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AbstractAbstract
[en] Uranium nitride microspheres were fabricated by internal gelation and carbothermic reduction. The influence of the thermal treatment and the reaction atmosphere on the chemical composition and the structural parameter of the spheres were systematically investigated. Hogh density (> 95% TD) spheres of 800 μ m diameter were obtained by reacting in argon-hydeogen followed by nitrogen-hydrogen. Porous spheres with a distinct pore and grain structure and low crushing strength as feed for pellets have been fabricated in nitrogen and nitrogen-hydrogen atmosphere. Special emphasis was put on a reliable determination of nitrogen and on X-ray diffraction for the chemical composition and on the correlation of the crushing strength to structural parameters. (orig.)
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Fall meeting of the European Materials Research Society (E-MRS). Symposium E on nuclear materials for fission reactors; Strasbourg (France); 5-8 Nov 1991
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Stanescu, Sorin Laurentiu; Vilain, Sébastien; Galieni, Valerio; Sheppard, Alex; Wright, Steve; Goh, George; Barbolina, Irina; Karpinska, Katarzyna; Guo, Wei; Li, Lin, E-mail: sorin.stanescu@lig-nanowise.com2017
AbstractAbstract
[en] The basic principle of the SMAL (Super-resolution Microsphere Amplifying Lens) imaging technology that we invented has its roots in the SMON (Submerged Microsphere Optical Nanoscope) pioneering work. SMAL is a novel objective lens whose front lens assembly contains a microsphere and is replaceable. We built a nanoscope prototype with nano XYZ scanning capability, which integrates a SMAL objective lens, allowing us to achieve super resolution imaging (70 nm – 90 nm). We have resolved large area scans (200 µm x 200 µm) by contactless sample scanning. (paper)
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Available from http://dx.doi.org/10.1088/1742-6596/902/1/012014; Country of input: International Atomic Energy Agency (IAEA)
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Journal Article
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Journal of Physics. Conference Series (Online); ISSN 1742-6596;
; v. 902(1); [4 p.]

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Ball, M.H.E.; Marshall, I.A.; Mitchell, J.P.; Rideal, G.
UKAEA Atomic Energy Establishment, Winfrith (UK). Chemistry Div1989
UKAEA Atomic Energy Establishment, Winfrith (UK). Chemistry Div1989
AbstractAbstract
[en] Polydisperse, non-porous microspheres are required with well-defined aerodynamic properties to determine if enhanced settling of micron-sized aerosol particles occurs in the presence of larger particles (gravitational agglomeration). Glass spheres with claimed unimodal narrow distributions were evaluated using a TSI Aerodynamic Particle Sizer (APS33B). The size fractions containing particles in the range from 1 to 5 μm aerodynamic diameter were truly unimodal, but the fractions which were supposed to consist solely of particles larger than 5 μm aerodynamic diameter contained a significant proportion of submicron particles. (author)
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Aug 1989; 23 p
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Report
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Pelage, Jean-Pierre; Fohlen, Audrey; Mitry, Emmanuel; Lagrange, Christine; Beauchet, Alain; Rougier, Philippe, E-mail: pelage-jp@chu-caen.fr2017
AbstractAbstract
No abstract available
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Copyright (c) 2017 Springer Science+Business Media New York and the Cardiovascular and Interventional Radiological Society of Europe (CIRSE); http://www.springer-ny.com; Country of input: International Atomic Energy Agency (IAEA)
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Melzer, A; Buttenschoen, B; Miksch, T; Passvogel, M; Block, D; Arp, O; Piel, A, E-mail: melzer@physik.uni-greifswald.de2010
AbstractAbstract
[en] We review recent experiments on the formation of finite systems of charged microspheres in dusty plasmas. There, finite arrangements of these dust clusters can be studied in different geometries ranging from 1D to 3D. The structure and the mode dynamics in these systems will be discussed.
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S0741-3335(10)60154-6; Available from http://dx.doi.org/10.1088/0741-3335/52/12/124028; Country of input: International Atomic Energy Agency (IAEA)
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AbstractAbstract
[en] Short communication
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Weizmann Inst. of Science, Rehovoth (Israel); 47 p; 22 Jun 1992; p. 27; 2. research workshop on quantum optics; Rehovot (Israel); 22-26 Jun 1992
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Related RecordRelated Record
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Lameiras, F.S.
Proceedings of the 35. Brazilian Congress on Ceramic; 3. Iberian American of Ceramic, Glasses and Refractories - v.11991
Proceedings of the 35. Brazilian Congress on Ceramic; 3. Iberian American of Ceramic, Glasses and Refractories - v.11991
AbstractAbstract
[en] Topological properties are more general than metrical ones. They are related physically with what can happen, and the metrical ones with how can happen. If all what can happen is not identified, the explanation of how things happen will be difficult. In most cases this problem is not faced, because the topological properties of a physical system are not modified. But this is not case of sintering, where its description based only on metrical properties may be complex. In this paper, the topological structures and transformations observed during sintering are identified with the help of very simple ideas and used to explain a complex sintering case of (Th,5%U)O sub(2) microspheres. (author)
Original Title
Um ponto de vista topologico da sinterizacao em Ex-gel-c-(Th, 5%U)O sub(2)
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Associacao Brasileira de Ceramica, Sao Paulo, SP (Brazil); 606 p; 1991; p. 382-389; 35. Brazilian congress on ceramic; Belo Horizonte, MG (Brazil); 26-29 May 1991; 3. Iberian American congress of ceramics, glasses and refractories; Belo Horizonte, MG (Brazil); 26-29 May 1991; Available from the Library of Comissao Nacional de Energia Nuclear, RJ, Brazil
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Miscellaneous
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AbstractAbstract
[en] A new method of fabricating electrophoretic display sheet was developed utilizing a photolithographic process. In this method, stripe-type barrier ribs with height of 50-80 μm and gap between ribs of 100-150 μm were patterned on the transparent electrode substrate by photolithographic process using a negative-type photoresist. Microspheres dispersed in UV curable monomer system were closely packed into the spaces between the barrier ribs. After laminating the upper ITO film, the resulting sheet was UV-irradiated to give an electrophoretic display panel with uniform packing of microspheres
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14. molecular electronics and devices symposium; Seoul (Korea, Republic of); 28-29 Mar 2003; S0928493103001218; Copyright (c) 2003 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
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Materials Science and Engineering. C, Biomimetic Materials, Sensors and Systems; ISSN 0928-4931;
; v. 24(1-2); p. 143-146

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AbstractAbstract
[en] Selective internal radiation therapy (SIRT) is used for the treatment of patients with liver tumors, especially for those with hepatocellular carcinoma (HCC) or liver metastases from various primary tumors. Currently this innovative treatment concept is recommended when established state-of-the-art treatment regimes have failed and tumor progression is noted or if the treatment has to be abandoned because of intolerable toxic effects. For SIRT small biocompatible microspheres (SIR-Spheres registered) are labelled with the radioactive isotope 90Yttrium, a pure beta emitter, and are superselectively infused into the hepatic arteries. The microspheres are collected in the precapillary vessels in and surrounding the tumor. The beta radiation of 90Yttrium has an average penetration in tissue of approximately 2.5 mm and results in very high doses of radiation being selectively targeted to metastases providing protection to the surrounding healthy liver tissue. In this paper we review the results of SIRT in patients with hepatic metastases from colorectal cancer, breast cancer, neuroendocrine tumors and primary liver cancer (HCC). (orig.)
[de]
Die selektive interne Radiotherapie (SIRT) wird zur Behandlung primaerer Lebertumoren, insbesondere dem hepatozellulaeren Karzinom (HCC) und von Lebermetastasen verschiedener Primaertumoren eingesetzt. Derzeit wird diese innovative Therapieform empfohlen, wenn unter klassischen und etablierten Therapiekonzepten eine Progression der Lebererkrankung zu verzeichnen ist oder diese Therapien auf Grund intolerabler Toxizitaet abgebrochen werden muessen. Bei der SIRT werden kleine biokompatible Harzmikrosphaeren (SIR-Spheres registered), die Betastrahlen emittierendes Yttrium-90 enthalten, ueber einen transarteriellen Zugangsweg superselektiv in die Leberarterien injiziert. Die Mikrosphaeren sammeln sich in praekapillaren Gefaessen in und um das Tumorgewebe an. Hier entfalten die Betastrahlen aufgrund ihrer geringen Penetrationstiefe von durchschnittlich 2,5 mm ihre lokale, strahlentherapeutische Wirkung unter Schonung des umgebenden, gesunden Leberparenchyms. In diesem Beitrag werden die Ergebnisse der SIRT bei hepatischen Metastasen des kolorektalen Karzinoms, des Mammakarzinoms und neuroendkriner Tumoren sowie beim primaeren Leberzellkrebs (HCC) dargestellt. (orig.)Original Title
Therapieresponse von Lebertumoren nach selektiver interner Radiotherapie
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Available from: http://dx.doi.org/10.1007/s00117-008-1730-x
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AbstractAbstract
No abstract available
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Copyright (c) 2006 Springer Science+Business Media, Inc.; www.springer-ny.com; Country of input: International Atomic Energy Agency (IAEA)
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