Relevant bibliographies by topics / PVC Oscillations / Dissertations / Theses
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Dissertations / Theses on the topic 'PVC Oscillations'

Author: Grafiati
Published: 6 September 2023

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1

Hegde, Bharati Krishna. "Mathematical modelling and analysis of calcium oscillations in excitable and non-excitable cell lines." Texas A&M University, 2004. http://hdl.handle.net/1969.1/300.

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Information is transmitted from the cell surface to various specific targets in the cell via several cellular signaling pathways. Cytosolic free calcium (Ca2+)is one of the most versatile and ubiquitous intracellular messengers since it is able to regulate diverse number of functions such as proliferation, secretion, fertilization, metabolism, learning and memory. In the last couple of years, evidence has been accumulating that Ca2+ ion is able to integrate information from multiple signaling pathways and convert this information into a code which regulates events ranging from contraction to m
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2

Wessén, Mikael. "Förbättrad manuell styrning av staplingskran." Thesis, Linköpings universitet, Reglerteknik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-118530.

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Detta examensarbete är utfört hos Swisslog under våren 2013. De hade problem med den manuella styrningen av deras pallstaplingskran för höglager, som upplevdes ryckig och svår att kontrollera vid låga hastigheter. Huvudsyftet var att undersöka varför detta fenomen uppstod och hur det kunde lösas med både hård- och mjukvarumässiga metoder. Utöver detta undersöktes hur produktionskostnaden, för delarna av kranen som rör den manuella styrningen, kunde reduceras. Det upplevda fenomenet är känt som biodynamic feedthrough. Det innebär att konstruktionens acceleration matas genom operatörens kropp oc
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3

Grenier, Emmanuel. "Oscillations et limites singulières dans les équations de la mécanique des fluides et de la physique des plasmas." Paris 6, 1995. http://www.theses.fr/1995PA066610.

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Cette these est essentiellement consacree a l'etude de limites singulieres oscillantes de systemes issus de la mecanique des fluides ou des plasmas. La premiere partie presente differentes approches des limites quasineutre et gyrocinetique des plasmas, par des techniques formelles, analytiques, pseudodifferentielles ou de mesures de defauts. La deuxieme partie est consacree a l'etude de la limite incompressible et a l'asymptotique des fluides tournants. La troisieme partie presente une justification de la methode w. K. B. Avant les chocs, sur l'equation de schrodinger non lineaire. La derniere
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4

Rajesh, S. "Dynamical Approach To The Protevin-Le Chatelier Effect." Thesis, Indian Institute of Science, 2000. https://etd.iisc.ac.in/handle/2005/214.

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Materials when subjected to deformation exhibit unstable plastic flow beyond the elastic limit. In certain range of temperature and strain rates many solid state solutions, both interstitial as well as substitutional, exhibit the phenomenon of serrated yielding which also goes by the name, the Portevin - Le Chatelier (PLC) effect. The origin of this plastic instability is due to the interaction of dislocations with solute atoms. The objective of the thesis is to provide a dynamical systems approach to the study of this plastic flow instability. The thesis work discusses, within the framework o
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5

Rajesh, S. "Dynamical Approach To The Protevin-Le Chatelier Effect." Thesis, Indian Institute of Science, 2000. http://hdl.handle.net/2005/214.

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Materials when subjected to deformation exhibit unstable plastic flow beyond the elastic limit. In certain range of temperature and strain rates many solid state solutions, both interstitial as well as substitutional, exhibit the phenomenon of serrated yielding which also goes by the name, the Portevin - Le Chatelier (PLC) effect. The origin of this plastic instability is due to the interaction of dislocations with solute atoms. The objective of the thesis is to provide a dynamical systems approach to the study of this plastic flow instability. The thesis work discusses, within the framework o
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6

Beck, Johannes Christian. "Analysis of diurnal gene regulation and metabolic diversity in Synechocystis sp. PCC 6803 and other phototrophic cyanobacteria." Doctoral thesis, Humboldt-Universität zu Berlin, 2018. http://dx.doi.org/10.18452/19240.

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Cyanobakterien sind meist photoautotroph lebende Prokaryoten, welche nahezu alle Biotope der Welt besiedeln. Sie gehören zu den wichtigsten Produzenten der weltweiten Nahrungskette. Um sich auf den täglichen Wechsel von Tag und Nacht einzustellen, besitzen Cyanobakterien eine innere Uhr, bestehend aus den Proteinen KaiA, KaiB und KaiC, deren biochemische Interaktionen zu einem 24-stündigen Rhythmus von Phosphorylierung und Dephosphorylierung führen. Die circadiane Genexpression im Modellorganismus Synechocystis sp. PCC 6803 habe ich mittels drei verschiedener Zeitserienexperimente untersucht,
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7

BON, NGUYEN ROMUALD. "Etude de la diffusion Ve-e auprès de la tranche 5 du centre de production nucléaire du Bugey : simulation de l'expérience MUNU de mesure du moment magnétique du neutrino." Université Joseph Fourier (Grenoble), 1997. http://www.theses.fr/1997GRE10173.

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L'experience munu a pour but la mesure du moment magnetique du neutrino grace a l'etude de la diffusion antineutrino electronique-electron aupres d'un reacteur nucleaire. Cette these presente le travail de simulation par la methode monte-carlo de l'experience munu. Cette simulation a permis de mettre en evidence les parametres ayant une influence sur les grandeurs observables de l'experience (moment magnetique, angle de weinberg, parametres decrivant les oscillations de neutrinos) ainsi que de preciser la sensibilite a ces grandeurs. En particulier, il apparait que munu permet d'obtenir une li
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8

Sainte, Agathe Victoria de. "Mesure de la position du pic d'oscillations acoustiques baryoniques dans les forêts Lyα et Lyβ des spectres des quasars du relevé eBOSS-SDSS IV". Thesis, Sorbonne université, 2019. http://www.theses.fr/2019SORUS373.

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La propagation des oscillations acoustiques baryoniques a laissé une empreinte dans la répartition de la matière de l’univers, visible sous la forme d’un excès de probabilité pour deux objets d’être séparés par une distance égale à l’échelle acoustique. La mesure de l’échelle acoustique dans la fonction de corrélation à deux points de la matière au redshift z, parallèlement et perpendiculairement à la ligne de visée donne accès, respectivement, aux rapports DH(z)/rd et DM(z)/rd où DH est la distance de Hubble, DM la distance angulaire comobile et rd l’horizon acoustique. On peut suivre la répa
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9

Vezenkov, Stoyan Raykov. "Pharmacological studies on the contribution of the neuropeptide proctolin to the cephalic control of singing behavior in grasshopper Chorthippus biguttulus (L. 1758)." Doctoral thesis, [S.l.] : [s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=974032557.

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10

Galpin, Jean-Marie. "Étude du couplage entre un métal liquide et un champ magnétique alternant à basse fréquence." Grenoble INPG, 1991. http://www.theses.fr/1991INPG0032.

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L'effet d'un champ magnetique alternant a basse frequence sur un metal liquide presentant une surface libre, est etudie a l'aide d'une cuve cylindrique contenant du mercure et placee dans un solenoide alimente par un courant monophase de frequence 1 a 22 hz. Les mouvements internes turbulents, preponderant pour les valeurs de frequence comprises entre 10 et 22 hz, sont, sur de nombreux points, similaires a ceux observes, dans les etudes anterieures, aux plus grandes valeurs de frequence. La principale particularite est la rapide decroissane de la vitesse moyenne typique et du taux de dissipati
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11

Hess, Christoph. "Propriétés de transport des bronzes oxygénés quasi-bidimensionnels à ondes de densité de charge, (PO2)4(WO3)2m(m=4 à 14)." Université Joseph Fourier (Grenoble), 1997. http://www.theses.fr/1997GRE10117.

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Nous avons etudie les proprietes de transport des bronzes quasi-bidimensionnels (po#2)#4(wo#3)#2#m (m=4 a 14). Ces composes subissent des transitions de peierls vers un etat a onde de densite de charge (odc) constituee d'une modulation de la densite electronique couplee a une distorsion periodique du reseau. Le parametre m est associe a l'epaisseur des feuillets conducteurs wo#6. Avec un nombre d'electrons de conduction constant par maille primitive, on peut etudier l'influence de la variation de la densite electronique et du caractere bidimensionnel sur les instabilites de peierls. Les mesure
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12

Perrier, Pierre. "Fluctuations universelles de conductance dans des systèmes mésoscopiques magnétiques." Grenoble 1, 1991. http://www.theses.fr/1991GRE10169.

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Cette these presente l'etude experimentale de certaines proprietes de fluctuations universelles de conductance dans des systemes mesoscopiques. Nous decrivons tout d'abord le transport coherent qui est l'approche du transport electronique, permettant de rendre compte du phenomene que sont les fluctuations universelles de conductance. Nous nous attacherons ensuite a montrer les differentes methodes experimentales mettant en evidence les proprietes de ces fluctuations (universalite, dependance en temperature, en champ magnetique, effets non locaux, etc). Enfin, nous nous interesserons a l'etude
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13

Pražák, Ondřej. "Laboratorní úloha řízení pohybu při přemisťování zavěšeného předmětu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-231041.

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The diploma thesis deals with automatic control of transferring suspended objects. It is a strongly oscillating system for which a physical trial model has been made. An application has been made for this model, which controls this system by means of PLC, frequency inverter and operating panel, everything by Siemens.
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14

Ortiz, Cantin. "Study of neural correlates of attention in mice with spectro-spatio-temporal approaches." Thesis, KTH, Skolan för datavetenskap och kommunikation (CSC), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-220948.

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While signatures of attention can be observed in widespread areas within and outside of cortex, the control of attention is thought to be regulated by higher cognitive brain areas, such as the prefrontal cortex. In their recent study on mice Kim et al. could show that successful allocation of attention is characterized by increased spiking of a specific type of inhibitory interneurons, the parvalbumin neurons, and higher oscillatory activity in the gamma band in the local prefrontal network. It was recently demonstrated that encoding of working memory in prefrontal areas is linked to bursts of
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15

Dubois, Sylvie. "Propriétés électroniques des composés à ondes de densité de charge KMo6017, NbSe3 et (TSeT)2CI : Etude par magnétotransport en champ magnétique intense." Toulouse, INSA, 1993. http://www.theses.fr/1993ISAT0028.

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Des mesures de magnetoresistance a fort champ magnetique ont ete realisees sur les trois composes de basse dimensionnalite suivants: le bronze violet quasi bidimensionnel kmo#6o#1#7, le trichalcogenure nbse#3 et le conducteur organique (tset)#2cl. Dans l'etat onde de densite de charge basse temperature, ces trois composes presentent des oscillations quantiques de shubnikov-de haas. Pour chacun d'eux, l'oscillation n=0#+ a ete observee et la masse cyclotron ainsi que l'aire des poches de porteurs au niveau de fermi ont pu etre determinees. Une analyse detaillee de la magnetoresistance de kmo#6o
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16

Kumar, Sonu. "Experimental Investigation of Novel High Shear Injector at Elevated Pressure Conditions: Hydrodynamics, Spray and Combustion Characterization." Thesis, 2022. https://etd.iisc.ac.in/handle/2005/5949.

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The stringent pollution and emission norms due to the present climate change and global warming have pushed industries to meet these norms and cut down their emission levels. In the same pipeline, the aviation industries do not remain untouched. The emissions from aircraft engines burning fossil fuel, NOx, CO, unburnt hydrocarbon, etc., affect the atmosphere's upper layer temperature and air quality. These increasing number of air-transport demands and strict emission norms have forced the aviation industry to develop a next-generation aero-engine that can burn fossil fuel more efficiently and
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17

Wu, Chung-yin, and 吳忠穎. "Design and Implementation of A Self-Oscillation Power Converter with PFC Techniques." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/55210164704351085876.

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碩士<br>國立臺灣科技大學<br>電機工程系<br>96<br>The thesis advances an AC-DC converter which is composed of active power factor circuit and self-oscillation DC converter. The purpose of this study is to improve disadvantages of traditional rectifier, reduce the cost and raise the conversion efficiency. The algorithm was proposed to reduce the pulse width modulation controller for flyback converter, then use self-oscillating controller to fulfill the function of DC-DC converter at back stage; moreover, L6561 was used to get high power factor. The simulation software “IsSpice”is applied to simulate the self-os
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18

Kittana, Naim. "Role of Secretory Processes in Cardiac Fibroblasts for Heart Failure Development and Progression." Doctoral thesis, 2014. http://hdl.handle.net/11858/00-1735-0000-0023-9947-D.

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