION ALGORITHM FOR PARALLEL TRANSMISSION LINES." UKnowledge, 2011. http://uknowledge.uky.edu/gradschool_diss/813.

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Electric power systems have been in existence for over a century. Electric power transmission line systems play an important role in carrying electrical power to customers everywhere. The number of transmission lines in power systems is increasing as global demand for power has increased. Parallel transmission lines are widely used in the modern transmission system for higher reliability. The parallel lines method has economic and environmental advantages over single circuit. A fault that occurs on a power transmission line will cause long outage time if the fault location is not located as qu
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Bukvišová, Zuzana. "Modelování rychlých přechodných dějů." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2017. http://www.nusl.cz/ntk/nusl-316921.

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This thesis deals with the high speed transient modelling in the electrical networks. The introduction of this work discusses mathematical models of the individual devices used in the system and focuses on the line representation. It also contains a more detailed description of Bergeron and frequency dependent line model. The objective of this thesis is to design a network model using ATP-EMTP simulation program. In this model, the switching overvoltage caused by shunt reactor switching and lightning overvoltage are simulated. The thesis thoroughly describes the settings of the components used
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Belhocine, Mohamed. "Modélisation et analyse structurelle du fonctionnement dynamique des systèmes électriques." Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLN047/document.

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Cette thèse traite des problématiques relatives à la modélisation, l’analyse et la simulation des systèmes électriques interconnectés. Elle a été principalement motivée par le besoin de comprendre et de clarifier les niveaux de modélisation de certains composants électriques comme les lignes de transmission ainsi que leur habilité à reproduire les différents phénomènes qui présentent un intérêt dans le système. En effet, pour faciliter les études et les simulations, les modèles les plus détaillés et les plus complexes sont généralement remplacés par des modèles plus simples selon le type des p
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Nizamiev, Kamil. "Stochastic Galerkin Model Updating of Randomly Distributed Parameters." University of Akron / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=akron1302884328.

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Pokhrel, Prafulla. "Estimation Of Spatially Distributed Model Parameters Using A Regularization Approach." Thesis, The University of Arizona, 2007. http://hdl.handle.net/10150/193379.

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The high dimensionality of the parameter search space can be solved by the introduction of additional information about the parameters. In this research the information contained in the apriori parameter estimates, derived using the Koren approach (Koren et al. 2000), was used to identify regularization equations that constrain the parameter variability during the calibration process and reduce the dimension of the calibration problem. The study of spatial variability of apriori parameters with respect to the NRCS based curve numbers and the depth of soil showed some recognizable trends that c
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VENTURINI, VIRGINIA. "A NEW METHODOLOGY TO INTEGRATE PARAMETERS IN LUMPED MODELS." University of Cincinnati / OhioLINK, 2001. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1006882648.

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Pihnastyi, O. M., and R. O. Korsun. "The kinetic model of the production line." Thesis, Місто, 2017. http://repository.kpi.kharkov.ua/handle/KhPI-Press/48623.

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The paper discusses methods of constructing the kinetic equation of the technology process. The article presents a model of the interaction of objects of labour with technological equipment, which is the basis for the derivation of the kinetic equation. To describe the state of the production line introduced numerical characteristics.
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Karameh, Fadi Nabih. "On-line identification and control algorithm for system model with jump parameters using wavelets." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/11019.

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Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1996.<br>Includes bibliographical references (leaves 73-75).<br>by Fadi Nabih Karameh.<br>M.S.
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Dheedan, Amer Abdaladeem. "Distributed on-line safety monitor based on safety assessment model and multi-agent system." Thesis, University of Hull, 2012. http://hydra.hull.ac.uk/resources/hull:6065.

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On-line safety monitoring, i.e. the tasks of fault detection and diagnosis, alarm annunciation, and fault controlling, is essential in the operational phase of critical systems. Over the last 30 years, considerable work in this area has resulted in approaches that exploit models of the normal operational behaviour and failure of a system. Typically, these models incorporate on-line knowledge of the monitored system and enable qualitative and quantitative reasoning about the symptoms, causes and possible effects of faults. Recently, monitors that exploit knowledge derived from the application o
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Trimarchi, Biagio. "Distributed Identification of a Network Model for Pandemic Spreading." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021.

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The recent outburst of the Covid-19 epidemic has made clear the necessity of developing dynamical models for the prediction and the control of large scale epidemic systems. Due to the large impact they have on the life of people and on the economy of the countries, it is extremely important to design models that are able to predict the evolution of such complex phenomena. In the thesis a compartmental model for epidemics is developed and implemented in a Python toolbox suited for distributed computation. Based on the proposed model and on available data, an identification algorithm, based on a
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Books on the topic "Distributed parameters line model"

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C, Merrill Walter, Duyar Ahmet, and United States. National Aeronautics and Space Administration., eds. A distributed fault-detection and diagnosis system using on-line parameter estimation. National Aeronautics and Space Administration, 1991.

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C, Merrill Walter, Duyar Ahmet, and United States. National Aeronautics and Space Administration., eds. A distributed fault-detection and diagnosis system using on-line parameter estimation. National Aeronautics and Space Administration, 1991.

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Ivanov, Yuriy, Roman Filonov, and Dzhaniko Murusidzye. Mechanization and technology of animal husbandry: laboratory practical work. INFRA-M Academic Publishing LLC., 2016. http://dx.doi.org/10.12737/14036.

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In the manual questions of technology, mechanization and automation of processes in animal husbandry are considered; bases of the modern production technology of production of animal husbandry are stated; the short description of designs and the principles of work of the equipment used in animal husbandry is given. All material is issued in the form of the separate laboratory works distributed according to the program of a course. In each laboratory work&#x0D; separate groups of cars and the equipment according to their classification and technological appointment are considered; method of cal
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A distributed fault-detection and diagnosis system using on-line parameter estimation. National Aeronautics and Space Administration, 1991.

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Chance, Kelly, and Randall V. Martin. Line Shapes. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780199662104.003.0006.

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Line shapes describe how absorption and emission are spectrally distributed around the line positions formed by rotational, vibrational, and electronic transitions. Line shapes arise from the different processes that spectrally broaden the absorption and emission of radiation. Optical thickness and equivalent width are shown to be fundamentally related to line shape. The fundamental line shape functions for atmospheres including the Gaussian line shape due to molecular motion and the Lorentzian line shape from lifetime broadening, including collision (pressure) broadening are described. Their
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Cheng, Russell. Embedded Model Problem. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198505044.003.0005.

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This chapter introduces embedded models. This is a special case of a parametric model which cannot be obtained simply by setting the parameters to particular values in a simple way. An example is the regression function y = b[1−exp(−ax)], which is always curved when a and b have fixed values. But letting a tend to zero and b tend to infinity simultaneously, whilst keeping ab = c fixed, yields y = cx, a straight-line special case. When this is the true model, fitting the original two-parameter model leads to very unstable and individually meaningless estimates of a and b. Such embedded models a
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Newman, Mark. Network search. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198805090.003.0018.

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This chapter gives a discussion of search processes on networks. It begins with a discussion of web search, including crawlers and web ranking algorithms such as PageRank. Search in distributed databases such as peer-to-peer networks is also discussed, including simple breadth-first search style algorithms and more advanced “supernode” approaches. Finally, network navigation is discussed at some length, motivated by consideration of Milgram's letter passing experiment. Kleinberg's variant of the small-world model is introduced and it is shown that efficient navigation is possible only for cert
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Cheng, Russell. Standard Asymptotic Theory. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198505044.003.0003.

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This book relies on maximum likelihood (ML) estimation of parameters. Asymptotic theory assumes regularity conditions hold when the ML estimator is consistent. Typically an additional third derivative condition is assumed to ensure that the ML estimator is also asymptotically normally distributed. Standard asymptotic results that then hold are summarized in this chapter; for example, the asymptotic variance of the ML estimator is then given by the Fisher information formula, and the log-likelihood ratio, the Wald and the score statistics for testing the statistical significance of parameter es
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Chance, Kelly, and Randall V. Martin. Data Fitting. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780199662104.003.0011.

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This chapter explores several of the most common and useful approaches to atmospheric data fitting as well as the process of using air mass factors to produce vertical atmospheric column abundances from line-of-sight slant columns determined by data fitting. An atmospheric spectrum or other type of atmospheric sounding is usually fitted to a parameterized physical model by minimizing a cost function, usually chi-squared. Linear fitting, when the model of the measurements is linear in the model parameters is described, followed by the more common nonlinear fitting case. For nonlinear fitting, t
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Zydroń, Tymoteusz. Wpływ systemów korzeniowych wybranych gatunków drzew na przyrost wytrzymałości gruntu na ścinanie. Publishing House of the University of Agriculture in Krakow, 2019. http://dx.doi.org/10.15576/978-83-66602-46-5.

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The aim of the paper was to determine the influence of root systems of chosen tree species found in the Polish Flysch Carpathians on the increase of soil shear strength (root cohesion) in terms of slope stability. The paper's goal was achieved through comprehensive tests on root systems of eight relatively common in the Polish Flysch Carpathians tree species. The tests that were carried out included field work, laboratory work and analytical calculations. As part of the field work, the root area ratio (A IA) of the roots was determined using the method of profiling the walls of the trench at a
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Book chapters on the topic "Distributed parameters line model"

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Mizuno, Jun, Tatsuya Watanabe, Kazuya Ueki, Kazuyuki Amano, Eiji Takimoto, and Akira Maruoka. "On-line Estimation of Hidden Markov Model Parameters." In Discovery Science. Springer Berlin Heidelberg, 2000. http://dx.doi.org/10.1007/3-540-44418-1_13.

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Codina, E., and J. Barceló. "A System Optimal Traffic Assignment Model with Distributed Parameters." In Advanced Methods in Transportation Analysis. Springer Berlin Heidelberg, 1996. http://dx.doi.org/10.1007/978-3-642-85256-5_13.

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Vytovtov, K. A., E. A. Barabanova, V. M. Vishnevsky, and I. Yu Kvyatkovskaya. "The Analytical Model of Six-Dimensional Linear Dynamic Systems with Arbitrary Piecewise-Constant Parameters." In Distributed Computer and Communication Networks. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-66471-8_47.

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Hou, LinYuan, and Yicheng Li. "Distributed Formation Control Based on Linear Model for Power-Line Inspection Robots." In Lecture Notes in Electrical Engineering. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-6847-3_63.

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Sun, Jinping, Yong Liang, Qin Yan, and Chengming Zhang. "Study on the Parameters’ Acquisition Method of Distributed Hydrological Model Based on RS." In Computer and Computing Technologies in Agriculture IV. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-18354-6_54.

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Ibrahim, A. L., A. Md. Said, K. Nisar, Peer Azmat Shah, and Abubakar Aminu Mu’azu. "A Distributed Model to Analyzed QoS Parameters Performance Improvement for Fixed WiMAX Networks." In Lecture Notes in Electrical Engineering. Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41674-3_99.

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Thomas, Bastien, and Ocan Sankur. "PyLTA: A Verification Tool for Parameterized Distributed Algorithms." In Tools and Algorithms for the Construction and Analysis of Systems. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-30820-8_4.

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AbstractWe present the tool PyLTA, which can model check parameterized distributed algorithms against LTL specifications. The parameters typically include the number of processes and a bound on faulty processes, and the considered algorithms are round-based and either synchronous or asynchronous.
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Tollefsen, Dag, Michael J. Wilmut, and Ross Chapman. "Inversions of horizontal and vertical line array data for the estimation of geoacoustic model parameters." In Acoustic Sensing Techniques for the Shallow Water Environment. Springer Netherlands, 2006. http://dx.doi.org/10.1007/978-1-4020-4386-4_24.

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Kumar, Manoj, Aritra Das, and C. C. Reddy. "Estimation of the Impedance of a Distributed Model of a Transmission Line Under a Frequency Sweep." In Lecture Notes in Electrical Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-0337-1_24.

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Hahn, Ernst Moritz, Mateo Perez, Sven Schewe, Fabio Somenzi, Ashutosh Trivedi, and Dominik Wojtczak. "Mungojerrie: Linear-Time Objectives in Model-Free Reinforcement Learning." In Tools and Algorithms for the Construction and Analysis of Systems. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-30823-9_27.

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AbstractMungojerrie is an extensible tool that provides a framework to translate linear-time objectives into reward for reinforcement learning (RL). The tool provides convergent RL algorithms for stochastic games, reference implementations of existing reward translations for $$\omega $$ ω -regular objectives, and an internal probabilistic model checker for $$\omega $$ ω -regular objectives. This functionality is modular and operates on shared data structures, which enables fast development of new translation techniques. Mungojerrie supports finite models specified in PRISM and $$\omega $$ ω -a
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Conference papers on the topic "Distributed parameters line model"

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Li, Ximing, and H. Castaneda. "Influence of Soil Parameters on Coating Damage Evolution of X52 Pipeline Steel under Cathodic Protection Conditions." In CORROSION 2014. NACE International, 2014. https://doi.org/10.5006/c2014-4087.

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Abstract In this study, the influence of soil parameters on coating and metallic substrate damage evolution has been characterized by electrochemical impedance spectroscopy (EIS). Intact and defective coating conditions have been simulated to study the damage transformation of a coal tar coating of a pipeline both in the real soil environment and in an NS4 soil simulation solution. Quantitative estimation of coating on a steel X52 pipe under cathodic protection (CP) conditions has been performed by using the transmission line model (TLM). The results show that a compact soil layer can be forme
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Boteler, D. H. "Assessing Pipeline Vulnerability to Telluric Currents." In CORROSION 2007. NACE International, 2007. https://doi.org/10.5006/c2007-07686.

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Abstract Telluric currents produce variations in pipe-to-soil potential (PSP) that take the pipeline outside the voltage range for cathodic protection and interfere with potential surveys. The size of the PSP variation depends on a variety of factors related both to the natural environment and the characteristics of the pipeline itself. This paper presents a methodology for assessing how different pipeline features influence the vulnerability of the pipeline to telluric effects. Derivation of the distributed-source transmission line (DSTL) equations for induction in a pipeline show that the cr
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Sarto, M. S. "A Nonlinear Distributed Parameter Model for the Transient Analysis of Surge Arresters in Power Lines." In 1994_EMC-Europe_Roma. IEEE, 1994. https://doi.org/10.23919/emc.1994.10777653.

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Trichtchenko, L. "Assessment of Telluric Activity in the Area of the Proposed Alaska Highway Pipeline." In CORROSION 2012. NACE International, 2012. https://doi.org/10.5006/c2012-01192.

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Abstract The geomagnetic field fluctuations are accompanied by the geo-electric (telluric) field and telluric currents at the surface of the Earth and in the pipelines. These telluric currents disturb pipeline cathodic protection levels, creating pipe-to-soil potential (PSP) fluctuations with different amplitudes. Amplitudes of PSP fluctuations directly depend on the telluric activity in the area of the pipeline location. To estimate the amplitudes of PSP variations due to telluric activity, pipeline circuit model based on Distributed Source Transmission Line Theory can be applied. The unknown
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Jiao, Xiangqing, and Yuan Liao. "A linear estimator for transmission line parameters based on distributed parameter line model." In 2017 IEEE Power and Energy Conference at Illinois (PECI). IEEE, 2017. http://dx.doi.org/10.1109/peci.2017.7935724.

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Wang, LiangYi, Li Chen, Qian He, Shan Tan, YanJing Yang, and LiJuan Jiang. "Identification of Transmission Line Parameters Based on Improved Distributed Parameter Model andNSGA II." In 2022 IEEE 5th Advanced Information Management, Communicates, Electronic and Automation Control Conference (IMCEC). IEEE, 2022. http://dx.doi.org/10.1109/imcec55388.2022.10019797.

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Luo, Jian, Kaidi Zhang, Tao Chen, Guofu Zhao, Peng Wang, and Shuhui Feng. "Distributed parameter circuit model for transmission line." In 2011 IEEE International Conference on Advanced Power System Automation and Protection (APAP). IEEE, 2011. http://dx.doi.org/10.1109/apap.2011.6180607.

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Cecchi, Valentina, Matthew Knudson, Karen Miu, and Chika Nwankpa. "A non-uniformly distributed parameter transmission line model." In 2012 North American Power Symposium (NAPS 2012). IEEE, 2012. http://dx.doi.org/10.1109/naps.2012.6336406.

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Shishlakov, D. V., and V. I. Goncharova. "MATHEMATICAL MODEL OF A LINK WITH DISTRIBUTED PARAMETERS." In ZAVALISHENSKY READING’20. St. Petersburg State University of Aerospace Instrumentation, 2020. http://dx.doi.org/10.31799/978-5-8088-1446-2-2020-15-170-174.

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Panov, V. "Distributed Network System for Real-Time Model Based Control of Industrial Gas Turbines." In ASME 2011 Turbo Expo: Turbine Technical Conference and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/gt2011-45298.

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This paper describes the development of a distributed network system for real-time model based control of industrial gas turbine engines. Distributed control systems contribute toward improvements in performance, testability, control system maintainability and overall life-cycle cost. The goal of this programme was to offer a modular platform for improved model based control system. Hence, another important aspect of this programme was real-time implementation of non-linear aero-thermal gas turbine models on a dedicated hardware platform. Two typical applications of real-time engine models, na
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Reports on the topic "Distributed parameters line model"

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Daniel. L52353 Materials Selection, Welding and Weld Monitoring - Optimized Welding Solutions for X100 Line Pipe. Pipeline Research Council International, Inc. (PRCI), 2012. http://dx.doi.org/10.55274/r0010650.

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Two rounds of pipe welding were completed to understand the influence of the welding parameters on the weld metal and HAZ properties and microstructure. Thermal data was also obtained from these welds. This information was used to refine the thermal microstructural model with predictive capabilities. Essential welding variables were validated on flat plate experiments and recommendations for welding process control established. Ultimately, these recommendations were evaluated by pipeline welding contractors to assess its viability for field application.
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Parkins and Leis. L51654 Spatial Densities of Stress-Corrosion Cracks in Line-Pipe Steels. Pipeline Research Council International, Inc. (PRCI), 1992. http://dx.doi.org/10.55274/r0010367.

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There was a need to define the spatial density of stress-corrosion crack arrays that develop in operating gas-transmission pipelines and in laboratory test specimens of line-pipe steel, to improve understanding of the factors that control the density and provide data to test models of pipeline cracking. Within the broad definition of crack density are included the locations, numbers, lengths, depths, and degree of linkage of cracks. An analysis has been conducted of location, numbers, lengths, depths, and degree of linkage of stress-corrosion crack colonies in samples from the field and from l
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Leis and Walsh. L51575 Mechanics-Based Analysis of SCC in a Carbonate-Bicarbonate Environment. Pipeline Research Council International, Inc. (PRCI), 1988. http://dx.doi.org/10.55274/r0010306.

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Stress-corrosion cracking (SCC) occurs occasionally in line-pipe steels. Reviews of this cracking indicate that the environment is carbonate-bicarbonate and that the cracking is primarily intergranular. Research sponsored by the PRCI Line Pipe Research Supervisory Committee (LPRSC) has over the years identified metallurgical and electrochemical parameters as playing a role in the process. This work has also argued the significance of strain rate and its relationship to the service loading, given that dissolution is indicated as the controlling mechanism. While much has been learned about the m
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He, Xihua. PR-015-113601-R02 Validation of Internal Corrosion Threat Models for Dry Natural Gas Pipelines. Pipeline Research Council International, Inc. (PRCI), 2015. http://dx.doi.org/10.55274/r0010914.

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This report documents the verification and validation (of the probabilistic models developed previously to predict internal corrosion (IC) threats in nominally dry natural gas pipelines. Model uncertainty quantification showed that "low temperature, high pressure" posed the greatest IC threat. To validate the model, actual measurements were compared to model-predicted wall loss. The comparison included information from an IC failure, investigated by the National Transportation Safety Board (NTSB), with in-line inspection (ILI) data sets from five pipeline operators. Two of the pipeline operato
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Narayanan, Badri, Thomas Hertel, and Mark Horridge. Linking Partial and General Equilibrium Models: A GTAP Application Using TASTE. GTAP Technical Paper, 2010. http://dx.doi.org/10.21642/gtap.tp29.

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CGE models are utilized for the evaluation of trade policy reforms, yet they are typically highly aggregated, limiting their usefulness to trade negotiators interested in impacts at the tariff line. Partial Equilibrium (PE) models used for disaggregate analysis lack the benefits of an economy-wide analysis required to examine the overall impact of trade policy reforms. This suggests the need for a PE-GE, nested modeling framework to support trade policy analysis. In this paper, we develop a PE model that captures international trade, domestic consumption and output, using CET and CES structure
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Jacobs, Timothy, and Jacob Hedrick. PR-457-14201-R03 Variable NG Composition Effects in LB 2S Compressor Engines - Prediction Enhancement. Pipeline Research Council International, Inc. (PRCI), 2017. http://dx.doi.org/10.55274/r0011406.

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Phase II of the project has focused on improving the initial analysis performed in the first phase by enhancing the various aspects of predictive combustion for lean burn spark ignition natural gas engines under variable composition fueling. These enhancements have incorporated validation data from a Cooper-Bessemer GMVH-10C3 engine located in New Jersey, which improves upon the lack of field data to bound the scope of composition variation. In simulation related endeavors, effort was made to improve the fundamental combustion physics related parameters, namely laminar flame speed, by developi
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Narayanan, Badri, Thomas Hertel, and Mark Horridge. Disaggregated Data and Trade Policy Analysis: The Value of Linking Partial and General Equilibrium Models. GTAP Working Paper, 2009. http://dx.doi.org/10.21642/gtap.wp56.

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Computable General Equilibrium (CGE) models are now routinely utilized for the evaluation of trade policy reforms, yet they are typically quite highly aggregated, which limits their usefulness to trade negotiators who are often interested in impacts at the tariff line. On the other hand, Partial Equilibrium (PE) models, which are typically used for analysis at disaggregate levels, deprive the researcher of the benefits of an economy-wide analysis, which is required to examine the overall impact of broad-based trade policy reforms. Therefore, a PE-GE, nested modeling framework has the prospect
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Engel, Bernard, Yael Edan, James Simon, Hanoch Pasternak, and Shimon Edelman. Neural Networks for Quality Sorting of Agricultural Produce. United States Department of Agriculture, 1996. http://dx.doi.org/10.32747/1996.7613033.bard.

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The objectives of this project were to develop procedures and models, based on neural networks, for quality sorting of agricultural produce. Two research teams, one in Purdue University and the other in Israel, coordinated their research efforts on different aspects of each objective utilizing both melons and tomatoes as case studies. At Purdue: An expert system was developed to measure variances in human grading. Data were acquired from eight sensors: vision, two firmness sensors (destructive and nondestructive), chlorophyll from fluorescence, color sensor, electronic sniffer for odor detecti
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Wright, Louise, and Louise Crocker. PR-670-183826-R03 Extended Evaluation of LSM-Magnetostrictive Pipe Models. Pipeline Research Council International, Inc. (PRCI), 2021. http://dx.doi.org/10.55274/r0012097.

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Integrity assessment of pipelines is vital to ensure that oil and gas pipes have adequate strength to prevent leaks and ruptures. Regular inspections are conducted to confirm safe operation conditions of pipelines. The industry's principal method for assessing pipelines is in-line inspection (ILI), involving the passing of a device along the inside of a pipe to assess the condition of the pipeline. ILI devices can be fitted with a number of sensors allowing various measurement parameters to be obtained simultaneously. Not all pipelines are suited to ILI for reasons such as small diameter, obst
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George and Hawley. PR-015-09605-R01 Extended Low Flow Range Metering. Pipeline Research Council International, Inc. (PRCI), 2010. http://dx.doi.org/10.55274/r0010728.

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Natural gas meters are often used to measure flows below their minimum design flow rate. This can occur because of inaccurate flow projections, widely varying flow rates in the line, a lack of personnel available to change orifice plates, and other causes. The use of meters outside their design ranges can result in significant measurement errors. The objectives of this project were to examine parameters that contribute to measurement error at flow rates below 10% of a meters capacity, determine the expected range of error at these flow rates, and establish methods to reduce measurement error i
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