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Some results uranium dioxide powder structure investigation
- Processes of Obtaining and Properties of Powders
- Published: 28 June 2009
- Volume 50 , pages 281–285, ( 2009 )
Cite this article
- E. I. Andreev 1 ,
- K. V. Glavin 2 ,
- A. V. Ivanov 3 ,
- V. V. Malovik 3 ,
- V. V. Martynov 3 &
- V. S. Panov 2
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7 Citations
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Features of the macrostructure and microstructure of uranium dioxide powders are considered. Assumptions are made on the mechanisms of the behavior of powders of various natures during pelletizing. Experimental data that reflect the effect of these powders on the quality of fuel pellets, which is evaluated by modern procedures, are presented. To investigate the structure of the powders, modern methods of electron microscopy, helium pycnometry, etc., are used. The presented results indicate the disadvantages of wet methods for obtaining the starting UO 2 powders by the ammonium diuranate (ADU) flow sheet because strong agglomerates and conglomerates, which complicate the process of pelletizing, are formed. The main directions of investigation that can lead to understanding the regularities of formation of the structure of starting UO 2 powders, which will allow one to control the process of their fabrication and stabilize the properties of powders and pellets, are emphasized.
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Investigation of the Properties of Uranium-Molybdenum Pellet Fuel for VVER
Investigation of the Influence of the Energy of Thermal Plasma on the Morphology and Phase Composition of Aluminosilicate Microspheres
Evaluation of the possibility of fabricating uranium-molybdenum fuel for vver by powder metallurgy methods.
Patlazhan, S.A., Poristost’ i mikrostruktura sluchainykh upakovok tverdykh sharov raznykh razmerov (Porosity and Microstructure of Chaotic Packings of Solid Spheres of Different Sizes), Chernogolovka: IKhF RAN, 1993.
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Andreev, E.I., Bocharov, A.S., Ivanov, A.V., et al., Izv. Vyssh. Uchebn. Zaved., Tsvetn. Metall. , 2003, no. 1, p. 48.
Assmann, H., Dörr, W., and Peehs, M., “Control of HO 2 Microstructure by Oxidative Sintering,” J. Nucl. Mater. , 1986, vol. 140,issue 1, pp. 1–6.
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Elektrostal’ Polytechnical Institute (Branch), Moscow Institute of Steel and Alloys, ul. Pervomaiskaya 7, Elektrostal’, Moscow oblast, 144000, Russia
E. I. Andreev
Moscow Institute of Steel and Alloys (State Technical University), Leninskii pr. 4, Moscow, 119049, Russia
K. V. Glavin & V. S. Panov
JSC “Mashinostroitelny Zavod”, ul. K. Marksa 12, Elektrostal’, Moscow oblast, 144001, Russia
A. V. Ivanov, V. V. Malovik & V. V. Martynov
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Correspondence to K. V. Glavin .
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Original Russian Text © E.I. Andreev, K.V. Glavin, A.V. Ivanov, V.V. Malovik, V.V. Martynov, V.S. Panov, 2009, published in Izvestiya VUZ. Poroshkovaya Metallurgiya i Funktsional’nye Pokrytiya, 2008, No. 4, pp. 19–24.
About this article
Andreev, E.I., Glavin, K.V., Ivanov, A.V. et al. Some results uranium dioxide powder structure investigation. Russ. J. Non-ferrous Metals 50 , 281–285 (2009). https://doi.org/10.3103/S1067821209030183
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Published : 28 June 2009
Issue Date : June 2009
DOI : https://doi.org/10.3103/S1067821209030183
The Unique Burial of a Child of Early Scythian Time at the Cemetery of Saryg-Bulun (Tuva)
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Pages: 379-406
In 1988, the Tuvan Archaeological Expedition (led by M. E. Kilunovskaya and V. A. Semenov) discovered a unique burial of the early Iron Age at Saryg-Bulun in Central Tuva. There are two burial mounds of the Aldy-Bel culture dated by 7th century BC. Within the barrows, which adjoined one another, forming a figure-of-eight, there were discovered 7 burials, from which a representative collection of artifacts was recovered. Burial 5 was the most unique, it was found in a coffin made of a larch trunk, with a tightly closed lid. Due to the preservative properties of larch and lack of air access, the coffin contained a well-preserved mummy of a child with an accompanying set of grave goods. The interred individual retained the skin on his face and had a leather headdress painted with red pigment and a coat, sewn from jerboa fur. The coat was belted with a leather belt with bronze ornaments and buckles. Besides that, a leather quiver with arrows with the shafts decorated with painted ornaments, fully preserved battle pick and a bow were buried in the coffin. Unexpectedly, the full-genomic analysis, showed that the individual was female. This fact opens a new aspect in the study of the social history of the Scythian society and perhaps brings us back to the myth of the Amazons, discussed by Herodotus. Of course, this discovery is unique in its preservation for the Scythian culture of Tuva and requires careful study and conservation.
Keywords: Tuva, Early Iron Age, early Scythian period, Aldy-Bel culture, barrow, burial in the coffin, mummy, full genome sequencing, aDNA
Information about authors: Marina Kilunovskaya (Saint Petersburg, Russian Federation). Candidate of Historical Sciences. Institute for the History of Material Culture of the Russian Academy of Sciences. Dvortsovaya Emb., 18, Saint Petersburg, 191186, Russian Federation E-mail: [email protected] Vladimir Semenov (Saint Petersburg, Russian Federation). Candidate of Historical Sciences. Institute for the History of Material Culture of the Russian Academy of Sciences. Dvortsovaya Emb., 18, Saint Petersburg, 191186, Russian Federation E-mail: [email protected] Varvara Busova (Moscow, Russian Federation). (Saint Petersburg, Russian Federation). Institute for the History of Material Culture of the Russian Academy of Sciences. Dvortsovaya Emb., 18, Saint Petersburg, 191186, Russian Federation E-mail: [email protected] Kharis Mustafin (Moscow, Russian Federation). Candidate of Technical Sciences. Moscow Institute of Physics and Technology. Institutsky Lane, 9, Dolgoprudny, 141701, Moscow Oblast, Russian Federation E-mail: [email protected] Irina Alborova (Moscow, Russian Federation). Candidate of Biological Sciences. Moscow Institute of Physics and Technology. Institutsky Lane, 9, Dolgoprudny, 141701, Moscow Oblast, Russian Federation E-mail: [email protected] Alina Matzvai (Moscow, Russian Federation). Moscow Institute of Physics and Technology. Institutsky Lane, 9, Dolgoprudny, 141701, Moscow Oblast, Russian Federation E-mail: [email protected]
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635th Anti-Aircraft Missile Regiment
635-й зенитно-ракетный полк
Military Unit: 86646
Activated 1953 in Stepanshchino, Moscow Oblast - initially as the 1945th Anti-Aircraft Artillery Regiment for Special Use and from 1955 as the 635th Anti-Aircraft Missile Regiment for Special Use.
1953 to 1984 equipped with 60 S-25 (SA-1) launchers:
- Launch area: 55 15 43N, 38 32 13E (US designation: Moscow SAM site E14-1)
- Support area: 55 16 50N, 38 32 28E
- Guidance area: 55 16 31N, 38 30 38E
1984 converted to the S-300PT (SA-10) with three independent battalions:
- 1st independent Anti-Aircraft Missile Battalion (Bessonovo, Moscow Oblast) - 55 09 34N, 38 22 26E
- 2nd independent Anti-Aircraft Missile Battalion and HQ (Stepanshchino, Moscow Oblast) - 55 15 31N, 38 32 23E
- 3rd independent Anti-Aircraft Missile Battalion (Shcherbovo, Moscow Oblast) - 55 22 32N, 38 43 33E
Disbanded 1.5.98.
Subordination:
- 1st Special Air Defence Corps , 1953 - 1.6.88
- 86th Air Defence Division , 1.6.88 - 1.10.94
- 86th Air Defence Brigade , 1.10.94 - 1.10.95
- 86th Air Defence Division , 1.10.95 - 1.5.98
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Dissertations and habilitations Book Series ERef and EPub server ... Mathematische Schriften (ISSN 0172-1062) was published by the Department of Mathematics of the University of Bayreuth between 1979 and 2011. It was devoted to original papers, Ph.D. theses, habilitation theses, lecture notes and monographs from all fields of mathematics. ...
Giant impact events in the early Earth have led to large-scale melting, potentially up to the entire planet becoming liquid. Some highly fractioned residual melt may have persisted at the base of the mantle contributing to the existence of ultra-low velocity zones and large low shear velocity provinces. The crystallization of silicate melt from the magma ocean, or residual reservoirs ...
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1 Publications of dissertations by BIGSAS Alumni (Update: 13.08.2021) Name Title Year Published Abdalla, Salma Mohamed Abdalmunim Charity Drops.
Features of the macrostructure and microstructure of uranium dioxide powders are considered. Assumptions are made on the mechanisms of the behavior of powders of various natures during pelletizing. Experimental data that reflect the effect of these powders on the quality of fuel pellets, which is evaluated by modern procedures, are presented. To investigate the structure of the powders, modern ...
Burial 5 was the most unique, it was found in a coffin made of a larch trunk, with a tightly closed lid. Due to the preservative properties of larch and lack of air access, the coffin contained a well-preserved mummy of a child with an accompanying set of grave goods. The interred individual retained the skin on his face and had a leather ...
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635th Anti-Aircraft Missile Regiment. 635-й зенитно-ракетный полк. Military Unit: 86646. Activated 1953 in Stepanshchino, Moscow Oblast - initially as the 1945th Anti-Aircraft Artillery Regiment for Special Use and from 1955 as the 635th Anti-Aircraft Missile Regiment for Special Use. 1953 to 1984 equipped with 60 S-25 (SA-1 ...