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Journal articles on the topic 'Simulation transitoire'

Author: Grafiati

Published: 25 May 2024

Last updated: 31 July 2025

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1

Mnasri, Aida, and Ezzeddine Hadj Taieb. "Simulation numérique par éléments finis des écoulements transitoires à surface libre." La Houille Blanche, no. 5-6 (December 2019): 81–92. http://dx.doi.org/10.1051/lhb/2019032.

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Une simulation numérique par des éléments finis des écoulements transitoires à surface libre dans les canaux prismatiques est présentée. Dans cette étude, l'écoulement est supposé unidirectionnel dans un canal de faible pente. Le modèle mathématique est constitué d'un système de deux équations aux dérivées partielles de type hyperbolique résolu numériquement par la méthode des éléments finis. Pour définir les fonctions d'interpolation dans la forme intégrale des résidus pondérés, la méthode de Galerkin a été utilisée. Dans les applications, différentes sections prismatiques sont examinées. Les

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2

-Baggio, Jacques. "Simulation de la réponse transitoire d'une diode laser à une impulsion ionisante." Revue de l'Electricité et de l'Electronique -, no. 04 (1997): 71. http://dx.doi.org/10.3845/ree.1997.050.

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3

Dassargues, A., A. Monjoie, J. Lambert, and A. Pierlot. "Etude régionale par éléments finis d'une nappe libre située dans les craies du crétacé en Belgique." Revue des sciences de l'eau 4, no. 1 (2005): 39–63. http://dx.doi.org/10.7202/705089ar.

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La nappe aquifère de Hesbaye située au Nord-Ouest de Liège (Belgique) est logée dans les craies du Crétacé, surmontées d'une épaisse couche de limon. L'alimentation en eau de la région est assurée par les 60 000 m3 extraits Joumel!ement des galeries captantes et des puits. Un modèle mathématique par éléments finis a été construit pour simuler numériquement le comportement de l'aquifère en régime transitoire. La complexité de la géologie locale a nécessité l'emploi d'une méthode par éléments finis permettant une discrétisatlon 30 souple et détaillée de la zone étudiée, modélisation réalisée ave

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4

Jarrier, Laurent, and Dominique Gentile. "Simulation du comportement thermique transitoire d'un moteur à combustion interne et à allumage commandé." Revue Générale de Thermique 36, no. 7 (1997): 520–33. http://dx.doi.org/10.1016/s0035-3159(97)84035-4.

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5

Chevreuil, Mathilde, Pierre Ladevèze, and Philippe Rouch. "Une stratégie de calcul en dynamique transitoire recouvrant les basses et moyennes fréquences." European Journal of Computational Mechanics 15, no. 1-3 (2006): 119–30. http://dx.doi.org/10.3166/remn.15.119-130.

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6

Feuillat, François, Jean-René Perrin, René Keller, et al. "Simulation expérimentale de « l'expérience tonneau ». Mesure des cinétiques d'imprégnation du liquide dans le bois et d'évaporation de surface." OENO One 28, no. 3 (1994): 227. http://dx.doi.org/10.20870/oeno-one.1994.28.3.1140.

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<p style="text-align: justify;">Un modèle expérimental miniaturisé a été conçu dans le but de simuler "l'interface tonneau". Les cinétiques de l'imprégnation du liquide dans le bois et de l'évaporation de surface ont été mesurées en conditions de cave (15°C ; 90 p. cent HR) pendant 200 jours sur des petits disques à orientation tangentielle (Ø 63 mm; épaisseur 9 mm) à l'aide d'une méthodologie spécifique. Ces résultats expérimentaux ont été obtenus sur 4 espèces traditionnellement employées en tonnellerie (<em>Quercus</em> <em>robur </em>L., <em>Q. petraea&l

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El Khamal, Youssef, Ait Said Brahim, Hachem Aziz, Rabia El Fakir, El Mostafa Mili, and Radouan Mehdaoui. "Modélisation de l’écoulement des eaux souterraines de l’aquifères quaternaire des palmeraies de Figuig et des plaines de Tisserfine, El Arja (Haut Atlas Oriental, Maroc)." European Scientific Journal, ESJ 18, no. 24 (2022): 108. http://dx.doi.org/10.19044/esj.2022.v18n24p108.

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Le présent travail a pour objectif la modélisation hydrodynamique de la nappe Quaternaire de Figuig ; généralement la nappe circule dans des alluvions limoneuses et des calcaires travertineux du Quaternaire avec un substratum imperméable constitué des marnes du Jurassique. La zone d’étude est caractérisée par un climat désertique. La modélisation hydrogéologique a été mise en œuvre par le logiciel MODFLOW. La nappe a été simulée en régime permanent et transitoire ; elle résout l’équation gouvernante de l’écoulement des eaux souterraines en milieux poreux continus et elle calcule la charge hydr

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8

Chebbah, Lynda, Lakhdar Djemili, Mohammed Tawfik Bouziane, and Mohamed Chiblak. "Modélisation d'un masque en béton bitumineux (brut et protégé) sous sollicitations thermiques en régime transitoire. cas du masque de barrage Ghrib (Ain Defla, Algérie)." La Houille Blanche, no. 1 (February 2020): 42–49. http://dx.doi.org/10.1051/lhb/2019064.

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Le masque en béton bitumineux est l'un des organes les plus utilisés pour l'étanchéité des barrages en remblai. Le parement en béton bitumineux est, en particulier dans le cas des installations de stockage par pompage hydroélectriques, sont souvent très exposé à des fluctuations importantes de température, qui sont causées par la radiation solaire, la variation du niveau d'eau dans le réservoir, par le gel dans la saison d'hiver, ainsi que la vitesse et la direction du vent, sans oublier les précipitations. Pour mieux expliquer le phénomène de transfert de chaleur, il est nécessaire de connaît

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9

Agoua, Eusèbe, Sylvain Zohoun, and Patrick Perré. "Utilisation d'une double enceinte pour déterminer le coefficient de diffusion d'eau liée dans le bois en régime transitoire: recours à la simulation numérique pour valider la méthode d'identification." International Journal of Heat and Mass Transfer 44, no. 19 (2001): 3731–44. http://dx.doi.org/10.1016/s0017-9310(01)00022-9.

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10

LUCA, DORIN, NARCIS N. POPESCU, and DORIAN D. LUCA. "Simulation of magnetic transitory parameters at electromagnetic forming of metal sheet." Journal of Engineering Sciences and Innovation 5, no. 4 (2020): 363–70. http://dx.doi.org/10.56958/jesi.2020.5.4.7.

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Proposed and accomplished finite element simulations in this paper started from the idea that materials which are plastically deformed and those from which electromagnetic deformation devices are built can influence the development of transitory magnetic phenomenon during the working process. Workpieces from paramagnetic, diamagnetic and ferromagnetic materials and devices that contain metallic and non-metallic materials were taken into study. FLUX2D modelling and simulating software was used to achieve numerical values and graphical images for the main process parameters: magnetic induction a

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11

MAISSE, G., F. BONNIEUX, B. FAUCONNEAU, et al. "Impacts zootechnique et socio-économique potentiels d’une éventuelle utilisation de la rtGH en salmoniculture." INRAE Productions Animales 6, no. 3 (1993): 167–83. http://dx.doi.org/10.20870/productions-animales.1993.6.3.4197.

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Les salmonidés (Truite et Saumon) sont la principale production piscicole de l’Europe de l’ouest. Les biotechnologies animales intéressant la salmoniculture relèvent de trois domaines : les manipulations génétiques (la triploïdie pour la production de poissons stériles), le transfert de gène (pour produire des poissons résistants aux maladies infectieuses) et les peptides recombinants (vaccins recombinants contre les maladies virales, l’hormone de croissance recombinante de truite -rtGH-). La rtGH a deux effets biologiques principaux : une stimulation de la croissance, en particulier en eau fr

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12

Mosovsky, B. A., and J. D. Meiss. "Transport in Transitory Dynamical Systems." SIAM Journal on Applied Dynamical Systems 10, no. 1 (2011): 35–65. http://dx.doi.org/10.1137/100794110.

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13

Petiot, Alain, and Thierry Favre. "Tool Thermal Behavior in SPF Environment." Materials Science Forum 551-552 (July 2007): 111–22. http://dx.doi.org/10.4028/www.scientific.net/msf.551-552.111.

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During a superplastic cycle and part loading/unloading operations, a superplastic tool withstands thermal cycles which affect its life-time, the superplastic cycle time and hence the productivity of the press. A thermal simulation of the tool behavior in superplastic conditions helps to understand which actions could reduce the effects of heat-shields opening/closing and of part loading/unloading on the cooling of the tool and on the heating of the part. Temperature measurements in transitory conditions and in steady-state have been collected on a tool of large dimensions in superplastic condi

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14

Monzón-Verona, José Miguel, Pablo Ignacio González-Domínguez, Santiago García-Alonso, Francisco Jorge Santana-Martín, and Juan Francisco Cárdenes-Martín. "Thermal Analysis of a Magnetic Brake Using Infrared Techniques and 3D Cell Method with a New Convective Constitutive Matrix." Sensors 19, no. 9 (2019): 2028. http://dx.doi.org/10.3390/s19092028.

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In this work we analyse the temperature distribution in a conductor disk in transitory regime. The disk is in motion in a stationary magnetic field generated by a permanent magnet and so, the electric currents induced inside it generate heat. The system acts as a magnetic brake and is analysed using infrared sensor techniques. In addition, for the simulation and analysis of the magnetic brake, a new thermal convective matrix for the 3D Cell Method (CM) is proposed. The results of the simulation have been verified by comparing the numerical results with those obtained by the Finite Element Meth

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15

SOLOFO, Andrianjakaniaina Basilide, Tsirobaka RABE, Max Richard ANDRIANANTENAINA, and Nirinarison Jean RAFZAINJAKA. "Transitory Stability Analysis for a System Composed of Asynchronous and Synchronous Generators Connected to a SMIB." International Journal of Innovative Science and Research Technology 7, no. 3 (2022): 366–72. https://doi.org/10.5281/zenodo.6386624.

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In this article, we studied the transient stability for a system composed asynchronous generators and synchronous connecting to a power network infinite using the method of Lyapunov. The idea is researching the possibility of using the Hamiltonian energy function as a Lyapunov function one by one for our generators. After having verified the three criteria of Lyapunov's method, we have the possibility for using Hamiltonian energy as a Lyapunov function. According to the results of the simulations on matlab software plus these three criteria, we could affirm that the two machines as well as

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16

Kerger, François, Pierre Archambeau, Sebastien Erpicum, Benjamin J. Dewals, and Michel Pirotton. "Simulation numérique des écoulements mixtes hautement transitoires dans les conduites d'évacuation des eaux." La Houille Blanche, no. 5 (October 2009): 159–66. http://dx.doi.org/10.1051/lhb/2009069.

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17

DANIS, MICHEL, and MICHEL QUINTARD. "Simulation numérique du comportement d'une nappe aquifère captive: estimation directe des processus transitoires." Hydrological Sciences Journal 32, no. 1 (1987): 105–11. http://dx.doi.org/10.1080/02626668709491165.

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18

Zhang, Peijian, Sheng Qiu, Kunfeng Zhu, and Wensuo Chen. "Novel Low-Loss Reverse-Conducting Insulated-Gate Bipolar Transitor with Collector-Side Injection-Enhanced Structure." Electronics 13, no. 1 (2023): 23. http://dx.doi.org/10.3390/electronics13010023.

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In this paper, a new concept of low-loss Reverse-Conducting Insulated-Gate Bipolar Transistor with Collector-side Injection-Enhanced structure (RC-IGBT-CIE) is proposed and investigated using simulations. In reverse conduction (the on state of the diode mode), the CIE structure enhances the collector-side carrier concentration of the proposed RC-IGBT-CIE, which results in low reverse-conducting voltage (VF). The low reverse recovery loss and low turn-on loss using an inductive load circuit are obtained by using the modified carrier concentration profile resulted from both the CIE effect and th

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19

Gomez, Ivan, Andrés Gonzalez-Mancera, Brittany Newell, and Jose Garcia-Bravo. "Analysis of the Design of a Poppet Valve by Transitory Simulation." Energies 12, no. 5 (2019): 889. http://dx.doi.org/10.3390/en12050889.

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This article contains the results and analysis of the dynamic behavior of a poppet valve through CFD simulation. A computational model based on the finite volume method was developed to characterize the flow at the interior of the valve while it is moving. The model was validated using published data from the valve manufacturer. This data was in accordance with the experimental model. The model was used to predict the behavior of the device as it is operated at high frequencies. Non-dimensional parameters for generalizing and analyzing the effects of the properties of the fluid were used. It w

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20

Le, Minh Hoang, and Hien Sy Dinh. "Some physical results of single electron transitor." Science and Technology Development Journal - Natural Sciences 1, no. 6 (2018): 206–13. http://dx.doi.org/10.32508/stdjns.v1i6.631.

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Single electron transistor (SET) is a key element in current research area of nanoelectronics and nanotechnology which can offer nano-feature size, low power consumption and high operating speed. SET is a new nanoscale switching device. It can control the motion of the single electron. The goal of this paper is to discuss about some physical properties of the SET and focuses on simulation of basic quantum device characteristics such as tunneling effect, Coulomb blockage, Quantum dot, Coulomb staircase, and Coulomb oscillation. The current-voltage characteristics of SET are explored for illustr

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21

Commault, Jeanne. "Does Consumption Respond to Transitory Shocks? Reconciling Natural Experiments and Semistructural Methods." American Economic Journal: Macroeconomics 14, no. 2 (2022): 96–122. http://dx.doi.org/10.1257/mac.20190296.

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Studies based on natural experiments find that consumption responds strongly and significantly to a transitory variation in income, while semistructural estimations find no pass-through of transitory shocks to consumption. I develop a more robust semistructural estimator that relaxes the assumption that log consumption is a random walk. The robust pass-through estimate is significant and large, implying a yearly marginal propensity to consume of 0.32, close to the natural experiment findings. The robust estimator performs well in numerical simulations of a life cycle model, while nonrobust est

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22

Chessé, Pascal, Xavier Tauzia, Jean-François Hetet, and Gérald Grosshans. "Simulation des phases de fonctionnement transitoires d'un moteur diesel semi-rapide à suralimentation séquentielle." Comptes Rendus de l'Académie des Sciences - Series IIB - Mechanics-Physics-Astronomy 328, no. 3 (2000): 193–98. http://dx.doi.org/10.1016/s1287-4620(00)00122-8.

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23

Wang, Chenguang. "Transitory speech parts recognition." Speech Communication 7, no. 1 (1988): 98. http://dx.doi.org/10.1016/0167-6393(88)90026-x.

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24

Nastac, Silviu, Carmen Debeleac, and Cristian Simionescu. "Transitory Dynamics Evaluation inside Driving System of Demolition-Cutting Technological Equipment due to Variable Tool-Material Interactions." Applied Mechanics and Materials 811 (November 2015): 50–56. http://dx.doi.org/10.4028/www.scientific.net/amm.811.50.

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Computational dynamics of technological equipments dealing with intensive, shock-like and various working regimes frames the area of this research paper. A widely used type of demolition-cutting equipment supplied by hydrostatical driving system was adopted, and ordinary scenarios of equipment exploitation have been proposed in order to dignify the very short but strong transitory states deeply depending on the material characteristics and the regime parameters. Elastic, dissipative and plastic components have been considered to compose the global characteristic of the processed material inter

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25

Olivo, Adrian, and Juan Toledo. "Electromagnetic model for the study of transitory phenomena associated with atmospheric discharges on transmission lines." ATH 2, no. 5 (2021): 5–28. http://dx.doi.org/10.47460/athenea.v2i5.22.

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The analysis of a research work developed in the company C.V.G CARBONORCA of Venezuela is presented, which has two gas purification plants for the cooking area, designed to purify the gas that comes from the cooking ovens. Each plant is made up of solenoid valves, pneumatic valves, transmitters, process mimic panel and a supervisory system. All these elements are governed by a SIEMENS S5-115U PLC which is in a state of obsolescence, which is why the replacement of these automata by ALLEN BRADLEY ContolLogix automata was designed, in order to guarantee continuity in operations in plant. The res

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26

Delessy, Henri, Frédéric Lerais, Sébastien Paris-Horvitz, and Henri Sterdyniak. "Après Maastrich : quelles politiques économiques en Europe ?" Revue de l'OFCE 43, no. 1 (1993): 273–305. http://dx.doi.org/10.3917/reof.p1993.43n1.0273.

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Résumé Le Traité de Maastricht pose avec acuité le problème de l'organisation de la politique économique en Europe, tant en ce qui concerne la phase de transition, qu'en ce qui concerne le fonctionnement d'une zone à monnaie unique. Sur le fond, deux points de vue s'opposent : pour les uns, la construction de l'Europe doit permettre la renaissance d'une politique économique active tournée vers la croissance. Pour les autres, au contraire, l'Europe doit être libérale. Les accords de Maastricht optent très clairement pour une politique économique « vertueuse », notamment en adoptant des critères

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27

Lotzmann, Ulf, Michael Möhring, and Klaus G. Troitzsch. "Simulating Normative Agents." International Journal of Agent Technologies and Systems 2, no. 1 (2010): 31–49. http://dx.doi.org/10.4018/jats.2010120103.

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The article discusses the sociological background and the general features of a new simulation toolbox, which was explicitly designed to describe, design and simulate multi-agent systems whose component agents are endowed with the capability to exchange norm invocations and to internalize norms, to develop codes of norms and to change them. This toolbox takes into account that normative behavior can only originate in the interpretation of norm invocations and the deliberate decision to abide by the emerging norms—otherwise what emerges is only a transitory regularity. Agents designed with the

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28

Moisan, Noël, Jean-Marie Floc’h, and Jacques Citerne. "Simulation des régimes transitoires sur des sections de lignes microruban par une technique de filtrage numérique." Annales des Télécommunications 41, no. 9-10 (1986): 511–18. http://dx.doi.org/10.1007/bf02998754.

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29

Triki, Ali, and Ezzeddine Hadj Taïeb. "Simulation numerique des écoulements transitoires à surface libre provoqués par la superposition de manœuvres de vannes." La Houille Blanche, no. 3 (July 2010): 71–80. http://dx.doi.org/10.1051/lhb/2010037.

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30

del Amo Sancho, Alejandro. "Solar Trigeneration: a Transitory Simulation of HVAC Systems Using Different Typologies of Hybrid Panels." Journal of Sustainable Development of Energy, Water and Environment Systems 2, no. 1 (2014): 1–14. http://dx.doi.org/10.13044/j.sdewes.2014.02.0001.

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31

Benjumea, J. M., J. Sánchez-Oneto, J. R. Portela, F. J. Jiménez-Espadafor, and E. J. Martínez de la Ossa. "Simulation of supercritical water oxidation reactor in transitory state: Application to time-dependent processes." Journal of Supercritical Fluids 117 (November 2016): 219–29. http://dx.doi.org/10.1016/j.supflu.2016.06.021.

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32

Haj Kacem, Yassine, and Ezzedine Hadj-Taieb. "Simulation numérique par éléments finis des écoulements transitoires gaz-liquide dans les conduites rigides et quasi-rigides." La Houille Blanche, no. 5 (October 2017): 69–78. http://dx.doi.org/10.1051/lhb/2017047.

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33

Reyes Caro, María Camila, Paula Alejandra Córdoba Narváez, and Edwin Rivas Trujillo. "Análisis de estabilidad transitoria y de pequeña señal en un sistema multimáquina: caso de estudio." Revista vínculos 15, no. 2 (2018): 129–38. http://dx.doi.org/10.14483/2322939x.13685.

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En este artículo se presenta el análisis de estabilidad transitoria y de pequeña señal para un sistema multimáquina. Se parte de los datos de la red propuesta por El-Abiad y Nagappan y los resultados del estudio de estabilidad transitoria obtenidos mediante el segundo método de Lyapunov, los cuales se comparan con la respuesta del sistema en DIgSILENT PowerFactory 15.1; se ejecuta la función RMS/EMS simulation que permite definir las curvas t-δ, perfiles de velocidad, tensión y frecuencia. Adicionalmente, se incluye el estudio de pequeña señal con la función modal analysis que tiene el fin de

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34

Rubio-Arellano, Ana B., Jose A. Ramos-Leal, Víctor M. Vázquez-Báez, and José I. Rodriguez Mora. "Modeling the Groundwater Dynamics of the Celaya Valley Aquifer." Water 15, no. 1 (2022): 1. http://dx.doi.org/10.3390/w15010001.

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We propose a hydrodynamic simulation model to understand the piezometric operation of the Celaya Valley aquifer. The aquifer is located at the east of Guanajuato State in México. Our proposed model reproduces, under transitory conditions, the performance of the aquifer during the dry season from year 2015 to 2019 and the rainy season from year 2010 to 2015. The simulation was projected for the two seasons up to eleven years ahead and considering only three simulation scenarios (one should bear in mind that there are a number of different and interesting scenarios): trend, pump reduction and pu

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35

McCulloch, Neil, and Bob Baulch. "Simulating the impact of policy upon chronic and transitory poverty in rural Pakistan." Journal of Development Studies 36, no. 6 (2000): 100–130. http://dx.doi.org/10.1080/00220380008422656.

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36

Bruzzone, Luca, Pietro Fanghella, and Mario Baggetta. "Experimental Assessment of Fractional-Order PDD1/2 Control of a Brushless DC Motor with Inertial Load." Actuators 9, no. 1 (2020): 13. http://dx.doi.org/10.3390/act9010013.

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The application of Fractional Calculus to control mechatronic devices is a promising research area. The most common approach to Fractional-Order (FO) control design is the PIλDµ scheme, which adopts integrals and derivatives of non-integer order λ and µ. A different possible approach is to add FO terms to the PID control, instead of replacing integer order terms; for example, in the PDD1/2 scheme, the half-derivative term is added to the classical PD. In the present paper, by mainly focusing on the transitory behaviour, a comparison among PD, PDµ, and PDD1/2 control schemes is carried out, wit

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37

Baillet, L., V. Linck, S. D’Errico, B. Laulagnet, and Y. Berthier. "Finite Element Simulation of Dynamic Instabilities in Frictional Sliding Contact." Journal of Tribology 127, no. 3 (2005): 652–57. http://dx.doi.org/10.1115/1.1866160.

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This paper describes tools for numerical modeling which enable the understanding of the appearance of vibrations of a structure generated by the frictional contact between two bodies (the excitation source being friction). The dynamic finite element code PLASTD is used to reproduce transitory phenomena generated at the contact interface. This code includes contact and friction algorithms based upon a formulation which uses Lagrange multipliers. A numerical study of the dynamic response of a 2D mechanical model composed of a deformable body in relative translation and unilateral contact with Co

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A., Naraina, and R. Kunkolienkar G. "Improved Cat-Firefly Algorithm with Facts Controllers for Improvement of Voltage Profile in IEEE Modified 14 Bus Systems." Journal of Research and Advancement in Electrical Engineering 4, no. 1 (2021): 1–5. https://doi.org/10.5281/zenodo.4603522.

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<em>In recent years, there is much advancement in deregulated power market. It has become a desirable practice to reach advanced efficient power operation along with facilitated competitions among the power system market players. An acceptable and sustainable power delivery scheme is a key issue in healthy completion of power industry. Thus transmission network should satisfy all the required delivery schemes set by the power industry, but when there is sudden accession in loads connected to power network, the transmission system is revealed to transitory failures and instability issues. Conve

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Nowak, Stefan, Johannes Neidhart, Ivan G. Szendro, and Joachim Krug. "Multidimensional Epistasis and the Transitory Advantage of Sex." PLoS Computational Biology 10, no. 9 (2014): e1003836. http://dx.doi.org/10.1371/journal.pcbi.1003836.

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40

Cárdenas, María Luz. "Are the transitory enzyme-enzyme complexes found in vitro also transitory in vivo? If so, are they physiologically important?" Journal of Theoretical Biology 152, no. 1 (1991): 111–13. http://dx.doi.org/10.1016/s0022-5193(05)80522-3.

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41

Hernández-Pérez, Miguel Angel, Gustavo Delgado-Reyes, Vicente Borja-Jaimes, Jorge Salvador Valdez-Martínez, and Marisol Cervantes-Bobadilla. "An Adaptation of a Sliding Mode Classical Observer to a Fractional-Order Observer for Disturbance Reconstruction of a UAV Model: A Riemann–Liouville Fractional Calculus Approach." Mathematics 11, no. 24 (2023): 4876. http://dx.doi.org/10.3390/math11244876.

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This paper proposes a modification of a Sliding Mode Classical Observer (SMCO) to adapt it to the fractional approach. This adaptation involves using a set of definitions based on fractional calculus theory, particularly the approach developed by Riemann–Liouville, resulting in a Sliding Mode Fractional Observer (SMFO). Both observers are used to perform disturbance reconstruction considered additive in a Quadrotor Unmanned Aerial Vehicle (UAV) model. Then, this work presents the fractional-order sliding mode observer’s mathematical formulation and integration into the Quadrotor UAV model. To

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Prof., C. E. Morkhade1 Prof. V. A. Ghodeswar2 &. Prof. S. R. Sapkal3. "INVESTIGATION OF POWER QUALITY EVENTS IN DISTRIBUTION SYSTEM." GLOBAL JOURNAL OF ENGINEERING SCIENCE AND RESEARCHES [NC-Rase 18] (November 16, 2018): 68–72. https://doi.org/10.5281/zenodo.1489837.

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The investigation of power quality measures in power systems are important work in monitoring and security of power system network. Most of the power system turbulences are non-stationary and transitory in nature and new tools are being used currently for the analysis of power quality troubles. This paper presents a wavelet based feature abstraction method for the finding of power quality problem. The disturbance waveforms obtained from simulation are decomposed by (DWT) discrete wavelet transform. The energy distribution pattern of the distorted signals has been taken for feature abstraction.

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Tamene, Youcef, Said Abboudi, and Cherif Bougriou. "Simulation des transferts thermiques transitoires à travers un mur multicouche soumis à des conditions de flux solaire et de convection." Journal of Renewable Energies 12, no. 1 (2023): 117–24. http://dx.doi.org/10.54966/jreen.v12i1.125.

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On propose une étude numérique, par différences finies, du transfert de chaleur dans un mur multicouche (à deux ou trois couches) soumis à une condition de rayonnement solaire sur le côté extérieur et prenant en compte les échanges de chaleur par convection sur ses deux faces. L’exploitation du code numérique est développée sur des cas relatifs au problème posé dans l’habitat. Les résultats numériques sont présentés sur des exemples de matériaux utilisés dans le domaine du bâtiment dans des conditions réelles de fonctionnement (flux solaire, pertes convectives, etc…). On analyse également, l’i

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Amador, Molina Oscar, Ignacio Soto, Maria Calderon, and Manuel Urueña. "Experimental Evaluation of the ETSI DCC Adaptive Approach and Related Algorithms." IEEE Access 8 (March 12, 2020): 49798–811. https://doi.org/10.1109/ACCESS.2020.2980377.

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Decentralized Congestion Control (DCC) mechanisms have been a core part of protocol stacks for vehicular networks since their inception and standardization. The ETSI ITS-G5 protocol stack for vehicular communications considers the usage of DCC not only in the network or access layers, but also as a part of the cross-layer architecture that influences how often messages are generated and transmitted. ETSI DCC mechanisms have evolved from a reactive approach based on a finite state machine, to an adaptive approach that relies on a linear control algorithm. This linear control algorithm, called L

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Hwang, Sun Ho. "Analyzing Nonlinear Income Persistence of the Elderly." Korean Data Analysis Society 25, no. 4 (2023): 1351–62. http://dx.doi.org/10.37727/jkdas.2023.25.4.1351.

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This study estimates income risk observed among the elderly using the Korean Retirement and Income Study data. In order to decompose household income into permanent and transitory components, the quantile-based panel data framework is employed. The permanent component is assumed to follow a first-order Markov process, and the transitory component is assumed to be independent over time and also independent of the persistent components. I estimate the income persistence from the estimated permanent income component, and analyze the dynamic effects of permanent income shocks on income through sim

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Anghel, Dan Alexandru, Andreea Rodica Sterian, and Paul E. Sterian. "Modeling Quantum Well Lasers." Mathematical Problems in Engineering 2012 (2012): 1–11. http://dx.doi.org/10.1155/2012/736529.

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In semiconductor laser modeling, a good mathematical model gives near-reality results. Three methods of modeling solutions from the rate equations are presented and analyzed. A method based on the rate equations modeled in Simulink to describe quantum well lasers was presented. For different signal types like step function, saw tooth and sinus used as input, a good response of the used equations is obtained. Circuit model resulting from one of the rate equations models is presented and simulated in SPICE. Results show a good modeling behavior. Numerical simulation in MathCad gives satisfactory

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Sawadogo, Wenddabo Olivier, and Blaise Somé. "MATHEMATICAL MODELING AND NUMERICAL SIMULATION IN TRANSITORY MODE OF GROUNDWATER LEVEL IN THE PLAIN OF SOUROU (BURKINA FASO)." Far East Journal of Applied Mathematics 94, no. 1 (2016): 17–36. http://dx.doi.org/10.17654/am094010017.

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Tyszkowska-Kasprzak, Elżbieta. "Niepokój o wartości we współczesnej antyutopii rosyjskiej." Kultura Słowian Rocznik Komisji Kultury Słowian PAU 19 (December 22, 2023): 55–68. http://dx.doi.org/10.4467/25439561ksr.23.004.18981.

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Concerns for Values in the Contemporary Russian Anti-utopia Utopia as a literary genre gains popularity in transitory moments, periods of social, economic and mental transformations. Literary visions of the future can be treated as forecasts of the development of societies, or projections of dreams about a better tomorrow, but in the case of anti-utopias, these predictions are not optimistic and have their source in the reality contemporary to the author. The abundance of dystopias in the early 21st century testifies to writers’ concerns about the development of the country and society. The ma

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Fan, Hong Ming, Kai Yuan He, Zhi Fang Yin, and Dan Zhang. "Transient Numerical Simulation for Air Distribution of Air Conditioning and Ventilation in Subway Island-Platform." Advanced Materials Research 250-253 (May 2011): 3107–14. http://dx.doi.org/10.4028/www.scientific.net/amr.250-253.3107.

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The typical subway island-platform of Beijing as research object was present in the article. Taking two-equation turbulence model and giving boundary conditions of piston wind and train heat load change with the time, adopting numerical method simulates air distribution of air-conditioning and ventilation system in subway. The results indicate that piston wind effect has significant impact on the area of platform entrance and staircase entrance while station with safety doors can obstruct piston effect at a certain degree. Simultaneity, the supply- exhaust air system offers relatively uniform

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Hadriche, Abir, Ichrak Behy, Amal Necibi, Abdennaceur Kachouri, Chokri Ben Amar, and Nawel Jmail. "Assessment of Effective Network Connectivity among MEG None Contaminated Epileptic Transitory Events." Computational and Mathematical Methods in Medicine 2021 (December 28, 2021): 1–14. http://dx.doi.org/10.1155/2021/6406362.

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Characterizing epileptogenic zones EZ (sources responsible of excessive discharges) would assist a neurologist during epilepsy diagnosis. Locating efficiently these abnormal sources among magnetoencephalography (MEG) biomarker is obtained by several inverse problem techniques. These techniques present different assumptions and particular epileptic network connectivity. Here, we proposed to evaluate performances of distributed inverse problem in defining EZ. First, we applied an advanced technique based on Singular Value Decomposition (SVD) to recover only pure transitory activities (interictal

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