Academic literature on the topic 'Taux de modulation'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Taux de modulation.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Journal articles on the topic "Taux de modulation"
COLLEAU, J. J., D. REGALDO, and P. L. GASTINEL. "Adaptation de l’index francais de sélection laitière (INEL) au contexte des quotas." INRAE Productions Animales 7, no. 3 (June 24, 1994): 151–67. http://dx.doi.org/10.20870/productions-animales.1994.7.3.4166.
Full textPouchieu, C., V. Chajès, F. Laporte, E. Kesse-Guyot, P. Galan, S. Hercberg, P. Latino-Martel, and M. Touvier. "P014 Étude prospective des liens entre taux d’acides gras plasmatiques et risque de cancer (au global et du sein) : modulation par les antioxydants." Cahiers de Nutrition et de Diététique 48 (December 2013): S64. http://dx.doi.org/10.1016/s0007-9960(13)70373-0.
Full textPouchieu, C., V. Chajès, F. Laporte, E. Kesse-Guyot, P. Galan, S. Hercberg, P. Latino-Martel, and M. Touvier. "P014 Étude prospective des liens entre taux d’acides gras plasmatiques et risque de cancer (au global et du sein) : modulation par les antioxydants." Nutrition Clinique et Métabolisme 27 (December 2013): S64. http://dx.doi.org/10.1016/s0985-0562(13)70347-9.
Full textCarton, L., F. Auger, N. Durieux, M. Petrault, J. Labreuche, D. Allorge, O. Cottencin, N. Simon, R. Bordet, and B. Rolland. "Effet longitudinal d’une administration aiguë d’éthanol sur le GABA et le glutamate : une étude en spectroscopie par résonance magnétique in vivo chez le rat." European Psychiatry 30, S2 (November 2015): S116. http://dx.doi.org/10.1016/j.eurpsy.2015.09.222.
Full textMorin, L., A. F. Pierre, P. Tissieres, J. Miatello, and P. Durand. "Actualités sur le sepsis et le choc septique de l’enfant." Médecine Intensive Réanimation 28, no. 3 (December 24, 2018): 239–48. http://dx.doi.org/10.3166/rea-2018-0080.
Full textTouvier, M., E. Kesse-Guyot, V. Andreeva, L. Fezeu, N. Charnaux, A. Sutton, N. Druesne-Pecollo, et al. "O58 Modulation de l’association prospective entre le taux plasmatique d’ICAM-1 et le risque de cancer par les acides gras polyinsaturés n-3 : étude cas-témoins nichée dans la cohorte SU.VI.MAX." Cahiers de Nutrition et de Diététique 46 (December 2011): S48—S49. http://dx.doi.org/10.1016/s0007-9960(11)70079-7.
Full textTouvier, M., E. Kesse-Guyot, V. Andreeva, L. Fezeu, N. Charnaux, A. Sutton, N. Druesne-Pecollo, et al. "O58 Modulation de l’association prospective entre le taux plasmatique d’ICAM-1 et le risque de cancer par les acides gras polyinsaturés n-3 : étude cas-témoins nichée dans la cohorte SU.VI.MAX." Nutrition Clinique et Métabolisme 25 (December 2011): S48—S49. http://dx.doi.org/10.1016/s0985-0562(11)70062-0.
Full textBrion, Jean-Pierre, Kunie Ando, Céline Heraud, and Karelle Leroy. "Modulation of tau pathology in tau transgenic models." Biochemical Society Transactions 38, no. 4 (July 26, 2010): 996–1000. http://dx.doi.org/10.1042/bst0380996.
Full textPiram, L., T. Frédéric-Moreau, J. Miroir, N. Saroul, N. Pham Dang, L. Berger, J. Biau, and M. Lapeyre. "Étude prospective évaluant l’impact de la couverture du volume cible prévisionnel à haut risque par l’isodose 95 % sur les taux de contrôle local et de survie globale dans les cancers des voies aérodigestives supérieures pris en charge par radiothérapie conformationnelle avec modulation d’intensité." Cancer/Radiothérapie 20, no. 6-7 (October 2016): 717. http://dx.doi.org/10.1016/j.canrad.2016.08.013.
Full textDominguez-Meijide, Antonio, Eftychia Vasili, and Tiago Fleming Outeiro. "Pharmacological Modulators of Tau Aggregation and Spreading." Brain Sciences 10, no. 11 (November 13, 2020): 858. http://dx.doi.org/10.3390/brainsci10110858.
Full textDissertations / Theses on the topic "Taux de modulation"
Azaiez, Asma. "Les singularités en temps fini pour les équations semi-linéaires des ondes." Thesis, Paris 13, 2014. http://www.theses.fr/2014PA132046.
Full textThis thesis is devoted to the study of the finite time blow-up phenomena for the semilinear waves equations. We treat two models in this work.In the first part, we consider a complex-valued solution for the semilinear wave equation with power nonlinearity. We first characterize all the solutions of the associated stationary problem as a two-parameter family. Then, weuse a dynamical system formulation to show that the solution in self-similar variables approaches some particular stationary one in the energy norm, in the non-characteristic case. This gives the blow-up profile for the original equation in the non-characteristic case.The second part is dedicated to the study of the semilinear wave equation with exponential nonlinearity in one space dimension. We generalize the results of Godin to a much larger class of initial data. We prove blow-up estimates near any point and give an optimal bound on the blow-up rate near the non characteristic points
Gonzalez, Walter. "Effet cardio-vasculaire et rénal d'un inhibiteur mixte, de l'endopeptidase neutre et de l'enzyme de conversion de l'angiotensine : modulation des taux de peptides vasoactifs et natriurétiques." Paris 5, 1996. http://www.theses.fr/1996PA05P607.
Full textZwingelstein, Marie. "Etude de l'optimisation d'un système DMT-ADSL : application à la transmission video MPEG-2 en mode hiérarchique." Valenciennes, 1999. https://ged.uphf.fr/nuxeo/site/esupversions/4b8844ca-e7ac-4cb4-81df-9d40eda5bd20.
Full textThe work presented in this thesis is related to the digital transmission system ADSL (Asymmetric Digital Subscriber Line) which uses existing subscriber lines in copper twisted pairs to transmit data at several megabits per second. One key element of ADSL to use DMT (Discrete MultiTone) modulation to adapt the transmitted signal to the channel thanks to the choice of frequency bit and power loading. In a first part, a brief review of bit and power loading influence on the BER (Bit Error Rate) leads us to propose two original loading methods of different compromise performance / complexity. For both methods, the bit loading is simply calculated to match with the optimum of channel capacity. Regarding power, the first method (optimal) allocates it to minimize the BER, and the second one (more simple) so that the conventional and slightly sub-optimal equal SER (Symbol Error Rate) assumption is satisfied. Simulation results on characteristic ADSL loops have shown that both proposed methods perform better than the conventional ones, in particular the Hughes-Hartogs’ and the Peter Chow’s. The second part of the work is dedicated to MPEG-2 video transmission on ADSL. The originality is to use a bi-resolution modulation and transmission scheme which provides a high degree of protection to the most important data to the prejudice of less important data, so that the QoS (Quality of Service) is improved. In this context, we have presented three different architectures for a bi-resolution ADSL system. They act either at the DMT modulation level, or at the FEC (Forward Error Correction) level by differentially Reed-Solomon encoding important and less important data. The results have shown the validity of these kinds of architectures. For a typical ratio of most important data equal to 30%, the BER of most important data can be divided by 100 in comparison with the mono-resolution BER, whereas the BER for less important data is only multiplied by 2
Gamarra, Lazo Giselle del Carmen. "Modulation des taux plasmatiques d’insuline par l’apport de propylène glycol dans l’alimentation : effet sur la quantité, la qualité des ovocytes et des embryons produits in vitro chez des génisses laitières." Thesis, Paris, AgroParisTech, 2014. http://www.theses.fr/2014AGPT0083.
Full textThe ovum pick-up and in vitro embryo production method in heifers can accelerate the speed of genetic progress through the female line. However, to be effective it requires high numbers of usable oocytes to be collected and high numbers of transferable embryos and high embryo survival after cryopreservation to ensure the maintenance of pregnancy after transfer. The variability in the quality of oocytes and embryo development rates in vitro may be influenced by the dietary intake of donor cattle before oocyte recovery and may be related to the concentrations of metabolites and hormones involved in regulating energy metabolism: in particular, increased levels of insulin and IGF1 were associated with high energy intake in dairy heifers. Moreover, in heifers, it was shown that diets that increase insulin concentrations negatively influence the quality of oocytes. However an increase in insulin concentrations over a short lapse of time has a positive effect on the growth of small follicles prior to superovulatory treatment. These findings support the idea that it may be possible to modulate insulin concentrations transiently to improve reproductive success. The addition of propylene glycol (PG) to the diet increases the concentrations of insulin and IGF1 in plasma in cows during the post-partum period. Anti-müllerian hormone (AMH) is an endocrine marker of the size of the pool of ovarian gonadotrophin-responsive follicles in the cow, and plasma AMH concentrations measured before stimulation of follicular growth with FSH hormone treatment can help predict the response of individuals. In this thesis, we investigated the effect of shortterm PG administration to modulate the levels of insulin, follicular growth, the superovulatory response and in vitro embryo production after OPU in heifers with different pre-experimental circulating AMH profiles (high, H vs. low, L). Firstly, the relationship between the dose of propylene glycol in dairy heifers and the insulin response was established. Secondly, the number and morphological quality of oocytes and embryos produced with and without a supplement of propylene glycol in feed-restricted heifers were determined. Thirdly, the gene expression patterns of the IGF system in oocytes and cumulus cells and the expression profile of selected candidate genes that are important for in vitro embryo development were evaluated. Plasma concentrations of some hormones and metabolites and their relationship with PG were also studied.Our data show that administration of PG increased plasma insulin, IGF1 and glucose concentrations and decreased plasma β-hydroxybutyrate (BHB) and urea concentrations in feed-restricted heifers. PG as an oral drench also increased IGF1 concentrations in follicular fluid. In addition, PG increased the number of small (2–3mm) follicles on Day 2 during the first follicle wave in both AMH groups (H and L) compared with the control treatment (water drench). PG only continued to have a positive effect on the number of medium (4–8mm) follicles on Day 5 after stimulation of follicular growth in the AMH H group. Additionally, there was a significant increase in Day 7 Grade 1 blastocysts (expressed as a percentage of fertilized oocytes) after PG compared with control treatment in both AMH groups of heifers. PG increased the number of expanded blastocysts at Day 7 compared with control but only in AMH H and not AMH L heifers. Additionally, PG modified the gene expression pattern of the IGF system in cumulus cells and produced changes in gene expression in blastocysts. Consequently, our data showed that PG administration is effective in improving in vitro embryo production probably due to the existence of epigenetic regulation induced by PG during follicular growth in the IGF1 system. This regulation system may modulate the follicular environment and level of gene expression up to the blastocyst stage more markedly in heifers with high compared to low AMH levels
Rachedi, Kammel. "Antennes compactes reconfigurables en diagramme de rayonnement pour la modulation spatiale MIMO et introduction aux communications numériques par rétrodiffuseurs." Thesis, Sorbonne université, 2019. http://www.theses.fr/2019SORUS323.
Full textThe Spatial Modulation MIMO (Multiple Input Multiple Output) SM-MIMO has emerged to meet both the growing need for high data rates and energy efficiency of connected devices for the Internet of Things (IoT) and wireless networks (5G , Wi-Fi, etc ...). It is characterized by the use of a network of transmitters. Each element of the transmitter network encodes a particular symbol. But this solution is not conceivable for the implementation of small connected objects. In the first part of the thesis, we have developed several reconfigurable antennas. For our purposes, a reconfigurable antenna has different radiation patterns whose each of them codes for a particular binary data. The first prototypes manufactured are based on a meander line in coupling with parasitic resonators. To increase the antenna’s compactness, we have developed a split-ring antenna generating 8 different decorrelated radiation patterns at the frequency of 2.45GHz. To estimate the reliability of the radio transmission, we numerically compute and experimentally evaluate the probability of errors of transmission (BER) as a function of the Signal-to-Noise Ratio (SNR). Our antennas show promising results in the implementation of a digital communication in indoor environment. In the second part of the thesis, in order to transmit data to a receiver, we have exploited ambient electromagnetic waves as sources of opportunity. This new digital communication technique is based on a backscatter capable of switching between different states of impedence and thus modulating the ambient electric field. These networks are subject to deep fadings. In particular, it is shown that the interference pattern between a wave source, a backscatter and a receiver strongly depends on their location in space. We estimate the BER of backscatter communication and demonstrate that it depends on the power of contrast estimated by the receiver. At the end of the manuscript, possible search axes are given to improve the sensitivity of the receiver towards the backscatter and to increase the data rate of this digital communication
Zaraneh, Nabil. "Exploitation d'un réseau d'énergie électrique modulé en largeur d'impulsions pour la transmission de données par courant porteur en ligne : modélisation, simulation et expérimentation." Thesis, Nantes, 2017. http://www.theses.fr/2017NANT4092/document.
Full textPulse Width Modulated (PWM) networks are used in adjustable-speed drive applications. Data like, speed and rotor position, coming from sensors on the motor, are necessary for the control. Other data like, temperature and current value are important for monitoring purposes. Using Power Line Communication (PLC) techniques to transfer data from those sensors to the control has some numerous benefits. The most obvious are, simplified installation and maintenance, increase of reliability and reduction of cost. Unfortunately, PLC modems used in low-voltage sinusoidal network are not compatible with this type of application. In fact, the PLC signal suffers from power cables attenuation. In addition, the PWM voltage can generate high level noise in the bandwidth used by traditional PLC modems. Therefore, a specific PLC solution is needed in this type of applications. To find an optimized solution, the motor, the inverter as well as the cables (10, 60 and 110 meters) are modeled by a chain matrix. The transfer function calculated from the model is verified by measurements. Afterward, the PWM voltage is measured and characterized. Using the transfer function in addition to the PWM measurements, the Channel to Noise Ratio (CNR) is calculated. The CNR provides the best two center frequencies for PLC couplers. For each frequency, a couple of couplers (Tx, Rx) of 10MHz width is made. A communication simulator is made using channel model and noise (PWM) measurements. In addition, the test bench is upgraded with a QAM modem. A wide comparison is made between results (output power, bit rate and BER) obtained from the test bench and from simulations
Mawawa, Gabriel. "Étude du transport des charges dans le silicium amorphe hydrogéné à l'aide d'une technique de photoconductivité modulée à deux faisceaux." Paris 11, 1988. http://www.theses.fr/1988PA112303.
Full textDavis, Daniel Robert. "Modulation of neuronal tau phosphorylation." Thesis, King's College London (University of London), 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.299450.
Full textXie, Meiling. "Indoor radio propagation modeling for system performance prediction." Thesis, Lyon, INSA, 2013. http://www.theses.fr/2013ISAL0074/document.
Full textThis thesis aims at proposing all the possible enhancements for the Multi-Resolution Frequency-Domain ParFlow (MR-FDPF) model. As a deterministic radio propagation model, the MR-FDPF model possesses the property of a high level of accuracy, but it also suffers from some common limitations of deterministic models. For instance, realistic radio channels are not deterministic but a kind of random processes due to, e.g. moving people or moving objects, thus they can not be completely described by a purely deterministic model. In this thesis, a semi-deterministic model is proposed based on the deterministic MR-FDPF model which introduces a stochastic part to take into account the randomness of realistic radio channels. The deterministic part of the semi-deterministic model is the mean path loss, and the stochastic part comes from the shadow fading and the small scale fading. Besides, many radio propagation simulators provide only the mean power predictions. However, only mean power is not enough to fully describe the behavior of radio channels. It has been shown that fading has also an important impact on the radio system performance. Thus, a fine radio propagation simulator should also be able to provide the fading information, and then an accurate Bit Error Rate (BER) prediction can be achieved. In this thesis, the fading information is extracted based on the MR-FDPF model and then a realistic BER is predicted. Finally, the realistic prediction of the BER allows the implementation of the adaptive modulation scheme. This has been done in the thesis for three systems, the Single-Input Single-Output (SISO) systems, the Maximum Ratio Combining (MRC) diversity systems and the wideband Orthogonal Frequency-Division Multiplexing (OFDM) systems
Karras, Stephanie. "Modulation der Tau-Aggregation durch Modifikation der Cystein-Reste im Tau-Protein." Doctoral thesis, Universitätsbibliothek Leipzig, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-219737.
Full textBooks on the topic "Taux de modulation"
Mexico. Telecommunications, frequency modulating broadcasting: Agreement between the United States of America and Mexico amending the agreement of November 9, 1972, as amended, effected by exchange of notes signed at Washington September 7, 1984, February 28, March 21 and May 14, 1985. Washington, D.C: Dept. of State, 1993.
Find full textMexico. Telecommunications, frequency modulating broadcasting: Agreements between the United States of America and Mexico amending the agreement of November 9, 1972, as amended, effected by exchange of notes signed at Mexico and Tlatelolco July 6 and September 10, 1984, and exchange of notes signed at Mexico and Tlatelolco November 6 and December 7, 1984. Washington, D.C: Dept. of State, 1992.
Find full textMexico. Tax convention with Mexico: Message from the President of the United States transmitting the convention between the government of the United States of America and the government of the United Mexican States for the avoidance of double taxation and the prevention of fiscal evasion with respect to taxes on income, together with a related protocol, signed at Washington on September 18, 1992. Washington: U.S. G.P.O., 1993.
Find full textMexico. Narcotic drugs, additional cooperative arrangements to curb illegal traffic: Agreements between the United States of America and Mexico, amending the agreement of March 29, 1983, as amended, effected by exchange of letters signed at Mexico March 16 and April 14, 1987. Washington, D.C: Dept. of State, 1993.
Find full textMexico. Narcotic drugs, additional cooperative arrangements to curb illegal traffic: Agreement between the United States of America and Mexico, amending the agreement of March 29, 1983, as amended, effected by exchange of letters signed at Mexico September 27 and 30, 1986. Washington, D.C: Dept. of State, 1996.
Find full textMexico. Scientific and technical cooperation: Earth sciences : memorandum of understanding between the United States of America and Mexico, signed at Mexico May 9, 1994. Washington, D.C: Dept. of State, 1996.
Find full textMexico. Narcotic drugs, additional cooperative arrangements to curb illegal traffic: Agreement between the United States of America and Mexico, amending the agreement of September 25 and October 10, 1984, as amended, effected by exchange of letters signed at Mexico July 24 and August 20, 1985. Washington, D.C: Dept. of State, 1993.
Find full textMexico. Educational and cultural commission: Agreement between the United States of America and Mexico, signed at Monterrey November 27, 1990 with memorandum of understanding. Washington, D.C: Dept. of State, 1993.
Find full textMexico. Environmental cooperation: Annexes to the agreement of August 14, 1983, between the United States of America and Mexico, signed at San Diego July 18, 1985, and signed at San Diego July 18, 1985, and signed at Washington November 12, 1986, and signed at Washington January 29, 1987, and signed at Washington October 3, 1989. Washington, D.C: Dept. of State, 1992.
Find full textMexico. Boundary waters: Sanitation problems : minute no. 274 of the International Boundary and Water Commission, United States of America and Mexico, signed at Ciudad Juarez April 15, 1987, with joint report. Washington, D.C: Dept. of State, 1992.
Find full textBook chapters on the topic "Taux de modulation"
Hashiguchi, Mitsuko, and Toshio Hashiguchi. "Kinase–Kinase Interaction and Modulation of Tau Phosphorylation." In International Review of Cell and Molecular Biology, 121–60. Elsevier, 2013. http://dx.doi.org/10.1016/b978-0-12-405210-9.00004-7.
Full text"Neurogenic Molecules Modulating Cell Survival Pathways, Amyloid Beta, Tau Proteins, and Metal Dyshomeostasis: An Alternative Hope for Alzheimer’s Therapy." In Frontiers in Clinical Drug Research – Alzheimer Disorders, edited by Hailin Zheng, Mati Fridkin, and Moussa B.H. Youdim, 243–64. BENTHAM SCIENCE PUBLISHERS, 2013. http://dx.doi.org/10.2174/9781608057221113010009.
Full textConference papers on the topic "Taux de modulation"
Melka, A. C. "Retentissement sur l’état bucco-dentaire et la qualité de vie des patients avec un cancer de la cavité buccale ou de l’oropharynx traits par radiothérapie conformationnelle tridimensionnelle versus avec modulation d’intensité : à propos de 52 cas." In 66ème Congrès de la SFCO. Les Ulis, France: EDP Sciences, 2020. http://dx.doi.org/10.1051/sfco/20206603012.
Full textXi, Yue, Huaqiang Wu, Bin Gao, Xinyi Li, Wei Wu, Dong Wu, Ning Deng, and He Qian. "Ta0x/Hf02-based RRAM with self-selective feature caused by current compliance modulation." In 2018 International Symposium on VLSI Technology, Systems and Application (VLSI-TSA). IEEE, 2018. http://dx.doi.org/10.1109/vlsi-tsa.2018.8403839.
Full text