On the Recent Development of Uranium Ore Processing and Metal Production in Atomic Fuel Corporation

Author(s):  
Yoshiki IMAI
1992 ◽  
Vol 56 (3) ◽  
pp. 1165-1173 ◽  
Author(s):  
C.R. Paige ◽  
W.A. Kornicker ◽  
O.E. Hileman ◽  
W.J. Snodgrass

2011 ◽  
Vol 7 ◽  
pp. 158-162 ◽  
Author(s):  
Abhilash ◽  
K.D. Mehta ◽  
V. Kumar ◽  
B.D. Pandey ◽  
P.K. Tamrakar

2018 ◽  
Vol 15 (6) ◽  
pp. 54-64
Author(s):  
L V Luss ◽  
S V Tsarev ◽  
V I Astafurov ◽  
O I Sidorovich ◽  
M F Nikonova ◽  
...  

Aim. To study cellular and humoral immunological parameters of the employees of production sites located at the former mining and uranium ore processing territories. Materials and methods. In this work the clinical laboratory and immunological methods of examination were used. Statistical processing of the results was performed by using nonparametric analysis methods in the StatSoft Statistica 6 software package. Results. 101 employees of Chepetskiy mechanical plant were examined at the age of 19-62. 76 (75.2%) of them contacted with industrial factor, 64 - with radiation and 12 - with chemical. 25 (24.8%) employees had no contact with industrial factor. The immunological examination of the employees in contact with industrial factor revealed laboratory signs of imbalance in the immune system with IgE-overproduction. The risk group for secondary immunodeficiency with the leading infectious syndrome was 15.8%. Conclusion. Changes of cellular and humoral parameters on average values were not revealed. Infectious syndrome - recurrent ETN viral infections (13.9%) and herpes virus infection (13.9%) prevailed in the structure of the employees of Chepetskiy mechanical plant. A statistically significant difference in the content (percentage and absolute) of CD16+ lymphocytes was found in the employees of Chepetskiy mechanical plant contacted with industrial factor. These results had no clinical significance, what can be considered as an adaptive response to the chemical factor.


Atomic Energy ◽  
1962 ◽  
Vol 11 (2) ◽  
pp. 789-804
Author(s):  
A. P. Zefirov ◽  
B. N. Laskorin ◽  
B. V. Nevskii

Author(s):  
О.Н. Загородняя

Археологические источники свидетельствуют, что в тех или иных сообществах могли быть сосредоточены как все технологические процессы металлопроизводства, так и лишь отдельные из них (добыча, обогащение руды, металлургия и металлообработка). В качестве объектов изучения выступают, прежде всего, металлические изделия, различные категории орудий труда, а также древние рудники, которые представляют собой разновидность следов - видоизменений естественной структуры геологических напластований и ландшафта. Долгое время внимание исследователей было направлено преимущественно на изучение металлических изделий и литейных форм. Орудия попадали в поле зрения в зависимости от археологического контекста, указывающего на возможность их соотнесения с металлопроизводством. Ситуация изменилась с появлением методики, выявляющей и объясняющей характер и природу деформаций изготовления и изнашивания. Исследование включает систематизацию материалов из горных пород, кости и керамики из Картамышского археологического микрорайона в Донбассе БМСК позднебронзового века. Источниковая база составляет 1091 предмет. Для их изучения применены структурно-сырьевой, технологический, функциональный и контекстуальный анализы. Наиболее представительная серия металлопроизводственных орудий: горнодобывающие (мотыги, кайла, молоты) (рис. 1: 4-11), горно-обогатительные (песты-терочники, рудодробильные/рудотерочные плиты, орудия из кости, применяемые в процессе гравитации, совки), металлообрабатывающие (литейные формы, молотки, наковальни, абразивы, скребок) (рис. 2: 4-19). Выделен новый тип орудий из кости для гравитационного обогащения руды (рис. 3: 1-10). Следы на артефактах идентичны полученным в ходе экспериментов по сухому обогащению руды, гравитации и металлообработке следам. The paper reports on the studies of metalworking tools from the Kartamysh archaeological microregion. Archaeological sources demonstrate that both the complete production cycle (extraction, ore processing, metallurgy and metalworking) and the incomplete production cycle could be used by various communities. Metal goods, various types of tools, ancient pits were examined. The latter are represented by a variety of traces such as changes of the natural structure of the geological depositions and the landscape. The research includes systematization of the artifacts made from rocks, bone and ceramics from the Kartamysh archaeological microregion in Donbass (Berezhnovka-Maevka Timber-grave culture of the Late Bronze Age). The collection consisting of 1091 items was subjected to the structural/raw material, technological, functional and contextual analyses. The paper publishes a series of metal production tools such as mining tools (mattocks, hacks, hammers - Fig. 1: 4-11), ore processing tools (pestles/grinding stones, mortars/grinding slabs), metalworking instruments (moulds, hammers, anvils, abrasives, a scraper) (Fig. 2: 4-19). Bone tools for gravitational ore processing were singled out (Fig. 3: 1-10). Traces on the artifacts were compared with the traces obtained during experiments on dry ore processing, gravitation and metalworking.


Author(s):  
David D. Gilbertson ◽  
Sharon Taylor

We have explored, and outline herein, the accumulation of copper in humans, plants, and animals in a remote desert area of southwest Jordan, Wadi Faynan, where mining and smelting activities began about 7000 years ago and effectively ceased 1500 years ago. The archaeological core of the area, Khirbet Faynan, is the ruin of the Roman city of Phaino, one of the major mining and smelting centers of the Roman world. In addition, the Faynan area was one of the most important suppliers of copper to ancient Syria, Mesopotamia, and Egypt (Klein and Hauptmann 1999). Ancient industrial archaeology abounds in the form of adit and shaft mines, ore and metal processing sites, kilns, and spoil and slag heaps (Hauptmann et al. 1992, Hauptmann 2000). The industrial archaeology is closely associated with a complex and extensive irrigated system of fields, which must have been constructed and maintained to feed the workforce in this remote arid area (Barker et al. 1998, 2000). Wadi Faynan is therefore ideally suited to explore the environmental impact of metal production in the past, and its impact, if any, in the modern environment. The study area is located in the hot and very arid Jordanian Desert at the mountain front at the eastern margin of the Wadi Araba, between the Dead Sea and the Gulf of Aqaba. These environmental conditions promote the widespread deflation and redistribution of dusts, which inevitably include metalliferous materials released from eroding spoil and slag heaps and ore processing sites (Gee et al. 1997, Pyatt and Birch 1994). The geology of the region is very complex and of key importance to understanding the consequences of mining and pollution in the region. Copper and locally lead mineralization is present in several rock strata, in particular the Numaya Dolomite Limestone of the Durj Dolomite Shale Formation and the Umm’ Ishrin Sandstone Formation of Middle and Early Cambrian age (Barjous 1992, Bender 1974, Hauptmann 2000, Rabb’a 1992). Adjacent to Khirbet Faynan is a reservoir that was abandoned as a water storage facility before the fifth century BC.


1979 ◽  
Vol 42 (1) ◽  
pp. 115-115
Author(s):  
Arturo Bronson
Keyword(s):  

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