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Dissertations / Theses on the topic 'Oscillating modulation of the pressure'

Author: Grafiati

Published: 30 May 2022

Last updated: 31 July 2025

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1

Мартинець, Тетяна Вікторівна. "Розширення області застосування антиблокувальних систем легкових автомобілів шляхом спрощення конструкції модуляторів тиску". Thesis, НТУ "ХПІ", 2017. http://repository.kpi.kharkov.ua/handle/KhPI-Press/35084.

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Дисертація на здобуття наукового ступеня кандидата технічних наук за спеціальністю 05.22.02 – автомобілі та трактори. Національний технічний університет "Харківський політехнічний інститут". – Харків, 2017. З метою розширення області застосування АБС за рахунок зниження вартості модулятора тиску досліджено процес осциляційної модуляції тиску. Запропоновано конструкцію осциляційного модулятора, який задовольняє всі висунуті до нього вимоги, та доведено можливість його застосування в якості виконавчого елемента у складі дуальних адаптивних гальмівних системах. Порівняльний аналіз відомих спосо

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Мартинець, Тетяна Вікторівна. "Розширення області застосування антиблокувальних систем легкових автомобілів шляхом спрощення конструкції модуляторів тиску". Thesis, Харківський державний автомобільно-дорожній університет, 2018. http://repository.kpi.kharkov.ua/handle/KhPI-Press/35082.

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Дисертація на здобуття наукового ступеня кандидата технічних наук за спеціальністю 05.22.02 – автомобілі та трактори. Національний технічний університет "Харківський політехнічний інститут". – Харків, 2017. З метою розширення області застосування АБС за рахунок зниження вартості модулятора тиску досліджено процес осциляційної модуляції тиску. Запропоновано конструкцію осциляційного модулятора, який задовольняє всі висунуті до нього вимоги, та доведено можливість його застосування в якості виконавчого елемента у складі дуальних адаптивних гальмівних системах. Порівняльний аналіз відомих способ

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3

Jeong, Eun S. "Heat transfer with oscillating pressure in reciprocating machinery." Thesis, Massachusetts Institute of Technology, 1991. http://hdl.handle.net/1721.1/13259.

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4

Copie, François. "Modulation instabilities in dispersion oscillating passive fiber-ring cavities." Thesis, Lille 1, 2017. http://www.theses.fr/2017LIL10111/document.

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Ces travaux de thèse portent sur l’instabilité paramétrique survenant dans les cavités optiques fibrées passives en anneau, induite par une modulation longitudinale de la dispersion chromatique. Dans les cavités optiques, le processus d’instabilité modulationnelle est connu pour être susceptible de déstabiliser l’état stationnaire et de le transformer en un train stable d’impulsions. Nous décrivons dans ce travail comment une variation longitudinale de la dispersion à l’intérieur de la cavité enrichie la dynamique de ce type de dispositif en engendrant un régime d’instabilité paramétrique. Nou

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5

Copie, François. "Modulation instabilities in dispersion oscillating passive fiber-ring cavities." Electronic Thesis or Diss., Lille 1, 2017. http://www.theses.fr/2017LIL10111.

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Ces travaux de thèse portent sur l’instabilité paramétrique survenant dans les cavités optiques fibrées passives en anneau, induite par une modulation longitudinale de la dispersion chromatique. Dans les cavités optiques, le processus d’instabilité modulationnelle est connu pour être susceptible de déstabiliser l’état stationnaire et de le transformer en un train stable d’impulsions. Nous décrivons dans ce travail comment une variation longitudinale de la dispersion à l’intérieur de la cavité enrichie la dynamique de ce type de dispositif en engendrant un régime d’instabilité paramétrique. Nou

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6

Cheng, Peter D. L. (Peter Dien Leung). "Experiments in heat transfer under conditions of oscillating pressure and flow." Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/35458.

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7

Grassmyer, William Alan. "Experiments in heat transfer under conditions of oscillating pressure and flow." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/35981.

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8

Carroll, Matthew J. "First Order Self-Oscillating Class-D Circuit with Triangular Wave Injection." DigitalCommons@CalPoly, 2021. https://digitalcommons.calpoly.edu/theses/2303.

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An investigation into performance improvements to the modulator stage of a class-D amplifier is conducted in this thesis. Two of the standard topologies, namely class-D open-loop pulse-width modulation (PWM), and the improved self-oscillating feedback system are benchmarked against a topology which includes both a hysteretic comparator in a feedback loop and triangle wave injection. Circuit performance is analyzed by comparing how the triangle injection circuit handles known issues with open-loop and self-oscillating circuits. Using this analysis, it is shown that the triangle injection topolo

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9

Tziranis, Alexander Konstantinos 1968. "Temperature, heat flux, and velocity measurements in oscillating flows with pressure variations." Thesis, Massachusetts Institute of Technology, 1992. http://hdl.handle.net/1721.1/12790.

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Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1992.<br>Vita.<br>Includes bibliographical references (leaves 99-101).<br>by Alexander Konstantinos Tziranis.<br>M.S.

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10

King, Cameron V. "Time-Resolved PIV And Pressure Measurements Of Oscillating And Pulsating Flow In A Diffuser." DigitalCommons@USU, 2008. https://digitalcommons.usu.edu/etd/106.

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Separating oscillating and pulsating flows in an internal adverse pressure gradient geometry are studied experimentally. Simultaneous velocity-pressure measurements demonstrate that the minor losses associated with oscillating flow in an adverse pressure gradient geometry can be smaller or larger than for steady flow. Separation is found to begin high in the diffuser and propagate downward. Flows are able to remain attached further into the diffuser with larger Reynolds numbers, larger stroke lengths, and smaller diffuser angles. The extent of separation grows with Lo/h. The minor losses grow

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11

Ma, Jinge. "Design of Frequency Output Pressure Transducer." Thesis, University of North Texas, 2015. https://digital.library.unt.edu/ark:/67531/metadc804933/.

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Piezoelectricity crystal is used in different area in industry, such as downhole oil, gas industry, and ballistics. The piezoelectricity crystals are able to create electric fields due to mechanical deformation called the direct piezoelectric effect, or create mechanical deformation due to the effect of electric field called the indirect piezoelectric effect. In this thesis, piezoelectricity effect is the core part. There are 4 parts in the frequency output pressure transducer: two crystal oscillators, phase-locked loop (PLL), mixer, frequency counter. Crystal oscillator is used to activate th

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12

Davis, G. R. "Remote sensing of atmospheric water vapour by pressure modulation radiometry." Thesis, University of Oxford, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.233505.

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13

Kalogeros, Gus Constantinos. "The modulation of cytosolic calcium by high pressure and anesthetic agents." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0008/NQ31173.pdf.

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14

Venters, Peter. "The pressure modulation system in the improved stratospheric and mesospheric sounder." Thesis, University of Oxford, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.303614.

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15

Dean, Charles Edwin. "Establishing baseline data for an experimental apparatus that measures heat transfer under conditions of oscillating pressure and flow." Thesis, Massachusetts Institute of Technology, 1993. http://hdl.handle.net/1721.1/38726.

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16

Hagborg, Martin. "Tryckpulsgenerering för funktionskalibrering av mätsystem." Thesis, Linköping University, Department of Science and Technology, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-1719.

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<p>The running of gas turbines with low emissions causes high pressure pulsations to arise in the combustion chamber. These pulsations are high amplitude sound vibrations. At some frequencies these are harmful to the gas turbine. Hence these pulsations are monitored to avoid operating conditions where pulsations are specifically harmful. It is necessary to expose the system of known pulsations to verify the functionality of the monitoring process. </p><p>This report describes the development of a generator of pressure pulsations to verify the monitoring system. The output should be of harmonic

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17

Liang, Pengfei. "The modified Synchronization Modulation technique revealed mechanisms of Na,K-ATPase." Scholar Commons, 2019. https://scholarcommons.usf.edu/etd/7846.

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The Na/K pumps are essential for living system and widely expressed in all eukaryotic cell membranes. By actively transporting sodium ions out of and potassium ions into the plasma membrane, Na/K pumps creates both an electrical and a chemical gradient across the plasma membrane, which are crucial for maintaining membrane potential, cell volume, and secondary active transporting of other solutes, etc. Previously, oscillating electric field with a frequency close to the mean physiological turnover rate was used to synchronize and modulate the Na/K pump molecules. Results showed that the turnove

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18

Norgard, Peter. "Development of a gigawatt repetitive pulse modulator and high-pressure switch test stand and results from high-pressure switch tests." Diss., Columbia, Mo. : University of Missouri-Columbia, 2006. http://hdl.handle.net/10355/4584.

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Thesis (M.S.)--University of Missouri-Columbia, 2006.<br>The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on April 22, 2009) Includes bibliographical references.

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19

Borasio, Marta. "Polarization modulation infrared reflection absorption spectroscopy on Pd model catalysts at elevated pressure." [S.l.] : [s.n.], 2006. http://www.diss.fu-berlin.de/2006/351/index.html.

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20

Myrelid, Pär. "Surgery and immuno modulation in Crohn’s disease." Doctoral thesis, Linköpings universitet, Kirurgi, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-54816.

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Crohn’s disease is a chronic inflammatory bowel disease with unknown origin. This study investigates the combined use of surgery and immuno modulation in Crohn’s disease. The outcome of medication and surgery in 371 operations on 237 patients between 1989 and 2006 were evaluated. Moreover the effects of prednisolone, azathioprine and infliximab on the healing of colo-colonic anastomosis in 84 mice with or without colitis were evaluated. The use of thiopurines after abdominal surgery in selected cases of severe Crohn’s disease was found to prolong the time to clinical relapse of the disease fro

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21

Sharma, Arvindh R. "Liquid Jet in Oscillating Crossflow: Characterization of Near-Field and Far-Field Spray Behavior." University of Cincinnati / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1439281517.

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22

Vaughan, Debra L. "Modulation of glomerular morphology by varying dietary protein intake in spontaneously hypertensive rats : a stereological study." Thesis, Keele University, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.319024.

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23

Abdul, Wahab Norsila. "Modulation of swallowing behaviour by olfactory and gustatory stimulation." Thesis, University of Canterbury. Department of Communication Disorders, 2012. http://hdl.handle.net/10092/6574.

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Swallowing impairment or dysphagia can be a consequence of several neurological and anatomical disorders such as stroke, Parkinson’s diseases, and head and neck cancer. Management of patients with dysphagia often involves diet modification, sensory stimulation, and exercise programme with the primary goal being safe swallowing to maintain nutrition. The aim of this project was to evaluate the effects of lemon odour and tastant on swallowing behaviour in healthy young adults. Specifically, the neural excitability and biomechanical characteristics of swallowing were measured in two studies. Neu

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24

Wilkinson, Mary. "Cardiac cycle related modulation of electrocutaneous pain and tactile stimuli." Thesis, Loughborough University, 2014. https://dspace.lboro.ac.uk/2134/14160.

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Research suggests hypertension is associated with reduced somatosensory perception. Further, natural fluctuations in blood pressure (BP) across the cardiac cycle have been shown to modulate nociceptive responding, pain and tactile sensitivity, suggesting that arterial baroreceptors may be important moderators of somatosensation. This thesis further examined the influence of natural fluctuations in BP, and thus baroreceptor activity, across the cardiac cycle on electrocutaneous pain and tactile sensory thresholds and pain-related evoked potentials (PREPs) in normotensive individuals. Study 1 fo

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25

van, Wieringen Tijs. "Intra- and Extracellular Modulation of Integrin-directed Connective Tissue Cell Contraction." Doctoral thesis, Uppsala universitet, Institutionen för medicinsk biokemi och mikrobiologi, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-102349.

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All blood vessels in the microvasculature are embedded in loose connective tissue, which regulates the transport of fluid to and from tissues. The intersti-tial fluid pressure (IFP) is one of the forces that control this transport. A lowering of IFP in vivo results in an increased transport of fluid from the circulation into the underhydrated connective tissues, resulting in edema formation. During homeostasis, contractile connective tissue cells exert a tension on the connective tissue fibrous network by binding with β1 in-tegrins, thereby actively controlling IFP. During inflammation, the IF

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26

McGlone, Sarah T. "Affective Modulation of Nociception in Individuals at Differential Risk for Developing Hypertension." Ohio University / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1248811754.

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27

Kuznetsov, Nikita A. "Modulation and Coordination of Respiratory Rhythm with Discrete Finger Movements in Manual Precision Aiming." University of Cincinnati / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1291407910.

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28

Sejdic, Andrea. "Modulation of Prey-Capture Kinematics and Suction Feeding Performance in Smallmouth Bass, Micropterus Dolomieu." TopSCHOLAR®, 2016. http://digitalcommons.wku.edu/theses/1573.

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The feeding behavior of fishes is a topic that has piqued the interests of many researchers given the dynamic and ancestral nature of aquatic prey-capture. This study examines aquatic feeding in terms of the suction and ram components of feeding in smallmouth bass, Micropterus dolomieu, and how they modulate their kinematic behavior when attacking pelagic and benthic prey. Relative to other Micropterus genera, the reduced gape in smallmouth bass suggests they may create considerable suction pressure – stronger subambient pressure pulled through a smaller opening creates greater velocity. Sucti

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29

Hu, Jin-Jia. "Pressure-induced growth and remodeling of arteries in a porcine aortic coarctation model." Texas A&M University, 2005. http://hdl.handle.net/1969.1/4982.

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Hypertension is a risk factor for many cardiovascular and cerebrovascular diseases such as atherosclerosis and stroke. It is therefore important to understand the effect of hypertension on temporal growth and remodeling of arteries. In this study, experimental hypertension was induced in the mini-pig by aortic coarctation. Basilar arteries and aortas were collected for analysis over an eight week period of hypertension with specimens from normotensive animals serving as controls. Changes in mechanical properties of the basilar artery were evaluated by in vitro pressure-diameter tests on intact

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30

LeGates, Sarah. "Modulation of Intraoral Subambient Pressure and Feeding Behavior Relative to Prey Type in the Largemouth Bass, Micropterus Salmoides Floridanus." TopSCHOLAR®, 2006. http://digitalcommons.wku.edu/theses/291.

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Variation, or modulation, of suction feeding performance across two prey location treatments, as measured by peak subambient pressure generation, was studied in the Florida largemouth bass, Micropterus salmoides floridanus. Previous studies of suction feeding in centrarchids have excluded possible sources of performance variation to minimize the modulatory response. Florida bass are known to modulate their feeding kinematics when exposed to prey at different levels of elusiveness, and were in turn predicted to vary suction pressure generation when exposed to these conditions. Eight bass fed Pa

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31

AbdelMeguid, Hossam Saadeldin. "Pressure, leakage and energy management in water distribution systems." Thesis, De Montfort University, 2011. http://hdl.handle.net/2086/4905.

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A fast and efficient method to calculate time schedules for internal and boundary PRVs and flow modulation curves has been developed and implemented. Both time and flow modulation can be applied to a single inlet DMA. The time modulation methodology is based on solving a nonlinear programming problem (NLP). In addition, Genetic Algorithms (GA) has been proposed and investigated to calculate the optimal coefficients of a second order relationship between the flow and the outlet pressure for a PRV to minimize the background leakage. The obtained curve can be subsequently implemented using a flow

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32

Lidén, Åsa. "Integrin αVβ3-Directed Contraction by Connective Tissue Cells : Role in Control of Interstitial Fluid Pressure and Modulation by Bacterial Proteins". Doctoral thesis, Uppsala University, Department of Medical Biochemistry and Microbiology, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-6601.

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<p>This thesis aimed at studying mechanisms involved in control of tissue fluid homeostasis during inflammation.</p><p>The interstitial fluid pressure (P<sub>IF</sub>) is of importance for control of tissue fluid balance. A lowering of P<sub>IF</sub> <i>in vivo</i> will result in a transport of fluid from the circulation into the tissue, leading to edema. Loose connective tissues that surround blood vessels have an intrinsic ability to take up fluid and swell. The connective tissue cells exert a tension on the fibrous network of the tissues, thereby preventing the tissues from swelling. Under

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33

Allen, Adrian. "Modulation of contractile function through neuropeptide Y receptors during the development of cardiomyocyte hypertrophy in a model of pressure overload." Thesis, Queen's University Belfast, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.368483.

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34

Lumpkins, Logan, and Craig Wassinger. "Effects of Lower Extremity Aerobic Exercise and Conditioned Pain Modulation on Evoked Shoulder Pain." Digital Commons @ East Tennessee State University, 2017. https://dc.etsu.edu/honors/434.

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Background: Emerging evidence suggests that aerobic exercise and conditioned pain modulation may be advocated in treating patients with musculoskeletal pain. The effects of lower extremity aerobic exercise and conditioned pain modulation on evoked shoulder pain are not known. Purpose: To determine the acute effects of lower extremity aerobic exercise and conditioned pain modulation on outcomes of evoked shoulder pain from pain pressure threshold measurements. Study Design: Repeated measures. Methods: Thirty (30) healthy volunteers were tested over the course of two sessions. Session 1 consiste

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35

Spira, Geela. "Sensory intervention to improve sleep behaviors and social participation of children in Israel with Sensory Modulation Disorder." Diss., NSUWorks, 2014. https://nsuworks.nova.edu/hpd_ot_student_dissertations/35.

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The aim of this study was to investigate a sensory intervention of moderate pressure touch on children with sensory modulation disorder on the outcomes of sleep behaviors and social participation. 50 children, aged 6-11 years, with both sensory modulation disorder and sleep difficulties were randomly divided into an experimental group and a control group. The experimental group participants received three weeks of nightly massage by their parents. The parents filled out questionnaires reporting on sleep behaviors, sensory modulation, and social participation, as well as recording a sleep log,

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Rosnizeck, Ina [Verfasser], and Hans Robert [Akademischer Betreuer] Kalbitzer. "Modulation of conformational equilibria of human H-Ras protein by metal-chelate derivatives and high pressure studied by NMR spectroscopy / Ina Rosnizeck. Betreuer: Hans Robert Kalbitzer." Regensburg : Universitätsbibliothek Regensburg, 2010. http://d-nb.info/1027009948/34.

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37

Güntzel, Adriana Meira. "O efeito do tubo T e da pressão suporte sobre variaveis cardiorrespiratórias e variabilidade da freqüencia cardíaca durante o desmame da ventilação mecânica." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2007. http://hdl.handle.net/10183/13417.

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Introdução: A descontinuação da ventilação mecânica (VM) e a restituição da ventilação espontânea podem acarretar importantes alterações cardiovasculares devido a modificações da pressão intratorácica. O comportamento da modulação autonômica avaliada através da variabilidade da freqüência cardíaca (VFC) durante o desmame da VM e ainda não está bem esclarecido, assim como sua repercussão nas variáveis cardiorrespiratórias. Objetivo: Verificar o efeito do tubo T (TT) e da ventilação com pressão suporte (PSV), durante o desmame da VM, sobre variáveis cardiorrespiratórias e variabilidade da freqüê

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Kanegusuku, Hélcio. "Efeito do treinamento resistido progressivo de alta intensidade sobre a pressão arterial e seus mecanismos hemodinâmicos e neurais em idosos." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/39/39132/tde-16022012-151107/.

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O treinamento resistido progressivo de alta intensidade tem sido empregado para aumentar a massa e força musculares de indivíduos idosos. Entretanto, existe na área clínica alguma preocupação de que esse treinamento possa promover efeitos adversos sobre o sistema cardiovascular envelhecido. Assim, o objetivo do presente estudo foi avaliar os efeitos do treinamento resistido progressivo de alta intensidade sobre a pressão arterial clínica e ambulatorial e seus mecanismos hemodinâmicos e neurais de idosos. Para tanto, 25 indivíduos com idade entre 60 e 80 anos foram divididos aleatoriamente em d

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39

Merkle, Shannon L. M. "Exploring pain & movement relationships: is greater physical activity associated with reduced pain sensitivity & does endogenous muscle pain alter protective reflexes in the upper extremity?" Diss., University of Iowa, 2016. https://ir.uiowa.edu/etd/2245.

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Pain and movement are intimately connected and nearly universal human experiences. However, our understanding of the extent, significance, and mechanisms of pain-movement relationships is limited. While pain is a normal, protective response to injury and potentially harmful stimuli, prolonged or dysfunctional neuromuscular adaptions in response to pain can contribute to a variety of pain conditions. Alternatively, movement (in the form of global physical activity, individual exercise programs, and/or specific motor learning/functional tasks) is often prescribed to help decrease pain and improv

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40

Nguyên, Van Tuê. "Calcul de pression et d'efforts sur un profil en mouvement : application aux systèmes de récupération d'énergie." Thesis, Poitiers, 2017. http://www.theses.fr/2017POIT2263/document.

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La détermination du champ de pression dans un écoulement et/ou des efforts sur un profil en mouvement à partir de mesures de vitesses effectuées dans le milieu fluide est une problématique actuelle qui intéresse de nombreux domaines de recherche en mécanique des fluides. On pourrait citer en particulier, les systèmes de récupération d'énergie (éolienne, hydrolienne) ou bien les systèmes de contrôle optimal d'aubes de guidage de turbine, etc…Dans ce mémoire, nous apportons notre contribution à ce problème en proposant dans un premier temps, une méthode originale qui permet, à partir de champs d

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41

Chehuen, Marcel da Rocha. "Efeito do treinamento de caminhada sobre o risco, a função e a regulação cardiovasculares em indivíduos com claudicação intermitente." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/39/39132/tde-11052015-095750/.

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O treinamento de caminhada (TC) é recomendado para o tratamento de indivíduos com claudicação intermitente (CI) porque melhora a capacidade de caminhada. Além disso, seria interessante que o TC também promovesse modificações benéficas no sistema cardiovascular, pois os eventos cardiovasculares são a principal causa de morte nestes indivíduos. No entanto, os efeitos cardiovasculares do TC em indivíduos com CI foi pouco estudado. Assim, o objetivo deste estudo foi verificar o efeito do TC sobre o risco, a função e a regulação cardiovasculares em indivíduos com CI. Quarenta e dois indivíduos com

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42

Zuo, Peng. "Synthèses, études structurales et physiques de doubles pérovskites ordonnées NaLnCoWO6 : recherche de nouveaux composés multiferroïques basés sur la ferroélectricité hybride impropre." Thesis, Université Grenoble Alpes (ComUE), 2017. http://www.theses.fr/2017GREAI113/document.

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Ce travail porte sur la synthèse et la caractérisation de nouveaux matériaux multiferroïques basés sur le concept très récent de la Ferroélectricité Hybride Impropre.Deux classes de matériaux ont été envisagées : les oxydes de type Ruddlesden-Popper NaRMO4 (R=Y, La; M= Mn, Cr) et les doubles pérovskites ordonnées NaLnCoWO6 (Ln= Y, La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, and Yb). Les essais de synthèse sur la première classe n’ont pas permis d’obtenir les composés visés. Pour la seconde classe, l’ensemble des composés ont pu être obtenus par synthèse par voie solide à haute température. Les com

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Lebouteiller, Claire. "Dispositif pour le chargement rapide d'une cavité miniaturisée : vers un registre de qubits atomiques." Thesis, Paris 6, 2016. http://www.theses.fr/2016PA066100/document.

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L’exploration expérimentale de l’intrication quantique est un domaine de recherche très actif actuellement. Les systèmes d’électrodynamique quantique en cavité permettent notamment de générer de l’intrication dans des ensembles de plusieurs dizaines de particules, grâce à l’interaction à longue portée fournie par un mode du champ électromagnétique. Mon travail de thèse a consisté à mettre en place un nouveau dispositif expérimental aﬁn d’assurer le chargement rapide et ﬁable d’une cavité optique miniaturisée à l’intérieur de laquelle l’adressage et la détection d’atomes uniques viennent s’ajou

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Parent, Alexandre. "Intégrité et fonctionnalité des mécanismes descendants d'inhibition de la douleur en contexte de douleur chronique : perspectives en recherche translationnelle." Thèse, Université de Sherbrooke, 2015. http://hdl.handle.net/11143/6991.

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Résumé : Introduction: À ce jour, notre compréhension des mécanismes neurophysiologiques responsables du développement d'une douleur chronique est encore relativement limitée. Il est proposé que certaines modifications dans l'efficacité des mécanismes endogènes d'inhibition descendante de la douleur pourraient contribuer à ce phénomène. Considérant l'importance de la neurotransmission monoaminergique dans les mécanismes descendants de modulation de la douleur, autant inhibiteur que facilitateur, nous émettons l'hypothèse que la persistance temporelle d'une douleur peut provoquer des modificati

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Queiroz, Andreia Cristiane Carrenho. "Hipotensão pós-exercício resistido em idosos: caracterização e mecanismos." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/39/39132/tde-20082010-093723/.

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O treinamento resistido (TR) de alta intensidade tem sido recomendado para reverter as alterações musculares promovidas pelo envelhecimento. Porém, o envelhecimento também se associa de aumento da pressão arterial (PA). Uma sessão de TR promove hipotensão pós-exercício em jovens, mas este efeito não está claro em idosos, sendo este o objetivo dessa dissertação. 16 idosos participaram, após 10-12 semanas de TR, de 2 sessões realizadas em ordem aleatória: Controle-C (repouso) e Exercício-E (3 séries, 8 RM, 7 exercícios). A PA, o débito cardíaco (DC), a freqüência cardíaca (FC), a modulação auton

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Teixeira, Luiz. "Efeito isolado e associado do exercício físico aeróbio e resistido na pressão arterial pós-exercício e seus mecanismos hemodinâmicos, neurais e de estado de ansiedade." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/39/39132/tde-31052012-173417/.

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A hipotensão pós-exercício têm sido observada tanto após o exercício aeróbio quanto o resistido, porém o efeito desta associação não é conhecido. Este estudo verificou, o efeito agudo isolado e associado do exercício aeróbio e resistido na pressão arterial (PA) pós-exercício e nos seus mecanismos. 23 jovens submeteram-se a 4 sessões: controle(C); exercício aeróbio - 30 minutos em cicloergômetro em 75% do VO2 pico (A); c) exercício resistido; 6 exercícios, 3 séries de 20 repetições, 50% de uma repetição máxima (R) e; d) associação do exercício aeróbio e resistido (AR). Após as sessões de exercí

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Toscano, Luciana Tavares. "Efeitos da suplementação de chia (salvia hispanica L.) Sobre a pressão arterial, estresse oxidativo, inflamação e modulação autonômica cardíaca em indivíduos hipertensos: um estudo de intervenção." Universidade Federal da Paraíba, 2014. http://tede.biblioteca.ufpb.br:8080/handle/tede/4297.

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Made available in DSpace on 2015-04-17T15:03:01Z (GMT). No. of bitstreams: 1 arquivototal.pdf: 1656218 bytes, checksum: 23c82b75141487f08ac4a8ea2d56cdad (MD5) Previous issue date: 2014-03-21<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES<br>Hypertension is a multifactorial condition treated by pharmacological and complementary measures such as nutritional approach. In this context, Chia (Salvia hispanica L.) stands out for its nutritional, antioxidant and anti-inflammatory composition. However, it has not yet been elucidated if Chia can reduce blood pressure in hypert

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OCHOA, MUNERA JUAN EUGENIO. "Effects of insulin resistance on systemic haemodynamics and autonomic cardiovascular regulation in normotensive healthy adults." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2013. http://hdl.handle.net/10281/46090.

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Hemodynamic effects of insulin resistance (IR) are thought to be largely dependent on its relationship with body mass index (BMI) and blood pressure (BP) levels. The first part of the present thesis was aimed at exploring whether IR is associated with hemodynamic indices of cardiovascular function in a large sample of non-diabetic individuals from the general population (n=731) and if so, to explore if such relationship is continuous across different categories of BMI (lean, overweight and obese), and BP (normal BP, high-normal BP and hypertension). IR was assessed with the homeostasis model a

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Nyirumulinga, Yohann. "Etude expérimentale de l'aéroélasticité d'une plaque oscillante impactée par une batterie de jets turbulents." Thesis, Paris, CNAM, 2011. http://www.theses.fr/2010CNAM0764.

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Les instabilités aéroélastiques de bandes d’acier constituent aujourd’hui l’un des problèmes majeurs dans les sections de refroidissement par jets impactants des lignes de recuit continues.En effet, le traitement thermique des nouveaux aciers nécessite de très fortes pentes de température impliquant constamment des augmentations de vitesse de soufflage susceptibles de mettre en jeu des instabilités aéroélastiques. Des flottements ainsi que des divergences de bande ont déjà été constatées et identifiées. Ces deux instabilités impliquent dans la plupart des cas des chocs entre la bande et les bu

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Medeghini, Fabio. "Optics and acoustics with a single nano-object : environment effects." Thesis, Lyon, 2018. http://www.theses.fr/2018LYSE1026/document.

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Dans cette thèse, les propriétés d'une nanoparticule unique ont été réglée en modifiant son environnement.Plus spécifiquement, dans la première partie de ce travail, la résonance des plasmons de surface des nanobipyramides d'or individuelles a été étudié expérimentalement dans un milieu sous pression contrôlable et son évolution encadré par modélisations théoriques.Afin d'accéder à l'optique d'une nanoparticule unique tout en générant un environnement sous haute-pression, la combinaison de la spectroscopie par modulation spatial avec la cellule en enclume de diamant a été atteint.Dans la secon

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