Relevant bibliographies by topics / Wire Tomography

Academic literature on the topic 'Wire Tomography'

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Published: 4 June 2021
Last updated: 31 January 2023

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Journal articles on the topic "Wire Tomography"

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Fil'kin, V. Y., E. I. Plashkin, N. I. Salunin, T. A. Morozova, G. K. Zelenskiy, L. V. Vlasova, V. A. Drobyshev, V. G. Zinov'ev, B. V. Yakovlev, and E. A. Oskolkov. "Superconducting wire for NMR-tomography." IEEE Transactions on Magnetics 28, no. 1 (1992): 648–50. http://dx.doi.org/10.1109/20.119961.

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Horne, Stefanie K., Gregory C. Park, Richard T. Dahlen, and Joseph Brennan. "Computed Tomography–Guided Wire Localization." Archives of Otolaryngology–Head & Neck Surgery 128, no. 2 (February 1, 2002): 187. http://dx.doi.org/10.1001/archotol.128.2.187.

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FUANGWORAWONG, N., H. KIKURA, M. ARITOMI, and T. KOMENO. "Tomographic imaging of counter-current bubbly flow by wire mesh tomography." Chemical Engineering Journal 130, no. 2-3 (June 1, 2007): 111–18. http://dx.doi.org/10.1016/j.cej.2006.08.033.

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Fuangworawong, N., W. Wangjiraniran, H. Muragawa, H. Kikura, and M. Aritomi. "Local parameter measurement of bubbly flow in vertical pipe by using Wire Mesh Tomography." Proceedings of the JSME annual meeting 2004.2 (2004): 261–62. http://dx.doi.org/10.1299/jsmemecjo.2004.2.0_261.

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Baroudi, Djebar, Jari Kaipio, and Erkki Somersalo. "Dynamical electric wire tomography: a time series approach." Inverse Problems 14, no. 4 (August 1, 1998): 799–813. http://dx.doi.org/10.1088/0266-5611/14/4/003.

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Mischok, A., F. Lemke, C. Reinhardt, R. Brückner, A. A. Zakhidov, S. I. Hintschich, H. Fröb, V. G. Lyssenko, and K. Leo. "Dispersion tomography of an organic photonic-wire microcavity." Applied Physics Letters 103, no. 18 (October 28, 2013): 183302. http://dx.doi.org/10.1063/1.4827820.

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Sun, Kai, and Yi Li. "An HDTV-SB imaging algorithm for wire-mesh tomography." Measurement Science and Technology 31, no. 4 (January 14, 2020): 045404. http://dx.doi.org/10.1088/1361-6501/ab463f.

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Danson, Edward James, Peter Hansen, and Ravinay Bhindi. "Wire bias in coronary measurement using optical coherence tomography." Cardiovascular Intervention and Therapeutics 33, no. 3 (May 24, 2017): 217–23. http://dx.doi.org/10.1007/s12928-017-0468-7.

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KIKURA, Hiroshige, and Masanori ARITOMI. "Visualization of Two-phase Bubbly Flows using Wire-mesh Tomography." Journal of the Visualization Society of Japan 27, no. 107 (2007): 259–64. http://dx.doi.org/10.3154/jvs.27.107_259.

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Li, W., C. B. Zhai, Y. J. Guan, L. J. Jing, Z. L. Zhang, and X. H. Zhao. "Preoperative computed tomography-guided hook-wire positioning of pulmonary nodules." Genetics and Molecular Research 14, no. 2 (2015): 3798–806. http://dx.doi.org/10.4238/2015.april.22.9.

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Dissertations / Theses on the topic "Wire Tomography"

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Kumar, Santhosh Tekke Athayil, and santhosh kumar@anu edu au. "Experimental Studies of Magnetic Islands, Configurations and Plasma Confinement in the H-1NF Heliac." The Australian National University. Research School of Physical Sciences and Engineering, 2008. http://thesis.anu.edu.au./public/adt-ANU20080611.171513.

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Rational magnetic flux surfaces in fusion (toroidal plasma confinement) devices can break the magnetic field lines and reconnect them in the form of magnetic islands. Formation of these magnetic islands can have a serious impact on the plasma confinement properties of the device. Islands can in general degrade the confinement by mixing up different regions of the plasma. However there has been experimental evidence of confinement improvement by island induced transport barriers, under certain conditions. Even though there are a large number of theoretical and experimental works on magnetic islands to date, there is clearly a paucity of convincing experimental understanding on the nature of behaviour of islands in plasma. This thesis reports detailed experimental studies conducted on the H-1NF heliac stellarator, to gain an in-depth understanding of magnetic islands and their influence in plasma confinement.¶ Work reported in this thesis can be mainly divided into three parts: (a) high resolution imaging of vacuum magnetic islands and flux surfaces of H-1NF, (b) accurate computer modeling of H-1NF magnetic geometry and (c) detailed experiments on magnetic islands in plasma configurations.¶ Electron-beam wire-tomography in the H-1NF has been used for the high resolution mapping of vacuum magnetic flux surfaces and islands. Point-to-point comparison of the mapping results with computer tracing, in conjunction with an image warping technique, has enabled systematic exploration of magnetic islands and surfaces of interest. A fast mapping technique has been developed, which significantly reduced the mapping time and made this technique suitable for mapping at higher magnetic fields.¶ Flux surface mapping has been carried out at various magnetic configurations and field strengths. The extreme accuracy of this technique has been exploited to understand the nature of error fields, by point-by-point matching with computer tracing results. This has helped in developing a best-fit computer model for H-1NF magnetic configurations, which can predict rotational transform correct to three decimal places. Results from plasma experiments on magnetic configuration studies are best explained by the new model.¶ Experiments with low order magnetic islands in plasma configurations yielded some new results. It has been observed that the low order magnetic islands (m = 2) near the core of the plasma serve as pockets of improved confinement region under favourable conditions. This results in significant profile modifications including enhancement of the radial electric field near the core to a large positive value. The characteristics of islands are found to be dependent on the plasma collisionality and the island width.¶ Experiments with a magnetic configuration which exhibits no vacuum islands, but the core rotational transform very close to low order rational value, show a spontaneous transition of the radial electric field near the core to a large positive value (nearly 5 kV/m), with a strong electric field shear (nearly 700 kV/m2) and localised improvement in confinement, during the discharge. Evidence indicates that the transition is driven by the excitation of low order magnetic islands near the axis during the plasma discharge, due to the modification of rotational transform profile by toroidal plasma currents. The situation is similar to the Core Electron-Root Confinement (CERC) observed during high temperature ECH plasma discharges on other helical devices. This result provides an experimental evidence for the hypothesis that the threshold conditions for observing CERC can be reduced by exciting magnetic islands near the core of the plasma.
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Bílek, Petr. "Rozvoj a využití nedestruktivních zkušebních metod z hlediska soudního inženýrství." Doctoral thesis, Vysoké učení technické v Brně. Ústav soudního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-408059.

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Concretes reinforced by, using distributed steel reinforcements (fibres) are known as fibre-concrete. In case of disturbances or accidents of concrete structures reinforced with wires, it is necessary to carefully examine the actual implementation of dispersed reinforcement. Fibre concretes belong to modern building materials whose possible applications have not been fully utilized so far. Have been mainly used for floor structures loaded with factory halls and warehouses. Recently, thanks to well-known physical and mechanical properties of fibre-concrete, there were numerous attempts of designers, and namely investors, to utilize this kind of materials for support structures either. Favorable properties of wire-concrete can be utilized if there is a necessity to increase the resistance of concrete to stresses exceeding its strength, cyclic stress or impact stress. Daily practice shows to prove that the applications of fibre-concrete in such structures lead to the economic success. Necessary condition for successful application of steel fiber reinforced concrete in constructions however consists in its uniform dispersion, a homogeneous distribution of the wires throughout the volume of the structure. In case of inappropriate processing and deposition of the mixture during the manufacturing process fiber-concrete structures, the fibers are often unevenly distributed. Wires itself represent unfavourably shaped mixture components and they are extremely deteriorating its workability. A grouping of wires may be encountered as well, which reduces the overall homogeneity and the quality of steel fiber-concrete structures. If the homogeneity of fibre-concrete is not kept, the material possess different properties in various parts of the structure (for example, tensile strength), which can lead to defects in the structure (generation and development of cracks). The relevant lower reliability of the structure which is caused by unequal distribution of fibres (wires) in concrete volume can lead to damage of the property as well as the safety and the human lives can be jeopardized. Hence it is necessary to secure the effective control of the fibre-concrete homogeneity in ready support fibre-concrete structures. Contemporary homogeneity control is still ongoing on fresh blends, but if the fibre-concrete hardened and is a part of the construction, no known reliable methods are currently in available to test the homogeneity of the fibre-concrete on the structure without its destruction. The methods developed to control the concentration of wires in wire-concrete structures are based mostly on magnetic or electromagnetic properties of wires. The thesis deals with the development of the magnetic method in situ using permanent magnets for monitoring the distribution of fibers in hardened steel fiber-concrete structures. The test principle is based on measurements of the changes in magnetic field strength of permanent magnets which are induced by a change in wire distribution in steel fibre-concrete structure. Test is characterized as a so called local- failure- test using a small diameter core drill. In this sense it is a semi-destructive method.
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Prasser, Horst-Michael. "3. Workshop "Meßtechnik für stationäre und transiente Mehrphasenströmungen", 14. Oktober 1999 in Rossendorf." Forschungszentrum Dresden, 2010. http://nbn-resolving.de/urn:nbn:de:bsz:d120-qucosa-30118.

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Am 14. Oktober 1999 wurde in Rossendorf die dritte Veranstaltung in einer Serie von Workshops über Meßtechnik für stationäre und transiente Mehrphasenströmungen durchgeführt. Dieses Jahr kann auf auf 11 interessante Vorträge zurückgeblickt werden. Besonders hervorzuheben sind die beiden Hauptvorträge, die von Herrn Professor Hetsroni aus Haifa und Herrn Dr. Sengpiel aus Karlsruhe gehalten wurden. Erneut lag ein wichtiger Schwerpunkt auf Meßverfahren, die räumliche Verteilungen von Phasenanteilen und Geschwindigkeiten sowie die Größe von Partikeln bzw. Blasen der dispersen Phase zugänglich machen. So wurde über einen dreidimensional arbeitenden Röntgentomographen, ein Verfahren zur Messung von Geschwindigkeitsprofilen mit Gittersensoren und eine Methode zur simultanen Messung von Blasengrößen sowie Feldern von Gas- und Flüssigkeitsgeschwindigkeit mit einer optischen Partikelverfolgungstechnik vorgetragen. Daneben wurden interessante Entwicklungen auf dem Gebiet der lokalen Sonden vorgestellt, wie z.B. eine Elektrodiffusionssonde. Neue meßtechnische Ansätze waren ebenfalls vertreten; hervorzuheben ist der Versuch, die Methode der optischen Tomographie für die Untersuchung von Zweiphasenströmungen nutzbar zu machen. Der Tagungsband enthält die folgenden Beiträge: S. John, R. Wilfer, N. Räbiger, Universität Bremen, Messung hydrodynamischer Parameter in Mehrphasenströmungen bei hohen Dispersphasengehalten mit Hilfe der Elektrodiffusionsmeßtechnik E. Krepper, A. Aszodi, Forschungszentrum Rossendorf, Temperatur- und Dampfgehaltsverteilungen bei Sieden in seitlich beheizten Tanks D. Hoppe, Forschungszentrum Rossendorf, Ein akustisches Resonanzverfahren zur Klassifizierung von Füllständen W. Sengpiel, V. Heinzel, M. Simon, Forschungszentrum Karlsruhe, Messungen der Eigenschaften von kontinuierlicher und disperser Phase in Luft-Wasser-Blasenströmungen R. Eschrich, VDI, Die Probestromentnahme zur Bestimmung der dispersen Phase einer Zweiphasenströmung U. Hampel, TU Dresden, Optische Tomographie O. Borchers, C. Busch, G. Eigenberger, Universität Stuttgart, Analyse der Hydrodynamik in Blasenströmungen mit einer Bildverarbeitungsmethode C. Zippe, Forschungszentrum Rossendorf, Beobachtung der Wechselwirkung von Blasen mit Gittersensoren mit einer Hochgeschwindigkeits-Videokamera H.-M. Prasser, Forschungszentrum Rossendorf, Geschwindigkeits- und Durchflußmessung mit Gittersensoren
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Prasser, Horst-Michael. "3. Workshop "Meßtechnik für stationäre und transiente Mehrphasenströmungen", 14. Oktober 1999 in Rossendorf." Forschungszentrum Rossendorf, 1999. https://hzdr.qucosa.de/id/qucosa%3A21838.

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Am 14. Oktober 1999 wurde in Rossendorf die dritte Veranstaltung in einer Serie von Workshops über Meßtechnik für stationäre und transiente Mehrphasenströmungen durchgeführt. Dieses Jahr kann auf auf 11 interessante Vorträge zurückgeblickt werden. Besonders hervorzuheben sind die beiden Hauptvorträge, die von Herrn Professor Hetsroni aus Haifa und Herrn Dr. Sengpiel aus Karlsruhe gehalten wurden. Erneut lag ein wichtiger Schwerpunkt auf Meßverfahren, die räumliche Verteilungen von Phasenanteilen und Geschwindigkeiten sowie die Größe von Partikeln bzw. Blasen der dispersen Phase zugänglich machen. So wurde über einen dreidimensional arbeitenden Röntgentomographen, ein Verfahren zur Messung von Geschwindigkeitsprofilen mit Gittersensoren und eine Methode zur simultanen Messung von Blasengrößen sowie Feldern von Gas- und Flüssigkeitsgeschwindigkeit mit einer optischen Partikelverfolgungstechnik vorgetragen. Daneben wurden interessante Entwicklungen auf dem Gebiet der lokalen Sonden vorgestellt, wie z.B. eine Elektrodiffusionssonde. Neue meßtechnische Ansätze waren ebenfalls vertreten; hervorzuheben ist der Versuch, die Methode der optischen Tomographie für die Untersuchung von Zweiphasenströmungen nutzbar zu machen. Der Tagungsband enthält die folgenden Beiträge: S. John, R. Wilfer, N. Räbiger, Universität Bremen, Messung hydrodynamischer Parameter in Mehrphasenströmungen bei hohen Dispersphasengehalten mit Hilfe der Elektrodiffusionsmeßtechnik E. Krepper, A. Aszodi, Forschungszentrum Rossendorf, Temperatur- und Dampfgehaltsverteilungen bei Sieden in seitlich beheizten Tanks D. Hoppe, Forschungszentrum Rossendorf, Ein akustisches Resonanzverfahren zur Klassifizierung von Füllständen W. Sengpiel, V. Heinzel, M. Simon, Forschungszentrum Karlsruhe, Messungen der Eigenschaften von kontinuierlicher und disperser Phase in Luft-Wasser-Blasenströmungen R. Eschrich, VDI, Die Probestromentnahme zur Bestimmung der dispersen Phase einer Zweiphasenströmung U. Hampel, TU Dresden, Optische Tomographie O. Borchers, C. Busch, G. Eigenberger, Universität Stuttgart, Analyse der Hydrodynamik in Blasenströmungen mit einer Bildverarbeitungsmethode C. Zippe, Forschungszentrum Rossendorf, Beobachtung der Wechselwirkung von Blasen mit Gittersensoren mit einer Hochgeschwindigkeits-Videokamera H.-M. Prasser, Forschungszentrum Rossendorf, Geschwindigkeits- und Durchflußmessung mit Gittersensoren
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Llamas, Juan David. "Étude expérimentale de la maldistribution des fluides dans un réacteur à lit fixe en écoulement à co-courant descendant de gaz et de liquide." Thesis, Vandoeuvre-les-Nancy, INPL, 2008. http://www.theses.fr/2008INPL006N/document.

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Trois techniques de mesure différentes ont été utilisées pour étudier la distribution des fluides dans un lit fixe : la tomographie à fils, le collecteur de liquide et un ensemble de thermistances. La tomographie à fils, dont la première application dans le cadre des lits fixes est décrite ici, a permis, tout comme le collecteur de liquide, d’obtenir des résultats intéressants concernant l’influence de paramètres tels que la distribution initiale, le type de chargement et les débits de fluides sur la distribution du liquide. L’étude a notamment montré l’importance de bien définir la maldistribution de liquide en termes de la grandeur mesurée et a apporté un regard critique vis-à-vis des consensus généraux concernant l’effet sur la distribution de liquide de paramètres tels que le débit de gaz (dont les expériences ont montré qu’elle dépend du distributeur utilisé) et le type de chargement (l’hypothèse selon laquelle le chargement dense disperse mieux le liquide dans la direction radiale par rapport au chargement lâche n’a pas été vérifié). Une étude réalisée en régime à haute interaction a permis aussi d’observer la relation étroite qui existe entre la distribution initiale et le régime d’écoulement
Three different measuring techniques were used to study the fluid distribution inside a trickle-bed reactor: the wire mesh tomography, the liquid collector and a set of thermistors. The liquid collector and specially the wire mesh tomography, whose first application in trickle bed reactors is described here, yielded interesting results concerning the influence of variables such as the initial liquid distribution, the loading method and the fluid flow rates on liquid maldistribution. Among the main observations, the study illustrates the importance of well defining liquid maldistribution in terms of the measured quantity and prompts to some caution when referring to some “normally accepted facts” like the advantages in terms of liquid distribution obtained when increasing the gas flow rate (which depends, according to this study, on the quality of initial liquid distribution) or when using a dense loading of the catalyst (the hypothesis according to which, compared with a sock loading, dense loading favors radial dispersion was not verified by the study). Also, a study performed under high interaction conditions showed the intimate relationship between the inlet distribution and the flow regime observed inside the reactor
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Berzeg, Semin. "Drahtmarkierung der pulmonalen Rundherde." Doctoral thesis, Humboldt-Universität zu Berlin, Medizinische Fakultät - Universitätsklinikum Charité, 2006. http://dx.doi.org/10.18452/15427.

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In der Studie wurde die Drahtmarkierung als Operationshilfsmethode vor der VATSvideo- assistierten Thorakoskopie bei der Abklärung von solitären pulmonalen Rundherden untersucht. Mit dieser Methode konnte der Lungenherd exakt markiert und transthorakal fixiert werden. Intraoperativ wurde der am Draht hängende Herd mit dosierter Kraft nach außen gezogen, endoskopisch verifiziert und komplikationslos entfernt. Bei der Drahtmarkierung wurden drei verschiedene Drähte benutzt, der größte Teil der Markierungen wurde mit dem Somatex-Lokalisationsset 18 G (84) Spiraldraht durchgeführt. Bei 3 Patienten wurde ein minimaler Pneumothorax, bei 5 Patienten eine geringe Einblutung und bei 2 Patienten ein großer Pneumothorax (>1 cm) und bei 3 Patienten beide Komplikationen festgestellt. Bei keinem Patienten war eine Dislokalisation des Drahtes aufgetreten. Chirurgen und Radiologen teilen die Meinung, dass der Spiraldraht patientenkomfortabel, treffsicher anwendbar und zukunftsträchtig ist. Die kombinierte Anwendung von Herdfixation mittels Spiraldraht und videothorakoskopischer Entfernung von Lungenherden ist für pleuraferne und daher oberflächlich nicht sichtbare Lungenherde empfehlenswert.
With the increasing use of multi-slice computed tomography (MSCT) pulmonary nodules are more often detected. The propose of our study was to evaluate use of the computed tomography guided spiral-wire localization before video-assisted thoracoscopic surgery (VATS). 54 patients with pulmonary nodules underwent ct-guided application of a spiralwire lung localization-set (Somatom, Berlin, Germany). The average age was 58 years, the mean distance between the nodule and the visceral pleura was 7,9 mm and the mean diameter was 13,1 mm. Following this procedure, the patients underwent a VATS resection. In all patients the placement of the spiral-wire was succesful without any dislocation. The major complications were: Asymtomatic pneumothorax, local bleeding and in 3 patients a combination of local bleeding and a minor pneumothorax. In conclusion wire localization of peripheral pulmonary nodules is a safe and effective procedure to assist VATS resection.
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McCaughey, Michael. "Travel-time tomography of wide-angle seismic data." Thesis, University of Cambridge, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.389868.

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Lester, W. Ryan. "Structure of the Chesapeake Bay Impact Crater from Wide-Angle Seismic Waveform Tomography." Thesis, Virginia Tech, 2006. http://hdl.handle.net/10919/35090.

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The Chesapeake Bay impact structure is one of the largest and most well preserved impact structures on Earth. It has a unique morphology composed of an inner crater penetrating crystalline basement surrounded by a wider crater in the overlying sediments. In 2004, the U.S. Geological Survey conducted a seismic survey with the goals of constraining crater structure and in support of the drilling of a borehole into the deepest part of the crater. Travel-time and waveform inversion were applied to the data to produce a high-resolution velocity model of the crater. Low-fold reflection processing was also applied. Northeast of the crystalline crater, undeformed, eastward-sloping crystalline basement is ~1.5 km deep. The edge of the inner crater is at ~ 15 km radius and slopes gradually down to a depth of 1.5 - 1.8 km. A central peak of 4-5 km radius rises to a depth of ~0.8 km. Basement velocity in the crystalline crater is much lower than undeformed basement, which suggests ~10% fracturing of the crater floor, and up to 20% fracturing of the central uplift. A basement uplift and lateral change of velocity, interpreted as the edge of the transient crater, occurs at a radius of ~ 11 km. Assuming a 22 km diameter transient crater, scaling laws predict a ~30 km diameter crater and central peak diameter of 8-10 km. This indicates that post-impact collapse processes that created the ~ 30 km diameter crystalline crater were unaffected by the much weaker rheology of the overlying sediments.
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Courtois, Loïc. "Monofilament entangled materials : relationship between microstructural properties and macroscopic behaviour." Thesis, Lyon, INSA, 2012. http://www.theses.fr/2012ISAL0138.

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Les matériaux architecturés attirent de plus en plus d’attentions de par leur capacité à combiner différentes propriétés ciblées. Dans ce contexte, les matériaux enchevêtrés, et plus particulièrement les matériaux monofilamentaires enchevêtrés, présentent des propriétés intéressantes en terme de légèreté, de ductilité, et de facteur de perte. En raison de l’architecture interne complexe de ces matériaux, leur caractérisation et la compréhension des mécanismes de déformation nécessitent une méthodologie adaptée. Dans cette étude, l’enchevêtrement est réalisé manuellement pour différents fils d’acier et soumis à une compression oedométrique. De manière à étudier le comportement sous charge de ce type de matériaux, un dispositif de compression uniaxiale guidée a été mis en place dans le tomographe. Il est ainsi possible de suivre, à l’aide de mesures quantitatives, la déformation de l’échantillon et l’évolution du nombre de contacts pour différentes fraction volumiques. L’utilisation de ces données microstructurales a permis un meilleure compréhension du comportement mécanique de tels enchevêtrements. Une rigidité pouvant varier de 20 à 200 MPa en fonction des paramètres de mise en forme (diamètre et forme du fil, fraction volumique, matériau constitutif) a été déterminé. Un matériau homogène de rigidité plus faible a pu être obtenu en pré-déformant le fil sous forme de ressort avant enchevêtrement. Le facteur de perte du matériau a ensuite été mesuré à la fois sous chargement statique et dynamique. L’analyse mécanique dynamique a mis en évidence la capacité de ce matériau à absorber de l’énergie avec une valeur de facteur de perte d’environ 0.25. Les propriétés mécaniques du matériau ont tout d’abord été modélisées analytiquement par un modèle de poutres et un bon accord avec les résultats expérimentaux a pu être obtenu en définissant un paramètre d’orientation equivalent, spécifique à la compression oedométrique de matériaux enchevêtrés. En parallèle, un modéle éléments discrets a été developé afin de simuler le comportement en compression de matériaux monofilamentaires enchevêtrés. Ce modèle s’appuie sur une discrétisation du fil en éléments sphériques, acquise à partir de données de tomographie. Bien que seul le comportement élastique du fil constitutif ait été pris en compte, une bonne adéquation entre résultats numériques et expérimentaux a été obtenu en ajustant les coefficients de frottement du modèle
Playing with the architecture of a material is a clever way of tailoring its properties for multi-functional applications. A lot of research have been made, in the past few years, on what is now referred to as “architectured materials” (metal foams, entangled materials, steel wool, etc), mostly for their capacity to be engineered in order to present specific properties, inherent to their architecture. In this context, some studies have been carried out concerning entangled materials but only a few on monofilament entangled materials. Such a material, with no filament ends, could exhibit interesting properties for shock absorption, vibration damping and ductility. In this study, entanglements were manually produced, using different types of wire, and submitted to constrained (inside a PTFE die) in-situ compressive tests within the laboratory tomograph. This technique enabled a 3D, non destructive, microstructural characterization of the complex architecture of these materials, along with the analysis of their macroscopic mechanical properties. The stiffness of this material was found to be in a 20-200 MPa range and homogeneous samples could be obtained, while lowering their stiffness, by pre-deforming the initial wire as a spring. Damping measurements were performed using different types of entanglements (constitutive materials, volume fraction, wire diameter, wire shape) under both monotonic and dynamic loadings and directly linked to the measurements of the number of contacts. The Dynamic Mechanical Analysis underlined the great capacity of this material to absorb energy with a loss factor of about 0.25 and damping was found to decrease with the stiffness of the entanglement. The mechanical properties of this material were first modeled using an analytical “beam” model based on the experimental evolution of the mean distance between contacts and a good agreement was found with the experimental results. In parallel, a Discrete Element Method was used in order to model the compressive behaviour of Monofilament Entangled Materials. Although purely elastic properties were taken into account in the model, a very good agreement with the experimental results was obtained by adjusting the friction coefficients of the model. This tends to prove that the plasticity of these entangled materials is rather due to the structure (friction) than to the constitutive material itself
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Hillman, Timothy R. "Microstructural information beyond the resolution limit : studies in two coherent, wide-field biomedical imaging systems." University of Western Australia. School of Electrical, Electronic and Computer Engineering, 2008. http://theses.library.uwa.edu.au/adt-WU2008.0085.

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Books on the topic "Wire Tomography"

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IAEA. Status of Computed Tomography Dosimetry for Wide Cone Beam Scanners. International Atomic Energy Agency, 2011.

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Lirette, Lesley, and Marc A. Huntoon. Atlanto-Axial Joint Injection: Computed Tomography and Fluoroscopy. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780199908004.003.0012.

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Atlanto-axial (AA) joint injections can be helpful in the diagnosis and management of occipital headaches stemming from the AA joint. Because of the complicated anatomic landscape, imaging guidance is vital in addition to a sound understanding of the anatomy. Several different image modalities are available for use in AA joint blocks. Fluoroscopy is the most widely used for its familiarity, relative low cost, and wide availability. The addition of digital subtraction angiography to the conventional fluoroscope offers an additional safety benefit when performing injections near critical blood vessels. Computed tomography guidance offers a better view that allows for visualization of the soft-tissue structures; however, its risk/benefit ratio limits its use in the everyday pain practice. Flat detector CT may offer a promising compromise, incorporating delayed CT images into the conventional fluoroscopy procedure. Safety is the highest priority when performing AA joint blocks to prevent potentially devastating outcomes.
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McLean, Donald, and Claire-Louise Chapple. CT dosimetry. Oxford University Press, 2015. http://dx.doi.org/10.1093/med/9780199655212.003.0015.

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The computed tomography (CT) medical examination is the highest single source of radiation to the general public in the developed world. Its use is rapidly growing, as is its technical complexity. The primary dosimetry formalism is based on the computed tomography dose index (CTDI), which can be measured in air or in standard phantoms using a calibrated pencil ionization chamber with adaptations for wide beam scanners. Displayed dose parameters can be used with caution to estimate patient organ doses, effective dose, and risk, using a variety of models and software. An understanding of automatic exposure control and the influence of patient size is essential when interpreting dosimetry results. CT examination protocols require optimisation, including the appropriate use of newly available dose reduction features. Particular consideration needs to be given to paediatric CT and to specialist applications such as radiotherapy planning, cardiac CT and volume imaging.
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Sabharwal, Nikant, Parthiban Arumugam, and Andrew Kelion. Introduction to nuclear cardiology. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780198759942.003.0001.

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The cardiologist of the early twenty-first century takes for granted the wide range of imaging modalities at his/her disposal, but it was not always so. At the beginning of the 1970s, invasive cardiac catheterization was the only reliable cardiac imaging technique. Subsequently, nuclear cardiology investigations led the way in the non-invasive assessment of cardiac disease. This chapter covers the history of nuclear cardiology, including important milestones in the development of nuclear medicine. It details the relation of nuclear cardiology to other imaging modalities, covering the common imaging modalities used to evaluate left ventricular function and coronary artery disease, and the challenges of multislice X-ray computed tomography.
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Коллектив, авторов. Труды Физико-технологического института. T. 29: Квантовые компьютеры, микро- и наноэлектроника: физика, технология, диагностика и моделирование. ФГУП «Издательство «Наука», 2020. http://dx.doi.org/10.7868/9785020408081.

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Настоящий том посвящен актуальным проблемам квантовых технологий и микроэлектроники. Рассмотрены различные численные и аналитические подходы к моделированию и контролю элементной базы квантовых компьютеров и симуляторов с учетом декогерентизации и квантовых шумов. Представлены современные методы, направленные на инжиниринг различных квантовых состояний, а также их адекватный, полный и точный контроль. Представлены разработки, обеспечивающие существенное улучшение процедур томографии квантовых состояний и операций с учетом несовершенства технологий и измерений. Кроме того, рассмотрены некоторые вопросы, связанные с разработкой и моделированием приборов микроэлектроники и наноэлектроники. Для широкого круга специалистов в области квантовых информационных технологий, микро- и наноэлектроники, а также студентов и аспирантов, обучающихся по соответствующим специальностям. This volume is devoted to topical problems of quantum technologies and microelectronics. Various numerical and analytical approaches to modeling and control of the element base of quantum computers and simulators, taking into account decoherence and quantum noise, are considered. The modern methods aimed at engineering various quantum states, as well as their adequate, complete and accurate control are presented. Developments are presented that provide a significant improvement in the procedures for tomography of quantum states and operations, taking into account the imperfection of technologies and measurements. In addition, some issues related to the development and modeling of microelectronic and nanoelectronic devices are considered. Intended for a wide range of specialists in the field of quantum information technologies, as well as in the field of micro- and nanoelectronics; it can also be recommended to undergraduate and graduate students of relevant specialties.вЃ
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Torgerson,, Paul R., C. N. L. Macpherson, and D. A. Vuitton. Cystic echinococcosis. Oxford University Press, 2011. http://dx.doi.org/10.1093/med/9780198570028.003.0060.

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Cystic echinococcosis (CE)\cystic hydatid disease is one of the most widespread and important global helminth zoonoses. The parasite Echinococcus granulosus is maintained in a wide spectrum of intermediate hosts, including sheep, goats, camels, cattle, pigs and equines. A number of wild intermediate hosts occur, including cervids in the northern part of the North American continent and Eurasia, marsupials in Australia and wild herbivores in East and southern Africa. The application of a range of molecular techniques to the characterization of the parasite has confirmed the existence of mostly host-adapted strains and genotypes of the parasite and several new species have been proposed. The ubiquitous domestic dog serves as the most important definitive host for the transmission of the parasite throughout its wide geographical range.A wide range of diagnostic techniques, including necropsy, arecoline purgation, coproantigen ELISA and DNA based tests are available for detecting E. granulosus infection in the definitive host. In intermediate animal hosts, diagnosis at post mortem still remains the most reliable option. In humans, imaging techniques including ultrasound, nuclear magnetic resonance (NMR) or computer aided tomography (CAT-scan provide not only a method of diagnosis but also reveal important clinical information on the location, condition, number and size of the hydatid cysts in man. Of these ultrasound is the most widely used diagnostic technique and is the only imaging technique for screening of populations in rural areas, where the disease is most common. A classification system has been developed which can be used to assess the likely development of a cyst and hence guide the clinician in treatment options for the patient. Treatment relies on surgery and/or percutaneous interventions, especially ‘Puncture, Aspiration, Injection, Re-aspiration’ (PAIR) and/or antiparasitic treatment with albendazole (and alternatively mebendazole).CE is largely a preventable disease. Successful elimination programmes have focused on frequent periodic treatments of dogs with anthelmintics and the control of slaughter of domestic livestock. In many regions elimination or even control remains a problem as the parasite is endemic over vast areas of low income countries where there may be limited resources for control. In some areas, such as former communist administered countries, the parasite is resurgent. New tools are becoming available to control the parasite, including a highly effective vaccine in sheep which prevents the infection in sheep and breaks the transmission cycle. In addition cost effective methods are being developed which may be appropriate in low income countries where financial resources are not available for intensive control programmes that have been successful in high income countries.
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Book chapters on the topic "Wire Tomography"

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Chen, Ping, Yanhu Ji, and Ningde Jin. "Study on Image Reconstruction Algorithms for Wire Mesh Tomography System." In Recent Advances in Computer Science and Information Engineering, 133–38. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-25792-6_21.

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Weishaupt, Dominik, Victor D. Köchli, and Borut Marincek. "Aufbau eines MR-Tomographen." In Wie funktioniert MRI?, 45–50. Berlin, Heidelberg: Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/978-3-662-10937-3_6.

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Köchli, Victor D., and Borut Marincek. "Aufbau eines MR-Tomographen." In Wie funktioniert MRI?, 21–23. Berlin, Heidelberg: Springer Berlin Heidelberg, 1998. http://dx.doi.org/10.1007/978-3-662-10938-0_5.

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Köchli, Victor D., and Borut Marincek. "Aufbau eines MR-Tomographen." In Wie funktioniert MRI?, 55–56. Berlin, Heidelberg: Springer Berlin Heidelberg, 1994. http://dx.doi.org/10.1007/978-3-662-13435-1_7.

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Weishaupt, Dominik. "Aufbau eines MR-Tomographen." In Wie funktioniert MRI?, 41–45. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-662-45883-9_6.

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Rodriguez, Oscar M. H., André M. Quintino, Marlon M. Hernández-Cely, and Francisco J. Nascimento. "State-of-the-Art Instrumentation and Experimental Methods Developed at the Industrial Multiphase Flow Laboratory over the Last 17 Years: From Gamma-Ray and Wire-Mesh Tomography to Physics-Informed Machine Learning." In Lecture Notes in Mechanical Engineering, 63–86. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-93456-9_7.

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Rothman, Adam L., Ramiro S. Maldonado, Lejla Vajzovic, and Cynthia A. Toth. "Optical Coherence Tomography and Wide-Field Fluorescein Angiography in Retinopathy of Prematurity." In Retinopathy of Prematurity, 29–41. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-52190-9_4.

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Wieczorowski, Michał, I. P. Yago, Pereira Domínguez Alejandro, Bartosz Gapiński, Grzegorz Budzik, and Magdalena Diering. "Comparison of Measurements Realized on Computed Tomograph and Optical Scanners for Elements Manufactured by Wire Arc Additive Manufacturing." In Lecture Notes in Mechanical Engineering, 127–41. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-03925-6_12.

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"Systemic veins." In Cardiovascular Computed Tomography, edited by James Stirrup, Russell Bull, Michelle Williams, and Ed Nicol, 477–86. Oxford University Press, 2019. http://dx.doi.org/10.1093/med/9780198809272.003.0028.

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Most contrast-enhanced scanning protocols of the thorax are designed to provide optimal visualization of the lungs, pulmonary arteries, heart, or aorta and its branches. Nevertheless, the systemic venous system is routinely imaged during CT examinations, but is often regarded as of secondary importance to the main indication for the scan. However, there are many clinical situations where the visualization of the systemic veins is of prime interest. These include assessment of SVC obstruction, IVC involvement, potential access routes for central venous line wire placement, and pre-operative assessment.
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"Aufbau eines MR-Tomographen." In Wie funktioniert MRI?, 37–40. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-89573-2_6.

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Conference papers on the topic "Wire Tomography"

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Ghoshal, Parama, Falguni Sinha, Siddhartha Sen, Gargi Das, Prasanta Kumar Das, and Prabhat Munshi. "Development and Application of Wire Mesh Tomography for Gas-Liquid Systems." In CT2008: TOMOGRAPHY CONFLUENCE: An International Conference on the Applications of Computerized Tomography. AIP, 2008. http://dx.doi.org/10.1063/1.2999986.

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Huang, Shan-Fang, Xiu-Gang Zhang, Dong Wang, and Zong-Hu Lin. "Wire-Mesh Capacitance Tomography in Gas-Liquid Flows." In MULTIPHASE FLOW: THE ULTIMATE MEASUREMENT CHALLENGE: Proc.of The 5th Int. Symp. on Measurement Techniques for Multiphase Flows (5th ISMTMF); 2nd Int. Wrkshp.on Process Tomography (IWPT-2) (As a part of ISMTMF); 5th ISMTMF/IWPT-2, 2006-Macau/Zhuhai). AIP, 2007. http://dx.doi.org/10.1063/1.2747503.

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Sun, Qing, and Huaxiang Wang. "Mesh Wire Tomography combined with a modified sensitivity map." In 2011 IEEE International Conference on Imaging Systems and Techniques (IST). IEEE, 2011. http://dx.doi.org/10.1109/ist.2011.5962191.

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Rodriguez Frias, Marco A., and Wuqiang Yang. "Dual-modality four-wire electrical capacitance and resistance tomography." In 2018 IEEE International Conference on Imaging Systems and Techniques (IST). IEEE, 2018. http://dx.doi.org/10.1109/ist.2018.8577174.

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Capasciutti, Thaina, Adriana Bonilla, and Oscar Mauricio Hernandez Rodriguez. "Three-phase oil-water-gas flow tomography by wire-mesh sensor." In 18th Brazilian Congress of Thermal Sciences and Engineering. ABCM, 2020. http://dx.doi.org/10.26678/abcm.encit2020.cit20-0284.

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Lao, Weimin, Lihui Peng, and Yi Li. "An image reconstruction method for improving resolution of capacitive wire mesh tomography." In 2017 IEEE International Conference on Imaging Systems and Techniques (IST). IEEE, 2017. http://dx.doi.org/10.1109/ist.2017.8261493.

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Nismayanti, Anis, Marlin R. Baidillah, Linahtadiya Andiani, Triwikantoro Triwikantoro, Endarko Endarko, and Warsito P. Taruno. "Electric Field Distribution Measurement for electrocapacitive cancer therapy by using Wire Mesh Tomography." In 2018 2nd International Conference on Biomedical Engineering (IBIOMED). IEEE, 2018. http://dx.doi.org/10.1109/ibiomed.2018.8534933.

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Flores, Miguel Angel Neri, Alberto Martinez Villafañe, and Caleb Carreño. "Failure Analysis of Automotive Ultrasonic Parking Sensors." In ISTFA 2016. ASM International, 2016. http://dx.doi.org/10.31399/asm.cp.istfa2016p0237.

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Abstract Automotive ultrasonic parking sensors were analyzed using X- ray computed tomography (XCT or microtomography), in order to determine if there were internal failures generated on the soldering process between copper wires and piezoelectric ceramic on these sensors. This paper reports the use of X-ray radiography and computer image processing for the study of internal defects. By using X-ray tomography technique, pores, cracks, holes, solder balling, insufficient solder, lead related defects, device related defects, and solder bridging may be identified (1-2). When coupled with a real time radiographic detector and image processor, X-ray technology allows instantaneous radiographic imaging and semi-automatic or totally automatic inspection. Analysis was conducted on six produced test samples showing that the application of XCT as a method of quality control of specimens produced by electronic packaging offers a wide range of possibilities to detect defects within materials. There were determined that five sensors contain internal defects on the soldered joints, between the copper wire, and the piezo electric ceramic covered with silver paint, as shown on the computed tomography. Accuracy of XCT method strongly depends on the size of the samples analyzed, but the possibility of obtaining information in 3D nondestructively shows considerable advantages of XCT method over traditional metallographic cross-sectional analysis.
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Xu, J., T. Liu, X. M. Yin, and Han Wang. "Automatic 3D wire loop tracing in computed tomography images using extended generalized cylinder modeling." In 2010 IEEE Conference on Cybernetics and Intelligent Systems (CIS) and IEEE Conference on Robotics, Automation and Mechatronics (RAM). IEEE, 2010. http://dx.doi.org/10.1109/iccis.2010.5518541.

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Zelong, Wang, Ken-ichi Tsuji, Toru Tsuji, Yuka Takai, and Akihiko Goto. "Analysis of ‘Kana-Ami’ Structure Between Expert and Non-Expert by Using X-Ray Computed Tomography (CT)." In ASME 2015 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/imece2015-51402.

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‘Kana-ami’ is a kind of metal wire network in Japan. This study aimed to focus on ‘Kana-ami’ technique development in order to keep this culture wealth and skill to the next generation. In this study, the two participants were selected for comparison called as expert and non-expert. The products made by participants were scanned by X-ray computed tomography precisely. The distance between two metal wires of ‘Right-line’ and ‘Left-line’ was calculated. The compression test also was performed to clarify the performance of final products. The expert’s product was shown smaller damage on the surface of Tofu in the end.
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Reports on the topic "Wire Tomography"

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Wendelberger, James. Registration of Laser Confocal Microscope (LCM), Wide Area Measurement System (WAMS), and X-Ray Tomographic (XRAY) Images. Office of Scientific and Technical Information (OSTI), September 2021. http://dx.doi.org/10.2172/1821351.

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