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Tytuł:
Experience Gained during the Decommissioning of the SSEC from the VVR-S Nuclear Research Reactor
Autorzy:
Deju, R.
Iorga, I.
Gurau, D.
Powiązania:
https://bibliotekanauki.pl/articles/1033371.pdf
Data publikacji:
2017-01
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
28.41.Te
Opis:
The VVR-S nuclear research reactor owned by Horia Hubulei National Institute of Physics and Nuclear Engineering was designed for research and radioisotope production being permanently shut-down in 2002 after 40 years of operation. The decommissioning of the reactor started in 2010 and is planned to be finalized in 2020, being the first nuclear research reactor that has started the decommissioning project from the South-East of Europe. This paper presents the lessons learned from the decommissioning of systems, structures, equipment and components from pumps room. The experiences gained cover a diverse range of topics from planning, approval, radiological characterization process made, dismantling, equipment used, resources, etc. Radiation protection and economics are the key factors for the selection of technology for decommissioning. The evaluation of the available technology has been made and areas for improving the technology have been identified. Dedicated and advanced technologies were chosen to perform specific tasks. The project was planned well in advance. Safety aspects have been taken into consideration. Resource constraints have also been an important issue considered in defining the decommissioning strategy. Experiences and knowledge were presented and shared with the community.
Źródło:
Acta Physica Polonica A; 2017, 131, 1; 82-88
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Role of Operational Radioprotection Simulation in the Dismantling of the Protection and Control Rods of VVR-S Reactor
Autorzy:
Iorga, I.
Deju, R.
Gurau, D.
Mincu, M.
Powiązania:
https://bibliotekanauki.pl/articles/1033535.pdf
Data publikacji:
2017-03
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
28.41.Te
Opis:
The VVR-S nuclear research reactor owned by Horia Hubulei National Institute of Physics and Nuclear Engineering, has functioned between 1957 and 1997 at a nominal thermal power of 2 MW, using less-enriched nuclear fuel (10%), type EK-10, and highly enriched fuel (36%), type S-36. The reactor control was carried out by means of nine rods placed in the central part of the core. Four rods were used for the manual control of power, one for automatic control, three rods for reactor safety (emergency rods) and one for the fine control of power. One of the high hazard operations was the dismantling of the activated-contaminated control rods. Because of a higher radiological risk, simulation was performed to determine the expected maximum dose. The maximum gamma dose rate obtained using simulated results was 3.5 Sv/h, for the highly activated rod. In the real measurement, when the work was performed, the maximum gamma dose rate was 3 Sv/h. ⁹⁰Sr+⁹⁰Y are expected to be present in the control rods radioactivity.
Źródło:
Acta Physica Polonica A; 2017, 131, 3; 514-518
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
„Szkoła w internecie”: województwo podlaskie i mazowieckie – regionalne zróżnicowania w wykorzystaniu internetu w edukacji na poziomie podstawowym, gimnazjalnym i ponadgimnazjalnym
: “SCHOOL ON THE INTERNET”: PODLASKIE AND MAZOWIECKIE VOIVODESHIPS – REGIONAL VARIATIONS IN THE USE OF THE INTERNET IN PRIMARY, LOWER-SECONDARY AND SECONDARY EDUCATION
Autorzy:
Laskowski, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/597649.pdf
Data publikacji:
2012
Wydawca:
Uniwersytet w Białymstoku. Wydawnictwo Uniwersytetu w Białymstoku
Tematy:
TE INTERNET
REGIONAL DIFERENCES
SCHOOL WEBSITES
Opis:
Te article describes the regional variations in the use of the Internet in primary, lower-secondary and secondary schools in Podlaskie and Mazowieckie provinces. School sites were analyzed in terms of functionality, standards and the use of new forms and methods of creating the image of the website. Te results showed diferent levels of the use of Internet technologies and the opportunities associated with them. What surprises is the minimal degree of utilization of two-way communication with the available tools and programs designed for this purpose.
Źródło:
Pogranicze. Studia Społeczne; 2012, 20; 259-269
1230-2392
Pojawia się w:
Pogranicze. Studia Społeczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Influence of Ag2Te Addition on Thermoelectric Properties of Bismuth Telluride
Autorzy:
Drzewowska, Sylwia
Lan, Tian-Wey
Onderka, Bogusław
Powiązania:
https://bibliotekanauki.pl/articles/2048873.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
thermoelectric materials
Seebeck coefficient
resistivity
thermal diffusivity
Bi2Te3-Ag2Te system
Opis:
The resistivity, Seebeck coefficient and thermal diffusivity were determined for BiTe3 + Ag2Te composite mixtures. Subsequent measurements were carried out in the temperature range from 20 to 270°C, and for compositions from pure Bi2Te3 to xAg2Te = 0.65 selected along the pseudo-binary section of Ag-Bi-Te ternary system. It was found that conductivity vs. temperature dependence shows visible jump between 140 and 150°C in samples with highest Ag2Te content, which is due to monoclinic => cubic Ag2Te phase transformation. Measured Seebeck coefficient is negative for all samples indicating they are n-type semiconductors. Evaluated power factor is of the order 1.52·10-3 and it decreases with increasing Ag2Te content (at. %). Recalculated thermal conductivity is of the order of unity in W/(m K), and is decreasing with Ag2Te addition. Finally, evaluated Figure of Merit is 0.43 at 100°C and decreases with temperature rise.
Źródło:
Archives of Metallurgy and Materials; 2022, 67, 1; 5-15
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determination of Radiation Shielding Properties of Fabrics using Image Processing Method
Autorzy:
Kilinçarslan, Ş.
Üncü, İ.
Akkurt, İ.
Günoğlu, K.
Akarslan, F.
Coşkunsu, S.
Powiązania:
https://bibliotekanauki.pl/articles/1031660.pdf
Data publikacji:
2017-09
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
28.41.Te
07.05.Pj
Opis:
It is extremely important to protect the human body from radioactive rays. Protective clothing can be used to absorb radiation because it is preferable to avoid the natural and artificial radiation exposure in our daily lives. There are many different types of fabric, used for clothes. In this study radiation absorbing properties of fabrics, which are widely used in the daily life, such as alpaca-type fabric, cotton fabric, cotton polyester blend fabric, woven dyed fabric and knitted fabric were examined using the image processing method.
Źródło:
Acta Physica Polonica A; 2017, 132, 3; 1171-1172
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Te Deum Arvo Pärta. Między kompozytorskim métier a gatunkowym arché
Arvo Pärt’s Te Deum. Between composer’s métier and arché of the genre
Autorzy:
Wieczorek, Anna
Powiązania:
https://bibliotekanauki.pl/articles/513894.pdf
Data publikacji:
2014-10-01
Wydawca:
Uniwersytet Jagielloński. Koło Naukowe Studentów Muzykologii UJ
Tematy:
Arvo Pärt
Te Deum
tradition
genre
hymn
Opis:
The hymn of Te Deum laudamus is strongly rooted in the tradition of the Christian Church. Its history reaches back to the 14th century. It is a breviary hymn for Sunday and holiday Lauds. With time it emancipated from the Liturgy of the Hours and became an independent basis for many monumental compositions. The hymn by Pärt refers in many ways to the tradition of early music. However, the most essential foundation of the hymn is its own contemporary composer language and unique stylistic conception. Based on the tintinnabuli technique the hymn was influenced by Medieval Latin, Gregorian chorale, double vocal organum and baroque musical rhetoric (suspiratio, anabasis, katabasis, exclamatio etc.). The key is not only stylization of Gregorian chorale in all the verses beginning each part but also diatonic nature of the composition. Pärt’s Te Deum begins and ends with a silence. The internal dramaturgy of the hymn occurs in subtle tensions following one after another. Liturgical references are exposed by the composer by adding Amen and Sanctus to the source text. Te Deum is not a majestic ode to the God, as the hymn is dominated by the imploring and contemplating tone. The quintessence of this musical composition are pleas for mercy (Fiat misericordia tua), hope and belief in the Last Judgement (Iudex crederis esse venturus) featured in the two climax points.
Źródło:
Kwartalnik Młodych Muzykologów UJ; 2014, 4(23); 4-20
2956-4107
2353-7094
Pojawia się w:
Kwartalnik Młodych Muzykologów UJ
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ruch Młodej Polski. Historia i współczesne reminiscencje
Young Poland Movement
Autorzy:
Lewandowski, Arkadiusz
Powiązania:
https://bibliotekanauki.pl/articles/519690.pdf
Data publikacji:
2009
Wydawca:
Uniwersytet Mikołaja Kopernika w Toruniu. Wydawnictwo UMK
Tematy:
Młoda Polska
lata 90-te
myśl polityczna
Opis:
The article considers the phenomenon of one of the most intellectually active, anticommunist opposition group in Poland. The Young Poland Movement organiza- tion was established in 1979 and ended its activity after ten years. Furthermore, the magazine "Bratniak” constituted the main press measure in presenting the ideas of its members. The author presents the peculiarity of creating the Young Poland Movement, es- pecially the significance of the group connected with magazine "Bratniak”. Moreover, the author analyses the ideological declaration of Young Poland Movementand out-lines principal values acknowledged by the group. The article also emphasizes the importance of obstacles thatthe group was facing during the political transformation in Poland. The finał outcome of the events at the turn of the 1989 and 1990 was particularly visible in termination of Young Poland Movement activity. In order to such occurrence its members joined various political groups. Itcould be caused by two differentviews of political action, thatwere noticeable among the Young Poland Movement members.
Źródło:
Historia i Polityka; 2009, 1(8); 47-62
1899-5160
2391-7652
Pojawia się w:
Historia i Polityka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Historia zrealizowanego projektu
History of the completed project
Autorzy:
Birnbaum, Grażyna
Powiązania:
https://bibliotekanauki.pl/articles/2055834.pdf
Data publikacji:
2021
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
produkcja I-131
wzbogacony w Te-130 ditlenek telluru
production of I-131
Te-130 enriched tellurium dioxide
Opis:
Zastosowanie w reaktorze jądrowym wzbogaconego w nuklid Te-130 ditlenku telluru do otrzymywania I-131, w wyniku reakcji jądrowej (n, γ). W artykule przedstawiono korzyści, jakie można uzyskać po wprowadzeniu nowego surowca i plan dalszych badań
The use of Te-130 nuclide enriched tellurium dioxide in a nuclear reactor for the preparation of I-131 as a result of a nuclear reaction (n, γ). The article present the benefits that can be obtained after the introduction of a new raw material and a plan for further research.
Źródło:
Postępy Techniki Jądrowej; 2021, 3; 23--24
0551-6846
Pojawia się w:
Postępy Techniki Jądrowej
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dilatometric Analysis of the Sintering Behavior of Bi2Te3 Thermoelectric Powders
Autorzy:
Han, Ju-Yeon
Byun, Jong Min
Lee, Young-In
Choi, Byung Joon
Kim, Hogyoung
Oh, Sung-Tag
Powiązania:
https://bibliotekanauki.pl/articles/354899.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Bi2Te3
dilatometric analysis
sintering behavior
microstructure
Opis:
The sintering behavior of p-type bismuth telluride powder is investigated by means of dilatometric analysis. The alloy powders, prepared by ball milling of melt-spun ribbons, exhibit refined and flake shape. Differential thermal analysis reveals that the endothermic peak at about 280°C corresponds to the melting of bismuth, and peaks existing between 410°C and 510°C are presumably due to the oxidation and crystallization of the powder. The shrinkage behavior of ball-milled powders was strongly dependent of heating rate by the thermal effect exerted on specimens. In the case of 2°C/min, the peak temperature for the densification is measured at 406°C, while the peak temperature at a heating rate of 20°C/min is approximately 443°C. The relative density of specimen pressureless-sintered at 500°C exhibited relatively low value, and thus further study is required in order to increase the density of sintered body.
Źródło:
Archives of Metallurgy and Materials; 2020, 65, 3; 1117-1120
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of Electroless Ni–P Plating on the Bonding Strength of Bi–Te-Based Thermoelectric Modules
Autorzy:
Kim, S. S.
Son, I.
Kim, K. T.
Powiązania:
https://bibliotekanauki.pl/articles/356583.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
thermoelectric
Ni–P plating
bonding strength
Bi–Te
soldering
Opis:
In the present study, electroless Ni–P plating was applied to Bi–Te-based thermoelectric materials as a barrier layer and the effect of the Ni–P plating on the bonding strength of the thermoelectric module was investigated. The bonding strength of the n- and p-type modules increased after being subjected to the electroless Ni–P plating treatment. In the case of the thermoelectric module that was not subjected to electroless Ni–P plating, Sn and Te were interdiffused and formed a brittle Sn–Te-based metallic compound. The shearing mostly occurred on the bonding interface where such an intermetallic compound was formed. On the other hands, it was found from the FE-EPMA analysis of the bonding interface of thermoelectric module subjected to electroless Ni-P plating that the electroless Ni-P plating acted as an anti-diffusion layer, preventing the interdiffusion of Sn and Te. Therefore, by forming such an anti-diffusion layer on the surface of the Bi–Te based thermoelectric element, the bonding strength of the thermoelectric module could be increased.
Źródło:
Archives of Metallurgy and Materials; 2017, 62, 2B; 1225-1229
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł

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