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Renshaw, Matthew Peter. "Magnetic resonance studies at elevated temperature and pressure". Thesis, University of Cambridge, 2015. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.709303.
Pełny tekst źródłaGhannadzadeh, Saman. "Investigating magnetism and superconductivity using high magnetic fields". Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:4b78618e-89a3-424e-a673-59d363a2605d.
Pełny tekst źródłaWensley, Joanne Ruth. "High pressure studies on magnetic metals near quantum critical points". Thesis, University of Cambridge, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.609926.
Pełny tekst źródłaFurukawa, Masaru. "Localized pressure-driven MHD instabilities in reversed-magnetic-shear tokamaks". Kyoto University, 2001. http://hdl.handle.net/2433/150492.
Pełny tekst źródła0048
新制・課程博士
博士(エネルギー科学)
甲第9045号
エネ博第32号
新制||エネ||9(附属図書館)
UT51-2001-F375
京都大学大学院エネルギー科学研究科エネルギー基礎科学専攻
(主査)教授 若谷 誠宏, 教授 近藤 克己, 教授 佐野 史道
学位規則第4条第1項該当
Blaauw, Leopold V. "X-ray Scattering and Absorption and High Pressure Magnetisation Studies of 3d Transition Metal Magnetic Compounds and the Development of High Pressure Magnetic Compton Scattering". Thesis, University of Warwick, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.490685.
Pełny tekst źródłaMcNally, Graham Michael. "High pressure synthesis and neutron diffraction studies of new magnetic manganites". Thesis, University of Edinburgh, 2018. http://hdl.handle.net/1842/31185.
Pełny tekst źródłaSokolov, Dmitriy A. "Effect of pressure on transport and magnetic properties of layered manganites". Thesis, University of Edinburgh, 2002. http://hdl.handle.net/1842/14442.
Pełny tekst źródłaRochette, P., G. Fillion, R. Ballou, F. Brunet, B. Ouladdiaf i L. Hood. "High pressure magnetic transition in pyrrhotite and impact demagnetization on Mars". AMER GEOPHYSICAL UNION, 2003. http://hdl.handle.net/10150/623401.
Pełny tekst źródłaPrescimone, Alessandro. "Effect of high-pressure on molecular magnetism". Thesis, University of Edinburgh, 2010. http://hdl.handle.net/1842/4619.
Pełny tekst źródłaLenfeldt, Niklas. "The search for reversibility of idiopathic normal pressure hydrocephalus : aspects on intracranial pressure measurements and advanced MRI techniques in combination with CSF volume alteration /". Umeå : Univ, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-1422.
Pełny tekst źródłaMaude, D. K. "Investigation of advanced semiconductor materials using high pressure and high magnetic fields". Thesis, University of Nottingham, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.381086.
Pełny tekst źródłaFoster, Timothy John. "High pressure and high magnetic field studies of low dimensional semiconductor structures". Thesis, University of Nottingham, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.315090.
Pełny tekst źródłaWeissner, Stefan. "Numerical and experimental investigation of the load/unload behavior of subambient pressure hard disk drive sliders /". Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2001. http://wwwlib.umi.com/cr/ucsd/fullcit?p3027050.
Pełny tekst źródłaMeier, Thomas. "High Sensitivity Nuclear Magnetic Resonance at Extreme Pressures". Doctoral thesis, Universitätsbibliothek Leipzig, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-203643.
Pełny tekst źródłaBloom, Scott Harris. "Superconducting and normal compounds : some high field/high pressure effects /". Thesis, Connect to Dissertations & Theses @ Tufts University, 1989.
Znajdź pełny tekst źródłaSubmitted to the Dept. of Physics. Includes bibliographical references (leaves 192-204). Access restricted to members of the Tufts University community. Also available via the World Wide Web;
DaSilva, Jack Guy. "Pressure dependent magnetic investigation of tetracyanoethylene-based molecule-based magnets and their analogues". Thesis, The University of Utah, 2013. http://pqdtopen.proquest.com/#viewpdf?dispub=3593070.
Pełny tekst źródłaSeveral metal-tetracyanoethylene (TCNE) compounds, including the [bis(pentamethylcyclopentadienyl)iron(III)][tetracyanoethylene], [FeCp*2][TCNE], family of molecule-based magnets and two cyanide based MBMs were investigated by pressure dependent DC magnetic measurements. The 0-D electron transfer salts: [FeCp*2][TCNE], ferromagnetic [FeCp*2][TCNQ] (TCNQ = 7,7,8,8-tetracyanoquinodimethane), metamagnetic [FeCp*2][TCNQ], [FeCp*2][HCBD] (HCBD = hexacyanobutadiene), and [FeCp*2][DDQ] (DDQ = 2,3-dichloro-5,6-dicyano-p-benzoquinone) exhibited an array of magnetic behavior both at ambient and applied pressure. [FeCp*2][TCNE] and [FeCp*2][HCBD] exhibited weak ferromagnetism above 4.2 and 3.1 kbar, respectively. The ferromagnetic polymorph of [FeCp*2][TCNQ] displayed linear increase to the critical temperature, Tc, and the bifurcation temperature, Tb, reaching 5.01 and 5.46 K, respectively at 10.3 kbar. The coercive field, Hcr, displayed exponential-like increase, reaching 550 Oe at 10.3 kbar. The metamagnetic polymorph of [FeCp*2][TCNQ] displayed linear increase of the Tc at low applied pressure, reaching 2.90 at 2.9 kbar, then transitioned to a paramagnetic state at further applied pressure. [FeCp*2][HCBD] transitioned from a paramagnetic state at ambient pressure to a weak ferromagnetic state at 3.1 kbar with a Tc, H cr, and Hc of 2.46 K, 25 Oe, and 2,200 Oe, respectively. The Tc and H c then increased linearly with further applied pressure to 4.80 K and 10,000 Oe, while the Hcr increased exponentially to 795 Oe, at 11.4 kbar. [FeCp*2][DDQ] exhibited paramagnetic behavior at ambient and applied pressures up to 9.2 kbar. The structurally related 2-D MnII(TCNE)I(H2O) and 3-D MnII(TCNE) 3/2(I3)1/2, showed significant increases to the Tc, Tb, and Hcr with applied pressure. A high- and low-pressure regions were observed for MnII(TCNE)I(H2O). 2-D [Ru2(O2CBu t)4][M(CN)6] · H2O (M = Fe, Cr) displayed suppression of hysteretic properties at high applied pressure and irreversibility of the suppression. A Mean Field (MF) analysis of three structurally related non-cubic Prussian blue analogues (PBA) was performed to assess the intensity of their coupling modes. These values were framed by the reinvestigation of several known cubic PBAs and comparing the coupling intensities, as well as evaluating the MF theory in the context of these structures as several had been evaluated by other means.
Giriat, Gaetan. "Instrumentation development for magnetic and structural studies under extremes of pressure and temperature". Thesis, University of Edinburgh, 2012. http://hdl.handle.net/1842/7931.
Pełny tekst źródłaAlikacem, Mohamed. "Investigation of low dimensional semiconductor structures using high pressure and high magnetic fields". Thesis, University of Nottingham, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.315113.
Pełny tekst źródłaDaniil, Dimitra. "Rock Magnetic Studies of Magnetite and Quartzite: Results at Ambient Conditions and From Diamond Anvil Pressure Experiments (~2 GPa)". Thesis, Uppsala universitet, Geofysik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-437026.
Pełny tekst źródłaMånga metoder används för att studera magnetiska egenskaper i berg, vilket ger viktig information om Jordens inre. I denna studie genomförde vi en rad experiment på två olika uppsättningar prov, innefattande ren magnetit (Set1) och en blandning av magnetit-hemoilmenit-bärande kvartsit (Set2), för att samla information om deras magnetisk susceptibilitet och magnetiska remanens. En miniatyr diamantstädcell (mDAC) konstruerad av en härdad icke-magnetisk legering (40HNU) användes för högtrycksexperiment. Susceptibilitetet av tre prover och av mDAC mättes en MFK1-FA Kappabridge, AGICO. Följaktligen monterade vi ett av proverna i mDAC och vi genomförde susceptibilitetsmätningar under kompression och dekompression. Vi använde en 2G Enterprises SQUID magnetometer för remanensmätningar. Den naturlig remanentmagnetiseringen (NRM) mättes och vi utförde alternerande fält (AF) demagnetisering på tio prover och på mDAC. Dessutom genomfördes isotermisk och anhysteretisk remanentmagnetisering (IRM och ARM) på nio respektive ett prover, och demagnetisering på tre respektive ett prover. Resultaten visade att Set1-prover består av både enkeldomän (SD) och multidomän (MD) magnetit. SD och MD magnetit- och titanomagnetitkorn är de viktigaste magnetiska mineral av Set2-prover, medan finns det indikationer på att hematit och ferrimagnetisk titanohematit också bidrar till signal. Virvelströmmar, som skapats av mDACs ledande material, maskerade provets magnetiska susceptibilitet och det var svårt att kommentera på hur provets susceptibilitet förändras med tryck. Sammantaget var instrumentens prestanda tillfredsställande, även vid små mängder material. Prov och mDACs signalstabilitet var också adekvat. Vår studie gav oss en inblick i högtrycksexperiment och magnetiska egenskaper och den visade möjliga riktningar för framtida studier.
Meißner, Thomas. "Exploring Nuclear Magnetic Resonance at the Highest Pressures". Doctoral thesis, Universitätsbibliothek Leipzig, 2013. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-115023.
Pełny tekst źródłaLarson, Blake E. "Magnetic resonance imaging based percent stenosis and pressure drop measurements in an aortic coarctation model". Thesis, Georgia Institute of Technology, 1993. http://hdl.handle.net/1853/15976.
Pełny tekst źródłaJAIN, ALOK. "A BIOPARTICLE SEPARATION TECHNIQUE THROUGH MICROCHANNELS USING SEQUENTIAL PRESSURE PULSES". University of Cincinnati / OhioLINK, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1085759166.
Pełny tekst źródłaEbbers, Tino. "Cardiovascular fluid dynamics : methods for flow and pressure field analysis from magnetic resonance imaging /". Linköping : Univ, 2001. http://www.bibl.liu.se/liupubl/disp/disp2001/tek690s.pdf.
Pełny tekst źródłaAlbrecht, Carsten. "High pressure studies of magnetic quantum phase transitions in NbFeâ‚‚ and Ca₃Ruâ‚‚O₇". Thesis, Royal Holloway, University of London, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.479376.
Pełny tekst źródłaHyunsik, I. M. "X-band related transport in GaAs/AIAs heterostructures under pressure and in magnetic fields". Thesis, University of Oxford, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.302493.
Pełny tekst źródłaPothini, Venu Madhav. "MAGNETIC RESONANCE IMAGING OF THE HUMAN INFERIOR VENA CAVA DURING LOWER BODY NEGATIVE PRESSURE". UKnowledge, 2004. http://uknowledge.uky.edu/gradschool_theses/197.
Pełny tekst źródłaSmith, Christopher Stanley. "The application of in-situ high pressure nuclear magnetic resonance spectroscopy to heterogeneous catalysis". Thesis, University of Liverpool, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.317244.
Pełny tekst źródłaMeier, Thomas, i Jürgen Haase. "Anvil cell gasket design for high pressure nuclear magnetic resonance experiments beyond 30 GPa". AIP Publishing, 2015. https://ul.qucosa.de/id/qucosa%3A21310.
Pełny tekst źródłaPressler, Rebecca E. "AN INTEGRATED PETROFABRIC STUDY OF THE HIGH-PRESSURE ORLICA-SNIEZNIK COMPLEX, CZECH REPUBLIC AND POLAND". Ohio University / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1149180445.
Pełny tekst źródłaZanjani-pour, Sahand. "Intervertebral disc stress and pressure in different daily postures : a finite element study". Thesis, University of Exeter, 2016. http://hdl.handle.net/10871/26682.
Pełny tekst źródłaSaxey, David W. "A high-resolution superconducting pressure gauge and irreversible magnetic effects in Nb and NbTi wires". University of Western Australia. School of Physics, 2005. http://theses.library.uwa.edu.au/adt-WU2005.0007.
Pełny tekst źródłaOhia, Obioma Ogonna Chinyerem. "Two-fluid simulations of magnetic reconnection with a kinetic closure for the electron pressure anisotropy". Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/95854.
Pełny tekst źródłaCataloged from PDF version of thesis.
Includes bibliographical references (pages 189-206).
Magnetic reconnection is a rapid rearrangement of magnetic line topology in a plasma that can allow magnetic energy to heat, drive macroscopic flows, or accelerate particles in space and laboratory plasmas. Though reconnection affects global plasma dynamics, it depends intimately on small-scale electron physics. In weakly-collisional plasmas, electron pressure anisotropy resulting from the electric and magnetic trapping of electrons strongly affects the structure surrounding the electron diffusion region and the electron current layer. Previous fluid models and simulations fail to account for this anisotropy. In this thesis, new equations of state that accurately describe the electron pressure anisotropy in cases of sufficiently strong guide magnetic field are implemented in fluid simulations and are compared to previous fluid models and kinetic simulations. Elongated current layers in the reconnection region, driven, in part, by this pressure anisotropy, appear as part of a self-regulating mechanism of electron pressure anisotropy. The structure depends on plasma parameters, with low guide fields yielding longer layers.
by Obioma Ogonna Chinyerem Ohia.
Ph. D.
Keong, Nicole Chwee Har. "The characterization of white matter injury patterns in normal pressure hydrocephalus using magnetic resonance imaging". Thesis, University of Cambridge, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.608298.
Pełny tekst źródłaPapandrew, Alexander B. Fultz B. "The effects of high pressure on the vibrational and magnetic properties of iron-based materials /". Diss., Pasadena, Calif. : Caltech, 2006. http://resolver.caltech.edu/CaltechETD:etd-03022006-151019.
Pełny tekst źródłaHirsch, Sebastian. "Compression-sensitive Magnetic Resonance Elastography". Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät, 2015. http://dx.doi.org/10.18452/17205.
Pełny tekst źródłaThis thesis introduces the concept of compression-sensitive Magnetic Resonance Elastography. Compression-sensitive MRE detects the propagation of pressure waves, providing insight into the compressibility of a material based on a poroelastic tissue model. Poroelastic models incorporate compressibility through interaction of compartments, even as each individual compartment remains incompressible. Hydrostatic tissue pressure abnormalities are associated with a number of diseases, such as normal pressure hydrocephalus or hepatic portal hypertension. Since pore pressure plays a central role in the poroelastic wave equations, compression-sensitive MRE could potentially serve as a diagnostic tool, providing information complimentary to shear-wave MRE data. This thesis describes the development of a fast single-shot EPI MR sequence capable of quantifying volumetric strain induced by external vibrations. Compression-sensitive MRE was validated in porous gel phantoms, in the human lung at two different respiratory states, in an ex vivo sheep liver at varying levels of hydrostatic pressure, and finally in human liver and brain. Results illustrate that compression-sensitive MRE is capable of quantifying volumetric strain in phantoms and in human organs. It was found that volumetric strain was sensitive toward pressure changes associated with different physiological states, whereas shear strain remained constant. In an additional study, pulsation of the human brain, driven by the heart cycle, was used as the actuation source instead of the external vibration generator. Results indicate local expansion of brain parenchyma upon the arrival of the arterial pulse wave, followed by a slow return to the initial state during the diastolic phase. Numerical values for the pressure wave modulus M were calculated from measured volumetric strain through inversion of the pressure wave equation. Measurement noise was identified as the primary effect causing a severe underestimation of M.
Korneta, Oleksandr B. "A systematic study of transport, magnetic and thermal properties of layered iridates". UKnowledge, 2012. http://uknowledge.uky.edu/physastron_etds/2.
Pełny tekst źródłaHuang, Lunmei. "Computational Material Design : Diluted Magnetic Semiconductors for Spintronics". Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-7800.
Pełny tekst źródłaVolk, Michael [Verfasser], i Stuart [Akademischer Betreuer] Gilder. "Influence of pressure, temperature and composition on magnetic recording in meteorites / Michael Volk. Betreuer: Stuart Gilder". München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2016. http://d-nb.info/1113534699/34.
Pełny tekst źródłaWei, Qingguo. "Magnetic properties of iron-nickel metals and alloys under high pressure with relevance to planetary cores". Diss., Ludwig-Maximilians-Universität München, 2015. http://nbn-resolving.de/urn:nbn:de:bvb:19-184441.
Pełny tekst źródłaVirhammar, Johan. "Idiopathic Normal Pressure Hydrocephalus : Cerebrospinal Fluid Tap Test and Magnetic Resonance Imaging as Preoperative Prognostic Investigations". Doctoral thesis, Uppsala universitet, Neurologi, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-222779.
Pełny tekst źródłaLi, Yujie, German Farrherr i Rainer Kimmich. "Hydrodynamic dispersion of pressure-induced and electroosmotic flow in porous glasses probed by Nuclear Magnetic Resonance". Universitätsbibliothek Leipzig, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-193043.
Pełny tekst źródłaLi, Yujie, German Farrherr i Rainer Kimmich. "Hydrodynamic dispersion of pressure-induced and electroosmotic flow in porous glasses probed by Nuclear Magnetic Resonance". Diffusion fundamentals 7 (2007) 8, S. 1-12, 2007. https://ul.qucosa.de/id/qucosa%3A14165.
Pełny tekst źródłaPetre, Marc Thomas. "INVESTIGATING THE INTERNAL STRESS/STRAIN STATE OF THE FOOT USING MAGNETIC RESONANCE IMAGING AND FINITE ELEMENT ANALYSIS". Case Western Reserve University School of Graduate Studies / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=case1181240611.
Pełny tekst źródłaBayramoglu, Sadik. "Characterization Of Ultra-fine Grained Steel Samples Produced By High Pressure Torsion Via Magnetic Barkhausen Noise Analysis". Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/2/12610637/index.pdf.
Pełny tekst źródłax-ray diffraction (XRD), metallographic examination and hardness measurements. The initial stages of HPT revealed the effects of conventional plastic deformation on MBN
however with further straining, grain size refinement prevailed and caused increase in MBN signals.
Smith, Jason Michael. "Resonant tunnelling in GaAs / AlAs double barrier heterostructures under elevated hydrostatic pressure and in high magnetic fields". Thesis, University of Oxford, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.337539.
Pełny tekst źródłaManago, Masahiro. "Enhancement of Spin-Triplet Superconductivity by Pressure-Induced Critical Ferromagnetic Fluctuations in UCoGe". Kyoto University, 2019. http://hdl.handle.net/2433/242592.
Pełny tekst źródłaWang, Weiwei. "Instrumentation development for magneto-transport and neutron scattering measurements at high pressure and low temperature". Thesis, University of Edinburgh, 2013. http://hdl.handle.net/1842/7676.
Pełny tekst źródłaQvarlander, Sara. "Analysis of ICP pulsatility and CSF dynamics : the pulsatility curve and effects of postural changes, with implications for idiopathic normal pressure hydrocephalus". Doctoral thesis, Umeå universitet, Radiofysik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-82784.
Pełny tekst źródłaForskningsfinansiär:
European Union, ERDF: Objective 2, Northern Sweden (grant no. 158715-CMTF).
Verseils, Marine. "Interplay between magnetic ordering and ferroelectricity in multiferroics with quadruple perovskite structure". Thesis, Paris 6, 2017. http://www.theses.fr/2017PA066457/document.
Pełny tekst źródłaIn the present Thesis, we study the large ferroelectricity induced by magnetism in two quadruple perovskite compounds: (LaMn3)Mn4O12 and (YMn3)Mn4O12, which both display single-valent properties and a commensurate C-type antiferromagnetic structure of the B-sites. These simple features offer a playground to elucidate the contribution of the symmetric and antisymmetric exchange interactions to the polarization. Both compounds are metastable and stabilized under high-pressure. YMO is a new phase, where the small Y3+ ion exerts a large chemical pressure, which is expected to enhance the exchange interaction and, thus, the spontaneous polarization. We find an ordering temperature of the B-sites, 30 K higher than in LMO. On the other hand, we surprisingly find identical values of the spontaneous polarization, P = 0.54 μC cm-2, in both compounds. It is a record value for magnetic ferroelectrics. In spite of the similarities, the nature of magnetic ferroelectricity appears to be very different in the two compounds. In LMO, ferroelectricity is induced by the magnetic ordering of B-sites, although no indication of inversion symmetry breaking is detected. We argue that this puzzling observation is consistent with prediction of domain structure in improper ferroelectrics. On the other hand, in YMO, the occurrence of ferroelectricity at T*=70 K is consistent with a polar structural modulation below Ts=200 K, however T* does not correspond to any long-range magnetic transition. Indeed, T* marks a magnetic anomaly suggesting a latent magnetic phase. We put forward the hypothesis that the above polar distortion of the crystal structure may force the alignment of polar domains
Wei, Qingguo [Verfasser], i Stuart [Akademischer Betreuer] Gilder. "Magnetic properties of iron-nickel alloys under high pressure with relevance to planetary cores / Qingguo Wei. Betreuer: Stuart Gilder". München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2015. http://d-nb.info/1074358791/34.
Pełny tekst źródła