Tesis sobre el tema "Iron structures"
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Tuncel, Selcan. "Synthesis Of Iron Borophosphates And Phosphates With Zeo-type Structures". Master's thesis, METU, 2004. http://etd.lib.metu.edu.tr/upload/2/1260460/index.pdf.
Texto completo), b = 7.445(Å
), c = 14.331(Å
) The compound with the formula NH4FeBP2O8OH was synthesized by hydrothermal method. Its X-ray powder diffraction pattern was indexed in monoclinic system. The unit cell parameters were found to be a = 9.336, b = 8.278, c =9.642Å
, and &
#946
= 101.60o, which are good agreement with the literature values. Ferro-axinite type of compound was discovered as single crystals resembling the axinite mineral. The compound was indexed in triclinic system with the unit cell parameters of a = 7.167, b = 8.840 , c = 9.455Å
, &
#945
= 64.83o, &
#946
= 64.83o, &
#947
= 69.42o. A zeotype Fe(H2O)2BP2O8.H2O, which was obtained by hydrothermal methods before, was synthesized by a precipitation method using different initial reactant. In this case, instead of Fe+2, Fe+3 compound was used as a reactant. All the compounds have been investigated by FTIR spectroscopy and the assignments of the functional BO3, BO4 and PO4 groups have been done.
Cao, Jianying. "Electronic structures of iron monocarbide (FeC) and rhenium mononitride (ReN)". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp02/NQ34253.pdf.
Texto completoMohd-Ali, B. B. "Computer mapping of grain structures in grain-oriented silicon-iron". Thesis, Bucks New University, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.373598.
Texto completoPowell, Robyn. "Structures and magnetic properties of iron(III) spin-crossover compounds". Thesis, Aston University, 2017. http://publications.aston.ac.uk/37512/.
Texto completoHenderson, Richard K. "The formation and structures of iron(III) polycarboxylato species formed in aqueous solution". Thesis, University of East Anglia, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.357576.
Texto completoOlowe, A. Abiodun. "Aqueous corrosion of iron in sulphated media mechanisms, kinetics and structures /". Grenoble 2 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb37617200t.
Texto completoMaraveas, Chrysanthos. "Fire resistance of metal framed historical structures". Thesis, University of Manchester, 2015. https://www.research.manchester.ac.uk/portal/en/theses/fire-resistance-of-metal-framed-historical-structures(390efc49-7228-4ad1-a164-356213df96fb).html.
Texto completoWang, Qianen y 王乾恩. "Electronic structures of impurity and orbital-resolved vortex core states in iron-selenide superconductors". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2014. http://hdl.handle.net/10722/206433.
Texto completopublished_or_final_version
Physics
Doctoral
Doctor of Philosophy
Nadler, Jason Hayes. "The hydrogen reduction of iron and chromium oxides". Diss., Georgia Institute of Technology, 2003. http://hdl.handle.net/1853/19410.
Texto completoLandgraf, Boris [Verfasser] y Wolfgang [Akademischer Betreuer] Hansen. "Structural, magnetic and electrical investigation of Iron-based III/V-semiconductor hybrid structures / Boris Landgraf. Betreuer: Wolfgang Hansen". Hamburg : Staats- und Universitätsbibliothek Hamburg, 2014. http://d-nb.info/1048626555/34.
Texto completoNguyen, Thao Ahn 1958. "Defect structures, phase relations and phase transformations of low temperature iron sulfide compounds". Thesis, Massachusetts Institute of Technology, 1987. http://hdl.handle.net/1721.1/92621.
Texto completoBrucka, Marta Anna. "N-Heterocyclic carbene complexes of silver, rhodium and iron: structures, dynamics and catalysis". Master's thesis, Alma Mater Studiorum - Università di Bologna, 2012. http://amslaurea.unibo.it/3873/.
Texto completoVillalba, Pedro Javier. "Nanodiamond Based Composite Structures for Biosensing Applications". Scholar Commons, 2014. https://scholarcommons.usf.edu/etd/5144.
Texto completoMedina, Ricardo A. Krawinkler Helmut. "Seismic demands for nondeteriorating frame structures and their dependence on ground motions /". Berkeley : Pacific Earthquake Engineering Research Center, 2004. http://peer.berkeley.edu/publications.
Texto completo"May 2004." "John A. Blume Earthquake Engineering Center, Dept. of Civil & Environmental Engineering, Stanford University." Includes bibliographical references.
Harland, Cathy. "Processing, structures and properties of nanophase rare earth - iron - boron based hard magnetic alloys". Thesis, University of Sheffield, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.327729.
Texto completoFanello, Marta. "Later Iron Age coinage in Britain : reconstructing insular social structures and systems of value". Thesis, University of Leicester, 2016. http://hdl.handle.net/2381/37981.
Texto completoNakatani, Naoki. "Theoretical Studies of Photoproteins and Non-Heme Iron Enzymes: Electronic Structures and Reaction Processes". 京都大学 (Kyoto University), 2010. http://hdl.handle.net/2433/120885.
Texto completoWILLIAMS, GEORGE CLAY. "STEEL CONNECTION DESIGNS BASED ON INELASTIC FINITE ELEMENT ANALYSES (GUSSET, BRACING, STRUCTURES)". Diss., The University of Arizona, 1986. http://hdl.handle.net/10150/188168.
Texto completoDörmbach, Karla Verfasser], Andrij Z. [Akademischer Betreuer] [Pich y Ulrich [Akademischer Betreuer] Simon. "Iron Oxide-Based Multi-Compartment Colloids with Complex Structures / Karla Dörmbach ; Andrij Pich, Ulrich Simon". Aachen : Universitätsbibliothek der RWTH Aachen, 2015. http://d-nb.info/112807611X/34.
Texto completoDörmbach, Karla [Verfasser], Andrij Z. [Akademischer Betreuer] Pich y Ulrich [Akademischer Betreuer] Simon. "Iron Oxide-Based Multi-Compartment Colloids with Complex Structures / Karla Dörmbach ; Andrij Pich, Ulrich Simon". Aachen : Universitätsbibliothek der RWTH Aachen, 2015. http://d-nb.info/112807611X/34.
Texto completoLo, David Siu-Kau. "A contribution to the computer aided design of optimized structures for the steel industry". Thesis, University of British Columbia, 1988. http://hdl.handle.net/2429/28497.
Texto completoApplied Science, Faculty of
Civil Engineering, Department of
Graduate
Chan, Sau-han y 陳秀嫻. "Non-heme iron(III) and gold(III) complexes with dicarboxamide ligands: synthesis, structures and anti-cancerproperties". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2007. http://hub.hku.hk/bib/B39557984.
Texto completoLui, Wing Man. "Design of cold-formed high strength stainless steel tubular columns and beam-columns /". View abstract or full-text, 2004. http://library.ust.hk/cgi/db/thesis.pl?CIVL%202004%20LUI.
Texto completoIncludes bibliographical references (leaves 149-154). Also available in electronic version. Access restricted to campus users.
Chan, Sau-han. "Non-heme iron(III) and gold(III) complexes with dicarboxamide ligands synthesis, structures and anti-cancer properties /". Click to view the E-thesis via HKUTO, 2007. http://sunzi.lib.hku.hk/HKUTO/record/B39557984.
Texto completoMcIntosh, Monique Sandra. "Mechanisms and Factors Affecting Chromium Oxide Particle reduction in Iron-Chromium Honeycombs". Diss., Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/6934.
Texto completoXie, Jin y 解錦. "Synthesis, structures and spectroscopic properties of primary and secondary phosphine complexes of iron, ruthenium and osmiumporphyrins". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2007. http://hub.hku.hk/bib/B39556876.
Texto completoKim, Jongsun Rees Douglas C. Rees Douglas C. "Crystallographic structures and functional implications of nitrogenase molybdenum-iron proteins from Azotobacter vinelandii and Clostridium pasteurianum /". Diss., Pasadena, Calif. : California Institute of Technology, 1993. http://resolver.caltech.edu/CaltechETD:etd-09182007-093920.
Texto completoKpogo, Kenneth K. "X-ray crystal structures of: [Rh2(N-{2,4,6-CH3}C6H2)COCH3)4]•2NCC6H4 AND Ba1.5[Fe(C10H13N2O7)][Co(CN)6]•9H2O; two crystallographic challenges". Digital Commons @ East Tennessee State University, 2013. https://dc.etsu.edu/etd/1175.
Texto completoJiménez, Pacheco Julio. "Behavior of steel-to-concrete connections for use in repair and rehabilitation of reinforced concrete structures /". Full-text Adobe Acrobat (PDF) file, 1992. http://www.engr.utexas.edu/research/fsel/FSEL_reports/Thesis/Jimenez-Pacheco,%20Julio.pdf.
Texto completoDong, Chunxiao y 董春宵. "Uni-axial behaviour of concrete-filled-steel-tubular columns with external confinement". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2013. http://hdl.handle.net/10722/195975.
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Civil Engineering
Master
Master of Philosophy
Biddah, Aiman Mahmoud Samy. "Evaluation of the seismic level of protection of steel moment resisting frame building structures". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0007/NQ42833.pdf.
Texto completoXie, Jin. "Synthesis, structures and spectroscopic properties of primary and secondary phosphine complexes of iron, ruthenium and osmium porphyrins". Click to view the E-thesis via HKUTO, 2007. http://sunzi.lib.hku.hk/HKUTO/record/B39556876.
Texto completoHuo, Suguo. "Micromagnetic simulation and MFM study of micromagnetic structures in ferromagnetic materials". Thesis, University of Sheffield, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.287631.
Texto completoIbrar, Muhammad. "Microstructure of Fe-based and NiFe nanowires encapsulated by multiwalled carbon nanotube radial structures". Thesis, Queen Mary, University of London, 2018. http://qmro.qmul.ac.uk/xmlui/handle/123456789/36222.
Texto completoRaby, Douglas Allan. "Development of a system architecture and applications for an integrated computer software system for the analysis and design of steel structures". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0017/MQ48372.pdf.
Texto completoGardenghi, David Jeremiah. "Synchrotron radiation-based spectroscopic investigation of the electronic and geometric structures of iron-sulfur clusters, particles, and minerals". Diss., Montana State University, 2012. http://etd.lib.montana.edu/etd/2012/gardenghi/GardenghiD0512.pdf.
Texto completoGuerra, Gabriel Andrés Fonseca. "Study of the longitudinal spin Seebeck effect in hybrid structures with yttrium iron garnet and various metallic materials". Universidade Federal de Pernambuco, 2014. https://repositorio.ufpe.br/handle/123456789/12719.
Texto completoMade available in DSpace on 2015-04-08T12:40:55Z (GMT). No. of bitstreams: 2 DISSERTAÇÃO Gabriel Fonseca.pdf: 3837074 bytes, checksum: e2c9b20882785e374170658d648ee389 (MD5) license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Previous issue date: 2014-03-10
Conselho Nacional de Desenvolvimento Científi co e Tecnol ógico; Coordenação de Aperfeiçoamento de Pessoal de Ní vel Superior; Financiadora de Estudos e Projetos; Fundação de Amparo a Ciência e Tecnologia do Estado de Pernambuco.
In this master thesis we study experimentally the longitudinal spin Seebeck effect (LSSE) in bilayers made of a ferromagnetic insulator (FMI) and a metallic layer (M). We also present a theoretical model based on the spin current density ⃗ Js carried by a non-equilibrium magnon distribution, generated by a thermal gradient ∇T across the thickness of the FMI. When ⃗ Js reach the FMI/M interface it is pumped towards the M layer due to conservation of the angular momentum, so, the M layer is essential for the LSSE existence. Here the FMI consists of a Yttrium Iron Garnet (YIG) lm, grown over a Gadolinium Gallium Garnet (GGG) substrate. Different metallic materials were used as the M layer i.e. Pt and Ta that have normal behavior and Py that is a ferromagnetic metal (FMM). The experimental procedure consists of systematic measurements of the electric voltage VISHE, produced by ⃗ Js through the Inverse Spin Hall Effect (ISHE) in the normal metal or (FMM) layer. In YIG/Pt measurements were done in the temperature range from 20 to 300 K. The experimental data are tted to the proposed model for the LSSE and good agreement is obtained. The results shows that the Py and Ta can be used to detect the LSSE with the ISHE. The results of this master thesis have strong interest in the area of spin caloritronics helping to the development of the eld and to raise possibilities of new spintronic devices. ----- Nesta diserta ção e estudado experimentalmente o Efeito Seebeck de Spin Longi- tudinal (LSSE), em bicamadas formadas por um isolante ferromagn etico (FMI) e um lme metalico (M). Tamb em foi desenvolvido um modelo te orico baseado na den- sidade de corrente de spin ⃗ Js que existe quando uma distribui c~ao de m agnons fora do equil brio e gerada por um gradiente t ermico ∇T aplicado na sec ção transversal do FMI. Quando ⃗ Js chega na interface FMI/M e bombeada para a camada M satis- fazendo a conserva ção do momentum angular, assim que a camada NM e essencial para ter um LSSE. Como camada FMI foi utilizada a granada de trio e ferro (YIG) crescida num substrato de (GGG). Diferentes materiais metalicos foram utilizados como camada M, sendo Pt e Ta paramagn eticos e o Py ferromagnetico. O proced- imento experimental consiste na medi c~ao sistem atica da voltagem el etrica VISHE, que e produzida por ⃗ Js por meio do efeito Hall de spin inverso (ISHE) que ocorre na camada M. As medidas em YIG/Pt foram feitas numa faixa ampla de temperatura de 20 a 300 K. Os dados experimentais são fi tados com a teoria proposta para o LSSE encontrando-se boa concordância. Nossos resultados mostram que o Py e o Ta s~ao bons candidatos para detec ção do LSSE. Esta disserta ção e de grande interesse na area da caloritrônica de spin, ajudando no desenvolvimento deste campo e na concep ção de novos dispositivos tecnol ogicos baseados na spintrônica.
Linzell, Daniel Gattner. "Studies of a full-scale horizontally curved steel I-girder bridge system under self-weight". Diss., Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/18342.
Texto completoLodge, Julia M. "Influence of sub-MICs of B-lactam antibiotics, growth rate, and iron limitation on the surface structures of Klebsiella pneumoniae". Thesis, Aston University, 1987. http://publications.aston.ac.uk/12554/.
Texto completoGallegos, Mayorga Linamaría. "Contribution à la compréhension du comportement mécanique des assemblages rivetés anciens". Thesis, Brest, 2016. http://www.theses.fr/2016BRES0038/document.
Texto completoNumerous metallic bridges can be found in the French railway heritage. Since a majority of these structures was built during the second half of the 19th century, they have been in service for over a hundred years and need an adapted maintenance policy.These doctoral thesis, done in collaboration with SNCF Réseau, improves the understanding of the mechanical behaviour of hot riveted assemblies under monotonic and cyclic loadings. An experimental strategy was proposed and carried out in order to identify the failure mechanisms of riveted assemblies. First, the studied material, a puddled iron, was obtained from recovered elements from the bridge over the Adour river in Bayonne (1864-2013). Mechanical testing and characterisation was performed under monotonic and cyclic loadings. Puddled iron’s brittle, anisotropic and scattered behaviour was observed and analysed. In-house software applications were developed in order to study this kind of material. Additionally, hot riveted specimens (constructional details) were designed, manufactured and tested under monotonic and cyclic loadings. A precise working (and failure) scenario of the double shear mono-rivet assembly was identified. The influence of the material’s behaviour, stress concentrators, shearing of the rivet and clamping force of the rivet were studied. The results obtained during these research works, compared to the ones found in academic literature as well as construction norms for metallic structures, showed the importance and complementarity of a multi-scale approach (material behaviour and local study of assemblies) in order to understand and assess the behaviour of ancient riveted structures
Chao, Min. "The design and behaviour of concrete filled steel tubular beam-columns /". View thesis View thesis, 2000. http://library.uws.edu.au/adt-NUWS/public/adt-NUWS20030429.154344/index.html.
Texto completoBialon, Arthur [Verfasser], Ralf [Gutachter] Drautz y Jörg [Gutachter] Neugebauer. "The iron-boron system : ordered structures and point defects / Arthur Bialon ; Gutachter: Ralf Drautz, Jörg Neugebauer ; Fakultät für Physik und Astronomie". Bochum : Ruhr-Universität Bochum, 2013. http://d-nb.info/1201553490/34.
Texto completoCABBOI, ALESSANDRO. "Automatic operational modal analysis: challenges and applications to historic structures and infrastructures". Doctoral thesis, Università degli Studi di Cagliari, 2014. http://hdl.handle.net/11584/266404.
Texto completoAfshar, Raman Khosrow. "Iron nitrosyls derived from polypyridine ligands with carboxamide groups(s) : syntheses, structures, photolability of NO, and S-nitrosylation of thiols and papain /". Diss., Digital Dissertations Database. Restricted to UC campuses, 2005. http://uclibs.org/PID/11984.
Texto completoYoung, B. (Ben). "The behaviour and design of cold-formed channel columns". Thesis, Faculty of Engineering, 1997. http://hdl.handle.net/2123/13673.
Texto completoChao, Min. "The design and behaviour of concrete filled steel tubular beam-columns". Thesis, View thesis View thesis, 2000. http://handle.uws.edu.au:8081/1959.7/92.
Texto completoVock, Silvia. "Resolving Local Magnetization Structures by Quantitative Magnetic Force Microscopy". Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-148019.
Texto completoRose, Michael J. "Synthesis, x-ray structures, spectroscopy, DFT electronic configuration and biological relevance of photolabile ruthenium and iron nitrosyls derived from ligands containing carboxamido-N donors /". Diss., Digital Dissertations Database. Restricted to UC campuses, 2009. http://uclibs.org/PID/11984.
Texto completoJagodnik, Jonathan. "Multiples mécanismes de régulation post-transcriptionnelle chez les bactéries : des structures d’ARN messager aux ARN régulateurs". Thesis, Sorbonne Paris Cité, 2017. http://www.theses.fr/2017USPCC111/document.
Texto completoIn order to perfectly adapt to their environment, bacteria require a tight gene expression regulation. This can occur through post-transcriptional control by numerous regulatory RNAs (or small RNAs, sRNAs). These sRNAs can target mRNAs, leading to a fast regulation of protein synthesis. Most often, sRNAs base-pair with their target mRNAs at the ribosome binding site (RBS), therefore competing with the ribosome for the binding with the mRNA and repressing gene expression. However, many other regulatory mechanisms involve sRNAs. We have demonstrated that the two sRNAs OmrA and OmrB, conserved among enterobacteria, repress the synthesis of the FepA receptor for iron-enterobactin complexes through base-pairing with a secondary structure within fepA mRNA. This stem-loop structure is located downstream of fepA RBS, and most surprisingly, promotes 30S ribosomal subunit binding to fepA mRNA, therefore activating FepA synthesis. Similar stem-loop structures have been predicted in other mRNAs, such as the bamA mRNA encoding the essential subunit of the Bam outer membrane protein assembly complex. As for fepA mRNA, the stem-loop found in bamA mRNA also promotes ribosome binding, showing that this regulatory mechanism could be widespread considering the strong conservation of bamA among Gram negative bacteria. Moreover, these results challenge the commonly admitted view of mRNA secondary structures being repressors of gene expression. Two other sRNAs also repress fepA expression in an OmrA/B-independent fashion, namely SdsR and RseX. For each of these sRNAs, the regulatory mechanism involved is different. Indeed, SdsR most likely acts through two distinct binding sites, one of which leading to a classical competition with the ribosome binding. Meanwhile, RseX repression requires most of fepA 5’UTR, including sequences at about 100nt upstream of the start codon. Finally, each of these sRNAs is expressed upon diverse stimuli, considerably extending our knowledge of the signals leading to fepA regulation, for which only the Fur-dependent derepression upon iron starvation was known. This work highlights the great versatility of regulatory mechanisms involving RNAs. This illustrates how RNAs structural flexibility and sequence diversity is a key source of diversity for evolution
Lopez, Samuel. "Définition de nouvelles structures de circuits magnétiques de machines AC utilisant des tôles à grains orientés". Thesis, Artois, 2011. http://www.theses.fr/2011ARTO0202/document.
Texto completoThe work presented is focused on the design and development of a magnetic circuit for high efficiency motors of medium and small powers. It is built with non-segmented laminations of Grain Oriented (GO) steel. Experimentations on magnetic circuits excited under unidirectional magnetic field are performed. Such tests aim the comparison of the GO structure global characteristics with those of a classic one composed of Non-Oriented (NO) steel, allowing seeing the superiority of the GO structure in terms of iron losses. Local experimentations, followed by a numerical model, allow the analysis of the local distribution of the magnetic flux within the structure, leading to its optimisation. Such technique of assembly is then tested under rotational magnetic field. In that context, several experimentations are performed and its performance is compared with the one of a NO prototype. The final stage consists in testing the developed structure in induction motors built withthis GO assembly. Several characteristics are measured or estimated (IEC standard) and compared with those obtained on the initial NO motor. The GO structure efficiency leads to a remarkable reduction of the static losses, allowing the increase of the global efficiency of the motor