Relevant bibliographies by topics / Iron, structural

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Iron, structural'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 August 2024

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Journal articles on the topic "Iron, structural"

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van der Lee, A., and R. Astier. "Structural evolution in iron tellurates." Journal of Solid State Chemistry 180, no. 4 (April 2007): 1243–49. http://dx.doi.org/10.1016/j.jssc.2007.01.022.

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de Wit, H. J., F. W. A. Dirne, and C. H. M. Witmer. "Magnetic and structural properties of iron/amorphous iron alloy multilayers." Journal of Applied Physics 67, no. 9 (May 1990): 5131–33. http://dx.doi.org/10.1063/1.344664.

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Mann, S., V. J. Wade, D. P. E. Dickson, N. M. K. Reid, R. J. Ward, M. O'Connell, and T. J. Peters. "Structural specificity of haemosiderin iron cores in iron-overload diseases." FEBS Letters 234, no. 1 (July 4, 1988): 69–72. http://dx.doi.org/10.1016/0014-5793(88)81305-x.

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Jormakka, Mika. "Structural insights into ferroportin mediated iron transport." Biochemical Society Transactions 51, no. 6 (December 20, 2023): 2143–52. http://dx.doi.org/10.1042/bst20230594.

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Iron is a vital trace element for almost all organisms, and maintaining iron homeostasis is critical for human health. In mammals, the only known gatekeeper between intestinally absorbed iron and circulatory blood plasma is the membrane transporter ferroportin (Fpn). As such, dysfunction of Fpn or its regulation is a key driver of iron-related pathophysiology. This review focuses on discussing recent insights from high-resolution structural studies of the Fpn protein family. While these studies have unveiled crucial details of Fpn regulation and structural architecture, the associated functional studies have also at times provided conflicting data provoking more questions than answers. Here, we summarize key findings and illuminate important remaining questions and contradictions.
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Fuentealba, Mauricio, Deborah Gonzalez, and Vania Artigas. "Structural Characterization of Iron(iii) Dinuclear Complexes." Acta Crystallographica Section A Foundations and Advances 70, a1 (August 5, 2014): C1695. http://dx.doi.org/10.1107/s2053273314083041.

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Dinuclear complexes have been studied for different purposes: magnetic materials[1], Non-linear optics materials[2], molecular switches [3], mixed-valence systems, etc. With these antecedents in mind, we present in this work a new series of dinuclear Iron(III) complexes formed by different Schiff bases ligands. The reaction starting from the iron chloride salts with the 5-chloro or 5-bromo-salycilaldehyde and ethylendiamine yields two different kinds of dinuclear iron complexes in different reaction conditions. The first one (Fig N°1), are methoxo-bridged dinuclear iron(III) complexes in which each metal centre is coordinated with one mono-condensated Schiff base ligand, one 4-chloro or 4-bromo-2-(dimethoxymethyl)phenoxo ligand and two bridging methoxo ligands. The iron(III) centres are hexacoordinated (FeN2O4), the coordination sphere is formed by 2 nitrogen atoms of the ethylendiamine fragment, 2 oxygen atoms from the hydroxyl of the Schiff base and two O atoms from the methoxo ligands. Both iron(III) centres are related by a inversion centre. The second one (Fig N°2), the dinuclear complex is formed for the double condensation of ethylendiamine with 5-chloro or 5-bromo-salycilaldehyde and one oxygen from the dianionic ligand act as bridge with another unit. The iron (III) centres are also hexaccordinated (FeN2O3Cl) formed by 2 nitrogen atoms from ethylendiamine fragment and 3 oxygen atoms from hydroxyl from Schiff base ligands and one chloro ligand. Finally, the electronic and redox properties have been studied by UV-Visible and cyclic voltammetry. ACKNOWLEDGMENT FONDECYT N01130640, FONDEQUIP EQM120095 and Beca CONICYT folio 21130944
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Rutz, Frederick R., Joel Watters, Preeda Chromshrimake, and Zachary Rogers. "Welding of Historic Structural Wrought Iron." Journal of Materials in Civil Engineering 30, no. 6 (June 2018): 04018097. http://dx.doi.org/10.1061/(asce)mt.1943-5533.0002222.

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Sikka, Vinod K., and Chain T. Liu. "Iron-Aluminide Alloys for Structural Use." Materials Technology 9, no. 7-8 (July 1994): 159–62. http://dx.doi.org/10.1080/10667857.1994.11785056.

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Lindley, Peter F. "Iron in biology: a structural viewpoint." Reports on Progress in Physics 59, no. 7 (July 1, 1996): 867–933. http://dx.doi.org/10.1088/0034-4885/59/7/002.

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Marasinghe, G. "Structural features of iron phosphate glasses." Journal of Non-Crystalline Solids 222, no. 1-2 (December 11, 1997): 144–52. http://dx.doi.org/10.1016/s0022-3093(97)00393-1.

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Marasinghe, G. K., M. Karabulut, C. S. Ray, D. E. Day, M. G. Shumsky, W. B. Yelon, C. H. Booth, P. G. Allen, and D. K. Shuh. "Structural features of iron phosphate glasses." Journal of Non-Crystalline Solids 222 (December 1997): 144–52. http://dx.doi.org/10.1016/s0022-3093(97)90107-1.

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Dissertations / Theses on the topic "Iron, structural"

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O'Sullivan, Matthew. "Assessment procedures for structural wrought iron." Thesis, University of Manchester, 2013. https://www.research.manchester.ac.uk/portal/en/theses/assessment-procedures-for-structural-wrought-iron(d8a2b7a5-db32-48c4-8ffe-983b42e5a4d8).html.

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The main objective of this research project was to develop a new methodology for the assessment of wrought iron structures using a more informed knowledge of the material.A database of tensile test data for wrought iron across the range of all types of structural elements was compiled and analysed to establish the characteristic yield strength for comparison with the value of 220N/mm2 quoted by the UK Highway Standard BD21. It was found that the characteristic yield strength of bar iron is 151N/mm2 and that of plate iron is 187N/mm2.Bending tests of wrought iron beams were conducted to investigate the potential for brittle fracture under static loads, which was observed, and further investigated by conducting Charpy impact tests, where it was found the that ductile to brittle transition temperature of the metal lies in the range 20 to 80oC, whereas that of mild steel, is typically in the range -30 to 10 oC.A new assessment method was proposed that incorporates a 'quality factor' and a 'component significance factor' into the definition of design yield strength. Comparative studies using the proposed method and the existing method were conducted on a trussed highway bridge, a long span iron roof to a railway station and the Clifton Suspension Bridge. The newly obtained lower values of characteristic yield strength tend to dominate the final design strength value of a component, but this may be improved by the expansion of the database. Furthermore, the inclusion of the quality and significance factors offset this effect and their inclusion was validated by proving that a safe yet not overly conservative design yield strength may be established by application of the proposed method.
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Kerkar, Moussa. "A structural investigation of the passive film on iron and iron/chromium alloys." Thesis, University of Warwick, 1989. http://wrap.warwick.ac.uk/106531/.

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The Electrochemical Polarisation, Photocurrent Spectroscopy and Extended X-ray Absorption Fine Structure (EXAFS) techniques have been used to study the passive film on pure iron and iron alloy samples containing up to 25% chromium. The material used in this work was prepared both as bulk and thin films. The bulk samples were passivated electro- chemically at various anodic potentials whereas the film ones were either fully converted into passive films by simple immersion in various solutions for one week or electrochemically at various anodic potentials. The Fe and Fe/Cr film samples used in the electrochemical passi­vation were deposited onto gold substrate and those passivated by immersion were deposited directly onto mylar. Polarisation curves for both the bulk and film materials were recorded. They suggest that the electrochemical behaviour of the two materials is similar. The wavelength and potential dependence of the photocurrent spectra were also recorded for the bulk and film samples of Fe and Fe/Cr alloys. The data were analysed to obtain the effective optical band gaps and flat band potentials of the passive films respectively. These results also show that the two materials are similar. Furthermore, the photocurrent data suggest that the passive film on Fe/Cr alloys consists of Fe(III) and Cr(III) phases. The fluorescence EXAFS above the Fe and Cr K-absorption edges of the passive film on Fe and Fe/Cr alloy films has been recorded both in-situ and en- situ. The spectra obtained in these studies were analysed to obtain average Fe-O and Fe-Fe separations as well as Cr-0 and Cr-Cr ones. These results together with a detailed examination of the XANES suggest that the passive film on iron in the absence of chromium is best described as a disordered 7—FeOOH-like structure and that on Fe/Cr alloys as well as on pure Fe passivated in chro­mate solution contains two simultaneous phases of disordered 7-FeOOHand Cr(OH)j. The structure of the chromium containing phase of the passive film was found to be independent of the source of chromium whether it was present in the alloy or it was incorporated from the passivating solution. The EXAFS data show also that the structure of the passive film is insensitive to drying. The results obtained in these studies have enabled the determination of the structure of the passive film on iron and iron/chromium alloys and the rôle played by chromium in improving the corrosion resistance of iron and its alloys has been identified. These conclusions are discussed in the light of other structural investigations of the passive film.
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Onda, Nicolino. "Epitaxially stabilized iron-silicides : structural and electrical properties /." [S.l.] : [s.n.], 1994. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=10513.

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Lee, Dok Won. "Structural and magnetic properties of copper/iron multilayers." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ44203.pdf.

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Brüning, Ralf. "Reversible structural relaxation in iron based metallic glasses." Thesis, McGill University, 1986. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=65539.

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Porter, Deborah Aitken. "Structural and magnetic study of ammonium iron halides." Thesis, University of Edinburgh, 1998. http://hdl.handle.net/1842/11274.

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Some ABX3 materials, in which A is a monovalent cation, B a divalent cation and X a monovalent anion, are known to exhibit the hexagonal perovskite structure; these have a chain-like structure produced by face sharing BX6 octahedra that lie parallel to the crystal c axis. For materials in which B is a first row transition metal, this structural anisotropy leads to pseudo-one dimensional magnetic behaviour, the interchain exchange is several orders of magnitude larger than the intrachain exchange. This thesis discusses the investigation of the crystal structure and crystallographic and magnetic phase transitions in the hexagonal perovskites, ammonium iron chloride and bromide; specifically to consider the effect of the non-spherical ammonium ion on both the structure and the magnetic properties. Powder samples have been studied between 420 and 4.2 K using high resolution synchrotron X-ray diffraction, and between 470 and 1.5 K using neutron diffraction. The rotation of the ammonium ion within the structure was studied via quasi-elastic neutron diffraction. Single crystals of both materials were obtained and studied using SQUID magnetometry and X-ray diffraction (between room temperature and 10 K). Ammonium iron chloride is found to undergo a structural phase transition at 181.0(2) K where the symmetry is lowered as the FeCl3 chains twist slightly. A second structural phase transition is observed at 19.5(2) K; in this case the unit cell is found to double in the a direction with respect to the primitive cell. Quasi-elastic neutron scattering measurements show NH4FeCl3 exhibits quantum tunnelling in its low temperature phase, proving the NH4 motion is frozen at that temperature. Neutron diffraction reveals antiferromagnetic reflections corresponding to a helical magnetic array below 3.7(2) K; susceptibility data also show a transition at this temperature.
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Folgosa, Filipe dos Santos. "Structural and mechanistic studies of iron containing proteins." Doctoral thesis, FCT - UNL, 2008. http://hdl.handle.net/10362/1774.

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Dissertação apresentada para obtenção do Grau de Doutor em Bioquímica, ramo de Bioquímica-Física, pela Universidade Nova de Lisboa, Faculdade de Ciências e Tecnologia
Over the last few decades a large effort has been done in the structural biochemistry field. This effort is based on the study of some proteins, namely metalloproteins, that contain cofactors and/or active sites with metal ions in their constitution. This thesis will focus on different studies performed in metalloproteins that contain non-heme iron centers. An important point is their relation to oxygen and reactive oxygen species. To perform these studies, fast kinetic techniques were used coupled to spectroscopic techniques, such as Electronic Paramagnetic Resonance (EPR), Mössbauer and UVVisible.
Fundação para a Ciência e Tecnologia (SFRH/BD/18905/2004)
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Money, Victoria A. "Structural studies of iron (II) spin crossover compounds." Thesis, Durham University, 2004. http://etheses.dur.ac.uk/2987/.

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The drive for ever smaller and faster computers has, in recent years, caused much research interest to be focussed on the development of new materials in which individual molecules or assemblies of molecules can be used for information processing. Materials which show spin crossover behaviour have great potential for use not only in molecular computing but also in applications such as optical switches and display devices and are of fundamental interest due to their importance in biological and geological systems. The results of comprehensive variable temperature and excited state crystallographic studies into the spin crossover behaviour of a family of iron (II) spin crossover complexes based on the 2,6-di(pyrazol-l-yl)pyridine ligand are presented herein. A fascinating aspect of spin crossover materials is their ability to undergo a transition from the low spin state to a metastable high spin state, with a very long lifetime, on irradiation. Crystallographic information on the structure of the metastable high spin state formed as a result of irradiation is very rare. Full structural analyses of the metastable state are reported for [FeLl(_2)](BF(_4))(_2), [Fe(L3)(_2)](BF(_4))(_2), [Fe(L3)(_2)](C1O(_4))(_2) and [Fe(L4)(_2)](BF(_4))(_2) (LI = 2,6- di(pyrazol-l-yl)pyridine, L3 = 2,6-(dipyrazol-l-yl)-4-hydroxymethylpyridine, L4 = 2,6-di(3-methylpyrazol-1 -yl)pyridine). These studies have shown that, unlike other reported materials, the metastable high spin state is structurally identical to that reached as a result of the thermal spin transition. [Fe(L4)(_2)](BF(_4)) (_2)1/3H(_2)O is shown to have a fascinating complexity of spin crossover behaviour including the existence of a number of metastable states. The effect of dehydration on the spin crossover behaviour has been determined. Spin crossover compounds are extremely sensitive to changes in pressure; nonetheless there have been very few studies of the effect of pressure on the structure of these materials. The structure of the pressure induced low spin state at ambient temperature and 4.5 kbar is reported for [FeLl2](BF4)2. The crystallographic results are supported throughout by SQUID magnetometry studies.
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Beesley, Angela M. "Structural and magnetic studies on sputtered uranium / iron multilayers." Thesis, University of Liverpool, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.415747.

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Keep, Graham. "Structural and Functional Studies of Ferrous Iron Transporter B." Thesis, The University of Sydney, 2018. http://hdl.handle.net/2123/18969.

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The transmembrane bacterial iron importer FeoB has been shown to be the key component for ferrous iron acquisition for most pathogenic bacteria and has been shown to be a viable antimicrobial target. The molecular mechanisms for FeoB’s iron transport are not well understood with the most significant finding being active transport via a cytosolic GTPase. The lack of understanding is the result of inherent difficulties in obtaining pure monodispersed full length FeoB for structural and biochemical analysis. Truncated FeoB GTPase domains (termed NFeoB) from various species have been deposited in the PDB with and without bound GTP analogues. The key to furthering the knowledge of bacterial ferrous iron transport involves improving techniques in expression and purification of the full length FeoB protein. To obtain more monodispersed and pure protein, expression of FeoB was trialled with a TEV cleavable GST affinity tag, purified with the reducing agent, Sodium dithionite as well as, with and without GDP. Another construct of FeoB was tested with a small fused flexible C-terminal region (to allow for oligomerisation using an 8 histidine affinity tag). Expression was also trialled within an FtsH (a FeoB specific protease) E. coli knockout. Sodium dithionite evoked a more pure FeoB sample, compared to purification without, as did the flexible C-terminal construct, however producing no protein crystals from either experiment. FeoB expressed in FtsH knockout cells was less degraded compared to the cell’s isogenic paired counterpart. However degradation was not less than our lab’s standard membrane expression cell line ‘C41’. Important outcomes from this work include; purification with Sodium dithionite proved vitally important in stabilising FeoB during purification as well as expression (i.e. stabilised oligomerisation) and also improved expression systems with FtsH knockout cells which are all promising directions to take to obtain a more pure and monodispersed protein.
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Books on the topic "Iron, structural"

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M, Sutherland R. J., ed. Structural iron, 1750-1850. Aldershot, Hampshire: Ashgate, 1997.

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Spiegel, Leonard. Applied structural steel design. 3rd ed. Upper Saddle River, N.J: Prentice Hall, 1997.

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Canada. Human Resources and Social Development Canada. Ironworker (structural/ornamental). [Gatineau, Quebec]: Human Resources and Social Development Canada, 2006.

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Pacific Structural Steel Conference (4th 1995 Singapore). Structural steel: PSSC '95, 4th Pacific Structural Steel Conference. Oxford: Pergamon, 1995.

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1932-, Fukumoto Yuhshi, ed. Structural stability design: Steel and composite structures. Oxford: Pergamon, 1997.

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Anastassopoulos, A. Structural appraisal of old iron beams. Manchester: UMIST, 1997.

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Shuster, John W. Structural steel fabrication practices. New York: McGraw-Hill, 1997.

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Williams, Alan. Structural steel design, ASD. 2nd ed. Country Club Hills, Ill: International Code Council, 2007.

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Segui, William T. Fundamentals of structural steel design. Boston: PWS-KENT, 1989.

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Mark, Watson, Dakin A, Historic Scotland. Technical Conservation, Research and Education Group, and Historic Scotland, eds. Scottish iron structures. Edinburgh: Historic Scotland, 2006.

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Book chapters on the topic "Iron, structural"

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Boothby, Thomas E. "Empirical Structural Design." In Engineering Iron and Stone, 9–21. Reston, VA: American Society of Civil Engineers, 2015. http://dx.doi.org/10.1061/9780784413838.ch01.

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Sparks, Nick. "Structural and Morphological Characterization of Biogenic Magnetite Crystals." In Iron Biominerals, 167–77. Boston, MA: Springer US, 1991. http://dx.doi.org/10.1007/978-1-4615-3810-3_12.

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Stucki, Joseph W. "Structural Iron in Smectites." In Iron in Soils and Clay Minerals, 625–75. Dordrecht: Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-009-4007-9_17.

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Theil, Elizabeth C., and Dale E. Sayers. "Iron Core Formation in Ferritins." In Synchrotron Radiation in Structural Biology, 161–67. Boston, MA: Springer US, 1989. http://dx.doi.org/10.1007/978-1-4684-8041-2_18.

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Ramazani, Ali, Banu Berme, and Ulrich Prahl. "Steel and Iron Based Alloys." In Structural Materials and Processes in Transportation, 5–48. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2013. http://dx.doi.org/10.1002/9783527649846.ch1.

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Nakamaru-Ogiso, Eiko. "Iron–Sulfur Clusters in Complex I." In A Structural Perspective on Respiratory Complex I, 61–79. Dordrecht: Springer Netherlands, 2012. http://dx.doi.org/10.1007/978-94-007-4138-6_3.

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Frey, M. "Nickel-iron hydrogenases: Structural and functional properties." In Structure and Bonding, 97–126. Berlin, Heidelberg: Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/3-540-62888-6_4.

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Sire, Stéphane. "Global Statistical Analysis of Old Iron and Steel Properties Based on Old and Recent Literature Review." In Structural Integrity, 259–65. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-97822-8_30.

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Matsuda, C. K., R. Barco, P. Sharma, V. Biondo, A. Paesano, J. B. M. da Cunha, and B. Hallouche. "Iron-containing pyrochlores: structural and magnetic characterization." In LACAME 2006, 55–61. Berlin, Heidelberg: Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-85559-0_9.

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Jepson, W. B. "Structural Iron in Kaolinites and in Associated Ancillary Minerals." In Iron in Soils and Clay Minerals, 467–536. Dordrecht: Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-009-4007-9_15.

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Conference papers on the topic "Iron, structural"

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Wang, Guomei, Yuan Wang, and Baohui Jin. "Structural properties of sodium-iron phosphate glasses." In SPIE's 1994 International Symposium on Optics, Imaging, and Instrumentation, edited by Alexander J. Marker III. SPIE, 1994. http://dx.doi.org/10.1117/12.190949.

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Fahmy, Ahmed, and M. Hesham El Naggar. "Uplift Performance of Spun-Cast Ductile Iron Piles." In Geotechnical and Structural Engineering Congress 2016. Reston, VA: American Society of Civil Engineers, 2016. http://dx.doi.org/10.1061/9780784479742.159.

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BIANCO, L. DEL, A. HERNANDO, E. NAVARRO, and E. BONETTI. "STRUCTURAL CONFIGURATION AND MAGNETIC PROPERTIES OF NANOCRYSTALLINE IRON." In Proceedings of the Fifth International Workshop on Non-Crystalline Solids. WORLD SCIENTIFIC, 1998. http://dx.doi.org/10.1142/9789814447225_0074.

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Malviya, Sheetal, Ravindra R. Kinge, Netram Kaurav, and R. C. Dixit. "Pressure dependent structural phase transition in iron silicide." In NATIONAL CONFERENCE ON PHYSICS AND CHEMISTRY OF MATERIALS: NCPCM2020. AIP Publishing, 2021. http://dx.doi.org/10.1063/5.0061310.

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Krishna, T. Satya, and A. K. Bhatnagar. "Structural and magnetic properties of iron based superconductor Fe0.99Se0.5Te0.5." In SOLID STATE PHYSICS: Proceedings of the 56th DAE Solid State Physics Symposium 2011. AIP, 2012. http://dx.doi.org/10.1063/1.4710284.

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Love, Joshua, Mark Walluk, and Henrique L. Reis. "Nonlinear ultrasonic assessment of damage in cast iron components." In Health Monitoring of Structural and Biological Systems XVI, edited by Paul Fromme and Zhongqing Su. SPIE, 2022. http://dx.doi.org/10.1117/12.2613048.

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Tobinaga, Hironobu, Minoru Murayama, and Eiki Yamaguchi. "Highway bridge deck made of ductile-cast-iron." In IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs. Zurich, Switzerland: International Association for Bridge and Structural Engineering (IABSE), 2021. http://dx.doi.org/10.2749/ghent.2021.1519.

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<p>The application of ductile cast iron to a bridge deck is explored. Produced by casting, the deck can be of any shape without welding and expected to have little possibility of fatigue crack. The deck would be light, about a half of the RC deck, so that it could enhance the seismic resistance of a bridge. The deck is designed following the Japanese design specifications for steel highway bridges. The design is done by 3-D FEM. Through computational simulations and actual casting trials, the ductile cast-iron deck panel with uniform material property is produced successfully. To investigate its structural behavior, the panel is loaded statically. Ductile structural behavior is observed without initiating cracks. Fatigue test is carried out. No fatigue cracks occur even when the number of the loading cycles reaches 10,000,000. The wheel load running test of the 12 deck panels was conducted, ensuring that a very good fatigue resistance．</p>
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Tobinaga, Hironobu, Minoru Murayama, and Eiki Yamaguchi. "Highway bridge deck made of ductile-cast-iron." In IABSE Congress, Ghent 2021: Structural Engineering for Future Societal Needs. Zurich, Switzerland: International Association for Bridge and Structural Engineering (IABSE), 2021. http://dx.doi.org/10.2749/ghent.2021.1519.

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<p>The application of ductile cast iron to a bridge deck is explored. Produced by casting, the deck can be of any shape without welding and expected to have little possibility of fatigue crack. The deck would be light, about a half of the RC deck, so that it could enhance the seismic resistance of a bridge. The deck is designed following the Japanese design specifications for steel highway bridges. The design is done by 3-D FEM. Through computational simulations and actual casting trials, the ductile cast-iron deck panel with uniform material property is produced successfully. To investigate its structural behavior, the panel is loaded statically. Ductile structural behavior is observed without initiating cracks. Fatigue test is carried out. No fatigue cracks occur even when the number of the loading cycles reaches 10,000,000. The wheel load running test of the 12 deck panels was conducted, ensuring that a very good fatigue resistance．</p>
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Pedrosa, B., J. Correia, G. Lesiuk, C. Rebelo, A. Jesus, and R. Calçada. "Mode I Fatigue Crack Growth Tests on Puddle Iron Strengthened with CFRP Plates." In IABSE Symposium, Wroclaw 2020: Synergy of Culture and Civil Engineering – History and Challenges. Zurich, Switzerland: International Association for Bridge and Structural Engineering (IABSE), 2020. http://dx.doi.org/10.2749/wroclaw.2020.0797.

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<p>One important subject related to structural integrity studies of bridges is to assess the fatigue behaviour of its materials and structural components. A fatigue crack initiates in zones where there is a concentration of stresses and then it may propagate at an increasing growth rate leading to structural failure. Normally, a rehabilitation campaign is associated with lower costs and time when compared to the replacement by a new bridge. The application of externally-bonded fibre reinforced polymer (FRP) plates has been used in the repair and strengthening operations of steel structures with fatigue damages. Within this subject, an experimental program was carried out to assess the fatigue crack growth (FCG) rates of old metallic materials from a centenary bridge strengthened with FRP composites. FCG tests were performed under pure-mode I loading conditions. This investigation allowed to determine the a-N curve as well as to assess the fatigue crack growth rates of reinforced and non-reinforced old metallic materials.</p>
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Krasovsky, V. I., and V. I. Brazinsky. "THE EFFECT OF IONIZING RADIATION ON STRUCTURAL MATERIAL." In SAKHAROV READINGS 2022: ENVIRONMENTAL PROBLEMS OF THE XXI CENTURY. International Sakharov Environmental Institute of Belarusian State University, 2022. http://dx.doi.org/10.46646/sakh-2022-2-338-341.

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This text analyzes the effect of neutron radiation on some structural material including iron-carbon alloys. Causes of destructive changes of crystal structure of materials.are considered Analogies are established in neutron irradiation and heat treatment of metals.
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Reports on the topic "Iron, structural"

1

Flinn, J. E. Rapid solidification processing of iron-base alloys for structural applications. Office of Scientific and Technical Information (OSTI), September 1991. http://dx.doi.org/10.2172/6199198.

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Arrott, Anthony S., Carey E. Stronach, and David R. Noakes. Mechanically Milled Iron Alloys for High-Temperature Magnetic and Structural Applications. Fort Belvoir, VA: Defense Technical Information Center, August 2003. http://dx.doi.org/10.21236/ada416833.

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Baer, Marcel, Chunlong Chen, Jay Grate, and Joseph Laureanti. Structural and Dynamical Design Principles for Iron-Sulfur Clusters in Sequence Defined Polymers. Office of Scientific and Technical Information (OSTI), September 2021. http://dx.doi.org/10.2172/1988629.

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Chen, Yona, Jeffrey Buyer, and Yitzhak Hadar. Microbial Activity in the Rhizosphere in Relation to the Iron Nutrition of Plants. United States Department of Agriculture, October 1993. http://dx.doi.org/10.32747/1993.7613020.bard.

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Iron is the fourth most abundant element in the soil, but since it forms insoluble hydroxides at neutral and basic pH, it often falls short of meeting the basic requirements of plants and microorganisms. Most aerobic and facultative aerobic microorganisms possess a high-affinity Fe transport system in which siderophores are excreted and the consequent Fe complex is taken up via a cognate specific receptor and a transport pathway. The role of the siderophore in Fe uptake by plants and microorganisms was the focus of this study. In this research Rhizopus arrhizus was found to produce a novel siderophore named Rhizoferrin when grown under Fe deficiency. This compound was purified and its chemical structure was elucidated. Fe-Rhizoferrin was found to alleviate Fe deficiency when applied to several plants grown in nutrient solutions. It was concluded that Fe-Rhizoferrin is the most efficient Fe source for plants when compared with other among microbial siderophores known to date and its activity equals that of the most efficient synthetic commercial iron fertilizer-Fe EDDHA. Siderophores produced by several rhizosphere organisms including Rhizopus Pseudomonas were purified. Monoclonal antibodies were produced and used to develop a method for detection of the siderophores produced by plant-growth-promoting microorganisms in barley rhizosphere. The presence of an Fe-ferrichrome uptake in fluorescent Pseudomonas spp. was demonstrated, and its structural requirements were mapped in P. putida with the help of biomimetic ferrichrome analogs. Using competition experiments, it was shown that FOB, Cop B and FC share at least one common determinant in their uptake pathway. Since FC analogs did not affect FOB or Cop-mediated 55Fe uptake, it could be concluded that these siderophores make use of a different receptor(s) than FC. Therefore, recognition of Cop, FOB and FC proceeds through different receptors having different structural requirements. On the other hand, the phytosiderophores mugineic acid (MA and DMA), were utilized indirectly via ligand exchange by P. putida. Receptors from different biological systems seem to differ in their structural requirements for siderophore recognition and uptake. The design of genus- or species-specific drugs, probes or chemicals, along with an understanding of plant-microbe and microbe-microbe relationships as well as developing methods to detect siderophores using monoclonal antibodies are useful for manipulating the composition of the rhizosphere microbial population for better plant growth, Fe-nutrition and protection from diseases.
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Thornell, Travis, Charles Weiss, Sarah Williams, Jennifer Jefcoat, Zackery McClelland, Todd Rushing, and Robert Moser. Magnetorheological composite materials (MRCMs) for instant and adaptable structural control. Engineer Research and Development Center (U.S.), November 2020. http://dx.doi.org/10.21079/11681/38721.

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Magnetic responsive materials can be used in a variety of applications. For structural applications, the ability to create tunable moduli from relatively soft materials with applied electromagnetic stimuli can be advantageous for light-weight protection. This study investigated magnetorheological composite materials involving carbonyl iron particles (CIP) embedded into two different systems. The first material system was a model cementitious system of CIP and kaolinite clay dispersed in mineral oil. The magnetorheological behaviors were investigated by using parallel plates with an attached magnetic accessory to evaluate deformations up to 1 T. The yield stress of these slurries was measured by using rotational and oscillatory experiments and was found to be controllable based on CIP loading and magnetic field strength with yield stresses ranging from 10 to 104 Pa. The second material system utilized a polystyrene-butadiene rubber solvent-cast films with CIP embedded. The flexible matrix can stiffen and become rigid when an external field is applied. For CIP loadings of 8% and 17% vol %, the storage modulus response for each loading stiffened by 22% and 74%, respectively.
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Anglin, C. D., and J. M. Franklin. Gold mineralization in the Beardmore-Geraldton area of northwestern Ontario: structural considerations and the role of iron formation. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1985. http://dx.doi.org/10.4095/120044.

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Tóth, Z., B. Lafrance, B. Dubé, V. J. McNicoll, P. Mercier-Langevin, and R. A. Creaser. Banded iron formation-hosted gold mineralization in the Geraldton area, northwestern Ontario: structural setting, mineralogical characteristics and geochronology. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2015. http://dx.doi.org/10.4095/296631.

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Jefferson, C. W., C. J. Beaumont-Smith, and R. L. Lustwerk. Stratigraphic and Structural Settings of Iron-Formations and Gold in the Back River area, District of Mackenzie, N.W.T. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1989. http://dx.doi.org/10.4095/126872.

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Westerman, R. E., J. H. Haberman, S. G. Pitman, B. A. Pulsipher, and L. A. Sigalla. Corrosion and environmental-mechanical characterization of iron-base nuclear waste package structural barrier materials. Annual report, FY 1984. Office of Scientific and Technical Information (OSTI), March 1986. http://dx.doi.org/10.2172/5851243.

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Tóth, Z., B. Lafrance, B. Dubé, P. Mercier-Langevin, and V. J. McNicoll. Structural setting, mineralogical characteristics and geochemical footprints of banded-iron-formation-hosted gold mineralization in the Geraldton area, Ontario. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2015. http://dx.doi.org/10.4095/295526.

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