nuclear reactivity
121ГОСТ 17137-87: Системы контроля, управления и защиты ядерных реакторов. Термины и определения — Терминология ГОСТ 17137 87: Системы контроля, управления и защиты ядерных реакторов. Термины и определения оригинал документа: 25. Аварийная защита ядерного реактора AЗ D. Schnellschlusssystem Е. Protection system Функция системы управления и… …
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122Isotopes of xenon — Naturally occurring xenon (Xe) is made of nine stable isotopes. (124Xe, 134Xe and 136Xe are predicted to undergo double beta decay, but this has never been observed, so they are considered to be stable.) [… …
123Systemic lupus erythematosus — For other uses, see lupus (disambiguation). Systemic lupus erythematosus Classification and external resources The typical butterfly rash found in lupus ICD 10 L …
124Yttrium — (pronEng|ˈɪtriəm) is a chemical element with symbol Y and atomic number 39. It is a silvery metallic transition metal chemically similar to the lanthanoids and has historically been classified as a rare earth element. Yttrium is almost always… …
125Tōkai, Ibaraki — nihongo|Tōkai|東海村|Tōkai mura is a village located in Naka District, Ibaraki, Japan. It is approximately 120 km north of Tokyo, Japan on the Pacific coast.As of 1 January 2005, the village has an estimated population of 35,467 and a density of 946 …
126Timeline of chemistry — lists important works, discoveries, ideas, inventions, and experiments that significantly changed mankind s understanding of the composition of matter and of the interactions thereof, the modern science known as chemistry. The history of… …
127relaxation phenomenon — ▪ physics and chemistry Introduction in physics and chemistry, an effect related to the delay between the application of an external stress to a system that is, to an aggregation of matter and its response. It may occur in nuclear, atomic,… …
128Organically moderated and cooled reactor — The organic moderated and cooled reactor (OCR) was an early power reactor concept studied in the formative years of nuclear power by the United States Atomic Energy Commission and others around the world. The concept reactor was very similar to… …
