Academic literature on the topic 'MHD'

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Journal articles on the topic "MHD"

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Mogi, Iwao, Ryoichi Morimoto, Ryoichi Aogaki, and Kohki Takahashi. "Effects of Vertical Magnetohydrodynamic Flows on Chiral Surface Formation in Magnetoelectrolysis." Magnetochemistry 4, no. 3 (September 6, 2018): 40. http://dx.doi.org/10.3390/magnetochemistry4030040.

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Magnetoelectrolysis (electrolysis in magnetic fields) has potential to produce chiral surfaces on metal films. The Lorentz force causes two types of magnetohydrodynamic (MHD) flows; a vertical MHD flow and micro-MHD vortices, and the combination of these MHD flows has been considered to produce chiral surfaces. This paper shows the effects of vertical MHD flow on the chiral surface formation in magnetoelectrodeposition (MED) and magnetoelectrochemical etching (MEE) of copper films. To control the vertical MHD flows the working electrode was embedded in a tube wall with various heights of 2–12 mm, and the vertical MHD flows were expected to penetrate into the tubes with damping. In both MED and MEE experiments, the surface chirality diminished considerably at the wall height of 12 mm. When the penetrating MHD flow could not reach the electrode surface in the sufficiently tall wall, such an MHD flow could not affect the micro-MHD vortices. These results demonstrate that the vertical MHD flow plays a significant role in symmetry breaking of micro-MHD vortices.
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Dewar, R. L., R. Mills, and M. J. Hole. "MHD memes." Journal of Physics: Conference Series 169 (May 1, 2009): 012004. http://dx.doi.org/10.1088/1742-6596/169/1/012004.

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Fasoli, A., D. Testa, S. Sharapov, H. L. Berk, B. Breizman, A. Gondhalekar, R. F. Heeter, M. Mantsinen, and contributors to the EFDA-JET Workprogramme. "MHD spectroscopy." Plasma Physics and Controlled Fusion 44, no. 12B (November 20, 2002): B159—B172. http://dx.doi.org/10.1088/0741-3335/44/12b/312.

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Goldreich, Peter. "MHD turbulence." Scholarpedia 4, no. 2 (2009): 2350. http://dx.doi.org/10.4249/scholarpedia.2350.

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Priest, Eric. "MHD reconnection." Scholarpedia 6, no. 2 (2011): 2371. http://dx.doi.org/10.4249/scholarpedia.2371.

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Dobler, Wolfgang, Oskar Steiner, and Michael Stix. "MHD Day." Astronomische Nachrichten 324, S3 (July 2003): 63–79. http://dx.doi.org/10.1002/asna.200385019.

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Rabbia, V., G. De Palma, J. Lu, E. Verdu, S. M. Collins, R. Anglin, M. Surette, and P. Bercik. "A261 MICROBIOTA PROFILES OF PATIENTS WITH MENTAL DISODERS DIFFER FROM THOSE OF HEALTHY CONTROLS." Journal of the Canadian Association of Gastroenterology 3, Supplement_1 (February 2020): 138–39. http://dx.doi.org/10.1093/jcag/gwz047.260.

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Abstract Background Mental disorders are the leading cause of disabilities worldwide, with depression and anxiety among the most common ones, affecting up to 1/3 of the worldwide population at least once in their lifetime. In both preclinical models and clinical studies, gut microbiota has been associated with altered behavior and anxiety or depression, respectively. Aims To investigate 1) whether the microbial profiles of patients with generalized anxiety disorder (GAD) and major depression disorder (MDD) differ from those of healthy controls (HC), and 2) whether specific bacterial taxa associate with GAD or MDD. Methods 118 patients with primary GAD (n=82, 83.3 % female) or MDD (n=36, 62.9 % female) and 99 matched HC (66.6 % female) were recruited through the Anxiety Treatment and Research Centre. Anxiety, depression and stress levels were assessed by DASS-21 questionnaire. Stool samples were collected anaerobically and analysed for 16S rRNA gene sequencing through Illumina technique. The data was divided in 4 groups: 1) mental health disorder (MHD) combining GAD and MDD, 2) GAD, 3) MDD, and 4) HC. The data was analyzed following the pipelines of dada2 and QIIME2. RandomForest plugin for QIIME2 was used to investigate predictive characteristics of MHD, GAD or MDD microbiota. SPSS software v.23 was used to perform Spearman correlations and logistic regressions between microbial taxa and clinical scores. Results The mean anxiety score was 16.2 (severe anxiety) for GAD patients and 9.8 (moderate anxiety) for MDD patients; the mean depression score was 19.2 (moderate depression) for MDD patients and 16.0 (moderate depression) for GAD patients, while healthy controls averaged only 1.5 (normal anxiety) and 1.7 (normal depression) for anxiety and depression, respectively. The microbiota profile of the MHD group was predictive of the patients’ disease state with an 83.3% accuracy. In particular, increased relative abundance of Bacteroides ovatus and Bacteroides spp. and decreased relative abundance of Dialister spp. (Veilonellaceae), Haemophilus parainfluenzae and Bifidobacterium adolescentis, were predictive of MHD. Neither the GAD or MDD group microbiota profiles alone were accurate in the prediction of the patients’ disease state. There was a positive correlation between the relative abundance of Bacteroides spp. and a negative correlation between the relative abundance of Clostridium sensu stricto spp. and Sutterella, and the clinical scores of combined MDH and HC groups. Conclusions Our data suggest that patients with mental health disorders have different microbiota profiles compared to healthy controls. We have identified specific bacterial signatures that will inform mechanistic studies in gnotobiotic mouse models to investigate further the role of microbiome in mental disorders. Funding Agencies NIH
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Mogi, Iwao, Ryoichi Aogaki, and Kohki Takahashi. "Breaking of Odd Chirality in Magnetoelectrodeposition of Copper Films on Micro-Electrodes." Magnetochemistry 7, no. 11 (October 27, 2021): 142. http://dx.doi.org/10.3390/magnetochemistry7110142.

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The surface chirality was investigated in magnetoelectrodeposition (MED) of copper films on micro-disc electrodes with the diameters of 100 and 25 µm. The MED was conducted in the magnetic fields of 1–5 T, which were parallel or antiparallel to the ionic currents. In the case of 100 µm-electrodes, the MED films prepared in 2 and 3 T exhibited odd chirality for the magnetic field polarity, as expected in the magnetohydrodynamic (MHD) vortex model. However, the films prepared in the higher fields of 4 and 5 T exhibited breaking of odd chirality. In the case of the 25 µm-electrode, the broken odd chirality was observed in 2 and 3 T. These results indicate that the strong vertical MHD flows induce the breaking of odd chirality. The mapping of chiral symmetry on the axes of the magnetic field and electrode diameter demonstrate that the odd chirality could be easily broken by the fluctuation of micro-MHD vortices.
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Meier, Eric, Weston Lowrie, George Marklin, and Uri Shumlak. "Developing and Benchmarking MH4D, A Tetrahedral Mesh MHD Code." Journal of Fusion Energy 27, no. 1-2 (July 18, 2007): 69–72. http://dx.doi.org/10.1007/s10894-007-9115-0.

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Tarafder, Palash, Md Ayub Ali Choudhury, Md Babrul Alam, Tofael Ahammod, and Pritish Tarafder. "Implication of serum hepcidin level in maintainance haemodialysis patients in association with different iron indices." Bangladesh Medical Journal Khulna 54, no. 1-2 (July 18, 2022): 21–25. http://dx.doi.org/10.3329/bmjk.v54i1-2.60781.

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Background: Anaemia is a frequent complication in maintenance hemodialysis (MHD) patients and is associated with increased morbidity and mortality. Altered systemic iron metabolism and functional iron deficiency mainly related to subclinical inflammation makes it difficult to maintain proper control of anaemia. The discovery of hepcidin and it's functions has contributed to a better understanding of iron metabolism disorders in CKD anaemia. Objective: To evaluate the association of serum hepcidin with different iron indices (serum iron, serum ferritin, TIBC and TSAT). Materials and Methods: The study was carried out in the Institute of Kidney Diseases and Urology, Dhaka for a period of six months between July to December 2016. Serum hepcidin-25, current iron markers and other laboratory parameters were measured among study subjects. Absolute and functional iron deficiency patients were identified according to serum ferritin and TSAT. Statistical analysis was performed to find out whether serum hepcidin level significantly differ in MHD patients than healthy controls and also to evaluate it's correlation with other iron indices among MHD patients. Results: Total 88 subjects (fifty MHD patients and thirty eight healthy controls) were enrolled into the study. Serum hepcidin level was significantly higher in MHD patients than healthy controls (19.3 (7.0 - 81.8) ng/ml vs 8.0 (2.4 - 33.6) ng/ml, P value <0.001). Hepcidin has significant positive correlation with ferritin in MHD patients (r=0.480; p=<0.001). Hepcidin was also positively correlated with serum ferritin both in absolute iron deficiency patients (r=0.786; p=0.036) and functional iron deficiency patients (r=0.764; p=0.006). Conclusion: Serum hepcidin level is increased in MHD patients and associated with disturbance of iron metabolism. Hepcidin positively correlates with serum ferritin in MHD patients and may be used similarly as ferritin in guiding iron therapy. Bang Med J Khulna 2021; 54 : 21-25
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Dissertations / Theses on the topic "MHD"

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Paulovčák, Ján. "Sledování pohybu v MHD." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2017. http://www.nusl.cz/ntk/nusl-363878.

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This master’s thesis is dedicated to user’s movement tracking in public transport, as well as to optimize route planning. In the first part, author presents information related to graph theory and graph theory algorithms, including Breadth-First Search, Djikstra’s algorithm and A*. In the second part of this thesis, author describes the design of server and mobile application including description of routing process and how individual parts works.
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Jírová, Viktorie. "Netradiční systém MHD - TVR." Master's thesis, Vysoká škola ekonomická v Praze, 2010. http://www.nusl.cz/ntk/nusl-75363.

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This Master's Thesis deals with unconventional systems od public transport - TVR. The first part describes the theoretical foundation for the installation and functioning the public transport counting the technical requirements. The second part deals with unconventional systems, so called Tramways on tyres, which is run by two models - system Translohr and TVR. The Master's Thesis is focused on the economical and technical evaluation of each types of the public transport, mainly of the TVR, which is operated only in two cities over the world.
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Kriške, Petr. "Anamorfní mapy v MHD." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2013. http://www.nusl.cz/ntk/nusl-226227.

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This diploma thesis is focused on creating schematic maps and their using in public transport system. It describes methods of making and individual variations of these maps. Further, the thesis is trying to evaluate and classify the available czech and world cartographic works with this content. Based on this analysis are proposed the new alternative solutions of schematic map in public transport in Nový Jičín.
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GIANTESIO, Giulia. "MHD stagnation-point flow." Doctoral thesis, Università degli studi di Ferrara, 2013. http://hdl.handle.net/11392/2388856.

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The flow near a stagnation-point is a fundamental topic in fluid dynamics and it has been studied by several researches during the past decades because of its relevant applications. In this Thesis we investigate the influence of the electromagnetic field on the stagnation-point flow of a Newtonian or a micropolar fluid. To this end we consider three types of such a motion: plane orthogonal, plane oblique and three-dimensional. We take into consideration a fluid which moves towards a flat surface. We descrive several situations which are relevant from a physical point of view when an external uniform or not uniform electromagnetic field is impressed. Actually, we have prove that if the external magnetic field is uniform and the induced magnetic field is neglected, then the stagnation-point flow exists if, and only, if the external magnetic field has some suitable directions. Further, we compute the induced magnetic field in the other cases. We prove also that if the external magnetic field is not uniform and it is parallel to the velocity at infinity then the three-dimensional stagnation-point flow is possible if and only if it is axisymmetric. In all the cases here considered, the MHD PDEs which govern the motion are reduced to a system of nonlinear ODEs. These boundary values problems are then integrated numerically and some graphics and tables are furnished in order to show the behaviour of the solution near the obstacle.
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Cerfon, Antoine Julien. "Analytic calculations of MHD equilibria and of MHD stability boundaries in fusion plasmas." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/76494.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Nuclear Science and Engineering, 2010.
Cataloged from PDF version of thesis.
Includes bibliographical references.
In this work, two separate aspects of ideal MHD theory are considered. In the first part, analytic solutions to the Grad-Shafranov equation (GSE) are presented, for two families of source functions: functions which are linear in the flux function T , and functions which are quadratic in T. The solutions are both simple and very versatile, since they describe equilibria in standard tokamaks, spherical tokamaks, spheromaks, and field reversed configurations. They allow arbitrary aspect ratio, elongation, and triangularity as well as a plasma surface that can be smooth or possess a double or single null divertor X-point. The solutions can also be used to evaluate the equilibrium beta limit in a tokamak and spherical tokamak in which a separatrix moves onto the inner surface of the plasma. In the second part, the reliability of the ideal MHD energy principle in fusion grade plasmas is assessed. Six models are introduced, which are constructed to better describe plasma collisonality regimes for which the approximations of ideal MHD are not justified. General 3-D quadratic energy relations are derived for each of these six models, and compared with the ideal MHD energy principle. Stability comparison theorems are presented. The main conclusion can be summarized in two points. (1) In systems with ergodic magnetic field lines, ideal MHD accurately predicts marginal stability, even in fusion grade plasmas. (2) In closed field line geometries, however, the ideal MHD predictions must be modified. Indeed, it is found that in collisionless plasmas, the marginal stability condition for MHD modes is inherently incompressible for ion distribution functions that depend only on total energy. The absence of compressibility stabilization is then due to wave particle resonances. An illustration of the vanishing of plasma compressibility stabilization in closed line systems is given by studying the particular case of the hard-core Z-pinch.
by Antoine Julien Cerfon.
Ph.D.
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Trophime, Christophe. "Modélisation numérique du couplage magnétohydrodynamique (MHD) fort : application à la propulsion MHD navale." Grenoble INPG, 1995. https://hal.archives-ouvertes.fr/tel-01340645.

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Nous présentons un code numérique 3D de simulation des phénomènes magnétohydrodynamiques. Le problème électromagnétique est traité par la méthode des éléments finis. Les équations de Navier-Stokes pour les fluides incompressibles en régime permanent sont résolues à l’aide de la méthode des Volumes Finis. Le couplage de ces deux méthodes est réalisé par des procédures d’interpolation pour le calcul des forces de Laplace et du champ de vitesse. Le code est appliqué à différents problèmes M. H. D. Ces exemples permettent de valider et de mettre en évidence les situations de couplage M. H. D. Traitées par notre programme. Enfin la modélisation de la propulsion navale M. H. D. Est abordée. Elle concerne à la fois les systèmes à conduction et à induction. Une attention particulière est portée au couplage entre l’écoulement et les forces électromagnétiques dans les deux cas
We present a 3D numerical simulation code for MHD phenomena. The electromagnetic problem is treated by the finite element method. Navier-Stokes equations for incompressible fluid in steady state are solved using the Finite Volumes method. The coupling of these two methods is performed by interpolation procedures for calculating the Laplace forces and the velocity field. The code is applied to different MHD problems. These examples validate and highlight coupling MHD situations, processed by our program. Finally the modeling of naval MHD propulsion is discussed. It relates to both systems conduction and induction. Particular attention is paid to the coupling between flow and electromagnetic forces in both cases
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Gerbeth, Gunter, Willi Witke, Horst Langenbrunner, and Sven Eckert. "MHD Turbulence: Use of gas bubbles as local tracers in Liquid Metal MHD Flows." Forschungszentrum Dresden, 2010. http://nbn-resolving.de/urn:nbn:de:bsz:d120-qucosa-32058.

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Gerbeth, Gunter, Willi Witke, Horst Langenbrunner, and Sven Eckert. "MHD Turbulence: Use of gas bubbles as local tracers in Liquid Metal MHD Flows." Forschungszentrum Rossendorf, 1995. https://hzdr.qucosa.de/id/qucosa%3A22032.

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Taylor, Matthew Graham George Thaddeus. "MHD modelling of space plasmas." Thesis, Imperial College London, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.342232.

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Tam, Kuan V. "MHD simulations of coronal heating." Thesis, University of St Andrews, 2014. http://hdl.handle.net/10023/6373.

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The problem of heating the solar corona requires the conversion of magnetic energy into thermal energy. Presently, there are two promising mechanisms for heating the solar corona: wave heating and nanoflare heating. In this thesis, we consider nanoflare heating only. Previous modelling has shown that the kink instability can trigger energy release and heating in large scale loops, as the field rapidly relaxes to a lower energy state under the Taylor relaxation theory. Two distinct experiments were developed to understand the coronal heating problem: the avalanche effect within a multiple loop system, and the importance of thermal conduction and optically thin radiation during the evolution of the kinked-unstable coronal magnetic field. The first experiment showed that a kink-unstable thread can also destabilise nearby threads under some conditions. The second experiment showed that the inclusion of thermal conduction and optically thin radiation causes significant change to the internal energy of the coronal loop. After the initial instability occurs, there is continual heating throughout the relaxation process. Our simulation results show that the data is consistent with observation values, and the relaxation process can take over 200 seconds to reach the final relaxed state. The inclusion of both effects perhaps provides a more realistic and rapid heating experiment compared to previous investigations.
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Books on the topic "MHD"

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A, Kirillin V., and Sheĭndlin Aleksandr Efimovich, eds. MHD energy conversion ; physiotechnical problems. New York, N.Y: American Institute of Aeronautics and Astronautics, 1986.

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Passot, Thierry, and Pierre-Louis Sulem, eds. Nonlinear MHD Waves and Turbulence. Berlin, Heidelberg: Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/3-540-47038-7.

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Gizon, Laurent, Paul Cally, and John Leibacher, eds. Helioseismology, Asteroseismology, and MHD Connections. New York, NY: Springer New York, 2008. http://dx.doi.org/10.1007/978-0-387-89482-9.

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United States. Dept. of Energy. Deputy Assistant Secretary for Oil, Gas, Shale, and Special Technologies, ed. MHD program plan, FY 1990. Washington, D.C: U.S. Dept. of Energy, Assistant Secretary for Fossil Energy, Deputy Assistant Secretary for Oil, Gas, Shale and Special Technologies, 1989.

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Beskin, Vasily S. MHD Flows in Compact Astrophysical Objects. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-01290-7.

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Chris, Lashmore-Davies, ed. MHD and microinstabilities in confined plasma. Bristol, England: Published under A. Hilger imprint by IOP Pub., 1989.

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T, Suess Steven, and United States. National Aeronautics and Space Administration., eds. A two-fluid, MHD coronal model. [Washington, DC: National Aeronautics and Space Administration, 1998.

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T, Suess Steven, and United States. National Aeronautics and Space Administration., eds. A two-fluid, MHD coronal model. [Washington, DC: National Aeronautics and Space Administration, 1998.

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T, Suess Steven, and United States. National Aeronautics and Space Administration., eds. A two-fluid, MHD coronal model. [Washington, DC: National Aeronautics and Space Administration, 1998.

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Hirose, Akira. Resistive MHD ballooning mode in tokamaks. Saskatoon, Sask: University of Saskatchewan, Plasma Physics Laboratory, 1987.

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Book chapters on the topic "MHD"

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Webb, Gary. "MHD Stability." In Magnetohydrodynamics and Fluid Dynamics: Action Principles and Conservation Laws, 229–53. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-72511-6_12.

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Hosking, Roger J., and Robert L. Dewar. "Magnetohydrodynamics (MHD)." In Fundamental Fluid Mechanics and Magnetohydrodynamics, 157–201. Singapore: Springer Singapore, 2015. http://dx.doi.org/10.1007/978-981-287-600-3_5.

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Hood, A. W. "MHD Instabilities." In Solar System Magnetic Fields, 80–120. Dordrecht: Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5482-3_4.

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Chiuderi, Claudio, and Marco Velli. "MHD Turbulence." In UNITEXT for Physics, 229–45. Milano: Springer Milan, 2014. http://dx.doi.org/10.1007/978-88-470-5280-2_10.

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Rozhansky, Vladimir. "Magnetohydrodynamics (MHD)." In Plasma Theory, 205–27. Cham: Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-44486-9_10.

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Kikuchi, Mitsuru, and Masafumi Azumi. "MHD Stability." In Frontiers in Fusion Research II, 229–99. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-18905-5_8.

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Schnack, Dalton D. "Reduced MHD." In Lectures in Magnetohydrodynamics, 77–83. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-00688-3_13.

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Aogaki, Ryoichi, Atsushi Tadano, and Kenji Shinohara. "MHD and Micro-MHD Effects in Electrochemical Systems." In Transfer Phenomena in Magnetohydrodynamic and Electroconducting Flows, 169–79. Dordrecht: Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-011-4764-4_12.

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Fleishman, Gregory D., and Igor N. Toptygin. "Instability of MHD Motion and Astrophysical MHD Turbulence." In Astrophysics and Space Science Library, 217–72. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4614-5782-4_6.

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Shibata, Kazunari. "Computational MHD Jets." In Galactic and Intergalactic Magnetic Fields, 419–24. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-0569-6_132.

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Conference papers on the topic "MHD"

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Mamashita, Tomohiro, Keiichi Kitamura, and Takashi Minoshima. "SLAU2-MHD for Low Mach Magnetohydrodynamics (MHD) Simulations." In AIAA AVIATION 2021 FORUM. Reston, Virginia: American Institute of Aeronautics and Astronautics, 2021. http://dx.doi.org/10.2514/6.2021-2730.

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Schmidt, H. J. "Pulsed MHD Generators." In 22nd Intersociety Energy Conversion Engineering Conference. Reston, Virginia: American Institute of Aeronautics and Astronautics, 1987. http://dx.doi.org/10.2514/6.1987-9369.

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Ng, C. S., and A. Bhattacharjee. "Anisotropic MHD turbulence." In TURBULENCE AND NONLINEAR PROCESSES IN ASTROPHYSICAL PLASMAS; 6th Annual International Astrophysics Conference. AIP, 2007. http://dx.doi.org/10.1063/1.2778956.

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Ballester, J. L. "MHD Coronal Seismology." In FIFTY YEARS OF ROMANIAN ASTROPHYSICS. AIP, 2007. http://dx.doi.org/10.1063/1.2720411.

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LEBEDEV, E. F., V. E. OSTASHEV, and V. E. FORTOV. "EXPLOSIVE MHD GENERATORS." In Proceedings of the VIIIth International Conference on Megagauss Magnetic Field Generation and Related Topics. WORLD SCIENTIFIC, 2004. http://dx.doi.org/10.1142/9789812702517_0096.

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Kuranov, A., V. Kuchinsky, and E. Sheikin. "Scramjet with MHD control under "Ajax" concept - Requirements for MHD systems." In 32nd AIAA Plasmadynamics and Lasers Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2001. http://dx.doi.org/10.2514/6.2001-2881.

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Chambers, Harold, and William Owens. "Applying MHD Power Generation Electrode Studies to an Advanced MHD Accelerator." In 33rd Plasmadynamics and Lasers Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2002. http://dx.doi.org/10.2514/6.2002-2188.

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Ishikawa, M., K. Tamai, K. Tateishi, J. Umoto, V. Bityurin, M. Ishikawa, K. Tamai, K. Tateishi, J. Umoto, and V. Bityurin. "Three-dimensional behavior of MHD plasma near electrode of MHD generator." In 28th Plasmadynamics and Lasers Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1997. http://dx.doi.org/10.2514/6.1997-2373.

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Suekane, T., T. Maeda, Y. Okuno, S. Kabashima, T. Suekane, T. Maeda, Y. Okuno, and S. Kabashima. "Numerical simulation on MHD flow in disk closed cycle MHD generator." In 28th Plasmadynamics and Lasers Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1997. http://dx.doi.org/10.2514/6.1997-2396.

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Xisto, Carlos M., José C. Páscoa, and Paulo J. Oliveira. "Numerical Modelling of Electrode Geometry Effects on a 2D Self-Field MPD Thruster." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-63144.

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A self-field MPD thruster in its most basic form consists in a central cathode surrounded by a concentric anode. With this coaxial geometric shape is very difficult to use experimental techniques to visualize the plasma flow parameters. In the following paper a previously proposed numerical method for the ideal magnetohydrodynamics (MHD) equations is extended to deal with resistive MHD viscous flow. The numerical method is based on the well known PISO algorithm and makes use of the AUSM-MHD scheme for flux calculation. For validation three test cases will be addressed. We start with a resistive MHD problem, namely the Shercliff test case. The second and third test cases are standard 2D ideal MHD problems, these will be used to validate our method for complex interaction of MHD shocks. We will close this paper with some preliminary results for a quasi-bi-dimensional self-field magnetoplasmadynamic (MPD) thruster, where the effects of cathode length in the performance of the nozzle are analysed.
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Reports on the topic "MHD"

1

Bityurin, Valentin A. MHD Flow Control. Fort Belvoir, VA: Defense Technical Information Center, September 2006. http://dx.doi.org/10.21236/ada473536.

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2

Rousculp, Christopher L. MHD For NRL Visit. Office of Scientific and Technical Information (OSTI), August 2017. http://dx.doi.org/10.2172/1377387.

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3

Garasi, Christopher Joseph, Thomas A. Haill, and Allen Conrad Robinson. ALEGRA-MHD : Version 4.0. Office of Scientific and Technical Information (OSTI), November 2003. http://dx.doi.org/10.2172/918373.

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Garasi, Christopher Joseph, Kyle Robert Cochrane, Thomas Alan Mehlhorn, Thomas A. Haill, Randall M. Summers, and Allen Conrad Robinson. ALEGRA-MHD : version 4.6. Office of Scientific and Technical Information (OSTI), January 2005. http://dx.doi.org/10.2172/920811.

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Johnson, J. L. MHD computations for stellarators. Office of Scientific and Technical Information (OSTI), December 1985. http://dx.doi.org/10.2172/6027879.

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Callen, J. D. Nonlinear and Nonideal MHD. Office of Scientific and Technical Information (OSTI), November 2002. http://dx.doi.org/10.2172/836270.

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Charlton, L. (MHD calculations in tokamaks). Office of Scientific and Technical Information (OSTI), July 1987. http://dx.doi.org/10.2172/5663818.

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Forest, C. B. An Experimental MHD Dynamo. Office of Scientific and Technical Information (OSTI), November 2002. http://dx.doi.org/10.2172/824454.

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Kruger, S. E., C. C. Hegna, and J. D. Callen. Generalized reduced MHD equations. Office of Scientific and Technical Information (OSTI), July 1998. http://dx.doi.org/10.2172/666028.

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Park, W., Z. Chang, E. Fredrickson, G. Y. Fu, N. Pomphrey, H. R. Strauss, and L. E. Sugiyama. 3D simulation studies of tokamak plasmas using MHD and extended-MHD models. Office of Scientific and Technical Information (OSTI), January 1997. http://dx.doi.org/10.2172/304170.

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