- medium lived
- средней долговечности ;
Англо-Русский словарь финансовых терминов. 2000.
Англо-Русский словарь финансовых терминов. 2000.
Long-lived fission product — Long lived fission products are radioactive materials with a long half life (more than 200,000 years) produced by nuclear fission. Contents 1 Evolution of radioactivity in nuclear waste 1.1 Short term 1.2 Medium lived fission products … Wikipedia
Sunrise English Medium School — Infobox School name =Sunrise English Medium School motto = Vidya Dadati Vinayam means Knowledge confers Humility. established =1975 free label =Foundation Day free text =16th January affiliation =ICSE, ISC type =Primary, Secondary students =2500… … Wikipedia
Environmental radioactivity — is produced by radioactive materials in the human environment. While some radioisotopes, such as strontium 90 (90Sr) and technetium 99 (99Tc), are only found on Earth as a result of human activity, and some, like potassium 40 (40K), are only… … Wikipedia
chemical element — Introduction also called element, any substance that cannot be decomposed into simpler substances by ordinary chemical processes. Elements are the fundamental materials of which all matter is composed. This article considers the… … Universalium
Radioactive waste — 2007 ISO radioactivity danger logo, designed in part for long term radioactive waste depositories which might survive into a far future time in which all knowledge of the meaning of present common radiation danger symbols and signs has been lost… … Wikipedia
Nuclear transmutation — is the conversion of one chemical element or isotope into another. In other words, atoms of one element can be changed into atoms of other element by transmutation . This occurs either through nuclear reactions (in which an outside particle… … Wikipedia
Isotopes of caesium — Caesium (Cs) has 40 known isotopes. The atomic masses of these isotopes range from 112 to 151. Only one isotope, 133Cs, is stable. The longest lived radioisotopes are 135Cs with a half life of 2.3 million years, 137Cs with a half life of 30.1671… … Wikipedia
London Borough of Lewisham — Infobox London Borough | name = London Borough of Lewisham short name = Lewisham imagename = status = London borough | area rank = 329th area km2 = 35.15 ons code = 00AZ | adminhq = Catford | ethnicity = 65.9% White 23.4% Black British 3.8% South … Wikipedia
Nuclear reprocessing — technology was developed to chemically separate and recover fissionable plutonium from irradiated nuclear fuel.[1] Reprocessing serves multiple purposes, whose relative importance has changed over time. Originally reprocessing was used solely to… … Wikipedia
Uranium-236 — Infobox isotope background = #fc6 text color = isotope name = Uranium 236 isotope filename = alternate names = mass number =236 symbol =U num neutrons =144 num protons =92 abundance =< 10^ 10 halflife = 2.348 x10^7 years error halflife = decay… … Wikipedia
Acer rubrum — taxobox image caption = Young specimen showing bright red fall foliage status = G5 status system = TNC status ref = Citation | last =NatureServe | contribution = Acer rubrum | title = NatureServe Explorer: An online encyclopedia of life, Version… … Wikipedia